US932558A - Clutch. - Google Patents

Description

v H. a. LA BATT.

v GLUTGH. APPLICATION FILED JAN. 26, 1903. RENEWED JAN.14, 1909.

932,558. Patented Aug. 31, 1909.

H. G. LA BATT.

CLUTCH. APPLICATION FILED JAN. 26, 1903; RENEWED JAN. 14, 1909.

- Patented Aug. 31, 1909.

3 SHEETS-SHEET 2.

H. 0. LA BATT.

CLUTCH. APPLICATION FILED JAN. 26. 1903. mmnwnn JAN. 14, 1909.

Patented Aug. 31, 1909.

3 SHEETS SHEET 3.

' the disclosure,

' STATES PATENT orrron.

noun 0. 11A IBA'IT, or (.HIGAGQ'IIJIQINOIS, ASSIGN'OR 'ro WILLIAM .1. nnn'mcx, or cmcae rumors.

' 'enu'rcrr.

Specification of Letters' Patent.

Patented Au 31, 1909.

.Originalapplication filed July 1Q, 1902, Serial No. 115,014. Divided and this application filed January 26, 1903,"Seria1 N 0. 140,530; Renewed January 14, 1909. Serial No. 472,295.

To all whom 'ttmwy concern." 1

Be it known that I, HoMnR O.-LA BA'rT, a citizen of the Unit-ediStates, residing at Chicago, inthe county of Cook'and State of Illinois,-have-invented certain new and usefnl Improvements in Clutches, of which the following is a specification.

My invention relates to clutchesgand its object is to provide certain improvements in this class of devices as will be apparentfrom and which will be pointed out in the appended claims.

In order that the various features of my inventionmay be fully and clearly disclosed, I have shown myimprovedform of clutch in connection with certain parts of a paper- 'feeding machine, which will illustrate an application thereof in practical use.

In the accompanying drawings, in which the same characters offreferenc e refer to the same parts in the several views-Figure l is a detail front elevation of a portion of a sheet-feeding machine showing an applica-;

tion of my improved clutch thereto, the driving disk of the clutchnot being shown for convenience of illustration; Fig. 2 is a side View of the parts ofjFig. 1; Fig. 3 is a view partly in elevation and partly in section a ong the line of the shaft upon. which the clutch elements are mounted and with the latch or controller shown to illustrate its relative location; Fig. 4, isa part sectional view'taken on the line l5 of Fig. 3 in looking in the direction of the top arrow; Fig. 51s a view similar to Fig. 4, but taken 1n the d1rect1on of the lower arrow on the line i-5 of Fig. 3 Fig 6 is a detail view of the trigger or catch; Fig. 7 isa detailview of the pm by which theparts of the clutch are connected; Fig. 8 is a, detail view of the head of the latch or controller; Fig. 9 is a view similar to Fig. 3, but. showing a modified form of latch-controlling mechanism that may be employed; and Fig; 10 is a. part sectional view taken on the line 10 l0 of Fig. 9 and looking in the direction of the arrow therein.

frame A is 'of any suitable construction, and which is provided wlth a suitable throughshaft A from which the elements of, the.

connections; for example, the

upon the end of the shaft.

ous elements of its associated machine in any suitable manner and through an suitable Feeding-off rolls a a, are driven by an intermediate train of gears a f The, clutch comprises a driven disk B, which is suitably secured to the shaft by a key b,.and a driving disk C, which is suit-- ably mounted in operative relation to the dlSkfB, as by being rotatably carried on. a projection of the shaft. A, beingheld against displacement by a collar 1;, which is threaded It of course understood that the driving disk, may be mounted in operative position with relation to the associated disk by any suitable arrangement of parts, as upon an independent away or recessed at any suitable point in its face to form a. seat 1) having one wall abrupt for its full depth, as at I), and the other wall I) abrupt for a portion only of its depth and then developing into an incline which merges with the face-or top portion of the flan e.

The drivlng member C is preferably in the form of a sleeve, and is provided on its operative face with an axially extending recess 0 in which a pin 0" is inovably seated. The pin is provided withJa pocket 0 in its rear end, which receives a. protracting spring 0", bearing between the base of the pocket and recess to throw the pin outwardly toward the driven disk B, the pin a and the flange I) being on the same diameter and in line when the parts are assembled. The pin is provided on its outer face with a stop or ledge c. which fits in a corresponding cutaway ofthe recess and prevents it from turnupwardly extending pin 0 about which the spring is coiled, and adapted to move in an undercut way or guide a in the casting, and having an opening or slot on its exposed face. The catch is provided with a lug 0 on its lower edge, having an inclined or beveled face 0", and with a lateral front shoulder 0", which projects throu h the opening of the'guide into the plane 0 the flange I) The latch or controller D is located between the flange b and'the shoulder 0 andmoves toward and away from the shaft of the clutch to latch and unlatch the coacting pin 0 The latch is curved to conform more or less to the curvature of the Y flange b, and is provided with an eccentric face or radial cam d on its upper surface, and with a lateral or axial cam d in the line of projection of the shoulder 0 of the pin 0 The latch may be arranged in any suit able manner and operated by any suitable means. Its movements are inward and outward with relation to the shaft, and it norinally occupies an intermediate inoperative position between the flange b and the shoulder 0 and out of the path of movement of both of these elements.

