US1689905A - yates - Google Patents

Description

" Oct. 30, 1928. 1,689,905

J. w. YATES I TIME RECORDER Filed Jan- 1923 3 Sheets-Sheet 1 know ATTOIP/VE Y5 Oct. 30, 1928.

3 Sheets-Sheet 2 I J. W.- YATES TIME RECORDER Filed Jan. 1925 J. W. YATES TIME RECORDER Filed Jan. 3, 1923 3 Sheets-Sheet 5 Fig/H A TZ'O/P/VEYS Patented 0a. 30, 1928.

UNITED "STATES.

PATENT OFFICE.

JAMEsw. YATES, or 'cINoINNA'rI, OHIO, ASSIGNOR TO THE CINCINNATI TIME as connnn COMPANY, OFCINCINNATI, OHIO, A CORPORATION on OHIO.

TIME RECORDER.

Application flled'January 3, 1923. SerialNo. 610,521;

My invention relates to time recorders of the type generally known as fully automatlc, in that the shifting of the card with relatlon to the printingmechanism or time wheels, is accomplished entirely by the time mechanism, without any selective act by the operator. I

My invention also relates to the use of afully automatic card tray shift for lateral movementsof a card retainingtray, for the days of the week shift, and of a cam controlled abutment adja'centthe tray'as the m and out shift.

v Among other things it is the object of my invention to accomplish the movement of the card tray by means of the time clock entirely, and to so do this, that the tray is locked in clock actuated position and remains there for a full day without being capable of being forced out of position.

Thus more specifically I move the tray laterally by means of a: cam, energized by a pawl, the weight of which is raised durln'g each twenty four hours and then dropped, the cam being so arranged that it acts as a worm, and is therefore self looking. I return the card tray to starting position by a spring, which spring is placed under tension during the entire week.

In order to prevent the cam from being revolvedina reverse direction, I provide 'a pawl and ratchet, and I also provide an overthrow preventionpawl for theoperating pawl. v

I have designed my whole mechanism and scheme of operation in sucha way that the least possible strain is 'givento the clock mechanism. I

I accomplish my various objects by that certain construction. and arrangement of parts to be hereinafter moref specifically "pointed out and claimed.

. traylev'er. y

4 s a front elevation of the said.

In the drawings, j '1 Figure 1 is a front elevation of'the'device, with casing and certain parts omitted, for purposes of clearness. f

Figure 2 is a side elevation of the device, show ng the operative mechanismfor the card tray-cam.

Figure 3is an edgewise view o'fthe card Figure lever."

Figure 5 is a detail rear elevation of the cam. I

Figure 6 is a section-taken horizontally through the center of the cam.

.Figure 7 is a detail left side elevation,

. showing the pawl and ratchet.

Figure 8 is a front elevation showing'a detailof the cam and operating parts. 7

Figure 9- is a side elevation showing the cam operatingparts.

Figure 10 is a plan view of a card as used in my invention. I

The frame-work parts of the machine are indicated at 1 and the supporting barfor the card tray at 2; The tray comprises a rectangular structure formed of channelled side bars 3, a base bar 4, and ahopper-like mouth 5 into which the card is inserted.

Connected to the tray-is a link'6, connected to a depending arm or'lever 7 This lever, known as the cardtray lever, is pivoted to a small bracket 8 at thebase of the machine. The lever is bentto'provideproper clearance for various mechanism parts, and carries an antifricti'on'rollert), which is cam operated to move the tray from' point to point. A spring 10 is connected to the lower end of the card tray lever and serves to pull it toward an-initial position to the left end of its path of movement.

