US1139839A - Safety device. - Google Patents

Description

M. J. BOTTINELLI.

SAFETY DEVICE.

APPLICATION FILED APILQ, I9I4.

1,139,839 I PaIenIeII May 18, 1915.

"ff-)Mlm IVI. J. BOTTINELLI.

SAFETY DEVICE.

APPLlcATloN FILED APR.9, 1914.

MH L H 'UNITED STATES ATENT OFFICE.

MICHELEJ. Bo'rTINEILLr, or mannose, inane.

SAFETY envien.'

To all whom it may concern:

Be' it known that '1,7MICHELE Borri NELLI, a citizen of the UnitedStates, residing at Kellogg, inthe county/"of- Shoshone and Stateof Idaho, have invented' new and useful improvements ina Safety Deaf'ices,I of

which the following is a specification.

Thisinvention relates to a safety device.

.The purpose of the present inyiitiii to produce a simple, substantial,and cheaply manufactured safety device, Zwhich is constructed with the object in yiew of averjting such accidents as are liable tdoccilr in connection with the breaking "f cables in mines, or the parting of belts in machine shops when theV lacingv gives way. rlhe breaking of a cable is generally preceded by the wearing away or breaking of' one or more of the strands of which it is com osed, vand the parting of a belt is similar y preceded' by a weakening or parting of 1the lacing which, if taken in time, would prevent the final break and accident'sthat are lliabletoy take place in connection with,same.A

An object of the present invention is to provide a safety device which is capable of detecting any 'flaw in the cable or belt and give an audible or visible sign inconnection therewith. The operator will thus "be warnedA in suiiicient timeto shut down and make the necessary repairs. Other objects will hereinafter appear.

The invention"co1 1sists of the parts and the construction and combination of parts as hereinafter more ez fully describedv and.

enlarged view of the releasing device. Fig.

3 is a diagrammatic vie'w,"`s howing the electrical circuit controlled by the safety device.

Referringl to the drawings, A. indicates a pulley; B Va belt; and C the safety device; as applied. Ihesafetydevice in general conf sists of a lever 2, pivotally mounted,`asat 3, in a *suitable frame or standard 4. 'Secured in one'end of the lever isa feeler rod 5, composed of a short length of thin wire, and formed on the opposite end ofthe lever is a hooklike projection 6 which isx adapted to interlock with a notch 7 formed in a pulley 8 which is journaled, asat 9, inthe upelper end of the standard 4. The standard 1n 'y this instance is represented by Va pipe or tube which is carried by an electric switch,

Specicatien of Letters Patent.

Patented May 1S, 1915. @wenn es een we Seel 1e este t imitated at 1o. .This Switch'consists Qf a base '10, upon which is mounted a pair ot :ber plates 'l1 and' 12, and.l interposed' between said plates lisa glass tube 13,said plates, tube, and base being secured together by bolts '14.

Sflied, t0 plete ,11, interior 0f tube is Aa'pair of spring contact members 15, and suspended by a cord 16, secured tothe pulley 8, isa tube 17,' throigh the'lower ,end

l@le

of which projects a pointed carbonf'rd 1 8. z The tube is otherwise filled with aA heavy material, suchas lead or the like, indicated 'at 19?, to lgive it sufficient weight, when re-f leased, to force thecarbon point. 18 'in be@ tween the points of the spring members i to close a circuit through same=- 1 Fig. 3 is a diagram showing the position -of the switch D in the electrical circuit controlled saine. Circuit can be traced as follows: 2 0 indicates a battery,

or other suitablesource of electric supply, "if" 21 indicates the' .Ostseite Wire, and 22 indcates the return; a L suitable forni of signaling device 23, such as a bell, light or other device, being connectedy on wire22. 'Switch the main circuit wires 2l and 22 respectively and is, therefore, adapted toclose apirclit through said wires, vwlneifi short circuited j 'D is Conneiited-thbugh W'lls 24 and 25.*: with carbon 18'. A; circuit thus close d will eitl1' e l*' i ring the bell, when such a device 1s used, di's.

