Improved Means and Appliances for Winding and Unwinding Shop and like Blinds.
Year: 1894

page_text: Date of Application, 6th Sept., 1894
Complete Specification Left, 1st Mar., 1895-Accepted, 6th Apr., 1895
PROVISIONAL SPECIFICATION.
Improved Means and Appliances for Winding and Unwinding Shop
and like Blinds.
I, OLIVER WESTLAKE, of 147/9 Great College Street, Camden Town, Shop
and Window Blind Manufacturer, do hereby declare the nature of this invention
to be as follows:-
This invention has for object, the raising and lowering of shop and like blinds
and for fixing them temporarily at any part for more or less shielding goods from
the sun's rays.
To carry my invention into practice, I employ a back plate in or to which a
frame or casing or a barrel can be secured in such manner that it can be turned
and secured at any desired angle.
The frame or casing or barrel is shaped internally for the reception of worm and
worm wheel or bevil pinions capable of being operated by a winch or other handle
for rotating a shaft reaching nearly to the blind, the axle of which by suitable gear
can partake of a motion corresponding to that of the winch handle.
If bevil gear be employed in the barrel or within the limits of the frame or
casing, a jump paul can be used to prevent back action except when the paul is
raised, or otherwise acted on by a key.
The vertical shaft can be suspended at its upper end and set at any desired angle,
and (instead of the barrel or frame), a link or jointed bar can be slid along the back
plate to throw the lower end of the vertical rod outwardly for the crank or other
handle to be fitted on for turning purposes, or handle may be a fixture especially
where blinds have to be set wholly rolled or unrolled, but if the upper gear be of
the worm and worm wheel kind, the blind can he set or held at any desired angle
when opened or lowered.
Dhis ath 1.-
Sanatamshan 1004
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Oliver Westlake.
Improved Means and Appliances for Winding and Unwinding Shop
and like Blinds.
1, OLIVER WESTLAKE, of 147/9 Great College Street, Camden Town, Shop
and Window Blind Manufacturer, 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 has for object, the raising and lowering of outside shop and like
blinds, and for fixing them temporarily at any part for more or less shielding goods
from the sun's rays.
To carry my invention into practice, 1 employ a back plate in or to which a
frame or casing or a barrel can be secured in such manner that it can be turned
and secured at any desired angle.

page_text: The frame or casing or barrel is shaped internally for the reception of worm and
worm wheel or bevil pinions capable of being operated by a winch or other handle
for rotating a shaft reaching nearly to the blind, the axle of which by suitable
gear can partake of a motion corresponding to that of the winch handle.
If bevil gear be employed in the barrel, or within the limits of the frame or
casing a jump paul can be used to prevent back action except when the paul is
raised, or otherwise acted on by a key.
The vertical shaft can be suspended at its upper end and set at any desired angle
and (instead of the barrel or frame) a link or jointed bar can be slid along the back
plate to throw the lower end of the vertical rod outwardly for the crank or other
handle to be fitted on for turning purposes, or handle may be a fixture especially
where blinds have to be set wholly rolled or unrolled but if the upper gear be of
the worm and worm wheel kind the blind can be set or held at any desired angle
when opened or lowered.
My invention will be clearly understood by reference to the annexed drawings.
According to Figure 1, I represent a back plate A fixable to a door window or
other stile. This plate has two lugs B, B, projecting from it, between which is a
frame or casing C having a head D. The hollow of this box so formed contains a
couple of bevil wheels E, E', in gear, one being on a short axle F and the other on
the lower end of a rod or shaft G. The wheel E' has a somewhat deep head H
with ratchet like teeth in or on its upper face for the reception of a drop paul J in
said head. This paul has a hole in it, as at Figure 2, with an angled upper surface
to enable it to be raised clear of the ratchet teeth when a pin such as K is pushed
into it, said pin being preferably attached to a chain L for connecting it with a
removable handle M the shank of which is shaped to readily be engaged over the
exposed end of the short axle F.
The box is affixable to any position within about three quarters of a circle
This allows
around its pivot stud N and can be locked by the nut P as desired.
the box D to be sett round to the desired angle for the turning of the handle M to
be effected from the right, the left, the front, or from either face of a stile,
although the plate A be affixed to the front of a stile.
The shaft G is of such length from its supporting collar Qas to terminate near
to where the blind roller R is situated, said roller R being caused to rotate by the
gear S as will be readily understood from an inspection of the upper part of
Figure 1. The roller R and its blind can be enclosed in the usual box or shrouding
as well as the gear S and its back plate T. Instead of the bevil gear S being
arranged at the upper part as represented a worm U, as at Figure 3, can be fitted
on the upper end of the shaft G for gearing into a worm wheel V (Figure 3) this
being on the axle W of the blind roller R. Worm gear is applicable to the lower
end of the shaft G if so desired as indicated at Figure 4, as well as to the upper
end, as at Figure 3, or in conjunction with bevil gear at top or at bottom, or it may
be without bottom gear, as at Figure 5, where the shaft G can be drawn away
from a stile by an outward pull at its lower end to enable the slider X to drop
down a slot formed in the plate A and bring the link Y into a horizontal position
as shown by dotted lines in said figure, the link Y turning on its pivot pins Z, Z,
which will enable the shaft G to be rotated by a handle turned horizontally to
raise or to lower the blind.
The use of worm gear forms an easy method of fixing or locking a blind at any
desired position, and enables the paul J, ratchet head H, and pin K, Figure 1, to
be dispensed with.
It will be observed that the outward pull of the shaft G as described with
reference to Figure 5 necessitates some such arrangement of strap as shown at a,
Figure 3, so that it can turn on the roller axle W and accommodate itself to such
pull out, but probably the loose fitting or touch of the gear teeth in the case of
bevil gear will answer well, the vibratory are being very small at the upper part
against that of the lower part, and is in proportion to the length of the shaft G
determined by the height of, say, a shop frout.

page_text: I may here mention that according to the present system, two methods are
adopted, one is by a spring in the roller around which the blind becomes wrapped,
the normal condition of the spring being tension, which is increased as the blind is
being drawn from its roller, the other is by a cord or rope wrapped round one end
of the roller, the wrapping increasing as the blind is being lowered.
In the first case a separate appliance is required to fix the blind at the required
position, and in the second a separate appliance has to be fitted for the attachment
of the cord or rope.
By my invention, the whole of the raising and lowering mechanism is complete
and only requires a handle to be placed on the free end of the shaft G to raise, to
lower, to set at any angle, or to operate the blind in any way, the blind being
temporarily yet rigidly fixed without manipulation of cords side rods, brackets, or
extraneous appliances as at present.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The means and appliances for raising and lowering shop outside roller blinds,
as described and substantially as represented in the annexed drawings.
2. Dispensing with springs and cords in shop outside blinds and substituting
upper bevil gear, as at Figure 1, of the annexed drawings, or worm gearing as in
Figure 3 or Figure 4 in conjunction with a rod G as a means of transmitting
motion as and for the purposes set forth.
3. The link and slider arrangement of mechanism seen at Figure 5 of the
drawings when used in connection with upper bevil or worm gear for the purposes
described.
Ine 1st day or Muren 1839.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Oliver Westlake.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Oliver Westlake.