Improvements in Sliding-sash Windows.
Year: 1890

page_text: Date of Application, 21st Mar., 1890
Complete Specification Left, 22nd Dec., 1890-Accepted, 24th Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in Sliding-sash Windows.
I, GEORGE LE MAISTRE, of Kersage Cottage, Beaumont, St. Lawrence, Jersey,
Carpenter, do hereby declare the nature of this invention to bo as follows:-
My invention relates to what are known as sliding sash windows, and has for its
object to provide means whereby the sashes, whilst sliding or working freely, can be
suspended, or otherwise retained or balanced, at any desired height or position
without necessitating the use of sash weights and cords as is usual in the methods
ordinarily adopted.
In carrying out my invention I fit into each stile or side of the sash frame a cast
iron or other metal block or the like, held in place by a metal plate screwed in
position; suitable runners or rollers, carried on pins or centres in this metal block,
working against a metal plate, or equivalent bearing surface, let into each side of the
window frame adjacent to the sash stiles.
In order to suspend, balance, or hold the sash at any desired height or position,
I bore a hole transversely and horizontally through each style and metal block, the
hole in the latter being tapped with a screw thread, this thread being engaged by one
corresponding thereto formed on a bolt, stud, or the like, which is received within the
aforesaid hole or boring and fitted, if desired, with collars or flanges. The screw stud,
tap bolt, or the like, is formed with a suitable head or analogous means to facilitate its
actuation, this head projecting a sufficient distance from a metal plate let into the
inside of each of the stiles of the sash.
From the foregoing it will be seen, that whilst the sash is capable of free sliding
movement, it can be hung, or suspended, at any convenient height or position by
means of the tap bolts, screw studs, or the like aforesaid.
Dated this 20th day of March 1890.
-
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C., Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Sliding-sash Windows.
I, GEORGE LE MAISTRE of Kersage Cottage, Beaumont, St. Lawrence, Jersey,
Carpenter, 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 what are known as sliding sash windows, and bas for its
object to provide means whereby the sashes, whilst sliding or working freely, can be
suspended, or otherwise retained or balanced, at any desired height or position without
necessitating the use of sash weights and cords as is usual in the methods ordinarily
adopted.
In the annexed drawing
Figure 1 is a vertical section taken through the sash stile and window frame,
Figure 2 being an elevational view showing the bearing surface of the sash
stile.
In carrying out my invention I form a recess in each stile or side A of the sash
frame within which is fitted a metal block or carrier B suspended preferably by
its upper extremity by a spring metal plate a one end of which is secured to the
side of the stile A. Two or more rollers or equivalents bare carried on pins or centres

page_text: in this metal block or carrier Band work against a metal plate or equivalent bearing
surface clet into each side of tho window frame Cadjacent to each of the sash stiles A.
In order to suspend, balance or hold the sash at any desired height or position I
bore a holo transversely and horizontally through each stile A and metal block B, the
hole in the latter being tapped with a screw thread engaged by one corresponding
thereto formed on a bolt, stud or the like D, which is received within the aforesaid
hole in the block B and fitted with a fixed and loose flange and a pin, passing there-
through, in order that the bolt D when rotated shall not have horizontal motion. The
screw stud, bolt or equivalent D is formed with a suitable head to facilitate its
actuation, this head either projecting a sufficient distance from a metal plate d let
into the inside of each of the stiles A of the sash, or countersunk therein and rotated
by a screw driver or suitable key. The bolt D is arranged at an angle relatively to
the horizontal axis of the window sash in order that the head of same will just clear
the glass.
In action, the sash is raised to the required height after the bolt D is rotated a
sufficient number of times to cause the block B to assume the position shown in dotted
lines Figure 1 when the rollers b will press against the bearing plate c, the pressure
being regulated by the bolt D. It will thus be seen, that whilst the sash is capable
of free sliding movement any pressure exerted against the block B by the bolt D will
suspend the sash at the desired height.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
The improvements in sliding sash windows as herein described and shown.
of December 1890.
JAMES STEVENSON,
20, High Holborn, London W.C., Agent for Applicant.