Improvements in and relating to Rollers for Window Blinds.
Year: 1889

page_text: Date of Application, 18th Sept., 1889
Complete Soecification Left, 15th May, 1890-Accepted. 28th June, 1890
PROVISIONAL SPECIFICATION.
Improvements in and relating to Rollers for Window Blinds.
1, FREDERICK SNAPE, of 59 Avondale Road, Denmark Park in the County of
Surrey, Tailors' Cutter do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in and relating to rollers for window blinds
the object of the invention being to construct blind rollers in such a manner that the
blinds will not require nailing tacking or otherwise aflixing to the rollers whereby
the ends of the blinds are frequently torn, frayed or otherwise damaged. Blind
rollers constructed in accordance with this invention may also be elongated so as to
enable the rollers to be fitted to a somewhat wider window if desired. The invention
also comprises improved ineans for raising and lowering roller blinds.
According to this invention I provide a roller of required length and small in cross
section which I place in a loop made on the end of the blind specially for its reception.
I then place this small roller between two longitudinal sections of a larger roller
hollowed out so as to take the small roller aforesaid and so constructed that when
fitted together a slot, or aperture from the centre of the circumference on one side and
extending the whole length is left and through this slot the blind passes. These two
longitudinal sections are held in position by metal tube with corresponding slots
which are slid over the ends of the said sections, and over the edge of the blind..
These tubes are provided with short spindles on which the roller so made rotates.
On the end of one of these tubes I also affix an enlarged disc and a ratchet wheel with
a hole drilled through the spindle between them and countersunk on one side through
which said hole the blind cord can be passed and knotted and then wound up between
the disc and ratchet wheel. One of the teeth of the ratchet wheel normally bears
against a stop forming part of a lever affixed to the bracket in which the roller.
rotates. Against one end of this lever bears the blind cord in such a manner that
when the cord is pulled the stop is released from the ratchet wheel and the roller
revolves by the continued pull unwinding the cord, thus raising the blind. To lower
the blind the cord may be pulled to release the ratchet wheel and tlie blind drawn.
down by hand.
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1000
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Invention
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CASTLE SMITH,
Per F. W. Golby,
Office, 54, Fleet Street, London, E.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Rollers for Window Blinds..
1, FREDERICK SNAPE, of 59 Avondale Road, Denmark Park, in the County of
Surrey, Tailors Cutter, do hereby declare the nature of this invention and in what
manner the same is to be perfornied, to be particularly described and ascertained in
and by the following statement :-
This invention relates to improvements in and relating to rollers for window blinds,
the object of the invention being to construct blind rollers in such a manner that the
blinds will not require nailing, tacking, or otherwise affixing to the rollers whereby
Blind
the ends of the blinds are frequently torn, frayed, or otherwise damaged.
rollers constructed in accordance with this invention may also be elongated so as to
enable the rollers to be fitted to a somewhat wider window if desired.
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page_text: And in order that my invention may be fully understood and carried into practice
I will describe the same with reference to the accompanying drawings in which similar
letters indicate corresponding parts throughout.
Figure 1 is an elevation of a blind roller according to my invention Figure 2 is a
longitudinal section of the roller; Figures and 4 shew the metal ends; Figure 5
shews the section of the clip A shewn in Figure 1; and Figure 6 shews a modification
of tlie roller ends.
According to this invention I provide a roller D of required length and small in
cross section which said roller DI place in a loop or hem made on the end of the
blind specially for its reception. I then place the small roller D between the two
longitudinal sections of a larger roller B with a central recess C to take the small
roller Daforesaid. If desired the sections of the roller B may be so constructed that
when fitted together a slot or aperture from the centre to the circumference on one
side and extending the whole length is left and through this slot the blind may pass.
This is easily effected by rebating or undercutting the edge of one or both sections B
to allow for the thickness of the blind. These two longitudinal sections B are held in
position by metal tubes E and F with corresponding longitudinal slots which said
tubes are slid over the ends of the sections of the roller and over the edge of the
blind. Figure 5 shows a section of one of the tubes E or F. Those tubes are
provided with short spindles e, f on which the roller rotates in brackets in the ordinary
manner. A is a strap or clip split as shewn at Figure 5, so that it may be passed over
the ends of the roller B when made up to assist in keeping the sections of the roller
together.
A cheap and simple form of split roller may be produced by dividing an ordinary
roller longitudinally with a saw that will take out a wide saw scarf. An ordinary
lath similar to that used at the bottom of the blind, may then be passed through the
hem of the blind as before described, and the lath then placed between the sections of
the roller, the said sections being secured by the metal ends.
The tubes E and F may be close over the roller as shewn in Figure 1, or they may
be drawn out slightly so as to lengthen the roller and may be secured in any position
by screws countersunk when desired:
In the modification of my invention shown in Figure 6 the split tubes are dispensed
with and two or more metal prongs T are rigidly affixed to, or formed in one with,
the ends G and H and fit over the ends of the roller or in longitudinal grooves made
to receive then in the circumference of the roller if desired. These prongs like
the split tubes E and F may be drawn out slightly to elongate. the roller when.
required.
Since filing my Provisional Specification I have ascertained that a blind roller end
such as is described in my said Provisional Specification consisting of a disc and
ratchet wheel provided with a pawl or stop released by the action of pulling the blind
cord is old and in common use and I therefore wish to disclaim any right to the
exclusive use of such blind-roller end. I have also ascertained that blind rollers split
longitudinally have likewise been adopted and that they have been used in combination
with a central rod such as D shewn in the drawings hereunto annexed, I therefore
shall make no claim to the use per se of a longitudinally split roller or to a
longitudinally split roller in combination with a central rod.
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:-
:-
(1) In combination with a split roller having a central recess to receive a small
roller previously passed through a hem or loop on the upper edge of the blind, the
metal ends with split tubes fitting over the circumference of the said rollers, and with
or without one or more split straps A substantially as and for the purpose hereinbefore
set forth and illustrated in Figures 1 to 5 of the accompanying drawings.
(2) The metal ends having tubes E and F attached thereto, said tubes being split

page_text: longitudinally so as to pass over the end of the roller and ego of the blind whereby
the effective length of the blind roller may be slightly increased when required,
substantially as and for the purpose herein described and illustrated in the
accompanying drawings.
(3) The modified form of my invention shewn and described with reference to
Figure 6 of the accompanying drawings and for the purpose specified.
(4) My improvements in and relating to window blind rollers substantially as
described and shewn.
CASTLE SMITH,
Per F. W. Golby,
"Invention" Office, 54, Fleet Street, London, EC., Agent for the Applicant.