US528019A - Brake - Google Patents

Description

(No Model.) A 2 Sheets-Sheet 1..

C.ONSGORD.

BRAKE.

No. 528,019. Patented 0401;. 2s, 1894 TH: Norms PETERS ca. PHmmJ1'Nr1,wAsmNGToN4 n. c.-

(No Model.) 2 sheets-'sheet 2.

G. C.i ONSGORD.

BRAKE;

Patented 001;. 23, 1894..V

Wihysses NITED STATES cHRIsTnN o. oNsGoRD, or wnsT DULUTH, MINNESOTA.

BRAKE.

SPECIFICATION formingpart of Letters Patent No. 528,019, dated October .23, 1894.

i `.apparition inea 112.511.1894.

To aZZ whom/ imctyconoern:

Be it known that I, OHRISTEN C. ONsGoRD, a citizen of the United States, residing at West Duluth, in thecounty of St. Louis and State of Minnesota, have Vinvented a new and useful Brake, `of=which the following is a specitcation.` f i My invention relates to an improvement in that class of `railway brakes which are designed for use `on inclined railway cars; and the object sought to be attained is to provide an appliance whereby the brake will be automatically applied as soon as the car or cars become in danger of racing. This end I attain by providing brake mechanism which has a normal tendency to operate and which is held inactive by a cable arranged to be broken when the accident tothe driving cable. takes place.

1n the accompanying drawings: Figure 1 represents a longitudinal section of a car supplied with my improvements; Fig. 2, a bottom p plan; Fig. 3,a diagrammatical View illustrating the arrangement of cables and their relation to the brake; Fig. 4, a detail perspective of the rope-grip for the safety-rope; Fig. 5, a cross-section of the machine takenlongitudinally with oneof the axles. f i.

The reference numeral l'indicatesthe car, which maybe of any `preferred construction, and which is provided with the two revolving axles 2, to which the wheels 3 are rigidly secured.

4. indicates the drive-cable, which is secured to the end of the car and by which the can is driven. This cable 4. has its remaining end connected to a secondcar, as shown in Fig. 3, so that as the first car ascends the incline the second car` will descend, and vice versa.

The cable et is connected, at a point between its ends to a mechanism for applying power thereto, as will be understood and as indicated in Fig. 3.

5 indicates the safety-cable which is one for each track and which `is securely fastened to some stationary object at each end. The purpose of this cable 5 is to furnish a means for arresting the racing ofthe cars whenthe cable 4. breaks, as suchcable oftenldoes.

Secured to the under side of the car 1, and

Serial No. 509.680. `(No model.)` p

at each end thereof, are the frames 6, which project downwardlyand thence horizontally and are braced by the rods 7. Rigidly secured to the upperside of the horizontal portion of the frames 6, and at about the middle thereof, are the cable-gri ps 8, which Vconsist of a base-plate having the rollers 9 ateach end and the side plates 10 arising one from each side. The side-plates 10 are formed with an arch 11 attheir upper ends, and these `arches are formed with internally-threaded openings 12, through which the threade shafts 13 extend.

The shafts 13 have their lower ends revolubly connected to the shoes 14., which are arranged between the side-plates 10, and

movable vertically therein toward and from the base-plate. der theshoe 14, the rope 5 is adapted to pass,

Over the base-plate andi unand when the shoes are raised the car will be allowed free movement on the cable. The shafts 13 extend vertically from the grips S and through theiooringof the car, and have their upper ends provided with the operating-` wheels 15, by which they may be turned and the shoesmade to engage the cable 5. `This will result in a connection between the two parts and a consequent stopping of the car.

Rigidly secured to one of the shafts 13, at a pointbelow the fiooring of the car, is the pulley 16, which is grooved on its periphery and adapted for the passage of the rope 17. The rope 17 is wrapped around the pulley 16 twice, and is then passed over the idler 18 and around the drum 19, which is loosely` mounted on one of the axles 2. The drum 19 is held incapable oflateral movement by means of the pin 20, and washer 21, and by means ofthe collar 22, formed integral with or rigidly secured to the axle. This drum is formedby preference, of two sections bolted adapted to receive the longitudinal rib 29 of the axle upon which the clutch is mounted,

30 is loosely mounted in place and lis formed of two sections, as are the companion devices.

