Manufacturers Index - Walker Bros.
Walker Bros.
Minneapolis, MN; Philadelphia, PA, U.S.A.
Manufacturer Class:
Wood Working Machinery & Metal Working Machinery
This page contains information on patents issued to this manufacturer.
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117,020
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Jul. 11, 1871
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Improvement in paneling-machines
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Dwight F. Walker |
Minneapolis, MN |
The "Decisions of the Commissioner of Patents" for 1871 contains a decision regarding a matter of interference between the patent applications of Henry L. Rockey & James H. Woolsey and Dwight F. Walker, for panel machines. Walker was a "practical machinist and pattern-maker" and a "vendor of machines" used by the likes of Rockey & Woolsey, a "manufacturer of panels and other wood-work". Walker claimed to have made his first panel machine in 1868; the cutterheads used a draw-cut, i.e., the knives, affixed to a cutterhead akin to a shaper head, were set at an angle.After a successful test of such a cutterhead, Walker proposed making such a head to Rockey. Rockey instead proposed that Walker make a knife that embodied the draw-cut principle but in a conventional cutterhead. The two men discussed what was involved, Walker made some knives, and Rockey tested them and was pleased with the results. Rockey suggested making a machine that raised both sides of a panel at once; Walker subsequently made such a machine but sold it to another customer. Sometime after that, Walker applied for a patent, and then Rockey and Woolsey also applied for a patent. The decision of the commissioner awarded priority to Walker, "and both case are remanded to the examiner for further examination, in the light of the testimony of this case, with the suggestion that he will probably find that neither application contains anything that is patentable." That decision was handed down on 1871-06-07 and this patent was awarded only 34 days later, which shows that the examiner did find that the machine was patentable. |
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120,405
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Oct. 31, 1871
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Improvement in panel-raising machines
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Dwight F. Walker |
Minneapolis, MN |
This machine was written up in the 1871-10-28 issue of "Scientific American". |
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139,284
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May. 27, 1873
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Improvement in scroll-saws
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Edward A. Walker |
Minneapolis, MN |
This scroll saw was featured in a short illustrated article in the 1877-10-13 Scientific American, which noted that it was manufactured by Walker Brothers. |
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454,958
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Jun. 30, 1891
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Belt-Shifter for Planing-Machines
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Edward A. Walker |
Philadelphia, PA |
Francis T. Chambers - patent attorney
"My invention relates to belt-shifting devices listed on the class of planing-machines in which the carriage traveling over the bed of the machine is used to hold the tool and carry it over the face of a stationary work-bed; and the object of my invention is to provide improved means for enabling the operative to start, stop, and reverse the machine at will and from the position which he should occupy in watching the work." |
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454,959
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Jun. 30, 1891
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Feed-Screw and Nut
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Edward A. Walker |
Philadelphia, PA |
Francis T. Chambers - patent attorney
My invention relates to feed-screws and nuts used in machines as planers to cause the table or tool-holder to travel over the frame; and my object is to so construct and arrange such devices that they shall be stronger and better fitted and held together than in the usual constructions. My invention relates particularly to the screw-feeds, in which, the feed-screw lies in a horizontal plane, and to prevent sagging is supported upon a rest or rests beneath it. With screws so supported it has heretofore been customary to use a yoke-like nut, which straddled the upper part of the screw and engaged only its top and sides, and such a device is obviously less strong and more liable to displacement and uneven wear than a nut which embraces the whole circumference of the screw. The chief feature of my device consists in using with the feed-screw a nut, the outer thickness only of which is cut away in part to clear the face of the screw-threads, while the threads of the nut are continuous and uninterrupted. Where the screw lies upon rests the nut is thus cut away to clear said rests, and at the same time it embraces the whole circumference of the screw and is held firmly in place thereon.
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454,960
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Jun. 30, 1891
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Frictional Feed-Clutch
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Edward A. Walker |
Philadelphia, PA |
Francis T. Chambers - patent attorney
My invention relates to feed-clutches used for feeding the tools in machines such as planers, and it is especially, although not exclusively, adapted for use with planing-machines in which the tool is carried on a carriage-which moves to an fro upon the bed of the machine while the work is held stationary beneath it. The object of my invention is to provide an improved frictional feed-clutch which will rotate the main driving-shaft of the feed mechanism alternately in opposite directions, releasing it promptly at the proper times and relieving the driving pressure of the clutch.
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472,745
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Apr. 12, 1892
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Belt-Shifter
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Edward A. Walker |
Philadelphia, PA |
Francis T. Chambers - patent attorney
My invention relates to devices used for shifting belts from fast to loose pulleys, and vice versa, and has for its object the improvement of such devices, particularly as applied to the class of planing-machines in which the work is held stationary and the cutting-tool carried on a reciprocating wheel actuated by the belts to which the shifting device is applied.
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475,004
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May. 17, 1892
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Planing-Machine
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Edward A. Walker |
Philadelphia, PA |
Francis T. Chambers - patent attorney
My present invention relates to the mechanisms which control the feed or tool and work presenting movements of planing-machines, and it is especially adapted for use with, metal-planing machines, in which the tool is driven by being attached to a carriage that is situated upon, guided by, and moved to and fro along the bed of the machine while the work is held stationary beneath it. The chief object of my said invention is to provide in the mechanism which automatically transmits feed motions to the tool-holding part of such a planing-machine's carriage an improved motional clutch operative to vibrate the main driving-shaft of such planer's feed mechanism in the manner of a rock-shaft, said shaft being further limited in the motions thus imparted to it to a definite angular throw by means of abutting devices ancillary to the clutch aforesaid. Further objects are to contrive said improved clutch mechanism in such manner that it may be actuated in direct connection with the to and fro movements of the planer's carriage along its bed, to associate the mechanism controlling the reciprocations of such a planer's carriage with mechanism secured to the bed of the planer and adapted to impart movement to the planer's feed mechanism upon the reciprocation of the carriage aforesaid by a direct and simple gearing, and by this means to supplement and give mutual support to parts which would otherwise have to be considerably heavier, together with such further objects as will be apparent from this specification taken as a whole.
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510,742
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Dec. 12, 1893
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Paper holder and cutters
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Dwight F. Walker |
Philadelphia, PA |
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541,192
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Jun. 18, 1895
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Paper-roll holder
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Dwight F. Walker |
Philadelphia, PA |
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544,016
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Aug. 06, 1895
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Attachment for paper-holding stands
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Dwight F. Walker |
Philadelphia, PA |
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