US1500328A - Mechanical warning signal - Google Patents

Description

July s 1924.

- 1,500,328 L. C. LESTER v MECHANICAL WARNING SIGNAL Filed Oct. 5, `1923 July 8 1924.

L. C. LESTER MECHANICAL WARNING SIGNAL Filed Oct. 1923 2 Sheets-Sheet 2 lll/4 Patented July 8, 1924.

UNITED STAI-Es LEONARD c. LESTER, or cRANs'roN, RHODE ISLAND.

lVIC-ANICAL i WARNING SIGNAL.

Applicationiled October. 3, 1923. Serial No 666,301.

To all whom t may concern: l

Beit known that 1,. Lnenenn C. Lnernn, e citizen of the United States,v residing 'at' Cranston, in the' county of Providence. and State'of Rhode Island, have inventedV cerfA tain new and useful Improvements Me,- v chanical Warning Signals, of which the' following is a specification.V g

My invention relates tomechanical warning signals, such as hornsof the diaphragm type, adapted. for use upon automobiles and other power vehicles. Y c

The essentiel Obi eete f my invention f are' to enable the use of the motive power of the Vehicle es the eperetingferee .et the Signal-s to facilitate operation `and control of the letter; t0 insure' certainty and Speed. in; operation, as `well as clearness and volume of sound; and to attain these and other obieetS, Wheh 'will hereinafter be apparent, in a structure adapted for inexpensive cons .trnetene y i Te theV abete `and allied.` ende essentially my intention .eeneete in enehrerte and in suchcombinations offparts as fall within the eeepe ofthe appended Claime- Inv the accompanying drawings which, form a partl ofl this specificatiom and whereinfis shown merely a preferredform of embodiment of-myinvention,

Figure 1 is a side elevation of my signal. applied toa typical automobile engine'.

Figure 2, a-front end elevation of the signalwith a fragmentary'showing of the par/tjs adjacent thereto. and the fan `in'loroken lines; 'Y i' Figures 3.and 4, section on lines 4-.4 of- Figure 2, and 'Y Figures 5, 6 and 7, section on lines 5 5, 6 6, andl 7-7 respectively of Figure- 4.

Like reference characters indicate like parts throughout the views.

For thepurpose of illustrating my invention'I have `shown in the-drawing a portion 10 of the-body, the instrument board 11, the engine casing 12, fan 13, fan shaft 14, 'shaft pulley 15, crank shaft or cam shaft 16,' shaft pulleyv 17, fan belt 18, and the steering post 2O of a typical automobile operating in the usual manner.

Attached to the engine case 12 by a. screw or otherwise is the arm 26 of a bracket 27 fastened by screws 28 to the frame or casing 30 ofthe hornor signal having the 34-3 and supporting section 35,4 a clamping section- 36, between which and the latter is posi-A tioned an `acoustic diaphragm 37, anda housing section 38. All the sections being.

secured together at their margins by bolts 39. `The frame is completed by 'anangular bracket or arm 41 attached by screws 42to the housing section 38. The diaphragm 37 is provided with the usual button 43'extendthe diaphra m 37 and section 36. v

In aligne openings 48 and 49 in the sections 36 and 38 are thebearings 51 and v52 ing into the sounding chamber 44 between of avib-rator shaft or driven shaft ,54 fixed;

to Whose intermediate portion -is a gearor pinion 56, and fast to whose end is aA vibrator 58 having teeth 59 engageable with thebut# ton 43. Spaced from theshaft are aligned holes 65 and 66 in the sections `36 and 38 re-' spectively.y In hole 65 is fixed. oneend of a stationary or stub shaft 67 which traverses the hole 66 and projects forwardly of the casing and'is supported at its end in a'hole 68 in the bracketV 41. The two shafts are parallel to each other. The'shaft 67Y near its outer end is of enlarged diameter,vas .of 70, forming end shoulders 71. Rotatably mounted on theshaft portion 7 O isa pulley or driving member 73 restrained from inward axial movement b-y a shoulder 74 on one end of the enlarged portion ofthe shaft.

InterposedL between vthe vmember 73 and the Y.

shaftand fast to the former is abushing 75 whose end bears against the larm V41. Upon the inner end faceof the member 73 are one or more, in this instance two, pins or projections-78. The fan beltg18 engages and drives the member 73. Y

Rotatably mounted Von the-shaft 67 Abetween the section 38 andvmember 73, and

having free axial movement upon the shaft,

is an intermediate clutch member or neutral v berA 80 is a driven element constituting a tudinal slots 94k in which are slidably re :tained the lugs 86.

. or bracket 106 fixed to the section 38.