The positions of the controller may be governed by any suitable means, such for example as a manually operated handle 40 adapted to suitably control its movements, or the latch may be balanced in its inoperative position and be moved by any suitable means which automatically restores it to normal or balanced position. In the form shown in Figs. 9 and 10, a rockshaft H is carried in suitable bearings on the frame and is provided with an arm h projecting into the planeof the latch D, and which is suitably .connected to the movable stem 71, of the latch,

which is supported by brackets k and h on the frame. The stem carries an adjustable collar 71; between the brackets and havin a set-screw to lock it in position. Two coil-springs h and h are provided on the stem between the collar and brackets, which balance the'stem and its attached latch in normal central position and return them to such position when moved in either direction, its movement being limited by suitable stoppins 71,. It is obvious that the rock-shaft may be operated by any suitable means.

In the prefer-red form of the device, the stem (1 of the controller or latch is pivoted to the frame at any suitable point, as at (i and is connected to a suit-ably guided actuating rod d by any suitable means; I prefer to connect these parts by means of a pin d on the rod engaging a cam slot (1 on the latch, the slot being tangential to the pivot ofthe latch and extending upon either side to the frame at any suitable point, as at d, When the pin is moved up or down it throws the latch in or out respectively. The slot is provided with angular ends a! in which the pin rests at its extremes of movements, and which co-act with the pin to lock the latch against movement on its pivot when the parts of the clutch strike against it. The latch is held in its normal inoperative position by the pin d normally standing at the center of the tangential slot, and the latch may be returned to this position by any suitable means for example, the movement of the rod d 1n one direction by gravity will restore it from one extreme of its p a and a spring (i may be employed to return it fromthe ther extreme, as by employing a collar d between which and a suitable abutment, such as a portion of the frame, the spring is held. The collar may have a set screw, whereby its position on the rod may be adjusted when desired. This arrangement provides for balancing the latch or controller in its normal inoperative position, and for automatically returning it thereto from either direction.

With the parts in the positions of Figs. 2, 3 and 9, the members of the clutch are disengaged, and as the sleeve C revolves the projection or shoulder 0 does not contact with the latch. If now the latch be moved outwardly or away from the shaft, it will project the eccentric face d, on its outer surfaceor edge, into the path of the shoulder 0 whereby the catch or trigger c from engagement with the recess a, and the pin a will be projected by its 5 rin against the flange b of thedisk and as t e sleeve C revolves in the direction of the arrows a: the pin will pass down the incline 6 into the. seat 12 to lock the sleeve and disk together and impart motion to the shaft A. The latch is then returned to its normal position, and the parts of the clutch revolve together. When it is desired to open'the clutch,-the

latch is moved inwardly toward the shaft,

whereby the lateral cam d on the face or side of the latch is thrown into the path of the angular shoulder a of the pin 0 whereby the pinwill be retracted into its recess and the lug 0 on the trigger or catch will engage the channel 0 thereby holding the pin in its retracted position and the parts of the clutch disconnected. The latch is then re turned to its normal position, and the parts of the clutch remain unshipped.

The working face of the shoulder a" is preferably angular in order to form a more extended bearing against the cam d, whereis raisedagainst the tension of its spring by' the wear of the. parts is lessened.- The. lug c of the catch is likewise beveled as at 0 i The latch may be operated by electromagnetic means controlled by any suitable means, such as manually operated push-buttons, or by devices operated by the article or material in the machine. Asshown in Figs. 1 and 2, the rod (i is suitably connected to an armature m, which is adapted to be actuated in different directions by the attraction of a pair of oppositely disposedmagnets M and M. It is obvious that when the starting magnet M is energized, as by suitably closing a circuit including its winding or coil and a suitable source of electrical supply, the rod is raised, and when the stopping magnet M is similarly energized, the rod is lowered, being returned to central or balanced position in the first instance by gravity and in the second instance by the action of thespring (F. The ends of the magnet coils may be included in any suitable circuit adapted to be opened and closed by any suitable means, as,for example, the push buttons m and W.

