US431189A

US431189A - Invalid-bedstead

Info

Publication number: US431189A
Authority: US
Publication date: 1890-07-01
Anticipated expiration: 1907-07-01

Description

(N0 Model.) 2 Sheets.-Sheet 1. G. W. HAMLIN. INVALID BEDSTEAD.

PatentedJuly 1, 1890.

(No Model.) 2- Sheets--Sheet 2. O. W. HAMLIN. INVALID BEDSTEAD.

Patented July 1, 1890.

UNITED STATES PATENT OFFICE.

CHARLES WV. HAMLIN, OF CI'IATFIELD, MINNESOTA.

lNVALl D-BEDSTEAD.

SPECIFICATION forming part of Letters Patent No. 431,189, dated July 1, .1890. Application filed April 1'7, 1889. Serial No. 307,605. (No model.)

To all whom it may concern:

Be it known that I, CHARLES KHAMLIN, a citizen of the United States, residing at Chatfield, in the county of Fillmore and State of Minnesota, have invented a new and useful Invalid-Bedstead, of which the following is a specification.

This invention relates to improvements in in valid-bedsteads; and it consists in a certain novel construction and combination of devices, fully described hereinafter in connection with the drawings, and specifically pointed out in the claims.

In the drawings, Figure 1 is a perspective View of a bedstead embodying my improvements with the adjustable portion of the bedbottom elevated and the table arranged in the operative position. Fig. 2 is a vertical longitudinal sectional View on the line 00 a: of Fig. 3. Fig. 3 is a plan view in the folded position. Fig. 4 is a detail view of one of the adjustable legs. Fig. 5 is a detail view of bar P. Fig. 6 is a side elevation of the ad j ustable table.

Referring by letter to the drawings, A designates the frame of the bedstead, within which is fitted the bed-bottom l3, and the head portion 0 of this bed-bottom is hinged to the main or foot portion. The head portion consists of two independent sections 0 0, arranged close together and adapted to be independently elevated or arranged at different inclinations by means of adjustable legs, hereinafter fully described.

Folding arms D D are pivoted to the side rails of the bedstead, and are provided at their upper ends with the pulleys d cl, over which the operating-cords E E are guided. Each of these cords is attached at one end to the upper end of a section 0 and at the other end to the revoluble drum F, which is mounted in suitable bearings close to the head of the bedstead and beneath the bed-bottom. The folding arms are adapted when not in use to be folded down close to the side rails of the bedstead, as shown in Fig. 2; but when the head-sections are to be elevated by the rotation of the drum these arms are raised to a vertical position, as shown in Fig. 1, and the spring-catches G, consisting of flat steel springs arranged upon the lnner faces of the on, and a keyor crank H, which is shown applied in the operative position in Fig. 1 and detached in Fig. 3, is employed to turn the drum. The head-sections are provided with the adjustable legs K K, which are hinged at their upper ends thereto, and are adapted to fold against the lower side of the bed-bottom when not in use. These legs are longitudinally slotted at their lower ends, and ex' tension-bars L are arranged at the lower ends of the legs and are provided with headed guide-studs 7a In and set-screws 7a 7a to operate in the said slots. After the head-sections are elevated the extensible legs are swung down and adjusted in the proper positions to support the sections, whereby the drum is re lieved of the strain incident to the pressure of the reclining occupant of the bed.

The extensible legs enable the head-sections to be independently adjusted, and when this is desirable the cords E are slackened, which permits the sections to move independently.

The bed-bottom consists, essentially, of the side bars M M, which fit close to the ledges N N on the inner sides of the side rails of the bedstead-frame, and the transverse bars or. m, secured to the lower edges of the said side bars and projecting beyond the same to fit in the notches 'n n in the upper sides of the said ledges. Supporting cords or wires 0 O are stretched across the bed-bottom between the upper edges of the side bars M M to support the mattress. The head sections are also provided with the transverse bars m m, which project laterally beyond the side bars and fit in notches a n in the ledges N N when the sections are in their horizontal position.

A head-bar P is arranged across the free ends of the headsections on their under sides, and is provided with perforations p to receive keepers P on the said sections.- Small pins Q Q engage the said keepers to hold the head-bar in position. The object of this bar is to lock the head-sections together when it is desired to arrange them at the same inclination; but when the sections are to be arranged at different inclinations this bar must be removed by Withdrawing the pins Q.

R represents an adjustable table having the folding legs 1" a", which fit at their lower ends in sockets S S in the ledges N N, the legs being provided with shoulders r r to bear on the upper side of the ledge. A series of sockets S S are formed in the ledge to enable the table to be arranged in the most convenient position for the patient.

It will be understood that minor changes may be made in the details of construction of this device without departing from the spirit of the invention. For instance, the supporting cords or wires on the bed-bottom may be substituted by the usual slats or transverse bars. c

It will readily be seen that when it is desired to adjust the head-sections independently and maintain them at different inclinations, the supporting-logs are lengthened or shortened, as required; but when the sections are adjusted to the same inclination they are connected by the bar and elevated or lowered by means of the crank, and the tions the spring-catches consisting of fiat springs having at their free ends pins adapted to engage the perforations and hold the said arms in their operative position, the drum provided with a suitable crank or key and a pawl-and-ratchet device to lock it in the desired position, and the cords connected to the head portion and the drum and passing over the said pulleys, substantially as specified.

'2. In an invalid-bedstead, the combination of the bed-bottom having a vertically-adjustable head portion composed of hinged sections, and the head bar detachably connected to the free ends of the sections and adapted to be removed to permit the sections to be adjusted separately, substantially as described. In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

CHARLES WV. HAMLIN. Witnesses:

EVERETT JONES, O. L. OBER.