Sash Lock Page: 2 of 3
This patent is part of the collection entitled: Texas Patents and was provided to The Portal to Texas History by the UNT Libraries Government Documents Department.
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JOHN A. BROWN, OF DALLAS, TEXAS.
SASH LOCK.
Specifncation of Letters patent. Pate ted Jan. 10,, f1z2 .
Application filed July 22, 1920. Serial No. 398,259.To all whom it may concern:
Be it known that I, JOHN A. BROwN, a
citizen of the United States, residing at
Dallas, in the county of Dallas and State of
5 Texas, have invented certain new and useful
Improvements in Sash Locks, of which the
following is a specification.
This invention relates to new and useful
improvements in sash locks.
10 The object of the invention is to provide
a sash lock carried by the lower window
sash in position to engage the side rail of
the upper sash and equipped with an op-
erating element at a point removed from
15 the casing, sufficiently for convenient opera-
tion. Another aim is to produce a sash lock
as well as means for preventing rattling of
the sashes.
In carrying out the invention a longitu-
20 dinally movable locking bolt is mounted in
a rotatable element. A rotatable operat-
ing element is displaced laterally from the
bolt and is connected with the rotatable ele-
ment for operating the same. By this ar-
25 rangement the bolt may operate close to the
window casing, while the operating element
may be located at a point convenient to op-
erate.
The invention will be more readily under-
30 stood from a reading of the following speci-
fication and by reference to the accompany-
ing drawings, in which an example of the in-
vention is shown, and wherein:
Fig. I is a partial elevation of a window
35 showing a lock constructed in accordance
with my invention in position thereon.
Fig. 2 is a horizontal sectional view on
the line 2-2 of Fig. 3,
Fig. 3 is a longitudinal sectional view on
40 the line 3-3 of Fig. 2,
Fig. 4 is a cross-sectional detail on the line
4-4 of Fig. 2, and
Fig. 5 is a cross-sectional detail on the line
5-5 of Fig. 2.
45 In the drawings the numeral 10 designates
a rectangular casing having provision where-
by it may be fastened on top of the lower
sash A of a window. Near one end the cas-
ing is provided with a bearing ring 11 re-
50 ceiving one end of a sleeve or cylinder 12
disposed transversely of the casing. The
other end of the cylinder is supported in a
bearing seat 13 formed in a collar 14 formed
integral with the side of the casing. A lock-
55 ing bolt 15 is disposed in the cylinder and is
provided with a square end 16, the cylinderhaving an elongated guide way 17 receiving
the end 16. By this arrangement the bolt
may slide ax\ially but cannot rotate in the
cylinder, thus the bolt is revolved by the ( (
cylinder.
The outer end of the bolt is screw threaded
at 15' and engages in the collar 14 which is
screw threaded to receive the bolt. By re-
volving the cylinder, it will be seen that the 65
bolt will be screwed through the collar and
moved longitudinally. " screw threaded
keeper 18 is counter-sunk in the side rail B
of the upper sash and is positioned to receive
the end 15' of the bolt. 70
For revolving the cylinder I mount a pair
of sprockets 19 on the same. These sprockets
are driven by endless chains 22 from sprock-
ets 20 mounted on a transverse shaft 21. The.
shaft projects from the casing and has a 75
thumb button 23 fastened on its end, where-
by the shaft may be revolved. For taking
up the slack in the chains idler sprockets 24
are engaged with the same intermediate their
lengths. The sprockets 24 are mounted on a 80
counter shaft 25 supported in the casing.
It will be seen that the casing 10 may be
mounted so that the bolt 15 will engage the
keeper 18 in the rail B of the upper sash
at a Point closer to the window frame; while 85
the thumb button 23 may be located a suffi-
cient distance from the window frame to en-
able it to be readily grasped and turned. It
will be seen that if the thumb button was
fastened directly on the bolt, it would be so 90
close to the window frame as to prevent a
proper operation and one could not get a
sufficient hold on it, to tighten the lock.
When the bolt enters the keeper 18 the sashes
will be drawn together and thus the sashes 95
will not only be locked against up and down
movement, but will be fastened together and
held tightly in their guide ways. whereby
rattling will be prevented.
What I claim, is: 100
1. In a sash lock, a casing, a locking bolt
disposed transversely of the casing, said bolt
having a screw threaded end, an internally
screw threaded keeper, and means off set
laterally from the bolt having operative con-- 105
nection with the same for screwing the
threaded end of the bolt into the keeper.
2. In a sash lock, a casing, a locking bolt
movable transversely of the casing, a keeper
receiving the end of the bolt, a cylinder sur- 110
rounding the bolt, an operating member off-
set laterally from the cylinder, and means57TATE
UNTEDr FI
PATENTIT" 1CE
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Reference the current page of this Patent.
Brown, John A. Sash Lock, patent, January 10, 1922; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1257145/m1/2/?q=%22%22~1: accessed June 26, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.