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Publication numberUS1746163 A
Publication typeGrant
Publication dateFeb 4, 1930
Filing dateJan 5, 1929
Priority dateJan 5, 1929
Publication numberUS 1746163 A, US 1746163A, US-A-1746163, US1746163 A, US1746163A
InventorsPerkins George B
Original AssigneePerkins George B
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Safety device
US 1746163 A
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Description  (OCR text may contain errors)

Feb. 4, 1930. 'PERKlNS 1,746,163

SAFETY DEVICE Filed Jan. 5, 1929 INVENTOR ATTORNEY 3 I A further object of the invention consists in the provision of cable, etc, is broken 1 Figure 2is' atop plan view thereof.

' J 1 Tongues 15, projecting at right angles and at intermediatepoints in the lengths of the I 1. Patented V 14 I 'UN lT-ED STA fGEoRGn B. PERKINS, or: EUREKA, oononn'no SAFETY nnvrcn Application filed January 5,

, This invention relates to, safety devices 7 primarily 'adapted for use upon mine and other'cars traveling uponinclined driveways. An object'of the invention 'comprehends a 1 Another ob ect ofthe invent-ion contem- 5 gripping element for the vehicle.

plates a yielding element for the gripping element'to normally induce same to occupy an operative position.

aconnection between the vehicle draft appliance and "the'gripping element whereby the latter will be shifted for active use when the tongue, king bolt, to prevent retrograde movement of the'vehicle. V r I With the above and other objects in view, the invention further consists of the following novel features and details of construc- 20 tion to be hereinafter more fully described, illustrated in the accompanying drawing and I pointed out in'th'e appended claim. 7

In the drawing I Figure 1 is a side elevation of the invention.

Referring to: the drawingin detail, wherein I like characters of reference denote corre-'v qsponding parts, the referencecharacter 10" indicates generally'rafmine or other car traveling upon rails 11 and supported by ties v Asheretofore experienced, the lives of mine Workers in mineshafts are in constant jeopardy by the-possibilities of the breaking r of cables, tongues and other draft appliances .for the cars. p

The present invention has been primarily 7 designed to overcome this grave possibility r t and which compr ses an equalizer bar, such as indicated at 13,v having its ends slidably mounted Within slots14 in the'side walls of the cars. I

equalizer bars 13, are projected through the i I adjacent end Walls of the. carsfor connection with cables or other draft appliances16.

The connection between theequalizer bar 13' and the tongue 15 comprises an extension, 15 projecting from the innermost end of the vtongue and transversely through the intertheitongue 15' at the intersection of the, ex

mounted for lro'c king movement, as at "18,1 upon trunni'ons 18: having -18 o fupofn the innermost ends thereof and Secured-to the inner sides of the car, and upon todispose their outermost free ends downthe f-t-racks.

' and at right angles reception within a yoke member 20, included upon one end of aturn buckle rod 21; having as" iron ore, etc;

bodies and in line wit-hthat ofthe' turn buckle 3 position.

termediate portions spaced therefrom to r f the dogs or elements therebetween but to restrict 1929, Serial No. 330,654.,

mediate portion of the-equalizer bar'asshown. in Figure 2 ofitl'iedrawing. A shoulder15 preferably ofannular, formation, carried by tension 15 therefor, is adaptedto abut the ad acent outer surface o'f'the jbar 13 about 7' .the opening therein receiving said'extension.

. 1A nut15 -nand Washer 1'5 are carried upon the innermost protruding and threaded end- 7 I ofthe extension,,15 to retain the. tongue against displacement and provide a'detachi able connection therebetween.

Holding or gripping-dogs 17 ;pivota1ly,

attaching flanges theout er side'sof themine cars, are adapted Wardly therefrom and between theties 12 of 'Arms 19, extended from the the "dogs or elements 17 pivoted portions of thereto, are. adapted for Q-connectio'n Wltl'l the 'outermost fpro ecting j end ofrthe equalizer bar 13, through the instrumentality of: cables',if1:desired..

'As'shown in Figure 2, the devicesfmay'be. a employed in duplicate to engage'the rail ties 0, uponthe opposite sides of the carsinasmuch 1 as the cars are subjected to-heavy loads, such V r, Attaching plates 22', also 7 outerjside's of the mine car carried upon, the

rods 21, areqadapted, for connection with 'redogs or elements 17 will be normally induced Straps 24, their ends secured to the outer sides of the car bodies, have their in-' per-v mit passage and rocking movement 0 movement in either direction beyond a predetermined degree. z o After the cars have been loaded at the bot-,

draft appliance is employed at the top of the mine shaft to wind up the cable 16 having connection with the tongue 15. The draft action will overcome the tension of the springs 23 whereby the dogs or elements 17 will be disposed parallel with the sides of the car in view of the arm and turn buckle rod connections with the equalizer bar. Inthe event the cable should break or something should happen to the donkey engine, the slack draft would release tension against the springs 23 which would then contract to shift the dogs or elements 17 to occupy the Figure 1 position. The outermost ends of the dogs or el'e-r ments would engage the adjacent sides of the ties 12 to prevent retrograde movement of the cars down the mine shaft;

A pin, such as indicated at 25, carried upon one endof the car adjacent the tongue 15, is adapted for selective receptionwithin an opening 26 therein when it is desired to hold the tongue extended, with no draft action thereon, and the dogs 17 in elevated position. Such circumstance may arise when the car was damaged and must be run onto a siding. Said pin would obviouslydropom of the opening 26 when a pull was exercised upon the tongue by the cable 16.

The invention is susceptible of various changes in its form, proportions minor details of construction, and the right is herein reserved to make such changes as properly fall within the scope of the appended claim.

Having described the invention, what is claimed is A safety devicefor mine ears comprising an equalizer bar slidably mounted within the sides thereof, a tongue carried by the bar and projecting throi'lgh one end of the car for corn nection with a draft appliance, dogs rockingly mounted upon thesides of the car for connection at their opposite ends with the ties of the car tracks, arms carried by and projecting froin'the pivotal connections for i the dogs, rods establishing connection between theends of thc equalizer bar and arms of the dog's, spring-means carried by the cars and having connection with the rods to yieldingly induce said dogs to engage the ties of the tracks for the when the draft appliance is rendered ii'ioper'ative, and straps arranged upon the car to restrict rocking movement of the dogs beyond predetermined degrees.

r In testimtny whereof I affix my signature.

H enonenprnantrts

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5142991 *Jun 14, 1991Sep 1, 1992Access Mobility Systems, Inc.Inclined rail trolley safety device with lever operated cable shieve for taking up slack in the cable to control trolley drive
US5601259 *Mar 26, 1996Feb 11, 1997Boda Industries, Inc.Two-way safety trip for railway vehicles
U.S. Classification188/127, 188/61, 188/38
International ClassificationB61H9/04, B61H9/00
Cooperative ClassificationB61H9/04
European ClassificationB61H9/04