Improvements in Sliding Window Sashes.
Year: 1892

page_text: Date of Application, 4th Aug., 1892
Complete Specification Left. 4th May. 1893-Accepted. 17th June, 1893
PROVISIONAL SPECIFICATION.
Improvements in Sliding Window Sashes.
We PETER ROWLAND MORRIS, Builder, 38 Hart Street, Southport, and
JAMES SPENCER, Blacksmith 15 St. Luke's Groove Southport, do hereby declare
the nature of this invention to be as follows:-
The invention relates to constructing sliding window sashes on a system of
It has been designed to
equipoise, by which one sash is balanced by the other.
supersede the old arrangement of opening sash windows.
The advantages claimed for the new system are:-The great reduction in
expense of workmanship & material by removing necessity of providing & fixing
axle pulleys weights, cords & sash fasteners.
A small cog wheel or pulley is screwed at the top end of each pulley stile, over
which a small chain is worked & which is attached to top & bottom sash; the
opening of the window from the outside being prevented by lock fixed on the stile
of sash, to lock at various points if the window is open.
Patent to cover materials in brass or iron.
0
ו.
1000
PETER ROWLAND MORRIS.
JAMES SPENCER.
COMPLETE SPECIFICATION.
Improvements in Sliding Window Sashes.
We, PETER ROWLAND MORRIS, of 38 Hart Street, Southport in the County
of Lancaster, Builder, and JAMES SPENCER of 20 Maple Street, (formerly of
15 St. Luke's Grove,) Southport, aforesaid, Blacksmith, 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 :-
Hitherto sliding window sashes have been held by counterpoise weights and
A disadvantage of
cords running over pulleys in the jambs of the window frame.
this arrangement is that, should the cords break, the sashes must be removed and
the window frame be partly taken to pieces before the damage can be rectified.
Our invention is designed to dispense with this complement of weights, and to
make the two sashes on a system of equipoise, by which one sash is balanced by
the other, closing or opening simultaneously and in the same <degree.
In the accompanying drawings
:―
Figure 1 is a cross section of our improved sliding window sashes ;
Figure 2. a front elevation of a small portion of the bottom sash ;
Figure 3, a front elevation of a small portion of the top sash;
Figure 4, an enlarged section on the line ab of Figure 2, showing the latch;
Figure 5, a horizontal cross section through the top sash, showing the latch;
Figure 6, a vertical section through the sash showing a modified form of latch
entering holes in the sides of the sash; and
Figure 7, a detail view of another form of catch.
In these figures:-
A is the top sash: B the bottom sash the same or approximately the same
weight: C the window frame: D the brickwork of the building: E a small pulley
or toothed wheel mounted in a bracket secured to the window frame C: F a cord
or chain passing round the pulley and secured at opposite ends to the top of the
upper and lower sashes by means of eyelet plates or in other suitable manner.

page_text: There are preferably two pulleys and chains supplied for each window, and these
are located at the extreme sides of the sashes, as shown in Figure 3. The two
sashes thus counterbalance each other, no weights being employed. The raising of
the bottom sash enables the top sash to descend by gravity, and they are thus
caused to move together, closing or opening simultaneously and in the same degree.
The opening of the window from the outside is prevented by a catch G fixed on
the frame, and engaging at various points g in the sash as shown in Figures 2, 4, 5
and 6. This catch may be provided with a spring if desired.
The catch shown in Figure 7 presents another form, in which H is the bolt
sliding in holder I, secured to the window frame. This bolt is provided with a
shoulder to prevent it being drawn right out of the holder, and also with a spring h
which keeps it normally in engagement with the sash at various points. By pulling
the knob ', the bolt is released from the sash, and enables the latter to be opened
or closed as required. The spring may, if desired, be dispensed with, and the bolt
-threaded so as to screw into the holder, instead of sliding.
In order to prevent the simultaneous opening of the two sashes from admitting
too much air, or causing draughts in the room, we provide a board H secured to
the window frame. This board passes completely across the window and entirely
prevents (when the sashes are slightly open) all admission of air except by way of
the top sash, the space under the bottom sash being closed by the board.
When,
however, the sashes are opened wide, air gains admission by way of both sashes.
Among the advantages gained by the use of this invention may be mentioned ;
the great reduction in expense of workmanship and material by removing the
.necessity of providing and fixing the ordinary axle pulleys, weights and cords.
Should the cord break, the damage can be very easily rectified without taking to
pieces any part of the window frame.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
1. The improvement in sliding window sashes, substantially as set forth, whereby
they are more easily repaired, and the use of counterpoise weights is dispensed
with.
2. In sliding window sashes, the combination therewith of a rotary pulley or
toothed wheel located at or near the top of the window, and a cord or chain passing
over each of said pulleys, said cord being attached at opposite ends to the sashes,
whereby the two sashes are caused to counterbalance each other, and close and
open simultaneously substantially as set forth.
3. The various arrangements of bolts or catches substantially as described,
whereby the opening of the window from the outside is prevented, and the sashes
can be secured at various points when open.
4. The combination with sliding window sashes, in which the sashes balance each
other, of a weather board H extending across the bottom of the window sub-
stantially as and for the purpose described.
Dated this 3rd day of May 1893.
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Nottingham, and London, Patent Agents.