US1294936A

US1294936A - Signal-horn.

Info

Publication number: US1294936A
Application number: US5350615A
Authority: US
Inventors: Eric Moard
Original assignee: BEVIN BROTHERS Manufacturing Co
Current assignee: BEVIN BROTHERS Manufacturing Co
Priority date: 1915-10-01
Filing date: 1915-10-01
Publication date: 1919-02-18
Anticipated expiration: 1936-02-18

Description

E. II/IOARD. SIGNAL HORN.

APPLICATION FILED DCT. I. 1915.

W/E/VTR Eric' Maarn@ Patented Feb. 18, 1919.

.adjustments of the mechanism through' Jamo MOARD, oF EAST HAMrToN,

CONNECTICUT, AssIGNoR `fro BEVIN isnoriinns MANUFACTURING COMPANY, 0F EAST HAMPTON, CCNNECTICUT, A CORPORA- `'.l-ION j OF CONNECTICUT.

Specification of Letters Patent.

"SIGNALHORN Patented Feb. 18, 1919..

Application filed October 1, 1,915. nSerial No. 53,506.

It relates more particularly to devices i which are commonly employed for motor vehicles, launches, boats or fog-signals or in fact, wherever a signal or alarm device is desirable. It belongs to a well-known type of such devices wherein a diaphragm is employed for vibrating the air.

More specifically, it pertains to the class of devices in which a diaphragm is vibrated at high velocity and with an amplitude which is suflicient to produce sounds` of great intensity. v

The essence of the invention as hereinafter defined, pertains to the mechanism and the which a diaphragm may be actuated to the varying degrees of intensity b-y the operator.

The invention as hereinafter described, embodies a mechanism so actuated that a greater or less amount of force may be applied by the operator, and it is within the power of the operator in manipulating the device to secure the greatest intensity of ap plied force to the vibratory diaphragm almost instantly, Vor he may gradually apply the force. By the manipulation of the mechanism, any desired tone may be secured.

It will be apparent that the mechanism provides a means whereby an extremely sharp high-pitched note may be sounded during a full period of operation, or the note may be varied to a gradually ascendingv and descending pitch. In fact, great latitude of operation is possible and the note of the horn may be raised and lowered` at will, or may be maintained as desired by a l proper manipulation of the actuating mech- BIIIISIII.

The device as above described, differs by in the county of Middlesex and moved.

wherein the full intensity of vibration of a i 4must be brought up to its full torque and speed before such `a condition can be approximated. `In such motor driven signals, the size` of the motor and the consequent possible application of power is, of neces sity, very limited. In the arrangement herein described, there is practically no limit to the power as it is possible for the operator 3 toapply an extremely heavy pull upon the mechanism,` developing an unusual power almost instantly and transmitting an operating force Which is incomparably greater than that of the limited sized motor ordinarily'` employed.

The object of the invention is to "provide a` simple compact device, in which the manpulation of.` the vibratory mechanism or diaphragm will be under manual control and subject to variation at the will of the oper# ator. i A further object is" to provide a multiply.` ing mechanism which will induce high rates of "speed upon the agitating shaft, subject to the control and the modification of the operator at will.

It is a further object of the invention to provide for positive adjustment of the various parts from the exterior of the j casing. The adjustments are such, that an initial coarse adjustment may be secured and sub sequently a finer adjustment of the actuating mechanism may be effected'for tuning the horn.

- Fig. 5 is a detail face view of the` gears and rear plate, the front plate being fre- Fig. 6 is an interior face view of the spring barrel. i

` Fig. 7 is a fragmentary view of the da- 'adjustmentsrthereof The mechanism is entirely inclosed in a Ysuitable casing and is made adjustable from the exterior of said casing.

In the drawings, the numeral 1, denotes ahorn or resonatonwliichis securedto a cup-shapedr'iange 2,l between which and a 'iange 3, of a cylindrical 'casing 4, is clamped a diaphragm 5.

VThe Vdiaphragm V5, bears va hammer or anvil 6, which as illustrated in Fig. '7, consists of aplate portion 7, with the struckup anvil portion 6. 'llheplate 7, is secured to the diaphragm byrivets 8. This anvil 6, is of course of hardened material and is struck by an actuatoror cam 9.

Asuitable bracket is provided for supivporting the' horn structure in any desired position'. The bracket is not illustrated in the drawings.

vIt is to be understood that the form of the Vvcasing, bracket and horn or resonator may be varied to suit various tastes in designs.

As illustrated herein, Y:the main casing is of cylindricalform, and the entire mechanism, withV exception of thel pull cord and appurtenant parts, is arranged-within this 'A casing and maybe adjusted bodily therein,

in order to bring the'cam 9, into a more or lessY .close juxtaposition with reference to the anvil 6,",of thediapliragm.

