William Muir & Co. - Assigned Patents

Manufacturers Index - William Muir & Co.

William Muir & Co.
Manchester, England, U.K.
Manufacturer Class: Metal Working Machinery

Patents

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Patent Number	Date	Title	Name	City	Description
185,300,621	Sep. 01, 1853	Improvements in machinery or apparatus for grinding edge tools and other articles	William Muir	, England
185,301,410	Sep. 01, 1853	Improvements in turning lathes, a part of which improvements is applicable to other useful purposes	William Muir	, England
185,600,426	Feb. 20, 1856	Slide lathes for screw cutting	William Muir	, England
185,901,849	Aug. 10, 1859	Machinery for communicating motion to foot lathes and other machines to be worked by treadles	William Muir	, England
186,700,002	Jan. 01, 1867	Improvements in planing machines, which improvements are also applicable to other machines and engines in which sliding surfaces are employed	William Muir	, England
186,901,263	Apr. 24, 1869	Improvements in stocks and dies for screwing bolts and other articles	Alfred Muir	, England
187,600,318	Jan. 26, 1876	Improvements in preparing metal plates, bars, and rings, and in machinery employed therein	Alfred Muir	, England	Co-inventor was with the Hyde Junction Works, near Manchester; co-inventor Alfred Muir was with Wm. Muir & Co.
		Improvements in preparing metal plates, bars, and rings, and in machinery employed therein	Thomas Beeley	, England
187,703,560	Sep. 21, 1877	Improvements in machinery for cutting and shaping wood, metal, and other materials	Alfred Muir	, England	Co-inventor Alfred Muir was with the firm of William Muir & Co. in Manchester. We do not know anything about this invention other than the title.
		Improvements in machinery for cutting and shaping wood, metal, and other materials	George Mason	, England
187,903,105	Jul. 31, 1879	Improvements in Making "Dummys" or "Formers" for Shaping Edge-Milling or Profiling Machines	Alfred Muir	, England	Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of issue and the patent #. This patent is #3,105 of the year 1879.
187,905,059	Dec. 10, 1879	Improvements in shaping, edge-milling, or profiling machines	Alfred Muir	, England
136,622	May. 12, 1880	SystÃ¨me de machine Ã fraiser universelle, Ã la fois verticale, horizontale et oblique	Pierre Philippe HurÃ©	, France	This milling machine provided both horizontal and vertical spindles. It was a popular design for many years and was manufactured in England by William Muir & Co., which advertised it as "Hure's patent universal milling machines".
188,004,443	Oct. 30, 1880	Milling Cutters, Reamers, Flat Cutters, and Other Tools Used in Turning, Planing, Shaping, Boring, and Cutting Metal	Alfred Muir	, England	Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of issue and the patent #. This patent is #4,443 of the year 1880. Patented in the U. S., patent #241,695.
241,695	May. 17, 1881	Milling-cutter	Alfred Muir	, England	See British patent 188,004,443.
188,200,498	Feb. 01, 1882	Cutting machinery (cutting oval holes)	Alfred Muir	, England	We have not been able to find any details of this patent beyond the patent title.
188,303,865	Oct. 12, 1883	Coupling shafting	Alfred Muir	, England	See patent 297,153 for the US equivalent of this one. That patent notes that this invention was applicable to general machine shafting, but was particularly intended for coupling shafts in lathes and other machine tools.
297,153	Apr. 22, 1884	Coupling Shafting	Alfred Muir	, England
188,602,869	Oct. 15, 1886	Apparatus for Communicatting Reciprocating Motion to Planing and Other Machines	William Muir	, England	Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of issue and the patent #. This patent is #2869 of the year 1886. This apparatus comprises four coned sectional nuts, each nut consisting of four pieces A, B, C, D, of conical shape and provided with a screw thread on their inner faces. The nuts are connected in pairs and are capable of being simultaneously opened and closed to release and grip the right and left-hand threaded shafts K, L, on which each pair travel. This opening and closing operation is effected by bands or rings I, the inner portions of which are grooved for engaging and sliding upon shaped projections on the sections of the nuts. The two rings I of each pair are connected by links N and a lever R, and the two pairs are connected by a rod S. The two pairs of nuts working on the threaded shafts K, L, can be automatically thrown into and out of action by the extensions T, T of the rod S striking against a stop set on the side of the machine. One of the shafts may have a thread of a much quicker pitch so as to produce a quick return movement of the planing table.
