US91207A - Improvement in let-off mechanism for looms - Google Patents
Improvement in let-off mechanism for looms Download PDFInfo
- Publication number
- US91207A US91207A US91207DA US91207A US 91207 A US91207 A US 91207A US 91207D A US91207D A US 91207DA US 91207 A US91207 A US 91207A
- Authority
- US
- United States
- Prior art keywords
- looms
- warp
- improvement
- brakes
- frame
- 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
Links
- 238000010276 construction Methods 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/04—Control of the tension in warp or cloth
- D03D49/06—Warp let-off mechanisms
Definitions
- D represents the beam, upon which the warp is Wound.
- B and B are two standards, connected with the other parts of the loom.
- F ff' is a frame, which slides up and down in the standards H and H', ahd carries the friction-wheel W.
- L and L' are two levers, hung upon brackets, O and O', and pivoted at 1r and p.
- the ends Zand Z', of the levers L and L' act as brakes upon the ends or heads D'and D of the beam D, said brakes being operated by the t'ame F ff'aeting through the springs S and S.
- the frame F ff is raised up, and, exerting less force upon the brakes, allows the beam to turny more freely.
- the friction caused by the brakes is exactly in proportion to the amount of warp upon the beam, and is regulated by the warp itself.
- the springs S S may be-made of any suitable material, and are arranged so that they may be moved along on a and L, bywhich action the leverage on the brakes is changed, that is, the pressure may be adjusted to suit different kinds of' warp.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Description
N. PErElls, PHMWLITHOGMPMER. WAS
Ctlrtrd gitarist @anni @wie LEONARD C. BRIGGS AND ALBERT HOWARD, OF BOSTON, MASSA- CHUSETTS.
Letters .Patent No. 91,207, dated June 15, 1869.
' IMPROVEMENT IN LET-OFF MECHANISM FOR LOOMS.
The Schedule referred to'in these Letters Patent and making part of the same.
*MOH- .To all 'whom 'it 'nm/y conce/ra:
Beit known that we, LEONARD O. Bares-s and AL- BERT HOWARD, both of Boston,.in the county of Suffolk, and State of Massachusetts, have invented eertain new and useful Improvements in Let-Offs for Looms; and we do hereby leclarethat the following is' a full and exact description thereof,t reference being had to the accompanying drawings, and to the letters of referencemarked thereon.
To enable others skilled in tlieart to make and use our invention, we will proceed to describe its construction'and use.
Drawings.
The drawing represents, in perspective, our invention.
As our invention relates to let-off' for looms, we have only shown the beam, with our improvement attached.
D represents the beam, upon which the warp is Wound.
B and B are two standards, connected with the other parts of the loom.
F ff' is a frame, which slides up and down in the standards H and H', ahd carries the friction-wheel W.
The ends a a ofthe lo'wer bar F of the frame, that carries the friction-wheel W, extend outward, as shown,
L and L' are two levers, hung upon brackets, O and O', and pivoted at 1r and p.
The ends Zand Z', of the levers L and L', act as brakes upon the ends or heads D'and D of the beam D, said brakes being operated by the t'ame F ff'aeting through the springs S and S.
The action of our device is this:
The friction-roll W, and its carrying-frame Fff', bein-g governed by the amount of Warp on the beam, that is, it' the beam is full, the frame F f f' will be pressed down, and, acting through the springs S and S', will cause the brakes L and Z, and L' and Z,'to operate against D and D", and thus oler resistance to the movement of the warp.
As the warp unwinds, the frame F ff is raised up, and, exerting less force upon the brakes, allows the beam to turny more freely. In other words, the friction caused by the brakes is exactly in proportion to the amount of warp upon the beam, and is regulated by the warp itself. i
The springs S S may be-made of any suitable material, and are arranged so that they may be moved along on a and L, bywhich action the leverage on the brakes is changed, that is, the pressure may be adjusted to suit different kinds of' warp.
Having thusdescribed our invention, we will proceed to set forth our claim.
Ola/im.
The combination and arrangement of the beam D, wheel W, frame fj" F, levers L L', and springs S S', as described, and for the purpose set forth.
LEONARD C. BRIGGS. ALBERT HOWARD.
Witnesses:
FRANK G. PARKER, A. HUN BERRY.
Publications (1)
Publication Number | Publication Date |
---|---|
US91207A true US91207A (en) | 1869-06-15 |
Family
ID=2160685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US91207D Expired - Lifetime US91207A (en) | Improvement in let-off mechanism for looms |
Country Status (1)
Country | Link |
---|---|
US (1) | US91207A (en) |
-
0
- US US91207D patent/US91207A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US253392A (en) | Device for holding letters | |
US91207A (en) | Improvement in let-off mechanism for looms | |
US87848A (en) | Improvement in harness-connection for looms | |
US216692A (en) | Improvement in balance curtain-fixtures | |
US99044A (en) | Improvement in let-off mechanism for looms | |
US521408A (en) | Philipp goldmann | |
US93632A (en) | Improved bed-bottom | |
US353182A (en) | Henby alfoed walker | |
US89445A (en) | Improvement in take-tip mechanism for looms | |
US80625A (en) | Improvement in let-off mechanism foe looms | |
US86668A (en) | Improvement in shuttle-guide for looms | |
US89365A (en) | Improvement in operating picking-staff xn looms | |
USD3146S (en) | Benjamin cbabtreb | |
US90996A (en) | Improvement in let-off mechanism for looms | |
US92589A (en) | Improvement in automatic fan | |
USD3147S (en) | Benjamin crabtree | |
USD3417S (en) | Design for a carpet-pattern | |
US79520A (en) | Sachusetts | |
US85905A (en) | Improvement in let-off mechanism for looms | |
US75397A (en) | Walter a | |
US64186A (en) | bibcock and john duffy | |
US297019A (en) | Jacob shew | |
US98082A (en) | Improvement in let-off mechanism for looms | |
US84218A (en) | Improvement in spinning-jack | |
US79534A (en) | Combined baby-jumper and cradle |