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Title: |
1892 Article-Horner Machine Co., Automatic Shear Blade & Knife Grinder |
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Source: |
Age of Steel, V72, 16 Jul., 1892, pg. 03 |
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Insert Date: |
10/24/2020 1:47:27 PM |
Automatic Shear Blade and Knife Grinder.
An interesting and improved tool is shown in this connection, known as a 30" automatic knife grinder, for grinding metal cutting shear blades, paper or planer knives, or any work of that character. It has a capacity to grind knives from 30" to 50" long, using either the cup wheel as illustrated in the cut, or a 26x1½" peripheral wheel.
They are made very heavy and strong, and designed to do better work than is usually produced on this type of machine.
The driving mechanism is a double train of spur gearing and rack, all cut from the solid, the belt shifting and automatic feed being done by a very simple system of levers and connections, and is positive at all times.
The bed is set on large base, to be used as a closet, the rear leg supporting the wheel head bracket being used as a reservoir for water, in which the rotary pump is placed; the latter being an improved device, is very simple and cannot get out of order.
The spindle is large and runs in long self-oiling boxes, the cup wheel being held in an improved chuck, which allows of a greater speed of wheel and increased efficiency, as well as insuring safety from bursting.
The carriages are made either as shown, with fixed knife bar, or with three T slots, so that the knife bar can be removed, and other fixtures used for grinding plain surfaces, as scale beams, slide bars, or like work, thus making the machine do a variety of work.
An interesting feature to this machine is, that no rubber tubing is used in connection with the water supply. Metal pipes are used through which an abundant supply of water is furnished by an improved rotary pump. Where the peripheral wheel is used, an ingenious and highly successful arrangement is employed, by means of which the water is applied to the wheel just at the point where the grinding is done, thus preventing the drawing of the temper of the knife.
The spindle which is 2¼-in diameter, runs in self-oiling boxes, each 8" long. The driving mechanism is very simple, and the gearing is a cut from the solid. Automatic feed of wheel to work to two-thousandths of an inch at each forward movement of carriage. The shipping mechanism is very simple and is positive.
The machine stands firmly on the floor and is made in the best manner throughout. Further information regarding it may be had of the manufacturer, the Horner Machine Company, Holyoke, Mass. |
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1892 Horner Machine Co., Automatic Shear Blade & Knife Grinder
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