US75265A - William he ate - Google Patents

Description

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Letters Patent No. 75,265, dated March 1o, 186s.

IMPROVED INVALID-BEDSTEAD.

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TO ALL PERSONS TO WHOM THESE PRESENTS MAY COME:

Be it known thatI, WILLIAM HEATH, oi Bath, in the ,county of Sagadahoc, in the State of Maine, have invented a new and useful or improved.Invalid-Bedstead; and I do hereby declare the sameto be fully described inthe following specification, and represented in the accompanying drawings, of which Figure l denotes a side elevation, and

Figure 2.a longitudinal section of it. v

Figure 3 is a transverse section taken through the operative shai't and pinions or gears G G.

In the said drawings, A denotes the frame for supporting the operative-parts, it' being formed as represented, or otherwise suitably made. At or near one end ot` this frame is what I term the seat-frame D, which constitutes'part of the bedstead-frame, which is composed of -four portions, B, C, D, andE, all of which are to b I suitably connected together by hinges z' lc Z, upholstered or provided with cushions, as shown at bc'd e. Within the frame A, and' against opposite sides of it, two toothed sectors, F F, are arranged, and are applied to the I frame so as to be capable of being moved on centres, and in vertical planes, and by means4 of gears'G Gr, fixedv on a horizontal shaft, H, extended across theframe A, and being supportedin suitable boxes or bearings applied thereto. From each of the toothed-sectors an arm, j', supported by a stud, g, is extended toward and underneathnthe parts B C of the bed-frame. rJfhe front edge of the'said part C rests on the two arms There are also one or more arms, h r, which are'extended from the under side of the portion'C, underneath and against the lower side of the part B. An elastic band or spring,`I, extends from thepart C to or about tothe rear part of the portion D, and at its endsis fastened to the bottoms of such parts. When the part E is in the act of being elevated bythe toothed sectors, the said band I serves to depress or decline the part C. Afpot-frame, a2, having short legal?2 b2, is fastened to the front end of the part B, and serves to support the said part B when in its lowestposition.

The seat-frame Dis held in position or connection with the frame A by means of short pins, c, projecting` from the frameA up'into holes made in the seat-frame, near its front edge and ends, the same being large enough to admit of the seat-frame being depressed or dropped backward a little. lllinges may be used in lie' of such pieces. -While the back frame, E, is in the act of being raised, the seat-frame will be depressed or declinedinto triangular recesses, K K, made in the two side rails of the frame A; `The bottoms, e2 e2, of these recesses serve tosnpp'ort the seat-frame when depressed `on them. In rear of each of the recesses K K is another such recess, L, which is formed on the side rail. The bottom, f2, of such recess is an inclined plane, and serves as a cam to enable the back frame E, whilebeing depressed,'to elevate the frame D into a horizontal position or out-oil the recesses K K. In'order to support the varms ffof the sector, when. the parts B C D E' are-.in horizontal positions, I hinge to them a pair of legs, M M, and so that such legs `will stand vertically on the door when the parts B, C, D, and E, are in a horizontal plane.. The said legs take an inclined position when theback frame, E, is elevated, .in which ease the' legs extend back underneath the parts C and D. By applying a key or crank to the shaft H and revolving it, we can put the toothed sectors in movement so as to throw the back-rest E up into an inclined position, and the leg-rests B C down into inclined positions. The seat-frame D will alsobe depressed at its rear edge, or will fall into the recesses K K, the same being as exhibited in the drawings.

The above-described invalid-bedstead, with the exceptionof the recesses K L, and the legs M M, is essentially like what is represented and described in Letters Patent, No. 59,600, granted to me on the 13th day of November,iA. 1). 1866.

The additional recesses, K- L, are for electing important results, as set forth', viz, the depression and elevation of the seat-frame D. The weight of a patient while on the bed and the back frame is being raised, will cause the seat-frame to fall down into the recesses K L, the rearward movement of the back frame on the inclined bottoms fzf2 of the-recesses L L, serving to greatly ease the seat-frame back or down into the recesses. :K K. While the back frame is being depressed, its leverage on the bottoms of the recesses L L will effect the 'elevation of the seat-frame to a horizontal position. i

What, therefore, I claim as my present invention, is as follows: I i I claim the combination of the: recesses K K, LL', or their equivalents, with'thefmme A, the two frames,

D E, and mechanism for moving and depressing or operating the bunk frame E, substantially in manner as 4 described.

I also claim the combination ofthe folding legs M M, the toothed sectors, and their armsff, the frame A,

and the parts B, C, D, und E, arranged and connected substntially ns s peied.'

- WILLIAM HEATH.

Witnesses:

B. HfEDDY, F. P. HALE, Jr.

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