US935965A

US935965A - Veterinary operating-table.

Info

Publication number: US935965A
Application number: US45127708A
Authority: US
Inventors: William Crossley
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-09-01
Filing date: 1908-09-01
Publication date: 1909-10-05
Anticipated expiration: 1926-10-05

Description

W. GROSSLJEY. VETERINARY OPERATING TABLE. APPLICATION FILED SEPT.1, 1908. 935,965 Patented Oct. 5, 1909.

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attomug WILLIAM CROSSLEY, OF WEST HAVEN, CONNECTICUT.

VETERINARY OPERATING-TABLE.

Specification of Letters Patent.

Patented Oct. 5, 1909.

Application filed September 1, 1908. Serial No. 451,277.

To all whom it may concern:

Be it known that I, VVILLIAM CROSSLEY, a citizen of the United States, and resident of West Haven, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Veterinary Operating-Tables, of which the following is a full, clear, and exact specifica- 'tion.

My invention relates to an improved veterinarys operating table, and it has for its object to provide simple mechanism of great stability and rigidity adapted to easily and expeditiously handle, support and securely hold the powerful animals which the veterinary surgeon is called to treat or operate upon.

To this end the invention consists in the novel combination, construction and arrangement of parts as hereinafter more fully described and claimed.

In the accompanying drawings forming a part of the specification, Figure 1 is an end elevation of my improved operating table, and Fig. 2 is a side elevation or front view. Fig. 3 is a plan View. Fig. i is a transverse section through the turning structure and its controlling mechanism, taken on the plane 4: 4 of Fig. 2, showing one of the skeleton end disks in axial elevation. Fig. 5 shows a part of one of the skeleton disk frames of the turning structure, with its guiding track in vertical section in the plane of the track, or

line

5, 5, of Fig. 2. Fig. 6 is a section of the same on a line transverse to the plane of the track or

line

5, 5 of Fig. 2.

Referring to the drawings, the stationary frame or table supporting structure of my improved operating table embodies as its principal feature the pair of circular tracks or rails A set in vertical planes parallel with each other, here shown to be bent up or formed of channel iron having the flanges projecting inwardly. On the outer faces of said rails at their lower sides are riveted the plate strips 6 and the angle iron strips f at the outer face and lower edge of the plate strips and having their horizontal flanges extending inwardly, said angle iron and plate strips together comprising sills of somewhat greater length than the diameter of the circular tracks. To the upper parts of the tracks are similarly riveted the shorter plate and angle iron strips 6 F. To these members on the outer faces thereof are riveted the upright central stanchions g of angle iron and the diagonal stanchions h of similar stock, together forming the strong A frame construction shown. Horizontal cross bars 5 are riveted to the circular tracks and said stanchions, and at the point where the diagonal stanchions intersect with the upper horizontal cross bars, the ends of brace strips 7c are riveted, and inclined outwardly from the base of the structure, being secured to the sills at their lower ends by horizontal ties Z. At their upper ends the stanchions g, h, project above the circular tracks and are riveted to angle iron pieces m which are further supported by legs m riveted thereto and to the angle irons The two sections of the frame are connected at the top by the diagonal connecting bars m m riveted to the angle irons f and the central gusset plate m and at the bottom by the front bar m and diagonal bars m.

Fitted to revolve in the circular tracks A are skeleton disk frames comprising the radial arms 2' riveted to the central disk plates (Z and connected near their outer ends by the angle iron stays a. Each arm carries a pair of antifriction rollers e at its end supported on the ends of a pivot pin f passed through the arm. Said rollers are fitted in and track upon the circular tracks A, as shown in detail in Figs. 5 and 6. Plates n are riveted to the arms on the inner side of the frames, and connected by the plates 71?, to which are attached the I beams n extending from one disk frame to the other somewhat to one side of their axis and connecting them to these beams are bolted the planking n n which comprise the operating table proper, and to which an animal may be secured, with its center of gravity nearly coincident with the axis of the mechanism, and therefore nearly balanced thereon.

The skeleton disk frames are further connected by an I beam R attached to the end portion of one of the arms ?1 of each frame by a strap plate r by means of which the beam is supported clear thereof, exterior to the circumference of the tracks, in the vertical axial plane from which the planking n n is offset and which it is parallel with. Journaled in bearings n on said I beam is a screw r having the grooved pulley r at the end which is over the end of the beam and from said pulley a cable or belt 1- connected with a similar pulley r at the center of the skeleton disk, having its arbor r journaled in the disk plate d and provided with a crank r by which it may be turned. A head r is mounted on the screw 7" and arranged to slide on the upper flange of the I beam operated longitudinally thereof by the screw when turned by the crank W, belt 7 and pulleys 7' and 1'. To said head are attached cables t which pass over sheaves t mounted on the I beam and under the sheaves t mounted on a frame 25 hung beneath the I beam, and are attached at their ends to the I beam. These parts provide hoisting mechanism whereby an animal standing beneath it may be slung from the ground by the operation of the crank 1 sliding the head 1 and thus drawing in, or letting out the cables 6 and correspondingly raising or lowering the frame 23 which is provided with eyes if for attachment of'the strips by which the animal is supported.

