US1401655A - Warping and beaming machine - Google Patents

Description

G. SIPP.

WARPING AND BEAIVIING MACHINE.

APPLICATION FILED APR-9,1917.

Patented Dec. 27, 1921.

2 SHEEVTs-SHEET 1.

lI/VENTOR,

. G. SIPP. WARPING AND BEAMING MACHINE. APPLICATION FILED MII. 9. |911.

INI/Huron, T SING,

' Amm/vw WITNESS patear GRANT vSIIII?, OF PATERSON, NEW JERSEY.

WARPING AND BEAMING- MACHINE.

Application filed April 9,

To all whom t may concern:

Be lit known that I, GRANT SIPP, a citizen of the United States, residing at Paterson, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in Warping 'and Beaming Machines, of which `theY following is 'a specification. f

This invention relates to the beaming of warps or the like. The rotation of the reel in beaming machines is usually resisted by a brake strap to preserve a certain needed tension on the warp. Ordinarily the brake strap is held taut by a weight, the inertia of which, if it is heavy enough to maintain the required tension, is frequently responsible for breakage of the threads if the machine is suddenly started. My object is to avoid this,'and I accomplish this object by employing an elastic element to resist the tendency of the brake-strap or equivalent to advance, as an incident of friction, withfthe reel. My invention further contemplates and makes possible more facile operations in obtaining'adjustments of the braking resistance and finer degrees `of, adjustment of such resistance than are incidental to the use of weights. My invention further contemplates providing for an equalized braking resistance being applied to the reel at both sides thereof, so that the wear on the reelbearings will'be equalized and the -recl v therefore kept alwaystrue.

Another object'of-the invention is to construct and arrange the brake strap or band so that, when the machine is adapted also for warping and (as sometimes is the case) no braking resistance is wanted, it may be shifted clear of the reel.

In the accompanying drawings,

Figure l shows a warping and beaming machine provided Ywith the improved braking` means;

' ig. 2 is plan of the'frame of the ma' chine and certain parts of the braking means; n

Fig. 3 is'a front elevation of the anchorage bracket for the fixed end of the brakestrap;

Fig. 4 is a fragmentary front elevation ofthe tension lever; and,

Fig. 5 shows an adjusting means.

a is the frame of a warping and beaming Specification of Letters Patent. i

Patented nec. a7, i921.

1917. Serial No. 160,627.

machine of the so-called Swiss type, and b is the reel journaled in bearings cl therein. The reel, in warping, is driven in the usual manner by the friction wheel d shiftable by operating the treadle e into contact with the friction band f of the reel, said fric tion wheel being driven from thev means g at thebeaming end of the machine by lthe sprocket-and-chain transmission h," in beaming the reel is Vdriven by the pull of the .warp vas it winds on the beam z', which is rotated by the means g. j

The brake strap j'mayrconsist, as is frequently the case, of a metallic strip lined with leather or the like ;..in the present case it is sti'ened at one end by a strip y" for a reason to be explained.

As an anchorage means for one end of this strap I provide the elongated bracket or standard cwhich is pivoted to the frame at Z on an aXis parallel with that of the reel and projects upmore or lless close to the periphery of the band f thereof; the metallic strip of the brake-strap has one end thereof suitably clamped to the bracket lc. The bracket is provided with a lateral projection m whichoverhangs the upperv sur-y face of the frame, being equipped with a set screw n .which may be made to bind down against said surface to hold the bracket in such position that the brakestrapr extends without distortionfrom the bracket to the peripheryofthe band f.. A

' In a bracket' o on the top of the frame is arranged a short shaft p which affords .at

its ends a fulcrum for a' U-shaped lever g having an arm r to which the free end of the brake-strap is clamped by suitable means. In the construction herein actually shown the elements '76,' j, 7c, and g, with their accessories, are duplicated, there being one set at each side of the reel.-see'Fig. 2, showing the parts g and 7c and their accessories duplicated.

Fulcrumed in each bracket 0, preferably on shaft p, isa lever s depending well downwardly and having a threaded stud t projecting therefrom through an extension g of the adjoining leverV g. Y On each side ofsaid extension there is arranged on said stud a nut u; by adjusting these nuts, leaving them clamping the extension of lever g between them, the angular relation of the levers g and s may be altered. The two levers s are connected at their` lower en-ds by a bar y.

