Improvements in "Automatic" Window Locks and Catches.
Year: 1893

page_text: Date of Application, 3rd Aug., 1893
Co plete Specification Left, 12th Apr. 1394-Accepted, 12th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in "Automatic" Window Locks and Catches.
A communication from abroad by ROBERT G. SHARP, 185, Princess Street,
St. Johns, New Brunswick, in the Dominion of Canada, Merchant.
1, CHARLES HENRY FISHER of 13 Cannon Street in the City of London,
Warehouseman do hereby declare the nature of this invention to be as follows:-
My invention relates to the combination of a square spindle, a sliding plate, a
metallic case, a knob an outside plate, a gear wheel and track in such a manner
that the said combination when applied to windows of either buildings cars or
other windows shall be capable of holding and locking the sash when closed
or holding and locking it any desired height from the top or bottom of the frame,
the whole or any of the parts can be made of brass copper iron or other metal.
The outside plate of the lock which is let into and secured to the sash with screws.
It is grooved on the back to receive a sliding plate and has a vertical slot on
its face through which part of a knob is passed also a hole on which one of the
round or gudgeon ends of the otherwise square spindle is placed.
A sliding plate is made of a flat piece of metal with a circular terminating
vertical slot by means of this slotted sliding plate and acted upon by an upward
pressure on the knob the sash can be unlocked or locked at pleasure. The knob
spindle passes through the slot in the front plate into and through the sliding plate
where it is rivetted into the back of the same.
By placing an upward pressure on this knob it will raise the sliding plate and
remove the vertical part of the slot from the square spindle allowing the said
In this manner the
spindle to revolve in the circular terminus of the above slot.
catch is unlocked, and the sash can be raised or lowered in the frame as may be
required to any desired height when relieving the knob of its upward pressure it
will drop by its own weight when the sliding plate will readjust itself, so that the
vertical slot will pass down and over the before mentioned spindle preventing it
from revolving and thereby securely locking the sash.
In attaching the lock to a window the case is let into the sash with the one side
and the large hole facing the back of the front plate and one face flush with the
edge of the sash next window jamb. A gear wheel is then placed into the before
mentioned case when a hole is cut into the face of the sash directly opposite the
hole in the gear wheel through which the spindle is passed until the gudgeon end
of same reaches and goes through the small hole in the back of the case. Then
the front plate with the sliding plate and the knob is put into the inside of the
sash so that the small hole will come directly over the gudgeon end of the spindle,
the track is let into and secured to the jamb of window directly opposite the gear
wheel on sash so that the front of the teeth will be flush with the jamb.
operate the lock and catch raise the knob to the top of the slot when the sliding
plate will lift and allow the spindle to revolve in the circular terminus of the slot
the sash can then be raised or lowered at will. To fasten the sash at any desired
place remove upward pressure from knob when the sliding plate will drop by its
own weight and that of the knob, and prevent the spindle from revolving and lock
itself and secure the sash in place.
Dated the 3rd day of August 1893.
To
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.

page_text: Improvements in "Automatic" Window Locks and Catches.
A communication from abroad by ROBERT G. SHARP, 185, Princess Street,
St. Johns, New Brunswick, in the Dominion of Canada, Merchant.
I CHARLES HENRY FISHER, of 13 Cannon Street, in the City of London,
Warehouseman do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :—
My invention relates to the combination of a square spindle, a sliding plate, a
metallic case, a knob, an outside plate, a gear wheel and track in such a manner
that the said combination when applied to windows of either buildings, cars, or
other windows, shall be capable of holding and locking the sash when closed or
holding and locking it any desired height from the top or bottom of the frame.
The whole or any of the parts can be made of brass, copper, iron or other metal.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shews by a front view the improved lock and catch applied to a
window frame and sash.
the
Figure 2 shews the same by a cross sectional view taken on line 1-1 Figure 1.
Figure 3 shews an inner face view of the sliding plate with the square spindle of
gear wheel free to rotate.
Figure 4 is a like view shewing the square spindle locked by the sliding plate.
Figure 5 shews by a perspective side view the casing for the gear wheel.
Figure 6 shews by a perspective view the square spindle with round ends.
In the drawing A is the outside plate of the lock, which is let into and secured
to the sash H with screws P P. It is grooved on the back at A' to receive a
sliding plate B and has a vertical slot c on its face through which part of a
knob D is passed, also a hole d in which one of the round or gudgeon ends n of
the otherwise square spindle E is placed.
B is the sliding plate made of a flat piece of metal with a circular terminating
vertical slot e. By means of this slotted sliding plate and acted upon by an
upward pressure on the knob D the sash can be unlocked or locked at pleasure, as
will be described.
The knob spindle passes through the slot c in the front plate A into and through
the sliding plate B where it is rivetted into the back of the same. By placing an
upward pressure on this knob D it will raise the sliding plate B and remove the
vertical part of the slot e from the square spindle E allowing the said spindle to
revolve in the circular terminus of the above slot.
In this manner the catch is unlocked, and the sash can be raised or lowered in
the frame as may be required to any desired height, when relieving the knob D of
its upward pressure it will drop by its own weight, when the sliding plate B will
readjust itself, so that the vertical slot e will pass down and over the before
mentioned spindle E preventing it from revolving and thereby securely locking the
Bash.
In attaching the lock to a window the case F is let into the sash H with the one
side and the large hole i facing the back of the front plate A and one face k flush
with the edge of the sash next window jamb R. A gear wheel G is then placed
into the beforementioned case F when a hole is cut into the face of the sash
directly opposite the hole in the gear wheel, through which the spindle E is passed
until the gudgeon end n of same reaches and goes through the small hole in the
back of the case F. Then the front plate A with the sliding plate B and the
knob D is put upon the inside of the sash so that the small hole d will come

page_text: directly over the gudgen end of the spindle E. The track K is let into and
secured to the jamb R of window directly opposite the gear wheel G on the sash
so that the front of the teeth will be flush with the jamb.
To operate the lock and catch raise the knob D to the top of the slot c when
the sliding plate B will lift and allow the spindle E to revolve in the circular
terminus of the slot e. The sash can then be raised or lowered at will.
To fasten the sash at any desired place remove upward pressure from the knob D
when the sliding plate B will drop by its own weight and that of the knob, and
prevent the spindle from revolving and lock itself and secure the sash in place.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
In Improvements in "Automatic" Window Locks and Catches.
1. The sliding plate B as formed and made with the vertical slote and the
circular terminus fand as connected with the front plate A by the knob D and in
combination with the square spindle E substantially as and for the purpose
hereinbefore set forth.
2. The front plate A formed and made with the vertical slot c, and the groove A¹
on the back to receive the sliding plate B substantially as and for the purpose
hereinbefore set forth.
3. The combination of the plate A, the sliding plate B, the knob D, the square
spindle E, the case F, and the gear wheel G with the track K as applied to
windows and sashes, substantially as and for the purpose hereinbefore set forth.
4. The construction and arrangement of parts of an "automatic" window lock
and catch, and so as to enable them to co-operate substantially as shewn and
described.
101 1.
Ր A1 1004
W. M. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.