US445383A - Let-off mechanism for looms - Google Patents
Let-off mechanism for looms Download PDFInfo
- Publication number
- US445383A US445383A US445383DA US445383A US 445383 A US445383 A US 445383A US 445383D A US445383D A US 445383DA US 445383 A US445383 A US 445383A
- Authority
- US
- United States
- Prior art keywords
- band
- wheel
- toothed wheel
- pulley
- rim
- 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
- 210000003165 Abomasum Anatomy 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002965 rope Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009941 weaving Methods 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
- Tm Norms paens co., pHoro-mnu, wAsHlNcroN, uA c UNrTnD STATES PATnNT @risica WILLIAM E. SHARPLES, OF FALL RIVER, MASSACHUSETTS.
- This invention has for its main object the conversion of a toothed Wheel into a band wheel or pulley, and it is particularly adapted to looms When it is desired to substitute a friction let-off mechanism for one in which a pallet-Wheel or other toothed Wheel is employed as an active element--as, for instance, in the Well-known bob-wire let-off motion.
- Figure l represents a rear View of a portion of a loom in which the pallet-Wheel that is usually mounted on a shaft geared to the Warp-beam is furnished with a band-rim or pulley-face, and a friction-band is passed around said rim or pulley-face and is connected with the vibrator.
- Fig. 2 shows a section through the warp-beam and the vibrator on line Y Y of Fig. l, the gear on the beam being shown by a dotted circle and the frame of the loom being omitted.
- FIG. 3 represents an end view of a portion of a loom in which a two-part ring or annulus that forms a band-rim or pulley-face is secured to thepallet-Wheel to make such wheel a pulley, and a friction-band is passed around said band-rim and connected with the vibrator.
- Fig. et shows a horizontal section, on line Z Z, Fig. 3, through the pallet-wheel and the band-rim attached thereto.
- Fig. 5 represents an end View of a portion of a loom provided With the Well-known bob- Wire let-off mechanism in which apallet-Wheel is employed.
- the warp a passes from the beam A over a vibrator B, and thence through the harnesses and the reed of the lathe over the breast-beam to the receiving or cloth roller in a Well-understood Way.
- the Warp-beam is provided with a gear A', which meshes with a pinion G, located on a shaft g.
- W h en the bob-Wire let-off mechanism is employed,the shaft g is furnished With a palletwheel N, Fig. 5, and a pallet O is pivoted to the frame of the loom above said wheel so as to operate thereon.
- a hanger P is pivoted to the forward end of an arm J and said hanger has secured thereto a bob-Wire or rod p, Whose lower end is-located just above one end of the pallet.
- the arm .l is attached to one end of the vibrator B, which is a rock-shaft having a radially-projecting leaf b, and said arm is provided with a Weight and with a stop-iinger j', which finger determines the normal position of the Wire or rod p With relation to the pallet O.
- the change is greatly simplified, and this may be effected by securing to such toothed wheel in any preferred manner a band-rim or pulley-face, as R, of any preferred form.
- a band-rim or pulley-face as R, of any preferred form.
- the friction-band to be used be in the form of a rope, then the face of the ring or band-rim R may be provided with a circumferential groove; but if the friction-band be a tia-t belt then the face of the ring may be flat.
- afriction let-olf is secured.
- one end of the band K is attached to the arm J and the other end is preferably secured to a hook'or support L, projecting from a slotted plate Z', through which a bolt Z passes into the frame of the looin, so said hook can be adjusted on the frame to take up any stretch in the band K should occasion require; but in place of attaching one end of the band to the hook L said end may be secured to the arin J, as shown by dotted lines in Fig. 3.
- a toothed Wheel can be converted into a pulley by attaching the band-rim thereto, and that when such band-rim is applied to the pallet or other toothed Wheel of a let-off mechanism it enables a friction let-off to be used on the loom.
- a toothed wheel for let-off mechanisms for looms for Weaving having a band-rim detaehably secured to the periphery of the toothed Wheel, substantially as set forth.
