US1069082A - Warp-end-supporting means. - Google Patents

Description

I H. D. COLMAN.

WARP END SUPPORTING MEANS. APPLICATION FILED SEPT, 2, 1911.

Patented July 29, 1913.

3 SHEETS-SHEET 1 I gull c 7 r g 42* H. D. GOLMAN.

WARP END SUPPORTING MEANS.

APPLICATION FILED SEPT. 2, 1911.,

1,069,082. Patehted July 29, 1913.

3 SHEETSSH EET 2v Wfikessas; M M DQZmcm H. D. UOLMAN.

WARP END SUPPORTING MEANS.

APPLICATION FILED SEPT.2, 1911.

1,069,082, 7 Patented July 29, 1913.

3 SHEETS-SHEET UNITED STATES PATENT OFFICE.

'HOWARD D. COLMAN, OF ROCKFORD, ILLINOIS, ASSIGNOR TO HOWARD D. COLMAN, LUTHER I1. MILLER, AND HARRY A. SEVERSON, COPARTNERS DOING BUSINESS AT ROCKFORD, ILLINOIS, AS BARBER-COLMAN COMPANY.

WARP-END-SUIPORTING MEANS.

Specification of Letters Patent.

Patented July 29, 1913.

Application filed September 2, 1911. Serial No. 647,359.

Supporting Means, of which the following is a specification.

In application Serial No. 507,233, filed July 12, 1909, there is shown. a warp-tying apparatus comprising means for supporting one end of the new warp and an end of the old warp while said Warpsare being secured in the clamps of the warp-uniting machine. Said warp-end supporting means comprises two pivoted arms arranged to support a thread-holder consisting of a bar covered with card cloth or similar material. bar is arranged to be removably placed upon said arms at two different heights to correspond with the different horizontal planes of the warps. After the new warp has been secured in placethe' operator places said bar in its upper position for use in securing the old warp in place in the machine. The object of this invention is to improve said warp-end supporting means by obviating the necessity of transferring the threadengaging bar from one place to another upon'the arms; to provide means, whereby, when the arms are swung downward, their pivotalsupport will also move downward automatically so as to be in position for use with the next warp or -warp=section; to facilitate the removal of the threads from the thread-engaging bar; and in other ways to lessen the amount of attention and effort required of the operator in the use of said warp-end supporting means.

' In the accompanying drawings, Figure 1 is a fragmental vertical transverse section through a warp-tying machine embodying the features of my invention, the warp-end supporting means being shown as supporting one end of the'upper warp. Fig. 2 is a similar view showing 1 the Warp-end supporting means-as supporting one end of the lower warp. Fig. 3 showsthe supporting means in its withdrawn or inoperative po-- sition. Fig. 4 is a view upon a larger scale showing the means, for locking the support in its upper position, the means for locking the arms in their upper position, the means for releasing the first mentioned lock, and

The

the means for cushioning downward movement of the support. Fig. 5 IS a section on line 5 of Fig. 3. Fig. 6is a fragmental side elevation showing the parts in the position indicated in Fig. 3. Fig. 7 is an end view of the bar that supports the card cloth.

1 indicates the bed of the warp-tying machine. A clamp 2 is supported above said bed at one side thereof by means of a suitable number of posts 3. At the otherside of said bed is a clamp 4 pivotally supported by means of a rock shaft 5 carried by posts 3 so that tension maybe placed upon a warp held in the clamps 2 and 4.

6 refers to the framein which the old warp'is supported, said frame being provided with a fixed clamp 7 and a pivoted clamp 8. The threads are inserted into the clamps 2, 4, 7 and 8 by means of insertion bars 9.

The new warp a is woundupon a loom beam which may be located in the loom or in a supporting framework of any suitable character. The old warp b likewise may extend from the 100111 or be supported at one end in any suitable manner. The opposite end of the old warp and the corresponding end of the new. warp are supported prior to and while the warps are being secured in the clamps 4 and8 by the means to be now. described.

To the bed of the machine at the side on which the clamps 4 and 8 are located I attach two brackets 10 each provided with perforated ears 11 and 12 providing bearings for a vertically slidable rod 13. Said rods are rigidly secured together by means of collars 14 and a cross-bar or tie-rod 15, the vertical rods 13, collars 14 and horizontal rod '15 thus constituting a rigid vertically slidable structure hereinafter termed the arm supporting structure. Said structure is arranged to be locked in its upper position by means of two dogs 16 fixed upon a rock shaft 17 journaled in hearings on the collars 14 said dogs being arranged to enter recesses 18" in the brackets 10. A torsion spring 19 tends to rock the shaft 17 in the suitable way as by means of coiled springs 20.

Two arms 21 rigidly secured together by means of a transverse rod 22 are pivoted otherwise suitably secured to each collar 14.

A torsion spring 28 tends to rock the shaft 25 in the direction to place the dogs 24 in operative position.

29 is a hand lever for rocking the shaft 25 to throw out the dogs 24.

