US2136884A - Warper clock - Google Patents

Description

Nov. 15, 1938. B. MARCELLUS WARPER CLOCK Filed Nov. 2, 1935 4 Sheets-Sheet 1 INVENTOR Brae/(5 Marcel/us "ATTOREEYS 4 Sheets-Sheet 2 Nov. 15, 1938. B. MARCELLUS WARPER CLOCK Filed Nov. v 2, 1955 Nov. 15, 1938. MARCELLUS 2,136,884

WARPER CLOCK Filed Nov. 2, 1935 4 Sheets-Sheet 3 Brooks Marcel/us 444M?" Whi ATTORN Y5 Nov. 15, 1938. B. MARCELLUS 2,136,384

WARPER CLOCK Filed NOV. 2, 1935 4 Sheets-Sheet 4 INVENTOR Brae/(s Marce/lus WWQM W YMM ATTORNEYS Patented Nov. 15, 1938 UNITED STATES PATENT OFFICE WABPER CLOCK ration of Illinois Application November 2, 1935, Serial No. 47,919

Claims.

For an understanding of the environment in which warper clocks are used and the practical conditions which theymust IuIfiLreference is made to the Peterson Patent No. 1,747,734 and particularly to page 1, lines 1-22, and page 3, lines 44-77.

The primary function of a warper Models to eifect stoppage of the warper when a predetermined length of yarn has been wound upon the warp beam or log. The latter is rotated through frictional contact of the yarn mass on the beam or log with the periphery of the driving drum of the warper. The clock is driven, not directly by the yarn which it purports to measure, but through a positive gear connection with the drum. The measuring of the yarn therefore actually consists in registering the number of revolutions of the drum in terms of yardage of yarn.

In the manufacture of warpers, slight variations in the diameter of the drums is inevitable. Even a slight diiference between the diameters of the drums of two warpers would make an appreciable difference in the length of yarn on the beams wound on the respective warpers, since the beams usually contain many thousands of yards of yarn. In the construction disclosed in the above-mentioned Peterson patent, the clock unit comprised a change gear train by means of which the speed of the clock could be adjusted to register the revolutions of the warper drum in terms 01 yards of yarn on the beam. If the clock were moved from one warper to another, the gear train had to be adjusted to compensate for the difference in drum diameters. To obviate the necessity for such readjustment I omit the change gear train from the clock unit and place the change gear train on the warper so that any clock may be placed on any warper without loss of accuracy in the measurement of yarn.

A further improvement in the present clock over the one shown in said Peterson patent resides in the fact that it is totally enclosed and need not be opened when resetting is required, thus preventing the entrance of lint. Moreover, the present clock is more compact and more easily handled and can be placed in such position on the warper that it can be more easily read by the operator during the filling of a beam.

The clock effects stoppage of the warper by closing an electric circuit. It is desirable that the switch shall be closed by a rapid movement; and such rapid movement I obtain from a slowly moving part through the use of permanent magnets as hereinafter described.

In the accompanying drawings,

Figure 1 is a fragmental perspective view oi. a beam warper equipped with a clock embodying the features of my invention.

Fig. 2 is a front elevation of the clock, with broken away, the clock pointer having made approximately a third of a revolution from the starting position.

Fig. 3 is a detail perspective view of a certain three-armed element comprised in the clock.

Fig. 4 is a vertical sectional view on dotted line 4-4 of Fig. 2.

Fig. 5 is a vertical sectional view in the plane of dotted line 5-5 of Fig 2.

Fig. 6 is a fragmental front elevation, the switch having closed.

Fig. 7 is a fragmental top plan view.

Fig. 8 is a fragmental rear view.

Fig. 9 is a fragmental front view of a warper clock embodying the present invention and modified for use on a ball warper.

Fig. 10 is a section on line 1010 of Fig. 9.

Fig. 11 is a view similar to Fig. 10, but showing the parts in another position.

Fig. 12 illustrates the electric circuits.

