US299190A - Reuben henry andrews - Google Patents

Description

(No Model.)

R. H. ANDREWS.

WOOD WORKING MACHINE.

Qaented May 27, 1884.

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REUBEN HENRY ANDREVS, OF VASHINGTON, DISTRIOT OF OOLUMBIA.

WOD=WORKlNG MACHINE.

SPECIFICA'I'ION forming part of Letters Patent No. 299,190, datel May 27, 1884.

Application filcd October 2, 1883. (No model.)

To all witam it may conccrn:

Be it known that I, REUBEN I-I. ANDREWs, a citizen of the United States, residing at Washington, in the District of Columbia, have invented certain new and useful Iniprovenients in Vood-/Vorking Machines, of which the following is a specification, reference being had therein to the acconipanying drawings.

This invention relat-es to Wood-working niachines, and is specially intended to bc applied to a machine of the character shown in my Patent No. 250,181, of November 29, 1881, which I call my complete Wood-working inachine The object of the present invention is to improve the driving` inechanisni for the shaping or friezing tool of such a nxachine as is above indicated.

The particular' details of construction which constitutc my present invention will be hereinafter pointed out in the claims.

In the drawings, Figure l is a plan, partly in section, showing` such parts of the driving inechanisni as constitute my present improvement, the table of the machine being` rcnioved. Fig. 2 is an end view of the machine, showing only such parts of the machine as illustrate niy present invention. Fig. 3 is a side View of the shipper-lever and a section of the bevel-pulley mounted thereon. Fig. 4 is a plan view of bell-crank lever. Fig. 5 is a detail showing` the arin which carries idler-pulley i.

A represents the frame of the machine; G, the shaping-cutter niounted on rotating shaft G', as in niy patent referred to.

a is a driving-shaft, provided with two bevcl friction-pulleys, Z) c, as shown.

A bevcl friction-pulley, d, is journaled on a standard, (1/, which is carried by a shipperlever, c. This lever is pivoted at e' to a crossbar, A', of the frame. The end c2 of the lever c is pivoted to an arin, f', of bell-crank lever f, which is provided with a slot, fz, for the reception of the projeotion ei* of lever e The bell-crank lever f is pivoted at x to a crossbar, A2, of the frame. Thus the movenient of bell-crank lever f from the position shown in full lines to the position shown in dotted lines in Fig. l will throw the pulley d out of contact with pulley b, and if the lever is moved far enough said pulley d will be thrown into contact with pulley c and driven in reverse direction, or in intermediate position between Z) and c the pulley d will be at rest.

The belt g leads from pulley d around the guide or idler pulleys h z' to the pulley g', so as to drive said pulley and its shaft and shaping-cutter. The relation of pulley d to the guide-pulleys or idlers h 'i is such that the tension of the belt g will be substantially the same,whichever one of pulleys b c maybe en.- gaged by said pulley (Z. The idler-pulley z, which serves to tighten belt g, is carried on a spindle, z, on arin K. Said arni K has a sleeve which embraces the stationary shaft h', and is secured thereto by set-sorew. Thus the arin'K may be swung on shaft h'in the direction of the arrow, and the belt thereby be tightened.

The bevcl friction-pulleys b c d may be faced with wood, leather, or other suitable materlal.

The end of bell-crank lever f is so located as to be within convenient reach of the foot of the operator.

The cutter G is of the kind adapted to cut whichever direction its shaft is driven.

I clain1- 1. The combination, with a shaping-cutter and the driving-belt thereof, of bevcl frictlonpulleys, as Z) c, a bevcl friction-pulley arranged, as described, between the two, so as to be brought in contact with either, a shipper-lever which carries said intermediate bevel-pulley, and a lever for Operating sald shipper-lever, substantially as desoribed.

2. The bell-crank lever pivoted to the frarne and to the shipper-lever, as shown, the shlpper-lever carrying the friction driving-pulley, as described, the friction-pulleys arranged to be engaged by said driving-pnlley, the guidepulleys arranged as shown, the belt, and the cutter-carrying shaft and pulley, all arranged and combined in a Wood-working machine of the Character described, as andfor the purposes set forth.

3. The combination, with the cutter driving-pulley, of the friction driving-pulley and its shifting` inechanisni, substantially as described, the idler h, mounted on shaft h', and the idler i, inounted on a spindle on arm K, said arni being` adjustably secured to shaft h', substantially as shown and set forth.

In testimony whereof I affix niy signature in presence of two witnesses.

REUBEN HENRY ANDREWS. W'itnesses:

A. M. KANoUsn, I). S. Ounriss.

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