US2504939A - Loom frame and parts - Google Patents

Description

April 18, 1950 J, M TUTEN 2,504,939

LooM FRAME AND PARTS Filed Nov. 21,.1946 4 Sheets-Sheet 1 JAMES M TUTEN AGENT April 1s, 195o Filed Nov. 2l, 1946 J. M. TUTEN LOOM FRAME AND PARTS 4 Sheets-Sheet 2 r )F1 :Lw-r l I r L' :d g E 54 a6 56 52 g 111 L? l INVENToR. JAME M. TUTEN April 18, 1950 J. M. TUTEN 'LooM FRAME AND PARTS 4 Sheets-Sheet 3 Filed Nov. 21, 1946 INVEN TOR. JAME M. T UTEN pril 18, 1950 J. M; 'ru'rEN Loom FRAME AND PARTS 4 Sheets-Sheet 4 Filed Nov. 21, 1946 I N VEN TOR. JAMES M TUTEN considerably reduced even when they atente pr.

LooM FRAME ANTD- PARTS James M. Tuten', Greenville; S". C., assigner to Draper Corporation, Hopedale, Mass., a corpoh' ration of Maine Application November 21, 1946, seran No. 711,282

This invention pertains to weaving looms, and more particularly to loom frame structures and appurtenant means supported by such structures.

Many looms now used by textile mills are :found to be operating at an economic disadvan- `tage to their owners due principally to the relatively 'low maximum rateof speed at `which the Blooms can be operated. The rate at which a loom :may be operated is limited by a plurality of fao- `tors, some of .the more important of which are rthe extent or degree of vibration induced in the j-loom by its several moving parts and the attendant danger of deformation or breakageof parts. IEXcessive vibration induces abnormally rapid Wear of loom parts andusually results in the fweaving of a sub-standard quality of cloth. It is desirable that the loom operate at the'maximum n'ate consistent with safety and good weaving, to ;reduce the cost of weaving each unit of cloth. It is found, however, that when ordinary looms are operated much above their rated speed, excessive wibration occurs, accompanied Vby poor quality of fweaving, rapid wear and deformation of parts, and :an excessive number of loom stoppages.

As a result it is generally found to be uneco- :nomicai -to operate the looms above their. rated speed of operation. Efforts' have been made to `overcomethe difficulties encountered injoperating looms above their rated speed, but with-only indifferent success. Fory example, it has been`proposed to render the loom frame more -rigid by attachment of additional girt means .extending between the loomsides. `These prior efforts were -at best only partly successful tain the desired results.

With the abovevconsiderations in view, it is an object of the .invention to provide means whereby the speed of looms may safely be considerably increased.

and did not at- It is further an object of the invention to provide means whereby Vvibration in looms may be are operated at abnormally high speeds. -Y

It also is an object of the invention toprovide means accomplishing the Vabove mentioned objects which can equally well'be applied `to existin looms and incorporated into new looms.

It is another object of the invention to provid a loomside stiffening top girt' means soarranged as to transmit crankshaft thrust directly to the stiifened loomsides without deformation of the crankshaft or the loomsides.

It is a further object of the invention to provide a top girt end `structure' which is'so con- 18 Claims. (Cl. 139-4) structed and arrangedras'l tofpo'sitively maintain 55 the crankshaft bearing boxes at a loomside in i permanent alignment.

It is a further object of the invention to provide an improved loom frame including frame reinforcing members providing improved bearing supporting means for movable parts of the loom.

It also is an object of the invention to provide means for stiifening the framework of a loom in critical portions thereof and for reducing vibration incident to loom operation.

The above and other objects which will bec-ome evident hereinafter are accomplished by the invention, one preferred embodiment of whichis described in connection with the following description and accompanying drawings, of which:

i Fig. 1 is a pictorial view of a loom with certain conventional parts removed and portions displaced, with means of the invention applied thereto;

Fig. 2 is a. view of a loom fra-me incorporating means of the invention, as seen from the top of the loom, with certain other conventional parts.

Fig. 3 is a pictorial view of a top girt end according to the invention, showing a fragment of a loomside in outline to illustrate the mode of stiifening the loomside and supporting the top girt end thereon; and buttressing crankshaft bearing boxes.

Fig. 4 is a View showing how the center piece of atop girt is supported by Samson means bearing upon a weave room door.