At the rear of the machine, or side toward which the operating table is offset from the axial plane, a Windlass is mounted compris ing the shaft t mounted in bearings on suitable frame work i on the supporting structure, the drums t secured on the shaft in the plane of the tracks A, the gears 25 on the ends of the shaft, the pinions t intermeshed with said gears and mounted on a shaft a beneath the gears, and a crank 26 for turning the pinion shaft. Each of the drums t has a double groove for the reception of oppositely wound cables 16 which extend in opposite directions around the skeleton disk frame for acertain distance, passing through slots a in the tracks A and between the pair of rollers on each arm as shown in Figs. 5 and 6, and having their ends fastened to the arms as shown in Fig. 4-. By means of this mechanism the operating table may be turned from the vertical position shown in the figures to any required angle therewith up to the horizontal position, or through the entire circle if the cables are carried all the way around the skeleton disks. An arc of motion of ninety degrees for turning an animal from the erect to horizontal positions is ordinarily suflicient. The structure is exceedingly stable and unyielding on account of the great distance of the supporting points of the table from its center of motion, and the rigidity of the frame.

I claim as my invention:

1. An operating table for veterinary use comprising circular supporting tracks and head frames guided on the supporting tracks and carrying an operating table.

2. I11 veterinary operating tables the combination of a supporting structure comprising a pair of vertical circular tracks or rails having A shaped frames built thereon, and connected in a unitary structure, movable head frames guided or tracking upon said rails and connected in a unitary structure, and an operating table mounted thereon.

3. In veterinary operating tables the combination of a support-ing structure comprising circular tracks or rails, movable head frames guided or tracking upon the rails, a connecting structure joining the head frames near their axial part and carrying an operating table offset from the axial plane, a connecting member mounted upon the head frames near their periphery, in the central plane from which the table is offset and hoisting mechanism supported upon said connecting member for slinging an animal to the table.

t. In veterinary operating tables the combination of a supporting structure comprising circular tracks or rails, movable head frames guided or tracking upon the rails, a connecting structure joining the head frames in a unitary structure in a plane offset from their axis and carrying an operating table, hoisting mechanism mounted upon the head frames, means for operating the hoisting mechanism from the axial center of the head frames, and means for rotating the movable unitary structure in its supporting frame.

5. In veterinary operating tables the combination of a supporting structure comprising a pair of vertical circular tracks or rails joined in a unitary structure, head frames movably guided upon said rails and provided with rollers for tracking thereon, said head frames being connected in a unitary structure and carrying an operating table.

6. In veterinary operating tables the combination of a pair of vertical circular tracks or rails having A shaped frames built there on, a movable structure guided and supported upon said frames and provided with rollers bearing and tracking thereon, an operating table carried on said movable structure, hoisting means carried by the movable structure, and means for rotating the movable structure in its support.

7 In veterinary operating tables, the combination of a bed frame and a circular track erected upon the frame, a rotatable head guided'on the track, an operating table carried and supported by the head at one end and means for revolubly supporting the other end of the table upon the bed frame.

8. In veterinary operating tables, the combination of a bed frame, a circular track erected thereon, and braced by an A frame work connecting the circular track and bed frame, a rotatable head guided to revolve within the circular track, an operating table carried and supported by the head at one end, and means for revolubly supporting the other end of the table upon the bed frame.

9. In veterinary operating table construc tion the combination of the circular tracks of channel iron and supporting frames, the movable unitary structure of framed construction with rollers carried upon its arms and tracking in said channel track, an operating table mounted on said movable structure, a Windlass and cable connection for rotating the movable structure, and hoisting sling mechanism carried by the movable structure, substantially as and for the purpose specified.

10. In Veterinary operating tables the combination of a pair of vertical circular tracks or rails connected in a unitary structure, a pair of skeleton frames supported by said tracks and provided With roller bearings tracking thereon, parts connecting said frames in a unitary structure, an operating table carried on said connecting parts, an overhanging part connecting the frames above the table, hoisting means carried upon said overhanging part, means for operating the hoisting means from the axial center of the movable structure, and means for rotating the movable structure in its supporting track.

11. In veterinary operating tables the com bination of a pair of vertical circular tracks or rails connected in a unitary structure, a pair of skeleton frames supported by said tracks and provided with roller bearings tracking thereon, parts connecting said frames in unitary structure, an operating table carried on said connecting parts, an overhanging part connecting the frames above the table, hoisting means carried upon said overhanging part, means for operating the hoisting means from the axial center of the movable structure, a Windlass, and cable connections extending oppositely therefrom and secured to the periphery of the skeleton frames, for turning the movable structure in its supporting frame or track, sublstantially as and for the purpose specifiec.

Signed by me at New Haven, Connecticut this th day of August 1908.

WILLIAM CROSSLEY. Witnesses:

GEORGE L. BARNES, GERTRUDE R. FARRELL.