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Publication numberUS1687538 A
Publication typeGrant
Publication dateOct 16, 1928
Filing dateJun 5, 1925
Priority dateJun 5, 1925
Publication numberUS 1687538 A, US 1687538A, US-A-1687538, US1687538 A, US1687538A
InventorsBradbury George E
Original AssigneeBradbury George E
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1687538 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Oct. 16, 1928.

G. E. BRADBURY FASTENING Filed June 5, 1925 Y Patented ou. 16, 192e.` y



Application filed June 5, 1925. 'semina 35,1146.

rIhis invention relates'to a door `fastening orlatch and particularlyto one which serves to fasten into the closed positiona pair of swinging closures. It has forone object t provide a. latch which will become automatically effect-ive upon the closing of the doors, so that the doors may be fastened and closed from the outside automaticallyas they are swung to the closed position.v Other objects m will appear from time to time throughout the specification and claims.

My invention is illustrated more or less diagrammatically in the accompanying drawings, wherein:

Figure 1 is an elevation of the doors and fastener taken from the inside with the parts fastened closed;

Figure 2 is a cross section taken on line 2-2 of vFigure 1';

Figure 3 is a detailed cross section on an enlarged scale showing the latch bar taken on the line8w-3 of Figure 1;

Figure 4 is a detailed cross section taken on line 4 4 of Figure 1. y

y Like parts are designated by like characters throughout.

f A is a door frame with side and top members. It is positioned preferably in a building which is indicated diagrammatically at A1. A2 is the floor of the building.

B is one half of the swinging door. It is hinged to the frame A or lto the building A1. @B1 is a similar swinging door provided on its free edge with a strip B2 which overlaps the free edge of the door B when the two are in the closed position. The twordoors are mounted so that their lower edges extend slightly below the floor A2 of the building. As shown particularly in Figure 1 the doors when in the closed position abut against the edge of the fioor and also as shown against the edge of the frame A. As a result of this construction when they are closed, they rest against these frames and the floor and are held against excessive displacement inward.

C is a wedge block fastened to the floor B. It is provided with lan outward projection C1 and an inclined cream face C2. The inclined face is Lat the upperend of the wedge .0 block. u

D is a similar wedge block fastened to the door B1. It is provided with a projection D1 and an vinclined face D2. This position is reversed with respect to that of the wedge .5 block C. V

E is a fastening "bar pivotally mounted upon the door B at El. It ymay be swung into theposition shown and in that position its ends ride up upon the inclined portions C2 Dgof the wedge blocks. y I

F isa latch pivoted tothe-member F1 which is secured to the door B1. G is a metal plate fastened to the fastening bar E at the point where the latter would be contacted by the latch F.

Although I have shown an operative dei vice, still it will be obvious that many changesv might be made in size, shape and arrangement of parts without departing inaterially from the spirit of my invention; and I wish, therefore, that my showing be taken as in a sense diagrammatic.

The use and operation of my invention are as follows:

The invention in the form shown is designed as a garage door, although it is not limited to that purpose. When the garage is to be closed, the door B is moved to the closed position and the fastening bar is swung across intothe horizontal position shown. In this position the right hand end of the barrides up onto the wedge block C and is preferably sprung slightly inward away from the inner face of the door. The door B2L is then slammed closed. As this is done the left hand end of the fastening bar contacts the wedge block D and is sprung slightly inward away from the door B1. The latch slips over the fastening bar and engages it, thus holding the doors against outward movement. When the` parts are in this position, the doors cannot be opened from the outside.

I claim:

1. As a means for fasteningin closed positiona pair oflclosures, a fastening bar movably mounted on one of said closures adapted to extend partially across it and the other, a bar engaging latch mounted on the second closure and adapted when the same is moved into the closed positionito engage thebar, and a ypair of wedge blocks mountedv one on the insideof each of such closures, each adapted to engage one end of the fas tening bar when the same is in the fastening position. y f

2. As a'means for fastening in closed positi'on, a pair of closures, apfastening bar pivoted o n one of said closures adapted to extend partially across it and the other, a bar engaging latchinounted on the second closure and adapted when the same is in the said end inward away from the inner fsur-N.y

tace of said closure.

8. As a ineans for fastening,infelosedipd` sition a Vpair of closures mounted to swing against'an abutment, la fastening bar pivoted on one of `safd closures, adapted `to extend `partially across itrand Jthe other, means on the second Closure to limit its nwardinovement, saidmeans adapted tocontaet the yfirst mentioned closure, ,a bar --engaging latch inounteduon thefseeondl olosureiadapted when .thesaineis swung into the Closed position autoinatically toengage the har, and a pair o'i'' wedgebloeks mounted one on the inside of xkeach of such closures, each adapted to engage one end of thefastening bar when the saine isLswung into the fastening position and to bend such end inward away from lthe inner surface yof `such .Closure 'Signed at Chicago, county et .Cook :and

lState-'of- Illinois, this lst dayrof `June, :1925.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5026102 *Dec 11, 1989Jun 25, 1991James PitmanMechanical security device for doors
US5511836 *Mar 15, 1995Apr 30, 1996Murphy; Gerald K.Security device for bulkhead doors
U.S. Classification292/259.00R
International ClassificationE05C21/00, E05C19/00, E05C21/02
Cooperative ClassificationE05C19/005
European ClassificationE05C19/00C3