Means for Attaching Window Blinds to Rollers.
Year: 1896

page_text: Date of Application, 21st Jan., 1896-Accepted, 21st Mar., 1896
COMPLETE SPECIFICATION..
Means for Attaching Window Blinds to Rollers.
I, EDMUND FISHER HARTSHORN, Newark, in the County of Essex, State of
New Jersey, United States of America, Manufacturer, do hereby declare the
nature of my invention, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
My improvement relates to the novel construction of the fastening device by
which the shade is attached to the roller; and also, to the formation of the roller
itself for use with the fastening device.
In the accompanying drawing illustrating my improvement,
Figure 1 is a side view of the roller as I prefer to construct it.
Figure 2 is an end view of Figure 1.
Figure 3 is the preferable form of the shade-holder or fastening device.
Figure 4 is a view of the roller with the shade attached by the shade-holder
shown in Figure 3.
Figure 5 is a sectional view through the roller and shade-holder showing two
positions of the shade when pulling against the holder and
Figure 6 is a modified form of the roller.
In my improvement, I form the roller with a groove or channel a extending
along its side for the reception of the clasp or fastener. This channel may be of
various forms of construction, but the form I deem most preferable is shown in
Figures 1 and 2. As there seen, the channel in the middle partakes of the general
contour of the roller, and has on each side the inclined walls a¹, a'. With this
grooved or channeled roller, I employ a shade-holder or fastener. This is
constructed of suitable thin metal, as steel, and provided with teeth or spurs
which penetrate into the roller. Figure 3. shows one and the preferable form for
this shade-holder but various forms of holders may be used. As shown, the
shade-holder or fastener consists of a broad central portion b slightly rounded to
conform to the contour of the roller and of a width to lie within the channel when
holding the shade on the roller. On one side of this shade-holder, is the spur 6¹
and on the other and opposite side, two spurs 62, 63. As will be observed, all these
spurs point in the same direction but at different angles. The spur 6' is nearly in
the same line with the curve of the holder while the angle of the spurs 62, 63,
approaches nearer to the perpendicular.
In attaching the shade-holder to the roller, the spurs 63, 62 are driven into the
roller, and their formation and direction is such with reference to the spur b¹ that
as the spurs 63, 63 enter the roller they thrust or force forward the spur 6¹ into the
roller at a different angle and thus securely attach the clasp to the roller.
When the shade is fastened to the roller by this device, the edge of the shade
is first placed along the edge a³ of the groove. This insures the shade being
mounted evenly on the roller. The shade holder is placed in the channel, and the
spur b' of the holder forced through the shade into the wood under the edge a¹ of
the channel, the spurs 6 then come down alongside the opposite channel edge a³,
when they are driven down into the roller, and by the same operation the spur bi
forced home under the edge of the channel. As will be seen from Fig. 5, the
spur 6 enters the roller at such an angle that when the shade is pulled against
the shade-holder, as shown in full lines, the spur securely holds the shade on
the roller and the holder cannot be detached; and when the pull of the shade on the
shade-holder is in the opposite direction, as indicated in dotted lines, the spurs b³,
prevent the holder being pulled off the roller and the shade loosened.

page_text: It will be observed from Fig. 4 that the shade-holder lies within the groove or
channel a and the curve of the holders is such that the roller and holder form a
complete circle, and the holder produces the effect of a round roller.
While this is a very desirable feature and contributes to the perfectness of the
roller, it is not absolutely essential and the shade-holder may have any other curve
and even may be flat, if desired, without destroying the effective operation of the
device.
In the modification shown in Fig. 6, the channel has a wall or inclined edge a¹
only on one side, the other edge meeting the curve of the roller. In applying the
clasp to this form of roller, the spurs 62, 63 are driven into the smooth edge of the
channel and the spurs 6' under the wall a', as before, and the shade attached as
described above.
The drawings show a roller formed of wood, but it will be evident that this
clasp can be used equally well on a metal roller constructed with the groove or
channel a and provided with holes for the reception of the spurs b' and 62, 62.
With my particular shade-holder and the projection and arrangement of the
spurs on the same, the holder is securely held in the channel by its own spurs
without separate additional means, and cannot be pulled out by the manipulation
of the shade.
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 a fastening for attaching shades to rollers, the combination with a roller
having a channel along its sides, of a shade holder provided with teeth arranged
and adapted to enter under the edges of the channel, substantially as described.
2. In a fastening for attaching shades to rollers, the combination with the roller
having a chanuel a along its side, of the shade-holder b provided with the spur b
adapted to enter under the edge of the channel, and with the spurs 62, substantially
as described.
3. In a fastening for attaching shades to rollers, in combination a roller having
the channel a provided with the inclined edges a', a², and the clasp b having
the teeth b and 62, adapted to enter the edges of the channel, substantially as
described.
4. In a fastening for attaching shades to rollers, the shade holder 6 having the
teeth band b, arranged at different angles, to enter the roller in a direction
oblique to the circumference whereby as the teeth 62 are driven into the roller,
they cause the teeth 6' to penetrate the roller, substantially as described.
Dated this 16th day of December 1895.
EDMUND FISHER HARTSHORN.
Haseltine, Lake & Co.,
45 Southampton Buildings, W.C., Agents for the Applicant.