US1254295A - Power-shovel. - Google Patents

Description

C. L WESTN.

POWER SHVEL MPL10/mon man mw. 2o. m15.

1,254,295, i Fatend Jan. 22? MHS.

mi yyyyyyyyy um CLARENCE l omiten STATE.

e. WESTON, F Mumien, omo, essmno'efmo BALL-ENGINE r:oin?Mirte.A or

ERIE, yEnNsYLvANIA, A 'ooiwomrrxon'oy PENNSYLVANIA..

y ,rovine-slimme.

io ozll, ...fio/f..'. vll/ay ufo/feiern.'

e il' known. that l Umnmien l5. WESTON, n emmen of tbeylllnitetl States, residing at Mau-ion, in ille county 'of Marion and State oI Ohio, have invented vnew and useful linproveinents in Poiveieiliovele, of which the following ie e Slieeitieation.

Thisv iin-'entlon 'relates to lpow-nf' shovels und eoneiete-ingertain improvements in the 'atmstrnetion .thereof ne will be hereinafter fully described Unl'1Jmnted ont in tli'eolznins.- ower shovels :is now commonly conetruetefl n. (flipper stiel( i v(. vpeifaited inv relaition to n boom, This is accomplished by 'iiiin'itiiigifeliijiper'slinft on tliebo'n'i' zi'ntl leeenring billions-'to the elliper Shaft which Operate in rai-.lie on the ilipper stick. These pinion's` .from the nature of their relations are limited' in width und are subjected to'- enel] exceptional strains :le to nmke 1t very difficult, 'in ectyaillnost i'inl'ioesilrle .te so ee- 4 cure tliein te-tlfw-'sl'iifiper slmi't ne to prevent their loosening initier the conditions of use. Theobjeet of the present invention is to obvifte this dilienlty.

The invention 'illustrated in the zieeoin piny-ing drawings ne follows- Figure l sl )we :i sideelev'zition of frontend of a, power shovel.

Fig. 2 @section on the line 2 2 in Fig. 1. Fig.y S si detzieliecl View, partly in section, of the Shipper Shaft.

`I`1 lnirls the. freine of the shovel, S2v the wheels on which it is mounted, 3 the turn table, and 4 the boom., the boom be1ng connected with and enpljiorteol by the turn table.

in the usual mzmnei'. Tlie boom ordinarilyl is foi-metil with two side members and the dlpp'er stiel( 5 eomnmnlyT operatesbetween.

these Side members. Diln'ier sticks also are sometimes' formed. in pairs, :md asv shown isv so formed.- The dipperG is secured tothe flipper et/fiek. The hoisting cable 7 ie Secured to tbe dipper and runs over-a. block 8 at the upperend. of the boom in the usual manner,

. the cable lbeing carried beek to the power n'ieolmnisxi'i (not Shown).

l Shipper 'slur-ft bearings 9 are mounted on the side members Aof' the boom vamil the shipper Shaft 10 iS jonrnaled in these bearings extending aeross the space between the side members :ind slightly outside of :it least one of the side members. The shipper shaft lia-s the gears 11, tlieee fears being arranged as;

shownbn the ebelt between the bearings 9.

'I Patented5m22.191s. i

Apncationiixenuaryeo,mit. sei-mineeese.

A retaining inel'nl-)er or yoke ylfiis j on1-- nolei'l on the shipper -sliait between-tlieffgezirs'y 11 :ind'in the construction.;elioW1i, tende ont w ard] y' between I the f i'nembeii'is oftheclip.' per Stick. and has the lateral projeetions 15 wliielr forni n' sliding-eiigngement vWith tliel flipper stick incl remintlie dipper stick in position WitlLi-elzition"toftlie' 'gears so o s toV 7U' maintain the rzte-lie anti pinions in mesh( geen.' 16' is eeenredtotlie outer end. of the shaft and this driven by the crowding engine 17 through any conve nientfrneebat-` nism. n

TVliere 'the clipper stick formed with thus forming :i rolling support-for the' dp- V "two members und two shipper shaft gears or ditions, j it will; be seen? o'n'e "gearis, forced. in. one direction-.ancltlie 'other geen inthe 'oppio si te di reeti on when b lie dipperf is' subjecte to side strain. 'lfliisjwith the .Otlienstrfiin to wl'ii eli these gears `aire snbjeted l`Ineke' it almost innnoseibe to 'sosecurethem to the" shaft as to miiintiiin allein 'nfeA I Jos'itifm fixed` with relation totiieeheftf. Various eXpedi- 90 ents h iv'e been. attempted for correcting this trouble' @is by equoring. 'tl7ie shaft i and by forming'the gersendjshaft of specialmetal. The vdiliicnlty isf aggrevatedgby :the limited space which the gea-'re 'must `oeelipyg- By foriningthe 'gears Aintegrati With the shaft, preferably by) c'a'sting'lnjthe form of. a lsteel casting and tlifen turning theShaft, nsing the gears for ycenteringthe operation. a construotion. is piovidefl'inl iifhiohftlle, geeI-Sfremainlp members; :rsbipper 'haft 'journeled'i'n seiglbearingsgeehipper pinion formedntegrally. 11 0 with the'lshaft and located between the bearings; afrack onthe clipper stick meshing l 'with the pinion; and e retaining member i 10 boom; a shipper sha .jonrnaled on the shaft between the bearings andharin a sliding engagement with the pper stiofIrLey 2. In a, power shovel, the combination of e boom; a dipper stick operating in relation' to said boom; e shipgoer shaft bearing on the n i t j ournaled in said bearing; two ship er shaft pinions formed integrally "with t e shaft; reeks on the dipper stick;` meshing said pinione; and e retaining member journaled on the shaft' and having a sliding. engagement with the stick.

3L In a power shovel, the combination of a boom formed with side members; e dil per .stick operating between the side mem ers 'of the boom andrformed of two members;

shipper shaft bearings on the side members of the boom; a, shipper sha-ft journaied in I said bearings; 'two shipper p inions formed 4 integrally with the shaft and located between the bearings; racks en the members of the dipper stick meshing with said pinions; .and e retaining member journaled on the shaft and having a sliding engagement with the dipper stick.

4:, In e'. power shovehthe combintion of e, boom formed with side members; a dipper stick operating between the side members of the boom and formed of two members; shipper shaft 'bearings onthe side members of the boom; :i shipper shaft journaled in said y bean-ings; two shipper pinions formed integraliy with the shaft and locntedbetween the bearings; racks on the members-of the clipper stick meshing with seid pinions; and a retaining member journaled on the shaft between the pinions and having a sliding engagement with the clipper stick.

In testimony whereof I have hereunto set my hand inthe presence of two subscribing witnesses.

` CLARENCE B. .WESTON` Witnesses B. M. HARTMAN, V. C. Hess.

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