US434212A - Spring-hinge - Google Patents

Description

G. R. TAXIS. SPRING HINGE.

(Model.)

No. 484,212. Patented Aug. 12,l 1890.

@V4/(Meeuw UNITED STATES PATENT OFFICE. y

GIDEON R. TAXIS, OF MORRIS, ASSIGNOR, BY DIRECT AND MESNE ASSIGN- MENTS, TO TIIE COLEMAN HARDVARE COMPANY, OF CHICAGO, ILLINOIS.

lSPRING-HINGE.

SPECIFICATION forming part of Letters Patent No. 434,212, dated August 12, 1890.

Application filed .Tune 30,1888.

To all whom it may concern.'

Be it known that I, GIDEON R. TAXIS, of Morris, Grundy county, Illinois, haveinvented certain new and useful Improvements in Spring-Hinges, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, and

j to the letters of reference marked thereon.

Y The object of my invention is to provide a simple and effective spring-hinge which is easily made and applied, and which, while little liable to get out of order, can be easily repaired.

In the drawings, Figure 1 is a perspective' view of my improved hinge. Fig. 2 is a side elevation thereof. Fig. 3 is a plan view, and Fig. 4. is a transverse sectional view.

Reference bein g had to the drawings, A and B represent two hinge plates or leaves of corresponding design and dimension. Each of these plates has knuckles a a, extending from one end edge, and the knuckles b l), projecting from the other end edge. The location of these knuckles is such that when the plates are united by the pintle C passing through them knuckle a of one plate will lap past and bear fiat against knuckle b of the other plate. Knuckles b are preferably made thicker thanknuckles a, and the surface thereof against which the lapping end of knuckles a bears is sunk, so .that the outer surfaces of the articulating knuckles of the plates may be in the same plane, and so that when the plates are in the position shown in Fig. l the breasts of knuckles a and b will meet.

I do not claim anything new for the construction of the hinge-plates and knuckles, as just described, for such method of construction is common.

The new feature consists in the application and combination therewith of the J-shaped torsional springs, which are similar in shape and dimensions and are preferably made of steel wire of suitable torsional strength. The extremities of the shorter arm of the springs D and E are caught under and bear outward against the hook-shaped lugs c c, which face inward and are located near the outer longitudinal edge at about the center of length of each plate. From these lugs c said springs pursue a longitudinal course toward and Serial No. 278,705. (Model.)

pass under and around the hook-shaped lugs ci cl, which face outward and are located at the corners of plates D and E, diagonally opposite each other, and after making a bend said springs pursue a longitudinal oblique upward substantially straight course to and into sockets A and B', projecting longitudinflly parallel with the center of motion of said hinge plate toward each other from 6o the knuckles b h of the plat-es A and B, respectively, as shown. These sockets A and B (as reference to the drawings will disclose) project from knuckles b b at corresponding points equidistantly removed from the center of motion of thc hinge-plates of the' hinge, and are in the same longitudinal vertical plane as the pivotal center and spring E, the end of the longer arm of which enters socket A (proj ecting from knuckle b of hinge- 7o plate A) in the reverse position to that of spring D, the end of the longer arm of which enters socket B', projecting from the knuckle b of hinge-plate B. After the hinge-plates are connected by the pintle C passing through the knuckles thereof, (said pintle having a head at one end and being screw-threaded at the other, so as to permit a thimble to be screwed thereon to retain it in place,) and after the springs D and E are placed in posi- 8o tion, as described, said springs will, as the plates are turned toward each other, be compressed, so that the ends of the substantially straight portions thereof will approach nearer each other until the sockets 'are in such posi- 8 5 tion that straight lines drawn from their respective centers to the center o f oscillation of the hinge will be at right angles to each other. vThe compression of said springs will thereupon cease and expansion begins and 9o continues until the plates A and B are parallel with each other. The reverse of this proposition is equally true. Vhichever way the plates are turned when the springs are compressed, there is resistance to the movement, and whenever the springs expand the movement of the plates is assisted.

I do not Wish to be confined to the use of a J -shaped spring in conjunction with my improved hinge, for a spring operating on the Ioo same principle might be used which would correspond in length to the stretch of said J- the knuckles a of one plate lap outside of the knuckles l) of the other plate, and the J -Shaped 1 5 torsional springs D and E, the shorter arm of each of which is secured by lugs CZ and c of one plate, and the longer arm of which pursues an oblique longitudinal course from lug d to the socket projecting from the knuckles b of the zo other plate, as and for the purpose set forth.

GIDEON R. TAXIS. lVtnesses:

JOSEPH II. PETTIT, G. R. LIVINGSTON.

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