Description
(No Model.)
W. E. SHARPLBS. l LET-OFP M -EHANISM FR LOMS. 10.445,383.
Patented Jan. 27, 1891.
Ahovuetl.
Tm: Norms paens co., pHoro-mnu, wAsHlNcroN, uA c UNrTnD STATES PATnNT @risica WILLIAM E. SHARPLES, OF FALL RIVER, MASSACHUSETTS.
LET-OFF MECHANISlVl FOR LOOMS.
SPECIFICATION forming part of Letters Patent No. 445,383, dated January 2?, 189i.
Application tiled November 25, 1887. Serial No. 256,051. (No model.)
To aZZ whom t may comerm- Be it known that LWILLIAM E. SHARPLES, of Fall River, in the county of Bristol and State of Massacl1usetts,havo invented a new and useful Improvement in Let-Off Mechanisms for Looms; and I do hereby declare the following specification, taken in connection with the accompanying drawings, forming a part of the same, to be a description thereof.
This invention has for its main object the conversion of a toothed Wheel into a band wheel or pulley, and it is particularly adapted to looms When it is desired to substitute a friction let-off mechanism for one in which a pallet-Wheel or other toothed Wheel is employed as an active element--as, for instance, in the Well-known bob-wire let-off motion.
The invention consists in certain features of construction and arrangement hereinafter described and claimed.
In the accompanying drawings, Figure l represents a rear View of a portion of a loom in which the pallet-Wheel that is usually mounted on a shaft geared to the Warp-beam is furnished with a band-rim or pulley-face, and a friction-band is passed around said rim or pulley-face and is connected with the vibrator. Fig. 2 shows a section through the warp-beam and the vibrator on line Y Y of Fig. l, the gear on the beam being shown by a dotted circle and the frame of the loom being omitted. Fig. 3 represents an end view of a portion of a loom in which a two-part ring or annulus that forms a band-rim or pulley-face is secured to thepallet-Wheel to make such wheel a pulley, and a friction-band is passed around said band-rim and connected with the vibrator. Fig. et shows a horizontal section, on line Z Z, Fig. 3, through the pallet-wheel and the band-rim attached thereto. Fig. 5 represents an end View of a portion of a loom provided With the Well-known bob- Wire let-off mechanism in which apallet-Wheel is employed.
In looms as ordinarily constructed the warp a passes from the beam A over a vibrator B, and thence through the harnesses and the reed of the lathe over the breast-beam to the receiving or cloth roller in a Well-understood Way. The Warp-beam is provided with a gear A', which meshes with a pinion G, located on a shaft g.
W h en the bob-Wire let-off mechanism is employed,the shaft g is furnished With a palletwheel N, Fig. 5, and a pallet O is pivoted to the frame of the loom above said wheel so as to operate thereon. A hanger P is pivoted to the forward end of an arm J and said hanger has secured thereto a bob-Wire or rod p, Whose lower end is-located just above one end of the pallet. The arm .l is attached to one end of the vibrator B, which is a rock-shaft having a radially-projecting leaf b, and said arm is provided with a Weight and with a stop-iinger j', which finger determines the normal position of the Wire or rod p With relation to the pallet O. When the vibrator and its arm J are rocked by a strain upon the Warp, which strain is produced by the forward movement of Iche lathe in beating` up a pick, the Wire or rod p Will depress the forward end of the pallet, thereby allowing the Wheel N to turn one tooth and a small quantity of yarn to be delivered from the beam A.
lt is often very desirable to substitute a friction let-off mechanism (in which a pulley and a band passing around the same are used) for one inwhich a pallet-Wheel or other toothed wheel is employed; but as such VWheels are usually secured to their shafts, so they cannot be removed Without considerable loss of time and much trouble, such a substitution becomes comparatively costly, (if the toothed wheel be taken off and a pulley be put on,) as Well as entailing an equal amount of time and trouble when it is desired to remove the friction let-off and use one in which a toothed Wheel is employed. Y
By arranging to convert the toothed wheel into a pulley in accordance With my invention the change is greatly simplified, and this may be effected by securing to such toothed wheel in any preferred manner a band-rim or pulley-face, as R, of any preferred form. If the friction-band to be used be in the form of a rope, then the face of the ring or band-rim R may be provided with a circumferential groove; but if the friction-band be a tia-t belt then the face of the ring may be flat.
