US85102A - Improved leather-cutting machine - Google Patents

Description

i mimi tant. @met @tf1 i s y Sl-ME-ON' H. KING, 'OF TUNB Rl DGE, VERMONT. I

Lette/rs Patent No. 85,102, dated December 22, 1868.

INIPROvED LEATHER-CUTTING- MACHINE.

To all whom it 'ma/y concern:

Be it known that I, SIMEON H. KING, of Tunbridge, in the county of Orange, in the State ofVermont, have invented certain new and useful Improvements in Leather-Cutting Machines 5 and I. do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon..

' This invention relates to a machine for scariing or v bevelling the edges of strips or sheets of leather of any desired width, so that their edges may be joined together, and the joined parts be of equal thickness with the other portions, and it may also be used for bevelling the edges of portions of a harness, or for any other Purpose- In the drawings- Figure 1 is a perspective view ofthe machine, showing it in the act of bevelling or scariing' both edges ofa strip of leather.

Figure 2 is a sectional elevation on the line .m :n of

.furnished with legs for its support.

B is a swingingtable, pivoted to the ame or bed A at a, as shown in iig. 4, and is 'so arranged, With' ref erence to the knife, that it may be swung to the one side or the other, so that only one edge or side of the strip of leather which is passing throughy it shall be scarfed or bevelled, should such a result be desirable. It will also be apparent that, if desired, one edge of the leather may be bevelled to a greater extent than' the other by moving the adjustable table to the proper position, and securing it there by the'thumb-screw N,

shown in fig. 3, which passes up through the bed and venters a thread eut in said table forthat purpose.

C is the knife, which is triangular in form, having cutting-edges upon two sides ofthe triangle, said edges terminating in a sharp point at its iront, and its rear end having formed upon it ears vor projections for receiving the upper ends of the shaft's'to which the gearwheels D-Dare attached, and which are used for elevating and depressing said knife.

D D are gear-wheels, which are attached. to the shafts 0 O, which shafts pass up through the bed ofthe machine, andreceive upon their upper ends the ears formed upon the rear end of the knife, and to which it is secured by nutsl P.

D is a third gear-wh eel, which is arranged upon the under-side of the bed A, as are also the wheels D D,

which bear such relation to each other that when the wheel D is rotated by the crank L, which is attached thereto, both ofthe wheels D D will be simultaneously rotated, and thus the knife (l will be raised or levelled, as above described.

E is a spring, which is attached to the tumblingshaft G, and which is regulated by the thumb-screw M, the object of this spring heilig to keep the leather down firmly upon the table B, as it is drawn against the knife.

F F are standards, secured to the bedA, and are for the purpose of supporting the shaftG, which has journals formed upon its ends for passing through holes formed in said standards.

Gis a tumbling-shaft, having journals upon its ends,

as above described, while its central portion is fiat upon its upper surface, and is of sufficient thickness to receive and support the spring which is secured thereto by means of a flat bar of iron, which has screws passing through its outer ends and into the shaftG, in

`such a manner that, as the spring is placed between the bar and the flattened portion of the shaft, and the screws turned down upon the bar, the spring will be secured firmly with reference to said shaft.

His a lever attached to one end of the shaft G, outside of the standard F, through which it projects for that purpose, the object of said lever being to partially rotate the shaft G, by which means the. spring E is 'released from bearing upon 'the leather, and is elevated out of the way, so that the stlip which has been scarfed or bevelled may be readily removed from theinachine, and another placed therein.

I is a notched-bar, attached to the bed-plate A, and

is so arranged with reference to the handle H, that when the spring Ev is pressed down with sucient force upon` the leather, said handle will engage with one of the notches-upon said bar, and retainsaid spring in its position.

K is a bar, secured to the under side of the bed A by bolts in the usual manner, and below which it is held by large ferrules thereon, at a distance sufcient to receive between it and said bed the gear-Wheels D D, for whose lower journals it forms the'bearings.

L is a crank, attached to the gear-wheels D', and is for the purpose of rotating said wheel, for the purpose of raising andlowering the knife, as above described.

M is the thumb-screw which passes through the. har whichis attached to the tumbling-shaft, for the purpose of regulating the tension of the spring E.

N is the thumb-screw which passes up through the Vbed-plate A, for the purpose of holding the table in position.

O O are studs or shafts passing through the bedplate gA, to the upper ends of which the knife C is attached bythe nuts P P. Those portiousof the shafts O which are within the bed-plate are such as to t snugly therein, and yet they are allowed to revolve freely, while upon their lower portions vscrew-threads :1re cut, whieh threztded portion pztsses through threads formed in the holes oi'A the gear-wheels, so that :is said wheels are rotated, the shafts pass up or down7 and carry with them the knife. y

IP l 'are nuts upon the upper ends of' Vthe shafts O, i'or the purpose of screwing the knife thereto.

Having thus fully described my invention,

`What I ela-iin, and desire to secure by Letters Pat ent from the United States, is-

1. The combination of the swinging,r table B, the knife C, the gear-wheels I) D, mid the shafts O O',

substantially as described,- and for the purpose set V forth.

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