427,887	May. 13, 1890	Metallic collar	Alfred Muir	, England
441,071	Nov. 18, 1890	Chuck	Alfred Muir	, England	Patented in England 28 Feb, 1890, #3,191.
189,202,082	Feb. 03, 1892	Tool Rests for Lathes	Alfred Muir	, England	Patented in the U. S., 07 Mar., 1893, #493,041.
493,231	Mar. 07, 1893	Chuck	Alfred Muir	, England	The inventor was the son of William Muir.
493,041	Mar. 07, 1893	Tool Rest for Lathes	Alfred Muir	, England	Patented in England, 03 Feb 1892, #189202,082.
190,223,348	Sep. 03, 1903	Improvements in Connection with the Sliding and Surfacing Carriages of Lathes	James H. Melloy	, England	Note: Early English patents were not originally numbered but they were later assigned consecutive numbers that run from GB-#1 of 1617 to #14359 of September 1852. From Oct 1852 until 1916, patents were numbered by the year and started at patent #1 at the start of each year in January. The patent number used in DATAMP represents the year of issue and the patent number. This patent is #23,348 issued in the year 1902. H. B. Barlow & Gillett, Chartered Patent Agents Abstract: The surfacing and sliding motions of a lathe are connected by gearing for taper turning and boring, and for cutting threads on conical surfaces. The usual cross-shaft 2, in the saddle 1, has a pinion 3, gearing with a wheel 4, loose on a bush, keyed on the spindle 6, which is provided with the usual rack pinion. A wheel 7, keyed on the bush, can be coupled to the wheel 4 by a friction clutch, and can be geared to a wheel 12, on a spindle 11, by pinions 13', 15 or by the pinion 13, the pinions being carried by a reversing-plate locked to the saddle by a bolt 30. Change-wheels 16, 20 on the spindle 11 and the surfacing-screw 22 respectively, are connected by wheels 17, 19 on a quadrant plate 9. The wheel 20 is connected to the screw 22 by a friction clutch.
190,505,725	Nov. 02, 1905	An Improved Tapping and Drilling Chuck	James H. Melloy	, England	Note: Early English patents were not originally numbered but they were later assigned consecutive numbers that run from GB-#1 of 1617 to #14359 of September 1852. From Oct 1852 until 1916, patents were numbered by the year and started at patent #1 at the start of each year in January. The patent number used in DATAMP represents the year of issue and the patent number. This patent is #5,725 issued in the year 1905. H. B. Barlow & Gillett, Chartered Patent Agents Abstract: A friction drive allows slip to occur and prevents damage to the tool. The shank a is centrally enlarged and has an inclined hole which receives a two-part spring wedge bolt b abutting against an eccentric ring h rotatably mounted on the shank. A socket e is retained on the shank by a plate f and is provided with a bush j for the tool, which may be secured by a catch k. A pointer i moves over a scale on the ring h graduated for different diameters of tools. Rotation of the ring h thrusts the wedge bolt between the ends of a spring ring, which provides a friction drive for the socket. When a tap reaches the bottom of a hole, the spring ring will slip.
190,626,052	Aug. 07, 1907	A New or Improved Machine for Milling Crank Shafts	James H. Melloy	, England	Note: Early English patents were not originally numbered but they were later assigned consecutive numbers that run from GB-#1 of 1617 to #14359 of September 1852. From Oct 1852 until 1916, patents were numbered by the year and started at patent #1 at the start of each year in January. The patent number used in DATAMP represents the year of issue and the patent number. This patent is #26,052 issued in the year 1906. H. B. Barlow & Gillett, Chartered Patent Agents Abstract: The worm r driving the feed mechanism of a milling-machine is disengaged from its wheel s by releasing a pin y on the worm shaft which is normally held in position by a lever x. The worm is lifted again into position by a lever 3.
