US1354621A - Driving mechanism for washing-machines - Google Patents

Description

W. MORAN. DRIVING MECHANlSM FOR WASHING MACHINES.

APPLICATION FILED SEPT-9,1918.

l mented Oct. 5, 1920.

2 SHEETS-SHEET l.

.iaii i W. F. MORAN.

DRIVING MECHANISM FOR WASHING MACHINES. APPLICATION FILED SEPT. 9, 1918.

1,354, 21, Patented Oct. 5,1920.

2 SHEETS-SHEET 2.

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UNITED STATES PATENT OFFICE.

WILLIAM F. MORAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO V. B. M. COMPANY, OF

CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

1 DRIVING MECHANISM FOR WASHING-MACHINES.

Application filed September 9, 1918.

To all whom it may concern:

Be it known that I, IVILLIAM F. MORAN, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Drivin Mechanism for lVashing-Machines, of whic the following is a description, reference being had to the accompanying ,drawings,.which form a part of my specification.

My invention relates more particularly to the driving mechanism of a washing machine, which also involves automatic reversing means, whereby the drum or dasher, or other suitable agitating element, is given movement or rotation in a given direction and the direction of rotation'or movement then automatically reversed so as to give the agitating element a predetermined degree of movement or number of revolutions in the opposite direction.

The object of my invention is to provide a construction which may be readily applied to any washing machine and more particularly to the revolving drum or dasher type; the invention contemplating mechanism which will be positive in its operation; a positive intermeshing relation between the power-imparting elements provided by the reversing means; while at the same time providing mechanism which may be easily controlled.

The advantages and operation of my 1mproved mechanism will be thoroughly comprehended from the following detailed description of the accompanying drawings, wherein Figure 1 is a side elevation of my improved mechanism shown applied to a washing machine, only a portion or one end of the latter being illustrated; while the housing or casing of the mechanism and portions of the gear casings are shown in section.

Fig. 2 is a horizontal sectional view, taken on the line 2-2 of Fig. 1 looking in the direction of the arrows. t

Fig. 3 is a vertical-sectional v1ew, taken on the offset line 3-3 of Fig. 1, looking in the direction of the arrows.

Fig. 4 is a detail view, in perspective, with certain portions broken away of the clutch operating element.

Fig. 5 is a detail view, in elevation, of a portion of the mechanism, illustratlng a modification of the reversing means.

Specification of Letters Patent.

Patented Oct. 5, 1920.

Serial No. 253,223.

In the particular eXemplification of the lnventlon, the mechanism is shown applied in Fig. 1 to the outer or water-holding receptacleof a washing machine; the mechanlsm being secured in the usual manner to an end wall of the tub or water-holding portion 10 of the machine which is adapted to be. provided with a suitable drum or dasher, not shown, but which may be of the well known type at present employed.

The invention relates more especially to a power-driven machine, operated, for example, by means of a suitable electric motor shown at 11 in Fig. 1; with the motor shaft 12 extending into a suitable gear casing 13 secured in any suitable manner to the leg or support 14 of the machine. The end of the motor-shaft 12 is provided with suitable gearing, preferably in the nature of a worm, 15, which meshes with the worm-gear not shown secured to the end of a vertically disposed shaft 16. The shaft 16 enters gear casing 17 and is shown provided with a bevel gear, as at 18, which meshes with a bevel gear 19 secured to the end of the drum or dasher drive-shaft 20, which latter is shown horizontally disposed in line with and transversely of a short or stub-shaft 21, whereby the drum' or dasher,a portion whereof is shown at 22 in Fig. 2,-is operated. Thestub-shaft 21 preferably is not integrally connected with the drum or dasher, but has operative connection therewith so as to permit the drum or dasher to be removed from the washing machine when occasion requires.

