US2689984A - Saddle for top rolls - Google Patents

Description

P 23, 1954 R. K. WHITEHEAD 2,689,984

' SADDLE FOR TOP ROLLS Filed March 16, 1949 2 Sheets-Sheet 1 lllllllll l NVENTOR 3Q a 1? 20 a is '25 ORNEYS P 28, 1954 R. K. WHITEHEAD 2,689,984

SADDLE FOR TOP- ROLLS 'F'iled March 16, 1949 2 Sheets-Sheet 2 Fig.5. 34 3 14 25 4 Q 4 5 12 j 1/ ATTORNEYS Patented Sept. 28, 1954 UNITED STATES PATENT OFFIQE SADDLE-FOR TOPRJOLLS.

RichardK. .Whitehead, Newnan,.Ga.

AppIicatiOn-Mitrchlfi, 1949; Serial-Nu. 81,796

14 Claims. 1

Myinventionrelates to asaddle forthe-top rolls of spinning and like textile machines,

It isanobject of myinvention to provide a generally improved saddle for top rolls;

It is another object to provide an improved saddle for top rolls involving two: saddle: blocks having improved means for securely: though; detachablyholding; the saddle blocks together:

It is another object to; provide an, improved saddle for top ro1ls, which will be; substantially non-liming.

Still anotherobject is; to provide an: improved saddle for top rolls in which the bearings will be self-lubricatingand which willhave extremely long life;

A further objectisto; provide:- a saddle which will not out: the top roll, journalswhen: the;b earings wear down so, as; to,- drop. the saddle; blocks directly; nto; the" rolljournals;

It. is another object, to; provide an improved bearing block member for top roll saddles); cap bar nibsand the like, which will; be. selfgrluhri-e eating, HOHrSQili-DE, andhave extremely: long life, and inwhich friction. will, he reduced to. a; mini:-

mum.

It is another object to provide an; improved saddle; for toprolls, which will: jacknife, readily-to permit lifting up of; any one :ofthe 1701,);101155.

Other objects and various features; of novelty and invention will be? hereinafter pointed out or will. become apparent to those skilled; in the art;

In. the drawings which, show,; for: illustrative purposes only, preferred? forms of theinvention Fig, 1 isa side view in elevation: ofi one-form of my improved saddle for; top: rolls; ShQWlIIg the saddle in place on top: rolls and showing the stirrup engaging a: conventional type of: weight lever;

Fig. 2 isa central, longitudinali sectional; View through. the; saddlashowninF-ig. 1', the stirrup being broken away;-

Fig. 3 is a bottomzplan: view of-ithe saddle: shown inFig. 2.;

Fig. 4 is a sectional; view; on an: enlarged scale; taken substantially in: the plane ofiths. line ti -4 of Figt2a.

Fig. 5 is a. bottom plan view on; an. enlarged scale of a front saddle block, a part; of one side flange being shownin section;

Fig, 6 is a sectional view, taken substantially inztheplane of the line 6--6:ofF-ig.'- 5;;

Fig. '7-is a perspective'view of'abearing block, typical of: bearing blocks, tdbe'used: in my improved saddle;

Fig iidaa viewdn-iside'xelevation or asa'ddlelike 2 those, heretofore: shown, but; illustrating: a differ ent; for-m ofl stirrup;

Fig. 9 is a view; side elevation ofa jump saddle illustrating features-of the invention;

Fig. 10;is atbottom plan view of the jump-saddle shown. in Fig. 9; the stirrup being omitted; and, v

Fig; 11 is a view in side elevation of a two-roll saddle-for use in, a self weighted center roll S5731 tema In saidv drawings, 5--B- indicate the front; center, and rear driven rolls of a drawing system, while; 8,-9i--l0-indicate1the top rolls having the front journal: H, center journal l2, and, rear journal l3, upon which journals: my improved saddle is adapted to rest...

