US1686805A - Door catch - Google Patents

Description

Oct. 9, 1928. i,686,805

F. E. FORG noon cmcu Filed Feb. 24, 1923 Patented Oct. 9, 1928.

rannnarcxn' FORG, or nnn'mo'ron, MAssAcn'usEir'rs.

noon 'ca'rcn.

Application filed February 24, 1923.

This invention relates to a door catch of that character in which a catch member is located within a casmgand has one end normally projected out therefrom by a-spring within the casing. i

The present invention has for its object to provide normal position by unlntentional movement of the catch member with respect to the casing. j The particular features of the invention will be hereinafter pointed out in the claim at the end of this specification. c

In the drawings illustrating the preferred embodiment of the invention, Fig. 1 is an elevation of the improved door catch;

Fig. 2, a vertical section catch applied to a door; and V Fig. 3, a cross section on-line 3 3 ofFig. 1. Referring to the drawing, thedoor catch comprises a metalcasing or shell 10 having an open end or mouth 12 and a catch member 13 supported within the casingl'O to norm lly project from the mouth 12. The casing is adapted to be inserted'into a hole in the ace of a door 14 so that the open end. or mout of the casing is substantially flush withthe face of the door.

In the illustrated constructiomthe catch member 13 comprises a; plunger having-a conical shaped nose 15. The plunger is screwedupon the threaded'end of a bolt 16 projectingrearwardly through the rear end of the casing 10. The plunger 13 is yieldingly urged in a position in which the conical nose.15 projects from the mouth 12 of the casing, by a coiled spring 18 embracing the bolt 16 and having its opposite face of the plunger the casing 10. v I 7 Provision is made for retaining the catch member 13 and also the bolt 16 in operative relation to the casing 10 in order to prevent the plunger from becoming unscrewedfrom the bolt 16 during the use of the door catch. For this pur ose, the rear end of the bolt may and pre erably will be squared as at 19 and arranged to slide in a square hole in the 13 and the rear end of plunger a novel, simple and efiicient door catch of the character described, in which showing the door r to adjust the compression on by inserting the spanner into the slots 22, 24

threaded end of.

forward direction into aends abutting the rear 7 7 continued Serial No 620,947.

' rear end of the casing, to thereby prevent.

of the bolt 16 with relation to the In order to prevent rotation of the 13 with relation to the casing and rotation casing.

bolt, the casing 10 is provided with a finger I I or lug 22 arranged to extend into an axial slot 23 in the surface of the door catch or plunger 13. The plunger may also be provided with a second slot 24 which, together with the slot 23, may be employed for the reception pf a spanner or similar tool for screwing'the plunger onto the threaded end of the bolt 16. The axial slot 22 while effectively' preventing rotation of .the plunger 13 upon the threaded. bolt 16 does not interfere with the reciprocation of the plunger during the operation of the door catch.

The finger stamped directly shape illustrated in'Fig. 3 to form a yielding pawl engaging the axial slot 23 with sufiicient force to prevent unintentional rotation of the plunger during the use of the door catch 22 may and preferably will be from the casing'into the by frictional contact with the jamb of'the door in opening and closing the same, but which at the same time enables a' workman the coiled spring and rotating the plunger, the spring pawl yielding sufficiently to permit'such'rotation.

' Y In'assembling the door catch, the plungerthe bolt 16 until the delunger, serves to retain the coiled spring 18 I at the compression at which the door catch operates with maximum. efliciency, and in addition,

as has been pointed out, prevents the plunger from becoming unscrewed and of the door catch separated after use of the cdoor'catch. 7

described the invention, what the parts Having thus .is claimed is:

In a door catch of the character described, 7 in combination, a casing, a catch member having in its outer surface an axially extended slot andinsertible into said casing from one, end thereof and capable of being rec'iprocated in said casing and of being manually rotated thereinto adjust it with relation to the end of the casing, means Within the casing for supporting said catch member and upon which it may be rotated, and a yielding member carried'by said casing and movable into and out of said slot, said member being normally extended into said slot in operative relation to the catch member to restrain the latter from being unintentionally rotated and being moved out of saidslot and'into inoperative relation'to the catch member'by manual rotation of the latter.

In testimony whereof, I have signed my name to this specification. v p a FREDERICK E. F ORG.

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