The Ventire mechanism is supported in a `frame-'work `consisting of a pair of

plates

10, 11. These plates are Vspaced apart by tubular members 12,l through which pass bars or rivets 13, which clamp the vplates against the spacers 12.

YThe main driving shaft 14, is supported between thetwo plates, asbest illustrated in Fig. 4, ,and has loosely mounted upon itY a'driving gear 15, whichis provided with-a spring-pressed pawl 16. This pawl engages a ratchet 17 which is secured to the shaft 14.

The spring 18, passesthrough the gear 15,/ and has one -end engaging the tail 20, of the pawl 16, while the oppositeend of the spring 421, extendsathrough a perforation'in the gear. By this arrangement an extremely long pliable spring isv made effective between the gear and the pawl.V

. The plate 11, has Yradially lpunched `out flanges22, which asillustrated herein, .are

three in number, and serve as adjusting points over which one end of a spring 23, may be secured. Y Y l This spring 23, passes about a :spring drum or-kbushing 24,*wh-i`chvis secured to a spring casing 26. The inner end of the drum or arbor v24,fis slotted'asat 27, to engage shoulders` 28 formed upon an enlargement pliragm'showing thev Vposition and arrangen y of the spindle 14. This effects a permanent clutch between the casing 26, and the spindle 14.

The casing 26, is of cup form and incloses the spring and spring drum. This casing has struck out lugs 29, to which the outer end of the spring 23, is attached. The ends of the spring are of hook form so that, while one end engages one of the lugs 29, and the casing 26, the other end will enga-ge one of the struck up lugs 22, of the plate l1.

It will be seen from this arrangement that Various adjustments for tensioning the spring 23, are possible; inasmuch as said spring may be attached to either of the lugs 29, and to veither of the lugs 22, and by then turning the spring drum 24, until its slot 27, engages with the shoulders 28, an. ad.- justineiit of wide range may be secured. The spring 23, is comparatively light and just sutiicient to re-wind the pull-cord 35. The frictioiiof the parts is comparatively great so that a considerable tension may be placed on the spring without driving the partsand, in fact, such a tension as will very rapidly re-act to wind the cord 35.

In applying the device for use, the end of the pullcord 35, may be made fast to some fixed vpart of the motorcycle, automobile frame, or convenient fixture. and the spring 23, adjusted to give any desired tension to determine the rapidity of re-action for re-wiiiding the cord after the same has been pulled and unwound from thel drum.

In the event of over-running of the parts. under the re-winding action of the spring 23, the loose connections of the respective ends of the spring with the flanges 22, and the lugs 29, prevent reactionary strains which would cause breakage or injurjv to the spring. It is obvious that, were the ends of the spring permanently secured to the frame-part 11, and casing 26. 'there would be liability of breakage upon over-running.

to say nothing of the ditliculties of assembly and lack of adjustability.

TWith the arrangement as shown and'described, one end ofthe spring may, h v partial rotation, be engaged with one of the lugs 29 g and upon rotation of the casing 26` the other end of the spring will be engaged with one of the lugs or ianges 22, as illustrated in'Figs. 3 and 6. It is also apparent that renewals of the spring may be effected without difficulty by loosening the nut upon the, shaft 14, and removingv the winding drum and the casing 26, without disturbingl any of the adjustments between the cani, diaphragm, and other drivingmechanisms.

Alug 30, is struck out of the casing 26, and projects into a perforation 31, formed in a disk 32. The disk 32, with a coperating disk 33, and intermediate huh 114. serves 1 as a winding drum for a. cord This pull cord 35, is wound upon the llO . and through the ratchet and

pawl

17 and 16,

winding drurn 'under-the influence of the spring 23, which rotates the casing 26, winding drum and the spindle 14, upon thefree ratchet and pawl `17,

. drives the gear 15.

upon the cam spindle 36a. This spindle and its pinion `36.have a loose play between

fixedbushings

37, 38,

which are respectively fixed in the plates 10 and 1l. The bushing 38, extends` through the plate` l1, through a perforation of the casing 4. It serves and also passes out as a long bearing for the spindleshaft 36?, which is adjustthe cam 9, which is tion in the same direction in able therein.

A thrust bearing consistinglof an adjusti ing screw 40, with a check-nut 41, is arranged to determine the end play of the spindle 36a. y

rlhe inner end of the spindle 36, bears preferably secured `to an enlarged hub 9a, and Weight to the cam in upon the anvil 6.

It is to be understood that the casing 26, passes out through a perforation in the rear of the cylindrical casing 4, so that any adjustment of the mechanism toward and away from the diaphragm 5, is made possible.

