US828209A - Stop counting-machine. - Google Patents

Description

No. 828,209. PATENTED AUG. 7, 1906. G. HOEPNER.

STOP COUNTING MACHINE.

APPLICATION FILED NOV. 22. 1905.

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'H M a i c u ii If; P I :0 8; 1 s50 25 r J i @mvw Specification of Letters Patent.

Patented Aug. '7, 15306,

Annli'nntion filed November 22,1905. Serial "lain. 288,581,

improvements in Stop Couiiting-Tdaehines,.

oi which the following is a description, .relcreiice being bad to the accompanying drawings, and to the letters ol' rel'ereiice iiiailied thereon.

The principal object Of the present invention is to provide a device for positively controlling a number of operations oi" any mechanism or machine of the i'iumber of revolutions of a shaft or measuring or weighing devices, so that when said mechanism is operated a predetermined number of times it will be 'iositively stopped and no further movement can take place until the stop counting device is readjusted.

Another object of the invention is to provide a device of this character which shall be of simple and eliicieiit construction and which will permit oi adjustment within a wide range of a number oi operations oi the mechanism which it controls.

The invention therefore consists in. the matters hereinafter described, and referred to in the appended claims.

The invention is illustrated in the accompanying drawings, in which Figure l is a plan view oi a stop couiitiiigmachine constructed in accordance with the invention. Fig. 2 is a plan view showing the casing in section. Fig. 3 is a transverse sectional view of the same along the line 2 of Fig. 12. Fig. i: is a similar view showing the position of the parts at the completion of a counting operation. Fig. is a rear elevation of the device with the casing in section. Fig. 6 is a detail view, on a large scale, of the transfer ratcliets and pawl; and Fig. 7 is an elevation. oi the same, the operatiiig-lcver being shown in section.

Referring to the drawings, the casing a is formed of any suitable material and is arranged for the support of the shaft ('2, to which is secured a GUL11iiLiiig-dl1Uii d, the periphery of which is a raised helically-disposed rib the eonvolutions of which are separated by the helical groove i. This rib is provided with equidistant graduations (.2 iyiiig nuiiiertls arranged, in the present instance, in

F multiples of twenty-five, and twenty-live oi such graduations sufficient to cciiipletely encircle the drum. To the hub of this drum, which is locked to the shaft by a pin 8, is secured a ratchet-wheel f, having twenty ri e i teeth, which may be engaged by a pawl A", secured to a pin Ir, carried by an operating- 1 lever j, receiving motion from any suitable l mechanism. The lever extends outside the i casing, and its inner end is, connected to one eno of areturiiiiig-spring Mounted loosely on the shaft 1') is the hub of a units-disk c, hav- 2 ing on its periphery numerals trom one to twenty-live, inclusive, and to this hub is cured a rttclietwvheel e oi" a diameter seinewhat greater than that oi the ratchet-wheelf. This ratchet-wheel has twenty-live teeth arranged to be engaged by pawl is, also mounted on the pin It, moving with the pawl k. During the operation of lever the pawl g ll: will engage a tooth ol' the ratcliet--wheel e at each movement; but the pawl 1' 3" is held lroin. engagement with its ratchet-wheelfuntil the ratcliet-u'heel c has made one complete revo-- lutioii, whereupon the pawl lit descends into a deep notch I/ between two of the teeth. of t i ratchet-wheel c, and the pawl it" is allowed a o move into contact with and rotate the ratcliet-wlicelfto the extent oi a single tooth, this constituting the transfer inechai'iisin be tween the pi'iiiiai'y and secondary indicators c and (1. The two ratchet-wheels are frie tioiially held by springs h i, secureiil to the casing by means ol screws u- 0. as shown in Figs. 3 and 4.

in order to prevent either ratchet-wheel from advancing more than a single tooth at each operation, as from a sudden pull on the lever j, the pawls are arranged to engage with. a brake or stop-blocl a at the completion of each moveme'nt. The casing is provided with bearings for the reception of a shaft 72, which is non-circular in CIGSS-SOUtiOli within the casing and carries a slidable catch 9 in the form of an arm the free end of which is bilurcated to embrace the helical rib of the drum a and is held in engagement therewith by a spring in, which. tends to more the arm. against the drum. The outer end of the shaft a arries a lever e, which when moved by the dropping of arm ,1 iroin the rib moves from the dotted-line position of l ig. -l o the full-lineposition in the same figure and stone or disconnects the mechanism under its control. This lever carries an operating-handle 0 to facilitate readjustment of the arm 9 after each operation. the shaft 1) is an adjusting-arm g, held to the shaft by a pin 1, and on the extended hub of l l l the primary disk 0 is secured a knob p, this 1 knob permitting preliminary adjustment of the members c and d in accordance with the number of operations required of lever to move the end of the rib of drum d from under the arm g. i

In the operation of the device the members 0, d, and g are adjusted in such manner as to determine the number of operations necessary to accomplish the movement of the rib from the arm g, the numbers of said members being visible through a suitable slot through the casing, as shown in Fig. 1. When the lever j has been moved the predetermined number of times, the rib moves from the arm' ,1, and the latter in moving inward toward the center of the drum will move lever 0 to the position 0, (shown in Fig. 4,) and thus stop, disconnect, or otherwise operate on the mechanism which the device controls.

Having thus described my invention, what I claii'n as new, and desire to secure by Letters Patent, is-

1. In a device of the class described, a revoluble drum having a helical rib, a controlling device arranged to engage said rib and adapted to receive movement when the rib passes from engagement therewith, and means for imparting a step-by-step movement to said revoluble drum.

2. in a device of the class described, a revoluble member having a helical rib provided with graduations bearing designatingmarks, a controlling member engaging said rib, and receiving movement after a predetermined number of operations of said member, and means for imparting a stepby-step movement to said member.

3. In a device of the class described, primary and secondary indicating members, the secondary member having a helical rib, a pair of ratchet-Wheels connected to the memi l l l l 1 l 1 1 hers, a pawl-operating bar, pavvls carried thereby, and arranged to transmit movement to the 'atehet-Whecl, the ratchet-Wheel On the outer end of l of the secondary member receiving a single step movement after each complete rotation of the ratclmt-ivhcel of the primary member, and a controlling member engaging the rib and receiving motion al'tdr a predeterinined number of operations of said secondary member.

4. In a device of the class described, primary and secondary indicating members, each of which is adjustable independently of the other, a helical rib carried by the secondary member, a controlling device bearing against the rib and movable when the end of the rib is reached, mechanism for operating the primary member, and a transfer mechanism for imparting movement to the secondary member at the end of each complete rotation of the primary member.

5. In a device of the class described, 9. casing, a shaft supported thereby, a drum secured to the shaft and having a helical rib provided with graduations, means for adjusting said drum, a rock-shaft, an arm car ried thereby and having a bifurcated end embracing the rib, a spring tending to force the arm against the rib, a controlling-lever carried by the ro(- kshaft, a primary disk also having graduations, said disk being mounted on the main shaft and being adjustable independently of the drum, ratchet-wheels scoured to the drum and dish, the ratchetwhecl of the primary disk being of larger diameter than that of the dr 1111, an operating lever, and pawls carried by said lever and arranged to engage the ratchet-Wheels, the larger Wheel having a deep notch to permit 1 contact of the pawl with the ratchct-wl'ieel of the drum after each complete rotation of the primary disk.

In testimony whereof l afiiX my signature inpresence oi two Witnesses.

(llCOltt-lll llfil llhiilit Witnesses:

C. F. Snnmvrcrr, John E. /Vnrrn.

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