US88179A - Improved cord-tightener for curtain-fixtures - Google Patents
Improved cord-tightener for curtain-fixtures Download PDFInfo
- Publication number
- US88179A US88179A US88179DA US88179A US 88179 A US88179 A US 88179A US 88179D A US88179D A US 88179DA US 88179 A US88179 A US 88179A
- Authority
- US
- United States
- Prior art keywords
- tightener
- fixtures
- cord
- curtain
- wedge
- 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
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- 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
- Fixtures 'of this class are either liable to become wedged too tight, or else not to hold the pulley under the strain of the' cord.
- My said invention consists in a cord-tightener, formed by combining the wedge and block of the pulley with a rack, so that the block and wedge, acting against each other, throw a tooth into the said rack, and detain both parts to whatever point they may be adjusted, thus secnriugfthe pulley without the parts binding tightly, as heretofore, and at the same time the usual appearance of the cord-tightener is maintained.
- the slide a is formed with eyes at the ends, for'attaching it by screws or tacks, as at 2,25 It also has rack-teeth, 3, as before usual, and the returned edges, between which the block b and wedge c slide.
- Figure 1 is a vertical section of said cord-tightener
- the pulley d is attached wedge c, and a projection, or tooth, 4, upon c, is provided, ⁇ so that it is pressed back into the rack-teeth 3 by the inclined surfaces of b and c, that come in contact.
Description
Q dei @Statuut HUBERT L. JUDAD, OF BROOKLYN, NEW YORK.
Letters Patent No. 88,179, lated .Ma/rch 23, 1869.
IMPROVED CORD-TIGHTENER FOR. CURTAIN-FIXTURES.
Thi Schedule referred to in these Letters Patent and making part of the same,
. To all whom it may concern:
Be it known that'I, HUBERT L. JUDD,.of Brooklyn, in the county of Kings, and State of New York, have invented and made an Improvement in Cord-Tighteners for Curtain-Fixtures; and I do herebydeelare the following to be a full, clear, and exact description of the said invention, reference being had to the annexed drawing, making part of this specification, whereinand Figure 2 is a front view of the same.
Similar marks of reference denote the same parts.
Gord-tiglteners have heretofore been made with a wedge sliding in a grooved stock, and acting to clamp the sliding block that carries the pulley.
Fixtures 'of this class are either liable to become wedged too tight, or else not to hold the pulley under the strain of the' cord.
Other cord-tighteners have been made, in which a rack and pawl have been employed.
' My said invention consists in a cord-tightener, formed by combining the wedge and block of the pulley with a rack, so that the block and wedge, acting against each other, throw a tooth into the said rack, and detain both parts to whatever point they may be adjusted, thus secnriugfthe pulley without the parts binding tightly, as heretofore, and at the same time the usual appearance of the cord-tightener is maintained.
In the drawing, the slide a is formed with eyes at the ends, for'attaching it by screws or tacks, as at 2,25 It also has rack-teeth, 3, as before usual, and the returned edges, between which the block b and wedge c slide.
Figure 1 is a vertical section of said cord-tightener,
The pulley d is attached wedge c, and a projection, or tooth, 4, upon c, is provided, `so that it is pressed back into the rack-teeth 3 by the inclined surfaces of b and c, that come in contact.
The parts slide freely when the inclined surfaces of b and c' are sufciently separated to allow the tooth 4 to be drawn from the ,rack 3. Y
By this construction of cord-tightener, the advantageous features of the wedge and ratchet-fixtures are combined, the disadvantages of both are removed, and the appearance of the ordinary wedge cord-tightener is maintained.
. The block of the pulley, acting to press the end of the wedge against the bottom surface of the slide,pre vents the edges of the Yslide being bent, as has heretofore frequently been the case, by the block and wedge acting against each other, as in the ordinary wedge-tixture.`
What I claim, and desire-to secure by Letters Patent .is-4
' '.ihe slide a, with rack-teeth 3, or projections in its bottom surface, in combination with the pulley d, blocks b and c, with their inclined surfaces provided I with a tooth, or projection, 4,-that is forced back against said bottom surface of the slide, as and for the'purposes set forth.
In Witness whereof, I have hereunto set my signav ture, this 4th day of February, A. D. 1869.
` HUBERT L. J UDD. Witnesses:
OHAs. H. SMITH, Guo. T. PINCKNEY.
to either the block b or'l
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US88179A true US88179A (en) | 1869-03-23 |
Family
ID=2157662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US88179D Expired - Lifetime US88179A (en) | Improved cord-tightener for curtain-fixtures |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US88179A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220065018A1 (en) * | 2020-08-25 | 2022-03-03 | Pella Corporation | Fenestration unit operator tensioner |
-
0
- US US88179D patent/US88179A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220065018A1 (en) * | 2020-08-25 | 2022-03-03 | Pella Corporation | Fenestration unit operator tensioner |
| US11725446B2 (en) * | 2020-08-25 | 2023-08-15 | Pella Corporation | Fenestration unit operator tensioner |
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