The form of latch disclosed in Figs. 1 and 2 is preferred, as, among other reasons, it is readily operated on account of the ease, with which it may be moved on its pivot, and its weight is removed from the operating mechanism. This last fact is of importance where electromagnetic means are employed, as the burden of the armature is thereby greatly lessened, whereby magnets of less strength may be employed.

This application is adivisional case of my earlier application filed July 10, 1902, and bearing Serial Number 115,014.

Having described my invention, I claim 1. In a clutch, the combination of a driving and a driven member, with means to connect and disconnect the members, a latch for reversely operating the said connecting means when in its extreme positions, and means whereby the latch is automatically balanced and maintained in an intermediate position.

2. In a clutch, the combination of a driving and a driven member, with means to connect and disconnect the members, an automatically balanced latch normally in inoperative position for operating the same, and electro-magnetic devices for oppositely moving the latch into operative positions.

3. In a. clutch, the combination of a driving and a driven member, with means to connect and-disconnect the members, a normallv balanced pivoted latch for operating a the same when reversely moved, and provided with a cam-slot, and a movable pin engaging the slot to move the latch.

-l. In a clutcln'th'e combination of a driving and a driven member, with means to connect and disconnect the members, a pivoted latch for operating the same, means to move the latch, and means to hold the latch when in active position against movement onits pivot due to the thrust of the cooperating parts of the clutch. 5. 111a clutch, the combination' of a driving and a driven member, with means to connect and-disconnect 'the members, a pivotedlatchIforJoperating the same, a movable frodg andfl pin and slot connection betweenthe d and latch to move the latter, the slot a yling angular ends to hold the latch in extreme positions.

6. In clutch, the combination, with a driving and a driven member, of a trig- 1. gered pin on the driving member to connect the members, a latch for protraeting and retracting the pin, and means whereby the latch is automatically balanced and held normally in inoperative position.

7'. 111a clutch, the combination with a driving and a driven member, one of the members having a triggered pin and the other a seatfor the pin, of a latch to release the pin when operated in one direction and to restore the pin when operated in the other direction, and means whereby the'latch is automatically returned to and maintained in its inoperative position.

8. In a clutch, the combination with a driven member having a flange, a seat in the flange and an incline on the flange leading to the seat, a driving member having a recess, a pinin the recess in line with the flange and having a ledge orshoulder provided with a recess, a spring to protract thc pin, a spring catch on the driving member having a lug to enter the recess and p10- vided with a shoulder, of a pivoted latch having a. stem, means to balance the latch in inoperative position, an eccentric face on the latch normally within the path of the shoulder of the catch and adapted toengage the shoulder to operate the catch when the latch is'"--*1iioved outwardly, and a cam on the latch normally beyond the shoulder the pin when moved in the other direction and which latch is provided with a cam slot, a rod having a pin engaging the cam slot, an electromagnetic device whose armature operatesti "d, and means to close a circuit onibination with a driving and a driven t; oneof the members having a triggeredzjpin and the other a seat for the pin, of -a-pivoted latch for moving the pin into amlout ot engagement with the seat Vmeans to close the circuit through'the stop- V to return its pin-to a position between the i and having the rod 111 opposi slot, a rod having a pin engaging'thecam means for closing t a cam slot terminating in angu- I lar ends, a slide rod having a pin engaging i the slot, a pair ofelectromagnets for moving "to directions, and means to close the circuit through the magnets. 11. The combination with a shaft, a clutch therefor, and a controller to open and close the clutch,.of a pair of electromagnets hav inga common armature to operate the controller in opposite directions, means to close the circuitthrough the starting magnet, and

ping magnet, each of such means being inde pendent of the other; i g

12. The combination with a driving and a driven member, one of the members havin a pin and the other a seat for the pin, 0 a latch controlling the and having a cam slot and which rod is automatically moved ends ofthe slot, a pair of electro-magnets to move the rod in opposite directions, and

e circuit through the electro-magnets.

13. In a clutch, the combination with a driving and a driven member, one of the members having a spring pressed pin to couple. the members, of a pivoted latch to release the pin when moved in one direction and torestore the pin when moved in the other direction and which latch is rovided with a cam slot, and a sliding rod iaving a pin engaging the cam slot to move the latch.

1-.L. In a clutch, the combination with a driving'and a driven member, one of the members havin a spring pressed pin to couple the mem bers, of a pivoted latch to release the pin when moved in one direction and to restore the pin when moved in the other direction, and which latch is rovided with a cam slot terminating in angu ar ends, an operating rod having a pin engaging the slot and normally occupying, and automatically retnrned to, a position intermediate the ends of the slot.

In testimony whereof I aflix my signature in presence of two witnemes.

HOMER 0. LA BATT.

WVitnesses:

GEORGE R. HARBAUGH, J. MoRoBnnTs.

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