Fig. 5 is a view illustrating howA diagonal and angle loomside bracing structures according to the invention are secured to a loomside in opposed mutual bracing relationship;

Fig. 6 is a pictorial view of a loom sidev reinforcing top girt end according to the invention; Fig. 7 is a plan view of the top girt end shown pictorially in Fig. 6;

Fig. 8 is an end view of the top girt end show pictorially in Fig. 6;

Fig. 9 is a sectional view along line 9 9 in Fig. 7;

Fig. 10 is a Vsectional view along line l-I in Fig. 7;

Fig. 11 is a view in elevation of the top girt end shown pctorially in Fig. 6, viewed from the inner end thereof;

Fig. 12 is a view showing'loom drivingV means and loom frame bracing support structure for the driving means.

Reference will be made hereinafter to the sev eral drawings, wherein like parts in the'several views bear like reference numbers.

A ,loom to which the several featuresof them- KAsame :model and manufacture.

vention apply is shown pictorially in Fig. 1 with the invention applied thereto. The loom framing comprises principally: a right hand loomside le, a left hand loomside l2, a front girt i4, a rear girt I6, a right hand middle girt i8, a left hand middle girt 20, and an arch Bil comprising a right hand arch end 3 l, a left hand arch end 32 and an arch connection 33. These several frame parts are se cured together by conventional means such as bolts and nuts in the usual fashion. The frame members carry conventional weaving instrumentalities or mechanisms, sC-me of which are omitted or but partly illustrated in the inte; est of clarity. Of the conventional mechanisms shown there may be mentioned the bobbin battery 83 and lay 82 actuated through pitmans 84 by a two-crank crankshaft 86 rotating in cuter bearing boxes 4'! mounted on vthe loomsides. 'Ihe laf,7 is supported for oscillation upon swords 83 interconnected by a hand rail 85. The swords are affixed at their lower ends upon a rocker shaft 8l. Below the crankshaft 85 and geared thereto is a camshaft 83 carrying -gears and cams including harness treadle cams S3 actuating treadles 92 and also carrying pick cams 94 emplcyed to operate picker means 95.

Crankshaft 86 carries adjacent the loomside I a clutch, brake and gearing mechanism indicated generally by the numeral ill!) which is geared to a drive 'motormeans m2 (Fig. 12) and to the cam shaft 88 through gear |04 (Fig. 1'2). These driving means including the motor 'are mounted'ona base |08. Harness means (not shown) may be supported by arch and actuated by the treadles '92, all in usual manner. L

The hereinabove described loom frame and weaving mechanismsare well known and oper- 'ate Vin conventional manner and form per se no part of the invention. The loom operates vin :generally satisfactory manner as long as a `"relatively low operating speed is maintained. As

noted hereinabove, increase operating speed is sides broken.

Tol achieve the abovementioned objects of the 'invention there arejprovided' means which'affor'd increased stiffness and strength at the'loomsides,

While affording `better and more secure bearing surfaces for'the critical moving parts, whereby v'vibration is greatly reduced and objectionable deformation of loom parts is obviated even at much higher than rated loom speed. These?,

means are described hereinafter.

Extending betweenthe' loomsides and resting thereupon in a manner hereinafter more `par- 'ticularly pointed out, there is provided a top girt comprising a right hand girt end 52,

""a left hand girt' end 54 and 'a' connectorV 55. v"'lhegirt ends 52 and 54 are adjustably interconnected by the connector 56. Connector vis "attached'to the endsb'y suitable means, as bolts 40 passing' through elongated holes in the con-- nector and holes 42 in the girt ends. This'adjustability is necessarv since it ie found in lpractlce that the loomsides are not spaced .exactly the same distance apart in all looms ofthe The two girtends elle Vinner face of the respective loomside.

'vupstanding portion Il of loomside l2. Abe kept in mind that similar structuresfand arare of similar construction but of opposite hand. In View of this similarity the description will be limited to the girt end at one loomside. Referring to Figs. 6-11 inclusive the left hand girt end 54 is seen to be comprised of a single rigid piece, preferably in the form of a casting of such thickness in its portions to give the required strength and rigidity. The end comprises a re1- atively long vertically arranged flange constructed to present an extensive vertically extending surface 6I for abutment against the As shown in Figs. 6 and 11, this ange is provided with a plurality of holes, as 62, whereby the end may be securely fastened to the loomside, as by bolts. The end is further provided with a horizontally extending flange Y63 which is arranged to overlie and present a horizontally extending surface 63a (Fig. 8) lto a portion of the upper surface I3 of the loomside. See Fig. 3. The girt end is also provided with an inwardly and horizontally extending flange 59 which may be used to support any desired conventional warp stop means. When securely fastened to the loomside with the complementary surfaces in close engagement, the girt end is rm'y supported against downward movement by the horizontally extending flange, andthe loomside is found to be greatly stiifened and strengthened by the action of the vertically extending flange. A'reason for preventing downward slippage of the girtend will apipear hereinafter.

