US469452A - Sewing-machine for forming fringe upon fabrics - Google Patents

Description

No Model.) 3 Sheets-Sheet 1.

G., J. G. s M. o. RBHFUSS. y SEWING MACHINE FOR FORMING PRINGE UPON FABRICS.

No. 469,452. F Patented Peb. 23, 1892.

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(No Model.) 3 Sheets-Sheet 2.

G., J. G. & M. 0. REHPUSS. SEWING MAGHINE PGB. FORMING PRINGE UPON FABRICS.

N0.,469,452. 'Patented Peb. 273, '1892.

(No Model.) u ssnets-snet s.

G., J. G. 8U M. O. REHFU'SS.- SEWING MACHINE FR FRMING FRINGE UPON FABRICS.' b No. 469,452. y Patented Feb. l23, 41892,

FIG; 3.

una, wAsmNuron n c Unrrnn STATES PATENT GEORGE REI-IFUSS; JOHN GEORGE REHFUSS, AND MARTIN O. REI-IFUSS, OF

PHILADELPHIA, PENNSYLVANIA.

SEWING-MACHINE FOR F-ORMING FRINGE UPON FABRICS.

SPECIFICATION forming part of Letters Patent No. 469,452, dated February 23, 1 892.

Application tiled December I, 1890. Serial No. 373 205. (No model.)

To @ZZ wiz/m it may concern: Y. F in the slot f in the arm D2, so as to carry it Be it known that We, GEORGE REHFUSS, nearer to or farther from the rock-shaft D', JOHN GEORGE REHFUSS, and MARTINO. REH- and thus increase or diminish the throw of FUSS, citizens of the United States, andresithe looper-arm. In order that this variation 55 5 dents of Philadelphia, Pennsylvania, have in the throw of the looper-arm may not affect invented certain Improvements in Machines theithrow of the knife H, the knife-slide I-I' for Forming Fringe upon Fabrics, of which has a pin t, which is adapted to a segmental the following is a specification. slot g in an arm I, hung to a short rock-shaft Our invention consists of certain improve- 71Which is free to turn in bearings h on the 6o l0 ments in the fringing-machine forming the under sideof the table, said rock-shaft havin)F subject of our patent, No. 438,427, dated Ocanother arm I, which is connected to a rod I2, lober 14C, 1890, the objects of our present imthe rear end of the latter being forked, as provements being to provide for the formashown by dotted lines in Fig. l, so as to emtion of a double fringe instead of the single brace the shaft G, and said rod having a pin 65 15 fringe produced by said patented machine, e', which is adapted to a cam-slot t" in a disk I3 and to improve certain details of the mechon said shaft G. The slot g in the arm I is anism whereby the cutting of the f ringe-loops concentric with the axis of the rock-shaft D is effected. These objects we attain in the when the knife is in the retracted position. manner hereinafter set forth, reference being Hence the vibratinglnovement of the looper- 7o zo hadtothe accompanyingdrawings,inwhicharm will have no effect whatever upon the Figurel is a transverse section of a friugknife, theinovelnentof thelatterbeing caused ing-machine constructed in accordance with Wholly bythe swingingof t-he arm I under the our present invention. Fig. 2 is a rear view influence of the cam-disk I3 and the connecof the same. Fig. 3 is asectional plan view on tions described. 75 the line I 2, Fig. l. Fig. 4 is a similar view The present machine is also adapted, as beshowing some of the parts in a different posifore stated, for the formation of a double tion, and Fig. 5 is a detached view of part of fringe-that is to say, loops of needle-thread the machine. are drawn above the Work table or bed and A A represent the supporting-frames, B above the fabric in addition to the loops 8c 3e the Work-table or bed of the machine, ct the draws below the same-so that fringingneedle, b the presser-foot, and d. the feedstrands areformed upon each sideof the fabric dog, all of which parts may be substantially instead of upon but one side of the same. The similar to those shown and described in the upper looper-arm J has a head J', which is former machine and operated in the same suspended by a bolt 'm from the projecting 8f 3 5 manner. end of a bracket K, secured to the table B 0f The present machine has, as in the former the machine, and vibrating motion isimparted case, a hooked looping-arm D, which is seto said looper-arm by means of a scroll-cam cured to a rock-shaft D', having an arm D2, .I2 on the shaft G, this cam acting on a lever to a slot j'. in which is adapted the securing- J3, which is hung to a bracket J4, the upper 9o 4o boltf at one end of a rod F, the opposite end of said lever JS being connected to the end of which is connected to the sleeve of an head J of the looper-arm Jby means of arod eccentric F upon the driving-shaft G, s0 that J5. The1ooperarm J has a knife-slide M, the a vibrating motion can be imparted to the rear end of which has a pin n for engagement hooked arm D and the latter thus caused to With the forked end of a lever N, hung to the 95 catch the needle-thread at a point below the under side of the bracket K, the other end of table and draw said thread down into a loop this lever being slotted for the reception of below the fabric, the loop being then severed the upper end of a lever P, Which is hung to by a sliding knife H, so as to form on the one of the side frames of the loom, and has fabric projecting strands. Thelength of loop au anti-friction roller acted upon by a camloo drawn by the looper-arm D may be varied disk P on the shaft G, (see Fig. 5,) a spring by shifting the connecting-bolt f of the rod P2 keeping the roller in contact with the disk,