For convenience in applying and removing IOO the baud-rim or p Lilley-face R, I prefer to make it in two parts or halves, as shown in Fig. 3, and bolt said parts together, as at o, so the ring-Will be immovable on the toothed Wheel.
By dispensing with the pallet O and the hanger P and its Wire p and passing a friction-band K around the ring or pulley-face R, and properly attaching the ends of said band, afriction let-olf is secured. As shown in Fig. 3, one end of the band K is attached to the arm J and the other end is preferably secured to a hook'or support L, projecting from a slotted plate Z', through which a bolt Z passes into the frame of the looin, so said hook can be adjusted on the frame to take up any stretch in the band K should occasion require; but in place of attaching one end of the band to the hook L said end may be secured to the arin J, as shown by dotted lines in Fig. 3.
From the foregoing it will be understood that a toothed Wheel can be converted into a pulley by attaching the band-rim thereto, and that when such band-rim is applied to the pallet or other toothed Wheel of a let-off mechanism it enables a friction let-off to be used on the loom.
That I claim, and desire to secure by Letters Patent, is-
l. The combination, with a toothed Wheel, of a band-rim secured to the periphery of the toothed wheel, substantially as set forth.
2. A toothed wheel for let-off mechanisms for looms for Weaving, having a band-rim detaehably secured to the periphery of the toothed Wheel, substantially as set forth.
The combination of the Warp-beam and its gear A', the shaft g, having a pinion G, a toothed wheel seeuredto said shaft, a' bandrim or pulley-face secured to said toothed Wheel, a Weighted vibrator, and a frictionband K, passed partially around said bandrini or pulley-face and connected With the Vibrator, substantially as set forth.
XVILLIAM E. SHARPLES.
Witnesses:
RICHARD I. BORDEN, HERBERT Il. HoRToN.
Publications (1)
Publication Number | Publication Date |
---|---|
US445383A true US445383A (en) | 1891-01-27 |
Family
ID=2514274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US445383D Expired - Lifetime US445383A (en) | Let-off mechanism for looms |
Country Status (1)
Country | Link |
---|---|
US (1) | US445383A (en) |
-
0
- US US445383D patent/US445383A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US445383A (en) | Let-off mechanism for looms | |
US495766A (en) | Itnesses | |
US813833A (en) | Means for regulating the tension upon warp-threads of looms. | |
US81453A (en) | Improvement in let-off mechanism foe looms | |
US416025A (en) | wilkinson | |
US138391A (en) | Improvement in let-off mechanisms for looms | |
US769580A (en) | Take-up mechanism for looms. | |
US27136A (en) | Thomas lovelidge | |
US744941A (en) | Let-off mechanism for looms. | |
US75305A (en) | Improvement in looms | |
US743723A (en) | Loom. | |
US22065A (en) | Power-loom | |
US355617A (en) | Let-off mechanism for looms | |
US503462A (en) | Let-off mechanism for looms | |
US468133A (en) | Francis j | |
US741661A (en) | Let-off mechanism for looms. | |
US149448A (en) | Improvement in looms | |
US209300A (en) | Ximprovement | |
US394184A (en) | Let-off motion for looms | |
US332782A (en) | bbooks | |
US484002A (en) | fontaine | |
US153264A (en) | Improvement in let-off mechanisms for looms | |
US107313A (en) | Improvement in mechanism tor operating the pickers of looms | |
US391812A (en) | John nightingale | |
US99044A (en) | Improvement in let-off mechanism for looms |