The girt end is provided with aninwardly extending Vwing 64 to which the connector 56 is secured as previously noted. Referring to Fig. 6, next adjacent the attaching 4portieri of wing 64 there is provided'a series of crankshaft bearing -box seat surfaces 65 which are arranged to have lseated thereon aninner crankshaft bearing box `-44. (See Fig. 3.) The'bearingbox 44 is secured to the seat surfaces ofthe girt end by bolts 46. Bearing box 44 includes adjustable thrust screws 45 which are arranged to be adjusted into rm abutting relationship with Va bearing box abutment 66 formed onthe girt end. Girt end 54,

as maybe seenfrom yexamination of Fig.'6, vhas a second crankshaft bearing boxY abutment 48 integral with flange 63, which 'abutment is arrangedto buttress bearing box 41 fromrearward slippage (see Fligj); "To-secure bearing box 41 firmly against abutment '48'and against the upper surface i3 'of loom -slde I2, the bearing box is provided withan adjustable vthrust'screw 49 which is threaded into a tapped hole in the bearing box and is arranged'to bear against an It should rangements exist at the opposite side of `the loom in connection with top .girt en'd 52 and loomside i0. As a result ofthe bearing'box abutments buttressingthe boxes, rearwardthrust of the crankshaft,'as when vthe laylis Y suddenly stopped in its forward movement. is transmitted Vthrough the bearings directly tothe girt ends and the loom sides, thus obviating slippage and deformation or breakage of the crankshaft. Additionally theV inner bearings -obviate undue vibration of the crankshaft. Girt end `54 is provided with a crankshaft wellor opening .Si arranged to accommodate'the respective crankarm of the crankshaft, and bounded by flange lill, wing 64 and two portions 68 and E9. It will be noted that portion 'is'arranged to transmit crankshaft thrust directly from screws 45 v'to the adjacent loomside.

f Referring to Figs. 1 and 4k it will be seen that the connector 56 interconnecting the top girt ends is utilized as an anchorage for the upper ends of samsons 22, 24, which are secured in bracing relationl to middle girts I8 and 20, respectively and which are provided with adjustable feet 26, 28, respectively, which are arranged to rest upon the Weave room floor and thus firmly support the middle girts and the samsons. The samsons 22 and 24 thus firmly support the top girt connector 56,-and are themselves held in rigid xation to provide firm supports for intermediate bearings 21,29 for camshaft 88. Thus vibration andexcessive wearing of the camshaft at high speeds is obviated and the loom frame rendered more rigid. The several Samson parts and associated structures are secured together by suitable means, as by bolts as illustrated.

. To avoid excessive accumulation of lint thereon, the upper surface of the top girt connector 56 is arched or rounded, as shown more clearly in Fig. 4.

To additionally brace the loom frame against deformation and to reduce vibration, as well as to provide more rigid bearing means for the lay supporting structures, there is provided at each lower front corner of theloom frame, an adjustable articulated diagonal bracket. (See Figs. 1 and 5.) The two brackets are similar but are of opposite hand. Further description will be limited to bracket 1| at the right hand side of the loom, it being kept in mind that a similarV and complementary diagonal bracket is at the other side ofthe loom. Bracket 1| comprises a rear bracket piece 12 suitably secured in adjustable position on the inner face of loomside I0, as by bolts 19, and a front bracket piece 13 secured in adjustable position on front girt i4 as by bolts 18. Adjustability is provided by making the bolt holes in pieces 12 and 13 of elongated form. The two bracket pieces are securely fastened together as by bolts 11 passing through complementary elongated holes in the pieces, whereby the rigid, articulated bracket 1| forms an effectively rigid but adjustable loom frame brace. Bracket piece 13 is provided with a downwardly directed iiange 14 to `which is adjustably secured as by bolts 11a a rocker shaft bearing bracket 15. (See Fig. 5.) The bearing bracket forms the lower half of a bearing and has attached thereto as by bolts 15a a.

bearing cap 16. The two pieces in combination form an intermediate bearing for the rocker shaft 81. Together with the usual rockershaft bearing in the adjacent loomside I0, the new bearing effectively eliminates vibration of a respective end of the rocker shaft and excessive wear at the respective rocker shaft bearings.