Describing first the beam warper clock shown in Figs. 1 to 8:

In Fig. l the friction driving drum is indicated at A and the clock at B. The clock is driven from the drum through a change gear train housed in a gear casing C, power being transmitted from the gear train to the clock through a vertical shaft D. The change gear train in the casing C may be adjusted in such manner that the angular velocity of the take-off or driven shaft D bears a. predetermined fixed relation to the peripheral speed of the drum A. This predetermined relation is made standard for all machines using the clocks of the type herein disclosed so that these clocks may be transferred from one machine to another without affecting their accuracy of registration despite variations in drum diameter. As a consequence, the warper clocks are interchangeable between diiferent machines and without th necessity of individual adjustment.

The arrangement described above by means of which it is possible to use a warper clock of the type herein contemplated interchangeably on different machines and without the necessity of individual adjustment constitutes no part of the present invention but is described and claimed in my copending divisional application Serial No. 200,617 filed April 7, 1938.

The mechanism of the clock is enclosed within a case I having a front cover plate 2. The case I may be mounted upon the warper in any preferred way, as by means of a dowel 3 and a screw 4.

A vertical drive shaft I (Fig. 5) is rotatably mounted in the case I and is adapted at its lower end for detachable connection with the shaft D. Herein the upper end of the shaft D is shown as transversely slotted or notched at D to receive a transverse pin 5' in the lower end of the shaft 5. To the upper end of the shaft 5 is fixed a spur gear 8 arranged to mesh with a similar gear 1 on a shaft 8. The latter shaft is rotatably mounted in a bracket 9 (Figs. 5 and '7) which is pivoted upon the shaft 5. To the lower end of the shaft 8 is fixed a worm I0 arranged to mesh with a spiral gear wheel I I rigidly fixed to a shaft I2 that is journaled in the case I. Said gear wheel serves to rotate an adjustable device for closing an electric circuit when the gear wheel has been rotated in a counterclockwise direction through a predetermined portion of one revolution. In order that the gear wheel iI may be manually rotated to zero position when starting a new beam, the shaft 8 is supported in the pivoted bracket 9 so that the worm I0 may be disengaged from the teeth of the gear wheel. A spring I3 (Fig. 7) anchored to the rear wall of the case I and connected to the bracket 9 at I4 normally holds the worm I 0 in mesh with the gear wheel II. A stop screw I5 on the bracket limits the action of the spring.

A graduated dial I6 non-rotatably connected with the shaft 8 makes one revolution for each 500 yards wound on the warp beam. IT is a zero line or marker on the top wall of the casing I to coact with the zero line on the dial I6. In order that the relation between the dial I6 and the gear wheel II may be adjusted, the shaft 3 is carried by the pivoted bracket 9 as described. In order that the dial I6 may be manually adjusted to its zero position or to some position representing a fraction of 500 yards, the gear I is made disengageable from the gear 6, as shown in Fig. 5, where it will be seen that the gear I has a hub I8 which is rigidly secured to the hub of the dial I6, and that the latter is slidably but non-rotatably connected to the shaft 8 by means of a spline I9. A spring 20 interposed between a nut on the shaft 8 and an internal shoulder in the dial I6 normally holds the gear I in mesh with the gear 6. A knurled knob 2I on the dial affords means for lifting the dial and the gear I, for turning the dial, and for pushing the bracket 9 against the tension of the spring I3. To disengage the worm I 0 from the spiral gear wheel II, the operator pushes horizontally against the knob 2| to swing the bracket 9 countel-clockwise on the axis of the shaft 5, as viewed in Fig. '7. As shown in full lines in Fig. 5 and in dotted lines in Fig. '7, the opening 22 in the top wall of the casing I through which the hub I8 extends is enlarged to permit the bracket 9 to be swung on the shaft 5.

Rigidly secured to the gear wheel II is a dial 23 which is graduated to represent, in this instance, a maximum registration of 42,000 yards. The starting position of the dial 23 is determined by contact of a pin 24 (Fig. 2) on the gear wheel II with the upper end of a stop member 25. For a reason to appear hereinafter, the stop member 25 in yieldably mounted, being pivoted on a frame plate 26 on the axis 26 and yielding- ,ly held in normal position by a spring 21. A 'lug 28 on the stop member normally bears against the edge of the plate 26.