My improved: saddle includes a front saddle block 14- and; a back saddle block 15. The front saddle block is: of; g nerally. curvedor arcuate shapeinilongitudinal.section, so as to provide a smooth surface; without projections, to avoid linting. The block, [4? is preferably formed, of die-cast, highrstrength aluminum; and; since it is preferably die cast itsmay be, very accurately formed sotthat-a'lllparts designed to fit therewith may fit withexact; nicety. At the front, the sad? dle member M has a.v front bearing blockv Hi, which; as, will; be laten described; is forced into a pocket or recess; die-cast, in; the saddle block. The front, saddlerblock H1 isprovided with a longitudinally extending narrow channel H, which 180518. width snugly-to receive astirrup [8, which may be'of fiat stock. The saddle block- 14; is pro-- vided, with aplu-rality ofsetsof holes: t9? for. the reception of; a pivot 20 forpivotally supporting the stirrup lBiin, the; saddle block M. The stirrup; lfiimayxbe curved asshown in Figs; 1 to 4-, onmay-belstraight as shown in Fig. 9, or may be otherwisers'haped as shown,,f,or example, irrFigs: 8; and 1,1,, to fitcdilferentspinning systems, all; as will be understood;- 7 At: each side; of the: channel and defining the. lowerlimits of the channel are. bearing surfaces or lands 2-l,-2|' extending longitudinally and substantially to the rear of; the saddlebloch M; Thesezbearing surfaces are designed to, support the.- back saddle block 15 The back saddle. block: 15 is preferably: also" ofv die-cast aluminum, and in the preferred form\ has. a shaped bearing; blocks 22, for engaging; the-- journal of. the. rear top. roll, and a flat bearing block 23 for engaging the center top, roll. The; back saddleblock preferably has a: rounded or generally arcuate bearing surface 2,4 for fitting, on the bearing surfaceor surfacesz'l of the, front. saddle block;

I employ novel'- means" to" hold the front and back saddle blocks in detachably, though securely, assembled relationship. The front block, in the preferred form, has downwardly extending longitudinal flanges 2525 for rather snugly embracing the sides of the back saddle block l5. One of the blocks (in this case the front saddle block [4) has grooves 26-26 milled or otherwise formed therein, on the inner sides of the flanges and facing each other. The other block (in this case the back block l5) has projecting means which may be in the form of integral bosses 21-4! for fitting in the grooves 25. In the preferred form, the grooves 26-25 are of considerable vertical extent and considerably larger than the bosses 2a2l, so that the back saddle member It may move up and down, as well as longitudinally, of the front saddle block Ill, and may also pivot freely therein so that the saddle may be jackknifed when occasion requires. The bosses 2l-2l are of such an extent, and the flanges are so formed, that when the two saddle parts may be forcibly engaged with each other, the bosses will spring the flanges 25 apart sufficiently so as to permit entry of the bosses in the grooves 26-26. The saddle blocks may be separated from each other by merely pulling them apart, thus spreading the flanges 2b25 and permitting the bosses to leave the grooves 26-46. As shown, particularly in Fig. 4, the side flanges 25-25 adjacent the edges turn inwardly to form abutments to be engaged by the abutment means 27-2? which are wider than the space between the inturned edges of the flanges. Thus the saddle blocks are loosely held together.

When the stirrup is of the form shown in Fig. 8, the back saddle block l5 need not be slotted, as shown at 28, for the passage of the stirrup 18. For the sake of uniformity, both saddle blocks [4-45 may be formed as shown in Figs. 1 to l, regardless of the type of stirrup, though, of course, if stirrups of the types shown in Figs. 8-11 are to be employed, there is no real necessity for slotting the rear block l5, nor for extending the channel H for the stirrup as far back as has been shown. in Fig. 2. It will be seen, then, that since the saddle blocks i l-I 5 fit each other quite snugly and since the stirrup I8 fits the channel l1 quite snugly, there is substantially no chance for the saddle to turn over when it is engaged with the top roll journals. Furthermore, since the bottom of the stirrup has a hole for fitting the weighting lever 29 quite snugly, there is substantially no chance for the saddle to wander back and forth on the top roll journals.

The bearing blocks which I prefer to employ are formed of wood or other fibers, suitably held together and presented to the top roll journals on end grain. Wood, impregnated with oil, and presented end grain to the top roll journals, will be relatively frictionless and will be self-lubricating. It should be understood that, when the bearing blocks are presented on end grain to the top roll journals, substantially the entire surface of the bearing block will be a lubricating surface, since oil or other lubricant may flow down the capillaries, over the entire end grain surface in contact with the rolls, whereas, if the bearing blocks were presented on side grain to the rolls, there would be very few capillary passages in contact with the roll journals, and likely the lubricant would be insuflicient. In addition to providing bearing blocks of good bearin wood impregnated with oil or other lubricant, I contemplate the employment of other fibers, preferably cellulose fibers, held together as by means of a phenolic condensation product, impregnated with oil or other lubricant. The bearing blocks, in any event, are preferably presented to the top roll journals on end grain so as to provide the self-lubricating bearing blocks, as heretofore noted. These bearing blocks of wood or other fiber, preferably cellulose suitably held together and presented on end grain, will be highly useful, and I contemplate using them, in the cap bars in which the ends of the top rolls are guided. The cap bar nibs are presented on end grain and will be self-lubricating. The amount of oil or other lubricant exuding from the bearing blocks will be slight, yet sufficient. The amount will never be sufficient to overrun and soil the yarn, and yet will be suflicient to lubricate the journals for substantially the life of the bearing blocks. A typical caring block of wood or other fiber on end grain is shown in Fig. 7, wherein the block has a generally rectangular base as shown at 30, and in the particular form shown is formed as at 3| to fit over a journal. It will be clear from that figure that substantially the entire surface of the bearing block in contact with the journal will be a capillary contact to provide lubrication.

