US1205969A - Dipper-tooth. - Google Patents

Description

40 View in side elevation thereof.

'WALTER BRINTON, 0F WILMINGTON, Il."

ELAUVARE, ASSEGNGP. T AMEftICi-l MRZ GNESE STEEL COMYANY, OF AUGUSTA, MAINE, A CQEPRTLON 0l? MNE.

DIPPEVTQOTH.

,arianne To ZZ 'whom 'it may concern.'

Be it known that l. 'Winrnn Bniiv'rox. a citizen o'f the United Statesj and a resident ot 1h02 Vilashington street. Wilmington, in

5 Jthe county of New Castle and State ot llelaware` have made and invented certain new and useful linproveinents in Dipperleeth, of which thevillollowing is a specification.

lilly invention relates to an iinln'ovenient lo in dipper teeth for use in connection with steam shovels and the like, the object being,V

to produce a tooth having an interchange.- able and reversible. type ot point so constructed and assembled with the body or l5 shank as to prevent any possible wear oecui-ringl at those places where the two parts' of the tooth are fitted together. l

A further object ot' the invention is to provide a tooth wherein the removable point shall beprorided with smooth andunbrolten wearing' surfaces7 in order toA reduce the 'trirtional resistance, offered by such while in servire, to a niininiuin.A the point, and the nose of the. shank to which the point is 2.5 fitted, being possessed ot the necessary strength to withstand the enormous strains iniposed thereon. l

[it further object ol the, invention is to construct the tooth so that the provision of a slot in the nose ot' the .shank tor the reception oi the dotacliable point is obviated. and with these and other ends in view consists in certain novel .features ot' construction and conibixultions oi parts as will be hereinafter Afully described and pointed out in the claims..

In the accompanying; drawings. Figure 'l is a vplan view of a tooth constructed in accordance with niy invention. Fig. 2 is a Fig. 3 is a horizontal sectional view taken on 'the line -l-i of Fig. i). lookingl in the direction as indicated by the arrow. hier. l is a vertical sectional View taken on the line Jf-Jc ot Fig. L looking" in the direction as indicated by 'the arrow. Fig. 5 is a sectional view taken Y'on the line 5-5 of Fig, 3. Fig. (3 is a view in perspective showing` the formation of the nose or forward end ol" the. body or shank of the. tooth. Fig. 7 is a detached View in perspective olf onel oi the lreys lor securing the point to the body of the tooth.

ly reference to the d 'awings, it will be seen that the tooth, as usual, comprises two parts, a hotly or shank l()v and a detachable Specification of Letters Patent.

Patented Nor. 22%,

point ll, the former being bifurcated 'to forni the two jaws l2, i3, between which tits the edge ol' the bucket or shovel (not shown).

is clem-l51 shown in Fig. (i, the 'forward end of the shank is formed with a. nose lll, the tour sides of which slightly converge toward the extreme forward end. giving to the nose the shape or torni of a truncated pyramid.. the base thereo' being' somewhat smaller in diameter than thelorwarld end o' the shank. thereby in'oviding` a shoidder or wall l5 around the 'four sides of the nose, against which vabuts vthe extreme rear end of the. reversible point as hereinafter described. Across the smaller or forward end ofthe nose ll extends the rib or projection lo adapted to lit into a recess o'll correspondn inf.; size formed in the detachable point ll., for the purpose ol assisting,` in holding the parts in their proper relative positions and avoidingr any vertical play or movement ot' the point upon the shank when the tooth is in service.

The detachable point l1. is constructed with a fmwv'ard or solid wearing portion. the rear portion being hollowed out to torni a shroud or housing' l? for the nose 14:, the sides 1S of the point being parallel, while the upper and lower sides 19 il() converge toward the extren'ie sharpened or difging t, edge 2l thereof.y said point beingl symmetrical about its longitudinal axis in order to render the saine reversible on the shank. the inner surfaces of the walls ot' the htmsing l? liniinishingr in'thickness toward the rear edge. to contorni to the shape of' the noso ll,

saidv rear edge 22 or' the housingalnitting or inniinging against the wall or shoulder l5 as clearly illustrated in 25 and il oit the drawing. By thus tightly iittingg'the solidly 'formed nose il in the housing l?, and causing the forward end of the nose and rih 1G 'toi-ined integrally thereon to snugly lift a gainst the solid forward portion of the point` and by ca using` the rear end o'thepoint to abut or impinge against thc wall or shoulder 15, any strain imposed upon the point where the tooth is in service. will he imparted directly to the shank l0, the saine result being 0htained as though the two parts were made integral, and avoiding the objections her tofore raised against the ordinary forni of tooth wherein much of the strainfwas iniparted to the bolts or other fastening means s

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