Патент USA US2121137код для вставки
June 21, 1938. (5. WEST 2,121,137 BELT CRADLE FOR ROVINQ AND SPINNING FRAMES Filed March 26, 1937 lll I 2,121,137 Patented June 21, 1938 uN-iTEosTArss eATEN'r QFFWZE 2,121,137 BELT‘ CRADLE FOR ROVING AND“ SPINNING FRAMES George ‘West, Whitinsville, Mass, assignor to Whitin Machine Works, Whitinsville, Mass, a corporation of Massachusetts Application March 26, 1937, Serial'No. 133,228 10 Claims. (Cl. 19-131) This invention’relates to roving and spinning frames in which endless belts and aprons are pro vided for controlling the yarn ?bers and for advancing the ?bers from one pair of driving 5‘ ‘1 rolls to the next. It is the general object of my invention‘ to providev an improved cradle for ‘supporting a pair of ‘endless belts in association with the rolls of a‘roving or spinning frame, and for guiding the lo-iib‘elts in adesired path. A further object is to provide a cradle which may be assembled in operative position without distortion or injury to the belts. With these general objects in View, an important V A stud or screw 30 having an enlarged head 10 3! is slidable in an axial opening in the stud 22 and extends into a recess 33 in said stud‘. A coil spring M is mounted on the stud within the‘ recess 33 and is compressed between an end wall of the 15:5.‘ of feature acradle of my of simpli?ed invention construction ‘relates to the and provision having recess freely and slidable a nut in 35, thethreaded recess. on After the the studnut 3i] and has no loose or removable parts. Another feature relates to the provision of an improved means‘ for guiding the news, by which edge wear of the belts been adjusted by a Suitable tOOl inserted in the recess 33, a cap 36 may be forced into the end of the recess to close said recess, as shown in of the guide bars l5. 20tis My substantially invention eliminated. further relates to arrangements 1 ‘ Fig. The 5. somewhat ‘ simpler stud construction ‘ ‘ shown and combinations of parts which ‘will be here~ inafter described and more particularly pointed‘ in Fig. 8 may be‘ substituted if desired. In'this form, the stud 31 has a straight hole through out in the appended claims. “ which a headed bolt 38 extends. 25;; ‘ A preferred formof the invention is shown in, This nut must be loosened before the cradle parts Fig. 1 is a sectional side‘elevation of my im~ proved cradle, in'association with drawing rolls can be separated. ‘ The, side plates 20 and 2| have o?set flanges" ‘ ‘ “ ' Fis- Zis 2» slde elevation of the cradle; ‘ “ _ 35?‘ _ ‘mg 5 15a" §ect1ona1 plan new’ taken along the 11ne_5~—5}11F1€' 2; p _ - _ _ ‘a Pilgr- 6 1S 3’ slde elevat-lon showmg the Parts m 19051171011?” assembly; _ i ,_ . p 7 1s 3‘ degegl Vlew of? .gulde ém’r’ 31nd _. ‘ .9 ‘ 4o‘j‘to‘bgfiess’cgiilgg are detal vlewso modl?cauon" Referring to the drawing, 1' have shown my improve-d .cradle associated with a set of drawing rolls comprising "a pair of back rolls l0, interme45.73am“? r0115 H and front rolls |2_ i ‘ All and M at their rear‘ end portions, and also indicated at 42 and 43, all for a purpose to be describei Fig- 4 is a plan yiew, looking in the direction of time ELYFOW 4 1n_F1g- 2; - have their middle portions- outwardly oifset as > 30 Fig. 3 is a front elevation, looking in the _direc-‘tion of the arrow 3'i‘n Fig. 2; ‘ i The bolt is se- cured by a nut 39 outside of the side plate 20. 25' the drawing, in which-— ‘and endlesshelts; 301i ‘ with the side plate 20, these parts preferably having reduced end portions headed or spun to secure the stud and bars in the‘plate. The outer end of the stud 22 also has are duced portion 24 which forms a pivotal bearing for the side plate 2|, which plate also has open- 5 ings 26 to receive the reduced and substantially rectangular outer end portions or‘ projections 2'! _ ‘Having described the details of construction of my improved cradle, the manner of application and advantages thereof are as follows:— :35 When the cradle is to be applied in a roving or spinning frame, the parts. are moved around to the position shown in Fig. 6, ‘after which the lower guide-bar 15.15. inserted in the lower belt M, which has previously been mounted on the 40 lower Intermediate r911 H‘ , The upper belt '3 1s, then place‘? over the uppel gulde bar and the 5318 plate 2! ‘5 sw'ung arwnd Uppsr and to the position shown 11‘1F1g.2, in which position 45 lower belts or aprons |3 and M are‘ provided, which belts encircle the intermediate ‘rolls II and at their front or lower ends are positioned by guide bars l5,‘ one of which is shown in Fig. '7. 