US1740888A

US1740888A - Fireproof door

Info

Publication number: US1740888A
Application number: US200544A
Authority: US
Inventors: James L Davidson
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-06-22
Filing date: 1927-06-22
Publication date: 1929-12-24
Anticipated expiration: 1946-12-24

Description

Dec. 24, I929. J. 1.. DAVIDSON FIREFROOF DOOR Filed June 22. 1927 2 Sheets-Sheet IN VEN TOR. James L. flaw/0500.

A TTORNE YS.

J. L. DAVIDSON FIREPROOF DOOR Dec. 24, 1 929.

Filed June 22. 1927 2 Sheets-Sheet 2 IN VENTOR.

(kW/e5 L. Dav/0600.

A TTORNE YS.

Patented Dec. 24, 1929 UNITED STATES PATENT OFFICE FIREPROOF DOOR Application filed June '22, 1927. Serial No. 200,544.

This invention relates to safes, cabinets, and the like, which are of fire proof nature, the said devices aforesaid likewise utilizing a fire proof door.

The invention has for an object the provision of a fire proof safe or cabinet having a door or curtain which when opened is enclosed within the safe or cabinet whereby said cabinet or safe may be placed in restricted areas for use. The ordinary safe or cabinet is provided with a door which normally swings outwardly and as a consequence uses space. The present type of door by being enclosed within the safe or cabinet does not use outside space.

A further object is the provision of a door or curtain for cabinets which is easy to operate. foolproof, inexpensive of manufacture and fireproof.

With the above and other objects in view, the invention consists in a novel and useful provision, construction, formation and relative arrangement of parts, members and features all as detailed in certain embodiments in the accompanying drawings described generally and more particularly pointed out in the claims.

In the drawings:

Figure 1 is a perspective view of a safe emhodying the improved door or curtain;

Figure 2 is a cross sectional view on the line 2-2 of Fig. 1;

Figure 3 is a vertical sectional view of the device;

Figure 4 is an enlarged cross sectional detail illustrating the manner in which the door is hung within the safe or cabinet;

Figure 5 is a transverse sectional view on the line 5-5 of Fig. 3, illustrating the method of hanging the door or curtain;

Figure 6 is an enlarged cross sectional View of portions of the door;

Figure 7 is a cross sectional view similar to Figure 2, the door being closed;

Figure 8 is a fragmentary transverse sectional view illustratingmeans for limiting movement of the door in one direction; and

Figure 9 is an enlarged fragmentary vertical sectional view of one of the-members of 60 the door.

Corresponding parts in all figures are designated by the same reference characters.

Referring with particularity to the drawings, the improved safe or cabinet or the like is designated as an entirety by A, of which a is the body and b the door .or curtain. The body, in the present instance, includes exterior and interior walls, 1 and 2 respectively, spaced apart and confining therebetween some nonconducting filling 3. One side of the body is provided with an entrance or opening at. whereby access may be had to the interior or compartment portion 5 of the body. The compartment may have within the same a stack of drawers 6, or any other means adapted to hold objects, the drawer fronts in the present instance facing the opening or entrance 4.

The door or curtain b is arranged to be confined at all times within the body of the safe. The door comprises one or more members 7 As all of said members are substantially duplicates one of the said members will be described, like reference members applying to the others thereof.

Member 7 includes spaced front and rear walls 8 and 9 and side walls 10 and 11. The side walls are integrally formed with the front wall 8 and one of said side walls 10 is formed with a protruding or tongue portion 12, while the side wall 11 is formed with a groove 13. Said side walls likewise extend beyond the confines of the wall 9 to provide one or more knuckle portions 14. The wall 9 is formed with

flanged ends

15 and 16, which are secured to the side walls 10 and 11 respectively, for the purpose of bracing the knuckle members 14, and for confining insulating material if any. In the present instance the member 7 is elongated. the length thereof depending upon the interior dimensions of the compartment. The space included between said walls is filled with some nonconducting filling 17 Likewise said member 7 provided with top and

bottom end walls

18 and 19 respectively. A carriage member designated generally as 20 is provided, in the present instance, for each member 7, said carriage member includes a. bracket 21 transversely secured to the top end of the member 7 and extending outwardly from one side of said member 7. This bracket is provided with a roller bearing 22,v

partially enclosed by suitable housing 23. A hanger 24 is secured to the body a and within the compartment portion 5. This hanger is substantially Z-shaped in cross section, one leg of which is secured to the top inner wall of the body, and another leg of which is provided with a trackway 25 upon which the roller 22 rests. This hanger in part substantially parallels the front and side walls of the body, as shown at 26 and 27, the hanger being curved at 28 where a change is made in the line of direction thereof. The door or curtain contemplates, as stated, a plurality of the members 7, and the knuckle in Fig. 2, by

portions of two adjacent members 7 are adapted to align so that a pintle 29 may be passed therethrough to hold the knuckles in working relation. This-pintle or pin extends beyond the confines of the endmost knuckles of said members 7 as shown at 30 and 31. These end portions of the pintle are adapted to be received within the channel portions of

channel members

32 and 33.