The stub-shaft 21 has suitable bearing in the boss-portion 23 formed on the rear side of a casing or housing 24; the casing 24 hav ing the front wall or side thereof preferably formed in the nature of a cover 25 removably secured in place so as to permit access to the mechanism within the casing. The casing 24 at diametrically opposite points is provided with boss- formations 26, 26 to receive the ends of the drive-shaft and provide suitable bearings therefor, as shown in Fig. 2.

The drive-shaft, for the purpose of easy assembly of the operating parts, is preferably made in sections, as shown in Fig. 2, the section 20 being shown cylindrical with its inner end preferably slightly reduced section 28. The section 28 is preferably made! square, in cross section, in order to ermit a sliding, driving relation being provided for the elements mounted thereon and later to be described; the outer end of the shaft-section 28 being preferably made cylindrical, as shown in Fig. 2, and having bearing in one of the boss-formations 26 of the casing 24.

The end of the shaft-section 20, within the casing 24, is provided with a bevel gear 29 which is loosely mounted on the shaftsection; and this gear 29 is shown provided with an elongated hub-portion which is preferably formed in the nature of a pinion 30, so that the gear 29 and the pinion 39will be caused to rotate in unison. Of course, it will be understood that the gear and pinion may be separately formed and secured together in any suitable manner s as to induce the rotation of the one with the other.

The bevel gear 29 is arranged in mesh with a circumferential gear 31 secured to the end of the stub-shaft 21 so as to cause rotation of the latter when the mechanism is in operation. The shaft-section 28 is also provided with a bevel gear 32, loosely mounted on the shaft-section; and this bevel gear 32 is in constant mesh with circumferential gear 31 at a point diametrically opposite to that with which bevel gear 29 meshes.

The square shaft-section 28, intermediate of bevel gears 29 and 32, is provided with a double .clutch element 33, shown in the nature of an elongated sleeve, provided at an intermediate point with circumferential flanges or collars 34, which may be formed integral therewith, -or adjustably secured thereto, and arranged in predetermined spaced relation with each other, as shown in Figs. 1 and 2. By securing the circumferential flanges 34, 34 adjustably on the double clutch element 33, the spacedrelation between the flanges may be adjusted, and thereby control the period of operative relation of the respective bevel gears 29 and 32. The clutch element 33 is provided with an opening extending longitudinally therethrough of cross-sectional formation similar to that of shaft-section 28 so as to compel the clutch element 33 to constantly rotate with the composite drive-shaft 20-28. The normal operation of the drive-shaft, through the action of the gearing 19 and 18,

r is in such direction that the operative relation between the two shaft-sections will be maintained.

The inwardly disposed surfaces of the bevel gears 29 and 32 are each provided with clutch-engaging portions or lugs 35 and 36, respectively, adapted to be engaged by suitable sockets 37 and 38, respectively, formed at opposite ends of the clutch element 33, as shown in Figs. 1 and 2; or instead of proriding the clutch element 33 with sockets adapted to receive the lugs 35 and 36, respectively, the ends of the clutch element may be provided with suitable projections or lugs adapted to form interlocking relation with the lugs 35 and 36, respectively, when the clutch element 33 has been shifted from one end of the shaft-section 28 to the other.

\Vith the drive-shaft 20 rotating in the direction of the arrows, in Figs. 1 and 2, and with the clutch mechanism in the position shown in Figs. 1 and 2, it is apparent that power is imparted to the drum or dasher of the washing machine through the medium of bevel gear 32 and circumferential gear 31, thus inducing circumferential gear 31 to rotate in unclockwise direction; while a shifting of the clutch element 33 to the left in Figs. 1 and 2', sufliciently to throw it out of operative engagement with bevel gear 32 and into operative relation with bevel gear 29, will cause power to be imparted from the drive-shaft 20 through the medium'of'bevel gear 29 and thereby induce circumferential gear 31 to rotate in the opposite or clockwise direction.

