Alfred Herbert, Ltd. - Assigned Patents

Manufacturers Index - Alfred Herbert, Ltd.

Alfred Herbert, Ltd.
Coventry, West Midlands, England, U.K.
Manufacturer Class: Metal Working Machinery

Patents

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Patent Number	Date	Title	Name	City	Description
189,729,569	Dec. 13, 1898	Improvements in or relating to milling and profiling machines	Alfred Herbert	, England
		Improvements in or relating to milling and profiling machines	Percy Venables Vernon	, England
190,125,561	Dec. 13, 1902	Improvements in or Relating to Variable Speed Driving Mechanism	Alfred Herbert	, England	Abstract: Relates to variablespeed gearing particularly applicable for milling and similar machines. The driving-shaft E has three wheels A of different sizes keyed to it ; these gear with loose wheels B on a shaft F which also carries a set of fixed wheels C in gear with loose wheels D on the shaft F<1>. Any one of the loose wheels of either set may be fixed to its shaft by means of a rising and falling key G which is pivoted at G<2> in a sleeve G<1>, and is pressed into action at its engaging end G<4> by means of a spring G<3> which presses on its tail. The sleeves are movable along their shafts, to bring the keys opposite the wheels to be secured, by means of a rotating cam I having a separate cam-groove for each sleeve, the connection being effected by means of pivoted levers which engage in the cam-grooves and in grooves in the sleeves. The cam is rotated by means of a hand-wheel P provided with a scale and pointer and with a locking-pin. The camgrooves are arranged to engage each wheel of the upper set in turn, first with the first wheel of the lower set in action, then with the second and third wheels in action. Each train may consist of a larger number of wheels, or additional trains may be used, with an additional cam shaft geared to the first, so that one handle still suffices for effecting all the changes. The upper shaft is driven by a pulley K fitted with an epicyclic reversing-gear comprising a double planet pinion N, a stationary wheel N', and a loose wheel N<2>; the shaft is movable axially, and is provided with keys E<2> which may be caused to engage with the pulley boss for direct driving, or with the pinion N<2> for reversing.
		Improvements in or Relating to Variable Speed Driving Mechanism	Percy Venables Vernon	, England
190,204,033	Feb. 17, 1903	Improvements in or Relating to Die Heads or Holders for Screw Cutting Machines	Alfred Herbert	, England	Abstract: This invention relates to die heads or holders for screw cutting machines and more particularly to self-opening die heads, the chief object of the invention being to provide a die head which, in addition to being self-opening, is adjustable for screws of slightly larger or smaller diameter than the standard size and in which the adjustments of the parts can be made without the use of keys or spanners.
		Improvements in or Relating to Die Heads or Holders for Screw Cutting Machines	Percy Venables Vernon	, England
190,322,474	Aug. 18, 1904	Improvements in Headstocks for Lathes	Alfred Herbert	, England	A headstock for use with tools of a high cutting speed is constructed with a two-speed drive through gearing, the usual direct belt drive being dispensed with, and the cone speed increased so that the speeds usually obtained by the direct drive are obtained by the quicker of the two speeds, the other speed corresponding to the usual back-gear. The cone pulley and the two wheels c, d are secured on a sleeve loose on the lathe spindle, the wheels gearing with a pair e, f which can be separately clutched to the back-shaft g on which is a pinion gearing with a wheel on the lathe spindle. A suitable form of friction clutch for each wheel consists of an internal split ring n, Fig. 3, which is expanded against a flange on the wheel by the radial movement of a wedge n<2>, produced by the longitudinal movement of a rod m in the backshaft. The rod has a bowl m<2> which may engage the bevelled end of either of the wedges, the rod being pinned to a ring l<3>, which is slid by a sleeve l<1> carrying a rack l, Fig. 5, gearing with. a pinion k rotated by a segment on a hand-shaft j<1>.
		Improvements in Headstocks for Lathes	Percy Venables Vernon	, England
190,717,055	Jul. 28, 1905	Machine and Other Tools, Shafting &c.	Alfred Herbert	, England
		Machine and Other Tools, Shafting &c.	Percy Venables Vernon	, England
190,612,485	May. 16, 1907	Improvements in or Relating to Machines for Grinding Tools, Milling Cutters, Reamers, and the Like	Alfred Herbert	, England	Abstract: The speed ratios of the movements of the two parts of a compound slide in a machine for grinding tools, milling-cutters, reamers, taps, saws, worm hobs, counterbores, &c. are made interchangeable in order to reduce the necessary adjustment of the work, so that in operating upon two faces at an angle to one another, what is the quicker or longitudinal movement to feed the work across the grinder in operating upon one face becomes the slower or transverse movement to adjust the depth of the cut in operating on the other face, and vice versa. The variable gear may only be used to obtain different speeds in one direction. Each portion of the slide is operated by a pinion gearing into a rack on the slide, the pinion being either driven directly from the hand-wheel K, or more slowly from another hand-wheel through a worm M and worm-wheel L, or other gearing, which may be clutched to the shaft J. The worm-wheel L is mounted on a sleeve L<1> loose on the shaft and is clutched against a conical shoulder P on the shaft by a nut S, working on the screwed end J<1> of the spindle which can slide through the hand-wheel K for the purpose: The angular motion of the swiveling plate carrying the work is reduced by this device.