502 These bars form a part of the cradle to be (16- the proiections 2i snap into theopenmgs 26. The Parts are held in this assembled‘relatio‘n by the spring 34, acting through-the Stud 30 and 155 en larged head 3|‘ It will be understood that the plate 2| assumes 50 the position shown in Fig. 5 only when manually displaced and held from return movement. scribed. ‘ My improved cradle comprises ‘side plates 20 and ‘2|, a cross rod or stud 22, and a pair of the guide-bars l5 previously described. The stud 55‘: 22 and guide-bars I5 are permanently assembled ‘ The upper belt is then inthe dotted line posi tion shown in Fig.’ 1, in which‘ position the upper ‘ intermediate roll it is inserted in the belt. The ‘ 2 2,121,137 belt and roll are then swung downward to the , 3. A cradle for endless belts in a roving or operating position shown in Fig. 1. It is sometimes desirable to vary the distance between the guiding portions of the bars l5, spinning frame comprising a side plate, a cross stud ?xed thereto, a second side plate pivoted on the outer end of said cross stud and having open ings therein, a pair of guide-bars secured in said ?rst side plate and having projecting end por tions insertable in said openings in said second plate, and yielding means to hold said parts nor particularly as the nip of the belts l3 and 14 changes as the belts wear and become more ?ex ible. To permit such adjustment, I may mount one or both of the guide bars as shown at 45 in Fig, 9. The bar 45 has a pivot portion 46 and a 10 threaded portion 41, both located near one edge 'mally in operative relation and to prevent dis assembly of said parts. ' of the bar and loosely ?tting pivot holes in the side plates. A nut 48 retains the adjustment. 4. A cradle for endless belts in a roving or spinning frame comprising a side plate, a cross Instead of mounting both guide bars on the plate 20, I may mount one bar I5a on the plate 15 20 and the other bar l5b on the plate 2|, as shown mounted on the outer end of said cross stud, said in Fig, 10. Reference to Fig. 1 will show that the belts are guided laterally by the end portions 50 of the side plates 20 and 2|, which end portions 50 and having a projecting end portion insertable engage the belts as they pass around the guide bars l5 and while they are approaching but still clear of the rolls ll. Those portions of the belts which are gripped between the rolls are not engaged by the side plates, by reason of the 25 outwardly displaced portions 42 and 43. I thus guide the belts in desired paths by en gagement with those portions of the belts which are approaching the rolls but not yet under pres sure and which may be readily shifted laterally 30 if necessary, while on the other hand no lateral or transverse pressure is applied to those por tions of the belts which are under pressure and which are incapable of yielding transversely. Consequently the belts are easily and accurately guided and there is practically no wear on the edges of the belts, as is the case where the side plates engage those portions of the belts which are under pressure. The ?anges 40 and 4| are provided to limit 40 side travel of the roving R by engagement there with, as indicated in Fig. 1, so that the roving may not traverse so far in either direction as to run off of the edges of the belts. The advantages of my improved cradle will be In the ?rst place, there are no loose parts to be removed and replaced and consequently to be readily lost. In the second 45 readily apparent. place, the straight and unobstructed guide-bars _ l5 are easily inserted within the belts by a simple 50 straight movement, so that no stretching or dis tortion of the belts is occasioned by either as sembly or separation of the parts. Furthermore, the extreme simplicity of the assembled struc ture assists greatly in maintaining the desired cleanliness of the machine. Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:— l. A cradle for endless belts in a roving or 60 spinning frame comprising a side plate, a cross stud ?xed thereto, a second side plate movably stud ?xed thereto, a second side plate movably side plates having‘ openings therein, a pair of guide bars each secured in one of said plates in an opening in the other plate, and means to hold said parts in operative relation, one of said guide bars being angularly adjustable in said 20 side plates and means being provided to preserve the angular adjustment of said bar. 5. A cradle for‘ endless belts in a roving or spinning frame comprising a side plate, a cross stud ?xed thereto, a second side plate pivoted 25 on the outer end of said cross stud and having openings therein, a pair of guide~bars secured in said ?rst side plate and having projecting end portions insertable in said openings in said sec ond plate, and yielding means to hold said parts 30 in operative relation, one of said guide bars be ing angularly adjustable in said side plates and means being provided to preserve the angular adjustment of said bar. 6. A cradle for endless belts in a roving or 85 spinning frame comprising a side plate, a cross stud. ?xed thereto, a second side plate pivoted on the outer end of said cross stud, said plates having openings therein, a pair of guide-bars se cured in one of said side plates and having pro jecting end portions each insertable in said open ings in said side plates, and a spring-operated plunger mounted in said cross stud and effective to hold said parts normally in operative relation. 7. A cradle for endless belts on drawing rolls 45 in a roving or spinning frame comprising a cross rod, a ‘pair ofguide-b-ars, a pair of side plates spaced apart by said rod and bars, and means to hold said parts normally in operative relation, said side plates having portions engaging and 50 transversely guiding the belts at points only where said belts are free from pressure and hav ing all portions adjacent the belts as they ap proach or engage the drawing rolls offset out wardly to clear the edges of said belts. 8. A cradle for endless belts in a roving or spinning frame comprising a cross rod, a pair having portions engaging and transversely guid ing the belts at‘ positions where said belts are approaching the rolls and are free from pressure, pair of guide-bars each secured in one of said and having other portions clearing the edges of the other side plate, and means to hold said parts in operative relation. 2. A cradle for endless belts in a roving or spinning frame comprising a side plate, a cross 70 stud ?xed thereto, a second side plate movably mounted on the outer end of said cross stud, a pair of guide-bars secured in said ?rst side plate and having locating engagement with said sec ond plate‘, and means to hold said parts in oper 75 ative relation. 55 of guide-bars, a pair of side plates spaced apart by said rod and bars, and yielding means to hold said parts in assembled relation, said side plates 60 mounted on the outer end of said cross stud, a 65 side plates and having locating engagement with 10 said belts at positions where the belts are leav 65 ing the rolls and are under pressure. 9. A cradle for endless belts in a roving or spinning frame comprising a ?xed one-piece side plate, a movable one-piece side plate, a cross rod permanently and pivotally connecting said 70 side plates, and two guide bars each ?xed in one of said plates, all of said parts being permanent ly assembled but one of said side plates as a unit being pivotally mounted relative to the other side plate on said cross rod, means to determine the 75 2,121,137 3 normal operative position of said pivoted side plate, and means to hold said pivoted plate in operative position but permitting manual dis placement thereof. bars being angularly movable to selectively vary the spacing between said guide-bars, and means 10. A cradle for endless belts in a‘ roving or spinning frame comprising two side plates, a to maintain a selected spacing of said bars. GEORGEv WEST. pair of belt guide-bars’ spaced apart and. located in and between said‘ side plates, one of said guide CERTIFI GATE OF CORRECTION. Patent No. 2,121,157. June 21, 1958. GEORGE WEST. It is hereby certified that error appears in the above numbered'patent requiring correction es follows: The present sheet of drawing should be canceled and the sheet shown below should be substituted therefor as a part of the Letters Patent June 21,1938. - _ ’ 2,121,137 G. WEST BEIJ'I| CRADLE FOR ROVING AND SPINNING FRAMES ‘ ' Filed March 2s, I\\\\\\\\\\\\\\\\\\\\\\\\ ' I._\'\'E‘\'TUR. 620/‘ e 7962f ' AI'I'UhXLEY. and that the said Letters Patent should be read with this correction there- ‘ in that the same may conform to the record of the case in, the Patent Office. Signed and sealed this 9th day of August, A.'D. 1958.‘ ‘ (Seal) Leslie Frazer Acting Commissioner of Patents.