US2096339A - Variable speed spinning frame drive - Google Patents

Description

'4 Oct. 19, 1937. P. B. REEvEs I VARIABLE SPEED SPINNING FRAME DRIVE CONTROL 2 sheets shee Filed Oct. 29. 1956 ATTORNEYS Oct. 19, 1937. P. B. REEVES VARIABLE SPEED SPINNI NG FRAME DRIVE CONTROL Fi led Oct. 29, 1936 2 Sheets-Sheet 2 1 1N VENTOR., feet a \W 3% 762. QTTORNEYJ. I

Patented Oct. 19, 1937 2 UNITED STATES PATENT OFFICE Paul B. Reeges, Columbus,

Ind., assignor to Reeves Pulley Company, Columbus, Ind. a corporationof Indiana Application October 29, 1936, Serial No. 108,162

, 9 Claims.

The present application relates to variable speed drive controls for spinning frames, and the like; and the primary object of the invention is to improve controls of that general character in minor details. Particularly, the present invention has for its primary object to rearrange the elements of control mechanisms of the above general character for the purpose of reducing the floor space required to accommodate such a control. A

further object of the invention is'to simplify the various driving and whereby the efliciency of the organization as a whole is somewhat improved. Further objects w of the invention will appear as the description proceeds.

To the accomplishment of the above and related objects, my, invention may be embodied in the form illustrated in the accompanying drawings, attention being called to the fact, however,

that the drawings are illustrative only, and that change may be made in the specific construction illustrated and described, so long as the scope of the appended claims is not violated.

Fig.1 is a perspective view of one end of a conventional spinning frame, with which is operatively associated my improved drive and control;

Fig.2 is a fragmental view, showing the drive connections between the spinning frame and the control;

Fig. 3 is an end elevation, upon an enlarged scale, of parts of the organization, certain parts being broken away for clarity of illustration;

Fig. 4 is a fragmentary end view of the organization illustrated in Fig. 3;

Fig. 5 is a fragmentary sectional plan of certain elements of the control;

Fig. 6 is a plan view of the control per se, parts being broken away for clarity of illustration; and Fig. '7 is a transverse section taken substantially on the line 1--1 of Fig. 6, and looking in the direction of the arrows.

Referring more particularly to the drawings,

' it will be seen that I have illustrated a portion of a conventional spinning frame. It, including the usual ring rail ll driven,'as usual, from the oscillating shaft l2. As is clearly shown in Fig. 2, said shaft l2 carries an arm 13 which is connected, by a link I4, with an arm 15 which, as will appear from the following description, operates, upon oscillation, to drive the elements of the control to vary'the speed at which the spinning frame is driven.

The entire control, of the present application is assembled upon a table It which is securedtothe end frame, ll of the driven machine, and

controlling connections, I ,drive the main shaft of such frame l0.

pansible V-pulley.

which is further supported by legs l8. A standard l9 supported upon the table provides a support and bearing for one end of the input shaft 20 of a variable speed transmission. The other end of said shaft is suitably supported and jour- 5 naled in a bearing (not shown). Asecond standard 2| provides a bearing for one end of the output shaft 22 of the transmission. Said shaft 22 may be themain shaft of the spinning frame H), or it may be connected, in a suitable manner, to The transmission is preferably housed in a housing 23 of suitable characteristics.

Splined upon the shaft 20 is a coned,disc 24; and a second coned disc 25 is fixedly mounted on 15 said shaft 20 in facing relation to the disc 24, as is clearly shown in Fig. 4. It will be obvious that, as the disc 24 is shiftable axially of the shaft 20, said discs 24 and 25 cooperate to form anex- Fixed on the shaft 22 is a 20 coned disc 26 which'cooperates with a similar coned disc (not shown) splined on the shaft 22 and resiliently urged, toward the disc 26, to form a resiliently expansible V-pulley. An edge-active V-belt 21 provides a driving connection between 25 the pulley formed by the discs 24 and 25 and the pulley formed by the disc 26 and its mate; whereby the shaft 22 is driven from the shaft 20, and whereby the speed of the shaft 22 may be varied by axial shifting of the disc 24 along the shaft 20. 0

If desired, either or both of the shiftable discs may be splined upon a projected hub of its associated fixed disc.

Suitably mounted upon the housing 23 is a shaft 28 which provides a pivotal mounting for a 3d motor platform 29 which is formed with slideways 30. A motor 3| is adjustably mounted in the slideways 3D; and the platform may be adjusted, about the axis of the shaft 28, to move the motor 3| toward or away from the shaft 20, by means of the screw 32. A suitable sheave 33 is carried on the motor spindle 34; and a suitable sheave 35 is carried on the shaft 20, whereby the'motor 3i drives the shaft 20 through a connecting belt, as shown.

