US430635A - Invalid-bed - Google Patents

Description

i D. T. Fox.

INVALID BED.

PatentedJune 24, 1890.

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' UNITED STATES PATENT OEEICE.

DANIEL T. FOX, OF INDEPENDENCE, KANSAS.

INVALID-BED.

SPECIFICATION forming part of Letters Patent No. 430,635, dated J une 24, 1890.

Application filed .Tuly 20, 1889. Serial No. 318,135. (No model.)

To all whom it may concern:

Be it known that I, DANIEL T. FOX, a citizen of the United States, residing at Independence, county of Montgomery, State of Kansas, have invented a new and useful Invalids Bed, of which the following is a speciiication.

This invention relates to that class of invalid-beds the bottoms of which have portions which are adjustable to different angles.

The principal object of this invention consists in a construction whereby the head-section of the bed-bottom is swung or raisedA to an upwardly-oblique angle on a fulcrumpoint which moves back toward the head of the bedstead during the action of raising said section.

Minor objects as to details of construction will appear in the following description and claim.

In the drawings forming a part of this specification, Figure 1 is a plan with parts broken away and parts in section on lines 4 I and 5 5 in Fig. 2, and Fig. 2 is a sectional elevation on line 3 3 in Fig. 1.

Referring to the lettered parts of the drawings, A is the bedstead, of any desired style.

The bed-bottom is composed of three sections bearing transverse slats m to support the Inattress. The central section B is rigidly attached to the inside of the side rails A of the bedstead; Vhile this section is rigidly attached to the bedstead, it is also preferably detachable by means of bolts and thumb-nuts e. The head-section D and footsection C are disconnected from the bedstead, except indirectly, by being j ointedly attached or hinged to the rigid central section B. The bed-bottom near the front end of the central section B and below the same is provided with a revoluble shaft E, having a central sprocket-wheel F and end pinions t'. At the front end of the bedstead is another transverse revoluble shaft I, having central sprocket-wheel R and end pulleys P. The central section B has an oscillating bar o, pivoted at its upper end thereto, one on each side of the bed. To the lower end of each of these bars b is pivoted one end of a rack a, and these section D, which is contiguous to the front end of the` middle section B, is hinged at each side of the bed to thefront ends of the racks a a.

In making this hinged attachment of the front and middle sections I employ straps c, which are attached rigidly to the front section and are hinged at their free ends to the front end of the racks a, Fig. 2.

The slats m may be provided with springs .e or otherwise, as desired.

On the under side of the front end of the front section are attached bows H H. To the upper rear end of these bows is attached the end of the belts S, and from thence these belts contract the under surface of the bows H, pass up over pulleys o in the head-board of the bedstead, and thence down to pulleys P, to which the other end of the belts S are attached.

By means of this construction the operation is as follows: When the shaft I is revolved, the shaft E also revolves through the medium of the sprocket-belt and Wheels F R. Dur ing this action the belts S wind up on pulleys I of shaft I and raise up and carry rearwardly or away from the head-board the front end of the head or front section D of the bedbottom. At the same time this action takes place the then lower end of the front or head section D is carried away from the central section B by the racks a, which racks are carried toward the head of the bed by the pinions t', said racks assuming an inclined position and the bars t) swinging forward during said movement, all as indicated by the dotted position of the section D, rack c, and bar b in Fig. 2. By this means the invalid is raised to a sitting posture without crowding said invalid toward the foot of the bed and without crowdingthe head-section unduly against his back, and more especially against the lower portion of his back, as would be the case if the head-section D was hinged to the middle section directly and was not moved away from said middle section during the upward tilt or movement of said head-section- The foot-section C is hinged at V to the other end of the middle section by straps d, having open slots inserted onto pivots V. These slots are open, preferably, so that the foot-section will be readily detachable; but it is not necessary that any of the sections be detachable unless it is desired to attach them to another bedstead. The foot of the bedstead has a revoluble shaft I', which shaft has end pulleys P P. Belts S are attached 1.o the foot of the foot-section C, pass over pulleys o o in the foot-board of the bedstead, and are attached to and arranged to Wind up on the pulleys P P. By this -means the foot-section C is held to a horizontal ang-le, Fig. 2, or raised or lowered to an oblique angle, as shown by dotted positions in said figure.

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States, is

The combination of a bedstead having the upper pulleys, a shaft journaled to the head of the bed, said shaft having the end pulleys and a central sprocket-Wheel, a bed-bottom fixed in said bedstead and having an upwardly-movable head-section, belts attached to the head-section passed over the upper pulleys and attached t0 the pulleys of the shaft, a shaft having a central sprocket-Wheel and end pinions, said shaft being j ournaled to the fixed part of the bed-bottom, a chain belt on the sprocket-Wheels, the racks pivoted to Jthe head-section meshing` with the pinions and forming; the movable support for the foot of thehead-section, and oscillating bars pivoted at one end to the bed-bottom and pivoted at the other end to the end of the racks, substantially as set forth.

In testimony of the foregoing I have hereunto subscribed my name in presence of two witnesses.

DANIEL T. FOX.

Witnesses:

BENJAMIN F. GRONER, DAVID VANsIoKLE.

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