US146809A - Improvement in watchmen s time-check clocks - Google Patents

Description

Patented Jan. 27. i874.

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@57m/m l lUNITED STATES VPATENT OFFICE.

lVILLIAM DIEBEL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOE OE ONEn HALF HIS EIGHT TO NAPOLEON XV. VILLIAMS, OF SAME PLACE.

IMPROVEMENT IN WATCHMENS TIME-CHECK CLOCKS.

Specification forming part of Letters Patent No. 146,809, dated January "27, 1874; application tiled March e5, 1873.

To all whom yit' may concern:

Ile it known that I, WILLIAM DiEnEL, of the city of Philadelphia and State of Pennsylvania, have invented certain Improvements in rlell-Tale Clocks, of which the following is a specitication:

My invention relates to the combination of a series of lever cut-offs, with a revolving dial. and tooth-wheel in connection with the honr hand shaft in such a manner as to provide for the action of the levers at regular intern vals of time when moved by the watchman, so as to indicate that he has made all his trips regularly, or indicate any failures that may have occurred, as hereinafter fully described.

Figure l is a front elevation of an ordinary clock with the improvements attached. Fig. 12 is a reverse view of the revolving dial (l, toothed wheel (l, and eut-off l). Fig. 3 a section at the broken linel .r .fr ot' Fig. L.

Like letters in all the figures indicate the same parts.

A is the fase of an ordinary clock. ll is the ordinary stationary dial. (l is a revolvin dial fast on the liourliand shaft, so as to be carried around with it in its regular movement. This plate is iigured regularly from one to twelve, as seen in Fig. l., and has subdivisions, as may be desired. ln the present case there is one division between each of the adjacent divisions to mark the half hours. ',lhere are a series of pertorations, a, around the circle of iigurcs-one to each division and subdivision. Arranged in relation to these per- `l'orations on the rear side ofthe supplemental dial-plate (l there are lever cut-offs l), hung on the pins b. The cut-oifs have projections c at their outer ends, so that when each division and sulnlivision comes in regular order in the running of the clock, under the figure i12 of the stationary dial, if the watchman has come around at the right time, by bearing on the head d, of the vertical rod E the outotf l) beneath the rod is turned on its pivot by the pressure of the lower end of the rod on the projection c, so as to close the contiguous perforation e. The rod E slides freely in a suitable opening in the case A, and is provided with a wire-spring, F, to hold it in its elevated position; but, if the watchman should fail to come in time, the projection of the cut-off having passed the vertical rod E, the perforation remains open, as seen at y, and tells the tale that he was remiss in his` duty at that time. On the rear side of the revolving dial (l there is a toothed plate wheel, G, which is provided with a pin, c, that pro jects through an oblong perforation, j', in said dial. rlhe inner ends of the cutoft's l) have teeth, g, which are arranged between the teeth y h of the wheel (l. The spaces between the teeth of the wheel are sufficiently large to admit of the pla-y of the teeth of the cut-offs in the movcmentsof the latter, so that the Iixcd position of the wheel shall not be disturbed thereby.

Then the watclunan goes on duty the revolving dial is so set as to have the starting time in range with the figure l2 on the stationary dial, and if any of the perforations e should be closed, the pin o of the wheel (l is pressed so as to bring it tight against the end of the oblong perfora-tions f at the point il, whereby the teeth g of the cut-offs, that do not close the corresponding perforations ofthe dial, are pressed against it by the teeth h of the wheel, so as to cause the sliding of the out otfs past the perforations. Then the pin c is given a reverse movement, so as to come against the other end of the perforations f at the point 2 to give the wheel a partial reverse turn, and thereby bring its teeth out of the way oftthe free movement of the teeth of the cut-offs. There are stationary pins 'i yi, which project outward from the revolvin g dial C/,for the operator to rest his finger on when he moves the wheel G.

The hour-hand H and minute-hand I are on aplnopriate shafts, in the ordinary manner.

l. The combination of the revolving dial (l, toothed wheel. (l, cut-oit' D, and rod E, with the hour-hand shaft ot' a clock, substantially in the manner and for the purpose above de scribed.

2. rIhe combination, of the pin c of thewheel G, with the dial (l, by means of the oblong slot j', substantially as and. for the purpose set forth.

WILLIAM DIEBEL.

Witnesses:

STEPHEN UsTIcIi, Tnon'as J'. BEwLEv,

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