The casing 24, at a suitable point above the composite drive-shaft 20, is provided with a shaft 39 rotatably mounted in the casing and extending parallel with the composite drive-shaft 20. The shaft 39 is threaded preferably throughout a portion of its length, as shown at 40 in Fig. 1, and is also provided with a gear 41 keyed 'or otherwise positively secured to the shaft. The gear 41 is arranged in constant mesh with pinion 30 secured to bevel gear 29 which is loosely mounted on drive-shaft section 20.

The threaded portion of shaft 39 is provided with a yoke member or shoe 42 shown in detail in Fig. 4; the shoe being provided with a tapped opening through the upper end thereof so as to follow the lead of the threads 40 of shaft 39 when the latter is in operation. The shoe 42 is shown preferably provided with an arcuate socket in the lower end thereof so as to adapt it to straddle the clutch element 33 at a point intermediate of the circumferential flanges or collars 34; the shoe being arranged to slide or move longitudinally of the clutch-element As is evident from this construction, rotation of drive-shaft 20 and therefore of pinion 30, will cause gear 41 to rotate in an opposite direction from pinion 30 and thereby induce shaft 39 to rotate in opposite direction to drive-shaft 20. The screw-threaded relation between shaft 39 and shoe 42 is such that shoe 42 will be caused to move along shaft 39 in a direction away from gear 41 on shaft 39 when gear 29 is imparting power to circumferential gear 31; while the shoe will be caused to move along shaft 39 toward gear 41 when power is being imparted to circumferential gear 31 by means of bevel gear 32. In other words, the shoe 42 is made to travel in a direction opposite to the end of the clutch element 33 which is in engagement with the bevel gear on the drive-shaft. The relation between the shoe 42 and the clutch element 33, that is the distance between the circumferential flanges or collars 34 on the clutch element 33, is such that a number of complete operations or revolutions of circumferential gear 31 will be had before the shoe induces a shift of the clutch element 33; the shifting, of course, being induced when the shoe comes into engagement with either circumferential flange or collar 34 on the clutch element 33.

The shoe 42 is shown provided with a pair of pins or plungers 43 and 44, disposed transversely of and 'slidablymounted in the lower ends of the shoe and normally protruding beyond the sides of the shoe so as to be adapted to engage with the circumferential flanges or collars 34, 34 on the clutch element 33 in advance of the shoe 42. The pin 43 is maintained under pressure by means of a preferably flat spring 45 suitably secured at the point 46 to the shoe; the spring 45 normally tending to maintain the pin 43 in its protruding condition, as shown in Figs. 1 and 4; while the pin 44, which is mounted on the opposite side of the shoe and protrudes through the opposite face thereof, is maintained under yielding pressure by means of a similar and preferably flat spring 47 suitably secured at the point 48 to the shoe. The spring 47 normally maintains pin or plunger 44 in the protruding position on the opposite side of the shoe so as to engage with the flange or collar 34 opposite to that engaged by pin 43.

As is evident from the construction shown and described, the spring of the pin which is in engagement with one of the flanges or collars 34 will be placed under increased tension, due to the flexing of the spring, as the shoe moves toward the flange engaged by said pin; the tension of the springs, however, being insufficient to induce disengagement of the clutch element with the engaged gear or pinion: the positive disengagement being induced by contact of the shoe with the flange toward which the shoe is moving; while the spring actuated pin or plunger will induce a final seating or interlocking relation of the clutch element with the pinion or gear toward which the clutch element has been initially shifted through the action of the shoe 42.

In order that the final or operative positioning of the clutch element may be controlled. in situations where the motive power may have been shut off at a moment when the clutch element is in an intermediate position. namely out of operative engagement with both gears 29 and 32, I prefer that shaft 39 be slidably mounted and yieldingly maintained in its normal position, so as to enable the same to be manually shifted lengthwise and thereby control the position of the yoke or shoe 42 and consequently the operation of the clutch element 33. In Fig. 1, I show one end of shaft 39 extended through the side of the casing 24 and provided with a grasp or thumb-piece 49; the shaft being maintained in normal position, in other words held against accidental longitudinal movement, while the mechanism is in operation, through the action of pins or plungers 43 and 44, respectively. The shaft 39, however, is so mounted as to permit slight longitudinal movement thereof by the operator in the event that a complete co6perative relation between the clutgh and the gears 29 and 32 has not been established under circumstances as above referred to.