As before indicated, the gear wheel II and the dial 23 carry with them in their rotation an arm 29 for closing an electric circuit to stop the warper upon the completion of the beam, said arm being adjustably connected to the gear wheel I I and the dial 23 so that it shall move a greater or less distance before closing the circuit, depending upon the yardage to be wound on the beam. The arm 29 is rigid with a diametrically opposite pointer 30 lying in front of the dial 23. The arm 29 and the pointer 30 are rigid with a pointer 3I arranged to move past the graduations on a stationary annular dial 32 forming part of the cover plate 2. The zero mark on the stationary dial 32 registers with the circuit-closing position of the arm 29, as shown in Figure 6. .As shown in Fig. 2, the aunular dial 32 surrounds the dial 23, said dials and the pointers 30 and 3I being visible through a glass 33 that is held in position by a gasket 34 and a bezel ring 35 (Fig. 5).

Referring now to Fig. 4, the circuit-closing arm 29 and the. pointers 30 and 3I are rigidly attached to a spindle 36 which is mounted in an axial bore in the shaft I2. Said parts 29, 30 and 3| are adjustably connected to the dial 23 by means of a pin 31 on the arm 29, said pin being adapted to lie in any one of a peripheral series of notches 38 (Fig. 2) in the dial 23. The spacing of the notches 38 corresponds to units of 500 yards. The spindle 36 is axially slidable, as indicated in dotted lines in Fig. 4, to disengage the pin 31 from the notch 38 with which it has been in engagement. For this purpose a knob 39 is fixed on the rear end of the spindle. A

spring 40 interposed between the end of the shaft I2 and an internal shoulder in the knob 39 normally holds the pin 31 in engagement with the selected notch 38. To prevent accidental disengagement of the pin and the notch, a latch 4I pivoted on the back wall of the case I is arranged to lie between the knob 39 and a collar 42 on the shaft I2.

As shown in Fig. 2, the graduations on the dials 23 and 32 increase in value in the clockwise direction. The pointer 30 is set on the dial 23 according to the number of yards of yarn to be wound on the beam. In the winding of yarn on the beam, the dial 23 rotates in the counterclockwise direction, thus carrying the pointer 3I past the graduations on the annular dial 32 in the same direction, i. e. toward the zero point on the dial 32. Thus it will be seen that the pointer 3| indicates at any given time during the winding of yarn on the beam the yardage that must be wound on the beam to bring the yarn mass on the beam to the size determined by the setting of the pointer 30.

The before-mentioned electric switch which is closed by the arm 29 is constructed, in the pres ent instance, as follows: An element 43 (Fig. 3) pivotally supported on the plate 26 on the axis 26* comprises an arm 44 carrying a lug 45 that is arranged to be engaged by a lug 46 on the arm 29 for the purpose of moving the element 43 in a counterclockwise direction to close a circuit to ground and thus stop the warper. The element 43 also comprises an arm 41 carrying a. contact 48 adapted to engage a contact 49. The latter contact is mounted on a spring member 50 which is supported by, but insulated from, the case I. Electric current is supplied to the attaching portion of the spring member 50 by means of a plunger 5|, a spring 52 and a plate 53. The plunger 5| is adapted to engage an electric contact (not shown) on the warper framework when the clock is attached to the warper by means of the dowel 3 and the screw 4.

The arm 41, which is of magnetic material, extends between two permanent magnets 54 and II. The lower magnet 54 acts in conjunction with gravity to hold the switch open until the lug 40, acting on the lug 45, has raised the arm 41 to a point slightly beyond midposition between the magnets, whereupon the upper magnet 55 causes the arm 41 to move quickly upward and close the switch. Sudden closing of the switch by the slowly moving lug 40 is thus effected at the desired moment. The magnet 55 also serves to hold the switch closed until the clock is reset for the winding of the next beam of yarn.

Closed condition of the switch 48-40 is visually indicated to the operator by an arm 56 forming part of the element 43, a portion of said arm being visible through a recess 51 in the edge of the annular dial 32 (see Fig. 6) when the switch is closed. The operator is thus informed that the stoppage of the warper was due to completion of the beam.

