US978116A - Cutting pile-wire. - Google Patents

Description

G. CROSSLAND.

CUTTING PILE WIRE. APPLICATION FILED JUNE 23, 1809.

Patented D6c.6,1910.

WITNESSES 3 3 /wavro Georje Grassland BY J4 w ATTORNEY State? f UNITED STATES PATENT OFFICE.

GEORGE GBOSSLAND, OF WATEBTOWN, MASSACHUSETTS,

. BRIGGS, 0F AMESBURY, MASSACHUSETTS.

Assronoa T0 enonen H.

ourrrne rrnnwnm.

Patented Dec. 6, 1910.

Applicatibn filed June 26, 1909. Serial No. 504,445.

Toallwlwmt't'malyconm:

Be itknown that I, Gnonen CRossnANu, a citizen of the United States, residing at WateIZtOWn in the county of Middlesex and Massachusetts, have invented certain new and useful Improvements in OuttingPile-Wires, of which the following is a s ecification, reference being had therein to t e accompanying drawing. a

This invention re tes to the construction of stationary pile wires having pile thread cutters mounted thereon, thesarne being used on looms employing longitudinal pile wires for weaving pile fabric, and the object of the invention is to provide a pile 'wire having a reduced portion for the purpose of relieving the friction in drawingmtiie oops along said wires after having 11 I f rmed thereover.

A further object of the invention. is' to provide a reciprocating cutter mounted upon said wire for severing the pile loops of the fabric.

A feature of my invention is that thecutter blade is arranged to reciprocate, there.

by giving it many a vantages overthe ordinary stationary'blade, first, that the moving blade cuts much easier than a fixed blade; second, that owing to detail view of the pile wire showing the cut-' ered exactly in the center this ease in cutting, the pile loops are sevthirt', my construction gives to, the blade a greatly in- .creasedlength and more effective cutting edge; fourth, bymy improved construction 35 the cutter is very easily removed to be inspected, sharpened or replaced.

With these and other"objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings: Figure 1- is a side elevation of the device illustrating the cutter in position and showinga connect-ion through which the same may receive a reciprocating motion. Fig. 2 is a plan view ofthe apparatus. Fig. 3- is a ter operatively mounted thereon. Fig. 4:- is an enlarged detailed view of the cutter. Referring to the drawings, 1. designates the pi'lefwires, one end of each of which is provided with a shoe- 2 or enlarged portion on its forward end. This enlarged end may be formed integral with the wire or attached among others being,

to the same b rivets, solder or other suitable means'. This end of this shoe is provided withan upward extension 3 to facilitate its being clamped or retained in posi tion. This end is also provided with a forked rearward extension 4 for the reception of the cutter blade 5 which is mounted to oscillate'ftherein on the pivot pin 6. The lower portion'or cutting edge of this blade works in a slot 7 in the upper edge of the pile wire the upper end 8 of the blade be- .ing rounded off on a radius struck from the pivot center, so that the cap or driving bar 9, which rides thereon, will move back and forth in a straight line while reciprocating. Another feature in the construction of this blade is that the same is provided with an open-ended slot 10 extending forward and downwardly from the pivot bearing, the walls of which slot form a hook which is adapted to fit over the pivot'pin 6 when osltioning the cutter thereon. This slot is or the purpose of allowing this cutter blade to be readlly removed from the pivot pin when desired without the necessity of removing said pin.

Pile wires provided with cutter blades are usually formed of a uniform-size from the point 11, where the 100) is first formed thereover, forward to the ec ge of the knife, where the loops are cut, thus requiring a large amount of power to overcome the friction of sliding the multiplicity of loops along the wires. In order to remove this unnecessary. friction and reduce the power required for this purpose Iv form the'pile wire of the usual size at the point'll and maintain this size a short distance or until sufiicient ground-work has been woven into the fabric to firmly. bind and ret in, the pile threads, after which the size of t e wire 15 reduced as'at 12 for a] shortdistance sufficiently to allow the loops to pass freely and withoutfriction over this portion .of the wire.. Just before the' loops reach the as at-'13,'substantially to its normal size, to tighten or stretch the lo ops' so they may be readily severed when presented to the knife. The rear end of these He wires may be free and unsupported,'if esired,and arranged to extend back through the reed. In order to firmly su port these wires from their front ends I iiave "provided a frame 14 having a cross bar 15 which extends across the edge of the knife the wire is again enlarged the shoes or forward ends 2 of the pile Wire are arranged to rest, the lower edge 16' front of the machine, against which bar of the shoe resting on the ledge or outwardly extending lip 17 of this bar, while a the clamping plate 18"is bolted across the front engaging'the up-turned end 3 0t each wire, firmly binding and holding the whole firmly in position. v

