Improved Means for Retaining Window Sashes and the like.
Year: 1893

page_text: Date of Application, 23rd Dec., 1893-Accepted, 3rd Mar., 1894
COMPLETE SPECIFICATION.
Improved Means for Retaining Window Sashes and the like.
I JOSEPH CAMPBELL, of 19 Harrington Street, Dublin Book-keeper 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 improved means for retaining window sashes and the
like and has for its object to provide a simple and efficacious means of retaining the
sash in any desired position dispensing with sash cords weights and pulleys heretofore
in use; and also to effectually prevent rattling of the sash in the frame draughts
and the sudden falling of the sash through breakage of the sash cord. In order
that my invention may be the more readily understood I have shewn same upon
the accompanying sheet of illustrative drawings wherein :-
Fig. 1 represents an elevation of my invention,
Fig. 2 a longitudinal section thereof,
Fig. 3 shews a plan of the plate,
Fig. 4 a section of same,
Fig. 5 is a portion of a sash with my invention applied thereto.
Referring to the drawings a is a cylinder of metal or other suitable material
wherein is contained a spiral or other suitable form of spring a' the said spiral
spring encircling a pin a² having at its extreme end a round head projecting
through the plate at which plate may be cast integral with the cylinder a or both
may be formed separately and joined in any suitable manner. The bottom a³ of
the cylinder a is closed and through the centre passes the end of the pin a² afore-
mentioned. By so doing the round head a³ of the pin guided as it is depressed
thus obviating the risk of the same jambing.
of metal or any other
are
Figs. 3 and 4 consists essentially of an oblong plate
suitable material the centre of which is countersunk to form a concave surface
to correspond with and receive the round head a³ of the pin concave sides
provided sloping up from the countersunk cup to the surface of the plate the
object of which is to guide the round head a³ to the cup and also to depress the
said round head more gradually facilitating the raising and lowering of the sash.
In carrying my invention into practice I attach two or more of the cylinders a to
the frame c of the window by means of screws passing through the countersunk
screw holes as provided for that purpose. Upon the sash d opposite the cylinder a
is affixed at equal distances two or more, as may be found convenient and necessary,
of the plates and in such a manner that when the window is closed at least one
of the plates
and cylinder a coincide. It is obvious that when the window e is
raised the resiliency of the spiral spring allows the round head a³ to be depressed
the same thus sliding out of the concave receptacle 6. Upon the depressed round
head a reaching the next plate the elasticity of the spiral spring a' causes the
round head a to spring forward and engage with the concave receptacle thus
holding the window firmly in the desired position. My invention is also applicable
to railway, and tram windows, shutters, and the like purposes.
t?
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed declare that what 1
claim is
1. The improved means for retaining window sashes and the like consisting of
the vlinder containing round hooded in or rod actuated by the spring in
n

page_text: combination with a cup shaped receptacle for engaging and holding the said
round head of the pin substantially as described and ascertained in and by the
accompanying drawings and Specification.
Dated this 23rd day of December 1893.
HUGHES & YOUNG,
12; Basinghall Street, London, E.C., Agents for Applicant.