US1195456A - Bedstead-jack - Google Patents

Description

0. D. FOSBURGH.

BEDSTEAD JACK. APPLICATION FILED rfa. 24, 1915.

Patented Aug. 22, 1916.

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Ogden D. Fosburgh By M ATTORNEYS OGDEN D. FOSBURGH, OF, ST.JOSEPII, MISSOURI.

BEDSTEAID-J'ACK.

Specification of Letters Patent.

Patented Aug. 22, 1916.

Application filed February 24, 1915. Serial No. 10,221.

To all whom t may concern:

Be it known that I, OGDEN D. Fosnunerr, a citizen of the United States, and a resident of St. Joseph, in the county of Buchanan` and State of Missouri, have invented anew and Improved B'edstead-Jack, of

which the following is a full, clear, and

exact description.

My invention relates to beds for hospif tals and sick rooms, and in which provision is made for lifting the bed at the head to raise the patient from a horizontal to an inclined position.

The invention more particularly relates to a bedstead the head of which is provided with extension legs.

The prime objects of the invention are to provide a bed of the indicated character in which the extensible legs may be adjusted by a nurse or attendant without assistance; to provide an extensible leg attachment that may be applied to standard makes of metal beds, with little structural change in the latter, and to provide for securely maintaining the extensible legs in adjusted position.

The invention will be particularly described in the specific description following.

Reference is had to the accompanying drawings forming part of this specification, in which similari characters of reference indicate corresponding parts in all the views, and in which:

Figure 1 is a side elevation of a bedstead embodying my invention adjusted to dispose the bed in an inclined position. Fig. 2 is a partly sectional side elevation of the lower portion of one leg at the hea-dof the bed, with my attachment applied thereto. Fig. 3 is a fragmentary sectional elevation at right angles to Fig. 2; Fig. 4 is a horizontal section on the line 4 4 Fig. 2, on an enlarged scale; and Fig. 5 is a vertical section on the line 5 5 of Fig.` 4.

My invention is applicable to metal beds of known form having a head 10, a foot 11, and side rails12. The tubular legs 13 of the head 10 are provided with expansible Vleg members 14, having any approved casters 15.

In order to adjustably secure the extensible legs 14, the said leg is formed with a rack 16 extending vertically thereon, and each rack is apt to be engaged by a pawl 17 which is vertically disposed on a clamp sleeve 1.3 adapted to be secured by means hereinafter described, to the tubular leg 13 of the bedstead.

The pawl 17 is pivoted by a pin 19 between latcral ears 20 on the sleeve 18, and is under the iniiuence of a spring 21. The spring 21 is a plate spring doubled on itself and secured by a transverse pin 22 passing through the ears 20. The upwardly extending arms of the spring bear respectively against the outer side of the sleeve 1S and the inner side of the pawl 17 normally tending to hold the pawl in engagement with the rack 16.

In order that the pawl may be held against accidental disengagement from the rack 16, I provide on the sleeve 18 a vertically swinging latch dog 23 which is pivoted to the sleeve as by a pin 24. The outer end of the dog 23 is adapted to be received in a notch 25 formed in the upper end of the pawl 17 and to rest on a shoulder 26 at the lower end of the notch.

By the described construction it will be seen that so long as the dog 23 is in position, the pawl will be held in engagement with the rack, and therefore the extension leg 14 cannot rise in the tubular fixed leg portion 13. IVhen, however, it is desired to raise or lower the bedstead, the dog 23 is swung upwardly, which will permit the leg 14 to slide downwardly in the leg 13, the rack 16 slipping past the pawl 17. Or, the pawl may be released from the rack and the bed lowered, the tubular leg 13 sliding downwardly on the extension leg 14, as will readily be understood.

The sleeve 18 is adapted to be secured to the leg 13 of an ordinary bedstead, for which purpose said sleeve is in the form of a split ring, as best shown in Fig. 4, and is provided with parallel lugs 27 at its ends, said lugs receiving a clamp screw 28, here shown as a thumb screw. Thus the attachment may fitted to any ordinary metallic bedstead having tubular legs without any substantial change in the latter. In order to further insure that the extension leg be firmly 1naintained against accidental movement into the tubular leg 14, a set screw 29 is provided on the sleeve 18, said set screw turning in the depending lug 30 at the lower end of the sleeve and being adapted to hind against the extension leg 14 opposite the pawl 17. Thus the extension leg 14 if loosely fitting the sleeve 13, will be prevent/6d. from any lateral play in said leg 13 that might result in a disengagement of the extension leg from the pawl.

My improved device permits of one nurse or attendant manipulating the bedstead to incline the patient, as will readily be understood. l

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

l. In a bedstead jack, a clamp sleeve adapted to be secured to a bedstead leg, an eXtensible leg slidable in the said sleeve, the said extension leg having a longitudinal rack, a pawl pivoted intermediate of its ends on the sleeve by a horizontal pivot and engageable at one end with the said rack, and a latch dog pivoted on the sleeve and adapted to engage the pawl to prevent movement thereof on its pivot and hold the pawl in engagement g3 Y between the ends of the pawl, a spring introduced between the pawl and sleeve and tending to maintain the pawl in engagement with the rack, and a latch rdog pivoted on the sleeve and engageable with the pawl to hold same againstmovement on its pivot.

In testimony whereof I have signed my name to this speciication in the presence of two subscribing witnesses.

OGDEN D. FOSBURGH.'

Witnesses:

WILFRED H. EATON, MORTE H. CRAIG.

Copies of this patent may be obtained for ve cents each, by addressing the- Commissioner of Patents, Washington, D. C.

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