An arcuate projection 30 is formed uponeach arm 21 in position to engage an arm 31 rigid with the adjacent dog 16, for automatically moving said dog out of the recess 18 whenthe arm 21 swings downward.

To the free end of each arm 21 is pivoted a bracket 32, and to these brackets is secured a bar 33 upon which is mounted card cloth or any other suitable material or devices for holding warp threads. As will be seen from the drawings, the pivots 34 of the brackets 32 are located so that when the arms are in their operative position the bar 33 may be swung up and toward the warp-tying machine by the operator. The card cloth 35 may be secured to the bar 33 in any suitable manner. Herein I have shown clips 36 in channel form which clamp the edges of the cloth to the bar 33, the latter being attaclied to the brackets 32 by screws 37: The

ends of the strip of card cloth are held to the bar 33 by clips 38.

The warp-tying machine may be made of sufiicient capacity to operate upon the entire width of the warps at one time, or it may be designed to operate upon a section only of the warps at a time.

Assuming the parts of the apparatus to be in the position shown in Fig. 2 the operation is as follows: The new warp or a section thereof is laid across the clamps 2 and 4, and if the end of the warp has been tied into a loose knot, the operator unties said knot, and, taking a number of threads in one hand, he brushes them into substantial parallelism by means of abrush, and secures the brushed-out ends by pressing them down upon the card cloth 34. This operation he repeats until there has been formed a sheet of substantially parallel threads extending over the clamps 2 and 4 to the bar 33. The sheet of threads is next secured in the clamps 2 and 4 by pressing insertion upwardly and rearwardly on the pivots 34 and pulls the card cloth from the threads by pulling forwardly on the bar 33. The operator then liftsthe arm-supporting structure into the position shown Fig. 1 and secures the old warp in the warp-tying machine in substantially the same manner as in the case of the new warp. The dotted line 25 represents the position of the old warp after being brushed out and before the warp frame 6 is placed thereon, the bar 33 moving'from its dotted-line to its fullline position when the frame 6. is placed on the warp and the insertion bar 9 pushed into the clamp 8. After stripping the ends of the old warp-threads from the card cloth, the operator operates the lever 29 to throw out the dogs 24, whereupon gravity and spring 23 cause the arms 21 to swing forwardly and downwardly. During such swinging movement of the arms 21 the projections 30 engage the arms 31 of the dogs 16 and move said dogs out of the recesses 18, whereupon the arm-supporting structure drops onto the cushioning springs 20. Said structure is then at the horizontal level requisite for the next operation,- and the arms 21 are out of the way of the operating crank of the warp-tying machine.

While I have described the present embodiment and its uses with considerable particularity, I desire it understood that the invention is not limited to the details and uses herein set forth.

I claim as my invention:

l. The combination of two warp clamps,

lower clamp, an auxiliary thread-holder, a

vertically movable support upon which the thread-holder is 'pivotally supported, and means for locking the thread-holder against pivotal movement in one direction.

5. The combination with two clamps into which sheets of threads are to be inserted, of an auxiliary thread-holder yieldable toward the clamps to furnish. the necessary slack in the threads, and a support for said thread-holder movable to place the threadholder in operative relation to either of said clamps.

6. The combination of an upper and a lower warp clamp, a vertically movable structure, thread-holding means pivoted on said structure, means forlocking said structure in operative relation to the upper clamp, and means for releasing said look upon pivotal movement of the thread-holding means in one direction.

7. The combination of an upper and a thread-holding means carried by said arm,

and means for locking said arm against downward pivotal movement.

8. The combination of an upper and a lower warp clamp, a vertically movable structure, an arm pivoted-upon said structure, thread-holding means carried by said arm, a locking portion on said structure, a dog carried by said arm and adapted to engage said portion to limit pivotal move ment away from the clamps, and means tending to move said arm away from the warp clamps. K

9'. The combination of a warp-tying machine provided with an upper and a lower clamp; brackets fixed to said warp-tying machine below said clamps, a structure slidably supported by said brackets for vertical movement, two arms pivotally connected at one end to said structure and rigidly'contending to swing said arms away from the clamps, a dog on one of said arms and co- 1 operating means on saidstructure for limiting such movement of the arms, a spring tending to hold said dog in operative position, means for releasing said dog, a dog on.

said structure and cooperating means on one of said brackets for supporting said structurein its upper position, and a projection on one of said arms arranged to operate the last mentioned dog to withdraw it from operative position when said arms swing downwardly away from the warp clamps.

' 10. The I combination of a warp clamp, means tending to move away from said warp clamp, and a thread-holderpivoted to said means.

11. The-combination of a warp clamp, a

pivotally supported arm tending to move awayfrom said clamp, and a thread-holder pivoted to said arm to swing upwardly toward the warp clamp.

In testimony whereof I hereby aflix my signature in the presence of two witnesses.

HOWARD D. COLMAN. Witnesses:

L. A. CULVER, J. F. ELWOOD.

Images