Abutting against the loomside l in opposition to bracket 1| and secured to said loomside by the same bolts 19 is one angle bracket ||0 (see Figs. 1, 5, and 12) comprised in structure supporting the drive means base |08. Base |08 supports the previously mentioned drive motor |02 and a bearing |09 in which the clutch end of crankshaft 86 is supported. The base extends outward at right angles to the loomside I0, and in looms of the type toward which the present invention is principally directed, has been supported by a vertical stand extending upwardly from the Weave room floor. According to the invention, the base |08 is attached as usual to the loomside, but is otherwise supported by loomside bracing' members including the previously mentioned angle bracket l0. This bracket, and opposing diagonal bracket 1| act where the two are bolted to the loomside 0 to ef- ,fe'ctively strengthen the loomside in that region and act to distribute forces' more" uniformly throughout the loom frame rather than' allowing such forces to be applied in concentration upon restricted portions of the frame. Base |08 is additionally supported at the rear thereof by additional angle brackets and I2 which are secured to the base |08 (Figs. 1 and 12) and which are secured to loomside |0 in opposition to rear girt I6. As more clearly shown in Fig. 1, brackets and ||2 are secured to loomside I0 by the same means employed in securing rear girt |6 to that loomside, and act with that girt to materially stiifen the loomside and to more uniformly distribute forces throughout the loom frame.

From the above it will be noted that loomside I0, which is subjected to much greater forces than is the opposite loomside 2, is braced in the region where the driving and clutching forces are applied, by top girt end 52 and base |08. Further the loomside is braced by opposed brackets 0 and 1|; and additionally braced bythe opposed action of brackets ||2 and rear girt IS. The opposing action of the several brackets and girts eiectively relieves the loomside |0 from objectionable deformation at much higher than rated loom speeds. The opposite loomside is similarly braced by diagonal bracket 10 and girt end 54. The top girt positively maintains the four crankshaft bearing boxes in alignment, effectively eliminating vibration of the crankshaft and directing crankshaft thrust forces to widely distributed portions of the loomsides. It is found that the loom equipped according to the invention may be operated considerably above rated speed without objectionable vibration; and that the objectionable excessive Wear and breakage or deformation of parts is obviated.

It is evident that modifications within the scope of the invention will occur to those skilled in the art, and what I claim and wish to secure by Letters Patent of the United States is:

1. A loom frame comprising loomsides, a front girt, and a back girt, said girts interconnecting the loomsides near the bottom thereof; and top girt means interconnecting the loomsides near the tops thereof, said top girt comprising central section and a detachable top girt end, connecting means between the said top girt and its detachable end, said means comprising a means for longitudinally varying the position of the end relatively to the central section of the girt, and said end being constructed and arranged to abut against and brace against deformation a substantial portion of a loomside and having a horizontal flange portion overlying and resting upon an upper surface of said loomside. p

2. For a loom including loomsides, a crankshaft extending between and transversely of the loomsides, and two bearing boxes rotatably supporting each end of the crankshaft; top girt means interconnecting the loomsides and comprising a detachable top girt end, said girt end comprising a loomside stiifening iiange with a vertically extending surface to abut against a loom side and a supporting ange with a horizontally extending surface arranged to overlie and rest upon the top of said loomside, said end comprising at least one portion providing a crankshaft bearing box seat for one of said bearings and a bearing abutment for another of said bearings.

3. For a loom including loomsides, a crankshaft extending between and transversely of the loomsides, and bearing boxes rotatably supporting the crankshaft; top girt means interconnecting the loomsides and comprising a detach* bl" top girtv end,- e'ad girt end comprisingV loo'rnsid'e stiienig ilg with a vetially ex= tending surface to abut against a loornside and a supporting flange with a horizontally extending surface arranged to verlie and rest upon the top of said loorside; said end comprising at least onel portion providing a crankshaft bearing boxseat and bearing bok abutment arranged to absorb crankshaftA bearing box thrust. 4. For a loom having a loornside presenting a vrticany extending inner face and a horizontally extending face; a top girtend, said'girt end having along looms'ide s'tiffening flange portion presenting a vertically extending face for abutment against and attachment to said inner face of the loomsideand having a sup porting flange portion with a horizontally extend- 4ipng'face for cooperation withv said horizontally extending` face of the loomside, whereby the loomside e'eetively supports `the girt end from vertical slippage and is stiffened by the girt end.

