US93710A - Improvement in machine for forming flow-handles - Google Patents

Description

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IMIJRovEMENT IN MACHINE Fon I'oRM'ING PLoWfHAN'DLIz's.

The Schedule referre'to in these Letters Patent and making part 0f the same.

To all whom ttnag/ concern:

Be it known that I, GEORGE V. GRIFFITH, of Fort lVayne, in the county of Allen, and State of Indiana, have invented certain new and useful Improvements in Machinery for Forming Plow-Handles; and I do 4 hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, aud to the letters of reference marked thereon, in which like letters refers to like parts in the different iigures;

To enable others skilled n thel arts to makey and use my invention, I will proceed to describe its con-V struction and operation.

Figure l represents a plan View. Figiue 2 represents a side elevation. This invention has for its object to form plowhandles into proper shape previous to bending them and It consists in the combination of a horizontal reciprocating frame, on which are placed the clamps that` hold the plow-handles, with a vertically-reciprocating frame, in such manner, that by the operation of the latter, the plow-handle may be raised up toor withdrawn from under thefcutterhead at any moment, in order to arrest the forming-process at any desired point. v

A represents a clamping-apparatus, which is con-v structed as follows:

a represents a rod, having a right and left-hand screw, which passes through and takes into nuts having a kcorrespoinling right and left-hand female screw. Y

These nuts are so constructed that their upper ends form a vise orf clamp, the jaws of which, when the rod 'a is'rotated, move parallel to' any desired extent.

It is clear, then, that when said jaws are forced together with sutlcient force, having-'between them" the handle to be operated upon, they will firmly hold said handle in the desired position, will be readily understood. b

These clamps are so placed that when scrcwedinto close contact, their touchingsurfaces shall be in the vertical`plane passing longitudinally through the centre of the-cutters, and when they are screwed up against the sides of the plow-handle, the longitudinal centre ofthe latter shall be in said plane.

By these means the same amount of material is cut from each side of the plow-handle.

The rear set of jaws is in everyrespect the same.

as the front ones, with the exception of being much shorter.

They serve only to hold or steady the handle in place, while the front clamps, being longenhave a wide bearing-surface on the handle, and thus steady it in position, as will be well understood.

The rear. clamps, being shorter than the others, the cutters are enabled to pass without intelference.

These clamps are secured to a reciprocating holder,

which is confined in suitable ways, and are operatedv by means of lever and connecting-rod l), as will be readilyfnnderstood.

B-representsa sliding frame, -which is confined in suitable ways, C C, so as to enable it to reciprocate freely. I

-K'Io the upper edge of this frame B is secured, in ways, as before described, the holder C, in such a manner that said holder reciprocates horizontally while frame' B reciprocatcs vertically.

a represents a stop, which is placed in a-position which gauges the cutting of the handle.

g represents a stop, which determines the movement of the holder C in its backward movement.

h represents a stop, which terminates the forward movement of said holder C while the forming is being done. .Y Y

i represents la stop, which intercepts the forward movement of said holder when the handle has been formed, and asit is bronght forward to `be removed from the apparatus'.

I) represents the cutter-head, which is provided with suitably shaped cutters to form the handle.

v K jK represent stops, which are placed on frame B in such a manner as to intercept the forward movement of said frame by coming in contact with Said frame Il is operated by a level.' and connectingrod, on, said lever `heilig secured to the stationary frame.

'n represents a catch which `serves as a gauge, as will be more Afully explained -in the specification hereafter.

Having thus fully described the parts of the machine, I will now proceed to describe its' construction and operation.

The blank handle is insertedvbetween the jaws, and is by them securely clamped. and centred, as before described, in the position seen in the drawings.

Then the lever m is acted upon and forces thc wood Aagainst the revolvingcutters until said lever bears aga-inst the' catch n, where it iseallowed to rest, and lever b is then acted upon, and forces the holder C forward. In so doing, the handle is cut in the form seen in diagram 3 in the drawings.

,The holder C 'is then reversed and carried back to. Athe point where it started, and lever m is again forced v downward until the handle is raised upA in contact with the knives or cutters, which take another course out.

And then, while the handles are held in contact with the cutters,- the holder G is forced again forward `until it comes in contact withthe stop d, which interferes with the forward movement and stops the han- What I claim als new, and desire to secure by Let tcrs lutcnt, ism f The verbicallyreciprocuting frame B, combined with the horizontullyreciprocutng framcG, und constructed and operating substantially in the manner und for the purpose set forth.

GEO. T. GRIFFITH. Witnesses:

H. F. WILLSON, FRED. l. ZQLLARS.

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