In order that it shall not be possible to disengage the worm i0 from the spiral gear H while the warper is running without causing stoppage of the warper, there is attached to the pivoted bracket 9 a spring finger 58 (Figs. 2 and 5) carrying a contact that is arranged to engage a contact 59 on the base portion of the spring member 50 (and thus close a circuit to ground) before the worm i0 is entirely out of mesh with the spiral gear.

The warper is preferably provided with a pivoted beam guard (not shown) which, when in its lower position, prevents inadvertent contact of the operator with the swiftly revolving beam, and which must be raised to an inefiective out-of-theway position before thebeam can be removed and another substituted. In order to prevent the warper from being started while the beam guard is up, I provide a switch to close a circuit to ground, said switch being closed by the beam guard when the latter is raised. Said switch comprises a spring contact finger 60 (Fig. 2) supported in the clock case by an insulating block 6i and connected by a wire Gla to the base portion of the spring member 50. A plunger '62 slidably mounted in the clock case is adapted to engage the contact finger 60, but is normally held out of such engagement by a spring 63. A camshaped ferrule 64 on the outer end of the plunger 02 is adapted to be engaged by a part carried by the beam guard when the latter is raised and thereby close the switch 60-42.

A pin 65 (Fig. 4) on the spiral gear II is arranged to engage the lug 45 (Figs. 2 and 3) and thus restore the switch 4849 to open position when the gear i l, the dial 23, the arm 29 and the pointer 3| are reset to starting position.

Fig. 2 may be assumed to show the clock as being driven by the warper. The clock has been set to wind 21,000 yards on the beam, and about 5,250 yards remain to be wound. The dial IS, the dial 23, the arm 29 and the pointer 3| are revolving counterclockwise. When the lug 46 reaches and moves the lug 45 the switch 40-49 will be closed, thus stopping the warper, with the pointer 3| at zero on the annular dial 32 and the zero line on the dial it at the zero line I! (Fig. '1) The beam guard is then raised by the operator, thus closing the switch 6052, and an empty beam is substituted for the filled beam. The beam guard is then lowered, thus opening the switch 00-02. If the new beam is to contain the same amount of yarn as the last one, the dial 2.4, arm 20 and pointer II are reset to starting position by first pressing laterally against the knob 2| to disengage the worm ill from the spiral gear ll, then turning the spiral gear clockwise by means of the knob 30 (Fig. 4) until the pin 24 stops against the upper end of the stop 25, and then releasing the knob 2i. If the position of the dial l0 has been disturbed in these operations, it should be returned to zero position before the worm I0 is placed in mesh with the gear ll.

If the new beam is to contain a different number of yards from that of the last preceding beam, the latch 4| is raised, the knob 30 pushed inwardly to disengage the pin 31 from the notch 33 with which it is in engagement, and the knob 39 turned to place the pointer 30 at the desired graduation on the dial 23, the knob being then released to place the pin 31 in the corresponding notch, and the latch 4| returned to its effective position. The length of the are through which the lug 46 must move before it can engage the lug 45 is thus altered to correspond with the yardage to be wound on the beam.

If the clock is to be set for the winding of a yardage which is not a multiple of 500 yards, say, 21,200 yards, the pointer 30 is set at 21,500 on the dial 23 by engaging the pin 31 with the notch 30 that corresponds to such a setting (the pointer 30 being then half-way between the graduations for 21,000 and 22,000), the worm I0 is demeshed from the spiral gear, the dial 23 and the spiral gear II are turned by means of the knob 30 to bring the pin 24 against the stop 25, the worm i0 is returned into mesh with the gear II, the gear I is demeshed from the gear 5, the dial it turned counterclockwise to place the 300 yard graduation on said dial into register with the zero line H and the gear I reengaged with the gear 6. Such turning movement of the dial it produces counterclockwise movement of the gear I l, the dial 23, the arm 20 and the pointer 31 to place the latter at a point corresponding to 21,200 on the dial 32.

