US348982A - Calendar-clock - Google Patents

Description

A. M. LANE.

CALENDAR CLOCK.

Patented Sept. 14, 1886.

(No Model.)

UNITED STATES PATENT OFFICE.

ALMERON M. LANE, OF llIERIDEN, CONNECTICUT.

CALENDAR-CLOCK.

A pplieation tiled February 23,1856. Serial No. 192,7!7.

1T0 (LZZ 10710711, it 77mg concern.-

Be it known that l, Amrnnos M. LANE, acitizen of the United States, residing at lllferiden, in the county of New Haven and State of Connecticut, have invented certain new and useful improvements in Calendar-Clocks, of which the following is a specification.

My invention relates to improvements in ealemlar-clocks; and the objects of my invention are to provide a convenient device for setting the calendar, and also to so construct the mechanism that the calemlar-poiuter may be set at anytime without interfering with the proper operation oi the calendar.

All of the figures i n the accompanying drawings are on an enlarged scale.

Figure 1 shows a sectional view of a clockease and a rear view of the dial and attached calendar mechanism. Fig. 2 is a front elevation of the twelve-hour wheel, which carries the hour-hand of the timepiece, and to which is attached a point or spur. Fig. 3 is a front elevation of the pinion with which this point or spur engages; and Fig. -iis asectional view on line :v .r of Fig. 1, partlyin elevation, of my calendar mechanism and parts of the clock.

A. designates the dayof-the-month wheel, which is attached to a hollow shaft in the middle of the clock-dial B, to the front end of which hollow shat't is attached the calendarpointer (l.

The ordinary twelve-hour wheel, 1), has attached to it a tripping point or spur, a.

Thel'ront plate, ti, ol' the clocl-z-movement is shown in Fig. t.

1G designates an angle-lever, which is pivoted at I), Fig. 1, to the dial-back. A spring, 0, which is secured to the dialback, presses upon the lower end of this lever 16, so as to hold it in position, as shown in Fig. 1. The other end of. the arm 1*) bears against the under side of the slide 0, which slide is operated by a handle, 0, the body of which ext-ends through a hole in the top of the case F. )lfounted upon a stud on this angle-lever E is a pinion, f, having eight teeth, four of which extend across the whole thickness of the edge of the pinion, while the other four are so cut away as to extend only partly across the edge of the pinion, thereby producing a pinion which has eight teeth in one plane and only four teeth in another plane. This particular .CATZQLN forming part of Letters Patent No. 348,982, dated September 14,1886.

(No model.)

pinion, although new, is the invention of other parties, and not claimed by me. This pinion is kept from accidental rotation by means of the spring g; This pinion is so placed on the lever E that the eight teeth are in a proper plane to be operated upon by the tripping spur or point a, while the portion of said pinion having only four teeth is in the same plane as the day-of-the-month wheel A, with which they engage. This day-of-the-month wheel is held against accidental rotation by means of a spring, 7.:.

At the lower end of the angle-lever E there is attached a spring-hook, n, Fig. 1.

During the month the spur or point a eugages once in twelve hours with the pinionf, and moves the same one tooth, thereby impart-ing to the day-of-the-month wheel a movement equal to one of its teeth for every two movements of the pinion f. At the end of a short month the pointer can be turned forward a proper distance by depressing the handle d, thereby moving the angle-lever E on its fulcrum and first disengaging the teeth of the pinion f from the teeth of the day-of-the-month wheel A, after which the spring-hook a strikes a tooth of the day-of'the-month wheel, and as the angle-lever moves on the day-of'the-month wheel is moved a space which represents one day. Upon releasing the handle the spring 0 restores the angle-lever E to its former position, thespringk being small enough to hold the day-of-the-month wheel against rotation while the point of the spring-hook n is moving back over the tooth on said day-of-themonth wheel. By depressing the handle as many times as the number of spaces or days that it is desired to move the pointer forward the calendar can be set to indicate the proper day of the month. The pinionfdoes not move at all on its axis when the calendar is thus set forward, and thereforeitis immaterial whether the pointer is turned forward in the morning or afternoon. If it is at first set properly so as to make the changes at midnight, it will continue to do so alter the pointers have been turned forward by the setting mechanism, no matter what timeof day the pointer is thus set.

I have herein shown my mechanism as having the peculiar pinion f mounted upon the angle-lever E; but my invention is applicable to other forms of calendars-that is to say,

that a wheel revolving once in twenty-four hours instead of twelve might be arranged in like manner upon the angle-lever E-the main feature of the invention residing in mounting 5 the wheel which connects with the day-ofthemonth wheel upon this lever, whether that wheel revolves once in twelve hours or at other times.

I claim as my invention- In a. calendar-clock, the combination of the day-of-the-month wheel, the angle-lever bearing the spring-hook for engaging the teeth of said wheel when the angle-lever is moved, and the wheel which drives the day-of-the-month wheel mounted upon said angle-lever in proper 1 5 position to engage said day-ofithe-momh wheel when said lever is at rest, substantially as described, and for the purpose specified.

ALMERON M. LANE.

Witnesses:

J AMns SHEPARD, JOHN EDWARDS, J r.

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