US2623247A

US2623247A - Air raid shelter

Info

Publication number: US2623247A
Application number: US209136A
Authority: US
Inventors: Tarjan Istvan
Original assignee: Individual
Current assignee: Individual
Priority date: 1951-02-02
Filing date: 1951-02-02
Publication date: 1952-12-30
Anticipated expiration: 1969-12-30

Description

Dec. 30, 1952 l. TARJAN AIR RAID SHELTER Filed Feb. 2, 1951 INVENTOR /STVA/v 72H-MN TTO/Vfy ll Z0 Patented Dec. 30, v 1952 UNITED STATES PATENT OFFICE AIR RAID SHELTER Istvn Tarjn, Chesapeake, Ohio Application February 2, 1951, Serial No. 209,136

2 Claims.

This invention relates to air raid shelters. More particularly the invention pertains to means for converting cellars and other suitable rooms into bomb and explosion prooi enclosures which while protecting the occupants against the effects of an explosion in said rooms are nevertheless adequately ventilated. Raid shelters are usually provided with one or more doors.

It is an object of the present invention to provide in addition to the usual means for entering and leaving the shelter novel emergency means for this purpose. A further object is to provide an emergency exit means which may be resorted to in the event the main exit becomes blocked. Another and important object is to provide an emergency exit means which while aiording protection to the occupants of the room against the eiiects of an external explosion, such as the bursting of a bomb, also permits fresh air to circulate within the room for the comfort of the occupants. It is an important object to provide an emergency exit which while adapted to withstand the force oi an external explosion is nevertheless adapted to be easily and quickly opened.

Other and further objects and the advantages of the invention will be brought out as the following specication is read in conjunction with the drawings forming a part thereof in which:

Figure l is a front elevation of an emergency k exit embodying my invention.

Figure 2 is a vertical cross section of Fig. 1, on the line 2 2.

Figure 3 is a rear elevation, partly in section,

of the emergency exit device as seen from the room interior.

Fig. 4 is a vertical section of Fig. 3, on the line 4--4.

Figure 5 is a plan view of Fig. 3, in the line 55.

Figure 6 is a perspective view of one of the elements composing a part of my invention.

In the drawings 'l is a side wall of the room or enclosure and into the wall is built an upper guide member 8 having a U-shape groove formed in its lower face designated as 9. A similar guide member I0, positioned directly below and spaced from guide member 8, is provided with a U-shape slot in its upper face. Secured within the guide space afforded by the two U-shape grooves, are the end spacer members I2 and i3, which are spaced apart to provide an exit or escape opening for a person. Normally this longitudinal opening is occupied by a plurality of close-fitn ting, closure elements I4 which are adapted to be trackway to completely fill the space between the spacer members I2 and I3.

To permit the insertion and removal of the closure elements I4, as shown in Fig. 3, a key-block I5, which is fitted in a groove I6, cut below one of the closure elements I4, is adapted to be removed, whereupon as said elements are moved into registry with the space from which said key-block has been withdrawn, they drop downwardly into this opening, are thus disengaged from the guide members and may be easily and conveniently removed when it is desired to open the emergency exit. And, reversing the steps, the closure elements may be re-inserted, one by one, and moved to the right until the space is filled theree by whereupon the key-block is put in place to lock the elements in position. For convenience in handling the closure elements l they may be provided with a suitable handle Il and to insure relatively tight closure, as shown in detail in Fig. 6, the elements I4 may be provided with a tongue I8 on one face and a groove I9 in the opposite face so that the said elements interlock when assembled longitudinally in a well known manner. Also as shown in Fig. 6, a groove 20 is formed in the abutting faces of the elements I4, this groove being substantially S-shape, so that when two of the elements are brought together air may enter at 2l and leave through 22. A purpose of this S-shape channel is to oifer resistance to the velocity and pressure of an explosive shock-wave thereby nullifying the effect on the occupants of the shelter while at the same time affording ventilation thereto. Further, as explained, this means while affording safety also provides an easy means of escape.

Having illustrated and described a preferred i embodiment of my invention I desire it to be understood that my prime object is to provide an emergency exit for bomb shelters and the like which while aording protection against the direct action of a bomb explosion or the like also permits air circulation for ventilation and at the same time provides an easy and convenient means of escape in an emergency. Changes may be made in the construction of my device without departing from the spirit of the invention as set forth in the claims.

I claim as my invention:

1. 1n an emergency opening in a bomb shelter having a frame with upper and lower grooves for receiving closure elements, the combination of a plurality of elongated closure elements adapted to be inserted in the frame with the upper and lower ends disposed in said upper and lower grooves, longitudinally disposed tongues upon one edge of each closure member and each member having a longitudinal groove for receiving the tongue of the next adjacent closure member, the closure members as a group having groove portions complementing each other upon their mutually facing sides forming openings upon both sides at a different predetermined level on one side with respect to the other, and said closure members yalso having longitudinally disposed groove portions upon said mutually facing sides thereof interconnecting the rst mentioned groove portions to complement each other and form ducts interconnecting the openings of one level with the openings at the other level within the outline of said closure members.

2. Closure elements for an opening in a bomb shelter according to claim l, wherein the openings upon the outer side of the closure members as a group arey located at a high level and the openings on the inner side of the same group are located at a 10W level, so that the openings upon one side are completely out of line horizontally with respect to the openings on the other side.

ISTVN TARJAN.

REFERENCES CITED The following. references are of record in the le of this patent:

UNITED STATES PATENTS