A yoke 36 is connected, through a suitable thrust bearing means which forms no part of the present invention, to the disc 24; whereby said disc 24 may be positively shifted in either direcr tion axially of the shaft 20 by corresponding movement of the yoke 36. Pivotally connected to the yoke 36 at diametrically opposite points 31 are two straps 38 which, at the points 39, are

' pivotally connected intermediate their ends with links 40, pivoted at 4| on the standard 9. The

lower ends of the straps 38 are bifurcated, as is clearly shown in Fig. 4, to straddle the op posite ends ries a beveled gar 52 meshing with a second beveled gear 53 carried on a shaft 54 which like wise projects into the box 5|.

Secured to, and carried by, -the table I6 is a casing indicated generally at 55 and comprising a bottom 56, upwardly projecting side walls 51 and 58, and upwardly projecting end walls 59 and 60. The end wall 60 is cut away, as: at GI, and thereis provided a closure 62 suitably secured in place to cover the the wall 60.

As is clearly to be seen in 'Figs. 3 7 arm l5 merges into a hub 63 which is loosely mounted on the shaft 54, and which is provided spring 1| with the arm 69 of the pawl 68; and said ratchet face with crown the pressure plate 8|; 7

83 fixed on the shaft 54. 54

That end of the shaft adjacent the closure plate 62 is threaded, as 84.

A rod 85 longitudinally spaced along said rod, andadcutaway portion of and 6, the

ment with the pressure plate 8|.

Ledges I M and H12 project inwardly from the side walls 51 and 58 of the casing 55 and sup port the opposite ends of a segment 103 which is formed with an arcuate slideway I04 in which a finger I09 for cooperation with the latch "18,

cooperation with the pro- A cover I is provided for the and a finger I III for jection l06. casing 55.

The operation from the above of the organization will be clear description, but may be briefly is energized, it

viewed in Fig. 7. '\Both of the clutch discs .15 and being. engaged with wheels 16 and 11, such movement of the ratchet wheel 11 will be transmitted through the clutch element 18 to the shaft 54. So long as these conditions remain constant, the ratchet wheel 76 will likewise be driven in a clockwise direction, through the clutch element 12.

Clockwise rotation therespective ratchet strike the latch I08, I intoengagement with the ratchet wheel 16;

, actuated by rotation tion to disengage said first clutch means, means oscillation of said arm to toward the right, as viewed in Fig. 6, will cause the element 96 to force the clutch element 18 toward the right, as viewed in Fig. 6, against the pressure of the spring 82, to disengage the clutch disc 80 from the ratchet 11.

At some time thereafter, the finger I09 will to throw the pawl arm whereafter, oscillation of the element 61 will resultin counterclockwise rotation of the ratchet wheel. 16. That rotation will be transmitted, through the clutch element 12, to the shaft 54; whereby the nut 9| will be moved gradually toward the left, thus permitting the clutch disc 80 again to engage the ratchet wheel 11. Such rotation will also cause clockwise rotation of the shaft 44, as viewed in Fig. 3, to move the nut 43 upwardly, as viewed in Fig. 5; thereby moving the disc 24 away from the disc 25 to reduce the speed of the shaft 22. After a predetermined period of operation, the ends'92 and 93 of the nut 91 will engage and move the stop collars 86 and 89 to disengage the clutch disc from the ratchet wheel 16.

I claim as my invention 1. A control for a variable speed transmission having an element shiftable in opposite directions to vary oppositely the speed differential effected by said transmission, comprising an oscillating arm driven by said transmission about a substantially horizontal axis, a double-ended pawl carried on said arm, a substantially horizontal shaft coaxial with said arm, a first ratchet loosely mounted on said shaft and having teeth engageable by one end of said pawl, clutch means resiliently urged to clutch said first ratchet to said shaft, a second ratchet loosely mounted on said shaft and having teeth engag'eable by the other end of saidpawl, the teeth of said second ratchet being oppositely pitched with respect to the teeth of said first ratchet, clutch means resiliently urged to clutch said second ratchetto said shaft, means connecting said shaft to drive said shiftable element in either direction, means of said shaft in one direcactuated by continued shift said pawl out of engagement with said first ratchet and into engagement with said second ratchet, and means actuated by rotation of said shaft in the opposite direction to disengage said second clutch means.

