US242087A - Machine for making laps on belting - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.'

G. H. WESTON. Machine for Making Laps, on Belting. No. 242,087. Patented May 24,1881.

- (No Model.) wheeze-sheet U 0.. H. WESTON.

Machine for Making Laps on Belting. No. 242,087. PatentedMay 24,1881.

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- UNITED STATES PATENT OFFICE.

CHARLES H. WESTON, OF YARMOUTH, MAINE.

MACHINE FOR MAKING LAPS ON BELTING.

SPECIFICATION formingpart of Letters Patent No. 242,087 dated May 24, 1881.

' Application filed March 28,1881. (N0 model.)

.To all whom it may concern:

Be it known that I, CHARLES H. WESTON, a citizen of the United States, residing at Yarmouth, in the county of Cumberland and State of Maine, have invented certain new and useful Improvementsin Machines forMaking Laps in Leather Belting and other Material; and I for making the'beveled portion upon either end of leather or other belting; and the novelty consists in the construction and arrangement of parts, as will be more fully hereinafter set forth, and specifically pointed out in the claims.

The object of the invention is to bevel each end of a strap or body of leather, upon oppoe site sides in such a manner that the beveled portions, when placed together and secured, will present a portion where the lap occurs of approximately the same width and thickness as the body, and to accomplish this by a single operation upon each end to save stock and to insure a perfect lap, a positive length, and even thickness. Heretofore this has been ac complished by commencing the bevel at a proper point upon the body and cutting down toward the end; but in such operation not only is the thinner part or end liable to break off and prevent a perfect lap,'but it is necessary to trim the ends by a subsequent operation, usually by hand. It is also difficult to obtain the exact starting-point upon the body of the material. In my invention the point of commencementis arbitrary, being the extreme end. The beveled portions are exactly similar, and no subsequent operation is necessary.

To this end the invention consists in the mechanisms constructed and arranged in relation to each other, as shown in the accompanying drawings, which form a part of this specification, and in which- Figure 1 is a topplan view of the device Fig. 2, a central longitudinal section on as .10;

Fig. 3, a sectional view, showing a modification of the presser-bar; Fig. 4, a side view; Fig. 5, section on y y of Fig. 4.

Referring to' the drawings, A represents a proper frame having longitudinal slot a and journal-bearings a, t'orashaft, B,havingp0werpulley 1) upon one end, and a cam-wheel rigidly secured to the other. This cam-wheel O is preferably made with an open corrugated annular slot, 0, in which operates a pin, d, secured upon one end of a lever, D, pivoted or fulcrumed at d upon a frame or bracket, 01 secured to the main frame A, the other end of the lever D being loosely secured to a reciprocating knife or saw, E, working in proper guides e in the frame A. This cam-wheel C may, however, be made with but one corrugated side, and have a spring attached to hold the pin din contact therewith by a constant force.

Rigid upon the shaft B, at or near the center thereof, is a gear-wheel, F, which meshes with a rack-bar, G, secured upon the lower surface of a reciprocating table, which works in guides of upon the inner sides of the frame A. For convenience I will describe this reciprocating table in detail.

H represents the body of the table, to which the rack-bar G is secured, to which is hinged, at h, the inclined table H, which is rendered adjustable at its free end by means of a cam or cams, I, rigid upon a shaft, 1, working in a transverse slot or bearing, 2', formed in the body H, and having a thumbwvheel, i, or other convenient manipulating device. The cams I operate upon the table H to elevate the free end thereof at the will of the operator. The

Y shaft 1 traverses the slot a, while the table is being reciprocated by means of the shaft B, and said slot serves, in a measure, to control the table against vertical displacement.

A feed-roll, K, is journaled in blocks 70, op erating loosely in recesses in standards A, and is held downward by the constant force of rubber or other springs k.

Journaled in the standards A, at l, is the shaft L of a presser-bar L, having a hand-lever, 1.

The operation of the machine is obvious.

The inclined table is receded until the knifeedge is in an approximately close contact with the same, when the material is forced under the roll and the presser applied to hold the end of the material close to the table. The shaft B being then rotated, the knife or saw cuts the material exactly, according to the angle of the incline of the table, and this incline may be varied at will by means of the cams I to accommodate difi'erent thicknesses of leather.

In Fig. 3 is shown a modification of the presser,in which a friction-roll is journaled in a pivoted bar or frame, and the roll bears upon the material.

Various modifications in details of construction may be made without departing from the principle or sacrificing the advantages of my invention, the essential features of which are fully described and shown.

What I claim as new, and desire to secure by Letters Patent of the United States, is-

CHAS. H. WESTON.

Witnesses A. R. KING, L. G. 80cm.

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