I have shown portions ofthe timeprinting mechanism as for'example the ribbon 11, the operating handle 12, the time wheels 13, and the ribbon shift bar 14. None of these devices has in its structure any departure fron known forms of construction. 7

Asa means for operating an abutment in the card tray for positioning an inserted card lengthwise at different hours of' the day, with relation to the" printing wheels, I employ the structureset'forth in the patent to Hugh 'M.'Lawton No. 1,253,185, dated January 8,1918l V I 5 1 Thus I have a cam 20, operated byfatrain of gears from the shaft 21 of the time clock, which cam revolves once every twentyfour hours. Resting on the cam is a yoke 22 having acrossroller 23 resting on the cam. At

the forward end 'ofthe yoke is a cross bar 24 of suflicient width to includethe' full path of the card tray. The card tray hasazslide therein; as indicated at.25','which serves as an abutment for any card.- thrustin through the hopper of the tray. This slide has a pin 26 thereon, which rests on the cross bar 24. at all times, and this weight is counterbalanced by a spring 27 at the back of the yoke.

The construction oft-he cam is such that during the day there is a rapid movement of the abutment upwardly, While men are likely to be going in. or out, and a slow or nonmovement when all men are at work.

1 For operating the card tray so that it shall move bodily across the face of the type wheels, thereby making a day of the week shift, I provide a spiral cam member 30 having a groove 31 therein of spiral nature, with a straight line returnportion 32, so that when revolving the cam, with the antifriction roller pin on the card tray lever lying in the groove, the tray can be fed across the front of the machine, until the roller comes to the straight portion whereupon the tray will be pulled back to starting position by the spring 10. A slight movement of the cam will impart a. large movement to the card tray lever at its upper end if located low enough in the machine.

As mounting means for the cam I provide a horizontal shaft 33, set in roller bearing housings 84c, in two interspaced standards 35 at the base of the machine. The cam is then pinned in anydesired way to the shaft so as to revolve therewith, and so as to lie in a horizontal plane. Thespiral groove on the cam is of one complete turn around the axis thereof including of course the straight portion of the groove. The anti-friction pin on the tray lever cuts down friction. and the operation of the cam, its shaft and the card tray lever and tray calls. forbut slight expenditure of energy.

\Vhen the cam is in any position but witl its straight groove portion engaging the card tray pin roller the effect of thespiral is to lock the tray against movement, after the usual principle of locking worm gears. Furthermore I prevent any motion of the cam as a result of trying'to force the tray one way or the other to falsify the machine, by a pawl and ratchet to be described.

When the pin roller is in the straight part of the groove, however, the effect is to permit the tray to be moved wherever it is desired so that some additional holding means is required. For the purpose of holding the tray to the. left hand end of the cam groove, I provide a small plate 36, screwed down by the screw 37- into the base of the groove so that it can rock, and in a socket in the base of the groove I seat a small spring 88, which bears on theplate and elevates its end. This elevated end of the plate will engage the pin roller and hold it atthedesiredpoint. 1

Referring. next to the. operation of the cam, I show as a preferred means a cam 40, driven around once every twenty four hours by means of the gear train 41, from the clock time shaft. On bracket 42 on the base of the machine I mount a lever 43, which is pulled by a spring 4 1 so as to bring its forward end downwardly.

The efiect of the spring is to pull upwardly the rear end of the lever, which carries a roller 46, said roller bearing against the surface of the came The cam is so shaped that it gradually lowers the rear end of the lever against the spring, and then at the end of twenty four hours, drops the roller oil the point 45 on the cam, and permits the spring to pull. the lever smartly upward.

This spring action is what directly moves the tray and it may be observed that if the clock fails, for any reason, due to negligence, or in winding or clogging up, to fully clevate the lever and drop it, that this will rcsult fromor give rise to a stopping of the clock thereby giving an indication of the fact that something is wrong. If an operator should endeavor to hold the tray against movement when the lever is released under its spring tension this will not stop the clock, which will remain free to run as usual until the tray is released, whereupon the spring will move it over.

The method. of revolving the cam carrying shaft includes a ratchet 50 on the shaft. over which plays a pawl 51.. This pawl 51 is mounted on a rocker 52 on the shaft and free to revolve thereon, this rocker being coupled by a link 58, with the lever 13. A spring 54: is connected to a pin 55 on the pawl and to the rocker, to place spring pressure on the pawl, whereby it will engage the ratchet in the proper direction, and snap'over its teeth in the other.