		Improvements in or Relating to Machines for Grinding Tools, Milling Cutters, Reamers, and the Like	Percy Venables Vernon	, England
190,622,392	Jun. 06, 1907	Improvements in or relating to guards for the cutters of milling machines	Alfred Herbert	, England
		Improvements in or relating to guards for the cutters of milling machines	Isaac Round	, England
190,706,187	Jan. 09, 1908	Improvements in or Relating to Drilling Machines.	Alfred Herbert	, England
		Improvements in or Relating to Drilling Machines.	Percy Venables	, England
190,715,645	Feb. 13, 1908	Improvements in or relating to knee slides for milling machines	Alfred Herbert	, England
		Improvements in or relating to knee slides for milling machines	Percy Venables Vernon	, England
190,706,911	Mar. 23, 1908	Improvements in Universal and Similar Chucks.	Alfred Herbert	, England	Abstract: The scroll D of a universal lathe chuck has its grooves composed of circular arcs D<2>, one for each jaw. The jaws G are adjustably fixed on slides E, the adjacent surfaces H being serrated. Sector plates J serve as guides for the slides which carry pivoted blocks F engaging the scroll grooves. The scroll is rotated by means of pinions B<2>.
		Improvements in Universal and Similar Chucks.	Percy Venables Vernon	, England
190,806,343	May. 22, 1908	Improvements in Chucks	Alfred Herbert	, England
		Improvements in Chucks	Percy Venables Vernon	, England
190,726,970	Nov. 26, 1908	Improvements in the feed mechanism of milling machines and the like	Alfred Herbert	, England
		Improvements in the feed mechanism of milling machines and the like	Percy Venables Vernon	, England
191,109,416	Dec. 30, 1911	Improvements in apparatus for grinding milling cutters	Alfred Herbert	, England
		Improvements in apparatus for grinding milling cutters	Thomas Allen	, England
140,722	Apr. 01, 1920	Improvements in Built-up Cutters for Use in Milling Machines or Other Machine Tools	Alfred Herbert	, England	Abstract: Milling-cutters; boring-bars.-Cutters for use in milling, and for boring-bars, &c. have one face of each of the inserted' blades flat and serrated to engage a corresponding face on a locking wedge. As applied to a surfacing cutter, the inserted blades A, Figs. 1 and 2, are made from stock of the section shown in Fig. 3, and are secured in inclined holes in the body that is correspondingly coned at B<2>. The serrated flat face A<2> is engaged' by a corresponding face C<3> on a conical wedge secured by a screw D. In a modification, Fig. 4. flat blades are secured in transverse slots milled right across the body.
		Improvements in Built-up Cutters for Use in Milling Machines or Other Machine Tools	Arthur Harold Lloyd	, England
170,648	Oct. 24, 1921	Improvements in Work Tables and Work Chucking Devices for Milling or for Like Machine Tools	Alfred Herbert	, England	Abstract: A circular table A, Fig. 2, fitted with two work-holders disposed at 180 , is mounted on the main table B<2> of a milling-machine and is rotated during the idle return thereof by ratchet mechanism A<30> driven through gearing from the shaft O, which is also mounted in the main table and is rotated by the engagement of a fixed roller D<4>, Fig. 1, with the helical groove D<3>. The table A<3> is locked during the cutting traverse by a spring-pressed bolt A<5>, the latter being disengaged prior to indexing, by rack-and pinion gearing, from the quadrant lever A<12>, which may be operated by hand, or automatically by an adjustable stop A<15> op the fixed bracket C<2>. The locking pressure on the pad A<16> which additionally clamps the rotary table in the indexed position is applied through an eccentric spindle A<18>, Fig. 4, by a spring-pressed rod A<19>, and is released by a hand lever A<32> or by the engagement of an adjustable collar A<22> with the bracket C<2>. Change-feed and reverse gears are provided for the main table B<2>.
