US1977040A

US1977040A - Gun port closure

Info

Publication number: US1977040A
Application number: US568370A
Authority: US
Inventors: Jr John H Buekers
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-10-12
Filing date: 1931-10-12
Publication date: 1934-10-16
Anticipated expiration: 1951-10-16

Description

.Oct. 16, 1934. J, H. BUEKERS, JR

GUN PORT CLOSURE Filed Oct. 12. 1951 INVENTOR- Patented Oct. 16, 1934 1,977,040

IT -1 s r s 'EPATENT OFF C 1,977,040 I 1 1GU PO "c osn'ar. I v Jen Buekers, Jr., Detroit, r H ermination October 12, i931,'seria1 No. 5613,3910

\ 4 "4 Claims. (Cl.: 9 3 4...-

The present invention pertains to a novel cloample metal' around the same, the rin'g'B has sure for the gun port formed through a wall meminwardly extending lugs 12 and 13 which are acber such as a bullet-proof glass partition in a bank commoda'ted in slots 14 cut in the back ring 5, as or the side of an armored truck. The principal shown in Figure 2. The upper lug 12 is longer object of the invention is to provide a simple and hasa depending stud 15 on which is mounted device of this character, readily opened by the a wire spring 16 coiled at 1'7 around the adjacent thrust of a gun and affording a wide lateral amplistud 11 and having its free ends 18 inserted in the tude to a gun inserted in the device. segments 9 as shown more clearly in Figures 3 and A further object of the invention is to provide a 4. The ends 18 are tensioned towards each other .10 closure which permits a sighting therethrough so that they tend to hold the segments 9 in conand which exerts no downward pressure on the tact with each other and obstructing the opening 7 barrel of the gun, so that a short as well as a long through the ring 3.

gun may be used. I r A pointed rib 20 is formed in the ring 3 at The closure comprises essentially a pair of clothe outer side of the segments 9 and presents a .151 sure members for the port or opening, pivoted conical surface 21 flaring outwardly from the together so that they may be swung relatively to opening. The inner surfaces of the segments 9 each other or together. These members are prefare flattened to form plane surfaces 22 convergerably spherical on the outside and are formed ing forwardly or outwardly as may be seen in with fiat internal surfaces which converge towards Figure 3. Finally, the back ring 5 has opposed 0? the outside. A gun thrust against either fiat surbevels 23 which converge towards the frame face readily finds its way to the joint between the ring 3 as shown in Figure 3. members and'then passes between the members In the use of the device, the segments 9 are against the action of a spring which tends to hold separated for passing a gun 19 therebetween the members closed against each other. On withmerely by thrusting the gun against either of 'g'5fidrawal of the gun, the spring brings the members the surfaces 22. Due to the convergence of the into contact with each other to close the gun port latter, the gun is guided to the joint between the completely. segments and then is forced between them,

The invention is fully disclosed by way of exspreading them apart to the dotted line position ample in the following description and in the shown in Figure 3, against the tension of the 305. accompanying drawing in which spring 16--18. The gun may readily be swung Figure 1 is a rear elevation of the device with laterally because of the pivotal mounting of the the back ring removed; segments on the frame 3 and is permitted a wide Figure 2 is an elevation of the back ring; lateral range by the conical surface 21 and Figure 3 is a horizontal cross section; and bevels 23. i 351 Figure dis avertical cross section. The depending stud 15 which supports the Reference to these views will now be made by spring maintains the closure in a normal cenway of like characters which are employed to tered connection, that is, with the joint in the designate corresponding parts throughout. vertical diameter of the opening. In the ab- The device is applied toawall lwhich is formed sence of such a stud and spring arrangement,

4 ;;with an opening 2 for receiving the device as will the device might be swung open from the outside.

presently appear. The wall may consist of bullet- On spreading the segments by forcing a gun proof glass, as in a bank, or maybe of sheet metal, therethrough, a vertical opening is provided so as on an armored truck. that accurate aim may be taken. It will also The frame of the device comprises a ring 3 be seen that the segments now exert equal pres- 45 fitted in the opening 2 and having flange 4 engagsure laterally in opposite directions against the 10 ing the outer surface of the wall around the openbarrel of the gun, so that there is no undue iming. A back ring 5 abuts the inner end of the pediment to accurate aiming. This arrangeframe ring 3 and engages the inner surface of the ment is to be distin u s d f om other devices wall 1. The ring has tapped bosses 6 on its pewherein a single upwardly opening flap bears 50.;riphery, and the ring 5 has registering holes '7, so down upon the gun obstructing the proper sight that the parts may be bolted together by studs 8. line and in fact prohibiting the use of a short Within the frame ring 3 are mounted a pair of barrelled revolver. A bullet fired against the substantial octopartite segments 9 which have spherical outer surface of the closure will obtheir ends pivotally attached to the frame ring by viously glance off except in the single case where -.'studs 11. In order to take the studs and provide it might strike the vertical joint.- In this as well as in other cases, there is suflicient metal in the lugs 12 and 13 behind the studs 11 to take the impact.

Although a specific embodiment of the invention has been illustrated and described it will be understood that various alterations in the details of construction may be made Without departing from the scope of the invention as indicated by the appended claims.

What I claim is 1. A gun port closure comprising a frame member defining an opening, a pair of closure members pivoted to each other and to said frame member and covering said opening, and spring means tending to hold said closure members in contact with each other.

2. A gun port closure comprising a frame member defining an opening, a pair of closure members pivoted to each other and to said frame member and covering said opening, and spring means tending to hold said closure members in contact with each other, the rear or inner surfaces of said closure members converging to the joint between said members.

3. A gun port closure comprising a frame member defining an opening, a pair of closure members pivoted to each other and to said frame member and covering said opening, and spring means tending to hold said closure members in contact with each other, said members having convexly spherical outer surfaces.

4. A gun port closure comprising a frame member defining an opening, a pair of closure members pivotally connected together in said opening and covering the same, a stud secured to said frame member adjacent the pivotal connection of said closure members, and a spring supported by said stud and entering said closure members, said spring being adjusted to bring said members together and hold them centered in said opening.

JOHN H. BUEKERS, JR.