US205414A - Improvement in curtain-cord tighteners - Google Patents
Improvement in curtain-cord tighteners Download PDFInfo
- Publication number
- US205414A US205414A US205414DA US205414A US 205414 A US205414 A US 205414A US 205414D A US205414D A US 205414DA US 205414 A US205414 A US 205414A
- Authority
- US
- United States
- Prior art keywords
- curtain
- tighteners
- cord
- improvement
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47H—FURNISHINGS FOR WINDOWS OR DOORS
- A47H3/00—Fastening, clamping, or guiding devices for the bands or cords of curtains or the like
- A47H3/02—Fastening, clamping, or guiding devices for bands or cords
- A47H3/08—Cord-tensioning devices for curtains with two cords
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0889—Path of movement of the finally actuated member
- F16H2007/0891—Linear path
Definitions
- This invention relates to that class of devices in use for tightening the cords ofwindow-blinds; and it consists in such a device, constructed as hereinafter described.
- A represents a suitable piece of sheet metal having a longitudinal slot, c', and being bent twice at right angles at either end to form tangs a, which are perforated, as shown, for the securing screws or tacks. This portion of the device is conveniently struck up at one operation by means of a die.
- a screw, B extends from end to end of the plate A, being secured after the manner of a rivet at b', but being free to turn. At the opposite end the screw is furnished with a milled head, b.
- a block, C appropriately threaded, is mounted upon the screw B, and to it is secured the roller D by means of a screw, c,
- the rollerD is adapted to receive the curtain-cord, whose tension may be readily regulated by turning the screw B by means of the milled head b.
- the device is thoroughly eicient in operation, simple in construction, and trifling in cost.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Description
T. E, PORTER 8L D A. BEATSON.
Curtain-Gord Tghtener.
Patenmted June 25, 1878.
Nol 2o5,414
N.PETERS. P'HOTO-LPTMOGRAPHER. WASHINGTON. D\ C.
UNITED STATES PATENT OFFICE.
EREDERIOK E. PORTER, OF BALTIMORE, MD., AND DAvID A. REATsON, OE
- NEW YORK, N. Y.
IMPROVEMENT IN CURTAIN-CORD TIGHTENERS.
Specification forming part of Letters Patent No. 205,414, dated June 25, 1878; application iiled May 31,1878.
I'o all whom it may concern:
Be it known that we, FREDERICK E. POR- TER, of Baltimore, Maryland, and DAVID A. BEATsON, of the city, county, and State of New York, have invented certain new and useful Improvements in Curtain-Gord Tighteners and we hereby declare the same to be fully, clearly, and exactly described as follows,refer ence being had to the accompanying drawings, in which the said device is illustrated in front and side elevation.
This invention relates to that class of devices in use for tightening the cords ofwindow-blinds; and it consists in such a device, constructed as hereinafter described.
In the drawings, A represents a suitable piece of sheet metal having a longitudinal slot, c', and being bent twice at right angles at either end to form tangs a, which are perforated, as shown, for the securing screws or tacks. This portion of the device is conveniently struck up at one operation by means of a die.
A screw, B, extends from end to end of the plate A, being secured after the manner of a rivet at b', but being free to turn. At the opposite end the screw is furnished with a milled head, b. A block, C, appropriately threaded, is mounted upon the screw B, and to it is secured the roller D by means of a screw, c,
passing through a disk, c', and into the block C. The rollerD is adapted to receive the curtain-cord, whose tension may be readily regulated by turning the screw B by means of the milled head b.
As is evident, the device is thoroughly eicient in operation, simple in construction, and trifling in cost.
Having thus described our invention, what we claim as new, and desire to secure by Letfitnesses as to F. E. Porter:
H. W. B. REID, A. H. J EFFERIs.
Titnesses as to David A. Bentson.: J EssE K. FURLONG,
EDw. J. KNIGHT.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US205414A true US205414A (en) | 1878-06-25 |
Family
ID=2274818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US205414D Expired - Lifetime US205414A (en) | Improvement in curtain-cord tighteners |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US205414A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5457967A (en) * | 1993-03-30 | 1995-10-17 | Sipra Patententwicklungs Und Beteiligungsgesellschaft Mbh | Draw-off device with adjustable tension for circular knitting machine |
-
0
- US US205414D patent/US205414A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5457967A (en) * | 1993-03-30 | 1995-10-17 | Sipra Patententwicklungs Und Beteiligungsgesellschaft Mbh | Draw-off device with adjustable tension for circular knitting machine |
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