US1691145A - Cloth-roll support - Google Patents

Description

Nov. '13, 1928. 1,691,145

. C. P. BERGSTROM ET AL CLOTH ROLL SUPPORT Filed Dec. 21, 1927 2 Sheets-Sheet 1 M c TOE A. /%/6 Nov. 13, 1928.

C. P. BERGSTROM ET AL CLOTH ROLL SUPPORT Illlllllllll .r I

2 Sheets-Sheet 2 Filed Dec. 21,. 1927 which it may be Patented Nov. 13, 1928.

UNITE DSTA D vroronA. FOISY, or wonensrnn, massacnosn'rrs, as-

& K'NcwLEs LOOM wonns, or

MASSACHUSETTS.

CLOTH-ROLL surronr.

Application filed necemberlzl, 1927. Serial at. 241,667.

Thisinvention relates to a loom for weaving cloth and pa devices for, supporting a cloth roll therein.

it is desirable to lower the In such looms, cloth roll after restore the ative position. g

It is the general to provide from time roll to its raised and operimproved rticularly to improved to time and to thereobject of our invention devices by which the cloth roll may be lowered manually and by thereafter restored toraised and operative position.

A further object .is to provide means by which the roll may be conveniently raised with a step-bystep Our invention further relates to arrangev movement.

ll'lGIlllS and combinations of. parts which will be hereinafter described and more particularly pointed outin the appended claims.

A preterrediorm of the invention is shown in the drawings in which,

Fig. 1 is a front elevation 0t our improved cloth roll supporting mechanism;

Fig. 2 is a side elevation with certain parts inflsection, taken substantially along the line 22 in Fig Fig. 3 is a view showing the parts in a Fig. A is a detail section. looking in t l in Fig. 2;

Fig. 5 is a along the. line 5-5 Fig. 6 is a detail sectional plan View,

line '66 in Fig. 1. drawings, including a frame 10. a

along the Referring to the parts o'i a loom breast beam 11, a cloth roll 13. The

similar to Fig. 2, but dilterent POSIUOTL;

side elevatloir partly in he direction of the arrow detail sectional elevation taken in Fig. 2; and

taken we have shown take-up roll '12, and a roll 13 is supported in bearings 1e (Fig. 6) which are offset from the upper ends of cloth roll supporting bars 16, slid-able in recesses or guide-ways 17 in the take-up stand 17 The supporting bars their lower ends mounted in' the secured to a rock bearings 21 (Fig.

1). 19 is provided with a lateral projection on studs 18 (Fig. 1) forming a treadle or rest on which the weaver may place his downward pressure roll when desired. 23 (Fig. 2) are co to depress the cloth Heavy coiled springs nnected to hooks 24: on

and holds the cloth rollin,

treadle portion 22,

16. are pivoted at s- -'front ends of. arms 19, shaft rotatable in fixed The left hand arm toot and exert.

on the-take-up stand 17 provides a guiding and supporting surface to resist the rearwardthrust of the rack bar under the operatii'ig conditionsto be described.

A hand lever (Fig. 2) is mounted on a fixed stud 3'1 and hasgan oli'set projection 32 slotted-at 33 to receive a stop pin 34 by which angular DlOVGllTlGIllJ of the lever is limited in both directions... A second stop pin 35, isalso provided in the take-up stand 1T a purpose to be described. .A holdii'ig pawl 40, also pivoted on the stud 31. is normally held against a flat plate 41 on the handle 80 by a coil spring 42.

\Wrerithe handle isswungi orward to the position shown in Fig. 2, the holding pawl engages the teeth of the rackbar 25 lowered position against the tension of the springs 23.,

A release pawl 15 is pivoted on a stud d6 in a, lug L7 projecting laterally from the lower end of the lever 30. .Thepawl L5 has an upwardly extending cam portion 48 which Is held 111 engagement with thestop pin 35 by a co l sprmg a9 on the stud 46.

.. Having described the construction'ot our improved mechanism, the operation thereof is as follows Then it is desiredto' depress the cloth 7 WORCESTER, MASSAGHU- I The rack bar is provided with teeth roll 13, the weaver places his foot upon the and the suporting bars 16 against the tension of the springs 28. The 'lever30 normally occupies the position shown in Fig. 2, so that the holding pawl e0 will engage the teeth 26 and hold the'supporting bars in depressed position. Y

VVhe'n it is desired to restore the cloth roll to raised positioin the lever 30 is rocked back and iorthfon its stud 81 a sufiicient number of times topermit the roll to rise until engaged by the take-up roll 12. Each time the handle .is rocked from the position shown in Fig. 2 to that shown in Fig. 3, the release pawl will engage one of the teeth in the rack bar andwill depress depressing the arms 19 sufiiciently to release the holding pawl 40, which is immediately snapped outward by its spring 42 until it engages the plate 4L1 as shown in Fig. 3. I

As the handle is then rocked forward, the

holding pawl will be .moved rearward and will engage the next lower tooth on the rack bar while the release pawl Wlll be disengaged.

from the rack as its cam projection 48 slides upward past the stopfpin to the-position shown in Fig. 2.

viding a step by The cloth roll is thus permitted to rise by the space of one tooth. The operation may be repeated as manytimes as necessary until otherwise than as set forth in the claims,-

but what we claim is o l. In-a loom, cloth roll supporting mechanism comprising a pair of vertically slidable supporting bars, said bars being simultaneously 'manually depressible, means to hold said bars depressed, and means to accomplish a yielding upward step by step movement of said bars to operative raised position.

2. In a loom, cloth roll supporting mechanism comprising a pair of vertically, slidable supporting bars, said bars being simultaneously manually depressible, means prostep release of said sup? porting bars, said bars upward as released;

3; In a loom. cloth roll su a ortino mecha by a step-by-step motion and motion 1S entlrely under the conthus be quickly and and yielding means to raise.

nism comprising a pairof vertically slidable supporting bars, sald bars being simultaneously manually depressible, means to move said bars yieldingl upward, and a manually operated step by step releasing mechanism for said supporting bars. a 4C. In a loom, cloth roll supporting mechanism comprising a pair or" vertically slidable supporting bars, said bars being simultaneously manually depressible, means to move said bars yieldingly upward, and means to limit such upward movementto astep by step movement which is at all times under direct manual control. I

' 5. In a loom, cloth roll supporting'mechanism comprisinga pair of vertically slidable supporting bars, said bars being simultaneously manually depressible, a holding pawl and a release pawl, each successively engaging teeth on one of said supporting'bars and successively releasing said teeth, and yield ing means to raise said bars step by step when released. '6. In a loom, cloth roll supporting mechanism comprising a pair of vertically slidable supporting bars, said bars being simultaneously manually depressible, a holding pawl and a release pawl for one of said bars, a handle etlective to operate saidrelease pawl and to thereby cause said holding pawl to engage and release successive teeth on said supporting bar, and yieldingmeans to raise said bars when released.

7. In a loom, cloth roll supporting mechanism comprising a pair of vertically slidable supporting bars,

ously manually depressibl'e, a lever mounted on a'fixed stud, a holding pawl mounted on V afixed stud, a release pawl mounted on said lever and having a projection engaging a fixedstop, and yieldlng means, to move said supporting bars upward and to cause the lteeth thereof to successively engage said pawls. v v In testimony whereof we have hereunto ailixed our signatures. 5

CAR-L P. BERGSTROM.

VICTOR A. FOISY.

said bars being simultane

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