The interior wall 2 is formed with a longi-' tudinal grooved portion 34,. and said wall is likewise formed with a bevelled portion at 35. The wall 10 of the leading member 7, shown at 36, is not provided with knuckle portions 16. The last of the members 7 is'provided with a. longitudinal wedge shaped member The operation, use and advantages of the I device just described are as follows:

Assuming that a plurality of said members 7 are joined together by means of pintles 29, and the said door is in the position shown asping said door by inserting the fingers within a finger groove 38, in the leading member 7, the said members 7 will travel upon the trackway 25, and the leading member 7 being received within the groove or channel portion 34, when the door finally closes entrance within'the compartment of the body. This position for the door is shown in Fig.7 and it will be noted that the tongue of the following member (7 is received within the groove of the leading member 7 in each instance.- Furthermore it will be ob- To open the door the members 7 are pushed backwardly and they will travel alongthe trackway to theposition substantially as shown in Fig. 2. When the dooris closed the said door may be locked by means of the member shown at 39, which, in the resent instance, comprises a permutation lock aving an operating member 40 exterior of the body and an interior part provided with a bolt 41 adapted to engage thesaid wall of the last member 7 as shown at 4:2. The channel members for the pintles act to hold the door in position and against swinging movement and yet do not bind the door when'the same is moving. When the door is closed it cannot be moved inwardly due to the fact that the pintles are received within the bottom chan-' formed by the guides, the weight being carried by the trackway. The wedge 37 in cooperation with the wall 35 securely prevents entrance at this zone asno spacing is permitted.

It is obvious that where space must be utilized {main is not convenient for the door to swing outwardly that a safe or cabinet constructed in accordance with my invention is extremely useful and yet provides a device which is practically fire proof. There are very few parts and practically no parts to get out of order.

The construction of the body is such that the front wall thereof overlaps in part the said door when the door is closed, as illustrated in Fi s. 3 and 4.

,As a brie summary of the invention, the same comprises a plurality of hollow sections which may or may not be filled with fireproofing material. The walls of such sections are preferably quite thin. Depending on the weight of the door, certain of the carriages for the sections may be skipped. Thus I do not'wish to limit my invention to a lurality of sections all of which-are provi ed with carriage members, as one or two carriages may sufiice. These sections are hingedly rethey may make turns of short-radius as has been pointed out. The door is adaptable for various uses other than in safes, and may be moved vertically as well as horizontallyas shown.

It is obvious that various changes, modifications and variations may be made in practising the invention in departure from the particular showing of the drawings without departing from the truespirit thereof.

I Having thus disclosed my invention, I

claim and desire Letters Patent:

1. In a safe, a body, a door within said body, said door comprising a plurality of hingedly related sections, a hanger secured to the body, anti-friction means carried by said hanger and secured to said sections, each section being provided with a plurality of knuckles adapted to interlock with adjacent sections, pintles adapted to be passed through said knuckles to provide said interlock between adjacent sections, and guides for receiving ends of said pintles whereby said door during its movement on said hanger is guided as to travel.

2. In fire proof door construction, a plurality of sections, each section including a front and a rear Wall spaced apart with interconnected side Wall members, said side walls extending beyond the rear wall and shaped to provide spaced hinge knuckle portions whereby the several sections are hingedly connected for joint operation.

3. I body, said door comprising a plurality of sections, a hanger within the body, rollers carried by said hanger and secured to said sections for supporting the door in said body, means interlocking adjacent sections, and means for guiding the last means to control direction of travel of the rollers secured to the.

sections during movement thereof on said hanger.

4. In a fireproof door construction, a plurality of sections, each section including a front anda rear wall spaced apart with interconnected side wall members, and members extending beyond the rear wall and shaped to provide spaced hinge knuckle portions, whereby the several sections are adapted to be hingedly connected together for joint operation.

In testimony whereof, I have signed my name to this specification.

JAMES L. DAVIDSON.

n a safe, a body, a door within said