USRE12360E - Reissued june - Google Patents

Description

No. 12,360. REISSUED JUNE 20, 1905. W. I. FOLLETT.

TIME STAMP.

APPLIOATIQN FILED MAY 18 1905.

3 SHEETSBHEET 1.

No. 12,360. REISSUED JUNE 20, 1905.

W. I. FOLLBTT.

TIME STAMP.

APPLICATION FILED MAY 13,1905

s SHEETS-SHEET 2.

REISSULED JUNE 20, 1905.

W. 'I'. FOLLETT.

TIME STAMP. APPLICATION FILED MAY 13.1965.

3 SHEETS-$HEET s.'

9%W- RNQFM 'MIN W/ NESSES:

UNITED STATES Reissued June 20, 1905.

PATENT OFFICE.

TlME-STAM P.

SPECIFICATION forming part of Reissued Letters Patent No. 12,360, dated June 20, 1905.

Original No. 777,890, dated December 20, 1904. Application for reissue filed May 13, 1905. Serial No. 260,350.

To a, whom it may concern:

Be it known that I, VVILBUR I. FOLLETT, a citizen of the United States, residing in the borough of Brooklyn, city of New York, and State of New York, formerly of Mendham, county of Morris, State of New Jersey, have invented certain new and useful Improvements in Time-Stamps, of which the following is a specification.

The objects of this invention are to improve and cheapen the construction of apparatus of this class, to make it accurate and certain in its operation, and while providing for protection of the time-movement or clock-train from the shocks and jars incident to the use of the time-stamp to positively control the hour, minute, and meridian wheels by the clocktrain. Other organizations of the prior art have had the same objects in View, and this invention comprises improved organizations hereinafter set forth and claimed.

In the accompanying drawings, Figure 1 is a rear elevation; Fig. 2, an elevation from the rear with the rear plate and parts in front thereof removed; Fig. 3, a front elevation with the front plate removed; Fig. 4:, a side elevation; Fig. 5, a front elevation; Fig. 6, a plan view. Fig. 7 shows a development of the hour, minute, and meridian wheels. Fig. 8 is a section on the line A A of Fig. 2, and Fig. 9 is an enlarged detailed view of the escapement of the hour-wheel.

This time-stamp mechanism is to be inclosed in a suitable casing provided with an appropriate platen and die-plate and the ordinary rotating part or parts containing special words, such as Received, Answered, &c.; but these several features have not been illustrated, as they are common and well known, and illustration thereof would only tend to multiplication of sheets of drawings.

As shown, the frame comprises a front plate a, a rear plate 6, and an intermediate plate 0, all connected by suitable posts or transverse rods and serving for the supports and bearings of the various parts. A springbarrel cl, having at one side a gear a, surrounds a winding post or shaft f and contains a flat coiled spring g, one end of which is attached to the shaft f and the other to the drum, Fig. 3. The reaction of the spring thereof tends to impart rotation to the shaft f in one direction and to the drum (2 in the reverse direction. The gear meshes with a pinion it on a shaft 2', carrying a larger gear is, that meshes with a pinion Zon the minuteshaft m of the time-stamp device. On the rear end of the shaft 172 is loosely mounted the toothed escape'ment-wheel n, and also fast on this end of the shaft in juxtaposition to the escapement-wheel is the ratchet-wheel 0, engaged by the spring-controlled pawl 19, pivoted on the side of the escapement-wheel, the arrangement being such as to permit rotation of the shaft and ratchet-wheel in one direction independently of the escapemeut-wheel n. The minute-wheel g is fast on the shaft m, and alongside of it, mounted as hereinafter described, arethe meridian-wheel r and the hour-wheel s.

The shaft f, to which the inner end of the coiled mainspring is connected, is rotated in the direction indicated by the arrow and has loosely mounted upon its rear end the gearwheel 6 and adjacent to it and fast on the shaft f a ratchet-wheel u, engaged by a pawl o, pivoted on the side of the gear 6 and pressed against the ratchet by a spring w. This is an ordinary winding arrangement. The gear 25 meshes with the pinion w on a shaft y, having also fast upon it two gear-wheels z and 1, which engage gears 3 4:, attached to the sides of the meridian and 'hour wheels rs, Figs. 4 and 8. The meridian-wheel r is mounted upon a hub projecting from the inner face of the back plate 6, while the hour-wheel is mounted upon a similar hub projecting from the rear face of the intermediate plate 0. The minutewheel shaft mof the time-stamp passes through both of these hubs, and between them is located the minute-wheel g, fixed on the shaft m. The meridian and hour Wheels are therefore separately driven, but from the same end of the mainspring, whose reaction rotates the drum d, and the minute-wheel is separately driven from the same mainspring, the inner end of which effects rotation of the shaft f. As indicated by the arrows, the meridian and hour wheels revolve in one direction and the minute-wheel in the opposite direction. As

' shown in Fig.7, the hour-wheel is provided with numerals from 1 to 12 and from 1 to 12 again. The'meridian-wheel is provided with meridian-letters A. M., P M., and M., there being one such provision of meridian-letters for each numeral 0n the hour-wheel opposite which they are respectively arranged.