My improved blocks are preferably formed to size with reasonable accuracy. As has been heretofore stated, the blocks, such as it, 23, and 22 of the saddle heretofore described are held in recesses in the saddle blocks. Such bearing blocks are preferably of the types heretofore described. All of the saddle parts which are designed to receive bearing blocks are preferably formed by die-casting and are quite accurately formed. As shown in Fig. 5, I provide means for securely holding the bearing blocks in place without damage either to the saddle block or to the bearing block. In the form illustrated particularly in Figs. 5 and 6, the recess 32, which may be considered as typical of all of the recesses in the various saddles described, or to be described, may be of angular shape, Or of any desired shape, so long as the bearing blocks are of substantially corresponding shape. As shown, the recess 32 has small projections 33-33, preferably pointed toward the open ends of the recesses and projecting inwardly into the recesses. These projections are shown in Figs. 5 and 6 in somewhat exaggerated form, since they need not be actually as large as shown. When the bearing blocks are forced into the recesses, the projections 33 will bite into the bearing blocks, particularly if they be presented end grain, and the bearing blocks will be very securely held in place. The sides of the recesses 32 will give adequate support to the bearing blocks so that there will be no danger of splitting of those bearing blocks when forcing the same into the recesses, or when in use. If the bearing blocks should wear out, or if for any reason it is desired to remove a bearing block, the saddle blocks are provided with holes 35 through which a drift pin may be passed for driving the blocks out.

In the saddle shown in Fig. 8, all of the parts are substantially the same as those heretofore described, except that the stirrup i8 is of a different form.

In that form of the invention shown in Figs. 9 and 10, I illustrate a jump saddle which is employed in a self-weighted center roll system. As shown in Figs. 9 and 10, the jump saddle comprises a single saddle part 40, having a front bearing to engage the front roll journal H, and having one or a plurality of rear bearings 41 for engaging the? rear: roll. I 3.... 'Ilhe'e center. roll 2.'-, intthis instance; is 1 of the: selfeweightedatype and is. not engaged by my jumpl saddle. The saddle is provided-I with a. channel 42." for: snugly. receiving the topl-of: a stirrup; 4'3, a'-nd the. saddle is provided. with a plurality of. holes 44' forms solving a pin 45' for adjustably" and pivotally. supporting the stirrup in the saddle 40.

In that form: of the invention. shown: in". Fig. 1 1, I show. a two-rolli saddle employed somewhat: after the manner ofajump saddle; whereinthere' is a self-weighted center roll; The front' saddl'e block: may. be a-duplicate of the saddle-block show-n in: Big. 2, and the rear: saddle blockll: may. be'a' simple blook corresponding tothearean saddle block l5, but being provided. with as single bearing block 4'8. Therear saddle: bl'oek MI is preferably not pivotally mounted, but has: a flat,-- upper surface to ride on the-flat surface 4'9; corresponding in general toLthe-surfa'ce 2 here! tofore described. The flanges may be: provided with grooves 50, and therear saddle block All may be provided with bosses: 51 corresponding tothe grooves 2-6 and bosses 2'1, heretofore deg scribed. Thus, the front saddle 46 may have a front. bearing to engage the front roll H", and the rear saddle block 41 may-have av single beareing &8" to engage the rear roll. I3"; while the middle roll I 2" is preferably self-weighted.

The front andibac'ksaddle blocks and the singleblockof'l ig. 9, asheretofore-stated, are-preferablyformed of dia -cast aluminum. Thepa'r-tsmay'be very accurately made so that all fits: may be as close as desired. Thus, the saddles will be substantially non-tipping and non-wandering. and wear will be reduced. The di'e- -cast='- partsmaybetumbled, buffed or polished so as to. be very smooth on the-outside andthus avoidlinting' up. and facilitate cleaning.

