US296675A - Winding device foe clocks - Google Patents

Description

(No Model.) v

P. B. GASSIDY.

WINDING DEVICE FOR CLOCKS.

Patented Apr. 8, 1884.

lqvmflm fimaawlu Y W A? 39 PETER B. cAssmY, on rrrrsnunc, rnnnsrLvAniA, ASSIGNOR ro HIMSELF, rrionAs nn Azvnv, AND G. FRANK KIERSON, ALL or sAMn rLAcn.

WINDING DEVICE FOR CLOCKS.

SPECIFICATION forming part of Letters Patent No. 296,675, dated April 8, 188%.

Application filed December 10, 1883. (No model.)

To aZZ whom it may concern.-

Be it known that I, Pn'rnn B. CAssInY, of Pittsburg,' in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Devices for inding Clocks; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a front view of a clock provided with my improvement. Figs. 2 and 3 are front and side views of a portion of the move ment, showing an alarm-bell, which indicates when the clock is wound up.

Like letters of reference indicate like in each.

The object of my invention is to'provide a permanently-attached winding device which is especially fitted for clocks placed overhead.

I will nowproceed to describe myinvention, so that others skilled in the art to which it appertains may apply the same.

Referring now to the drawings, (4 indicates an ordinary clock-movement, showing the usualwinding arbororpin, b. Mountcdloosely on this arbor isa lever, c, and also mounted on the arbor, on one or both sides of the lever, is a ratchet-wheel, cl, rigidly attached to the arbor.

Pivoted to the lever 0, so as to engage with the ratchet d, is a pawl, c, and attached to the clock-frame at a is a spring, 5 the other end of which is connected pivotally to one end of a bent lever or link, It. The other end of the link it is pivoted to the rear arm of a lever, ?I, which in turn is pivoted to the lever c. The forward end of the lever engages the rear end of the pawl e by means of a notch or recess, e. The outer end of the lever c is provided with a spring winding-barrel, 0, upon which is wound a tape or cord, 7;, provided with a ring, it. The arbor Z1 is provided with parts the usual ratchet-wheel, b, which is found in all clock-movements of the character shown. The teeth of the ratchets at and b are preferably made of the same number and are similar in form and size, to obtain uniformity of motion and action in winding uplthe clock, the pawls which operate in connection with said ratchet-wheels operating simultaneously in corresponding teeth of the ratchets.

Thus constructed, the operation of myimprovement is as follows: The clock being placed overhead, a rod with a suitable book is used to engage with the ring is and draw down the tape 7r. Then by means of the tape 7: the lever 0 receives its downward motion. As it descends, it compresses the spring 9, causing the link h to act upon the lever 12 and the latter to throw the pawl a into gear with the ratchet-wheel d, the latter being fast on the arbor b, and causes it to turn in the direction necessary for winding up the clock. "When the limit of the downward motion of the lever c has been reached, the tape 7c is slackened and the lever permitted to rise, being thrown up by the spring 9, the pawl 6 during such backward movement slipping over the ratchet d and allowing the arbor to remain at rest. When the lever 0 reaches its highest point, the projection or washer h on theend of the link it strikes the lower side of the lever t, throwing it up and throwing the pawl 0 clear out of range of the teeth of the ratchet d, so that when the lever c is at rest the pawl e is not within the range of the ratchet (Z.

For the purpose of indicating when the clock is wound up, in order to prevent the lever 0 being drawn down after the winding is com pleted, and thereby endangering the safety of the parts, I have provided a bell, m, which is attached to a suitable part of the frame of the clock, and I form on one edge of the outer leaf of the mainspring n a fin or projection, 72, which, when the spring is being wound up, will come in contact with the tail of the clapper an of the bell andretract it. YVhen the spring is full wound up, the tail of the clap per will slip past the finn, releasing the clap per, which, being then drawn down by the spring of, will strike the bell, thereby giving the signal to stop winding.

In applying the last-named devices to a clock having a weightor weights instead of a mainspring, the bell mis placed on the frame of the clock, with its clapper extending in the path of the weight Z, and in a position at or near the upper limit of the movement of the weight, as shown in Fig. 4. Then when the clock is wound up the weight I, striking the bell-spring m rings the bell; or it may strike the end of a clapper-lever and cause the latter to strike the bell and give a signal for stopping the winding operation.

The advantages of my improvement are that the clock is thereby provided with a permanent winding attachment, which obviates all the discomfort and inconvenience arising from the loss of the clock-key, and by the use of the spring-barrel c and tape is the winding appatus is put beyond the reach of children and other persons who are apt to tamper with the clock.

I claim my invention as applied to either spring or weight clock-movements. It does not require any change in the construction of the clock, but may be applied to those nowin use as well as to new ones and can be applied either in front or behind.

What I claim as my invention, and desire to secure by Letters Patent, is

1, In clock-winding mechanisms, the combination, with the winding-arbor having a ratchet-wheel secured thereto of a windinglevcr pivoted on the arbor, a pawl pivoted on I the winding-lever, and adapted to engage with the ratchet, a pawl-lever pivoted on the winding-lever for actuating the pawl, and a spring connected with the pawl-lever by an intermediate link for actuating the pawl-lever and the return-throw of the winding-lever, substantially as and for the purposes specified.

2. The combination of the winding-arbor ratchet, self-retracting lever, releasing-pawl, cord, and spring-barrel c, substantially as and for the purposes described.

3. In a clock-movement, the mainspring having a tappet projection, in combination with a bell-clapper adapted to be actuated by the projection on the mainspring, and a bell arranged in such position as to be sounded through the medium of said devices when the movement is wound up, substantially as and for the purposes described In testimony whereof I have hereunto set my hand this 6th day of December, A. D. 1883.

PETER B. OASSIDY,

Witnesses:

W. B. CORWIN, THOMAS B. KER.

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