US3186443A

US3186443A - Take-up mechanism

Info

Publication number: US3186443A
Application number: US281151A
Authority: US
Inventors: Joseph M Budzyna
Original assignee: Draper Corp
Current assignee: Draper Corp
Priority date: 1963-05-17
Filing date: 1963-05-17
Publication date: 1965-06-01
Anticipated expiration: 1982-06-01

Description

June l, 1965 J. M. BUDzYNA 3,186,443 V TAKE-UP MECHANISM Filed may 1v, 196s @iol T I -E ATTORNEY United States Patent O 3,186,443 TAKE UP MECHANISM Joseph M. Budzyna, East Douglas, Mass., assignor to Draper Corporation, Hopedale, Mass., a corporation of Maine Filed May 17, 1963, Ser. No. 281,151 2 Claims. (Cl. 139-291) This invention relates to looms for weaving and, more particularly, to a means of controlling fabric as it is wound on the take-up cloth roll.

It is a general object of the invention to provide a means whereby fabric as woven will be taken up by the cloth roll free of creases and wrapped more tightly thereon than has been heretofore possible.

It is a further and more specific object of the inven tion to provide a means adapted to cooperate with the fabric which in addition to the first-mentioned object will maintain the increasing roll of fabric at a uniform diameter for its entire width on the cloth roll.

Further objects and advantages of the invention will become apparent from the following more detailed description.

The taking up of fabric on a loom cloth roll has in the past been the object of many complaints from the manufacturers of fabric. It has often been difficult to take up and to wind fabric on a loom cloth roll without its becoming wrinkled or creased, that being something which detracts from the appearance and general desirability of the fabric as it comes from the loom. Fabric of this nature often becomes a fabric of inferior quality, for if it is dyed during the iinishing thereof, discolored streaks will appear as a result of the creases which were formed while being taken up by the cloth roll.

The cause of this undesirable condition can be attributed to the winding up of an uneven roll of fabric, that is, the ends or selvage portions of the fabric have a tendency to increase more rapidly in diameter than the fabric therebetween as said fabric is taken up by the cloth roll. This roll of fabric not being of a uniform diameter as it is taken up introduces wrinkles and as the winding continues, these wrinkles are wrapped into the roll of fabric and show up as creases when said fabric is removed from the loom.

According to the instant invention it is now possible to eliminate these undesirable wrinkles and creases in fabric by maintaining the diameter of the roll of fabric uniform for its entire width. To accomplish this applicant utilizes a spring biased presser roll which is adapted to cooperate with the fabric as it is received by the cloth roll. The tension under which the presser roll is caused to function may be increased or decreased to meet the specific requirements of a particular fabric. This presser roll bearing against the fabric as it is being wound onto the cloth roll maintains the increasing roll of fabric at a uniform diameter for its entire width during the complete wind-up process, thereby eliminating wrinkles and the formation of creases in said fabric.

The invention may be more completely understood by reference to the accompanying description and gures of drawing, wherein:

FIG. 1 is a view of part of the front of a loom as seen looking from the rear thereof showing the mechanism according to the invention applied thereto;

FIG. 2 is a view as seen looking from the front of a loom showing part of the lower portion thereof and the means for varying the tension under which the presser roll is caused to function;

FIG. 3 is a detailed view in front elevation of a modified form of presser roll which may be utilized; and

FIG. 4 is a view in side elevation of the mechanism according to the invention shown in FIG. 1.

CIK

ice

Now referring to the figures of drawing, enough of a loom is shown in FIG. 1 to serve as a basis for a detailed description of the invention.

A loom of more or less conventional design includes loomsides 1i) and 11, a breast beam 12, bottom or front girt 13, a guide roll 13', a take-up roll 14, and wind-up or cloth roll 15.

The ends of the cloth roll 15 are journaled in bearing

members

16 and 17 which are supported by cloth roll stands 18 and 19, respectively.