190,628,735	Aug. 15, 1907	Improvements in Machines for Boring and Planing Torpedo Tubes and the Like	James H. Melloy	, England	Note: Early English patents were not originally numbered but they were later assigned consecutive numbers that run from GB-#1 of 1617 to #14359 of September 1852. From Oct 1852 until 1916, patents were numbered by the year and started at patent #1 at the start of each year in January. The patent number used in DATAMP represents the year of issue and the patent number. This patent is #28,735 issued in the year 1906. H. B. Barlow & Gillett, Chartered Patent Agents Abstract: In machines for boring and planing torpedo tubes &c.. the tool bar is steadied by movable supports a, Fig. 1, carried on the bed between each end bearing c, and the tube support d. The supports a'are adjustable by rack-and-pinion gear on brackets b, which are provided with setting-up wedges k. The tool bar g is circular in outline but is provided within this line with recesses g<1> and projections g<2>, Fig. 2, to form guideways for the tool head such that the planing- sleeve h, when the boring-collar i has been removed, can slide freely over the supports a.
190,716,557	Mar. 19, 1908	An Improvement in Fly or Screw Embossing Presses for Printers, Stationers and Others	James H. Melloy	, England	Note: Early English patents were not originally numbered but they were later assigned consecutive numbers that run from GB-#1 of 1617 to #14359 of September 1852. From Oct 1852 until 1916, patents were numbered by the year and started at patent #1 at the start of each year in January. The patent number used in DATAMP represents the year of issue and the patent number. This patent is #16,557 issued in the year 1907.
191,025,525	Mar. 02, 1911	A Combined Machine for Boring, Surfacing, Milling, Drilling and Tapping Metals	James H. Melloy	, England	Note: Early English patents were not originally numbered but they were later assigned consecutive numbers that run from GB-#1 of 1617 to #14359 of September 1852. From Oct 1852 until 1916, patents were numbered by the year and started at patent #1 at the start of each year in January. The patent number used in DATAMP represents the year of issue and the patent number. This patent is #25,525 issued in the year 1910. H. B. Barlow & Gillett, Chartered Patent Agents Abstract: In a combination machine tool, a hollow spindle c is driven at a comparatively low speed for boring, surfacing, or milling, and an inner spindle q is driven by change 'and differential gearing for transmitting the surfacing feedmotion, and is driven also at a high speed when serving as a drilling or tapping spindle, separate gearing being employed for the feed in this latter case. A driving-shaft j with a double toothed slidable wheel i may transmit motion by gearing h. f, e to the main hollow spindle c, and, by a clutch k, change gear l, m, and gearing o, p, the inner spindle q is rotated to transmit the feed through gearing r, s\ s<2> to a spur-wheel fixed on the feed screw. For drilling or tapping, the spindle q is driven through gearing i, v, x, p, the wheel o being thrown out of gear and the feed being transmitted through gearing y, l, m, z, 2, 3, 4.
191,026,039	Apr. 13, 1911	Improvements in Machines for Shaping, Planing and Slotting Metals	James H. Melloy	, England	Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of issue and the patent #. This patent is #26,039 of the year 1910. Abstract: A variable throw crank employed for stroke adjustment in slotting and like machines comprises a pin 16 carried by a ratchet-wheel 17 mounted eccentrically in a disk carrying the driving-pawl. Adjustment is effected by rotating the ratchet-wheel.
191,025,636	May. 04, 1911	Improvements in the Construction of Worm Milling Cutters or Hobs Employed in Gear Cutting	James H. Melloy	, England	Note: Early English patents were not originally numbered but they were later assigned consecutive numbers that run from GB-#1 of 1617 to #14359 of September 1852. From Oct 1852 until 1916, patents were numbered by the year and started at patent #1 at the start of each year in January. The patent number used in DATAMP represents the year of issue and the patent number. This patent is #25,636 issued in the year 1911.