When the gear wheel II is turned clockwise to place the pin 24 against the stop 25, the pin 55 engages the lug 45 and forces the three-arm element 43 into the open-switch position shown in Fig. 2. As shown in Fig. 4, the pins 24 and 65 are in alinement; they are on opposite faces of the gear wheel i I. When the pin 24 is arrested by the stop 25, the circuit-opening pin 65 engages the lug 45. The dotted representation of the pin 24 in Fig. 2 is merely intended to show that said pin will strike the end of the stop 25 when the wheel i i is turned clockwise. It may be noted that the pin 65 engages the rounded side of the lug 45,- the side at the left in Fig. 2 and the upper side in Fig. 5. The circuit-closing lug 46 engages the opposite side of the lug 45, as shown in Fig. 6. From Figs. 4 and 5 it will be understood that the stop 25 is located in position to be engaged by the pin 24, and that the lug 45 is so located as to be engaged alternately by the circuit-closing lug 46 and the circuit-opening pin 65.

After a new beam has been put in the warper, and before the clock is reset, the beam is sometimes run empty while the operator holds a piece of sandpaper against the inside of the beam head to remove any burrs or splinters which may be on it. If the preceding beam contained so much yarn that the dial 23 had made nearly a complete revolution, the additional movement caused by such rotation of the new beam may bring the pin 24 into engagement with the stop 25. In that event the stop 25 will yield to allow the pin 24 to pass in the counter-clockwise direction, and thus avoid breakage.

The embodiment shown in Figs. 1 to 8 is especially adapted for use upon beam warpers. When a clock embodying the present invention is to be used upon a ball warper, it is desirable to provide a gear train between the warper and the clock which shall drive the worm if! at the rate of one revolution of the worm to two hundred and fifty yards of yarn.

In the operation of a ball warper it is necessary to stop the warper at relatively frequent intervals in order that lease strings may be inserted in the sheet of yarn. To enable the hereinbefore described warper clock to stop a ball warper at predetermined intervals, the following additional features are incorporated in the clock.

Referring to Figs. 9, 10 and 11: The spiral gear ll is provided with screw-threaded holes to receive studs 10, the holes being spaced apart at a distance equivalent to five hundred yards of yarn wound on the beam or log". The conical inner ends of the studs 10 are arranged to engage an arm H which is pivoted in the clock case to swing on the vertical axis 12. An expansive spring 13 holds the arm H in a contact with the rear side of the spiral gear I l and the succession of studs 10. On the arm II at the opposite side of its axis '12 is a spring contact arm ll carrying two contact points 75 and 16. Rigidly attached to the hub of the dial it is a cam 11 that is engaged by a cam follower 18 that is pivoted on the vertical axis 19. Fastened to the cam follower i8 is an insulated plate carrying two contacts 88 and 80 adapted to engage the contact points 15 and 16, respectively. Mounted on an insulating block 8| in the clock case are two leaf springs 82 and 83 that bear against the contacts on the plate 80, and hold the cam follower T8 in contact with the cam 11. The spring 83 is connected by means of an insulated wire 84 to the base portion of the spring contact 59 (Fig. 2), so that when the contact 15 is engaged by the contact 80 on the plate 80 a circuit will be closed to ground to stop the warper. The spring 82 is in circuit with a signal light 85 so that when the warper is stopped through the conjoint action of a stud l8 and the cam 11, a visual signal is given to the operator to put a lease string in the warp.

When the arm H is in contact with the rear side of the spiral gear II, the reoiprocations imparted to the contacts 80 and 80* on the plate 80 by the cam H and the springs 82 and 83 are insufiicient to bring said contacts into engagement with the contacts 15 and 16, but when the arm H rides up on the conical end of a stud 10 the contacts 15 and 16 are placed in such position that they will be engaged by the contacts 80' and 80 on the plate 80 when the latter is moved toward the contacts 15 and 16 by the springs 82 and 83 under the control of the cam 'll. Thus the slowly moving gear ii and the more rapidly rotating cam 11 coact to produce closing of the stop circuit at intervals determined by the spacing of the studs 10.

While I have described the present construction in considerable detail, it should be understood that the invention is not limited to such details, except to the extent indicated in the appended claims.

