US1238427A

US1238427A - Safe-door.

Info

Publication number: US1238427A
Application number: US10906016A
Authority: US
Inventors: Moses Mosler; Carl Bartels
Original assignee: Mosler Safe Co
Current assignee: Mosler Safe Co
Priority date: 1916-07-13
Filing date: 1916-07-13
Publication date: 1917-08-28
Anticipated expiration: 1934-08-28

Description

M. MOSLER & C. BARTELS.

SAFE noon. APPLICATION FILED JULY 13,1916

4 Patented Mg. 28, 191'? Moses MOS/6B 60M) Barn m Inventors Td AE MOSES MOSLER, OF CINCINNATI, AND CARL BARTELS, 0F HAMILTON, OHIO, ASSIG-NORS TO THE MOSLER SAFE COMPANY, OF NEW YORK, N. Y.

SAFE-DOOR.

Specification of Letters Patent.

Patented Aug. 28, 1917,.

The present invention has reference to a safe-door, integrally cast of unmachineable metal, such as manganese steel, and the invent-ion will be readily understood from the following description taken in connection with the accompanying drawing in which Figure 1 is a cross-section in the plane of line a of Fig. 2, of a safe-door exemplifying our invention:

Fig. 2 a rear view of the door, shown as being in rectangular form, portions appearing in the plane of line b of Fig. 1: and

Fig. 3 a similar rear view of the door, shown as being in circular form.

In the drawing 1, indicates the safe-door, assumed as being integrally cast of unmachineable metal, such as manganese steel, the door being illustrated as having its perimeter provided with steps, as usual:

2, a bolt-frame member integrally cast with the door and projecting rearwardly from the stepped portion of the door:

3, a rearwardly open recess formed at the rear face of the door and margined by the bolt-frame 2:

4, a back-plate, of machineable metal, disposed within the rear recess of the door and firmly secured against the rear face of the door and margined by the bolt-frame member 2: a

5, a bolt-frame member carried by the back-plate inwardly of the boltframe memher 2 which is cast with the door:

6, rivets serving to typify means for securing the back-plate to the back of the door: and

7, bolts sliding in bolt-

frame members

2 and 5.

The back-plate 4 not only carries one of the bolt-frame members, but, being of machineable metal, it serves for the reception of bolt-moving mechanism, locks, &c.

The backplate may be secured firmly to the back of the door and within the rear recess by any appropriate means, the typical means illustrated consisting of studs integrally cast upon the back of the door and projecting through apertures in the backplate and riveted at the rear surface of the back-plate.

While the term unmachineable metal may not be strictly correct and definite, it is nevertheless a term ordinarily applied to such material as manganese steel castings employed in safe construction, and this term is of frequent employment in patents relating to safes involving manganese steel, and the term is well understood in the art. We employ the term in the present case as meaning a metal, such as manganese steel for instance, which is not susceptible of being treated, to any practicable degree, by any of the machining processes employed in shops.

We claim:

1. In a safe door structure, the combination of a door casting of unmachineable metal having on its rear face an integral bolt flange near its perimeter, said flange outlining a recess, a back plate of machineable metal located entirely within said recess, means for securing said back plate to the door casting, said means being located within said recess and independent of the bolts, another bolt flange carried by said back plate and a plurality of bolts each pass ing through alined holes in the two bolt flanges.

2. In a safe door structure, the combination of a door casting of unmachineable metal having near the perimeter of its rear face an integral bolt flange outlining a re cess, the door casting also having integral rivets within said recess, a back plate of machineable metal located entirely within said recess, the back plate being provided with rivet holes to receive said rivets, the back plate being secured by the rivets and independently of the bolts, another bolt flange carried by said back plate, and a plurality of bolts each passing through alined holes in the two bolt flanges.

MOSES MOSLER. CARL BARTELS.

Witnesses:

G. M. GOLDSMITH, HENRY G. Mosmrn.

flopiea of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.