Rigidly secured to the collar 30 are the forked arms 31 of the lever 32, which lever is fulcrumed to the pin 33, fixed, in turn, to the plate 34. The plate 34 is rigidly'secured to 'the framework of the car, as shown in the drawings. Mounted on the axle having the above-described clutch mechanism is the spiral spring 35, which is held against the clutch 27 by means of the pin fand collar 36,

and has a collar 37 at its remaining end.'

This latter collar is pressedagainst fthe clutch 27, thereby giving it a tendency toward the i drum 1.9.

The lever 32 has its `free end bent latereral'ly and connected to the cable 38, which i passes between the pulleys 39-of Ythe beam 40, whereby upon pulling on the cable '38 the lever will be swung on its fulcrum so as to i into engagement with the rope 5, for a purpose that will be more fully described here- Connected to Athe cable 38 is the -reinafter. tractile spiral spring-41, and this Ahas its remaining-end connected to 4the small'cab'le 42,

which proceeds along parallel with the/cable 4, and isconnected a-t its remaining end to mechanism similar to that-just described and arranged on the carto which the remaining i will engage the dr-um and `cause the grip to end of lthe lcable 4 is connected.

By reference t-o the drawings, particularly Fig. 3 the operation vof my invention may be traced as follows: Supposing that the cars are being propelled by the power -in conneci tion with the rope 4, and that the rope l4 breaks.

cline. As soon as such movement is begun, however, the cable 42 will be subjected to unduestrain, which will resul-'t i-n its fracture, f

and Aa consequent release of the lever 32, al-

lowing the clutch 27 and drum 19'to engage.

This will cause the rope 17 to operate, and in so doing revolve the shaft 13, to ywhich it "is connected. .As the shaft 13 revolves, 'the This wil-l revolve the pulley of vthel This would release them and makei it possible for them to race vdown the ini be kept taut, and consequently in engagement. The purpose of the spring 41 is to give the cable 42 a limited amount of elasticity, so that the usual jars and jerks attending the movement of the cars will not break it.

While I have described my invention as applied to a double-track system, it will be seen that its use is not so limited, since it could be used with equal vfacility on a single track, by connecting the cable 42 to a drum winding inruuison with the winding mechanism of the cable 4.

Having described my invention, what I claim is 1. The combination of a car, a propelling cable connected thereto, astationarycable by which/the Icar passes, -a grip on the car 4and roperating in connection ywith the stationary cable, said .grip being connected with a drum mounted on the car-axle, a clutch for fixing the drum to the axle and having a normal tendencyT toward the drum, and a third cable connected to the clutch fand operating'to hold it yout of engagement with the drum,the klastnamed cable being adapted, upon the break1 ing :of Athe propelling cablato break and release the clutch, thereby operating lthe :grip to bind with the stationary cable andstop the car, substantially as described.

A2. The'combinationlof a car, a propelling cable connected thereto, a grip fon the car,:a stationary cable passing through the grip, a drum mounted loosely on one of thefcar-faxles, a clutch fixed to the faXle and having a niormal tendency to engage the drum, a bent le1 ver connected to the clutch, a cable connected to the lever and adapted 'to khold the clutch from engagement with the drum, and ya belt connecting the ldrum and lgrip whereby `when the last-named v'cable is broken, upon the breaking `of the propellfingcable, the clutch lon an inclined plane, a propelling rope iconnected to each at yits ends, a grip -on veach car,

,a `stationary rope for-each grip, means ,for applying lthe grip, said means having a normal tendency to operate, and a third :cable 'connected to each car-and operating to holdfsaid means inactive, whereby upon the breaking of the propelling cable the third cable will break also a-nd allow the grip 'tobind -with the stationary cable, thereby stopping the car, substantially as described.

4. The combination of a car, a framefdependingtherefrom, a threaded-shaft arranged above the frame, a gripshoe on the vsha-ft and adapted to bind ragainst the iframe, astationary rope passing between the frame and the shoe, a drum mountedloosely on the car-axle, abelt passing over the drum and shaft, whereby the shaft is operated, a clutch fixed to the shaft and having a normal tendency to en- IOO IIO

gage the drum, a cable connected tothe clutch and operating to hold the same from engagement with the drum, a propelling cable connected to the car, whereby upon the break ing of the propelling cable the clutch-cable will break and allow the drum to operate the shoe, thus gripping the stationary cable and stopping the oar, substantially as described.

In tectimony that I claim the foregoing'` as my own I have hereto a'ixed my signature 1n xo the presence of two Witnesses.

CHRIS'IEN C. ONSGORD.

Witn esses:

HARVEY P. SMITH,

S. E. PETERSON.

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