Improvements in Apparatus for Raising and Lowering Window Sashes, Shutters, and the like, and for other similar Purposes.
Year: 1889

page_text: Date of Application, 30th May, 1889--Accepted, 13th July, 1889
COMPLETE SPECIFICATION.
Improvements in Apparatus for Raising and Lowering Window
Sashes, Shutters, and the like, and for other similar Purposes.
I, EDWIN SAMUEL FLETCHER MANN, of Verwood, Salisbury, in the County of
Wilts, School Master, 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 :-
This invention relates to improvements in apparatus for raising and lowering
window sashes, shutters, and the like, and for other similar purposes.
The invention consists of providing the window sashes and the like with lugs or
projections passing through the sides of the sash frame or its equivalent, and carrying
nuts working on correspondingly screw threaded spindles fixed vertically in any con-
venient spot. The spindle or spindles is or are actuated by bevel wheels operated by a
winch handle fitting over a boss which passes through the front of the window sash
or its equivalent. The said winch handles being either fixed or moveable as desired.
In order that my invention may be fully understood and carried into practice,
I will now proceed to describe the same with reference to the accompanying
drawings which represent my invention as applied to window sashes. Similar
letters of reference are used to indicate corresponding parts in all the figures.
Figure 1 is a front sectional elevation of a window and frame complete. Figure 2
is a side elevation, and Figure 3 a plan of the same.
On each side of the sash frame, I cut two longitudinal slots or apertures A & B, one
for the upper and the other for the lower sash. Through these slots I pass lugs or
projecting pieces C terminating in screw nuts D and pass the corresponding screw
threaded spindles E through them. These spindles E are held in position by plates F
secured to the sides of the sash frame or to any other spot as found convenient,
which said plates are provided with apertures or depressions forming journals or
bushes for the spindle E.
For such articles as window sashes I prefer to use two or more lugs C to each sash
one or more on each side as shewn in the drawings and each provided with a nut
working on a screwed spindle. In this case one winch handle & is made to actuate
both spindles attached to the one sash whether the upper or the lower by the arrange-
ment of bevel gear and transmitting spindle shewn on the top of the sash frame in
Figure 1. In the drawings the winch handle on the right side actuates the lower
sash, and the winch handle on the left side actuates the upper sash, both handles of
course passing through the front of the window sash frame into the interior of the
house, so that when fitted with this apparatus the windows etc. are absolutely hurglar
proof, as they cannot be raised or lowered otherwise than by actuating the screwed
spindles or by stripping all the threads therefrom which is practically impossible.
When the winch handle G is turned, the bevel wheels H & J will transmit
the motion and rotate the spindle E, the bevel wheel K and L will transmit the
motion and rotate the transverse spindle M which will again transmit it by the
bevel wheels N & O and rotate the parallel spindle E. Similarly when the winch
handle G¹ is actuated the bevel wheels O₁ & N¹ will transmit the motion and so on.
It is obvious that the invention is capable of considerable modification and that it
may be varied to suit various circumstances without departing from the nature of
the invention.
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 arrangement of annaratus ne described consisting of nuts working on screwed

page_text: spindles actuated by bevel gear and winch handles or their equivalents all combined
and operating substantially in the manner described and illustrated in the accompanying
drawings and for the purposes stated.
Dated this 29th day of May 1889
CASTLE SMITH,
Per F. W. Golby,
"Invention" Office, 54, Fleet Street, London, E.C., Agent for the Applicant.