US133903A - Improvement in machines for making hinges - Google Patents

Description

L. P. SUMMER'S. Machin-es for ,Making Hinges.

No.133,903 'Patented Dec.`10,1872.

UNITED STATES PATENT OFFICE..

LUCIUs P. sUMMEEs, 0E NEw EEITAiN, CONNECTICUT, AssIeNoE To P.

AND E. CoEBiN,

OF SAME PLACE.

IMPROVEMENT IN MACHINES FOR MAKING HINGES.

Specification forming part of Letters Patent No. 133,903, dated December 10, 1872.

To all whom it may concern."

Be it known that I, LUCIUs P. SUMMERs, of New Britain, in the county of Hartford and State of Connecticut, have invented an Improvement in Hinge-Machinery, of which the following is a specification:

thereby preventing any tremulous motion, and

the cutters are brought up and pressed tol their work by a mechanism connected with the sliding die that rolls up the edge of the blank. The supporting-bedmu is drawn from under the half hinge upon the reverse movement ofthe parts, so that the half -hinge is dropped. In` this manner each half-hinge is completed by one movement lof the machine.

In the drawing, Figure 1 is a plan of the machine; Fig. 2 is a vertical section at the line x and Fig. 3 is an elevation of the cut-4 Yters and holder.

The bed a is sustained upon a suitable frame or legs, and contains the slide b that is reciprocated by the pitman c, crank d, and shaft e.

' At the end of the slide b is a concave or grooved face that acts upon the edge of one of the blanks t' to roll the same over, -said blank being in a groove in the bed a, and the blanks are fed into this groove successively from a hopper or slide automatically.` These parts, being of known character, do not require further description. A stock, h, projecting as an arm from the slide b, carries a shaft, Z, that is revolved bysuitable power applied to the pulley m. `Upon this shaft l are attached rotary files or cutters `a that are of the proper width to cut out the sections of the hinge between the knuckles, and the distance that these are apart determines the lengthof the said knuckles. The holder o is mounted upon the stock h by a fulcrum-pin,3, and provided with a spring or springs, r', adjusting-screw s, and spring-fingers o, the lower ends of which form loops to receive the rounded edge of the hinge. These spring-holding fingers are situated between the cutters n, so that a's the hinge blanks are moved along in the transverse groove of the bed a, and arrested by the stop 4, the fingers o rest against the cylinder portion of the hinge, and hold the same while the spaces are-cut out by the files or cutters u, and as the stock h, with these les or cutters, moves, the fingers and holder o swing on the fulcrum 3 and strain the holding-spring 1 to a greater tension. The slide-plate p is attached by screws 5 to the bed a, and adjusted by screws 6, and beneath the overhanging edge 7 of this plate 1o the back edge of the hinge slides as it is passed along toward the stop 4;

tioned and firmly held while being cut. Beneath this plate p is the supporting-bed t, that is fitted so as to be moved back by the lever w, and there is a hook, 10, upon the stockch (see Fig. 4) that draws back .this bed and a1- lows the hinge to drop. This hook l0 is lifted by, an incline and stop, 11so as to liberate the lever zd' and allow of its return by a spring, 9], (shown by dotted lines,) before thenext half-hinge blank is moved forward toward the stop 4.

I claim as my invention- 1. The holder o with its fingers o, in combination with the cutters n, moving stock h, and mechanism for supporting the blank or half-hinge, substantially as specied.

2. The sliding bed t and lever w, operated substantially as set forth, in combination with the stock h, holder o, revolving cutters n, and slide b, substantially as set forth.

Signed by me'this 10th day of August, A. D.

L. P. SUMMERS. Witnesses:

CHARLES PECK,

SAML. BAssETT.

thereby the hingelblank is accurately posi-`

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