		Improvements in Work Tables and Work Chucking Devices for Milling or for Like Machine Tools	Percy Venables Vernon	, England
179,053	May. 04, 1922	Improvements in Machines for Cutting Metals and the Like	Alfred Herbert	, England	Abstract: Shaping curved surfaces; attachments for shaping; tools. Relates to the process of slotting and recessing described in Specification 179,052, and consists in machines for carrying out the process. Figs. 1 and 4 show an attachment applied to the framing of an ordinary milling- machine, but the operative parts may be fitted to other machines or may be carried by a framing to form an independent machine. The tool E is carried by a shank E<2>, which is given a vertical reciprocation by a slide D and an horizontal reciprocation by a slide C on which the slide D moves. The slides are actuated by a crank pin F<2>, which is adjustable in the manner shown. The pin F<2> is carried by a rod passing eccentrically through the driving-shaft F. After slackening the nut F<6> the pin can be adjusted and secured by drawing the conical head F<4> into the corresponding recess in the shaft F.by screwing up the nut F<6>. The shaft F is driven by a bevel-wheel H<4> gearing with a similar wheel on the machine spindle B<3>. The gear described is contained in a casing A which carries a flange A<6> secured to the guides B<5> for the work-table, and is clamped to the tool-stay B<2>. The work is carried by the table B<6>, to which may be given a vertical reciprocation and horizontal reciprocations in two directions at right-angles. A modification is described in which the two slides are actuated by two cranks, geared together. Further, the work-table or the slides may be put at any desired inclination to suit the work.
		Improvements in Machines for Cutting Metals and the Like	Percy Venables Vernon	, England
190,605	Dec. 28, 1922	A new or improved speed reducing device for use on drilling machines, lathes, or other machine tools	Alfred Herbert	, England
		A new or improved speed reducing device for use on drilling machines, lathes, or other machine tools	Percy Venables Vernon	, England
261,591	Nov. 25, 1926	Improvements in built-up cutters for milling and other machine tools	Alfred Herbert	, England
		Improvements in built-up cutters for milling and other machine tools	Arthur Harold Lloyd	, England
296,534	Sep. 06, 1928	Improvements in braces for milling machine tools	Alfred Herbert	, England
		Improvements in braces for milling machine tools	Percy Venables Vernon	, England
393,380	Jun. 08, 1933	Milling machines and like machine tools	Alfred Herbert	, England
		Milling machines and like machine tools	Arthur Harold Lloyd	, England
		Milling machines and like machine tools	Charles Harris Jinman	, England
395,978	Jul. 27, 1933	Milling and like machine tools	Alfred Herbert	, England
		Milling and like machine tools	Arthur Harold Lloyd	, England
417,686	Oct. 10, 1934	Milling machines and like machine tools	Alfred Herbert	, England
		Milling machines and like machine tools	Arthur Harold Lloyd	, England
		Milling machines and like machine tools	Charles Harris Jinman	, England
456,128	Nov. 03, 1936	Improvements relating to the hardening of metal surfaces	Herbert Howarth Beeny	, England	"This invention relates to the production of cast-iron articles, such as rails, having a hardened surface, the hardening being effected by a local heating of the surface, by means of a burner, whereafter the heated part of the surface is immediately cooled." The assignee firm, Alfred Herbert, Ltd., made lathe rails using a centrifugal casting process, and they used this flame-hardening process to harden the rail surface. The patent also mentions hardening sand-cast lathe beds. A 1957 catalog from the American lathe maker Monarch Machine Tool Co. lists this British patent.
		Improvements relating to the hardening of metal surfaces	Arthur Harold Lloyd	, England
460,231	Jan. 25, 1937	Milling and like machine-tools	Alfred Herbert	, England
		Milling and like machine-tools	Arthur Harold Lloyd	, England
		Milling and like machine-tools	Gordon William Maclaren	, England
463,656	Apr. 05, 1937	Milling machines and similar machine-tools such as employ slip gears in the drive to the spindle	Alfred Herbert	, England
		Milling machines and similar machine-tools such as employ slip gears in the drive to the spindle	Arthur Harold Lloyd	, England
463,705	Apr. 05, 1937	Machine-tools such as employ slip gears	Alfred Herbert	, England
		Machine-tools such as employ slip gears	Arthur Harold Lloyd	, England
508,269	Jun. 28, 1939	Means for eliminating backlash in feed screws particularly of milling machine tables	Arthur Harold Lloyd	, England
		Means for eliminating backlash in feed screws particularly of milling machine tables	George Edmund Leech	, England
624,263	Jun. 01, 1949	Improvements concerning the feeds of milling or other machine-tools	Leslie Johns Hugo	, England
682,617	Nov. 12, 1952	Control systems for electrically-driven milling and like machine tools	Lloyd Arthur Harold	, England
		Control systems for electrically-driven milling and like machine tools	Jinman Charles Harris	, England
1,209,601	Oct. 21, 1970	Machine tool with automatic tool change facilities	Shotter Douglas Ralph	, England