US1588496A - Spring motor for signaling mechanism - Google Patents

Description

June 15 1926. 1,588,496

H. E. REEVE SPRING MOTOR FOR SIGNALING MECHANISM Filed August 28, 924 2 Sheets-Sheet. 1

H. E. REEVE SPRING MOTOR FOB SIGNALZENG MECHANISM June 15 1926.

2 Sheets-Shet 2 Filed August 28. 1924 fi ural- 596a acmsee, nwmron l/e/sh X98062. 5.2190417? Patented June 15, 1926.

UNITED STATES PATENT OFFICE.

HENRY E. REEVE, DECEASED, LATE OF NEW YORK, N. Y.; BY HEL EN REEVE, EXECU- TRIX, OE BROOKLYN, NEW YORK.

SPRING MOTOR FOR SIGNALING MECHANISM.

Application filed August 28, 1924. Serial No. 734,572.

My invention relates particularly to what plates 10 and 11 is secured a gear 17 to are commonly termed pull boxes for alarm systems and this application is a partial continuation of #640,241, filed May 19th, 1923.

Among the objects of the present invention are to provide a simple, inexpensive but reliable form of release mechanism, to

simplify the wind-up ratchet mechanism and lnsure proper operation wlthout lnterference, to construct and arrange the parts so that the mam spring can be readily wound and assembled with-the remainder of the mechanism and to facilitate accurate and permanent assembly of the parts of the frame of the motor. The preferred form of mechanism for carrying out these objects separately and collectively is shown in the accompanying two sheets of drawings.

Fig. 1 is a front View of a pull box spring motor embodying the improvements of my invention.

Fig. 2 is a plan view of the same Fig. 3 is a front view of the mechanism with the front plate and operating handle omitted.

Fig. 4 is a rear View.

Fig. 5 is a detail sectional view showing the method of mounting the main spring.

Fig. 6 shows mechanism for initially winding the main spring.

Fig. 7 is a detail sectional view showing the method of holding one of the gear shafts in place.

Fig. 8 is a perspective detail showing the means for spacing the frame plates.

The frame of the motor has a front plate 10 and a back plate 11. These plates are spaced apart by channel-like or angularposts 12 and held in their proper relation by the screws 13. Each post member 12 has two lugs 14 on each end seated in recesses or holes in the frame plates. This is a very simple and inexpensive construction and yet it is very easy to assemble and the parts are held rigidly against twisting or displacement when the screws 13 are tightened. Each of the screws 13 is preferably located within the channel; of one of the post mem-- the shaft and then draw out the shaft.

bers.

The signal mechanism has a wheel 15.

, mounted on a shaft 16 and constructed and ed on the shaft 16and secured to the pinion 20. v

The main driving spring 21 has its inner end hooked on to the pin 22 which projects from the sleeve 23. This sleeve 23 is mount ed on the shaft 24 outside of the frame and is normally locked to the shaft by the pin 25. The outer end of the spring 21 is secured to a bolt member26. A bracket 27 is provided for holding the spring in place. This bracket is held to the frame plate'll by means of the screw 28 and the bolt 26 and in its turn holds the pin 25 from accidental disengagement. This construction makes it possible to assemble the spring and other parts in a very simple manner. For instance, thespring is hooked to the pin 22 and the bolt 26 before being wound up. At this time the pin 25 has not been inserted. The winding. shaft 29'l1owever is inserted in cured in position. Thereupon the winding handle 29 is released and the pin 30 withdrawn. I

