US 401933 A
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Description (OCR text may contain errors)
(No Model.) 'I
f l W.H.DB CAMP.
FRAGTURE APPARATUS. No". 401,933. .Patented Apr. 23, 1889.'
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UNITED STATES i PATENT OFFICE.
VVIIILIAM I-l. DE `CAMP, OF GRAND RAPIDS, MIC/HIGAN.1
SPECIFICATION forming part of Letters Patent No. 401,933, dated April 23, 1889.
Application led July 9, 1888. Serial No. 279,462. (No model.)
To all whom it ina/ zj concern:
Be it known that I, WILLIAM H. DE CAMP, a citizen ot' the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Hinge-Joints for Surgeons Splints; andI do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to improvements in the hinge-joints of bars or strips used to connect surgeons splints; and the objects of my invention are to provide a joint that can be readily adjusted and secured; that will not require a screw-driver, wrench, or other tools to manipulate; that will be compact and convenient; that will not become loosened or have lost motion in the joints while in use; that can be adjusted at any angle, either upward or downward, and that can be stopped from moving beyond a certain point in one di rection and tree to move in the other direction, or released entirely, at pleasure. I accomplish these results by the mechanism illustrated in the accompanying drawings,- in which- Figure 1 is a plan of a connecting bar or. strip for surgeons splints provided with my device; Fig. 2, a horizontal section of the same on the line @c m of Fig. l; and Fig. 3, a plan view of the saine, showing different adjustment ot parts.
Like letters refer to like parts in all the figures.
A A are the bars .or strips which connect 4the splints, to which they are attached at their outer ends byany suitable device engaging with the holes I, and connected at their adjacent ends by a rivet, B, to form a hingejoint moving in the plane of their sides.
C is a segment of a disk (somewhat more than-one-half) having an opening at its center for the rivet B, and a series of openings,
E, having radial sides, said openings being arranged at equal distances from each other and at equal distances from the center B and also adapted to receive the stop-pins F. Said disk is located between the strips A A and the auxiliary strips A A, which latter are hinged at their adjacent ends, the same as A A, by means of the rivet B, and secured at their outer ends to the strips A A by rivets G G. These latter strips may be the saine length of the strips A or A or they may extend but little beyond the disk C, as at A. These strips A A and A A" areseparated a suflicient distance to embrace the disk C, either by bending, as shown in A', or by a Washer, H. All of the described strips A are provided with openings E, corresponding with those in the disk C.
The stop-pinsl` F have radial sides adapted to fit the openings E, and are attached to and held .in place by the flexible springs D D', which extend a short distance beyond said pins, and are turned slightly outward at their outer ends for convenience of manipulation, and are pivoted at their inner ends upon the rivet B.
The operation of my device is as follows: All the parts being free to rotate about the rivet B, the openings E in the strips A can be made to coincide with any of the openings in the disk C and the respective stop-pins engaged with said openings in both. The joint can thus be locked either in a right line or at any angle. ends with the device the angle is reversed in position, as shown in Fig. 3. By throwing either pin entirely outside the disk, as D', Fig. 3,the corresponding strip, A, is entirely free. By engaging the pin F in an opening in the disk only at one side of the strip A said strip is stopped by said pin in its movement in that direction only. By placing a lstrip at each side of the disk and securing their outer ends to each other any lateral exion of the device will not release the pin by separating the parts, but will tend to compress the inner strip vand press it toward the outer one, thus keeping the parts lirmly in contact. The openings E and the pins F, being narrower at their inner sides, and the said pin moving away from the center B as it is withdrawn and toward the same as it is inserted, is firmly wedged between the converging sides of the openings and all lost motion avoided and taken up. v
What I claim, and wish to secure, is as follows:
l. In combination with surgeons splints, connecting-bars having a joint, and a disk By detaching and changing IOO the combination of jointed bars havingopenings for a stop-pin, a disk with conter coincident with the joint of said bars and having corresponding openings for said stop-pin, and a stop-pin attached to a flexible spring pivoted at the center of said disk, substantially as described.
In testimony whereof I affix my signature in presence of two Witnesses.
WILLIAM H. DE CAMP.
JOHN IVI. KEMPIs, LUTHER V. MoULToN.