The cap or driving bar 9 is arranged to rest upon the upper rounded ends of the cutter blades and is allowed to reciprocate,

but is prevented from rising by the arms 19 which are bolt'ed'at 20 to the bar 15, the required reciprocating motion bein imparted from a cam or crank on the com, (not shown,) through the connecting rod 21- knee lever 22, rack 23, pinion 2' lever 29 and connecting rod 26. This cap bar 9 may bemade to engage all of the cutters or it may be in sections to engage any number of the cutters desired, the means for impart ing the reciprocatingmotion being connected to each end of veach section. When it is desired to remove a cutter it is only necessary to loosen the boltsQO, swing away the fingers 19, raise the bar 9 and withdraw any ily replaced therein.

It is found in practice that a reciprocating or all of the cutters, the same being as read cutter is extremely effective in its operation as it is well knownthat a moving or shear ing blade will cut much more effectively than a fixed blade, also thatthe cutter will hold its edge much longer owing to the fact that a much greater length of efl ective cutting edge is being presented. Then again, the moving cutter will cut the loops exactly in the eenter, while with a fixed blade they are apt to run from side to side over this edge, cutting one thread longer than the other. Another essential feature is the ease I claim as new and desire to with which the cutters may be removed for the purpose of inspecting, sharpening or replacing the same.

Having thus described my invention, what secure by Let.- ters Patent, isz- In a loom the combination ofia continuous pile wire provided with a slot near one end thereof and provided with an up- 4 ward extension adjacent said slot, a-reciprocatory cutter .blade pivotally supported by said extension and having its cutting edge located in said slot, and means for reciprocating said blade to sever the pile loops as' drawn along said wire. f

2. In a loom the combination of a con tinuous pile wire provided with a slot near one end thereof and provided with a shoe or enlarged portion having a rearward extension overhanging said slot, a reciprocatory cutter blade pivotally supported by said extension and having its cutting edge io'ratedin said slot, and means for reciproeating said blade to severthe pile loops as drawn along said vqire.

3. In a loom the combination with a pile wire, of a. pivot rod, a pile cutting knife directly mounted on said pivot rod and re- -movably engaging the latter, and. means.

for opcratingsaid knife.

4. In a device of the character described,-

the combination of a pile wire, a reciprocat'able cutter blade pivotally hung, said blade-being provided with a slot whereby it may be-readily removed'from its pivot, and means for reciprocating said blade .to sever the pile loops. as drawn along said W1I8.. I

5. In a device of the character described, the combination of a pile wire, a rec1pro-.

catable cutter blade pivotally hung, said blade being provided with an open-en ed from its-pivoting point to its edge whereby it may be readily removed from its pivot,

and means for reciprocating said blade to sever 'the pile loops as drawn along said wire.

6. In a device of the character described, the. combination of .a. pile Wire with an enlarged portion at one ,en 5 a pivot pin in said portion, a cutter blade mounted on said pin, said blade being provided with an open-ended slot from its pivoting point to its edge whereby it may be readily removed from said pivot pin, and means for reciprocating said blade to sever the pile loops as drawnalong said wire! y 7. In a 100m, the combination with a plurality of pile wires, of a pivot rod, a series of pile cutting blades directly mounted on said pivot rod, and remo'vably engaging the rovided latter, a member for retaining said blades in position, and means forvreciprocating said gmember tooperate sald blades.

.8. In a loom, the combination with a pluralityof pile wires, of a pivot rod, a series reduced portion being for'the purpos'e'of relieving the friction ofdrawing the formed loops along thepile wire, and also for retaining and guiding the same by the cutter,

said wire being again enlarged nearer its cutting and and a cutter supported by said v wire for severing the pile loops.

. 10. In a loom the combination with a plurality of pile Wires, of a series of independent pivotally mounted cutting members each cap.

- ent pi'votnily mounted cutting members each DIOVldBCi wlth an operating head, a cap provided with an operating head, a cap I members, means for reciprocating said cap, 10 fitting over the heads of all of said cutting and guide arms for retaining said cap in members, and means for reeipreeating said pnerative position.

' In testimony whereof I affix my signature 11. In a 100m the cmnhination with a pluin m'esence of two witnesses. raiity of pile wires, of a series of independ- I GEORGE CROSSLAND. x

i Witnesses:

i HARRY SI-IERBURNE,

loosely engaging the heads of said cutting JOHN U. BOS'IWICK.

Images