The front plate 10, has rearwardly turned lugs 10a, having screw threaded openings by which locking screws 10b, may be utilized to lock the mechanism to the casing 4, in any desired position of adjustment. Slots 4a. are provided in the casing to which the screws 10b, extend and along which adjustment may be effected. This provides a means for bodily adjusting the mechanism with reference to the diaphragm and the anvil 6.

In order to secure liner adjustments so that the exact and proper striking force may be delivered by the cam 9, to the anvil 6, the adjusting screw 40, is employed. It will be seen from the above described arrangement of parts, that with the cord 35, wound upon the drum, a quick pull upon the cord will instantlytransmit very rapid rotation to the cam 9. The instant the pull upon the cord is released, the spring 23, winds the cord back upon the drum, allowing the gear l5, pinion 86, and cam 9, with appurtenant parts, to continue their rotawhich they were propelled by the pull upon the cord.

It will be apparent from the above that by manipulating the cord, any desired de gree of force may be applied for driving the gears and the cam 9, and it will be its striking action entirely under the nal tone may be The gear 15, meshes with a` piniont36,

39, in therear end driving said cam, :a c themain driving shaft andgears, a winding which gives stability `s rino' barrel casinof extendinoa e r e:

equally" apparent that an initial force of i ronsiderable intensity can be applied, or by rapidly pulling upon and releasing the cord,

`the `mechanism may be maintained` at a state of high speed.

In fact, the manipulation of the device is control of the operator, and therefore any desired intensity of produced. l

`It apparent that the exact details of the mechanism herein above described maybe varied to a considerable extent without lideparting from the spirit or intent of the 1nvention which contemplates a unique ai'- rangement of adjustments by which` a variety of effects are possible with a simple actuating mechanism-` WhatI claim as my invention and desire to' secure by Letters Patent is:

l. In a signal horn embodying a vibrai tory diaphragm and a cam for actuating the same, a main driving shaft andgears for clutch device `between drum upon said shaft, a spring for winding said drum in one direction and means for automatically and adjustably connecting 'said spring at its opposite ends to one of a plurality of attaching points.

2. In a signal horn embodying a vibrai is tory diaphragm and a cam for actuating the diaphragm, gears for driving said cam, a frame supporting said gears and cam, a main shaft, a clutch intermediate said shaft and the gears, a spring drum mounted upon theshaft and positively clutched thereto, a casing secured to the spring drum and forming a closure therefor, a spring, a series of adjusting lugs upon the frame, a series of adjusting lugs upon the casing, said lugs pro-viding means for the automatic engagement of the opposite ends of the spring as it is tensioned, and a winding drum adapted to be connected with the casing.

3. In a signal horn embodying a vibratory diaphragm, a supporting frame, gears, and an actuating cam for said diaphragm, a casing inclosing said frame and within which said frame is adjustable, means for adjusting said frame within the casing, a beyond the inclosing casing and having means for attachment to the main shaft, a main shaft extending through said barrel and casing, a winding drum supported thereon, and a winding spring for rotating the main shaft in one direction.

In a signal horn embodying a vibratory diaphragm and a cam for actuating the same, a main driving shaft and gears for driving said cam a clutch device between the main driving shaft and gears for driving said gears and cam in one direction, a casing inclosing said mechanism and rovided with a perforation through which the Y and forming a closure therefor.

In a device of the character described, a main casing, a supportingY frame adJustable therein, said frame rbearing gears,v an

' extended-main shaft, a cam-shaft, and an actuating cam for a diaphragm,1 a diaphragm in the casing,`a" bearingfor 'tlliecam shaft extending from the frame and'proj ect` ing through the casing, adjusting means for the vcam shaft arranged .inlvsaidbearing a spring barrel casing extendinglthrough'the -main casing andV having -means for )rattachy ment-to the main shaft, said shaftlextendingthrough the barrel and casing; afwinding drum supported thereon, and afvvinding spring for rotating the anainfshaft and: drum y Aecopieesof thi'spatenrmay be obtained: for

@eclipse in one direction, said spring being removably 'attached to the spring barrel casing and the main casing to permitadJustment of saidcasing with'reference to the main shaft.

6. In a device of the character described, a vibratory diaphragm,4 a driving' mecha- `1iism,and acam' for actuating the diaphragm,

a main shaft for the driving mechanism'pro- ]ecting through a supporting frame, asupporting frame for said parts, a plurality of spring engaging lugs upon the frame arranged about Said shaft, a spring barrel remoi/ably clutched to said shaft and having a vplurality of lugs-for automatically engaging one 'end 'of a Winding spring, a "Winding spring loosely engaging one of ther lugs of the frame'and one of the lugs of the spring 1 barrel casing, and a winding drum operatively connected with the main shaft'aiid the spring drum casing.

ERIC MOARD. Witnesses.

'MAYO STURPE, FRED. H. BARTON.

fivecents each, by addressing the Commissioner ot'Patents. ffWaShingtOn, D. C.