2. In a device of the class described for use in driving a machine at variable speeds, a table, a variable speed transmission supported upon said table and comprising an input shaft, an output shaft, means providing a driving connection between said shafts, and an element shift- ,able in opposite directions to vary oppositely the speed differential between said shafts, a casing supported on said'table, a horizontal shaft perpendicular tothe vertical axial planes of said transmission shafts and operatively connected to shiftsaid shiftable element, a portion of said shaft being journaled within said casing, two

oppositely-pitched"ratchets loosely mounted on said shaft within said casing, an arm mounted for oscillationabout the axis of said 'shaft within said casing and carrying a double-ended pawl adapted for alternative cooperation with said respective ratchets, two clutch elements slidably mounted on said shaft within said casing and spring pressed toward engagement with said respective ratchets, an element cooperable with both of said clutch members and adapted, upon movement to a predetermined degree in one direction, to disengage one of said clutch members, and, upon movement to a predetermined degree in the opposite direction, to disengage the other of said clutcnmembers, a portion of said shaft within said casing being threaded, a member 'threadedly mounted on said threaded shaft portion and having a lost-motion two-way connection with said last-mentioned element, means for driving said transmission input shaft, said transmission output shaft being connected to drive such machine, and means connecting said machineto transmit an oscillating movement to said m. 3. In a device of the class described for use in driving a machine at variable speeds, a table, a variable speed transmission supported upon said table and comprising an input shaft, an output shaft, means providing a driving connection between said shafts, and an element shiftable in opposite directions to vary oppositely the speed differential between said shafts, a casing supported on said table, a horizontal shaft perpendicular to the vertical axial-planes of said transmission shafts and operatively connected to shift said shiftable element, a portion of said shaft being journaled within said casing, two oppositely-pitched ratchets loosely mounted on said,

shaft within said casing, an arm mounted for oscillation about the axis of said shaft within said casing and carrying 'a double-ended pawl adapted for alternative cooperation with said respective ratchets, two clutch elements fast on said shaft within said casing and spring pressed toward engagement with said respective ratchets, an element cooperable with both, of said cl'utch members and adapted upon movement to a predetermined degree in one direction, to disengage one of said clutch members, and, upon movement to a predetermined degree in the opposite direction, to disengage the other of said clutch members, a portion of said shaft within said casing being threaded, a member threadedly mounted on said threaded shaft portion and connected to move said last-mentioned element, means for driving said transmission input shaft, said transmission output shaft being connected to drive such machine, and means connecting said machine to transmit an oscillating movement to said I arm.

'4. Control mechanism for a variable speed transmission having an element shiftable oppositely to vary the output speed thereof, comprising a casing, a shaft journalled on said casing and projecting therefrom, said shaft being operatively connected to shift said element oppositely upon rotation of said shaft in opposite directions, two oppositely pitched ratchets loosely mounted on said shaft within said casing, two clutch members keyed on said shaft and resiliently u rged toward engagement with said respective ratchets, a double-ended pawl within said casing for oscillation about the axis of said shaft, and selectively operatively engageable with said respective ratchets, means driven by said transmission for oscillating said pawl, a member having lost-motion connection with both of said clutch members, a portion of said shaft within said casing being threaded, and means threadedly associated with said threaded shaft portion and operable, upon rotation of said shaft in one direction to a predetermined degree, to shift said last-mentioned member to disengage one of said clutch members, and, upon rotation of said shaft in the op te direction to a premounted a second toothed member loosely determined degree, to shift said last-mentioned member to disengage the other of said clutch members. 7

5. A control for a shiftable member, comprising a. casing, a shaft joumaled in said casing and projecting therefrom, a, portion of said shaft within said casing being threaded, a collar fixed on said shaft adjacent one end of said casing, a spring sleeved on said shaft and bearing against said collar, a, clutch member keyed on said shaft and comprising a hub, a pressure plate adjacent and bearing against said two clutch members between the clutch discs and pressure plates thereof, two rods secured to said yoke at one end and slidably mounted in a wall of said casing adjacent the opposite end, two collars fixed to each'of said rods in longitudinally spaced relation, a nut threadedly mounted on the threaded portion of said shaft and having arms respectively slidably mounted on said two rods between said stop collars, and means selectively engageablewith said respective toothed members for rotating the same.