1t will be seen that the levers Q and s, with the bar y, constitute a lever structure having levers or lever parts (Q and s) adjustable with reference to each other around their common jlulcrum j) in the brackets o.

The means `ior manually shifting this lever structure consists or' a nut e which is journaled in a stand w and a rod a having a threaded end a" engaged with the threading ot the nut, its other end being secured to the cros`s-bar y, connecting the lower ends of the levers s, at about its mid-point; the

` nut may have a hand-wheel o 'for turning it. A spring e tends normally to move the lever structure in the direction to release the brake-straps.

Y An important element of my invention, as already indicated, isthe employment of elastic means to resist the tendency ot the brakestraps or equivalent to advance, as an incident of their rictional grip on the reel, with the` latter.V ln the present, instance the elasticity is present inthe lever structure, and particularly the long bar y which, being held by the rod :c at its center, is to a certain extent leXible and may yield at its ends in response to the pull of the brakestraps on the arms r of levers g as an incident to their friction-grip on the rotating reel. It the machine is suddenlystarted up the stress on the warp threads is absorbed by the lever structure; thus breakage of the warp threads, so common where the inertia of dead weights must be overcome on suddenly imposing` a strain on the threads, is avoided.

By the described means oradjustably imposing a strain on the brake-straps the iinest degrees of adjustment may be obtained by a simple and conveniently eiected manipulation; adjustment may be effectec either by nut o or nuts u, or both, as conditions require. By duplicating the braking means and applying the braking resistance at both sides or" the reel an equalized braking resistance is applied such as will avoid torsion oic the reel and keep it true to its bearings.

V'There the machine is also adapted tor warping itmay in some eases be desired to allor7 the reel to rotate without braking resistance. ln such a case, the nut o is turned to move the lever structure counter-clockwise, tending to elevate the brake-straps clear of the bands 7. rThe strips j give rigidity to the straps at this time as to their end portions which are attached to the lever structure, which, taken with the fact thatk the brackets 7c extend well up to the reel bands f, inst 1e the straps against falling toene side out of embracing relation to the reel bands.

racines An importantifeature oi my invention is the placing ot' the brakingpressure-adjusting element 0) at the beam end oi the machine, whereby the operator can set the tension to a nicety. without leaving the position required vfor starting and stopping the beam driving means g, the usual controlling treadle tor which is shown at 2, Fig. 1.

Having thus fully described my invention, what 1 claim as new and desire to secure by Letters Patent is l. 1n a machine ofthe class described having a rotary member whose rotation is to be resisted, the combination kof a supporting structure and mechanism therein to resist rotation of said member including a brake device to rictionally contact with said member and means to resist movement of said device with said member due to friction between them including a iiexible elastic lever structure; said supporting struc* ture having means to support said member with its axis parallel with the fulcrum of said lever structure.

2. 1n a machine of the class described having a rotary member whose rotation is` to be resisted, said member having around its axis a pair of spaced braking surfaces, the combination of a supporting structure and mechanism therein to resist rotation of said member including a pair of brake devices to -rictionally contact with said surfaces, and means to resist movement of said devices with said member due to friction between said devices and surfaces including a bar, spaced levers connected by and each having its axis parallel with said bar, means to connect said levers with said devices and means to connect the bar at a point therein between said levers withl said supporting structure.

3. 1n a machine of the class described having a rotary member whose rotationis to be resisted, the combination ofasup-V porting structure and mechanism therein to resist rotation of said member including a brake device to i'rictionally contact with said member and means to resist-movement of said device with said member due to friction between them including a pair of levers arranged in said supporting structure and fulcrumed on a common axis, means to change the angularity of one of. said levers with reference to the other, the brake device being connected with one lever, and means to connect the other lever with said supporting structure. y

a. ln combination, a supporting structure, a rotary member ournaled therein', a brakestrap having braking contact with `said member, an anchorage bracket forthe brake-V strap pivoted Yin said` structure and projecting toward't-he periphery of said member and having one end or' the strap attached to its. free end portion, and means, attached to the other end of the strap, for exerting tension on the latter.

5. In combination, a supporting structure, a rotary member journaled therein, a brakestrap having braking Contact With said member, an anchorage bracket for the brake-strap pivoted in said structure on an axis parallel with the axis 4of rotation of said member and projecting toward the periphery of said member and having one end vl0v of the strap attached to its free end portion, and means, attached to the other end of the strap, for exerting tension on the latter.

In testimony whereof I aiiiX my signature.

GRANT SIPP.

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