US377377A - Spring-bed - Google Patents

Description

(No Model.)

C. G. FERRY.

SPRING BED.

Patented Feb. 7, 1888.

OARLOSTIN G. FERRY, OF HILLSBOROUGH, ASSIGNOR OF ONE-HALF TO ROSTO O. \VOOD, OF MANCHESTER, NEWV HAMPSHIRE.

SPECIFICATION iorming part of Letters Patent No. 377,377, dated February 7, 1888.

(No model.)

To all whom it may concern.-

Be it known that I, CARLOSTIN CYRUSFERRY, of Hillsborough, county of Hillsborough and State of New Hampshire, have invented anew and usefulImprovement in SpringBeds; and I hereby declare the following to be a full,clear, and exact description thereof, reference being had to the drawings which form a part of this specification, in which- Figure l is a sectional plan view of my invention, showing the head portion of the bed elevated to an inclined position. Fig. 2 represents a plan view of the piece containing the tooth-rack and groove combined, for purposes hereinafter explained. Fig. 3 shows a metallic groove for purposes further on explained and in what manner applied.

The object of this invention is to provide a suitable mechanism for raising or lowering the head portion of a spring-bed to change thepo sition of an invalid at pleasurcwithout the aid of chairs or other support, as now resorted to, and in such a manner that no part of the bedspring-frame support shall be weakened but strengthened instead at a point where most needed.

It consists in attaching to the main framesupport a projection of hard wood or iron, preferably the latter, on which may be formed ratchet-teeth in a horizontal position, and at right angles with which is a groove with or without a slot on its posterior surface for bolthead, if desired, both of which I prefer to have cast in one piece, (but maybe otherwisc, the tooth-rack to receive a pawl and the grooves to receive end pins, friction-rollers,or bolts for purposes hereinafter explained and in what manner employed.

A represents one of the longitudinal supporting-bars of a spring-bed, upon which the springs are placed. The pieces B are made about two feet in length parallel with each other, and held firmly in position by means of cross-slats oriron rods. On this frame so made rest about one-third of the springs used for the bed. To the externalperpendicularsurface of pieces 15,1 attach apiece of hard wood or metal, in which isa groove for the reception of a metal pin, friction-roller, or bolt. (Seen at 0.) (See Fig. 2.) The pin, friction-roller, or bolt is made a fixture at one end of lever D, and at the other end there is a similar pivot or bolt working in another groove at right angles with the horizontal tooth-rack, both of whichi. 0., tooth-rack and groove-are represented in one piece and fastened to longitudinal bar A.

D is a lever pivoted to link G at points h intermediate between pivots or bolts (6 andf, which operate within the grooves made fast to the external surface of longitudinal bars A and B, respectively. The links G are pivoted to the longitudinal bar A at one end and to the supplemental bar B at the other. If iron rods are used to connect the bars B, their ends may be used as pins to engage with the metallic grooves, if desired.

On the pivot or bolt at the lower end of lever D, I place thereon loosely a pawl, K,which engages with the horizontal tooth-rack when the head portion of the bed is being raised,and the pawls K or ratchet-clicks must necessarily work simultaneously and easily without the necessity of any connecting crosspiece or weight of any kind whatever,because,being fitted loosely upon the pivot or bolt, they must of their own weight fall into place as they are drawn over the tootlrrack while the section is being raised.

Another way to combine a groove with the horizontal tooth rack would be to place a groove below the tooth-rack on one or both sides thereof and at right angles therewith, presenting a similar appearance to a T-rail with tooth-rack on top, and allow a projecting flange or flanges on the pawl or ratchet-click to engage therein, and it will work equally as well for all practical purposes and with no extra expense.

I am aware that one Charles D. Rodebaugh obtained Letters Patent on a somewhat similar device to my own for raising the head portion of a spring-bed; but in his device the grooves were chiseled out of the longitudinal bar or sectionsupport, thereby weakening them to such a degree that several have been broken while attempting to adjust the head portion of the bed in position, besides much valuable time is wasted in digging out those slotted grooves, and withal there is too much friction on the pivot or bolt working therein for all prac- IOC tical purposes in its adjustment; and, too, he attaches a cross-piece to the upper portion of the 2. The combination of a combined horizontal tooth-rack and groove provided with slot on its posterior surface for bolt-head,with longitudinal bars of a frame-support of a springbed, and supplemental section thereof with 20 groove attachment, paw] K, levers D, and links G, as and for the purposes herein described and set forth.

OARLOSTIN O. FERRY.

\Vitnesses:

N. U. LANG, J. B. WVooD.

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