US1077611A - Revolution-counter. - Google Patents

Description

' c. KORTE.

REVOLUTION COUNTER.

APPLIGATION FILED AUG. 31, 1911;

1,077,61 1 Patented Nov. 4, 1913.

2' SHEETS-SHEET l.

G. KORTE.

REVOLUTION COUNTER. APPLICATION FILED AUG.31, 1911.

1,077,61 1 Patented N0v.4, 1913.

2 SHEETSSHEET 2.

m W W- WM %-i-) UNITED sir-Arms PATENT oFFIoE,

i CHRISTIAN KOBTE, OF "LEEDS, ENGLAND, ASSIGN'OR 0F ONE-THIRD TO SAMUEL DENISON AND ONE-THIRD TO GEORGE KERRY DENISON, BOTH Q1 LEEDS,

ENGLAND.

Specification of new rat-m. a plicatio filed August :1, 911. Serial in. 646,989.

nnvonua'xon-coun'rnn.

Patented Nov. 4, 1913.

rotary s afts or other revolving bodies and particularly to that type or class of same wherein the timing and counting mechanisms are desired to be put into action simultaneously; and the object of my said invention is the production of devices that may be put into action only by the rotary motion of the shaft or body, the revolutions of which have to be counted and registered and that in such a manner as will insure more effectively the said simultaneous ac tions, while said devices are of the novel format1on, c0nstruct1on and arrangement hereinafter described for effecting said.

counting and timing functions without relying upon any differences or variations between the movement of one part and those -of another part for this purpose. In other words the revolution counter is driven positively while the clock or timing mechanism derives its motion from the positively driven art throu h or by friction gear. and the ands for indicating the number of complete revolutions and the time in which same are carried out are separately carried and actuated by their res I ctive mechanisms and do not rely on any ,lfi'erence or variation that may exist in the. movements of the counting mechanism as compared with those of the timing mechanism for effecting their said respective indications.

In the accompanying sheets of drawings which are illustrative of this invention Figure 1 is a front elevation or face view of the complete apparatus. Fig. 2 is a front elevation (with t e dial removed) of a portion of said apparatus to show certain of the parts hereinafter described. Fig. 3 is a vertical section of the partsshown by Fig. 1 as seen in the direction indicated by the arrow a. 4 is a front sectional eleva- 5 and 6 are front and sectional side elevations showin the formation of a certain part hereinafier described. 1*" 7 is a sectional elevation of a. plate w eel used in connection with the arts shown by Figs. 5 and 6. Fig. 8 is arawing in detail of a key or detachable part hereinafter de scribed.- 1

A indicates the outer casing of the apparatus, B the dial or face indicating the number of revolutions and C the dial or face showing the seconds hand of the-clock. i In accordance with my said invention I arrange a pair 0 worm wheels 2 and 2 to be actuated by a worm 350 that each worm wheel 2 and 2 may rotate its respective ratchet wheel 4 and 4 arranged in conjunction with it, while said ratchet wheels 4 and 4 have other wheels 5, 5 respectively Socured to them so that these wheels 5, may both gear with. another s u'rfwheel 6, by which arrangement'of mec anism the worm 3 whether rotating in one direction or in tion to the gearin wheel 6 in one and the same direction, said worm wheels 2 and 2' in conjunction with their ratchet wheels 4 and 4 which are actuatedby the fatchets 7 and 7 are so arranged as to attain this object since as shown by 4 if eitherof the worm wheels moves in such direction as to carry its ratchet 7 or 7 with it without transmitting motion to its respective ratchet wheel then no motion will be transmitted either to said wheel or to the wheel except through or by the other worm wheel and its wheel. The worm 3 is mounted or formed upon a spindle 8 the outer end 8 of which is made to take into a circular or other indentation made in the center of the axis in dioated so that such shaft will transmit motion to the spindle 8. Or said outer end 8 may have a sleeve secured upon it to fit or take over the shaft whose revolutions have to be indicated in manner common and well known. On this spindle 8 is secured aflange 9 which takes over anti-friction balls 9 runratchet which is rotating in the proper dis. rection to actuate its corresponding ratchet any shaft whose revolutions have to be in.

tion showing the interior mechanism. Figs.

the other direction will always transmit inoning upon a race formedon the casin A as shown by Fig. 3, this flange taking or withstanding any of the pressure or thrust upon said spindle 8 as will be understood.