On a suitable shaft extending between the front plate a and the intermediate plate 0 are mounted the month-wheel 5, the two daywheels 6 7, and the yearwheel 8. These wheels are to be provided with the usual detent or bank pawls working in toothed wheels at their sides and may be operated by hand when required or otherwise, as may bedesired. Since the characters they must carry are few in number, they are preferably made of much smaller diameter than the hour, minute, and meridian wheels.

At the front concentric with the minutewheel shaft m is the usual clock-face 9, at the end of the minute-wheel shaft is the minutehand 10, and on the bushing 11, surrounding theend of this shaft, is the hour-hand 12. The bushing frictionally embraces the shaft and carries a gear 13, connected through a gear and pinion on a short stud-shaft with a pinion 14: on the shaft m, this being the ordinary trainfor driving the hour-hand. The front end of the shaft 1 is provided with a thumbpiece 15, by which it may be rotated to simultanously set the hour and meridian wheels. The minute-wheel may be set by rotation'of the minute-hand 10. l

The clock-movementdesigned to be inclosed in the casing of this apparatus (which, however, is not shown) is to be located at the rear of the mechanism described and is to directly control the minute-wheel escapement. The teeth of the minute escapement-wheel a are inclined on the rear side and on the front or leading side are straight in radial lines extending from the axis. This is the preferred construction. The escapement-lever 16 has the usual pallets 17 18 at its ends that engage the teeth of the minute escapementwheel and is mounted on a rock-shaft 19, from which projects a downward-extending arm 20, forked or slotted at its lower end, and in the fork or slotof which works a pin 21 in the face of a part or wheel 22, that is rotated once in every two minutes by the clock-train, which is not shown, except that in Fig. 4 the shaft 23, driven by'the clocktrain, is indicated. The rotation of the shaft 23 and wheel 21 serves to carry the downwardly-extending arm 20 to the right-for instance, as viewed in Fig. l-until the upper pallet of the escapement disengages the tooth of the wheel, the lower pallet then catching the adjacent tooth in the rear thereof, so that the minute-wheel is advanced but one step. Continued rotation of the part or wheel 22 finally carries the arm 20 to the left, permitting the lower pallet of the escapement-lever to disengage a tooth of the wheel, whereupon the upper pallet catches the next tooth adjacent to it, the wheel having.

again moved but one step.

Projecting from the face of the ratchetwheel 0 on the rear end of the minute-wheel shaft m is a pin 24:, that comes against the tail 25 of a pivoted escapement-lever 26, having pallets 27 28, that engage the teeth of the hourvescapement-wheel 29, loosely mounted on the rear end of the shaft y and connected with the shaft through a ratchet wheel 30, fixed on the end of the shaft and engaged by a spring-pressed pawl 31, pivoted on the side of the escapement-wheel. The depth of the pallet 27 is such that when the pin 24: lifts it by acting on the tailpiece 25 as the minutewheel comes into position to print 59 the pallet is not quite lifted out of engagement with the tooth against which it lies, and con sequently as the minute-wheel comes into position to print 60 or 00 the further movement of the pin 2 L serves to disengage pallet 27 from the tooth of the wheel. The work of lifting the pallet 27 through the desired range of movement is divided between the two steps of the minute-wheel in turning up to 59 and 60 or 0.0. The other pallet of the escapement-lever 26 is pivoted' andcontrolled by coil or other spring 32, so that when the pallet 27 disengages the wheel the spring-pallet 28 is sufficiently advanced to catch the tooth traveling toward it and yields sufficiently to permit such rotation of the escapement-wheel as to permit the passage of a single tooth on each actuation of the escapement-lever, which occurs once in each revolution of the minute-wheel.

Experience has demonstrated that the organization above described is a practical and eflicient one for accomplishing the ends sought by this invention. The construction may, however, be varied in detail by those skilled in such matters without departure from the invention.