so that a vibrating motion can be impartedv to said lever P at the proper time, which motion is transmitted through the medium of the lever N to the knife-slide M. When the knife-slide M is retracted, the pin n is directly in line with the axis of the arm J, so that the vibration of said arm has no effect upon the knife-slide. v

In order to retain the outer end of the 11pper fringing-strands in position after the loops have been cut, We employ a retaining-finger S, which is carried by a rock-shaft S', mounted in bearings s on the table B, this rock-shaft having an arm S2, which is connected by a rod T to the upper end of the lever P, so that as the looper-arm J swings toward the left from the needle to draw the loop and the knife M moves forward on the same the finger S will be raised to permit the looper-arm J to draT the loop of thread beneath the same, and after the knife has cut the loop and is retracted the Iinger S will descend, so as to retain the cut strands, the looper-arm moving back over the finger in order to again catch the needlethread to draw a fresh loop.

Having thus described our invention, we claim and desire to secure by Letters Patentl. The combination of the vibrating looperarin and the knife-slide carried thereby with a knife-operating arm having a segmental slot concentric with the axis of vibration of the looper-arm when the knife is retracted and means for vibrating said knife-operating arm, substantially as specified.

2. The combination, in a machine for forming fringe upon fabrics, of the single needle,

the work-table or bed, two hooked loopers,-

one above the bed and the other beneath the bed, and mechanism for vibrating said loopers, so as to cause them to engage with the needle-thread and form projecting unconfined loops of said thread above and below the fabric, substantially as specified.

3. The combination of the work-table or bed, the single needle, a looper-arm vibrating with the single needle-thread and to form pro- 5o jecting uncon fined loops of the same, substantially as specified.

4:. The combination, in a machine for forming fringe upon fabrics, of the needle, the

work-table or bed, and two vibrating loopers, b

one above the bed for engaging with the needle-thread on one side of the fabric and forming a projecting loop of said thread and the other beneath the bed for engaging with and forming a projecting loop of the needle-thread 6o on the other side of the fabric, both of said loopers being combined with knives for cutting the loops formed thereby, substantially as specified.

5. The combination of the Work-table or bed, the needle, a looper-arm vibrating in a substantially-vertical plane beneath the bed,

and a looper-arm vibrating in a substantiallyhorizontal plane above the bed, both of said looper-arms being adapted to engage with the 7o needle-thread and form projecting loops of the same and each arm being combined with a knife for cutting the loop formed thereby, substantially as specified.

6. The combination of the upper looper and 'means for vibrating the same, a knifeslide carried by said upper looper, a lever engaging with said knife-slide at a point coincident with the axis of'V rotation of the looper,

and means for vibratin g said knife-lever, sub- 8o stantially as specified.

In testimony whereof We have signed our names to this specification in the presence of two subscribing witnesses.

' GEORGE REHFUSS.

JOHN GEORGE REI-IFUSS. MARTIN O. REHFUSS. Witnesses:

WM. D. CoNNER, HARRY SMITH.

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