In Fig. 5, I show a slight modification wherein the shaft 39 is yieldingly held in normal position by means of suitable springs 51 and 52 arranged at both ends of the shaft; the springs permitting the shaft to be moved longitudinally for a predetermined distance in both directions. The construction shown in Fig. 5 may be employed instead of the spring-actuated plungers or pins carried by the shoe; the springs 51 and 52 being respectively placed under tension after the shoe has been brought into contact with one of the circumferential flanges or collars 34 on the clutch element 33; such contact, in the continued operation of the mechanism. inducing the shaft 39 to shift longitudinally against the action of one of the springs 51 or 52,-namely the spring at the end of the shaft 39 opposite to the direction of movement of the shoe,with the result that when the spring tension has been sufficiently increased, the shaft 39 will be suddenly moved longitudinally through the action of the affected spring and thereby force the clutch element into positive or complete operative engagement with the selective gear loosely mounted on the sectional drive-shaft 20.

The end of stub-shaft 21 extends into a socket member 53 secured to the side of the cylinder or dasher member 22, see Figs. 2 and 3. The end of the shaft 21 merely acts as a trunnion for the cylinder and supports the adjacent side thereof. The stub-shaft 21 is provided with a collar 54. which is keyed or otherwise secured thereto so as to rotate with the shaft. The socket member 53 and the collar 54 are both provided with segmental portions or lugs 55 and 56. respec tively, adapted to extend into the same circumferential plane so as to come into abutting relation when the mechanism is in operation. The lugs..however, are. of such dimensions that more or less rotative moveinent of stub-shaft 21. and therefore also of collar 54, may be had before lug 56 on collar 54 contacts or engages with the lug 55 of socket member 53.

\Vith this construction it is apparent that reverse movement of shaft 21 may be induced through the gear mechanism without necessitating the mechanism and shaft to immediately take up the inertia or impact of the cylinder or dasher. It is evident, that with this construction the cylinder or dasher may come to rest, or rather partially so, before it is picked up by the interlocking of the lugs 55 and 56.

In providing this play between the powerimparting mechanism and the cylinder or dasher, the strains or impacts, which otherwise would be put on the driving mechanism, are materially reduced or substantially eliminated.

I have shown and described what I believe to be the simplest and best constructions embodying my invention, but modifications may be made in certain respects without, however, departing from the spirit of my invention.

WVhat I claim is 1. Mechanism of the class described, comprising a drive-shaft, a pair of gears loosely mounted thereon, a clrcumferential gear with which said gears are in constant mesh, with a gear on each side of the axis of said circumferential gear, a double clutch element slidably mounted on said shaft intermediate of said pair of gears, a screwthreaded shaft rotatably mounted in parallel spaced relation with said drive-shaft, means intermediate of the two shafts Whereby the threaded shaft is caused to rotate alternately in opposite directions, non-rotating means threaded on said screwthreaded shaft and adapted to have operative engagement with said clutch element when said means has moved a predetermined distance in either direction, whereby the clutch element is moved out of clutching engagement with one of said pair of gears,

and means whereby final movement of the clutch element into positive operative relation with the selective gear of said pair of gears is induced.

