US765389A - Operating-table. - Google Patents

Description

PATENTED JULY 19, 1904. F. F. LAWRENCE.

OPERATING TABLE.

APPLIOATION FILED 0013a, 1902.

N0 MODEL.

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WITNESSES: T

' ATTORNEY} Patented July 19, 1904.

PATENT QFFICE.

FLORUS F. LAWRENCE, OF COLUMBUS, OHIO.

OPERATING-TABLE.

SPECIFICATION forming part of Letters Patent No. 765,389, dated J uly 19, 1904,

Application filed October 9, 1902.

To all whom it may concern:

Be it known that I, FLoRUs F. LAWRENCE, a. citizen of the United States, residing at C0- lumbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Operating-Tables, of which the following is a specification.

My invention relates to the improvement of surgeons operating-tables; and the objects of my invention are to provide a table of this class with improved means for permitting the table-top to be inclined either laterally or endwise to the desired inclination and to provide in conjunction therewith improved means for supporting said table-top securely in such inclined positions, to construct my improved operating-table and its connected parts in a simple and inexpensive manner, and to produce other improvements, the details of which will be more fully pointed out hereinafter. These objects I accomplish. in the manner illustrated in the accompanying drawings, in Which-- Figure 1 is a side elevation of atable having my improved construction. Fig. 2 is a view in elevation of the joint which I employ between the table-top and its supporting-base, taken at right angles with that shown in Fig.

- 1. Fig. 3 is an enlarged central vertical section of said joint, and Fig. 4 is an enlarged transverse section taken on line :0 w of Fig. 2.

Similar numerals refer to similar parts throughout the several views.

In carrying out my invention I employ a suitable supporting-base, which may comprise connected oppositely-located leg-frames 1, one of which is shown in Fig. 1 of the drawings. Mounted upon the upper side of the base-frame and rigidly connected therewithis the flanged base 2 of a short vertical and preferably tubular standard 2, with the upper end of which is formed a substantially ballshaped shell or hollow head 3, the latter having formed through its upper half a transverse recess 4. IVithin the ball-like casing 3 is mounted a hollow joint-ball 5, the latter having formed therewith an upwardly-extending bracket 6, the horizontal head of which is rigidly connected with the under side of upward from the standard 2.

Serial No. 126,390.. (No model.)

the central portion of a suitable oblong oper- 5 ating-table top 7.

In the construction of the joint-ball 5 I provide the lower half of the same, as indicated more clearly in Figs. 3 and 4: of the drawings, with equidistant channels orcorrugations 8, which radiate, as shown, from the lower side of said ball and form stiffeningribs therefor. Within these channeled or grooved portions 8 I provide a desirable number of preferably square openings 9.

Passing through an opening in the tubular standard 2, below the ball-casing 3 and ful crumed'in said standard, is a lever-bar 10,

the inner end portion of the latter having connected therewith an upwardly-projecting pin or latch-finger 11, which is preferably square in cross section and which passes loosely through an opening in a transverse guidepin 12 within the standard 2 at its junction with the casing 3. This locking-pin is normally retained in a raised position through the medium of a spring 13, which connects the inner end of the lever 10 with the under side of said plate 12. The outer end of the lever-bar 10 is pivotally connected at 1 1 with the inner end of an outwardly-extending bar 15, which is fulcrumed in a bracket-arm 16, which extends outward. and With the outer end of the bar 15 is pivotally connected the upper end of a connecting-rod 17, which extending downward has connected therewith a foot-lever 18, the inner end of which is fulcrumed on a cross-rod 19 of the base-frame.

It will be understood that whenthe locking- 8 5 pin 11 has its upper end portion projected within the central opening 9 of the ball 5 or that opening from which the different rows of openings radiate the table-top will be locked in the horizontal position. (Indicated in Fig. 1 9 of the drawings.) It being desired to tip said table-top endwise, the foot-lever 18 may be depressed, resulting in the downward movement of the rod 17 and through the pivotal connection of the bars 15 and 10 in a downward or withdrawal movement of the locking-pin 11. This being accomplished, it is obvious "that said table-top may be tipped endwi'se,

the upper end of the locking-pin 11 projecting slightly within one of the channels 8 and being adapted when the pressure on the footlever is released to move by tension of the spring 13 into engagement with the desired one of the openings 9, thus locking the jointball in connection with its casing and rigidly retaining the table-top at the desired incline.

It being desired to tip the table-top laterally, it will be understood that said table-top may be turned or whirled at right angles with the position shown in Fig. l of the drawings, the ball turning within the casing 3. This being accomplished, the lateral tipping may be effected and the table-top locked in the new position in the manner corresponding with that prescribed for locking the same when tipped endwise. It is obvious that the grooves or channels 8 will serve to guide the end of the locking-pin over the line of openings 9 and that owing to a plurality of these openings being employed the table-top may be tipped and locked at different angles or inclinations; It will also be observed that the means which I employ for accomplishing the adjustment of said table-top and locking the same are simple and effective and that the parts employed in my construction are such as to permit of their being produced at a reasonable cost of manufacture.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. A table comprising a base, a hollow spherical bearing carried by the base and provided in its upper portion with a slot,-a jointball fitted within the bearing with its lower portion radially grooved and said grooves provided at intervals with recesses, a bracket carried by the ball and working within the slot of the bearing, a table-top carried by the bracket, a locking-pin projecting through the bearing with its inner end working in one of the grooves of the joint-ball to engage the recesses thereof and adjustably lock the ball, and means to actuate the pin.

2. A table comprising a base, a hollow spherical bearing carried by the base and provided in its upper portion with a slot, a jointball fitted within the bearing with its lower portion radially grooved and said grooves provided at intervals with recesses, a bracket carried by the ball and working in the slot, a table-top carried by the bracket, a lockingpin projecting through the bearing with its inner end working in one of the grooves of the joint-ball to engage the recesses thereof and adjustably lock the ball, a bracket carried by the base, a lever fulcrumed upon the base and pivoted to the locking-pin, an arm fulcrumed upon the bracket and pivoted to the lever and an operating-rod hung from the said arm.

FLORUS F. LAWRENCE.

In presence of A. L. PHELPS, W. L. MORROW.

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