With my improved self-lubricating. "bearing. blocks, no outside lubrication is required and there no chance of soiling the yarn through over-lubrication orleakage ofv "lubricant. The bearing blocks will be very firmly held in their recesses but may be easily knocked out and; replaced when required'.

My improved saddle consists of. but fewparts, and by variously combining parts, saddles may be provided for serving in almost all of thespinning systems. All of the parts may be very readilyassembled. When the type stirrup is. selected, and its position determined, it is. only necessary to drive a pin in place so as to pivotally secure the stirrup permanently and pivotally where, desired. The front and back saddle blocks may be snapped together or snapped apart from each other, and yet when the saddle blocks are engaged with each other, they will be sufficiently securely held together and yet, will be soloosely held that. the saddl pa ts may adjust thems on. the rolls with reat readiness. and the: saddl will jackknife with the greatest ease, when jackknifing is called for, as when one of the roll ends is picked up for cleaning one of the cap bar bearings.

My saddle blocks are formed of a material softer than the top roll journals so that if the bearing blocks should wear down so as to drop the saddle blocks onto the roll journals, the softer blocks will be worn and the harder and more expensive top rolls will not be damaged. When the rolls are formed of cast iron, my saddles may be made of die-cast aluminum, as described, or of other relatively soft, yet strong material.

While the invention has been described in con- 6:? siderable"detail1and;preferredformsaillustrated,.it is to be understood thahvarious: changes may; he madewit'hinthe soopemf the invention-as defined in. the appended? claims.

Iaclaim:

1-.- Ina saddl'e for top rolls; a. front'saddlerblock; ajrear saddle block, said reansaddlebiock having abearing surface for rockabl'y 'engagingzsaidifront saddle block; said front. saddle: block: including side rfianges:.e'extending; downwardly; over said back saddle. block, one: off saddle. blocks having: a longitudinally. extending: groove therein; andtlre other of saidsaddle blocksahaning abosszprojeotaing into: said: groova for. loosely supporting said back saddle; block: in: said front saddle block, said projecting boss being of. a size to spring one of said saddle; memberssufiieiently: to: pnrmit. said boss to enter said; groove 2; Ina saddleif'or. top rolls-,a frontzsaddlemems her, a back saddle. member;. said. front. saddle member having downwardly extending-fiangeszto embrace said back saddlemembensaid; fnontsads dle member having bearing: surface means for rockable engagement by sai'd. back saddle. meme her, said flanges: having.- g-rooves therein on the inside. and facing each other, said: back: saddle member" having projecting bosses to. fit. in: said grooves for loosely. holding: said: front and. bank saddle memberstogether:

3. In a saddle for toprolls', afrontsaddle block, a: rear saddle block, said ,front'saddleblock having longitudinally extending. downwardly projecting flanges to embrace said back.- saddle: block,. said frontsaddle block having'a longitudinally extends ing channel extending longitudinally and. centrally thereof and opening at: the bottom of' said front saddle block, said channellbeing: of a sizeato snugly receivea stirrup, said front. saddle member having. holes for receiving azpi'votpin forpivotally supporting a stirrup on: said front saddle member; said front. saddle member having: longitudinally extending bearing surface" meansat opposite. sides of said channel, said back. saddle. block having rounded bearing surface means-for engaging the bearing surface means on saidfrontsaddle; block; whereby said. back saddle block will be. rockabiy supported on. said frontv saddle block, and means for. holding said-saddle blocks'in loosely assembled relationship.

4. In asaddle for top rolls, a front block, a: rear saddle b1ock, said' front-saddleblook: longitudinally extending." downwardly directed flanges to embrace said rear saddle block. said flanges having longitudinally extending grooyes on the inner sides thereof and facing each other; said back saddle block having outwardly directed bosses thereon to fit in: said grooves, saidv grooves being of a substantially greater vertical extent than the vertical extent of said bosses, whereby said saddle blocks mayhavesubstantial vertical movementrelatively to each othensaid bosses-bee ing of an extent to cause theoutwardly springing of said flanges to permit said bosses to enter said grooves.

5. In a saddle for top rolls, a front saddle block having a bearing block at the front end thereof, a rear saddle block having a rear bearing block therein, said front saddle block having a bearing surface on the underside thereof and downwardly extending flanges at the outer sides of said bearing surface, said rear saddle block having a top surface for rockable engagement with said bearing surface on said front saddle block, one of said saddle blocks having longitudinally extending grooves therein, the other of said saddle blocks having bosses to fit within said grooves for loosely holding said bearing blocks together.