2. Mechanism of the class described, comprising a drive-shaft, a pair of gears loosely mounted thereon, a circumferential gear with which said pair of gears are in constant mesh on opposite sides of the axis of said circumferential gear, a double clutch element slidably mounted on said shaft intermediate of said pair of gears and adapted to alternately be moved into clutching engagement with each of said pairs of gears, a second shaft rotatably mounted in spaced relation and parallel with said drive-shaft, means intermediate of said second shaft and one of said pair of gears whereby the second shaft is caused to rotate alternately in opposite directions as the direction of rotation of the circumferential gear is altered, means intermediate of said second shaft and the clutch element adapted to alternately move in opposite directions lengthwise of said second shaft when the latter is rotated, said means being arranged to have operative relation with the clutch element after being moved a predetermined distance in either direction, and yielding means whereby said clutch element is forced into positive relation with the -selective one of said pair of gears.

3. Mechanism of the class described, comprising a drive-shaft, a pair of gears loosely mounted thereon at opposite ends of the shaft, a circumferential gear disposed parallel with said drive-shaft and arranged in mesh with said pair of gears, a clutch element slidably mounted on the drive-shaft intermediate of said pair of gears and adapted to alternately provide operative relation between said pair of gears and the drive-shaft, a second shaft rotatably mounted in spaced relation and parallel with the drive-shaft, means intermediate of said second shaft and the circumferential gear whereby the second shaft is rotated alternately in opposite directions as the direction of rotation of said circumferential gear is altered, means adapted to move lengthwise of said second shaft when the latter is rotated and adapted to move into operative relation with the clutch' element whereby the latter is forced out of engagement with one of said palr of gears, and pressure-means carried by said last mentioned means and disposed in the path thereof so as to engage with the clutch element, whereby said clutch element is forced into positive engagement with the opposite gear of said pair of gears.

4. Mechanism of the class described, comprising a drive-shaft, a pair of gears at opposite ends and loosely mounted thereon, a circumferential gear disposed parallel with said drive-shaft and in mesh with said pair of gears, means intermediate of the drive-shaft and said pair of gears whereby both gears are alternately brought into operative relation with said drive-shaft and power imparted to the circumferential gear 115 through the selective gear of said pair of gears, a second shaft rotatably mounted in spaced parallel relation with the driveshaft, means whereby said second shaft is alternately caused to rotatein'opposite di- 120 rections as the direction of rotation of said circumferential gear is altered, means mounted on the second shaft and disposed toward said first mentioned means so as to be held against rotation thereby adapted to 125 move lengthwise of the second shaft and cause said first mentioned means to be moved out of operative relation with one of said pair of gears after said second shaft has been given predetermined rotation, and 130 pressure means intermediate of said third means and said first means whereby the first mentioned means is forced into operative relation with the selective gear of said pair of gears.

5. Mechanism of the class described, comprising a drive-shaft, a pair of gears loosely mounted thereon at opposite ends of the shaft, a circumferential gear arranged in constant mesh with said pair of gears at points on opposite sides of the axis of said circumferential gear, a clutch element slidably mounted on the drive-shaft intermediate of said pair of gears and adapted to alternately establish operative relation between each one of said pair of gears and the drive-shaft, a second shaft, means intermediate of one of the gears of said pair and said second shaft whereby the latter is alternately caused to rotate in opposite directions, amember mounted on said second shaft and disposed toward. said clutch element whereby the latter is controlled, said member being caused to move lengthwise of the second shaft when the latter rotates, the direction of movement of said. member being controlled by the direction of rotation of the second shaft, means operatively connected with the clutch-element whereby the moment of operative relation between said member and the clutch element may be regulated and the clutch element forced out of operative relation with one of said pair of gears, and spring-controlled means intermediate of said member and said last mentioned means whereby the clutch element is forced into operative engagement with the other gear of said pair of gears.