The base portion of these cloth roll stands are attached to the upper surface of the front girt 13 adjacent the

loomsides

10 and 11. The stands extend in a generally upward direction and position the cloth roll approximately midway between the breast beam 12 and the front girt 13.

The fabric 2l) is guided as shown in FIG. 1 over the take-up roll 14 and thence downwardly to the cloth roll 15 on which it is wound in a manner well known to those familiar with the art.

The mechanism according to the invention includes a presser roll 21 disposed rearwardly of and in general alignment with the cloth roll 15.

A horizontally disposed shaft 22 positioned in close proximity with the front girt 13 and extending parallel therewith is supported by rearwardly extending bearing

members

23 and 24 which are attached to the upper surface of said girt by means of

bolts

25 and 26, respectively.

Outwardly from bearing

members

25 and 26 and adjacent the ends of shaft 22 there are provided ixedly positioned

arms

27 and 28. These arms extend in a generally upward direction and are adapted to support at their upper extremities the ends of the presser roll 21 which extends therebetween.

A supporting bracket generally indicated by numeral 29 which is shaped in the form of an inverted U (FIGS. 1 and 2) is attached to the central portion of the front girt 13 and is directed rearwardly therefrom.

The

leg portions

30 and 31 of this supporting bracket 29 are provided with aligned apertures in which the extended

hubs

32 and 33 of a Worm wheel 34 are journaled.

The worm Wheel and its extended hub portions are axially bored for the reception of shaft 22 which extends outwardly from either side thereof and is freely turnable therein.

The extended

hubs

32 and 33 protrude outwardly beyond the

legs

30 and 31 of the supporting bracket 29 and are provided at each end with integrally formed

lugs

35 and 36.

A wind-up or torsion type spring 37 is assembled on shaft 22 immediately adjacent to hub extension 32. The ends -of the spring 37 are reversely bent forming hooks 38 and 39 (FIGS. 1 and 2) which are adapted to retain said spring under the desired amount of tension during loom operation. Hook 39 is adapted partially to encircle the lug 35 situated on the outer end of the extended hub 32. Hook 33 partially encircles a similar lug 40 which is integrally formed on the outer periphery of a collar member 41. This collar member 41 is iixedly positioned on shaft 22 and is spaced from the extended hub 32 a distance sufficient to permit the spring 37 to be positioned therebetween.

Although only one spring 37 is shown in FIG. l, it is to be understood that a second such spring may be utilized on the opposite side of the supporting bracket 29 and would simply require a second collar 41 in addition to a second spring.

The upper surface of the supporting bracket 29 is provided with a cenrtally disposed rectangular opening 42 (FIG. 2) which is adapted to receive therein a worm gear 43. The front and rear portions of bracket 29 which ce es form the ends of opening 42 are slightly enlarged as shown in FIGS. 1 and 2 and are provided with aligned apertures through which' a-worm shaft 44 is caused to pass. This worm shaft 44 supports the worm gear 43 in the opening 42 and in meshing relationship with the worm wheel 34. The forward end of shaft 44 extends toward the front of the loom and slightly beyond the front girt 13 and is supported adjacent the forward end thereof by means of a pillow block type of bearing 45 which is attached to -said front girt by means of

bolts

46 and 47. Approximately midway between the free forward end of shaft 44 and the bearing 45, said shaft is provided with a pin 48 which assembles thereto at a right angle to the axis of said shaft. This pin 48 provides a means whereby shaft 44 may be turned in one direction or the other by simply slipping a slotted type crank handle (not shown) over the forward end of said shaft.

FIG. 3 shows a modified form of presser roll indicated generally `by numeral 49 which may be utilized. This type of roll is threaded from points adjacent the center thereof outwardly to its ends. These threaded portions being in pressing contact with the fabric are effective to urge and smooth the fabric outwardly from its center portion as it is taken up by the cloth roll.

In operation, the movement of turning shaft 44 is transmitted to worm wheel 34 and its extended

hubs

32 and 33 via the worm gear 43 which is iixedly assembled on said shaft 44.