6. In a saddle for top rolls, a saddlev block having a front bearing blockcarried thereby at the front end, said saddle block having a deep, longitudinal channel on the underside thereof of a size to snugly embrace the sides of a stirrup whereby the stirrup cannot swing sidewise of said saddle block, said saddle block having a hole for receiving a pin for pivotally supporting a stirrup for longitudinally swinging in said channel, and means for supporting bearing block means for engagement with a rear top roll journal.

7. In a saddle for top rolls, a front saddle block of die-cast material and comprising a unitary one-piece integral block, said block having a recess at the forward end for receiving a bearing block, said saddle block having a longitudinally extending channel central of the underside thereof and of a Width to snugly receive a stirrup, said saddle block having longitudinally extending bearing surfaces at opposite sides of said channel, said saddle block having downwardly extending flanges at the outer sides of said bearing surfaces, said flanges having longitudinally extending grooves on the inner sides and facing each other, a back saddle block fitting between and embraced by said flanges, said back saddle block having bosses projecting therefrom and fitting in said grooves, for the purpose described.

8. In a saddle for top rolls, a front saddle block, a rear saddle block, one of said blocks having longitudinal side flanges to embrace the other block between them, one of said blocks having laterally projecting bosses and the other of said blocks having lateral grooves to receive said bosses to loosely support said blocks one from the other, said coacting bosses and grooves being between said flanges so as to avoid exterior openings or projections to collect lint.

9. In a saddle for top rolls, a front saddle block, a rear saddle block, one of said blocks having longitudinal side flanges to embrace the other block between them, means for loosely supporting said blocks one from the other, comprising interfltting bosses and recesses, said interfitting bosses and recesses being between said flanges so as to avoid exterior openings or projections to collect lint.

10. In the combination defined in claim 9, said interfitting bosses and recesses being of a size to spring into ooacting relation upon a movement of said flanges.

11. In a saddle for top rolls, a front saddle block, a rear saddle block, said front saddle block having depending side flanges embracing said rear saddle block, said rear saddle block having a surface to rockably engage said front saddle block between said flanges, the under side of said front saddle block having a longitudinal groove therein to snugly receive a stirrup, means for pivoting the stirrup in said groove, said rear saddle block having a vertical slot therethrough for the passage of the stirrup pivoted in said groove, and means for loosely supporting said front and rear saddle blocks one from the other.

12. In a saddle for top rolls, a front saddle member, a rear saddle member, said front saddle member having downwardly directed side flanges, said rear saddle member being positioned be tween said side flanges, and in rocking engagement with said front saddle member, said side flanges at the bottom having generally inwardly directed abutments, said rear saddle member having abutment parts extending outwardly beyond the inner sides of said inwardly directed abutments on said flanges, said abutments on said flanges and on said rear saddle member ooacting with each other to hold said saddle members against separation, roll bearing block means on said saddle members, and a stirrup pivotally connected to said front saddle member.

13. In a saddle for top rolls, a front saddle member, a rear saddle member, one of said saddle members having side flanges, the other saddle member being positioned between said side flanges, said side flanges adjacent the edges having generally inwardly directed abutments, said saddle member between said side flanges having abutment means extending outwardly beyond the inner sides of said inwardly directed abutments on said side flanges, said abutments on said two saddle members coacting with each other to hold said saddle members against separation.

14. In the combination defined in claim 13, said front saddle member having a generally rounded top and a deep longitudinally extending channel beneath said top and opening downwardly, a stirrup extending into said channel, means for pivotally mounting said stirrup in said channel; and roll bearing engaging parts on said saddle members.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 394,124 Metcalf Dec. 1838 879,641 I-Ioughton Dec. 18, 1908 1,176,756 Houghton Mar, 28, 1916 1,283,436 West Oct. 29, 1918 1,307,117 CunniiI June 17, 1919 1,416,246 Turck May 16, 1922 1,527,613 Thacher Feb. 24, 1925 2,075,484 'Iruslow Mar. 30, 1937 2,300,444 Ware Nov. 3, 1942 2,359,820 Solanas 0st. 10, 1944 2,496,765 Williams Feb. 7, 1950 2,607,084 Cotchett Aug. 19, 1952 FOREIGN PATENTS Number Country Date 799 Great Britain 1869 203,017 Great Britain Aug. 28, 1923

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