I claim as my invention:

1. A warper clock having, in combination, a drive shaft, a frame pivoted on the axis of said shaft, a second shaft mounted in said frame, a

gear fixed on the drive shaft, a gear splined on the second shaft and adapted to be moved into and out of mesh with the first-mentioned gear, a dial fixed to the second gear, a gear wheel having a gear connection with the second shaft which may be broken by pivotal movement of said frame, a second dial fixed coaxially to said gear wheel, a spindle arranged coaxially of said gear wheel and second dial, an arm fixed on said spindle, a driving connection between said arm and said dial which is disengageable through axial movement of said spindle to permit angular adjustment of the arm with relation to the second dial, a pointer fixed to said arm to coact with the second dial, a stationary annular dial concentric with the second dial, the graduations on the second dial increasing in value in one direction and the graduations on the stationary dial increasing in value in the same direction, a second pointer fixed to said spindle to coact with the stationary dial, a pin on the gear wheel, a stop for engagement by said pin to define the starting position of the gear wheel, and a device arranged to be operated in the travel of said arm as the second pointer reaches the zero position on the stationary dial.

2. A warper clock having, in combination, a drive shaft, a frame pivoted on the axis of said shaft, a second shaft mounted in said frame, a gear fixed on the drive shaft, a gear splined on the second shaft and adapted to be moved into and out of mesh with the first-mentioned gear, a dial fixed to the second gear, a gear wheel having a gear connection with the second shaft which may be broken by pivotal movement of said frame, a second dial fixed coaxially to said gear wheel, an arm angularly adjustable with relation to the second dial, a driving connection between said arm and said second dial, a pin on the gear wheel, a stop for engagement by said pin to define the starting position of the gear wheel, and a device arranged to be operated in the travel of said arm.

3. A warper clock having, in combination, a drive shaft, a gear wheel having a gear connection with the drive shaft, a rotary dial fixed coaxially to said gear wheel, a spindle arranged coaxially of said gear wheel and dial, an arm fixed on said spindle, a driving connection between said arm and said dial which is disengageable through axial movement of said spindle to permit angular adjustment of the arm with relation to the dial, a pointer fixed to said arm to coact with the dial, a stationary annular dial concentric with the rotary dial, the graduations on the rotary dial increasing in value in one direction and the graduations on the stationary dial increasing in value in the same direction, a second pointer fixed to said spindle to coact with the stationary dial, means to define the starting position of the gear wheel, and a device arranged to be operated in the travel of said arm as the second pointer reaches the zero position on the stationary dial.

4. A warper clock having, in combination, a drive shaft, a frame pivoted on the axis of said shaft, a second shaft mounted in said frame, a gear fixed on the drive shaft, a gear splined on the second shaft and adapted to mesh with the first-mentioned gear, a dial fixed to the second gear, a gear wheel having a gear connection with the second shaft which may be broken by pivotal movement of said frame, and a dial mechanism actuated by the gear wheel to register in multiples of the units registered by the first dial.

5. A warper clock having, in combination, a drive shaft, a gear wheel having a gear connection with the drive shaft, a rotary dial fixed coaxially areas to said gear wheel, an arm arranged coaxially of said gear wheel and rotary dial and angularly adjustable with relation to the rotary dial, means to fix the arm in adjusted position with relation to the rotary dial and forming a driving connection therebetween, a pointer fixed to said arm to coact with the rotary dial, a stationary dial concentric with the rotary dial, the graduations on the rotary dial increasing in value in one direction and the graduations on the stationary dial increasing in value in the same direction, a second pointer fixed to the arm to coact with the stationary dial, and a device arranged to be operated in the travel of said arm as the second pointer reaches the zero position on the stationary dial.

6. A warper clock having, in combination, two rotary dials, one to indicate in multiples of the units registered by the other, and a gear connection between said dials to rotate the registering dial a plurality of times in each revolution of the indicating dial, said connection being severable to allow relative adjustment of the smaller-amount dial with relation to the other.

7. A warper clock having, in combination, a rotary driven dial, a stationary dial concentric with the rotary dial, two diametrically opposite pointers, each to coact with one of the dials, an arm with which the pointers are rigidly connected, means for effecting rotation of said pointers and said arm, and a device arranged to be operated by said arm as the pointer for the stationary dial reaches the zero position.

