Improvement in the Means of Raising, Lowering, and Balancing Double-hung Window Sashes and the like.
Year: 1895

page_text: Date of Application, 31st July, 1895
Complete Specification Left, 20th Apr., 1896-Accented, 6th June, 1896
PROVISIONAL SPECIFICATION.
Improvement in the Means of Raising, Lowering, and Balancing
Double-hung Window Sashes and the like.
WILLIAM PARRY 27 Slater Street Great Bridge Tipton Engineering Pattern
Maker, do hereby declare the nature of this invention to be as follows:-
The invention entirely dispenses with the need of sash pullies, cords, weights
and boxed frames, and consists of 2 metal cases a being boxed into each style of
sash. Attached to metal case a by means of spindle is a pressure roller bracket c.
The roller drevolves on spindle e and is cased with a flexible gutta percha
composition furrule to prevent damage to jamb of sash frame. The balancing
pressure is obtained by means of an elastic pad acting as a spring and fulcrum
under roller bracket c, thus giving to the tangent of roller a pressure against the
janib of frame. The roller when in its normal position before entering the sash
frame would project about twice the ordinary clearance between style of sash &
frame.
I
1
T 1
1005
WILLIAM PARRY,
Improvement in the Means of Raising, Lowering, and Balancing
Double-hung Window Sashes and the like.
1, WILLIAM PARRY of 27 Slater Street, Great Bridge, in the County of
Stafford, Engineering Pattern Maker 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:-
In the following description of my invention I refer to the drawings "left with
my Provisional Specification
Which consists of a longitudinal and transverse sections and an elevation of face
of apparatus. The apparatus is designed and constructed as a means of raising,
lowering, and balancing (i.e. suspending) what are technically known as double-
hung window sashes and the like.
It consists of the metal frame a which has two sides, two ends, an open face and
partially open bottom.
.
Hinged between the sides of this frame and flush with its open face by means of
spindle is a pressure roller bracket c.
At the opposite end to the hinged there is a jaw formed in the bracket the two.
cheeks of which are connected by a second-spindle e upon which revolves the small
roller d.
The roller d has its circumference cased with an india rubber ferrule f to give
grip and flexibility to its tangent and prevent damage to jamb of sash frame
against which it is intended to work.
The balancing (i.e. suspending) power is obtained by means of an india rubber
pad or cushion y fitted in the small box on the bottom of metal frame a, and under
the centre of roller bracket c.

page_text: The pad 9 thus forms a fulcrum and spring causing a pressure to be exerted
from base of metal frame a against the underside of roller bracket c, and
consequently forces out the free end of bracket with roller d attached. The
roller bracket would be held in its normal position by means of a screw pin passing
through a free hole in the bracket, through the pad g and threaded into the base of
metal frame a the bracket being under considerable pressure.
Two of these small apparatus are boxed flush into the edge face of each sash style,
four in each sash as near as possible (without injury to the tenons) to the top and
bottom of same.
There would now be a chord of four small rollers projecting about "(a quarter
of an inch) beyond the edge face of each sash style two on either side of sash and
facing the jamb of sash frame. As the clearance between the style of sash and
jamb of frame would not exceed 3" (three thirty seconds of an inch) the roller
bracket would be forced back upon its flexible cushion g, till the tangents of the
small rollers would enter between the jambs of sash frame, and then the sashes
rolled into their proper and respective places. . . The apparatus would admit of
various sizes as the varied sizes of sashes may require, viz. as small, medium, and
large.
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 :
1. An apparatus consisting principally of boxed frame, roller bracket, cased
roller, and india rubber pad; that by its use will dispense with sash lines, axle
pulley frames, sash weights, and boxed-up sash frames, substantially as shown and
described.
2. An apparatus to be boxed into styles of sash with rotary power comparatively
free, yet being under sufficient pressure to obtain balancing (i.e. suspending) power
available at any desired point of route of sash, substantially as shown and
described.
3. An apparatus that will enable its user to raise, lower, or suspend any ordinary
vertical sliding window sash especially the centre lights of bay and Venetian
windows. Will permit of solid frames, and hold the sash firm against strong winds,
substantially as shown and described.
101
1000
WILLIAM PARRY.