US2108040A - Latch - Google Patents

Description

Feb. 15, 1938. w. R. BLUEH'DORN ET AL v v2,108,040

LATCH Filed March 15, 1937 Inventors William; R-E|luehdnrn Forrest Kfiuwar'd At urney 'atented Feb. 15, 1938 V UNITED STATES PATENT OFFICE LATCH William R. Bluehdorn, Hartford, Conn, and Forrest 'K. Howard, East Falls Church, Va.

Application March 15, 1937, Serial No. 130,964

2 Claims. (01. 285-146) (Granted under the act of March 3, 1883, as amended April 30, 1928; 370 0. G. 757) The invention described herewith may be manperpendicular to the axis of said member. When ufactured and used by or for the Government for the latch is in locking position the members governmental purposes, without the payment to and 6 are incapable of rotational displacement.

, usof any royalty thereon. The offset position of the pin l2 with respect D This invention relates to a latch for threadedly to the serrated faces 15 and It; produces a camconnected members. ming action of the latch so that it will be neces- The purpose of the invention is to provide a sary to apply force to the latch to move it out of simple and conveniently operable latch for mainlocking position. taining the relative connected position of a pair The latch includes a long actuating arm ll of threaded members. having a bent extremity I 8 which engages the 10 To these and other ends, the invention conmember 5 when the latch is in locked position. sists in the construction, arrangement and. com- A recess I9 is formed in the members 5 to facilibination of elements described hereinafter and tate grasping the tail of the arm I! or to permit 1; pointed out in the claims forming a part of this insertion of a member (not shown) for prying specification. the latch upwardly.

A practical embodiment of the invention is il- We claim: lustrated in the accompanying drawing, wherein: 1. A pair of rotatably connectable members, Fig. 1 is a longitudinal sectional view of threadthe end of one of said members having a curved ed members with the latch in locked position. serrated face, the other member having an open- Fig. 2 is a similar view with the latch in uning and a transverse groove in its outer surface 20 locked position. extending on opposite sides of the opening, spaced Fig. 3 is a plan view. lugs on said other member at opposite sides of Fig. 4 is an end view. the opening and having apertures coaxial with 7 Referring to the drawing by characters of refthe groove, a pin passing through the apertures 35 erence there are shownapair of cylindrical memof the lugs and resting in the groove, a latch bers 5 and 6 respectively having an externally mounted on the pin between the lugs and parthreaded end 1 and an internally threaded end tially disposed in the opening, a short arm on 8 whereby they are rotatably and separably conthe latch having a curved serrated face for ennected. gaging the complementary face of said one mem- In order to maintain a predetermined angular ber, and a long arm on the latch having a bent relation between the connected members, a latch extremity for engaging the latch-supporting carried externally by one member, in this inmember when the latch is in locked position. stance the member 5, is arranged to have a lock- 2. A pair of rotatably ccnnectable members, ing engagement with the other member. The one of said members being a latch-supporting latch has its hub 9 positioned between apertured member and the other an .engaged member havlugs lfl-|0 and extended through an opening ing a curved serrated face, spaced lugs on the II in the member 5. It is mounted on a pin l2 latch-supporting member, a pin passing through passing through the apertured lugs and, in order the lugs and offset with respect to the engaged that the central portion of the pin may be posimember, a latch disposed between the lugs and tioned below the adjacent portion of the memmounted on the pin, a short arm on the latch her-6, its ends are accommodated in atransversehaving a curved serrated face for engaging the 1y disposed groove l3 in the member 5. complementary face of the engaged member, and

The short arm I4 of the latch is formed with a a long actuating arm on the latch. curved serrated face l5 adapted to engage a complementary curved serrated end face IS on the WILLIAM R. BLUEHDORN. member 6, which face is generally in a plane FORREST K. HOWARD.

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