US2684083A

US2684083A - Weaving loom

Info

Publication number: US2684083A
Application number: US261513A
Authority: US
Inventors: Felton William
Original assignee: Crabtree & Son Ltd D
Current assignee: Crabtree & Son Ltd D; David Crabtree & Son Ltd
Priority date: 1951-12-13
Filing date: 1951-12-13
Publication date: 1954-07-20
Anticipated expiration: 1971-07-20

Description

W. FELTON WEAVING LOOM July 20, 1954 2 Sheets-Sheet 1 Filed Dec. 13, 1951 I Inventor William Fell'on Attorney W. FELTON WEAVING LOOM July 20, 1954 2 Sheets-Sheet 2 Filed Dec. 13, 1951 lnuemfor William Falfon B7 \TMMM saw aamuwwg A Home y Patented July 20, 1954 UNITED STATES WEAVING LOOM William Felton, Bradford, England, assignor to David Crabtree & Son Limited, Laisterdyke, Bradford, England, a British company Application December 13, 1951, Serial No. 261,513

8 Claims.

This invention relates to that kind of weaving loom which uses three or more warp beams, for example a gripper or spool gripper carpet loom having three warp beams.

An object of this invention is to enable removal and replacement of any of the three or more warp beams to be effected without removing any of the other warp beams and without lifting any warp ends.

A loom of the hereinbefore specified kind in accordance with this invention has a rotatable carrier adapted to removably hold three or more warp beamssimultaneously and enable two or more of them to be moved out of the way of access from the back of the loom to the remaining beam whilst their ends remain unlifted.

The said rotatable carrier may have warp beam mountings arranged circularly about its axis of rotation, and a device may be provided for releasably securing the carrier in different angular positions corresponding to the number of warp beam mountings, whereby the warp beams mounted on the carrier can be rotated into and secured in positions where they allow access to any one of them from the back of the loom.

The warp beam mountings may be such as to permit each warp beam to be disconnectably connected, for example, through a clutch or coupling, to a warp let-off motion which may be of known form.

The said securing device may have a spring or weight loaded lever pivoted to a fixed part of the loom and having a catch on one arm and a series of projections mounted on the exterior of the carrier for engagement separately by the said catch to hold the carrier releasably in different angular positions.

Rods -may be formed and arranged to serve as guide rods which operate to guide the ends of one or more of the warps so as to keep them clear of the ends of others of the said warps.

The carrier have a tubular part whereby it is mounted on a stationary support and which serves also as a guide for the ends of one or more of the warps.

The said projections may be extensions of, or additions to, the said rods.

The said rods may alternatively be separatefrom but in pairs with the projections which 00-- operate with the catch.

In the accompanying drawings Figure 1 is a side view in medial section of a warp beam carrier for attachment to a gripper or spool gripper carpet weaving loom operating with three warp beams; and

Figure 2 is an end view thereof.

In Figure l, the back of the 100m is at the left hand side of the figure.

Referring to the drawings, in the construction shown therein, a warp beam carrier I is adapted to carry three

warp beams

2, 3 and 4% respectively and has two

end plates

5, 5 respectively and three equi-angularly spaced rods 6 bolted at their ends to the

end plates

5, 5. The

end plates

5, 5, of the carrier 8 are secured to a tubular part I which is parallel with the rods 6 and extends through the end plates .7, 5. The tubular part 7 is rotatably mounted in stationary support 8 fixed, for example as shown, to the frame 9 of the loom. I

Each warp beam 2, 3 and i has a square-section shaft l6, H and 12 respectively, one end of which is circular in cross-section and is carried in an axially removable bush l3, it and 35 respectively, carried by the end plate 5. The other. end of each shaft IE, it and I2 respectively is also of circular cross-section and is carried in a slotted bearing it, i! and 58 respectively in the end plate 5, a cap l9, 2!] and 2! respectively being provided to close the slot in the respective bearing It, I? and 58. Each bush l3, hiand IE5 respectively, is an endwise sliding fit in a slotted

bearing aperture

22, 23 and 24 respectively, and has a lug whereby it can be disconnectably secured to the plate 5 by a screw I3, It and [5 respectively. Each slotted bearing in each plate alternates with a rod 6 and the bearings are spaced equal distances apart.

A locking lever 25 for the carrier i is pivoted to a stationary part which may be a part of the loom frame 9 and has a notch 26 near one end of its arm 27!. The lever 25 is loaded by a weight 2511 so as to urge the notched arm 21 towards the carrier l. The notch 25 can engage with any one of three projections 6', there being one projection 8 on each of the three rods 6, and the lever 25 therefore is a catch lever which serves to lock the carrier I in any one of threeangular positions.

The loom is provided with a warp let-off motion of known construction for each beam 2, 3 and i respectively, each motion being adapted to control any one of the warp beams 2, 3 or lmounted on the warp beam carrier 5. The conengagement with a square hole 3!, 32, 33 respec tively in a piece 34, 35, 36 respectively which is an extension of, as shown, or is connected to the corresponding shaft it, ll, l2 respectively or one trunnion of each

beam

2, 3, 4 respectively, the

spindle 28, 29, 39 respectively being rotated by the let-01f mechanism. All three clutches or' couplings can be disengaged whilst altering the angular position of the carrier I.