I have shown the ratchet 50 as having seven teeth, and I also provide a ratchet 56, fast on the shaft and having seven rectangular teeth. Of course the number of teeth is variable with the nrunbe-r of times it is desired to have the tray shifted. I

A pawl 57 is provided, and mounted on a fixed stud or pin 58 on the machine f. 'ame. This pawl is pressed by means of a spring 59 toward the ratchet 56.

The tootlrGO on the pawl engages in the rectangular teeth of its ratchet. The pawl has also a laterally extending head portion 61, which lies in the path of a pin 62 on the operating pawl 51. i

The parts described are so arranged that as the cam raise-s the lever, rocker, and pawl to a position of highest elevation, the pin 62 will pass the extension 61 and take a posi' tion above it. As soon as the lever is released, and the spring pulls it down at the forward end, the pin 62 first strikes the pawl 57, out of mesh with the ratchet, thenengages the adjacent tooth of the operating ratchet 50 and revolves the cam and shaft. Thepin 62 passes the extension 61 in its downward path, so that the pawl. 57 engages the surface of its ratchet ready to snap into the next notch, the former notch having been moved away by the action of the operating pawl, prior to week so that each one step of movement of the operating ratchet will move the cam enough to shift the tray laterally one column space. The card printed by my invention will be as shown in Figure 10, with hours" printed in vertical columns and days of the Week across the card.

Having thus described my invention, what l'claim as new and desire to secure by Letters Patent, is:

1. A device for shifting a card tray in time recorders laterally for day to day changes in position comprising a lever connected at one end to the card tray, and at the other to a fixed point, a projectionon the'lever, a spiral cam adapted to receive said projection and means for operating said cam driven by the time movement of the recorder, and a spring resisting the cam impelled movement of the tray. r

2. A device for shifting a card tray in time recorders laterally for-day to day changes in position, comprising a lever connected at one end to the card tray, and at the other to a fixed point, a projection on the lever, spiral cam adapted to receive said projection and means for operating said cam driven by the time movement of the recorder, aspring pulling said tray to a starting position for the first day of the week, and a straight portion in the cam through which. portion the lever projection is pulled by the spring, said operatmg means forthe cam comprising a clock driven cam disk and a member engaglng the I clock driven cam, and effecting movement of the spiral cam one step for each revolution of the clock driven cam.

3. A device for shifting a card tray in time recorders laterally for day to day changes in position, comprisinga lever connected at one end to the card tray, and at the other to a fixed point, a projection on the lever, a spiral cam adapted to receive said projection and means for operating said cam driven by the time movement of the recorder, a spring pulling said tray to a starting position for the first day of the week, and a straight portion.

in the cam through which portion the lever projection is pulled by the spring, and means in said straight portion to prevent reverse movement of the projection against said spring.

4:. n a time recorder incombination with a printing element, a card'tray moving cam comprising a body having a spiral groove therein,'and a straight return portion, and a spring latch element in the straight portion adapted to prevent-movement of a cam engaging projection in any onedirection but the starting point of the spiral.

5 In a time recorder, a clock driven member, a card tray, an abutment in the card tay, a tray moving member, and a gear train fromthe clock-operated member adapted to shift the abutment into a variety of po sitions providing-for hours of the day, and another gear train from the clock-operated member adapted to shift the tray moving member once every twenty four hours or multiples thereof, for day or multiple day shifts.

6. In a time recorder, having a time movement, the combination of a card tray movable laterally, a projection'carrying member connected to said tray, a cam for engaging said projection, and means energized bythe time movement for moving said cam by steps and means for preventing movement of the cam in any direction intermediate said step movements, said cam having a spiral groove with a return straight portion, and a latch to prevent movement of the projection in any but one direction in the groove.

1 JAMES WV. YATESQ

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