Lock. Page: 2 of 5
[1], 4 p. : ill. ; 23 cm.View a full description of this patent.
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UITED STATES PATENT OFFICE:
CIARLES W. STOCKBURGER, OF ALLFN, TEXAS.
LOCK.Specification of Letters Patent.
Patented Dec. 2S,1915.
Application filed April 28, 1915. Serial 1No. 2!,521.
[To all whom it may concern:
Be it known that I, CHARLES T. SToCK-
unGan, a citizen of the United States, resid-
ing at Allen, in the county of Collin and
5 State of Texas, have invented certain new
and useful Improvements in Locks, of which
the following is a specification, reference be-
ing had to the accompanying drawings.
My present invention relates to new and
10 useful improvements in locks and has par-
ticular reference to those of the type which
are designed especially for use in connection
with screen doors and the like.
The principal object of the invention is to
15 provide a lock of this character which is
relatively simple in construction and may be
easily and quickly set to permit the door to
open and close, without hindrance, or to lock
the door in closed position.
20 A more specific object of the invention is
to provide a lock in which the lock bolt is
both rotatable and slidable, with respect to
the lock casing and is provided at its outer
end with a lock bar which is normally held,
25 by yieldable means contained within the
casing, in engagement with a fixed catch se-
cured to the door frame and is adapted to
rotate about the bolt, as an axis, when the
door is being opened.
30 Another object of the invention is to pro-
vide a lock having the above characteristics,
in which the lock bar is adapted to move to-
ward the casing when engaging the fixed
catch, during the return movement of the
35 door to closed position.
A further object consists in providing a
lock bar which is adapted to rotate, when
the .door is to be opened, so that in case the
door suddenly slams to closed position, the
40 lock will permit a slight reaction of the door
into partially open position so that the
shocks to the door will be minimized.
A still further object is to so construct the
lock that but one spring is employed in nor-
45 mally projecting the bolt into operative en-
gagement with the fixed catch and in yield-
ably holding the lock bar against rotation.
The above, and other incidental objects
of a similar nature, which will be herein-
50 after more specifically treated. are accom-
ilished by such means as are illustrated in
the accompanying drawings, described in
the following specification, and then more
particularly pointed out in the claims which
55 are appended hereto and form part of this
application.With reference to the drawings, wherein
there has been illustrated the preferred em-
lodiment of this invention, as it is reduced
to practice, and throughout the several views 60
of which similar reference numerals desig-
nate corresponding parts, Figure 1 is a per-
spective view showing the several parts of
the lock in disassembled relation to each
other, but indicating the manner in which 65
they are adapted to he assembled to form an
operative device; Fig. 2 is a section taken
vertically through the casing of the lock;
Fig. 3 is a section taken horizontally through
the casing below the plane of the locking 70
bolt; 1Fig. 4 is a detail view illustrating dia-
grammatically the position assumed by the
lock bar, when the door or other article to
which the lock is applied, is being opened
and closed; and Fig. 5 is a perspective view 75
of the lock with parts thereof assembled.
In Fig. 1 the lock is best shown as an
operative entirety, the various elements of
the lock being shown perspectively in dis-
assembled relation to each other, for which 8
reason reference will first be had to this
figure in describing the details of construc-
tion. Broadly, the lock includes a casing A,
consisting of two substantially U-shaped
members 10 and 11; a lock bolt 12, which is 85
mounted in the casing for sliding and rotary
movement; a lock bar 13 which is carried
on the bolt and is adapted to both slide and
rotate with respect to the casing; a stop pi
14 which extends through an arcuate slot 15, cc
formed in one end wall of the casing; a heli-
cal spring 16, which is wound about the bolt
and is engaged with the stop arm; a fixed
ca tch member 17 which is engageable by the
lock bar, and a locking stud 18 which may be cs
disposed to hold the stop arm against swing-
ing, whereby the lock bar is held in locking
engagement with the fixed catch or may be
disposed to permit the stop arm to swing
freely, whereby it may be readily disen- ,cec
aged from the catch.
The member 10 is, as above explained,
substantially U-shaped, being formed from
a single blank or plate of sheet metal, and
constitutes the base portion of the casing. 105
For this reason, the bight wall 19 of the
member 10 is provided on its four corners
with the apertured ears 20 through which
screws or similar fastening devices may be
passed for securing the casing to the door, m-O
to which the lock is to be applied. Slots or
notches, indicated at 21 are included be-1,9165,83.
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Stockburger, Charles W. Lock., patent, December 28, 1915; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth859056/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.