I claim as my invention 1. In a time-stamp, the combination of a driven minute-printing wheel, its shaft, its escapement-wheel loosely mounted on the shaft, a ratchet-wheel fixed on the shaft, a pawl connecting the escapement-wheel and the ratchetwheelfor simultaneous rotation in one direction, a driven hour-printing wheel, its escapement-wheel, a toothed escapement-lever cooperating with the escapement-wheel of the minute-printing wheel, a time-actuated part that positively actuates said escapement-lever, a toothed escapement-lever cooperating with the escapement-wheel of the hour-printing wheel, and a projection on the ratchetminute-printing wheel, a ratchet-wheel in fixed relation thereto, an escapement-wheel positively connected with the ratchet-wheels to rotate in one direction only therewith, an hour-printing wheel, a ratchet-wheel in fixed relation thereto, the escapement-wheel of the hour-printing wheel mounted to loosely rotate and positively connected with the ratchet- Wheel to rotate therewith in one direction only, a time-controlled mechanism coo'perating with the two escapement-wheels, a clockface, having hour and minute hands, ap operative connection between the minute-hand and the minute-printing wheel by which the latter may be set by the former, and a shaft for setting the hour-printing wheel.

3. In a time-stamp, the combination with the driven minute-printing wheel, its escapement-whee], and an independent spring-drum whose reaction tends constantly to rotate both wheels, of a toothed escapement-lever cooperating with the escapementwheel of the minute-printing wheel and a part driven by a clock-train operatively connected with the escapement-lever by a sliding crank connection to rock it positively in both directions.

4:- In a time-stamp, the combination with the driven minute-printing wheel, its escape: ment-wheel and an independent spring-drum whose reaction tends constantly to rotate both wheels, of a toothed escapement-lever cooperating with the escapement-wheel of the minute-printing wheel and an arm projecting therefrom having a slot in its end, and a cranl -pin working in said slot and actuated by a clock-train.

5. In a time-stamp, the combination with a driven minute-printing wheel, its escapement-wheel, and an independent spring-drum whose reaction tends constantly to rotate both wheels, of a toothed escapement-lever cooperating with said escapement-wheel and havinga slotted extension, and a crank-pin engaging said slot and rotated by a clock-train once in every two minutes, whereby the escapement-lever is positively actuated each minute but in opposite directions.

6. In a time-stamp, the combination of a driven minute-printing wheel, its escapementwheel, a driven hour-printing wheel, its escapement-wheel, a toothed escapement-lever cooperating with the escapement-wheel of the minute-printing wheel, a time-driven part positively actuating said escapement-lever, a toothed iascapementlever cooperating with the escapement-wheel of the hour-printing wheel, and means whereby the latter escapement-lever is actuated once in each revolution of the minute-printing wheel.

7 In a time-stamp, the combination of a driven minute-printing wheel, a driven hourprinting wheel, their escapement-wheels, a toothed escapementlever cooperating with the minute escapement-wheel, a time-actuated part actuating said escapement-lever in both directions, an escapement-lever for the hour escapement-wheel, having two teeth, one fixed and the other pivoted for the purpose described, and means whereby the latter escapement-lever is tripped or moved once in each revolution of the minute-printing wheel.

8. In a time-stamp, the combination of the frame, hour and meridian printing wheels, op-

posite concentric separate hollow bearings for each of said wheels rigidly secured to the frame, a minute wheel shaft extending through said hollow bearings, a minute-printing wheel fixed to the shaft and located between the hour and meridian wheels, and means for intermittently rotating the three wheels.

9. In a time-stamp, the combination of the hour and meridian printing wheels, separated hollow bearings upon which they rotate, a minute-printing wheel, a driving-mainspring, driving devices connecting one end of the spring with the hour and meridian wheels and driving devices connecting the other end of the spring with the minute-wheel, whereby the reaction of the spring at both of its ends tends to drive the minute-wheel in one direction and the hour and the meridian wheels in the other direction. I

10. In a time-stamp, the combination of a rotatable printing-wheel, a rotatable ratchetwheel in fixed relation thereto, an escapementwheel loosely mounted concentrically to said ratchet wheel, a connection between the ratchetw heel and escapement-wheel by which the ratchet-wheel is driven positively in one direction with the escapement wheel, and time-controlled escapement mechanism cooperating with the escapement-wheel.

In testimony whereof I have hereunto subscribed myiname.

WILBUR I. FOLLETT.

Witnesses:

L. F. BROWNING, E. F. WrcKs.

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