US62847A - Improvement in oak bkakes - Google Patents

Description

3 SheetsfSheet 1.

PatentedA Mar. 12,v 1867.

fn van for. ffm w O o QI O o N a @n o 3 sr ,A n MII POI l|||| w. f o v Oo RN@ uw Q. a o o O o i l .B C mw O O L 3 Sheets-Sheet 3.

u HIGLEY.

Car Starter.

Patented Mar. 12, 1867.

[22 van fa r;

owdwy J Jwz N.PE|ERS, PHO FHE. WASHINGTON D C @ditch faire atitt @fitta IMPROVEMENT 1N GAR BRAKES.

@Llp tlgitule referrer tu in tlgis ltetta glntmt mit mating pitt uf 4tige sume,

TO ALL WHOM IT .MAY CONCERN:

Be it known that I, `AARON HIGLEY, of South Bend, county of St. Joseph, and State of Indiana, have invented certain new and useful Improvements in Railroad Car Brakes; and I do hereby declare that the following is a full and completedescription of the constructionand operation of the same, reference'beingliarl to the accompanying drawing, making a part of this specification, in which- Figure 1 is a top view. l

Figure 2 a bottom view.

Figure 3 is a transverse vertical section, taken in the line Z, fig. 1.

Figure 4 is a part of a longitudinal viewof the truck, taken in line 2;

Like letters and figures of reference referto like parts in the several views.

The device for the bra-hing operation at one end of the car'is substantially the same as at the other, i

being constructed and operated exactly alike. l

In the drawings, A represents the frame; C is a framework connected to the shaft of the wheels, and to which some of the apparatus for braking the car is connected; this frame being heldin place on the shaft by means of the collars al.v Cn the shaft a, and near the centre, is a friction-clutch coupling D, D being the shell,vand Dthe conc. To the side of tlieshell is fastened a ratchet-wheel, g, the ratchet and shell being both permanently'attached to the shaft a, and turning with it,'while the cone D and pulleys 0,11 each side are loose on the shaft. F is a pulley forming part of the c one, which is used to take up the chain e. 8 is a stop fastened to the side ofcoue Dand'forlninga part of it, so'that the coneland pulley F can turn hut one way. E is a pulley close to the ratchet, on theshaft a, to which are pivoted the dog I and'chains c and O. And when the brake is in operation 'this pulley turns in theopposite direction from pulley F aud cone D', which will be more fully described hereafter in the operation. Cr is a lclutch lever pivoted tothe frame C at P', lthe end clutching around the groove g next the pulley F. Mis a cone pulley pivoted to the frame C at C. The chain 15 is,

fastene'd'to the small part of pnl-ley M, and to the lever Gr.V 'From the large part of the cone'pulley M extends the chain R to shaft, C, (iig. 3,) of windlassl7i Connected to chain R, at 20, is another chain, S, which passes around the pulley L, t-hen around` the pulley 3, and is fastened to the windlass 6. N is aspring fastened to tho frame C, witlrone end against the lever Gr to force-it bach from the fra-tue. H is aber that rests upon or has its bearings on the frame C at Q.l .Around this bar is-coiled the spring H, att-he end of which is the swivel J, To one end of this swivel is'fastened the chain e, the other end of the chain being fastened to the pulley F. To the other end of the swivel J, at I), is fastened one end ofehain a, the other end being fastened' to the pulley E. Near'the same place on pulley E is fastened the chain O, passinglnearly around the pulley in 'the opposite direction, and. over the pulley K, then around the lpulley P, and is made fast to swivel J. Figurev 4 shows the ratchet when the brake is not in use; the dog I being held out of the ratchet by means of' the upper end of the dog hitting the strip I8. -To the windlass 7 are fastened two i'atclxetuvlieels, ratchet-whecl X having a dog to catch into it, made in the ordinary way; diig l (shown in iig. 2) is pivoted near thocentre to the fraine A., one end catching into the ratchet-wheel 2,and the other end being pivoted to astirrup by which the car is drawn. Spring t forces the stirrup back when the team is not drawing, and holds the dog I in Contact with the ratchet 2, which will be described hereafter, the whole beingopcrated las follows: i

When the car is going in the direction indicated by the arrow 25,' and it is desired to stop it, the windlass at the arrow 26 is turned, winding the chain R around the shaft C. This turns the-.cone pulley M, thus drawing the end of the clutch lever G, to which the chain I5 is fastened, towards the frame C; the other end being pivoted, as before stated, forces the lclutch along, and this hitting'against the pulley F forces the conc D into the shell D so tightly, and creating so much friction, that when the wheels and shell D are turningr that the cone-D and pulleyF of said cone turn with them, when -if it was not held so tight it would not turn at all g but as it turns with the shell D the chain e, which 'is attached to the said pulley F and swivel J, will wind around this pulley and contract the spring I-I. 'lhe chain O being fastened to the suine swivel on the other sidqandpassing., back around the pulley P, .and over the pulley K, then passing around the pulley E up to the top and made fast, will turn the pulley E in the opposite Vdirect-ionfroui the pulley F, when the swivel J and spring lI are drawn up by -the pulley F. 'lll'e chain vc being fastened tothe same swivel and to the pulley E, will at the saine time be woundon the pulley E in theopposite directionfroln the chain e. The dog I will catch into the ratchet y by the action of the spring V, under the other end of the dog. The windla-Tss being heldirmlyby the two dogs, and ratchet X and 2, thus the wheels are stopped, not being permitted to turn, and the power or force expended in braking contracts the spring H, which power is held in reserve by the means described, to be applied to start or aid in starting the car again after it has been stopped. lVheu it is desired to start the car again, the dog y is thrown out of ratchet-wheel X, bythe driver, and the starting of the team pulls out the dog 1 from the ratchet 2, and this allows the windlass to turn, and the spring Npr`essing against the lever G, forces it back from the frame, andmdves the cone out of the shell again; this lets the chain e loose, and leaves all the strain of the spring H n the chain c, which being fast to thepull'ey E, and the dog I catching into the ratchet g, and being pivoted to the pulley E, prevents the pulley from turning without turning the shaft a. Asthe spring H expands, the shaft a and wheels B are turned, thus start-ing or helping to start it. In winding up the ch'ain F, vthe resistance of the spring H, as it is-contrneted,itends to stop the Wheels, and in this way the bralcingthe car is accomplished. When it is desired to stop the cui', without accumulating power 'to start again in,y the same direction `it wus going, as when the car is at theeud of the road74 r if it is necessary to stop'very quickly, to prevent an accident, the Windlass 6 is used; this operates on the opposite brake from windlass 7, and as the stop 8 fastened to cone D will hit against the frame C, and not being abl'e to turn in the least, the car can be stopped without contracting spring H, and very quickly. The object of the ratchet X on the windlass 7 is to hold the winrllnss from turning if thc team should starrt before itis .desired they should as without it they might start enough to pull out the dog l, and thus loosen the brake, and the Car start and do some damage. On ardown yade, either or both brukes cau be used, und brake 'just hard enough to give the our the desired motion.

What I claim as my invention, and desire to secure by Let-ters Patent, is

In the arrangement of arrailroad car brake and starter, the ratchets X and 2, in combination with Windlass T, substantially as and for the purpose set forth.

AARON HIGLEY.

Witnesses:

l` C. CONNOLLY,

S. S. FAHXEsrccu. i

Images