6. Mechanism of the class described, comprising a sectional drive-shaft, a gear and a pinion loosely mounted on one section of said sectional drive-shaft, a gear loosely mounted on a second section of said sectional drive-shaft, said last mentioned section having a portion, formed angular in cross section, disposed intermediate of the two gears, a clutch element slidably mounted onthe angularly formed portion of said shaft-section intermediate of the two gears and adapted to alternately establish operative relation between the drive-shaft and said gears, a circumferential gear arranged in mesh with both of said gears, a screw-shaft rotatably mounted in spaced relation with the drive-shaft, a pinion secured to said screw shaft and arranged in mesh with the pinion on said drive-shaft whereby said screw-shaft is alternately caused to rotate in opposite directions as the direction of rotation of the circumferential gear is altered, a shoe threaded on the screw-shaft so as to move lengthwise thereof when the latter is rotated, said shoe being held against rotation and in sliding relation with said clutch element, means intermediate of the shoe and the clutch element whereby the latter is forced out of operative engagement with one of said pair of gears after the shoe has moved a predetermineddistance lengthwise of the screw-shaft, and pressure-means carried by said shoe and adapted to induce positive relation between the clutch element and the selective gear of said pair of gears.

7. Mechanism of the class described, comprising a drive-shaft, a pair of gears loosely mounted on said shaft, in separated relation, a circumferential gear disposed parallel with the drive-shaft and arranged in mesh with both gears, the circumferential gear being adapted to have power transmitted thereto by the selective gear on the driveshaft, rotatable means disposed parallel with the drive-shaft, means intermediate of said means and one of the gears on the drive-shaft whereby said first mentioned means is alternately rotated in opposite directions as the rotation of the circumferential gear is altered, a clutch element slidably mounted on the drive-shaft intermediate of the first mentioned gears whereby operative relation between the drive-shaft and said gears is provided, means intermediate of the first mentioned means and said clutch element whereby the latter is moved out of clutching engagement with the gears on the driveshaft, and spring-controlled means whereby the clutch element is forced into clutching engagement with the selective gear on the drive-shaft.

8. Mechanism of the class described, comprising a drive-shaft, a pair of gears loosely mounted thereon, a clutch element slidably mounted on the drive-shaft intermediate of the gears and arranged to effect operative relation between the drive-shaft and said gears, a circumferential gear disposed parallel with the drive-shaft and meshing with the first mentioned gears at points on opposite sides of the axis of the circumferential gear, a second shaft rotatably mounted and disposed parallel with the first shaft, means intermediate of the second shaft and one of the first mentioned gears whereby the second shaft is rotated in directions opposite to the directions of rotation of said gear, said second shaft being adapted to have predetermined longitudinal movement, means mounted on the second shaft and in sliding relation with the clutch element and adapted to travel lengthwise of the second shaft when the latter rotates, said means being adapted to shift the clutch element out of clutching engagement with the gears on the drive-shaft, and spring-controlled. plungers carried by said last mentioned means and adapted to have engagement with the clutch element in advance of said means, said spring-controlled plungers being adapted to shift the clutch element into clutching engagement with the selective gear on the drive-shaft after disengagement of the clutch element with one of the first gears has been effected.

9. Mechanism of the class described, comprising a drive-shaft, a pair of gears loosely mounted on the drive-shaft, a circumferential gear disposed parallel with the driveshaft and arranged in constant mesh with said gears at points on opposite sides of the axis of the circumferential gear, a clutch element slidably mounted on the drive-shaft intermediate of the two gears loosely mounted thereon, adapted to provide operative relation between the drive-shaft and the selective gear of said loosely mounted gears, a screw-shaft disposed parallel with the drive-shaft, means intermediate of the screw-shaft and one of the gears on the spring pressure so as to force the clutch element into clutching engagement with the selective gear on the drive-shaft after the shoe has forced said clutching element out of clutching engagement with one of the gears on the drive-shaft.