The spur wheel 6 is of hollow or box shape as illustrated in detail by Fig. 6, so that within the hollow part of said wheel a spring 10 is mounted to take over a square part of the spindle 11 which is the spindle upon which the large hand 12 is mounted. This spring is held by the pin 13 taking through said spindle 11 in order that the resilience of the spring 10 may act upon the wheel 6 and force it against a prepared plate 14 (of the character hereinafter explained) mounted between it and the box or recessed toothed disk 15 for the purpose hereinafter described. As the spindle 8 revolves it transmits motion to the wheel 6 at a speed in unison with it and said wheel 6 by contacting with'the spring 10 which is upon the square part of axle 11 transmits its motion to said axle 11 therefore the hand 12 as it rotates over the dial B will indicate the number of revolutions transmitted to and by the spindle 8. On the axle 11 is mounted the wheel 31 which gears with the wheel 32 carrying the pinion 33 and this pinion 33 meshes with the wheel 34 so that on the hub of this latter may be mounted the hand 35. The wheels 31 to 34 have'such relative numbers of teeth that the hand 12 rotates ten times around the dial while the hand 35 moves only the space between two of the indicating marks on said dial.

As means for indicating the time occupied for a given number of revolutions of the wheel 6, this wheel 6 is arranged to transmit motion to timing or clock mechanism through the medium of the friction disk 15 as hereinafter described. The teeth on the disk 15 gear with teeth in the wheel 16 upon the spindle of which ismounted the wheel 17 gearing with the pinion 18 secured to the spindle of the wheel 19 which wheel 19 through the pinion 20 transmits motion to the pallet wheel 21 which is governed by the usual anchor devices 22 and balance wheel 23, thus by said pallet wheel and its mechanism the rotary motions of the spindle 19 are governed so that according to the adjusting of said governing mechanism each rotation of the spindle will be performed in a given or a known time, hence by placing on the spindle 19 the hand 24 (see'Figs. 1 and 3) the time in seconds or otherwise may be indicated by the figures on the dial C. From this it ,will be seen that the number of revolutions indicated by the hands 12 and 35 (one indicating tens and the other hundreds of revolutions on the dial B) as having been performed in the time indicated by the clock mechanism as by its hand 24, said number of revolutions per minute (or in any other given time as may be found appropriate or desirable) is clearly shown without necessitating the employment of any other timing mechanism in conjunction with the counting devices.

The frictional devices in order to keep same under constant coefficient of friction consist as hereinbefore described of the disk 15 and the surface of the wheel 6 between which are interposed any suitable substance as plumbago, which may be rubbed on a piece of cardboard 14, (see Figs. 3 and 6) or the like, or French chalk or like substances may be placed on said cardboard. 14-. so that the actions of these frictional surfaces as caused through the force of the spring 10 will be kept constant and give the necessary power to drive the clock gearing as above ex plained, with the result that provided such frictional devices tend to drive the clock gearing too quickly then under the actions of the timing or clock mechanism said frictional devices slip, so that the governing of the whole apparatus as to time is efficiently performed. The central shaft 11 has a square opening made at 11 to receive the square end of the key 26, see Fig. 8, in order that the user may be able to bring the indicators or hands back to zero'after use. The

key 26 which is used for this purpose is inits normal position placed in the lower end of the casing as shown by Figs. 1 and 3, where it is held by' the spring actuated pin 27 so that its square end may enter the square end of the pinion 28 which meshes wit-h crown teeth 29 formed on the inner surface ofthe dial C. Thus said key 26 may be employed for bringing the hands 12 and 35 to zero as well as for moving. the dial C to bring its zero point opposite the indicating end of the hand 24:.

' To insure the starting of the clock mechanism immediately the spindle 8 begins to rotate said spindle 8 may be made to have a slight longitudinal movement by leaving its collar 9 clear of the end casin so that a spring may normally force sai spindle 8 against such outer end of the casin at which time an extension or coupling rom said spindle 8 will move into engagementwith the' wheel 23 and prevent its further rotation. On the spindle 8 being pressed into contact with the rotar shaft its engagement with the wheel 23 wil be disconnected and the spring operating said wheel 23 will immediately start said wheel into motion.

,Such being the nature and object of my invention, what I claim is An instrument of the character described having a spindle provided with a free end to be pressed against a rotating member to cause said s indle to be rotated by said member, said spindle having a worm, two worm wheels meshing with said worm, ratchet wheels carried by said worm wheels, spur wheels carried by ratchets engaging with said ratchet wheels, a hollow toothed wheel, and connections for actuating the latter from a shaft on which said wheel is mounted, said said friction toothed wheel. 10 shaft having an angular portion, a spring In testimony whereof I have afiixed my fitting said angular portion of the shaft and signature in the presence of two witnesses. located in said hollow toothed wheel, revolu- CHRISTIAN KORTE.

tion indicating hands actuated by said shaft, Witnesses: a. friction disk adapted to be driven by the SAMUEL HEY, hollow toothed wheel, and a time indicator CHARLEs E. TAYLOR.

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