US1345251A - Warning-signal - Google Patents

Description

E. RUBES. WARNING SIGNAL- APPLICATION FILED ocr. 3. 191a. RENEWED MAR. 22. 1920.

Patented June 29, 1920.

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@Zfizeaaes r UNITED STATESPATEVNT OFFICE.

ERNEST mums. or BROOKLYN, NEW YORK.

WARNING-SIGNAL.

Application filed October 3, 1916, Serial No. 123,522. Renewed March 22, 1920. Serial No. 867,887.

To all whom it may concern.-

Be it known that I, ERNEST Burns, a citizen of the United States, residing at Brooklyn, in the county offKings and State of New York, have invented new and useful Improvements in Warning-Signals, of which the following is a specification.

This invention relates to warning signals for automobiles, motorcycles and other vehicles, and theprimary object of the same is to provide a mechanical horn or signal in which alarm notes are generated by continuous displacement of the resonant. diaphragm through the medium of directly applied manual-power to set up a rapid rotation of a momentum wheel or actuator hav- I of this'shaft being provided with bearing ing devices to engagea portion of the'diaphragm through the medium ofmechanism of a particular construction.

The invention consists in the construction and arrangement of the several parts which will be more fully hereinafter described and claimed. i

In the drawing:

Figure 1 is a partial longitudinal vertical section of a'warning signal embodying the 7 features of the invention.

Fig. 2 is an enlarged horizontal section of the working mechanism of the signal and part of the inclosing casing, together with a portion of the diaphragm. 1

Fig. 3 is an enlarged transverse vertical siection taken in the plane ofthe line 3-3,

Fig 4: is a detail side elevation of the momentum wheel or actuator looking at the side thereof opposite that shown by Fig. 1.

The numeral 5 designates a mechanism inclosing casing which may be of anysuitable dimensions, 6 a resonator or sound carrying horn secured to the casing, and 7 a resonant diaphragm having a projection 8. 'The diaphragm 7 is secured in fixed position between coacting flanges 9 and 10 respectively formed as a part of or secured to the casing 5 and resonator 6.

Within the casing 5 the working mechanism is mounted and comprises a shaft 11 having at one extremlty an elongated p1n1on 12 rotatable therewith, the two extremities points or cones 13 engaging the inner ends of correspondingly recessed adjusting screws or threaded centers 14 which extend through opposite sides of the casing and are engaged by set nuts 15 to hold them in their adj usteda' positions. Loosely mounted on the shaft 11 Specification of Letters Patent. Patented J une 29 1920,

is a revolving diaphragm actuator 16 which is in the form of a momentum disk or wheel and providedwith a plurality of peripheral teeth 17 preferably at one side of the center thereof, thls diaphragm actuator being arranged closely to the inner terminal of'the pinion 12. A ratchet wheel 18 is secured to the shaft 11 close to the side of the actuator 16 opposite that which i's'adja cent to the pinion 12. ready rotation on the shaftll between the pinion 12 and theratchet wheel 18, and on the side of the actuator or momentum disk or wheel 16 is a pawl 19 having a spring 20 engaging the same and holding it in continual biting relation to the ratchet wheel 18, this pawl or d0g19 constituting a oneway clutch connection between the shaft 11 and the said actuator ormomentum wheel 16. It will be understood that the pawl or dog l9 positively engages the teeth of the ratchet wheel 18- when the actuator or momentum wheel '16 is operated to vibrate the diaphragm 7 by depression of the manually controlled operating means which will be presently described, but said pawl or dog prevents reverse rotation of the said actuator or momentum wheel. The pawl or dog 19 connects the momentum wheel 'or actuator 16 tothe shaft 11 throughthe medium .of the said ratchet wheel and whereby a rotative impulse is given to the momentum wheel or actuator to cause the teeth 17 thereof to engage the projection 8 ofthe diaphragm 7 Within the casing and extending across the latter, in a vertical direction as shown in the drawings, is a guide sleeve 21 having.

