USRE152E - Improvement in fire-proof safes - Google Patents

Description

n its door being open; a

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` to the interior of the ex UNITED STATES PATENT OFFICE. i

EDWARD HALL AND. JOSEPH L. HALL, OF CINCINNATI, OHIO.

IMPROVEMENT IN FIRE-PROOF SAFES.

nt'No. 6,655, dated August 21, 1649 Reissue No. l5?, dated Specification forming part of Letters Pate December 18, 1849.

To all whom it may concern: y by rivets to the interior and exterior cases. Be it known that we, EDWARD HALL and Anchors m are attaceed to both the interior JOSEPH L. HALL, of Cincinnati, in the county and exterior cases. These project into the of Hamilton and State of Ohio, have invented space between the two cases,

so that when the tsin Firecement which serves as the insulating medicertain new and useful Improvemen s space it firmly attaches Proof Safes, 'of which the following is a full, um is poured into thi clear, and exact description, reference being the whole body of the case together, and by had to the annexed drawings of the same, the great hardness which it speedily attains making part of this specification, in whichrenders this safe more secure than any in Figure 1 is a perspective view of the safe, which any of the previously-used insulating nd Fig. 2 isa horizontal mediums are employed. rEhe advantages resection, the door being shut. sulting from this construction are, first, that The same letters indicate the same parts in the walls of the safe, instead of having a cong siderable portion of their mass of wood, as is Experience has demonstrated that a safe dethe case with all safes made in the usual man1 signed as a depository of books and papers, n er, are composed exclusively of metal andy money, and other valuables should be reucement, thus increasing their resistance to dered as strictly proof against iire, burglars, heat, and rendering them far less liable to beand damp as possible; and by our improvecome damp and thus inj ure the articles inclosed ment we seek to attain the greatest security in them; second, in our safes the doorframe on these three several heads. These several and the door, which is bolted fast to it in requisites are attained in our improved safe locking, are secured to an interior metallic by constructing the interior case or lining of case, which is firmly united to the exterior the safe of iron or some other metallic subcase by anchors embedded in a solid cement, stance instead of wood, as has been previously thus effectually preventing the removal of the done in safes of this description, and in atdoor and its frame by driving in witha punch tachingthe lining so constructed to the dooror cutting off with a cold-chisel the heads of frame by rivets or otherwise in a strong and the rivets found on the face or sides of the safe substantial manner, anchors being attached above, below, and on each side of the door; terior caseandto the whereas in safes of the usual construction the exterior of the interior case, and projecting interior Wooden case does not oppose any obinto the space between the two, this space bestacle to the removall of the door with its frame ing filled with hydraulic cement, thus rmly in the manner above mentioned, as the latter uniting the whole by a solid insulating meis not attached to it, but merely rests against it. dium which possesses the several requisites of The method of connecting the exterior and hardness and resistance to fire and damp in a interior cases by anchors embedded in cement higher degree than any substance previously possesses a great advantage over the method used for the purpose. usually adopted of connecting the two by In the drawings,b 1s of sheetiron and united at the corners by anlent conductors, transmit the heat from the gie-iron, to which the sides vare'irmly riveted exterior case to the interior, whereas by the or screwed. Within this case an interior use of ,anchors the insulating cement in which casing of iron, a, is inserted. This is formed they are embedded prevents the transmission with flanges around its front edge, thus formof the heat from those of the exterior to those ing the door-frame, which is riveted to the ofthe interior case.

, outer case, thus connecting the interior with the exterior; or, if preferred, adoor-frame crete safe, what we claim therein as new, 4and* may be made separate and securely attached desire to secure by Letters Patent, is

' theexteriorcase, formed through rivets or bolts, which, being excel Having thusvdescribed our improved con` 1. Joining the interior and exterior eases by the door-frame, and connecting both casls with the insulating cement by means of t e x y y Y anchors embedded therein, substantially'as l f y herein set forth. l f

2. The employment in chests so joined of Witnesses as to the signature of E. Hall: hydraulic cement as the insulating substance P. H. WATSON, for fire-proof safes or chests, it beingstonger E. S. RENWIUK.

when t-he same is constructed in the manner herein described. v

when concreted than other cements heretofore Witnesses as to the signature of J. L. Hall:-

used for the purpose, thus making a safe of W. F. BRIsCoE superior strength and durability, .especially B. SMITH. 7

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