191,106,595	Jun. 21, 1911	mprovements in Gear Hobbing Machines	James H. Melloy	, England	Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of issue and the patent #. This patent is #6,595 of the year 1911. Abstract: A gear-hobbing machine has a number of detachable rotary work-tables, provided with worm-wheels, to suit varying sizes of work. For the smallest sizes of work, the blanks are carried on a shaft supported on an outer stay c, Fig. 5, the work spindle e being driven by worm-wheel g and worm h. For larger work the outer stay is removed and the worm h put out of action, and one of a number of work-tables j<1>, Fig. 4, are placed on the spindle. These work-tables are driven by worms n mounted on a pivoted arm o driven bv bevelgearing from the shaft i; and the shaft h' carrying the worm h is mounted in eccentric bushes k, k<2>, k<3>, so that by turning the handle k<1> the shaft comes out of action with the wormwheel g and the bevel-wheel on the shaft i. When used for cutting double helical gears, two hobs are placed in the same standard, and one is fed up and the other down, thus balancing the thrust.
428,081	Aug. 22, 1911	Perfectionnements ApportÃ©s aux Machines Ã Faconner, Raboter et Mortaiser Les MÃ©taux	James H. Melloy	, England
191,205,379	May. 09, 1912	Improvements in Machines for Slotting and Similarly Treating Metals	James H. Melloy	, England	Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of issue and the patent #. This patent is #5,379 of the year 1912. Abstract: Webs are cut out of shafts for cranks &c. by making two parallel slots h<1>, h<2>, Fig. 6, one of them broad, and then slotting transversely by a cutter r at the same setting of the work. The cutter r is formed on a bar p clamped to the broad tool-holder d carried by the ram of the slotting-machine; the bar p is supported and guided in a bush q. The table i is fed towards the ram during the first slotting operation, and transversely during the second.
191,302,983	May. 29, 1913	Improvements in Connection With the Cutting Tools of Shaping, Planing and Slotting Machines	James H. Melloy	, England	Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of issue and the patent #. This patent is #2,983 of the year 1913. Abstract: Tools for use in planing and like machines comprise a cutter a having, for example, four cutting- edges secured in a shank c by a bolt d and a spiral spring which provides relief on the return stroke. A projection b engages a recess in the shank to lock the cutter firmly in position.
191,403,234	Jun. 25, 1914	Improvements in Connection with Dividing Mechanism for Gear Hobbing Machines	James H. Melloy	, England	Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of issue and the patent #. This patent is #3,234 of the year 1914.
		Improvements in Connection with Dividing Mechanism for Gear Hobbing Machines	Willie Owen	, England
191,503,600	Oct. 14, 1915	Improvements in Lathes for Operating Upon Breech Screws and Bushes of Heavy Ordnance.	James Henry Melloy	, England	Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of issue and the patent #. This patent is #3,600 of the year 1915. Abstract: Breech screws and bushes having interrupted threads, as shown in Fig. 8, are cut in a lathe in which the tool adjustments are made automatically, the threads being cut in a continuous operation. The face-plate is driven by a pinion T, Fig. 1, on a shaft R driven by gearing Q or P from a shaft M connected by differential gearing K<1>, Fig. 2, with a shaft H driven at G, F from a motor E. The cross-slide feed-screw is driven for controlling the cut, through reversing gearing 4, hand set. according to whether screws or bushes are to be cut, from a shaft 2 change-geared to a shaft 1 driven slowly in one direction by gearing W from the casing V of the differential, and rapidly in the other direction by gearing 11, 12 from the shaft R, as controlled by a cam-disk 10 operating a clutch Z, positive for the gearing Y and frictional for the gearing 12, the tool slide being brought back by this gear against a dead stop. The cam - disk 10 is driven through change-gear from the wheel 7. Dogs 14 mounted on the cam-disk and the casing V co-operate with a sliding bolt 13 in the headstock. With the work rotating in the direction of the arrow, Fig. 8, and the clutch Z engaging the gearing Y, which is stationary, the tool commences at 20 and cuts to 21. A dog on the disk 10 has an inclined portion which slides the bolt 13 holding the casing V, to release the casing and contact with a stop-portion on the dog, thus arresting the cam and face-plate. The rotation of the casing withdraws the tool the required amount for the next cut, and a dog on the casing V returns the bolt to its original position when cutting takes place from 21 to 22. After a repetition of the dog action, the point 23 is reached. The cam 10 then shifts the clutch Z, engaging the friction drive and returning the tool slide while the work rotates over the unthreaded portion, and finally resetting the clutch for the gearing Y, thus completing the cycle. Backlash, preventing.-The cross-slide feed-screw is actuated by a rotary nut 6 made in two parts, as shown in Fig. 11, to take up back-lash. H. B. Barlow & Gillett, Chartered Patent Agents
104,141	Feb. 22, 1917	Improvements in Machines for Boring, Milling, Surfacing and Tapping Metals	James H. Melloy	, England	Abstract: The tools of rotary tool-heads are mounted on slides B, fed axially along the main slides, which are fed radially as described in Specification 25525/10. The slides B are fed by screws C driven through the bevel-gearing shown, from an annulus J loose on the tool-head and geared through differential gearing S to a handwheel shaft y and to the tool-head at P. The gearing is so arranged that, when the hand-wheel is stationary, feed is not imparted to the slide.