a slot 22 in its front side adjacent to the pinion 12-, this slot being increased in lateral The actuator 16 is confined for dimensions, as at 23, adjacent to the said pinion. The upper portion of the casing 5' has an opening 23 formed therein and the lower casing has a similar opening24 over laterally projecting flanges 26,, vas clearly shown by Fig.3. Reciprocatinglymounted in the guide sleeve 21 is a rack bar 27 which constitutes the primal o crating means for the signal, the teeth 28 0 this rack bar being which is secured a depending cap 25, the I freely reciprocable in the upper opening 23 7 and normally projects above the top portion of'thecasing 5. The upper part of the rack 'bar which pro ects above the casing is smooth and preferably rectangular or square in cross-section, and on'the upper end thereof is a pressure head or knob 29 for engagement by the hand of the operator in exerting adownward pressure on the rack bar 27 to actuate the shaft 11 through the pinion 12. A coiled spring 30' surrounds the outer portion of the pinion 12 and a part of the adjacent center bearing and has one terminal 31 secured to the casing 5, as shown by Figs 2 and- 3, and the opposite terminal 32 fastened to the intermediate portion of'.the said pinion. 'The coilsof this spring contract and relax relatively to the pinion and adajcent bearing center Maccording to the direction of movement of therack bar 27 The'teeth 17 ofthe actuator or momentum wheel. 16 are always held in engagement with the projection 8 of'the diaphragm 7, and a downward pressure on the rack bar 27 sets up a rotation of theshaft 11 through the medium of the pinion 12 and the said actuator 16 is rotated by the engagement of the pawl or dog 19 with the ratchet wheel 18. A rapid reciprocation ofthe rack'bar 27 will result in a correspondingly rapid rotation of the actuator 16, the'latter acquiring sufiicient momentum to cause it to run some time'after positive actuation thereof through the operation of the device's just explained and thereby produce a rather prolonged warning signal or sound. When the rackbar 27 is relieved of downward pressure it is returned to normal position by the spring 30 and this springalso rotates the shaft. 11 and pinion 12 in a direction reverse to that imparted thereto bythe depres- [sion of the said rack bar, and as the rack lbar is always in mesh with the pinion it will be accurately elevated or returned to normal position by the said spring, which is coiled and tightened by the downward 1 movement of the rack bar, the springcoils contracting around the portions ;of the pinion and center bearing .engaged thereby. This upward movement of the rack bar .to

, its normalposition does not interfere'with the'operation of the actuator 16, or the latter is not reta'rdedin its rotation in View of the 'factthat the pawl or dog 19 is free to slip over the teeth of the ratchet wheel "The shaft 11 may be sleeve 21 toothed diaphragm actuator mounted loosely. rotate on the shaft, a reciprocatory when the shaft and pinion are reversed in their operation by the spring 30 when pressure is relieved from the rack bar.

found necessary through the medium ofthe screw centers explained, and by the userof the sleeve 21 the rack bar 27 is always held in positive and reliable operating relation to the pinion 12 and will not pull away from or have only a partial engagement 'relatively to the said pinion. The improved signal may be instantly operated to produce a warning sound by the slightest depression of the rack bar' 27, with material advantages in this type of warning signals. The

several parts of the improved warning. sig-' nal are comparatively simple in construction and may be readily associated to produce a strong and durable signal device.

'What is claimed is: v

1. A warning signal of the class specified comprising a casing, a resonant diaphragm held in the casing, a shaft extending across the interior of the casing in rear. 0 diaphragm and pinion as a part of the structure thereof, said pinion extending from about the center of the shaft outwardly to one end, a to rack bar solid from end to end and mounted embodying an elongatedadjusted at any time i f the 7 in a guide sleeve, the rack bar being'held'in I continual engagement, with thefpinion, for

rotating the latter ma" direction to impart a rotation to the actuator to vibratethe diaphragm, the pinion vby a reverse, movement being the sole means in direct engagement with the rack bar for restoringthe latter to normal position, a ratchetwheel fixed to the shaft at a distaneefrom the "innerend of the pinion, a pawlsecured to the actuator and continually held in engagement with'the ratchet wheel, and a. spring loosely coiled around the outer extremity of the pinion and having one endsecuredto the pinion and the opposite end to an adj acent'portion of the casing ata distance from the'pinion to impart a reverse rotation 'to the pinion.

and shaft subsequent to actuation of the shaft for vibrating the diaphragm, [the spring coiling upon the pinion when the rack bar is depressed.

'2. In a warning signal, the combination of a casinghaving a diaphragm'mounted therein, a shaft rotatably disposed i'nthe casing and having integral operating means, a weighted diaphragm actuator mounted'to 'loosely'rotate on the shaft, means provided between the actuator and the shaft for connecting said actuator at intervals to the shaft, a reciprocatingrack bar engaging the said shaft operating means, and a spring loosely coiled around a part "of the shaft and having one. end secured to the latter and the opposite end to an adjacent'portionofpthe 18(1 casing to impart a reverse rotation to the. my hand in presence of two subscribing witshaft subsequent to actuation of the shaft nesses. for vibrating the diaphragm, the spring'being coiled upon the part of the shaft en- ERNEST RUBES" 5 gaged thereby When the rack bar is de- Witnesse v pressed. v CHAS. 'S; REILLY, In testlmony whereof I have hereunto set W. H. MASON.

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