Attaching Blinds to Rollers.
Year: 1895

page_text: Date of Application, 11th June, 1895-Accepted, 20th July, 1895
Attaching Blinds to Rollers.
We, WILHELM F. D. GRENINGER and FREDERICK SCHWENKEL, of
Bridgeport, Connecticut, United States of America, Manufacturers, 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 has for its object to provide novel means for attaching blinds
to rollers which shall render the use of tacks unnecessary, shall be applicable
to wide or narrow blinds, will hold the blind just as firmly at the center
as at the ends, will be so simple as to enable any person skilled or unskilled to
attach a blind to a roller and which shall be so inexpensive as to be within the
reach of all.
With these ends in view we have devised the novel device for attaching
blinds to rollers of which the following description in connection with the
accompanying drawing is a Specification, numbers being used to designate the
several parts.
Fig. 1 is an elevation partly in section illustrating the use of our novel device in
attaching a wide blind to a roller, a supplemental clamp being applied at the center
of the roller.
Fig. 2 an end elevation as seen from the right in Fig. 1.
Fig. 3 a section on the line x-x in Fig. 1 looking toward the right, the
supplemental clamp being removed.
Fig. 4 a similar view with the supplemental clamp in place the same as in
Fig. 1.
Fig. 5 a section on the line y-y in Figs. 2 and 3, the blind being removed.
Fig. 6 a corresponding view of the other end of the roller, the winding device
being in section, and
Fig. 7 is an end elevation corresponding with Fig. 6, the cap being removed.
1 denotes the roller and 2 the blind. The roller which may be of metal or wood
is provided with a longitudinal groove 3, at one end with a winding device
designated as a whole by A and at the other end with a plate 4 having the usual
trunnion 5 and an oblique slot 6. The winding device and the trunnion engage
suitable fixtures, not shown, upon a casing in the ordinary manner. B denotes the
blind clamp which is made of sheet metal and is curved to correspond approximately
with the curvature of the roller and is provided at one end with an eye 7 adapted
to receive a rod 8 and at the other end with a socket 9 formed by curving the metal
of the clamp back upon itself, said socket being adapted to receive the end of the
blind. 10 denotes caps having openings 11 at the center through which the
trunnion and the engaging shaft of the winding device pass and which are adapted
to slide over the ends of the roller, covering plate 4 at one end and the winding
device at the other end and also sliding over the ends of the blind clamp whereby
the latter is locked in position upon the roller. In attaching a blind to the roller
the end of the blind is inserted in socket 9 as clearly shown in Figs. 3 and 4.
In attaching ordinary sized blinds the rod 8 may or may not be used in eye 7. If
used one end of said rod is inserted in groove 3 passing under the cap "a" of the
winding device as clearly shown in Fig. 6, the other end of the rod being then
dropped into oblique slot 6 in plate 4. The blind is then folded over the end of
the metal of the clamp the bottom of the socket being downward and the blind

page_text: hanging downward and the clamp is laid agains the roller as in Figs. 3 and 4.
The clamp is then locked securely in position by passing caps 10 over the ends
of the roller and over the ends of the clamp, a feld of the blind being thus held
between the clamp and the roller. The caps in practice are made to go on tight
enough so that they will stay in place by friction without danger of their slipping
off. It will be seen that the caps not only hold the clamp firmly in position but
also prevent the rod if used from slipping out under any circumstances. When the
rod is used one end of the clamp is attached to the roller by the engagement of
the ends of the rod with
"
cap a and oblique slot. 6 in plate 4, leaving the socket
end free so that the end of a blind may be inserted in the socket or removed
therefrom without detaching the clamp from the roller.
In order to prevent the possibility of the clamp dropping away from the roller in
case of the attachment of a heavy blind to a long roller we provide one or more
supplemental clamps C which are curved to partially inclose the roller and to
inclose the blind clamp, the supplemental clamps of course extending more than
half way around the roller and each clamp being provided with an eye 12. When
supplemental clamps are used we cut openings 13 in the bliud clamp removing
eyes 7 entirely at the openings so that the eyes 12 of the supplemental clamps will
register with the eye 7 of the clamp on opposite sides of the socket as is clearly
shown in Fig. 1 in which we have only shown one supplemental clamp, that being
ordinarily quite sufficient to hold any blind on a roller, although more may be
used in case of an exceptionally wide blind. The rod 8 is passed through the
eye 7 and also through eye 12 as clearly shown in Fig. I so that the same rod will
hold both the blind clamp and the supplemental clamp in place.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:
1. The combination with a blind roller having a longitudinal groove 3 and a
clamp having at one end an eye adapted to lie in said groove and at the other
end a socket adapted to receive the end of a blind, of caps 10 which pass over
the ends of the roller and over the ends of the clamp whereby the clamp and
with it the blind are securely locked to the roller.
2. The combination with a blind roller having a longitudinal groove 3 and a
clamp having at one end an eye adapted to lie in said groove and at the other end
a socket adapted to receive the end of a blind, of a rod adapted to pass through
the eye, means for securing the ends of the rod at the ends of the roller, and
caps 10 adapted to pass over the ends of the roller and over the ends of the
clamp the latter clamping a fold of the blind between itself and the roller.
3. The combination with a blind roller having a groove 3, and a clamp B having
at one end an eye adapted to lie in the groove and an opening 13, and at the other
end a socket adapted to receive the end of the blind, of a supplemental clamp C
having an eye 12 adapted to lie in the opening, said clamp C partially inclosing
the roller and inclosing clamp B, a rod adapted to pass through eyes 7 and 12,
means for securing the ends of the rod at the ends of the roller and caps 10 adapted
to pass over the ends of the roller and over the ends of clamp B the latter
clamping a fold of the blind between itself and the roller.
Dated this 18th day of May A.D. 1895.
WILHELM F. D. GRENINGER.
FREDERICK SCHWENKEL.