		Improvements in Machines for Boring, Milling, Surfacing and Tapping Metals	Willie Owen	, England
110,325	Oct. 18, 1917	Improvements in Machine Tools employing Worm Gearing for Dividing Purposes	James H. Melloy	, England	Abstract: Gear-cutting; backlash, preventing.-Means are provided for compensating for wear and preventing back-lash in the worm-gearing driving the work-tables in machines for cutting toothed gears and in other machines employing worm gearing for dividing purposes. The invention is shown as applied to a bobbing-machine such as is described in Specification 6595/11, in which the work is carried on a table rotated by a worm-wheel b driven by a worm d. The worm spindle is carried in a cradle n of semi-circular cross-section which is secured at p into a bracket a carried on the machine-bed. A lever r pivoted in the bracket a has an arm passing through an opening in the cradle n and bearing on the working surface of the worm d under the pull of a spring s. The other end of the lever r carries a contact point which as shown is just clear of a fixed point v. As the worm rotates, the lever swings through the angle shown by the dotted lines, and on the completion of one revolution, a gap t in the worm allows the lever to return to the position shown. When the worm shows appreciable wear, the position of swing of the lever r varies and the contact-points complete an electric circuit and give an audible or other signal. The attendant can then, by means of a hand-wheel z and wormgear, rotate the cradle n and move the worm to the left to compensate for the wear. In a modification, the wear is compensated for automatically by arranging the lever r to vibrate a pawl on a ratchet-wheel in such a position that when the lever vibrates through its normal arc the ratchet-wheel is not moved. When the position of the arc changes owing to wear of the worm, the pawl engages a tooth and rotates the ratchet-wheel and through the gear described above rotates the cradle n. The worm d has one end parallel to the thread and has mounted alongside a similar ended worm-piece c free to move endways on the spindle. The other end of this piece c is severed to taka a nut h which bears against a thrust-washer m and is secured to one end of a coiled spring, the other end of which is secured to the pin r. This spring tends to rotate the nut h so as to push the piece e to the right so that the thread bears on the back of the teeth on the table b and prevents backlash.
		Improvements in Machine Tools employing Worm Gearing for Dividing Purposes	Willie Owen	, England
126,931	May. 22, 1919	Improvements in and relating to Gear Cutting, Slotting and like Machines	James H. Melloy	, England	Abstract: In a machine for cutting spur and spiral gears by a reciprocating generating cutter, the indexing motion is performed instantly by dropping the work back at the end of the rolling motion a pitch or more than one pitch during the interval between the cutter leaving the work and re-entering it, in order to avoid any pause in the cutting. The rack-cutter E is carried by a vertically reciprocating slide A. and the work is carried by a table J, which is rotated on a cross-slide H<1>, mounted on an adjustable slide H. The cross-slide H<1> is traversed during cutting by a scroll cam Q on a shaft P acting against a similar fixed cam Q<1> on the slide H<1>, the pitch of the cam Q being equal to or a multiple of the pitch of the gear being operated on. On completion of a revolution of the shaft P, the cross-slide H' is pressed back by spirngs S or other means a distance equal to the pitch of the cam and cutting automatically recommences. The table J is rotated by worm and spur gear from the shaft P, which is rotated by gear L' from the shaft L.