play a visible signal, or perform other du- 'I i y Aties for which it 'may' be intended. ";V Silitable number lof switches, such as indicated at 26, may alsobe in a circuit and the purr. Se en@ sperati@ will be' later" ele-` scribed. I

The operation of the safet device, ltogether with 'switch D lcontrol ed by same,

AThe pulley thus released Will bev free to turn and will consequently permit carbon v18 to drop down into engagement with the spring contact', thus closing the circuit .through wires 24 and 25 which connect with the'main circuit wires 21 and 22. A circuit is thus established through battery, or any other source of supply, causing an alarm to be given either by a bell 23, or any other device, which `may be controlled by said circuit. JFor instance, Where an electric motor drive is used in a machine shop, as indicated at 30, it Would be possible to connect switch D in circuit with a magnet 3l, or like device, Which could be connected with the trip switch 32 on the main circuit. rllhe closing of the circuit through switch D Would in that instance actuate the trip switch and immediately stop the motor. rlthe operator Will thus immediately know that a strand has parted, or that the belt lacing is beginning to give Way and will thus be given opportunity to malle the necessary repairs.

The eeler arm, indicated at 5, can be placed in very close proximity to the face off a rope transmission or a belt and the arm can in all instances be suiliciently'long to cover the tace orp the belt or transmission. 'lhe safety device, With connected switch, may be placed practically in any position as it is only necessary to lengthen or shorten the standard el to suit various conditions of height. l

A suitable number o switches, such as indicated at 26, may also beplaced on the main circuit indicated at 2l and 22. 'lliese are particularly useful Where an electric motor drive is used and controlled by switch l) ltor instance, in the case Where a Workmans clothing becomes entangled in a set orP gears or Where some similar accident should take place it Would be very easy for a fellow Workman seeing the predicament to close one of these small switches nearest to him. rl`he machinery would thus imanediately come to a standstill without the operator running to the motor rooin to throviT out the main switch. Also it a number o' nien are doing` repair Work in the plant While it is shut down for repairs, one or lore of these switches may be closed, ano. with one of these switches closed it will be impossible for anyone to start the motor and lriil, or even injure, the m While theyare busily engaged Wita. ufo'flr.

he materials and finish of the sevez parte of the device are such as experience and judgment of the manufacturer may dictate.1 f

T '.l. '3 lL .1." J. 1 '2 i vvish it understood that various cna in form, proportions and minor de construction may be resorted to Within scope ors the appended claims, and not vvish to limit mysel to the specific sign and construction here shown.

standard, a iteeler arm secured on one end of Having thus described my invention, what ll claim and desire to secure by Letters Patent is-A El, lin' a safety device, the combination of a standard, an arm pivotally mounted in said standard, a eeler arm secured on one end ozt thepivoted am, a hook termed on the other endfor" the arm, a pulley journaled in the standard having a catch termed thereon with which the hooked end of the arm is adapted to engage, and means controlled by the pulley for closing anelectric circuit.

2. ln a safety device,'the combination of a standard, an arm pivotally mounted in said Standard, a eeler arm secured on one end 7 ot the pivoted arm, a hoolt formed on the other end of the arm, a pulley journaled in the standard having a catch formed thereon with which the hooked end of the arm is adapted to engage, a coro secured to the a pulley, a Weight on the cord, and means controlled by the Weight for closing` elec ic circuit.

3. a safety device, the combination of a standard, arm pivot-ally mounted in 3 said standard, eeler secured on one end of pivoted arm, a hook formed on the other end of the arm, a pulley journaled in standard having catch formed thereon which the hooked end of the arm is o adapted to engage, a cord secured to the pulley, a Weight on the cord, a carbon secured on the end orc the Weight, a pair of flexible contact members with Which the carbon is adapted to engage, and an electric circuit controlled by said contact members.

d. ln a safety device, the combination of a standard, an arm pivot-ally mounted in the the standard, latch engagea-ble W'th the other ot arm, means controlled by the arm for by said latch when released closing` an electric circuit. 5. a safety device, a standard, pivot-ank;

the -st closing; an electric cro ln testimonv Where@ -J nave 'the presence o; tvvo suoeciA Y non

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