US66328A

US66328A - Improved bailway ohaie

Info

Publication number: US66328A
Authority: US
Publication date: 1867-07-02
Anticipated expiration: 1884-07-02

Description

I"T.VC.'HARGRAVESQ No. 66,328.` A l www,

@nimh tstzs strnt @Hirn T. c. H'A'RGRAVE, 0F BOSTON, MASSACHUSETTS. Later; farmelo; 66,328, dated July 2, 1867( wmrsovsn RAILWAY cam.

T0 ALLWHOM 1'I MAY CONCERN:

' -iBe it known that I, T. C. HARGRAVE, of Boston, in the county cf'Suhlk, and Stoteof Massachusetts, have'in'vented en Improvement in'Railwny Truck-Joints; und.; do' hereby declare that the following, token in 4connection withthe drawings which'accompnny and form part of this specification', is a description of myginventionsuicient to enable those skilled i n the nrt topractise it.

Thisinvention relates to means for securing trnck-rails in their chu-irs, especiallywhen :rjoint of the track made atjtwo hdjaccnt ends'of rcils occursat a cha.ir, in which case thc chair and the :nea-ns for securing *the mils therein fish the joint. The 'invention consists in combining with a. track-choir and the track-rails, a

'z-'long wedge und a yielding detniner, arranged to operate together s o -ns to prevent displacement of the wedge by ordinary wenr and jar of the trnck,fnnd yet allow the wedge to be driven in either direction so as to tighten o r loosen 'the track-rail in its choir according as the wedge is driven in one or the other direction. The drawings represent two forms or modifications` of embodiments of my invention, Figure 1 showing in plan 'a chair, its rail, and my additions thereto, which are also shown in section in Figure?, end Figure 3 being4 .likesen similar plan,l the section through which .is shoyllLct Figure 4.

In figs. 1 and'2 the chuir body is marked a', the ruil 6, the wedge c, the detniner d, the spring et the bach; of the detainer e, sgi-.d spring being prei'erohly of rubber. In figs. 1 and 2 the wedge is shown :is a iiuttened taper tube, \vith)indentntio1is on the side adjacent to thedetainer, which hos cor-responding projections thereon,

which act on the wedge somewhat in the manncriof' pnwls on the teeth of a rock or ratchet. "The other side of the 'wedge comes directly into contuctwith one side of the rails, the said side thereof being forced by the wedge into contact'with thelchair, so that when njoint of therails occurs in a chair,it und the wedge iish the joint. This wedge I prefer to marke as a. cest tube of iron, the necessary indentatons bein'gmade in the mould. The detainer maybe either of wrought orrcost iron, :ind a. recess of suitable .size for thereception of it and the spring e is made in the chair, which prevents thcmrfro'm moving longitudinally with. the wedge. The spring always keeps the projections on the detaiuer in mesh or gear with the indentntions` in the wedge, except when the wedge is purposely andpowerfully driven by blows applied to'one of its ends, when the inclined form of the'said projections and indentations causes thejspring to yield enough to permit slightlongitudnnl movements of the wedge. The construction shown in figs. Send 4 is similarto that shown in figs. 1 und 2, except that the wedge,V instead of acting directly against the sideof the rail,A acts against a block or fish piece, which ubuts against the side of the-'raihsuid piece being murkcdfin the drawing. l l I .Amongst the adi'antag'es of this construction, it may be mentioned that in laying or repairing tracks, no .screws or screw-bolts or wrenches are 1 i eeded, the whole operation of vconfining the rails in their chairs being e'ected by blows from a. laborer-s hammer, and the fastening is cheep and eiicient.

I claim, in' combination with the chairs and rails `of' arailwhy track, anindented wedge and spring detainer, erranged tri-operate together substantially as described.

' T. C; HABLGRAVE.

Witnesses:

lJ. -B. Gossr, Fnimcxs Gouw.