		Improvements in and relating to Gear Cutting, Slotting and like Machines	Willie Owen	, England
126,930	May. 22, 1919	Improvements in and relating to Gear Cutting, Slotting and like Machines	James H. Melloy	, England	Abstract: In a machine for cutting spur and spiral gears by a reciprocating generating cutter, the indexing motion is performed instantly by dropping the cutter back at the end of the rolling motion a pitch or more than one pitch during the interval between the cutter leaving the work and re-entering it, in order to avoid any pause in the cutting. The rack-cutter E is carried in the saddle C, which is traversed across the ram slide A during cutting by a scroll cam Q on a shaft P, acting against a similar fixed cam Q<1> on the saddle, the pitch of the cam Q being equal to or a multiple of the pitch of the gear being operated on. On completion of a revolution of the shaft P, the saddle C is pressed back by springs S or other means a distance equal to the pitch of the cam, and cutting automatically recommences. The shaft P is rotated by gear 0 from the shaft N and the work-carrying table J is rotated on the adjustable slide H by worm-gear K and change-wheels M through the shaft L.
		Improvements in and relating to Gear Cutting, Slotting and like Machines	Willie Owen	, England
146,769	Jul. 15, 1920	Improvements in Rack Formed Cutters for Generating Gears	James H. Melloy	, England	Abstract: A rack cutter for use in tooth curve generating by planing or shaping is formed in sections, one section A being a roughing cutter ground to out on the end and sides and being tongued to the finishing cutter B that is ground to cut on the sides only. The complete cutter may consist of a number of sections such as A, B arranged side by side in the holder. A roughing cutter such as A may be used in combination with an ordinary rack formed tool ground to cut on all three edges.
510,319	Dec. 02, 1920	Perfectionnements ApportÃ©s aux Machines Ã Tailler Les Engrenages, aux Machines Ã Mortaiser et Autres Machines Analogues	James H. Melloy	, England
		Perfectionnements ApportÃ©s aux Machines Ã Tailler Les Engrenages, aux Machines Ã Mortaiser et Autres Machines Analogues	Willie Owen	, England
215,366	Jan. 24, 1922	Gear Cutting Machine	James H. Melloy	, England	Patented in the U. S., patent #1,422,462.
		Gear Cutting Machine	Willie Owen	, England
182,367	Jul. 06, 1922	Improvements Relating to Gearing and Machines for Cutting the Same	James H. Melloy	, England	Abstract: Gear-wheels are generated by a rack-tooth cutter so that the working faces of the teeth are of similar curved form, as shown in Fig. 1, whilst the teeth are of correct involute form on all sections at right-angles to the axis of the wheel. The blank a is carried on a table which is given the requisite movements by the gear described in Specification 136,@31 for example. The rack-tool j is carried by the outer of two slides c, d, respectively. The slide c is given a vertical reciprocation by the means described in the aforesaid Specification, for instance, and the outer slide is constrained to move across the face of the slide c by a link e mounted on a pivot f which may be adjusted in position by a screw h.
1,422,462	Jul. 11, 1922	Gear Cutting, Slotting, and Like Machine	James H. Melloy	, England	William Wallace White, patent attorney. Patnted in Canada, patent #215,366.
		Gear Cutting, Slotting, and Like Machine	Willie Owen	, England
214,335	Apr. 22, 1924	Improvements Relating to the Production of Gear Wheels	James H. Melloy	, England	Abstract: The spiral angle of the teeth of a helicoidal gear wheel is ascertained while. the wheel is being cut by mounting upon the tool carrying slide of the cutting machine a bracket b carrying a narrow toothed wheel c that can be brought into engagement with the teeth being cut. The wheel c, which can rotate freely, has a boss on which an arm d is secured. A clock type indicator f is carried by a block g adjustable upon the bracket b and another clock type indicator i is arranged upon the . tool slide to co-operate with a dead length gauge h. In operation the wheel c is brought into contact with the teeth of the gear k being tested, the gauge h being in place and both indicators being at zero. The gauge h is removed and the tool slide travelled along the machine until the indicator i is engaged by the stop against which the gauge h was held, the wheel c rotating through its engagement with the teeth of the gear k. A bar m with adjustable end pieces is then used to measure the diaphragm between the stops on the arms and the indicator f. The bar m and gauge h are then used to test the spiral angle of the teeth of the gear that is to mate with the gear k and if error is found the work is adjusted in the machine to correct such error.
