US63658A - bobbins - Google Patents

Description

@einen taten gstellt ffire.

WARNENYSHUMARD, ARTHUR. LYON, ANni'Jnsrnn N. noBBiNsy or oosninN,

onto.

letters Pfian No. 63,658, If/ter? April 9, i867;

IMPROVEMENT IN SAW-MLLS.

' lO WHOM IT MAYXCONCERN:

Be it known that we, WARREN Snennnn, An'rn'un LYON, and JASPER N. ltonnrxs, all of Goshen, in the county of Clermont, and Statel of Ohio, have invented a new and useful Scroll-Saw; and we hereby declare the following to be a full, clear, and exact description thereof', reference being; had to the accompanying. drawings, making a part of this specification.

This is an improvement in the class of .scroll orjig-saws adapted for getting out wheel fellocs, and other circular objects; and our invention relates 'more particularly to au arrangement ofnneehanism by whichthe upper strole of the sash is inadc effective for feeding the stuff.

' Figure l is a perspective view of a machine embodying our invention.

Figure 2 is a transverse section thereof. i

A is a bench, to which pivoted a rest, B, having a segmental head, C, upon which the stuff rests. The rest B is slottcthvb, for thc traverse of a bolt, D, having a nut, E, by which a jaw, F, is held to any desired distance from the centre or pivot-bolt. The parts l) E F constitute a clamp for holding the stuif down firmly upon the rest during the operation of sawing. The rest B is armed with a segmental ratchet, G, by which the rest is intermittently advanced by a'n instrumentality to be presently explained, H is a customary sash, armed with a seroll-sa\v, L'vreciprocated by pitman J in the usual way, and guided in a. frame, K, from whose upper portion depends an arm, L, which, extending obliquely forward and resting by its extremity on the stuit, eectually prevents any retrograde motion thereof.

The rest is fed intermittently forward by the following eontrivu-ncc: Mis a bar, whose upper end is pivoted to the upper part of the sash, and whose lower end has a screw-threaded aperture which engages upon a screw, N, whose point is secured in a socket, O, in` the lower part of the sash', and by wliiclrthebar can be set more or less oblique from the path of the sash. Grraspi-ng,` the bar M is a lever, P, provided with n pawl, Q., havingV a spring, R, that holds said pawl constantly in gearwith the segmental rack G. The effect of this arrange- V lment is that on the descentvof'cffcctive stroke of thc sash to retract the pawl, and on the ascent, or non-effective stroke of the sash, to advance thepawl, and the rack-rcst also` By settingtho bar outward a more rapid feed is obtained, and the reverse by setting it in a morc vvertical position. The saine machine is made applicable for any size of felloc by applying a rest of appropriate dimens-ions. i

We claim herein as new, and of our inventionl The arrangement of oblique Aadjustable bar M on the sash H, in combination with the screw.N, lever P,-

pawl Q, and segmental rack Gr', for the automat-ic feed of the restf, in the manner sot forth.

In testimony of which invention we heren-nto set our hand.

WARREN SHUMARI), ARTHUR LYON, Witnesses.: JASPER N. ROBBINS.

GEO. H. KNIGHT, WM. Yos'r.

Images