US296643A

US296643A - Bmoby stockwell

Info

Publication number: US296643A
Authority: US
Publication date: 1884-04-08
Anticipated expiration: 1901-04-08

Description

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UNITED STATES PATENTy OFFICE.

EMORY STOCKWELL, lOF STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE & TOWNE MANUFACTURING COMPANY, OF SAME PLACE.

SAFE-DOO R.

SPECIFICATION forming part of Letters Patent No. 296,643, dated April 8, 1884.

' Application filed February 27, 1883.

To all whom t may concern:

Be it known that I, EMonY STOGKWELL, of Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Safe and Vault Doors,

of which the following is a specification.

The object of my invention is to simplify, cheapen, strengthen, and otherwise materially improve the construction of safe or vault doors. Heretofore it has been customary to castthe iianges or frames of safe-doors in one piece, and to secure the front plate of the door thereto. In the style of safes where the bolts and lock are placed back of the filling, a curb or recess is usually formed in the rear face of the door for the reception of the lock and bolt-work. This structure has heretofore been composed of several plates suitably secured to the flanges or frame of the door. This method of manufacture involves the making of a number of separate pieces, and the subsequent labor of fastening them together, and, among other defeet-s, the construction leaves the side flanges, which are preferably thin, insufficiently sup- 2 5 ported against lateral strain. Vith the ordinary construction, also, it is not practicable to so iill the door that the inside plate will rest against the filling, which is therefore not properly held in place. Under these circumstances 3o it is liable to flake off and to interfere with the proper working of the bolt-work and the lock. The wet lling, which is ordinarily used for such doors, swells more or less,and is liable to cause the flanges or frame to spring outward and distort or burst the door.

My invention consists, first, in casting the door frame or anges and the curb or recess, which is also the bolt-supporting plate, in one piece; and, second, in extending the casting 4o entirely across the door-frame, so as to firmly brace and strengthen it.

rIhe advantages of my improvements are, the reduction in the cost of manufacture by decreasing the number of parts, and the corre- 4 5 spending diminution of the labor of assembling them. The strength of the door is greatly increased, as the bolt-supporting plate or curb extends from flange to iiange across the door and braces them against lateral strains, caused (No model.)

by the swelling of the filling or otherwise, and 5o the flaking off or sifting out of the filling, which would not only beinj urious to the working of the lock, but would impair its own integrity, is prevented. The security of the safe is also increased, and as thevlocl: and bolts are attached to a part of the frame itself, they cannot so readily be driven off as where the boltsupporting plate is a separate piece.

In the accompanying drawings, Figure l is a plan view of the inside of my improved safe- 6o door. Fig. 2 is a section on the line 2 2 of Fig.

l; Fig. 3, a plan View of the inside of a door, partly broken away to show parts beneath the, surface, and Fig. 4L is a section on the line Lia of Fig. 3.

The frame or flanges of the door A and the curb or recessed bolt-supporting plate B are cast in one piece, preferably of the general contour illustrated in Fig. 3 of the drawings-that is, with the elongated vertical chamber 0r re- 7o cess F near the edge of the door for the reception of the bolts F and carrying-bar G, and a lateral recess or extension, BQ in said chamber,in which the tongue H ofthe bolt-work and the dogging devices-are placed. The sides C ofthe curb or recess B preferably constitute guides for the bearing-arms C2 C2, which project laterally from the tongue H of the boltwork. The throw of the bolt-work is limited by stops C on the tongue of the bolt-work,and thebolt-supporting plate orbottom of the curb.

D D represent the sleeves of the bolt-work and lock-spindles, and E the independentlyattached front plate of the door. The web or brace b extends from the curb to the opposite 8 5 side of the framing, and forms a part of the same casting. The curb for the bolt-work and lock is sunken withintherear face of the door, so that the filling can come up flush with the inside of the plate and curb, and the inside plate of the door can be placed over them and bear firmly against the filling at allpoints, thus giving the greatest attainablethickness of lilling, and consequent security against re.

I prefer to make the curb and cross-brace or supporting-plate of the shape illustrated in the drawings, because it is more economical and at the same time gives ample strength. It is obvious, however, that While such a construc- 2. The combination, substantially as set tion possesses material advantages, it is not a forth, of the frame or anges, the plate cast in necessary accompaniment of my invention. one piece therewith,and provided With a curb I do not claim asafe-door casting having the or recess for the reception of the lock and bolt- 5 flanges ofthe lock-plate cast together in one Work, and the brace or reduced portion of the 2o piece, the plate being formed With a curb to casting b,Which extends from the curb to the receive the lock and bolt-Work. opposite flange of the door-frame.

I claim as my invention- In testimony whereof I have hereunto subl. The combination, substantially as set scribed my name this 29th day of January, A. Io forth, of the door-flanges and the plate cast in D. 1883.

one piece therewith, the plate being` provided with a lock-curb and stops, and guides for the EMORY STOOKWELL' bolt-Work, the Whole being so arranged that WVitnesses: the lling of the door may be Hush with the 4 SOHUYLER MERRITT, 15 inside of said plate and curb. GEO. E. VHITE.