US66984A - miller - Google Patents

Description

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AM. PHOTO-LITRO. CD. N.Y. (OSBDRNE'S PROCESS.)

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TO ALL WHOM IT MAY CONCERN:4

Beit known 'that I, L. H. MILLER, oi the city and county of Baltimore, State of Maryland, have invented a. new and useful Improvement in Fire and Burglar-Proof Safes; and I do hereby declare that the following is a'full, clean-and exact description thereof, reference being had to the accompanying drawings, making a purt of this specification, in which- Figure .1 is a view of the back or inside part of a safe-door and door-frame, with the inside plate removed from the door.

Figure 2 is'a, vertical cross-section through the door-frame, showing the recesses therein for receiving the bolts.

Figure 3 is a section through the-door and its frame taken in the plane :c 2:.

Figure 4 isl a perspective view, show-ing the recesses in -the door-frame for receiving the bolts.

Similar letters of reference indicarecorresponding parts in the several iglxres.

This invention and improvement in re-proof safes is designed to render it impossible to successfully open a safe by the use of gunpowdcr, by so constructing the bolts and applying them to the safe-door that there shall not be lspaces left about the bolts or locks for receivingI gunpowder. as will be hereinafter described.

To enable others skilled in the art to understand my invention, I will describe its construction and operation.

In the accompanying drawings, A represents the doorfra|ne, and -B the hinged door of a. fire-'proof safe of Aany of the well-known forms of construction. C represents the lock-frame or box containing the lock mechanism; and C represents an arm, which projects from the lock-frame, and which receives a vibrating movement.

for locking and unlocking the safe-door, A short stud, a, which projects from the arm C', enters an oblong slot,

which is made through an arm, D, projecting at right angles lfrom a plate, E, which is confined between the face-platel B of the door B and an innerv lining, F, as shownin tig. 1.' The plate E is arranged to slide freely in a. plane parallel to the face B of thedoor, controlled of course by the lock mechanism in the case C, and

from the outer face of this plate the two locking bolts b b project, and pass through oblong slots which are made through the face I3 of the'door. The plate E, upon which the bolts 6 are formed, serves as a means for closing the slots through which these bolts pass, and also as a'means of strengthening the bolts and, moving them in a-plane parallel to the surface of the door, from whichthey project. By this arrangement and constructio'n o f bolts it will be seen that the entire space within the door-plates can be Jfilled, as indicated by the red linesin iigs. and 3, thus leaving no vacant space behind the bolts in which powder or anything could be introduced for blowing open the safedoor. In the inner face of the doorf`rame A recesses g g, of an L-shape,

are formed for receiving and holding the bolts b b, as indicated in red in iig. 2. These L-shaped recesses are arranged so us to allow the bolts to freely enter and leave their horizontal portions when the door is unlocked and swung open and closed. W'hen the door isclosed and unlocked, the bolts will lie in said horizontal portions of the L slots, so that by manipulating the. lock so as to more the bolts b b downward, these bolts will cuter the vertical portions of said slots, as shown in red in iig. 2, and secure the door fast.

I do not desire to 'confine this invention to any particular construction of lock mechanism, as any of the, well-known check locks may be employed by a slightA modilication which will admit of a sliding movement being communicated to the bolt-carrying plate E, or its equivalent. In the application to {ire-proof safes of that class of locking-bolts which slide at right angles to that face of the door to which they are applied, spaces must necessarily be left at' both ends of these bolt-s to allow of their being shot back and forth into and out of the recesses which are formed in the door-frame. I avoid the necessity for leaving spaces, as above explained, by securing, to or forming on a. closing-plate or guard the bolts b b, and arranging such bolts so'that they can only be moved in a plane parallel to that face of the door from which they project, employing, in conjunction therewith, the L-shaped slots, or their equivalents, `for receiving these bolts, as above explained.

Having described my invention, -what I claim as new, and desire to secure by Letters Patent, is y 1. Soarranging the bolts or fastenings of a fire-proof safe-door, as to avoid spaces or chambers about the bolts o r lock in which powder or other explosive substance might be used to open the safe, said object being eifected by means substantially as described.

2. Applying the bolts Iz b to a sliding guard-plate, E, which is'enclosed within the safe-door, so as to move in a plane parallel, or nearly so, to the plane of that face of the door from which the said bolts project, in combination with the slots g in the door-frame, substantially as described.

L. H. MILLER,

Witnesses:

ALLEN E. FonREs'raR, WM. D. MILLER. Jr.

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