10. Mechanism of the class described, comprising a sectional drive-shaft, the two sections being operatively connected together, a gear loosely mounted on each section of the drive-shaft, the one section being formed angular in cross-section at a point intermediate of the two gears, a clutch sleeve provided with an opening therethrough of cross-sectional configuration similar to that of the angular formation of the drive-shaft section so as to permit said clutch sleeve to slide lengthwise of the shaft and be forced to rotate therewith, said clutch sleeve being adapted to alternately provide operative relation between the driveshaft and the gears loosely mounted thereon, a circumferential gear disposed parallel with the drive shaft and arranged in mesh with the gears loosely mounted thereon, a screw-shaft disposed parallel with the drive-shaft and arranged to have longitudinal movementto a predetermined extent, a shoe threaded on said screw-shaft and arranged in sliding relation with said clutch sleeve, said shoe being adapted to shift said clutch sleeve after the shoe has traveled a predetermined distance lengthwise of the screw-shaft, and means intermediate of said screw-shaft and one of the gears loosely mounted on the drive-shaft whereby the screw-shaft is given rotation in opposite directions.

11. Mechanism of the class described, comprising a drive-shaft, a pair of gears loosely mounted thereon, a clutch sleeve slidably mounted on the drive-shaft intermediate of said gears, adapted to effect operative relation between the drive-shaft and the selective gear of said pair of gears, a second shaft rotatably mounted parallel with the drive-shaft, means intermediate of one of the loosely mounted gears and the second shaft whereby the latter is alternately rotated in opposite directions, a shoe arranged on the second shaft and adapted to alternately travel in op osite directions lengthwise of the second shaft as the latter rotates, adjustable means intermediate ofthe shoe and the clutch sleeve whereby the moment of operative relation between the shoe and clutch sleeve may be controlled, said shoe being adapted to shift the sleeve out of clutching engagement with the gear on the drive-shaft, and pressure means whereby'the clutch sleeve is forced into clutching engagement with the selective gear on the drive-shaft. v

12. Mechanism of the class described, comprising a drive-shaft, a pair of gears loosely mounted thereon, a stub-shaft disposed at right angles to said drive-shaft and adapted to act as a supporting trunnion for one side of the cylinder of the machine, a circular gear on said stub-shaft arranged in mesh with the gears on the drive-shaft, means controlled through the rotation of the driveshaft whereby the selective gear of the first mentioned gears is placed inoperative relation with the drive-shaft, and means intermediate of the stub-shaft and the cylinder whereby rotativemovement of the stubshaft is transmitted to the cylinder, said means comprising a pair of elements adapted to interlock with eachother, one of said elementsbeing secured to the cylinder while the other is secured to said stub-shaft whereby lost motion between the stub-shaft and the cylinder to a predetermined extent is permitted before taking up the inertia of the cylinder. 4

18. Mechanism of'the class described, comprising a drive-shaft, a pair of gears loosely mounted thereon, a stub-shaft adapted to loosely support one side of the cylinder of the machine, a circular gear on the stubshaft arranged in mesh with the gears on the drive-shaft, means whereby the loosely mounted gears are alternately brought into operative engagement with the drive-shaft, and means intermediate of the stub-shaft and the cylinder whereby rotative movement lot of the stub-shaft is transmitted to the cylnder, said latter means comprising oppositely disposed portions adapted to extend into the same circumferential plane and interlock witheach other at predetermined moments in the rotation of the stub-shaft, whereby slight reverse movement of the stub-shaft is permitted before picking up the inertia of the cylinder.

14. Mechanism of the class described, comprising a drive-shaft,- a pair of gears loosely mounted thereon, a stub-shaft, a circular gear on the stub-shaft arranged in mesh with the gears on the drive-shaft, means whereby the loosely mounted gears are alternately brought into operative engagement with the drive-shaft, a socket-member adapted to be secured to the cylinder and adapted to receive the end of the stub-shaft, said member being provided with an extension or lug, and a collar secured to the stub-shaft so as to rotate therewith and provided with an extension or lug adapted to extend into the path of the extension or lug on the socket-member whereby independent movement of the stub-shaft and the cylinder to a predetermined extent may be permitted.

WILLIAM F. MORAN.

Witnesses F. A. FLoRELL, G. IIEIDMAN.

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