The warps pass from the warp beams 2, 3, s

through the usual jumbo levers 3T, 38 and 39,

respectively and heddles (not shown) of the loom. The warp ends from the two warp beamsnearest to the jumbo levers, that is, warp beams 2 and 3 in the shown angular position of the carrier 5, pass directly thereto, whilst the warp ends from the third warp beam, that is, warp beam 4 in the shown position of the carrier I, first pass under the carrier shaft 1 which acts as a guide for the same, then upwards and over one of the rods 6, which rod also acts as a guide for the same, and then forwardly to the corresponding jumbo lever 39. By this means, tangling of the warp ends is made diiiicult, the ends from one warp beam being kept spaced from ends from the other two Warp beams.

To replace a warp beam which is not already in a convenient position for replacement without lifting warp ends, the warp let-oil motion clutches or couplings are disengaged from the warpbeams, the carrier locking lever 25 is disengaged from the carrier I, and the carrier I is rotated by hand or, as shown, by a suitably geared'hand operated drive 40 or other drive into that position of the three positions, in which it is easy to replace the warp-beam from the back of the loom, and is locked in that position by means of the locking lever 25. The warp beam to be replaced can then be released by removing the corresponding bush and cap and removing from the carrier l conveniently and replaced by a fresh beam. There is no need to lift warp ends, nor is there any need to remove either or both of the other warp beams. The carrier I is then released from the locking lever 25 and restored to its initial angular position. The warp let-off motion clutches or couplings can then be reengaged.

It will be readily appreciated that the hereinbefore described warp beam carrier results in a substantial saving of time and labour and an avoidance of diiliculty in replacement without interfering in any way with the quality of the product of the loom on which the warp beam carrier is used.

I claim:

1. In aweaving loom using at least three warp beams, a rotatable carrier mounted on said loom, holding means on said carrier for removably holding at least three warp beams simultaneously, and means on the carrier for guiding the warp ends of warp beams held by the said carrier.

2. In a weaving loom using at least three warp beams, a rotatable carrier mounted on said loom, at least three warp beam mountings provided on said carrier and arranged circularly about its axis of rotation, a device for releasably securing said carrier in diiierent angular positions corresponding in number to said warp beam mountings, and warp end guides on the said carrier for simultaneously guiding the warp ends of one warp beam in paths clear of the paths of warp ends of another warp beam carried by the said carrier.

3. In a weaving loom using at least three Warp beams, a rotatable carrier mounted on said loom, mountings for at least three warp beams provided on said carrier, a device for releasably securing said carrier in different angular positions corresponding in number to said warp beams, guides on the carrier for guiding warp ends, and a disconnectable coupling on the loom for controlling rotation of each warp beam simultaneously whilst the carrier is in any of said angular positions.

4. In a weaving loom using at least three warp beams, a rotatable carrier mounted on said loom,

mountings for at least three warp beams on said carrier, a stationary part of the loom, a catch lever pivotally mounted on the said stationary part, at least three projections mounted on the said carrier for engagement separately by said catch lever, and disconnectable couplings on the loom for disconnectable connection to the warp beams.

5. In a weaving loom using at least three warp beams, a rotatable warp beam carrier, a stationary support mounted on said loom, a tubular part of said carrier for rotation on said support, mountings for at least three warp beams on said carrier, a stationary part of the loom, a catch lever pivotally mounted on said stationary part, at least three projections mounted on the said carrier for engagement separately by said catch lever, coupling devices on the loom for engagement with the warp beams, and guide rods for guiding the warp ends of one warp beam clear of the warp ends of another warp beam, said tubular part serving as a guide.

6. In a weaving loom using at least three warp beams, a stationary frame, a stationary suppci on the said frame, a tubular member rotatably mounted on the support, a warp beam carrier of which the tubular member forms a part and which is therefore rotatable, mountings on said carrier for mounting at least three warp beams separately on the carrier, a catch lever p-ivotally mounted on the said frame, at least three projections on the carrier for disengageable engagement separately by said catch lever, and guide rods mounted on the said carrier in pairs with said projections for guiding the warp ends of a warp beam clear of the warp ends of other warp beams on the carrier, said tubular member serving for guiding warp ends.

7. In a weaving loom using at least three warp beams, a rotatable carrier mounted on said loom, mountings for at least three warp beams provided on said carrier, a stationary part of the loom, a gravity operated catch lever pivotally mounted on said stationary part, at least three projections mounted on the said carrier for dis engageable engagement separately by said catch lever, a disconnectable coupling on the loom for disconnectable connection to each warp beam, and guide rods on the carrier for guiding the warp ends drawn from a warp beam on the carrier clear of the warp ends carried by another Warp beam on the carrier.

8. In a weaving loom using at least three warp beams, a warp beam carrier rotatably mounted References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 383,825 Pearson May 29, 1888 1,949,579 Parker Mar. 6, 1934 1,957,121 Wood May 1, 1934 2,285,488 Bernard June 9, 1942 2,346,903 Cafirey Apr. 18, 1944 2,363,112 Bennett Nov. 21,1944-