The rotary movement of the extended hub 32 causes the spring 3'7 attached thereto to rbe wound up or unwound as desired. The opposite end of this spring being attached to collar 41 which is fixedly positioned on shaft l22 causes the torsional tension under which the spring is held to be transmitted to said shaft. The tendency of -shaft 22 to unwind

urges arms

27 and 28, which extend in a generally upright direction, to swing toward the front of the loom and the presser roll 21 being supported between and on the upper ends of said arms is pressed into contact with the fabric as said fabric is received -onto the cloth roll.

This pressure applied to the fabric for its entire width as it is received by the cloth roll maintains the diameter of the roll of fabric uniform and does not permit the selvage portions thereof to build up and telescope inwardly to form wrinkles which would be subsequently ironed in as creases as the roll of fabric increased in size.

By keeping the roll of fabric uniform in diameter, the pressure applied thereto by the presser roll iniinences the fabric in such a manner that it is wound more tightly on the cloth roll. A more tightly wound roll of fabric is favored by Weavers for a substantial amount of additional fabric can be wound on a cloth roll before it is doffed.

While one embodiment and a modification of the invention have been disclosed, it is to be understood that the inventive concept may be carried out in a number of Ways. This invention is, therefore, not to be limited to the precise details described, but is intended to embrace all variations and modifications thereof falling within the spirit of the invention and thescope of the claims.

I claim:

1. In a loom the combination of a fabric take-up roll and a cloth roll on which fabric is adapted to be wound, a presser roll adapted to cooperate with said cloth roll as the fabric is received thereon comprising supporting arms and a horizontally disposed shaft member to which said supporting arms are fiXedly attached, adjustable spring means for subjecting said shaft to torsional tension whereby `said presser roll is continually urged into pressing contact With the fabric as it is received by said cloth roll.

2. in a loom the combination of a fabric take-up roll and a cloth roll on which fabric is adapted to be wound, a presser roll adapted to cooperate with said cloth roll as the fabric is received thereon comprising supporting varms and a horizontally disposed shaft member to which said supporting arms are fixedly attached, adjustable spring means for subjecting said shaft to torsional tension whereby .said presser roll is continually urged into pressing contact with the fabric as it is received by said cloth roll,

said adjustable spring means including a selectively rotatable worm gear in meshing relationship with a centrally disposed worm wheel on said shaft, a vtorsion spring encircling said shaft having one end fixed thereto and its opposite end fixed to said worm wheel.

References Cited by the Examiner UNITED STATES PATENTS 236,068 12/ 80 Newcomb 26-63 650,717 5/00 Goodline 139-291 691,088 l/02 Wackerhagan 139-291 751,192 2/04 Meding 139-291 1,649,612 11/27 Moore et a1. 139-291 2,519,424 8/50 Bahan 139-308 2,638,939 5/53 Picanol 139-308 FOREIGN PATENTS 1,098,457 1/ 61 Germany.

DONALD W. PARKER, Primary Examiner.`

Claims

1. IN A LOOM THE COMBINATION OF A FABRIC TAKE-UP ROLL AND A CLOTH ROLL ON WHICH FABRIC IS ADAPTED TO BE WOUND, A PRESSOR ROLL ADAPTED TO COOPERATE WITH SAID COLTH ROLL AS THE FABRIC IS RECEIVED THEREON COMPRISING SUPPORTING ARMS AND A HORIZONTALLY DISPOSED SHAFT MEMBER TO WHICH SAID SUPPORTING ARMS ARE FIXEDLY ATTACHED, ADJUSTABLE SPRING MEANS FOR SUBJECTING SAID SHAFT TO TORSIONAL TENSION WHEREBY SAID PRESSOR ROLL IN CONTINUALLY URGED INTO PRESSING CONTACT WITH THE FABRIC AS IT IS RECEIVED BY SAID CLOTH ROLL.