The member which is adapted to alternately engage and f disengage the driving member 73 may be axially shifted in any convenient manner. The means illustrated consistsV of a forked lever 96 comprising an arm 97 and fork 98 in which is suspended by pivot members 99, a yoke 100 which slides in the groove 82 of the disk 81. The arm of the shifting lever is intermediate its length pivoted by a pin 103 to ears 105 on a plate Pivotally attached to the free end ofthe lever arm 97, as at 108, isa rod 109 pivotally attached at its other end to one end of a lever 110 whichv in turn is pivoted intermediate its length to a bracket 113 on the dash 11. In the other end of the lever 110 is'pivoted the end of a rod 115 sliding in an eye 116 on alcollar117 fast to the post 20 and terminating ina knob 119. A helical spring 120 interposed between the eye V116 and the knob is adapted to take up the play of the rods 109 land 115. Manual pressure on the button through the rod Aconnections serves to force the member 80into operative relation with the member 7 3. As soon as the pressure is released the member 80 is returned to original position by spring means located in any convenient position to act upon the member 80 or the lever 96. In this case the spring means consists of a helical spring 122 surrounding the shaft 67 with its ends abutting yagainst the disk 81 and the adjacent shoulder 71 of the shaft.

The operation of my device is as follows. The normal positions of the parts are as shown in Figure 3, all the parts except the member 73, which is constantlyV in rotation by means of the belt 18, being inactive. Pressure by the operator on the knob 119 forces the member 80, against the tension of spring 122, towards the member 73 which brings the lug 84 into the path of the pins 78, by one of which it is engaged and the member 80 rotated so long as pressure is maintained on the knob. This rotation is imparted by the lugs 86 to the sleeve 89, and gear 93 to the pinion 56, shaftv 54, and vibrator 58 whereby the diaphragm is y 'l vibrated through the teeth 59 and button 43.

'It vis to be understood that the invention is'not limited to the specific form herein illustrated and described, but may be em- Y A 1. In a signal of the class described, a vibratorydiaphragm, a rotatable vibrator in operative engagementwith the diaphragm, a fixed shaft adjacent the vibrator", a driven member rotatably mounted on the shaft for actuating the vibrator, a continuously rotating driving member on the shaft, an axially slidable clutch member rotatably mounted on the shaft in slidable engagement with the driven member and movable intoand out off engagement with the driving; member, and means for sliding the clutch member.

2. In a signal of the class described, a vibratory diaphragm, a rotatabley vibrator inl operative engagementV with thev diaphragm, a fixed shaft adjacent the vibrator, an axially stationary' driven member rotatably mounted on the shaft for actuating the vibrator, an axially stationary continuously rotating driving member on the shaft, a clutch member rotatably mounted on the shaft in permanent sliding engagement with the driven member and axiallyv movable into" and out of engagement with the ldriving member, and manually operated means for moving the clutch member into engagement with the driving member. f 1

3. In a signal of the class described,". vibratory diaphragm,a rotatable vibrator in operative engagement with the diaphragm, a

fixed shaft adjacent the vibrator, an axially stationary driven member rotatably mounted` on the shaft for actuatingt'he vibrator, an axially stationary continuously rotating driving member on .the shaft, an axially ics slidable clutch member rotatably rmounted on the shaft between the driven memberand driving member inslidable engagement with the driven memberand movable into and out of engagement with the driving member, manually operated means for moving 'the clutch member intol engagement withfthe driving member, and resilient means'for disengaging the clutch member from 'thel'driving member, i

4.' Inv afsign'al of the class described, avi-v bratory diaphragm, a rotatable vibrator in operative engagement with the diaphragm, a fixed shaft adjacent the vibrator, ay driven member rotatably mounted on the shaft for actuating the vibrator, a. driving memberrotatably mounted on the shaft, an axially `slidable clutch member rotatably mounted on the shaft between the driving memberV and driven member engagea-ble with the driv ing member and driven member, Va spring supported by the shaft interposed between the clutch member anddriving Vmember to maintain the clutchv member inengagement with the driven member, and manually operated means for moving the clutch member into engagement with the driving member.

5. In a signal of the class described, a vibratory diaphragm, a rotary axially immovable vibrator shaft adjacent the diaphragm, a vibrator on the shaft in operative engagement with the diaphragm, a pinion on the shaft, a xed shaft adjacent the first shaft, a drivingl member comprising a pulley loose on the second shaft, and a projection on the pulley, a clutch member comprising a disk rotatably mounted on thesecond shaft and axially slidably thereon, a lug on the disk engageable With the pin, and axial lugs on the disk, a driven member comprising a rotary axially immovable sleeve on the second shaft provided With slots slidably engageable With the axial lugs, and a gear fast to the sleeve meshing With the pinion, and means for axially sliding the disk.

6. In combination with the body, the engine case, the fan, the fan belt, and the steering post of an automobile, ofa bracket on the engine case, a signal comprising a frame supported by the bracket, and a sound outlet, a diaphragm in the frame, a rotatable vibrator supported in the frame in operative engagement With the diaphragm, a shaft fixed in the frame adjacent the vibrator, a driven member rotatably mounted on the fixed shaft for actuating the vibrator, a pulley loosely mounted on the fixed shaft engaging the fan belt, a projection on the face of the pulley, a disk rotatably mounted on the fixed shaft and axially slidable thereon, lugs on the disk engaging VJche driven member, a shifting lever pivotally supported intermediate its length upon the frame 'engaging the disk, a lever pivoted to the body, a rod connecting the levers, a collar on the steering post, a rod slidably supported in the collar engaging the second lever, a knob on the slidable rod, and a spring interposed betWeen the knob and the collar.

In testimony whereof I have aiiixed my signature.

LEONARD C. LESTER.

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