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8. A warper clock having, in combination, a rotary driven dial having a tubular shaft, a stationary dial concentric with the rotary dial, two diametrically opposite pointers, each to coact with one of the dials, an arm with which the pointers are rigidly connected, a spindle to which said pointers and arm are fixed, said spindle being slidable in said tubular shaft and having a handle portion, a driving connection between said spindle and the rotary dial which can be broken by endwise movement of the spindle, means normally holding the spindle against such movement, and a device arranged to be operated by said arm as the pointer for the stationary dial reaches the zero position.

9. A warper clock having, in combination, a rotary driven dial, a stationary dial concentric with the rotary dial, two pointers, each to coact with one of the dials, means to operatively connect the pointers to the rotary dial in the desired angular relation for rotation therewith, an arm with which the pointers are rigidly connected for rotation therewith, and a device arranged to be operated by said arm as the pointer for the stationary dial reaches the zero position.

10. A warper clock having, in combination, a rotary driven dial, a stationary dial concentric with the rotary dial, two diametrically opposite pointers, each to coact with one of the dials, said pointers being operatively connected to rotate with the rotary dial, an arm with which the pointers are rigidly connected for rotation therewith, and a device arranged to be operated by said arm as the pointer for the stationary dial reaches the zero position.

11. A warper clock having, in combination, a rotary driven dial, a stationary dial concentric with the rotary dial, two diametrically opposite pointers, each to coact with one of the dials, an

arm with which the pointers are rigidly connected, said pointers and arm in operation being stationary with relation to one of said relatively movable dials, and a device arranged to be operated by said am in the course 01 relative movement between said am and one of the dials.

12. A warper clock having, in combination, a registering mechanism, a switch actuating member, means for driving said registering mechanism and said member in synchronism, an electric switch comprising a member movable in the direction to operate the switch by said actuating member, and means to impart a sudden movement to the switch member to complete the operating movement of the switch initiated by said actuating member.

13. A warper clock, having, in combination, a registering mechanism, a switch actuating member, means for driving said registering mechanism and said member in synchronism, an electric switch comprising a member movable in the direction to operate the switch by said actuating member, and a magnet arranged to attract said switch member to impart a sudden movement to the switch member to complete the operating movement of the switch initiated by said actuating member.

14. A warper clock having, in combination, a registering mechanism including rotary means driven in one direction and arranged to be reset by movement in the opposite direction, an electric switch comprising a member movable in the switch-closing direction by said rotary means when the latter moves in one direction, and movable in the switch-opening direction by said rotary means when the latter moves in the resetting direction, and magnets at opposite sides of said switch member, each adapted to impart a sudden movement to the switch member to complete a movement of the latter initiated by said rotary means.

15. A warper clock having, in combination, a rotary part having a series of studs, a cam, means for rotating said cam with relation to said part at a speed definitely related to but higher than that of said part, and an electric switch arranged to be closed by the conjoint action of one of the studs and said cam.

16. A warper clock having, in combination, two concentric dials, one being stationary, and the other being mounted for rotation, the graduations of both dials increasing in value in the same direction, a setting pointer for the rotary dial, an indicating pointer for the stationary dial, both pointers being rigidly connected together and adjustably connected to the rotary dial, a drive wheel rigid with and concentric with the rotary dial for rotating said rotary dial and said pointers in the direction contrary to the firstmentioned direction to the zero position on the stationary dial, a stop adjacent to said zero position, a setting pin on the wheel to coact with said stop in initially setting the rotary dial, a control device adjacent to said zero position, a lug adjacent to and moving with the indicating pointer for actuating the control device, and a pin on the drive wheel adjacent to the setting pin for resetting the control device.