The gear 31 meshes with the pinion 20 for transmitting the power of the driving spring to the signal wheel. The wig-wag 32 is carried by a pivot. 33.and driven by a toothed wheel 34 which is mounted with the pinion 35 on the sleeve 36 on shaft 36. This shaft is held in place by the hearings in the plates 10 and .11 and by the cover plates 37 and 38. Each of these plates 37 and 38 is held in position, for instance by a rivet 39 which serves as a pivot for it and a screw 40. To remove the shaft 33 or the shaft 36' it is simply necessary to remove the screw 40, swing the plate 37 so as to clear the endsof ecured' to the gear 31 is a pinion 41 which meshes with the segmental gear 42. This latter has a sleeve 43 and is mounted between the plates 10 and 11 on the shaft 44 which extends through to the rear and has upon it '80 the outer end of the sleeve 23 and tem-' stopped by'abutment 5 1. Should the oper- CIJ a spring tending-to hold the shaft 14k and the arm' 416 11116116 posltion shown 1n Figs; 1 and 2 where the arm 16 abuts against the stop 17 w-hiclris'carried by a part- 18 pf the 5 front plate 10. This part 1-8 serves as .an

abutment for the segmental gear 42. The arm 16 has a pawl 19 which is pivotediat. and spring pressed toward the axis of the shaft 1 1. This pawl extends around one edge. ofthe arm 4J5 into the path of movement ofthe pawl .51 which is pivotally. se-

cured at52 .on the segmental gear 42." This pawl '51 is spring press d toward the axis of the shaft 14. The operating or pull lever53.

is secured on the outer angular end of the shaft 1-1 in any suitable manner.

Normally the two pawls A19 and 51 are in engagement with each other so that when the V lever 53 is pulled down the arm -16 rotating -20 because oftheinterengagement of the pawls "with-it rotates also the segmental gear 42 19 and 51. This rotates'the pinion 411 and the gear: 31 clockwise as viewed from the front and .thus rotates the pinion 20and single toothed ratchet 19 anticlockwise.

. Should the handle 53 be released beforethe ratchet 19 makes acomplete revolution-the spring 21 will return the rotat ng parts to their HOIDIZLlPOSltlOIlS without having operi 'ated thesignal shaft 16 and the signal wheel 115. In;case,the lever is pulled far enough to give one or more complete rotations to the singletoothed ratchet "19 and thus allow thexpawl 18 to againcatch the ratchet '19 ,then, in that case, as soon as the handle '53 is released'the main spring 21 will rotate ,the gear 31, pin-ion 20, ratchet 19, pawl18 and gear 17. and the signal shaft 16 and wheel 15 one or more turns depending upon the number of times the. singlev toothed ratchet 19 has been rotated by the winding action of'the lever or handle 53. This single toothed ratchet connection between the pinion 2O and-the gear l7'makes it impossible to produce anything but a full signal rotation of ;the signal wheel and thus makes it impossible to send a partial signal as is the case when the ratchet connection :be-

tweenthe pinion, and, gear on the signalj shaft has more than one tooth.

'Althoughthepawls 1-9'and 51 are normalfly; interlocked" or interengaged, it will be .noted that when the'lev er handle 53 is pulled .;-far enough to obtain the requisite rotation of the. single toothed ratchet 19 and the handle isfthen released the spring 415 will returnthe handle to its initial position more 'hrapidly than the main driving spring 're turns the segmental gear -42. This .means' "thatthe pawls 49 and 51 will become separratedand'the outer tip of the pawl 51*will immediatelytmove toward the aXisof the i-shaft, stand out of the path of movement Yof the operating tipof the pawl 49. being ating lever handle 53 be again pulled before the signal has been completed the'pawl 19 cannot again engage the pawl'51 and it is therefore impossible to "interfere-with the signal whichhas once been started. As the signal is being completed however the seglment-al. geana'Q carries the pawl 51 around with it until the tip of the pawl engages [the stationary abutment 418 on the plate 10 and thus forces the tip of the pawl 51 ,out-

1.-1n a spring motor,--a combination of a.

frame having mounting plates, a main drivmg shaft nvotally supported therem, a

sleeve mounted on said shaft-outside of said frame, movable means of connectionbetween said sleeve and said-shaft, aspring on the outside ofsaid frame connected to, said sleeve and to said frame said sleeve-having a socket -to receive means" for rotating said sleeve. 7

2. In a spring motor, a frame containing a gear train, a main drivingshaft extending beyond said frame, a sleeve on said'shaft extendlng beyond said frame, a spring outside of said frame and connected to said sleeve and to said frame, apin connecting saidsleeve and said shaft and a bracket on the outside ofsaid frame for holdingsaid spring 1n place. I

3. A spring motor comprising aframe, a

vmain shaft, driving spring-therefor, a

winding shaft, a spring forreturningsaid winding shaft independently of saidanain spring, a gear rotatable on said: winding:

shaft independently there'of and meshing with a gear on said spring shaft, an arm carried by said'winding shaft and pivoted spring pressed interengaging pawls carried by said arm'and by said segmental gear.

