US817748A - Drop and cellar-door hinge. - Google Patents

Description

No. 817,748. PATENTED APR.17,`196.

W. 1. L H. D. BOULDBN. ND GELLAR DOOR'HINGE.

APPLICATION FILED MARA@ 1905.

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WlLLlM M. BOULDEN, WlLLlAM I. BOULDEN, AND HERBERT D.

BOULDEN, OF CHESTER, PENNSYLVANIA.

DROP AND .CLLAR-DOOR HlNGE.

speeineation 'of Lettersratent.

Patented April 17 Application filed March 16,1905. Serial No. 250.498.

To all whom, it may corwcrn:

Be it known -that we, WILLIAM M` BOUL- DnN, WILLIAM l. BOULDEN, and HERBERT D. BOULDEN, citizens of the United States, re siding at Chester, in the county of Delaware and State of Pennsylvania, have invented certain new and useful Improvements in Drop and Cellar-Door Hinges; A and we do declare the following to be a full, clear, and'eX- act description oi' the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention. relates to a drop and cellardoor hinge.

The object of the present invention is to improve the construction of hinges and to provide a simple and comparatively inexpensive one of great strength and durability, designedv particularly for use on cellar-doors and adapted when the cellar-doors are opened to permit the weight of the same to rest upon the supporting-frame and capable y when the doors are closed of enabling the same to present a smooth exterior to avoid obstructions and to prevent pedestrians from stumbling or falling.

A further object of the invention is to pro` vide a device of this character capable when the cellar-door is opened of automatically lookin(T the same securely in such position to prevent the door from being accidentally closed.

With these and other objects in viewthe invention consists in the construction and novel combination and arrangement of parts hereinafterfully described, illustrated in the accompanying drawings, and pointed out in theclaims hereto appended, it being under# stood that various changes in the form, proportion, size, and minor details of construction within the scope of the claims may be resortedv to without departing from the spirit. or sacrificing any of .the advantages of the invention,

In the drawings, Figure l is a perspective view of a pair oi? cellar-doors provided with drop-hinges constructed in accordance with this invention,`the doors being open. Fig. 2 is a transverse sectional view of the same, the doors being closed. Fig. 3 is a transverse sectionalview of one side of one ofthe cellardoors and the supportin -rame or base, the parts being arranged as s own in Fig. 1. Fig- 4 is a detail perspective view of one of the fixed hinge members. Fig.A 5 is a detail perspective view illustrating another form of fixed hinge member.

Like numerals of reference designate correspending parts in all theigures of the draw-` ll'lCS:

tl desi ates a rectangular supportingframe oriu any suitable material and preferably consisting of angle-iron sides and ends having horizontal VYtop ilanges or portions 2 and ver tical portions or ilanges 3, arranged at the outer edges of the horizontal top portions or flanges 2, as clearly illustrated in Figs. 2 and 3 of the drawings. The an le-iron sides and ends may be formed integra with `each other, as illustrated in Fig. l of the drawings; but the frame may be constructed in any other desired manner, as will be readily understood.

The su porting-frame or base receives a pair ofce lar-doors 4, consisting,`p referably, of plates of iron and adapted when closed to rest upon the upper faces of the sides and 4ends of the frame or support, as clearly indicated in Fig. 1 of the drawings. The cellardoors are connected withthe frame or support by interiorly-arranged hinges, each consisting of a fixed member 5 and a movable member 6. The Xed member may, as illustrated in Fig. 4 of the drawings, consist of an attachment-plate and a pair of perforated lugs, forming ears or eyes 7 for the reception Y ol a pintle 8, which connects the movable hinge member to the fixed hinge member. The movable hinge member consists of a substantially U-shaped bar or iece havingone end perforated to receive t e pintle and arranged between the eyes or e'ars 7,- and the other end of the bar or piece is bent'outward approximately at right angles to form an atlower face of the door 4, as clearly' shown in Fig. 2 of the drawings. The attachment arm or portion may be secured by rivets or other suitable fastening devices to the door,

and the U-shaped portion o bend is adapted to clear thesupportingrame or base when the cellar-door is opened. The eyes or ears are located atav point beneath the median line of the horizontal flange orportion 240i the sides of the base or supportingfframe, and

ase. designed to be constructed of ,tachment-arm' 9, which is secured to the i when the cellar-door is opened the lll-shaped body portion or bend oi the movable hinge member extends to a point above the horizontal lange or portieri 2 and permits the cellardoor, as illustrated in Fig. 8, to rest upon the sup\p ortingfraine or base, whereby the joint of the hinge is relieved of strain. Instead of employing a vfixed hinge member of the form illustrated in Fig. 4 of the drawings a bar or' plate l() may be employed for hinging the movable members to the supporting-frame or base. T he bar or Yfra ine 10, one-half of which is illustrated in Fig. 5 of.the drawings, is provided with a terminal pivot 11, adapted to engage the eye or perforation of the movable member. By this construction a single bar or piece may be employed for connecting the two movable members of av cellar-door to the base or supportingframe. The hinges by being interiorly arranged permit t'he cellardoor to present a smootheiterior, so that there are -no projections over which pedestrians4 might stumble or fall.

Each cellar-door is provided at its inner or lower face adjacent to its hinged edge with a slidable bolt 12,' which when the cellar-door, is opened is adapted to automatically engage the base or supportingrame, whereby the v cellar-door is'firmly locked in its open posi tion and is effectually prevented from being accidentally closed. Each side of the base or supporting-frame is provided with a perfo-v ration 1,3, arranged to be engaged by the slid able bolt, as clearly illustrated in Figs. 1. and 3 of the drawings. The slidable bolt, which may be mounted on the cellar-door in any suitable manner, is provided with a suitable handle'for enabling it to be withdrawn from sian/ie engagement with the base or supportingframe when it is desired to close the cellardoor..

The base or supporting-frame is provided at its sides and endswlith projecting lugs 14, extending horizontallyffrom the base or sup-v porting-frame to facilitate the mounting oi' the saine in position at a cellar-opening. These lugs are preferably formed by E...-shaped plates or pieces secured to the vertical flanges or portions of the sides and ends of the base or supporting-frame.

Having thus fully described our invention, what we claim as new, and desi-re to secure by Letters Patent, is-.

l. In a device -of the class described, the combination with a base o r support, and a door, of an interiorlydisposed hinge arranged to swing the door in opening over the base or support, and a locking device mounted on the door and arranged to automatically engage the exterior of the base or sup port for locking the door in its open position.

2. in a device of the class described, the combination with a base or support, and a door, of a hinge connected with the door and arranged to swing the door in opening over the base or support, and a slidable bolt mounted on the dooi and arranged to engage the exterior of the base or support automatically when the door is open.

' in testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

WILLIAM M. BGULDEN.

WILLIAM I. BOULDEN. HERBERT D. BUULDEN. /Vitnesses:

Crnis. L. WILLIAMS, FRANK Grim,

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