17. A warper clock having, in combination, two concentric dials, one being stationary, and the other being mounted for rotation, the graduations of both dials increasing in value in the same direction, a setting pointer for the rotary dial, an indicating pointer for the stationary dial, both pointers being rigidly connected together and adjustably connected to the rotary dial, means for rotating the rotary dial and said pointers in the direction contrary to the firstmentioned direction to the zero position on the stationary dial, a stop adjacent to said zero position, a setting pin connected to the rotary dial to coact with said stop in initially setting the rotary dial, a control device adjacent to said zero position, a lug adjacent to and moving with the indicating pointer for actuating the control device, and a pin connected to the rotary dial adjacent to the setting pin for resetting the control device.

18. A warper clock having, in combination, two concentric dials oi different diameters, the larger dial being stationary, and the smaller dial being mounted for rotation, the graduations 01 both dials increasing in value in the same direction, a setting pointer for the smaller dial, an indicating pointer for the larger dial, both pointers being rigidly connected together and adjustably connected to the smaller dial, and means for rotating the smaller dial and said pointers in the direction contary to the first-mentioned direction to the zero position on the stationary dial.

19. A warper clock having, in combination, two concentric dials of different diameters, one dial being stationary, andthe other being mounted for rotation, the graduations of both dials increasing in value in the same direction, a setting pointer for the rotary dial, an indicating pointer for the stationary dial, both pointers being rigidly connected together and adjustably connected to the rotary dial, and means for rotating the rotary dial and said pointers in the direction contrary to the first-mentioned direction to the zero position on the stationary dial.

20. A warper clock having, in combination, two dials, one being stationary, and the other being mounted for rotation, the graduations of both dials increasing in value in the same direction, a setting pointer for the rotary dial, an indicating pointer for the stationary dial, both pointers being connected together for synchronous movement and being adjustable with relation to the rotary dial, and means for rotating the rotary dial in the direction contrary to the first-mentioned direction to move the indicating pointer to the zero position on the stationary dial.

21. A warper clock having, in combination, a rotary driven dial having a tubular shaft, a stationary dial of larger diameter concentric with the rotary dial, two pointers, one for each dial, a

spindle to which the pointers are rigidly connected, said spindle being mounted in said shaft for rotation and endwise movement and having a handle portion, a connection between said spindle and the rotary dial which can be broken by endwise movement of the spindle, and means normally holding the spindle against such movement.

22. A warper clock having, in combination, a rotary driven dial having a tubular shalt, a stationary dial of larger diameter concentric with the rotary dial, a unit forming two pointers, one ior each dial, and a spindle to which the pointers are rigidly connected, said spindle being mounted in said shaft for rotation and endwise movement and having a handle portion, said rotary dial having a circular series of notches, a stud attached to said unit and adapted to be engaged and disengaged with any of said notches by endwise movement of the spindle, and means normally holding the spindle against such movement.

23. A warper clock having, in combination, a rotary driven dial having a tubular shaft, a stationary dial concentric with the rotary dial, two pointers, one for each dial, a spindle to which the pointers are rigidly connected, said spindle being mounted in said shaft for rotation and having a handle portion, and an adjustable connection between said spindle and the rotary dial.

24. A warper clock having, in combination, a rotary driven dial, a stationary dial 0! larger diameter concentric with the rotary dial, and two pointers, one for each dial, said pointers being rigidly connected together and rotatably adjustable with reference to the rotary dial.

25. A warper clock having, in combination, a rotary driven dial, a stationary dial concentric with the rotary dial, two pointers each to coact with one oi the dials, and means to connect the pointers to the rotary dial in the desired angular relation.

26. A warper clock having, in combination, two dial mechanisms, one having a rotary dial and a stationary zero marker, and the other having a stationary dial and a revoluble pointerarranged to register in multiples of the units registered by the first dial mechanism, said pointer being driven with the rotary dial and being adjustable in relation to the rotary dial.

27. A warper clock having, in combination, two dial mechanisms, one having a rotary dial and a stationary zero marker, and the other having a stationary dial and a revoluble pointer arranged to register in multiples of the units registered by the first dial mechanism, said pointer being driven with the rotary dial and being adjustable in relation to the rotary dial, means to drive the rotary dial, said rotary dial being disengageable from the driving means to permit setting of the rotary dial with reference to its zero marker to represent a fraction oi such a multiple.

BROOKS MARCELLUS.

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