6. A control for a shiftable member, comprising a casing having a bottom, upstanding side and end walls, and a cover, one of said end walls being cut away, a closure element for closing the cut-away portion of said one end wall, a shaft journaled in the solid end wall and projecting outwardly therefrom; said closure element being formed to provide a bearing for one end of said shaft, said shaft being threaded adjacent said one end, a collar sleeved on said shaft and fixed thereto adjacent the solid end wall of said casing, a spring sleeved on said shaft and bearing against said collar, a clutch member keyed on said shaft and comprising a hub, a pressure plate adjacent one end of said hub and bearing against said spring, and a clutch disc longitudinally spaced from said pressure plate, a toothed member loosely mounted on said shaft and formed for clutching cooperation with said clutch disc,

mounted on said shaft adjacent said first toothed member, a second clutch member keyed on said shaft and comprising a clutch disc, a hub, and a pressure platelongitudinally spaced from said last-named clutch disc, said last-named clutch disc and said second toothed member being formed for mutual clutching cooperation,-a second spring sleeved on said shaft and bearing against saidv last-- a second collar fixed to 0nd spring, a yoke member comprising spaced side elements and spaced end elements integrally united into asubstantially rectangular frame,

an abutment for said secaooasea pressure plates and clutch discs of said respective clutch members of said yoke member adjacent the cut-away end wall of said casing, two collars fixed to each of said rods in longitudinally spaced relation, a nut engageable withv sa' bers for rotating the same. j

I 8. A control forashiftable member, comprising a casing, a shaft journaled in said casing and projecting therefrom, a portion of said shaft" within said casing being threaded, a collar fixed shaft and bearing on said shaft adjacent one end of said casing, a spring sleeved on said shaft and bearing against said collar, a clutch member keyed and comprising a hub, a pressure plate adjacent one end of said hub and bearing against said spring, and a clutch disc longitudinally spaced from said pressure plate, a toothed member loosely mounted on said ing cooperation with said clutch toothed member loosely mounted on said shaft adjacent said second clutch member keyed on said shaft and comprising a clutch disc, a hub, and a pressure plate longitudinally spaced from said last-named clutch disc, said last-named clutch disc and said second toothed member being formed for mutual clutching cooperation, a second spring sleeved on said against said last-named pressure plate, a second collar fixed to said shaft and forming an abutment for said second spring, a solid yoke member seating on the two clutch members between the clutch discs and pressure plates thereof, two rods secured to said yoke at one end and slidably mounted in a wall of said casing adjacent the opposite end, two collars fixed to each of said rods in longitudinally spaced relation, a nut threadedly mounted on the threaded portion of. said shaft and having arms respectively slidably mounted on said two rods between said stop collars, a double-ended pawl cscillable within saidcasing about the axis of said shaft and selectively engageable with said respective toothed members, means in said casing automatically cooperable with said pawl at times to disc, a second vary its cooperative relation with said toothed members, and means for oscillating said pawl.

9. A control for a shiftable member, comprising a casing having a bottom, upstanding side and end walls, and a cover, one of said end walls being cut away, a closure element for closing the-cutaway portion of said one end wall, a shaft journaled in the solid end wall and projecting outwardly therefrom, formed to provide a bearing for one end of said on said shaft shaft and formed for clutchthreadedly mounted on and having arms respectively said closure element being shaft, said shaft being threaded adjacent said one end, a collar sleeved on said shaft and fixed thereto adjacent the solid end wall of said casing, a spring sleeved on said shaft and bearing against said collar, a clutch member keyed on said shaft and comprising a hub, a pressure plate adjacent one end of said hub and bearing against said spring, and a clutch disc longitudinally spaced from said pressure plate, a toothed member loosely mounted on said shaft and formed for clutching cooperation with said clutch disc, a second toothed member loosely mounted on said shaft adjacent said first toothed member, a secand clutch member keyed on said shaft and comprising a clutch disc, a hub, and a pressure plate, longitudinally spaced from said last-named clutch disc, said last-named clutch disc and said second toothed member being formed for mutual clutching cooperation, a second spring sleeved on said shaft and bearing against said last-named pressure plate, a second collar fixed to said shaft and forming an abutment for said second spring, a solid yoke member seating on the hubs of said two clutch members between the clutch discs and pressure plates yoke at one end and slidably mounted in said closure member, two collars fixed to each of said rods in longitudinally spaced relation, a nut the threaded portion of said sha'ft slidably mounted on said two rods between said stop collars, a double-ended lable within said casing about said shaft and, selectively engageable with said respective toothed members, a segment mounted in said casing and secured to the opposite side walls thereof, at least one stop mounted on said segment and adjustable therealong, said step bethereof, two rods secured to said ing disposed in the path of said pawl to vary, upon engagement therewith, its cooperative relation with said toothed members, and means for oscillating said pawl.

PAUL B. REEVES.

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