5. In a loom having loornside anda ,crankshaft extending transversely of the loornsides; a top girt interconnecting the loomsides and means firmly securing the top girt to the loomsides, said top lgirt having portions respectively abutting against and overlying and resting upon at least one of the lo'ornsides; crankshaft bearing box structures rotatably supporting said crankshaft; seats on said loomsides and seats on said top girt, each seat supporting a respective one of said' bearing box structures; and vertical abutments" on said top girt preventing rearward slippage of said bearingl box structures under crankshaft thrust. Y

6. In a loom, rst and second loomsides each having a crankshaft bearing box seatthereon, front and rear girts inter-connecting the loomsides near' the bottoms thereof, means including a top girt interconnecting and resting upon and bracing respective loomsides and having bearing box seats' and bearing' box abutrnerits integral therewith, bearing box means one on each ofv said seats and each engaged with one of said abutments, a two-crank shaft rotatably supported in and by said boxes and prevented from rearward movement by said abutments, a rocker shaft,l allay subject: to sudden stoppage mounted on said rocker shaft' for oscillatory rocking` movement, means' operated by the crankshaft to oscillate said lay, first and second d ,goial braces interconnecting said' front girt" w1 said' first and second loomsides respectiveiy and brac-v ing tlielatten. means securing the diagonal;

braces tothe frontgirt, bearings one oneachhoff said. diagonal braces and rotatably' supporti-rig" i'rfiitfg Atot 'girt interconnecting v'ein mns'ides, Said top girt having ends each ofwhich includs a inner and an outer bearing bX abut; nent and -ifriifr" tearing bog seat, ,each 'ena further including vertical and horizontal flange Ineansqtightly,engaging, respectively, an exten-'j sive `irfirier and an upper surface of a respective looinside to brace the looin's'ide and to up'pot thegirt end; inner crankshaft bearing boxes 'one seated each top girt end in engagement with an inner bearing box abutment, and outer crank; shaft bearingboxes each on a respective loom'- side and ergagir'ig"anwouter [bearing box abutfne'nt of the' adjacent top girt end; a twocrank crankshaft rotatably mounted in'said bearing boxes with each crank thereof between respec-` tive inner and outer bearing boxes; a forwardly and rearwardly movingV lay subject towsudden st in'ipagek during forward movements ythereof; inear'is operated by said crankshaft to move said lay; in'eans including swords and a rocker shaft movablyl supporting said, lay; loomside bracing inean's including diagonal brackets interconnecting respective loomsides with said front girt and movably supporting said rocker shaft; and means securely fastening 4said top girt ends each to its respective i'oorn'side; whereby said bearing boxes are all positively held in aligned position and rearward thrustexerte'd' thereon by the crankshaft upon sudden stoppage of the layis transinitted directly through said abutments and to the braed looifis'ides. l l

In a loom; loonisides and front and rear girt means interconnecting the loomsides; a twocrank crankshaft extending generally between arid transversely of the loomsides with each crank Vthereof positioned near a respective loomsie and inwardly thereof; outer bearing box neans one supported -on and secured to each loo'ms'ide and rotatably receiving said crankshaft; inner bearing box means one positioned hearthe inner arm of a respective crank of said crankshaft and rotatably receiving the latter; tof girt means securely interconnectinglithe loomsides in the vicinity of the crankshaft and in;V cluding detachable' top girt ends", each of said ends including abev box seat supporting a respective inner bear box'v thereon and includ-l inga et'sive vertical flange and a' horizontal an upper' surface of a loomside to brace the latper' andiecludmg an; meer and an' outer bearing box abutmentV eachbutt'r'ess'ing against rearward ciankshaft thrust a respective inner and outer crankshaft bearing box and includingmeans for directly transmitting rearward crankshaft thrust from theY respective inner bearing box means direetly to the bracedportionl of the respective loomside. i n

9. An article of manufacture for strengthening looms, comprisingajplural-sectin top girt including two detachablelgirtv ends; each girt end comprising" a portion forming a centrally located well,Y a bearingfboxY seat and a bearing box abutmen-tat the inner side of said well, a vertical stiiening fia-nge and a horizontal girt end supporting: 'ange at the outer side of said wel1, and a bearingk box` abutment integral with said last named flange.

l0. For a" loom having loomsides, a cranksha-'ft extending between and transversely of the looi'nsides and a front girt and a back girt conn'ecti'rgsaid loomsides, atop girt comprising a longitudinal, central' section and end members; said' endv members; having vertical and" horizontal flange portions by which they are rigidly attached to the said loomsides, and interconnecting means between said central section and end members comprising longitudinally disposed pads on each, registering openings between the section and end members at the pads, the openings in one pad being elongated to provide for adjustment of an end relatively to the central section, and bolt means passing through the openings for rigidly clamping the central section and ends in position after the ends have been attached to the loomsides.

