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AM. PROTO•L?HOORAPH/C CCN. C. (OSBORNES PROCESS)
UNITED STATES LATENT OFFIcE.
BENJAMIN POLLARD OF DUTCH FLAT CALIFORNIA.
IMPROVEMENT IN INVALID BEDSTEADS.
Specification forming part of Letters Patent No. dated October 1 1872.
To all whom it may concern:
Be it known that I BENaAnnN POLLARD of Dutch Flat Placer county State of California have invented an Improved Invalid Bedstead and I do hereby declare the following description and accompanying drawing are sufficient to enable any person skilled in the art or science to which it most nearly appertains to make and use my said invention or improvement without further invention or experiment.
My invention relates to improvements in that class of bedsteads which are used in hospitals and for invalids; and it consists of a novel construction by which the bed can be adjusted to suit the convenience of the in-valid and to turn him from side to side as desired.
In order to more fully illustrate and explain my invention reference is had to the accompanying drawing forming a part of this specification in which-
Figure 1 is a longitudinal vertical section of my bedstead and Fig. 2. is a plan view.
A represents the side rails and B C the head and foot board of an ordinary bedstead. To the lower inside edge of the head-board I hinge a frame D which when turned up horizontally will fit inside of the lower edge side rails and foot-board. The free end of this frame can be sustained in position by a but-ton e or by a spring as desired. The bed-bottom consists of a frame F across which a cord can be stretched in the ordinary manner of cording a bed or some other of the usual spring-bottoms can be placed upon it. The frame F is supported upon the under hinged frame D by spiral springs g g near each end and upon each side. Upon the frame F I place a stretcher which consists of two jointed side rails h h. These rails lie up-on the side rails of the frame F and are connected by a piece of canvas or cloth I which will rest upon the cording or mattress beneath. The rails h h are made in two parts which are hinged together at the middle so that either end may be raised independent of the other. A sliding ferrule j serves to fix this joint when it is desired to have the rails
rigid. A rack-bar K is arranged to move vertically in ways just inside of each of the
four bed-posts the upper end of each one being loosely attached to the end of one of the stretcher rails h h. A transverse shaft 0 passes across the bedstead near each end bearing in the side rails of the bed-frame upon each of which are fixed two toothed wheels p p one opposite each of. the racks k so that they will engage with the racks. One end of each of the shafts 0 extend out beyond the side rail and is formed so as to receive a crank q by which they can be revolved. A spring-plate r is secured to the front bed rail so as to engage with grooves in the shaft o. These grooves are three in number U V W and are placed at a short distance apart. The toothed wheels p p on each shaft are so placed that when the shafts o are drawn out so as.to allow the plate r to rest in the inner groove w the toothed wheel at the front side of the bed will be drawn out of gear with its rack K while the one on the opposite side remains en-gaged; thus when the shaft is revolved by the crank the rear stretcher rail h is lifted while the front one remains stationary. By forcing the shaft 0 inward until the plater en-gages with the middle groove V both of the rails are lifted and when the shaft is pushed further in the near rail will be lifted while the rear one will remain stationary.
Thus it will be seen that the stretcher can be placed in any desired position to accommodate the invalid either to lift either end so as to raise or lower the head or feet or either side may be lifted separately so as to turn the per-son in the bed and by lowering the free end of the lower hinged frame D. the position of the bed can be changed so as to stand the patient partly on his feet so as to rest the person.
Having thus described my invention what I claim and desire to secure by Letters Patent is-
1. The combination of the bedstead A with the lower hinged frame D and bed-bottom f substantially as and for the purpose above de-scribed.
2. In combination with the bedstead A hinged frame D and bed-bottom F I claim the stretcher consisting of the hinged side rails h h connected by the canvas I substantially as and for the purpose above described.
3. In combination with the stretcher con-
2
sisting of the hinged side rails h h united by the canvas I I claim the vertically-moving racks K and transverse shafts 0 with their toothed wheels p p substantially as and for the purpose above described.
4. The adjustable shafts 0 with their toothed wheels p p arranged as described and having the grooves U V W in combination with thespring plate or latch r substantially as and for the purpose above described.
In witness whereof I hereunto set my hand and seal.
BENJAMIN POLLARD. [L. s.] Witnesses:
J. L. BooNE
C. M. RICHARDSON.