MUSHES.
Year: 1886

page_text: MUSHES.
We, TOM COOKE, Carpenter, and WILLIAM HENRY BOYENS, Engineer, both of
Kaikoura, in the Provincial district of Marlborough, in the Colony of New Zealand
do hereby declare the nature of this invention to be as follows:-
Our invention relates to an appliance for assisting in the raising or lowering of
sliding windows or sashes and for holding them in position when raised, of the
following construction.
A spring formed of a loop shaped metal bar is fixed at its end either to the side of
the sash or the jamb of the window, and carries, by preference in a bend formed at the
middle of its limbs, the axis of a barrel or hollow roller, the axis being fixed, with
the barrel revolving loose upon it between the limbs of the spring. The barrel contains
a volute spring, the inner end of which is fixed to the axis, while the outer end is fixed
to the barrel. Thus assuming the barrel to be turned upon its axis so as to wind up
the spring to a greater or less extent, while the barrel is pressed with its periphery
against the jamb or the sash by means of the spring, it will be seen that if the sash
be moved in the direction in which the barrel, in rolling upon the jamb or sash, will
allow the spring to unwind, whether this direction be upward or downward, the power
of the spring will assist the power applied by the hand to effect such motion, while in
moving the sash in the contrary direction, the barrel will be rotated so as to wind up
the spring again. If the sash be left in any intermediate position, it will be held
there by the frictional pressure of the barrel against the jaimb or sash caused by the
spring. The frictional contact between the barrel and the surface against which it

page_text: bears may be increased by forming on the periphery of the barrel teeth or serrations,
the surface against which it bears being either provided with similar teeth or serrations,
or left smooth.
The power of the spring can be regulated by means of a bar or plate sliding upon
the limbs of the spring and made to press more or less against the periphery of
the barrel.
The number of such appliances to be applied to a window sash will depend upon
the weight and size of the latter.
By means of this invention the usual sash lines and weights can be dispensed with.
1000
ABEL & IMRAY,
28, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: in Position of Sliding Windows or Sashes.
TOM COOKE, Builder and WILLIAM HENRY BOYENS, Engineer, both of Kaikoura,
Marlborough, New Zealand 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 an appliance for assisting in the raising or lowering of
sliding windows or sashes and for holding them in position when raised of the
following construction.
A spring formed of a loop shaped metal bar is fixed at its end either to the side of
the sash or the jamb of the window and carries by preference in a bend formed at the
middle of its limbs, the axis of a barrel or hollow roller, the axis being fixed with the
barrel revolving loose upon it between the limbs of the spring. The barrel contains
a volute spring, the inner end of which is fixed to the axis, while the outer end is
fixed to the barrel. Thus assuming the barrel to be turned upon its axis, so as to
wind up the spring to a greater or less extent, while the barrel is pressed with its
periphery against tho jamb or the sash by means of the spring; it will be seen that if
the sash be moved in the direction in which the barrel is rolling upon the jamb or
sash, it will allow the spring to unwind whether this direction be upward or downward,
the power of the spring will assist the power applied by the hand to effect such motion,
while in moving the sash in the contrary direction the barrel will be rotated so as to
wind up the spring again. If the sash bo left in any intermediate position it will be
held there by the frictional pressure of the barrel,. against the jambs or sash caused
by the spring.
The frictional contact, between the barrel and the surface against which it bears
may be increased by forming on the periphery of the barrel, teeth or serrations, the
surface against which it bears being either provided with similar teeth, or serrations
or left smooth. The power of the spring can be regulated by means of a bar or
plate sliding upon the limbs of the spring and made to press more or less against the
periphery of the barrel. The number of such appliances to be applied to a window
sash will depend upon the weight & size of the latter.
By means of this invention the usual sash lines & weights, can be dispensed with.
Fig. 1 is a side elevation of our appliance fixed to a window frame.
Fig. 2 is a back-elevation.
Fig. 3 is a longitudinal section of fig. 2.
A is the frame or casing plate of the appliance which is secured in position, for
working, to the window frame by screws A.
Bare springs formed of loop_shaped metal rods or wires & kept in position by
means of the plates B³ & screws B³. In preferably the centre of the springs B a loop
or bend B is formed and carries the axis of a barrel or hollow roller (). Contained

page_text: within the barrel or hollow roller C, is a volute spring D, the inner end being fixed
to the axis C while the outer end is fixed to the barrel or roller C. The ends of the
axis Care suitably notched or flattened at the point where they rest, between the
loops B¹ of the springs B thus keeping the axis in a rigid position, during
the revolution of the barrel C¹. The pressure of the barrel or roller C₁ against
the window sash or frame may be regulated by means of the plates B³ and screws B³.
The tightening or roleasing of the screws B³, causes the loop or bend B¹ to increase
or relax its pressure upon the axis C of the barrel C. The periphery of the barrel
or roller C¹ is shown in the annexed drawings as being serrated or toothed; it may
however be left smooth when required, and the surface of the sash against which it
presses may be correspondingly formed or otherwise as desired.
A suitable plate is fixed at each end of the barrel or roller C¹ to protect the
spring D. The normal position of the roller or barrel C₁ is projecing slightly beyond
the window frame as shown in Fig. 3, but when the sash is brought into contact
with it, the roller C" & spring B recede to the position as shewn in Fig. 1, and
the frictional pressure of the periphery of the roller upon the sash is thereby
increased.
The action of the apparatus is as follows:-
On the window being lowered the friction of the sash against the periphery of the.
roller, causes the roller to revolve & to wind up the spring on the axis C & when
moved in an upward or contrary direction will cause the spring to unwind.
It will therefore be seen that the spring controlled barrel or roller will assist the
raising or lowering of the window while at the same time there is sufficient frictional
pressure, between the roller & the sash caused by the pressure of the loop shaped
spring upon the axis to retain the window in any intermediate position when
desirable.
Having now particularly described and ascertained the nature of our said invention,
and in what manner the same is to be performed, we declare that what we claim is:
1. In an apparatus such as described, the combination with the spring barral C¹ or
its axis of one or more springs such as B, or acting in a manner similar to B for
the purpose specified.
2. In an apparatus, such as described the combination with the spring barrel axis (
of a loop shaped spring such as B with tightening plates B2 and screws B³, constructed
and operating substantially as, and for the purpose described, and illustrated in the
accompanying drawings.
3. The complete apparatus or appliance substantially as described and illustrated in
the accompanying drawings.
Dated this 9th day of August 1887.
TOM COOKE.
Witness to signatures,
E. N. LEWIS,
Market Street, Leicester,
Patent Agent.
WILLIAM HENRY BOYENS.