1. A spring motor comprising ai frame,

a. main driving shaft extending throughto the rear of said frame, a driving spring mounted on the outer-end th-eerof, a-winding shaftextending through said frame,

return spring mounted on the rearend thereof outsideof said frame, apulllever mounted on the front end of said winding shaft, a segmental gear mounted on said winding shaft, .a gear on said ClTlVlIlgShfiffimeshing with said segmental gear and pawl connectionsbetween' said winding] shaftsand said 1 segmental gear.

5. In a signal mechanism, a lever actuated gear, a inain spring and windingshafthaw lit] the

ing driving connection with said gear, a shaft, a pinion free to turn on said shaft, a single toothed ratchet secured to said pinion, a gear carried by said shaft, a pawl carried by said gear and positioned to latch with said ratchet and an escapement connected to said gear.

6. Signal mechanism comprising a gear, a shaft therefor, a pinion mounted to turn independently on said shaft, a driving'spring for turning said pinion, means for winding said spring, a ratchet secure-d to said pinion and having but a single tooth, a spring actuated pawl carried by said gear and coacting with said ratchet and an escapement driven by said gear. 1

7. In a pull box, a driving spring, a shaft therefor, a pull lever, a shaft therefor, a gear mounted to turn independently on said lever shaft, a releasable pawl between said lever shaft and said gear, a gear on said spring shaft meshing with said first mentioned gear, a second gear on said spring shaft, .a wheel,

a shaft therefor, a pinion mounted to turn on said wheel shaft and meshing with said second gear, a single toothed ratchet at tached to said pinion, a gear carried by said wheel shaft, a pawl carried by said latter gear forcoacting with said ratchet,

and escapement mechanism driven by said latter gear. 7

8. blgnal mechanism comprising a shaft, a

pawl pivotally carried by said shaft, a gear arm, an oscillating member, a pawl movably carried thereby and coacting with said first mentioned pawl, abutments for said member, said arm and said latter pawl, and means for automatically moving said latter pawl from a position permitting coaction with said first mentioned pawl when the two become separated.

11. In a signal mechanism, an oscillatory lever, a shaft to which said lever is fastened, an arm carried by and fastened to said shaft, a pawl mounted on said arm,a second oscillating member, a pawl mounted thereon,

stops for said oscillating members, and an abutment for said latter pawl whereby this pawl is swung into a position permitting coaction with said first mentioned pawl, and means for automatically moving said latter pawl from a position permitting coaction with said first mentioned pawl when the latter pawl becomes free to move from its coacting position.

12. In a signal mechanism, two oscillable members, pawls carried thereby and normally interlocked when the parts are at rest, each of said pawlsbeing movable away from the other pawl.

13. In a signal mechanism, two'oscillable members, spring actuated and pivoted pawls carried by said members and normally interlocked when said members are at rest.

14. In a signal mechanism, two oscillable members, pawls yieldably carried thereby, and means for normally holding said pawls in engagement when said members are at rest.

15. In a construction of the character described, frame plates having perforations or recesses, angular spacing columns having abutting shoulders for said plates and lugs extending into said perforations and screws,

passing through one plate and into the other between the sides of said column for holding the parts together.

16. In a construction of the character described, frame plates having perforations or recesses, spacing columns of angular cross section having a part of the ends formed to serve as abutting shoulders for said plates and a part of said endsformed to pass into or through said perforations, and means for holding the plates against said abutting shoulders.

17. In a construction of the character described, frame plates having perforations or recesses, sheet metal spacing columns bent to form an angular cross section and having the ends formed as described, and recesses at the ends of the angular bend to allow for the expressed fins.

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