US518580A - Veterinary obstetrical forceps - Google Patents

Description

(No Model.)

Patented Apr. 24, 1894.

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ORIE Y. BARTHOLOMEW, OF DES MOINES, IOWA.

VETERINARY OBSTETRICAL FORCEPS.

SPECIFICATION forming part of Letters Patent No. 518,580, dated April 24, 1894.

Application filed February 9, 1894. Serial No. 499.610. (No model.)

To all whom it may concern:

Be it known that I, ORIE Y. BARTHoLo- MEW, a citizen of the United States of America, residing at Des Moines, in the county of Polk and State of Iowa, have invented an Improved Veterinary Obstetrical Forceps, of which the following is a specification.

My invention consists in certain details o construction of the device whereby a simple and durable extractor is provided that is free from all sharp corners and may be positively operated to open or close with one hand, as hereinafter set forth, pointed out in my claims and illustrated in the accompanying drawings, in which- Figure l is a plan view of the complete devlce. Fig. 2 is an enlarged detail view showlng one of the end pieces for the connecting rod. Fig. 3 is a transverse sectional view through the end of the jaws. Fig. 4 is a perspective view of a modified form of jaw.

Referring to the accompanying drawings the reference letter A is used to indicate the stationary part of the handle havinga socket A2 formed on its inner end with a bore extending therethrough parallel with the handle.

A3 indicates a movable handle section pivotally attached to the stationary one at A4 and curved outwardly and rearwardly and then parallel with the stationary handle sec-` tion its end A5 being curved outwardly and forwardly so that the handle maybe readily separated by opening the hand.

B indicates a socket adapted to receive the jaws, its forward end is hollowed out and a longitudinal screw threaded bore is extended therethrough. The jaws proper C are inserted in the socket B and pivoted therein on the journals B2 with their inner ends curved inwardly and overlapped. Slots C2 are formed in said overlapping ends for purposeshereinafter set forth.

D indicates a tube having screw threaded ends adapted to be inserted in said sockets and of sucha length as it is desired to separate the handles from the jaws.

D2 indicates a bifurcated connecting piece adapted to overlap the inner ends of the jaws and Da is a pin adapted to be extended therethrough and through the slots C2 formed in said ends so as to allow a lateral movement of the jaws relative to each other.

H indicates a like connecting piece adapted to be slidingly connected with the movable handle portion in a similar manner and J indicates a rod screw-threaded at its ends and adapted to enter screw threaded bores formed in the ends of said connecting pieces. This rod is passed through the hollow interior of the tube D and is capable of moving longitudinally therein. Fixed to the broadinner faces of said jaws are the rubber cushions J 2 provided for the purpose of preventing injury to the pigs, and in Fig. 4 is shown a modified form of said ends in the shape of a cup with its edges rounded to avoid injury to the plgs.

It will be obvious that by my construction all corners are avoided, the hinged portion of the movable jaws protected and the part used to impart motion from the handle to the jaws completely covered. lt is also obvious that the concave faces of the jaws are adapted to admit elastic cushioning material or the soft flesh of a pig and hold fast the same by suction.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent of the United States therefor, is

l. The improved veterinary obstetrical forceps, comprising the following elements, a stationary handle portion having a screwthreaded opening formed in its outer end, a movable handle portion pivoted thereto, a socket having a screw threaded opening formed therein, two jaws pivoted in said socket, a tube connecting said socket and the stationary handle and a rod pivotally and slidingly connected with the movable handle and with said jaws to operate them when the handle is moved, for the purposes stated.A

2. An improved veterinary obstetrical forceps, comprising a stationary handle with a screw-threaded opening therein, a movable handle portion pivoted thereto, a socket having a screw threaded opening formed therein, two jaws pivoted in said socket and provided with cushioned inner faces at their outerends, -piece to connect the rod With the movable slots formed in the inner ends of said jaws as jaws, all arranged and combined to operate set forth, a tube having screw threaded ends as set forth.

adapted to enter said screw threaded openi ORIE Y. BARTHOLOMEW. 5 ings, a rod passed through said tube, a bifur- Witnesses: cated connecting piece adapted to connect J. RALPH ORWIG,

the movable handle with said rod and la like THOMAS G. ORWIG.

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