11. For a loom having loomsides, a crankshaft extending between and transversely of the loomsides, a crank throw at each end thereof, and a front girt and a back girt connecting said loomsides, a top girt comprising a longitudinal, central section and end members, said end members having vertical and horizontal flange portions by which they are rigidly attached to the said loomsides, bearing means at each side of a crank throw, one said bearing means being attached to a loomside and the other to the adjacent end member of the top girt, and shoulders forming a part of said end members against which said bearing means abut thereby to brace said bearing means against forces imparted thereto by the crankshaft, and interconnecting means between said central section and end members comprising longitudinally disposed pads on each, registering openings between the section and end members at the pads, the openings in one pad being elongated to provide for adjustment of an end relatively to the central section, and bolt means passing through the openings for rigidly clamping the central section and ends in position after the ends have been attached to the loomsides.

12. For a loom having loomsides, a crankshaft extending between and transversely of the loomsides, a crank throw at each end thereof, and a front girt and a back girt connecting said loomsides, a top girt comprising a longitudinal, central section and end portions, said end portions having flanges by which the girt is rigidly attached to the loomsides, bearing means at each side of each crank throw, one said bearing means being attached to the loomside and the other to the adjacent end portion of the girt, and shoulders formed as an integral part of the end portions of the girt and so positioned that the bearing means abut against them thereby to position the bearings against forces imparted thereto by the crankshaft.

13. Mechanism as dened in claim 12 wherein one of said bearing means is provided with adjusting means to position it relatively to the cooperating shoulder against which it and the said adjusting means abut.

14. For a loom having loomsides, a crankshaft extending between and transversely of the loomsides, a crank throw at each end thereof, and a front girt and a back girt connecting said loomsides, a top girt comprising a longitudinal, central section and end portions, said end portions each having a vertical flange for abutting against the loomside to which it is attached and a horizontal flange covering the top of the loomside l0 for positioning the girt vertically, and bolt means passing through each of the ilanges and the loomside for securing the girt to the loomside.

15. For a. loom having loomsides, a crankshaft extending between and transversely of the loomsides, a crank throw at each end thereof, and a front girt and a back girt connecting said loomsides, a top girt comprising a longitudinal, central section and end portions, said end portions each having a vertical ange for abutting against the loomside to which it is attached and a hori- Zonta] flange overlying the top of the loomside for positioning the girt vertically, bolt means passing through each of the flanges and the loomside for securing the girt to the loomside, bearings for the crankshaft and pads to which said bearings are attached, one pad being formed as a part of the loomside and the other as a part of the top/girt and positioned so that the bearing attached thereto supports the crankshaft at the opposite side ofthe throw from that bear ing attached to the loomside, and shoulders comprising an integral part of the girt for bracing the bearings against the reaction of the crankshaft, one for the bearing attached to the girt, and another adjacent the flange overlying the loomside, for the bearing attached to the loomside.

16. For a loom having loomsides, a crankshaft extending between and transversely of the loomsides, a crank throw at each end thereof, and a front girt and a back girt connecting said loomsides, a top girt for bracing said loomsides adjacent a point where the crankshaft attaches thereto and a diagonal brace at each side of said loom and connecting means attaching said braces to the front girt at a point spaced from the loomside and to the loomside at a point intermediate the point of attachment ofthe front girt and the top girt to the said loomside.`

17. Mechanism as dened in claim 16 wherein said diagonal braces also have attached thereto a bearing for additionally supporting the rock shaft of the loom.

18. Mechanism as dened in claim 16 wherein one of said loomsides has attached thereto a motor supporting bracket, braces from the lower portion of the loomside to said bracket, one of said braces being connected to the loomside by connecting means passing through the loomside and the diagonal brace adjacent thereto.

JAMES M. TUTEN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 254,027 Knowles Feb. 21, 1882 300,483 Knowles June 17, 1884 1,551,746 Jenckes Sept. 1, 1925 1,811,705 Bergstrom June 23, 1931 2,351,513 Hunt June 13, 1944 FOREIGN PATENTS Number Country Date 324,310 Germany Aug. 26, 1920

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