US1394957A - Ship's-bells clock - Google Patents

Description

F. x. WEHRLEQ SHIP'S BELLS CLOCK. APPLICATION FILED MAY 4, I921- 1,394,957, I Patented Oct. 25, 1921 2 SHEETSSHEET l.

F. X. WEHRLE. SHIPS BELLS CLOCK. APPLICATION FILED MAY 4, 1921.

Patented Oct. 25, 1921. 7. a.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

FRANK X. WEI-IRLE, OF THOIIASTON, CONNECTECUT, ASSIGNOR TO THE SETH THOMAS I CLOCK 00., OF THOMASION, CONNECTICUT, A CORPORATION.

SHIPS-BELLS CLOCK.

Application filed May 4, 1921.

To all 20 710m it may concern.

Be it known that 1*,FRANK X. d/ nrrnnn, a citizen of the United Sta es, residing at Thomaston, in the county of Litchfield and State of Connecticut, have invented a new and useful Improvement in Ships-Bells Clocks; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characers of referencemarked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this application, and represent, in

Figure l a view in rear elevation of a ships bells clock-movement embodying my invention with its parts shown immediately after their release for striking six bells.

Fig. 2 a view thereof, with the parts shown in the positions due to them after six bells" have been strucln Fig. a plan view thereof.

i a view corresponding to Fig. 1, but showing the parts in the positions due to them after striking seven bells.

Fig, 5 a detached perspective view of the rack-lever.

6 a corresponding view of the ships bells-lever.

Fig. 7 a corresponding view of the ships bells-cam.

My invention relates to an improvement in ships bells clocks of the rack-and-snail type, in which the bells are struck in pairs, the object being to produce a reliable clock of the character described, constructed with particular reference to reducing the number of parts, pertaining to the ships bells mechanism, to the minimum.

l ith these ends in view, my invention consists in a rack-and-snail ships bells clock in which the bells are struck in pairs and characterized by having a ships bells-lever pivotally mounted upon the rack-lever and coacting with a ships bells-cam timed and arranged to nullify one stroke of the hammer at the half hours.

My invention further consists in the construction and arrangement of parts as will be hereinafter described and pointed out in the claims.

In carrying out my invention, as herein shown, I employ a ship bells-lever 10, pivotally mounted by a pivot 11 upon a racklever 12 provided at its outer end with a hub 13 by which it is loosely mounted upon the Specification of Letters Fatent.

Patented Oct. 25, 1921.

Serial No. 466,777.

projecting rear end of the shaft 14 of the warn-lever 15, the bent inner end 16 of which coacts in the usual manner with a stop-pin 17 in the fifth wheel 18 of the strike-train, which may be of any suitable construction and arrangement. The said ships bellslever is formed with a vertical slot 19 receiving a headed rivet 20 carried by the rack lever 12 and limiting the rocking movement of the lever 10 upon its pivot 11. The said lever 10 extends beyond the inner end of the rack-lever 12 to the opposite edge of the rear movement-plate 21, and is bent to form a cut-out finger 22, which coacts with an upstanding cut-out hook 23 provided with a hub 2% by means of which it is mounted upon the projecting rear end of the hammenshaft 25, which carries the hammer-arm 26, which is furnished with an adjustable hammer 27. A stop-pin 28, in the rear movement-plate 21, is positioned to engage with the lower edge of the outer end of the ships bells-lever 10 to limit the downward movement of both levers. A ships bells-cam 29, directly coacting with the under edge of the ships bells-lever 10 at the point thereon (Fig. 6), is arranged to successively present one of its flat clearancefaces 31 to the said lever on the half hours and one of its high-points 32 on the hours. As shown, this cam is a three-point cam and timed to make a complete revolution once in three hours, being located at the inner end of the sleeve 33 of the ships bells dialwheel 34, which is revolved once in three hours by a minute pinion 35 upon the projecting rear end of the center-shaft 36. The said wheel 34 carries a pinion 37 meshing into and driving an hour-wheel 38 turning upon the rear end of the center-shaft and carrying a snail 39, the periphery of which is divided into three corresponding series of steps plotted on the plan of ships bells and coacting with the pointed finger l0 of the raclccontrolling arm ll of the rack-arm 42, which rock upon a stud 43 and is provided at its upper end with a rack let, the teeth of which are entered by the count-hook d5 of the rack-lever 12. The teeth of the rack are successively engaged for lifting the rack by means of the usual gathering-pin 46 in a gathering-hub 47, mounted upon the projecting rear end of the shaft 48 of the fourth wheel 49 of the strike-train. The rack-lever 12 is also provided with the usual stop-finger 50, which is bent at a right angle and extends forwardly through a slot 51 in the rear movementplate 21 into position to engage with the stoppin 17 upon the fifth wheel 18 aforesaid. The rack-lever 12 is lifted every half hour to release the rack and thus permit the clock to strike, by means of a lifting-finger 52 projecting rearward through an opening 53 in the plate 21 and forming a part of the warn-lever 15, which is lifted every half hour through the medium of a warn-actuating .lever 5e mounted upon the rock-shaft 14 and bent at its lower end to coactwith a two-point cam 55, mak

ing a complete revolution every hour and mounted uponthe center arbor 36. The operation of warning and releasing the striketrain takes place in the ordinary manner of such clocks.

For convenience in describing the operation of my improved clock, reference may first be had to Fig. 1, which shows its parts in the positions which they will have just after the strike-train is released, preparatory to striking six bells. It will be noticed that the ships bells-lever 10 has been lifted with the rack-lever 12 and that one of the high points 32 of the ships bellscam 29 is presented to its under face. At the conclusion of striking six bells, the parts will be in the positions shown in Fig. 2, in which it will be noticed that the point 30 ofthe ships bells-lever 1O rests upon'the upstanding high point 32 of the cam 29. The same cycle of movement is again repeated and seven bells are struck, at the conclusion of which the parts will have the positions shown in Fig. 4, in which it will be noticed that on account'of the presentation of one of the clearance-faces 31 to the point 30 of the lever 10, the same has-been allowed to fall into a sufiiciently depressed position to have its cut-out finger 22 engaged by the cut-out hook 23 upon the hammer-shaft, whereby the same although it goes through the rocking movement for striking eight bells, is prevented from falling far enough to permit its hammer 27 to strike upon the last count, so that seven bells are rung rather than eight. By

ships bells-lever pivotally mounted between its ends thereupon in line therewith, a hammer controlled by the ships bells-lever, and a ships bells-cam timed and arranged to nullify one stroke of the hammer at the half hours.

2. A 'rack-and-snail ships bells clock in which the bells are struck in pairs, having a rack-lever, a substantially horizontal ships bells-lever pivotally mounted between its ends thereupon in line therewith, a hammer, a cut-out lever connected with the hammer and directly coacting with one end of the said ships bells-lever, and a ships bells-cam timed and arranged to permit the ships bells-lever to coact with the said cut-out lever every half hour and to. prevent such coaction on the hours.

rack-and-snail ships bells clock in which the bells are struck in pairs, a racklever, a substantiallyhorizontal ships bellslever pivotally mounted between its ends thereupon in line therewith, a hammer, a cut-out lever connected therewith and directly coacting with one end of the said ships bells-lever, and. a cam having high points andclearance-faces and coacting with the ships bells-lever to permit the same to coact with the cut-out lever on the half hours and to prevent its coaction therewith on the hours, the said cam revolving once in three hours.

In testimony whereof, I have signed this specification in the presence oftwo subscribing witnesses. 1

FRANK X. WEHRLE.

lVitnesses WILLIAM A. ARMoUR, MASON T. ADAMS.

Images