220,854	Aug. 28, 1924	Improvements Relating to Cutting Tools for Slotting and Like Machines	James H. Melloy	, England	Abstract: In cutting-tools for slotting and like machines of the type in which the tool is secured in a holder by a bolt and spiral spring arranged to provide relief on the return stroke, means are provided for moving the tool from engagement with the holder and relieving it of spring pressure, thus facilitating replacement of the cutter without removing the tool-holder from position in the tool-box. The lateral apertures g, h in the tool-carrying bolt e and in the tool-holder c are provided for the insertion of a tommy-bar or the like so that the bolt can be moved to relieve the tool a of spring pressure. A collar f on the bolt limits the relieving' movement of the cutter.
227,571	Jan. 22, 1925	Improvements in Metal Slotting and Milling Machines	James H. Melloy	, England	Marks & Clark, patent agents Abstract: In slotting and milling- machines for treating a number of articles simultaneously to produce circular and elliptical shapes the articles are mounted on a work-table having a resultant motion caused by two pin-and-slot motions at right angles, and are presented to slotting-tools or to revolving cutters working in fixed bearings on the machine. A row of cutters b is mounted in the frame a and a corresponding row of articles c is moved relatively thereto. The articles are clamped on the table d which has one pin-and-slot connection j with a block g carried by the member e and adjustable on the screwed shaft i, and a second with a screwadjusted pin k working in a slot in the base plate at right angles to the slot n. The member e is rotated by the worm gearing p, q. By adjusting the blocks on the screwed shafts, the movement of the table can be regulated to produce the required shapes.
259,363	Oct. 14, 1926	Improvements Relating to Gear Generating Machines	James H. Melloy	, England	Abstract: In a gear generating machine of the kind in which the blank is mounted on a rotary table driven by a master worm a and worm-wheel c means are provided for imparting uniform rotary and axial movements to the master worm, the axial movement being compensated by synchronous variations of the rotary movement so that the blank rotation remains uniform. The worm shaft b is driven from a shaft r through bevel gearing p, shaft o, worm gearing m, and differential gearing d. The axial movement is imparted to the shaft b by means of a non-rotary screwed sleeve s mounted between collars on the shaft and traversed by means of a threaded nut-member u integral with a worm-wheel v which is driven from the shaft o through bevel gearing z, shaft 1, change gears 2 - - 5, shaft x, and worm w. In order to compensate for this axial movement, the casing of the differential gearing is rotated by worm gearing i driven through spur gearing 6, 7 from the shaft x. The master worm may be axially advanced or withdrawn continuously or it may be alternately advanced and withdrawn.
		Improvements Relating to Gear Generating Machines	Willie Owen	, England
346,944	Apr. 23, 1931	Improvements Relating to Puncher-slotting Machines	Vernon Charles Norman Wood	, England	Abstract: A slotting-machine of the puncher type is provided with a head a which carries the vertical tool ram b and is fed intermittently during operation and continuously at high speed for adjustment on horizontal ways while the work table c, which moves transversely of the tool-head, is also provided with an intermittent operative feed and a quick-traversing setting-feed. The quick traverse movements are derived from a motor d which is connected through gears e, f, g, i to a nut j on the traversing screw j<1> of the table and through gears e, f, g, h, k to a screw m operating the head a. The reciprocation of the tool slide is effected by a motor n which acts through gears o .. r and crank pin s or a slotted lever t engaging the tool slide in the manner described in Specification 26039/10, [Class 83 (iii), Metals, Cutting]. The intermittent feeds are derived from the crank pin s which engages a slotted member u carrying a pin v actuating a Geneva wheel w, the latter being connected through gears y, change-speed gears z, and reversing bevel gearing 2 to the shaft which operates the screw m and the nut j. By suitable clutches, the feed movement may be imparted either to the head a or to the table c, or to both. The intermittent feed is disengaged when the motor d is in motion. The slot u<1> is curved to correspond with the path of adjustment of the crank pin s so that the feed occurs at the same part of the stroke for all settings of the pin s. The tool head is held down on its guides by tapered gibs 3 .. 6, which are inserted from opposite sides of the head. Similar tapered gibs 7, 8 prevent lateral movement of the head.