US145785A - Improvement in curtain-fixtures - Google Patents

Improvement in curtain-fixtures Download PDF

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US145785A
US145785A US145785DA US145785A US 145785 A US145785 A US 145785A US 145785D A US145785D A US 145785DA US 145785 A US145785 A US 145785A
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Prior art keywords
spindle
curtain
roller
fixtures
ball
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/90—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions

Definitions

  • Figure I is an elevation of the roller end and spindle as clamped by the ball
  • Fig. 2 is a similar view, with the ball out of action
  • Fig. 3 represents the roller and parts by a longitudinal section.
  • the roller a, spring b, and spindle c are of a character similar to that before employed, except that the spindle is plain instead of bcing notched.
  • the spindle is inserted at the end of the wooden rod d, around which the spring is coiled, one end of that spring being attached to the rod, the other end to the wooden roller a.
  • the metallic roller end h is made with a scroll-flange, 2, and -guard-iiange 3, and the ball t' is inserted between these and the spindle o, the spindle at this point being cylindrical or slightly elliptical.
  • the cap l is made to retain the ball 'i in place, and also to serve as an outer bearing for the spindle.
  • the curtain-lixture made with a roller end, and a frictional clamp interposed between the inner surface of the roller end and the cylindrical or smooth spindle, substantially as set forth.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Description

H'. H. BunmTT.
Curtain-Fixtures.
No, 145,785. Paientednec. 23,1873,
UNITED STATES PATENT FFICE.
HARVEY H. BURRITT, OF BELLEVILLE, NEW JERSEY.
IMPROVEMENT IN CURTAIN-FIXTURES.
Specification forming part of Letters Patent No. 145,785, dated Dr cemher 23,1873; application led October 25, 1873.
To all 'whom it may concjrfn:
Beit known that I, HARVEY H. BURRITT, of Belleville, in the county of Essex and State of New Jersey, have invented an Improvement in Curtain-Fixtures, of which the following is a specification:
Curtain-rollers have been made with a spring to revolve the roller and draw up the curtain, and a pawl has been employed to engage with the notched stationary spindle; but the end of the pawl is liable to become rounding and not to hold, and the notched spindle has to stand in a Xed position relative to the pawls when they fall, and so that the centrifugal force can be availed of in throwing the pawls out of action. Balls have also been used between stops formed by blocks on the roller ends, or by notches in the spindle and stops upon the roller end. My invention is made for dispensing with a pawl, and for using a cylindrical instead of a notched spindle. I employ, in
addition to the cylindrical spindle, a scroll' flange in the roller end, and a ball that is placed between the scroll-flange and cylindrical spindle, in such a manner that the centrifugal force throws the ball outwardly in the :oller end; but when the revolution of the 1-ller is arrested, the ball is allowed to fall between the spindle and scroll and block the arts, so that the roller cannot revolve by the Q-tion of the spring until the curtain is drawn down suiciently to liberate the ball and free the roller end from the clamping action upon the spindle.
In the drawing, Figure I is an elevation of the roller end and spindle as clamped by the ball; Fig. 2 is a similar view, with the ball out of action; and Fig. 3 represents the roller and parts by a longitudinal section.
The roller a, spring b, and spindle c are of a character similar to that before employed, except that the spindle is plain instead of bcing notched. The spindle is inserted at the end of the wooden rod d, around which the spring is coiled, one end of that spring being attached to the rod, the other end to the wooden roller a. The metallic roller end h is made with a scroll-flange, 2, and -guard-iiange 3, and the ball t' is inserted between these and the spindle o, the spindle at this point being cylindrical or slightly elliptical. The cap lis made to retain the ball 'i in place, and also to serve as an outer bearing for the spindle. It is preferable to secure the metallic roller end h by the nails o, and to make the cap l of a separate disk, secured by an inward flange ot' the cylindrical cap that extends around the wooden portion of the roller. A short cylinder may be employed in place of the ball.
I claim as my invention- The curtain-lixture made with a roller end, and a frictional clamp interposed between the inner surface of the roller end and the cylindrical or smooth spindle, substantially as set forth.
Signed by me this 22d day of October, A. D. 1573.
H. H.- BURRITT.
Witnesses:
GEO. T. PINCKNEY, CHAs. H. SMITH.
US145785D Improvement in curtain-fixtures Expired - Lifetime US145785A (en)

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