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Publication numberUS441569 A
Publication typeGrant
Publication dateNov 25, 1890
Filing dateMay 7, 1887
Publication numberUS 441569 A, US 441569A, US-A-441569, US441569 A, US441569A
InventorsIiermon W. Ladd
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Folding bed
US 441569 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

.(No Model.)-

2 Sheets-Sheet 1.

H. W. LADD.

FOLDING BED.

Patented Nov. 25,3890.

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2 Sheets-Sheet 2;

-(No Model.) H. W. LADD.

FOLDING BED. No. 441,569. v Patented Nov. 25, .1890.

WITNESSES; INVENTEIF\':

complished.

. UNITED STATES PATENT OFFICE.

HERMON IV. LADD, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO OOMSTOCK BROTHERS, OF UTICA. NEW YORK.

FOLDING BED.

SPECIFICATION forming part of Letters Patent No. 441,569, dated November 25, 1890.

Application filed May '7, 1887. Serial No. 23 7,416. (No model.)

To all whom it may concern.-

Be it known that I, HERMON W. LADD, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Folding Beds, of which the following, taken in connection with the accompanying drawings, is a specification.

This invention is designed to provide an improved means of connecting the folding legs of cots and other beds to the frames or side rails thereof, such means consisting in two inflexible connecting-links of unequal length, each pivoted both to the leg and to the side rail, so that the leg may swing freely from a vertical supporting position to a horizontal folded position.

In the drawings, Figures 1,2, and 3 are elevations of a plain bed or cot frame, showing part of the side rail with the leg connected thereto by the links, and seen in the folded, partially unfolded, and fullyspread positions. Fig. 4 is a partial View of a bed supported by such folding legs.

A is one of the side rails, and B one of the end rails, of the bed or cot frame.

0 is one of the folding supporting-legs connected to the rail A by the two rigid links D and E, each of which is pivoted to the leg by pivots F and to the side rail by pivots G. I prefer to duplicate the upper link, as shown in Fig. 4. The oblique braces H, which connect the legs transverselyin pairs, are shown in the same figure. The links are of unequal lengths and are not parallel; but if the distance between their pivots on the side rail added to the pivotal length of one of the links is equal to the distance between their pivots onthe leg plus the pivotal length of the other link the folding may be readily ac- The two inflexible connectinglinks permit to the legs a free swinging movement from the vertical supporting position for use into the horizontal or folded position parallel to and in contact with the side rails Without disconnecting either link or requiring any joint therein. This folding feature with two such links is a peculiarity of my invention, and I do not limit myself to the specitic arrangement of the legs and links represented in the drawings, as the points of attachment and length of links may be changed.

My improved beds may be suitably upholstered, as at J, Fig. 4.

I claim as my invention 1. In a folding bed, the frame and supporting folding legs therefor, in combination with two rigid links or braces of unequal pivotal lengths for each leg, each link pivoted to the side rail and to a leg, the shorter link being pivoted nearer to the end or corner of the frame and nearer to the upper end of the leg than the longer link, for the purpose set forth.

2. In a folding bed, the frame and supporting folding legs, in combination with two rigid links or braces of unequal length for each leg, connecting the leg and frame, the shorter link being pivoted to the leg nearer the up per end of the leg than the longer link, and said links being pivoted to the frame on opposite sides of the leg when the leg is in supporting position, substantially as set forth.

In testimony whereof I have signed my. name to this specification, in the presence of two subscribing witnesses, on this 4th day of May, A. D. 1887.

HERMON W. LADD.

Witnesses:

A. H. SPENCER, ELIHU G. LooMIs.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4444124 *Oct 26, 1981Apr 24, 1984Howe Furniture CorporationFoldable trestle type table
US4658735 *Jun 16, 1986Apr 21, 1987Krueger, Inc.Folding table
US5562051 *May 26, 1994Oct 8, 1996Steelcase, Inc.Folding table leg construction
US5636578 *May 25, 1995Jun 10, 1997Steelcase, Inc.Folding table leg construction
US5913271 *Oct 14, 1997Jun 22, 1999Lloyd; John T.Collapsible massage table
US6076472 *Jul 17, 1998Jun 20, 2000Lloyd; John T.Collapsible table
US6431086Jun 19, 2000Aug 13, 2002John T. LloydCollapsible table
US6928934 *May 8, 2003Aug 16, 2005Edward ZhengFoldable table with four bar link
US7063025 *Apr 9, 2004Jun 20, 2006Lifetime Products, Inc.Table with foldable legs
US20040221773 *May 8, 2003Nov 11, 2004Edward ZhengFoldable table with four bar link
US20040255826 *Apr 9, 2004Dec 23, 2004Kent AshbyTable
US20050087958 *Nov 15, 2004Apr 28, 2005Ames True Temper, Inc.Collapsible wheelbarrow
Classifications
Cooperative ClassificationA47C17/32