Improvements in Springs for Opening or Closing Doors.
Year: 1895

page_text: Date of Application, 15th Nov., 1895
Complete Specification Left, 11th July, 1896-Accepted, 17th Oct., .1896
Improvements in Springs for Opening or Closing Doors..
THOMAS'STARKEY and WILLIAM ARTHUR STARKEY Ironmongers 170 South
Street Moor Sheffield Yorkshire do hereby declare the nature of this invention
to be as follows:-
Our invention relates to improvements in fittings adapted to spiral or rod
springs. For our purpose we fix a bracket to door frame and attach thereto an
ordinary coiled or a rod spring, the other end of spring is fitted to a circular collar
or disc which rotates; on the face of this disc we make a hexagon projection, with
a central pivot which revolves in hole of bracket fixed to door, which said bracket
is likewise provided with a hexagon projection corresponding to first mentioned,
and sliding up and down on these two projections we use a loose collar whose
internal dimentions are such that it closely fits both and which by sliding up or
down alternatly allows or prevents the rotation of disc, thereby the tension of
spring is obtained and the reaction it exerts on door is to close it or keep it
open as may be desired..
Dated this 14th day of November 1895.
THOS. STARKEY.
WILLIAM ARTHUR STARKEY.
Improvements in Springs for Opening or Olosing Doors.
THOMAS STARKEY 170 South Street Moor Sheffield Yorkshire Ironmonger
WILLIAM ARTHUR STARKEY 170 South Street Moor Sheffield Yorkshire
Ironmonger 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 :-
Our invention relates to improvements in springs for opening or closing doors
and consists of fittings adapted to the spring whereby the reactive power of the
said spring may be adjusted with facility to suit the work which it is required to
perform. We secure these fittings together in a form which entirely avoids the
employment of any loose parts usually found in this class of spring, which are
objectionable owing to the difficulty in manipulating them and their liability of
being lost.
First, we attain this object by the special arangement which we have illustrated
and for the better explanation we have appended one sheet of drawings hereto;
similar referances denoting similar parts in the various figures.
Fig. 1. is a view of our invention in position.
Fig. 2. is a view showing the collar with its projections and hexagon sides for
adjusting the power of the spring with loose collar K and bracket A Fig. 4.
Fig. 3. is a side elevation of the opposite-end bracket
Figs. 5. 6. 7 and 8. is a view of our invention provided with arm.
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page_text: For the purpose of our invention, we take an ordinary spiral spring S, one end
of which we fasten to bracket B. by which that end is attached to the door or door
frame. The other end of the spring fits on and turns with a circular collar or
disc C, provided with holes T, or having other equivalent means by which it may
be turned round. This collar C has a central projection on each side, one pro-
jection D fitting into coils of spring, the other projection His made hexagon and
has a pivot P passing through a hole in the centre of a hexagon boss, on the
.lower bracket A. the end of this projection P having a washer W. revited on,
thereby coupling both together, but allowing rotating movement of collar C. In
manufacter the loose collar put on before the washer W. is revited on pivot, and
the collar by sliding up allows the rotation of collar C, and on being alid down on
boss of A prevents that rotation.
The mode of attaching spring to fittings is by any of the well known modes.
The said spring is fixed diagonally across the joint of door and its frame, its actiou
is not that of longitudinal expansion or contraction, but of a twisting movement or
nature; and it will be seen that the more the spring is twisted from its normál
position, the stronger its reactive power will become.
Assuming the spring to be fixed and that an increase of power is required, insert
a wire pin or lever in one of the holes T and twist the spring the necessary amount
of pressure required, (the loose collar K will need to be slid upon the collar C.
to do this) then let the loose collar drop again on to bracket A which secures
the two together and thereby increases the pressure which the spring exerts
on'door.
3
A modification of our invention (when the spring is fixed parallel to door joint)
is represented in Figs. 5 6. 7. and 8, in which is an additional collar R provided
with arm N. This collar in like manner to collar C, has a central circular projection
on each side, one projection Ofitting into coils of spring and the other projection Y
passing through and working in head or, bracket Al has a washer W revitted on
its end. The head M has a hole through its centre, similar to bracket A but
unlike it in respect of baving no hexagon boss. Having thus explained the
formation of these parts, it will be seen that in this spring being fixed upright on
door frame or jamb, and the arm N bearing against the door on the door being
opened, provided collar K is on bracket A the spring will begin to coil and its
reactive power be exerted at end of arm in closing the door. And, to still further
increase the power of spring, slide collar K on to C and twist toward door and
slide on to A again the collar K as afore explaned in Fig. 1. The oollar C and
its counterparts may have three, four, or any number of sides for adjustment.
The spiral spring may be substituted by a straight rodspring if desired.
The fittings marked A. B. C. K. R and M may be made of any suitable material
and the brackets A.. B and M may be varied in design.
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Having thus described our invention, we wish it to be understood that we are
aware that spiral and rod-springs are used for closing doors; and therefore do not
clain such use broadly; but what we do claim and desire to secure by Letters
Patent is,
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First. The combination with a spiral spring of an adjusting collar C. having.n
polygon projection arranged to engage with sliding collar K working upon a fixed
bracket A having a polygon boss of corresponding sides to collar C for the purpose
; specified, and substantially described and shown.
•
.f.:
Second. The combination with a spiral spring of an adjusting collar C. baying
a polygon projection arranged to engage with sliding collar K working upon a
fixed bracket A having a boss of corresponding sides to collar.C. The collar R
carrying a projecting arm N, one projection O. of collar R fitting into coils of
spring, the other projection Y passing through head or bracket M for the purpose
specified and substantially described and shown.
i..
Third. The combination with a straight rod-spring. fitted to an adjusting collar

page_text: having a polygon projection arranged to engage with sliding collar working upon
a fixed bracket having a boss of corresponding sides for the purpose specified and
substantially as described.
Dated this 10th dor of Jul 1906
THOMAS STARKEY.
WILLIAM ARTHUR STARKEY.