Improvements in the Construction of Spring-roller Fittings for Sliding Windows and Shutters, and for other similar purposes.
Year: 1894

page_text: Date of Application, 21st Nov., 1894-Accepted, 22nd Dec., 1894
COMPLETE SPECIFICATION.
Improvements in the Construction of Spring-roller Fittings for
Sliding Windows and Shutters, and for other similar purposes.
ISAAC PEDLEY Junr. Iron and Steel Merchant's Manager, Gower Terrace
Willenhall, Staffordshire, 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 those spring roller fittings which are fixed upon sliding
window-sashes and sliding shutters and doors, to sustain the same in the frame of
the window, shutter or door respectively either without the use of balance-weights
and cords, or in addition thereto, to prevent rattling and to make the sash, shutter,
or door move in its frame more easily. The said spring-roller fittings are also
sometimes employed in the frame of the sliding window sashes, shutters, or doors,
for like purposes.
The object of the present invention is to improve upon a previous invention of
mine upon which Letters Patent were granted to me the 21st October, A.D. 1890,
numbered 16,709, so that the spring-roller fittings will be more effective in their
action.
In order that this said invention may be the more readily understood, I have
shewn same upon the accompanying sheet of illustrative drawings, wherein :
Fig. 1. is a side elevation of the spring-roller fitting,
Fig. 2. a plan thereof,
Fig. 3. a view of the spring-roller fitting in perspective and,
Fig. 4. a view shewing the spring-roller fitting fixed to a sliding window-sash.
Referring to the drawings, in which like letters of reference indicate corresponding
parts throughout the several figures, a is a base plate, having fixed thereto,
preferably one near each corner, (assuming the plate a is of rectangular or similar
shape), springs b', which may be flat in section, or circular or any other shape
that is desirable or convenient. The free ends of the two springs bare bent round
to constitute bearings 6 for the axle c² of the roller c to work in, which roller is
thus carried between such bearings and projects through a rectangular or other
opening a provided in the plate a, a sufficient distance beyond the under face of
such base-plate a. The springs press upon the springs and help to retain the
roller c in its normal position as shewn.
Instead of bending the free ends of the springs b into circular loops as described
and shewn by my former Specification, herein before referred to, I prefer to bend
the said ends into oblong or elliptical loops to form the bearings 62 to carry the
axle c¹ of the roller c, by which means the said roller is allowed a slight longitudinal
to and fro movement as shewn by Fig. 1.
A curved spring d is fixed in any suitable manuer, or formed integral with the
plate a, the free end of which spring d is provided upon its under surface with a
leather or other pad d', the whole constituting a brake which comes into operation
when the roller is travelling downward, by the said downward movement forcing
the roller c upward when used with a vertical sash so that the axle c moves to the
upper ends of the bearings b, thereby coming into contact with the brake pad d¹ of
the brake d and causing same by the friction set up to offer considerable resistance
to the descent of the sash.
The springs b' and the brake d may be formed of such a strength that the friction
set up will support the sash without cords or weights, or the fittings may be used

page_text: in combination with cords and weights or their equivalent, to prevent the sash
rattling and to render the running of same easier.
The springs 6, 6' and d may be constructed in various ways, such as those set
forth in my former Specification hereinbefore referred to. In lieu of bending the
free ends of the springs 6 into complete loops to form the bearings for the roller
axle, as herein before described and illustrated, I may bend the said free ends of
the springs b upwards into semi-circular form as shewn by Figs. 5 and 6 so that the
said ends will only form partial bearings, the axle c¹ really working upon the
surface of the plate a. By this means a smaller roller may be employed than in
the form of bearing previously described.
The form of spring shewn by Fig. 5 is intended for use where a brake is employed,
while that shewn by Fig. 6 is for use without a brake.
When the spring-roller fittings are fixed to the window-sash small recesses (not
shewn) may be cut out or formed in the sides of the frame near the top thereof, so
that when the upper sash is raised, the rollers will fit into such recesses and prevent
the sash slipping and also ensure the sash fitting closely against the sides of the
frame.
The peripheries of the rollers e may be smooth or roughened or serrated, as found
desirable and also I can dispense with the springs b₁ if necessary, by forming the
springs 6 of sufficient strength to maintain the roller e in its normal position when
in operation.
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 ;-
CLAIMS.
HUGHES & YOUNG,
23, Coleman Street, London, E.C., Agents.