US1253511A - Coal-drill-socket-retaining apparatus. - Google Patents

Description

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EL ...n.x. Lemie.;

Application lerl Becem'ber 'L le.

To all "whom t may convene;

lle it known tlmt l, JACOB il. Menena o,

citizen of the United Eitetes, residing et Mul" bei-ry, in the county of Ciowtoid sind State of lnnens7 have invented eei'tnin new .and useflnl linpioveinents in Coel--lilrill-tioeltet Retaining n jopaietns, of ivliioli i following is o. lull9 eleoi,l and emot description, suoli es will enable otneis skilled in tlie znft to which it eppeitains to molte and use the seme.

The invention relates; to feminin?" device foiloeling the drill socket ot eea-l diills to the three-d loer of the diilling, machine so that the socket is securely held in operative position on the thread bei when in operation and een be easily end quiolily feino-ved when desired.

The drill socket is irequently iemoved :ioin tlie tlueed bnr and replaced tlieieon oi the pnpose of changing dille, grind ing tlie diille and other reasons end is essentie on easily and quickly ette-o able and detachable ineens be pirovided so that no time Will be lost in changing the drills, it being of ,still uitlief: advantage to be able to attach oi" detach, the With,- out tlie oid of otliei tools, enen ee punches, Wren-elles and the like it is not eonveni ient of expeditious foi' the Workmen to 'al ways iave suoli tools piesent when the diill is to be changed,

Tliefpfesent invention seelis to povide en improved etninei foi' detuehzilily etto-,oliine' diill soclzete` to the thread bei" eool drillingv niecliinee so tlnii; eooliet een lie instantly attached to on detached fiom the tht-end bei without die uid of other;Y tools,

Vlitli these and other objects infvievv the invention consists in tlie feotuiee 0f Con.- etueton, combinations and :infong'etnents oi ports lieeinatter set ortli and nioie fully pointed out in the appended elnirfn, the no eompenying drmvings illustrating en epplicetion of the invention to the drill socket and thread loniof n, cool drilling machine.

ln the dmvvingmm Figure l is a View in elevation of e Coal drill socket with the' improved retainer shown in dotted lines :ind fizignientni'y views of the thread bei and n. Coal drill. 4

llig: 2 is n View in elevation of the socket und fiegmentaiy-views of the coal drill and thread bar.

Specification of Letters Patent,

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Fig. eeetionol view tellen on line QJ o Fig. "Jieiitey View in elevation of the rlhe tl* eed 5 is of eoinmonnnd Well known consti-ue on in the nrt pertaining' to Coal drilling les, excepting the slot 6 in which the nel* 'Y is mounted on the pin 8.

The coul drill 9 and the soelet l@ me olf common :ind well known construction, en` eepting that th reetnngnloi liole ll is su positioned and wronged as 'to oopei'otw with the 7 in retaining the soelet l0 on tlie tliic'end bei' 5. v

'lhe slot li 'e provided in tile tlifend lon?? 5, 1n which pivoted on the pin 8 tlie ieteinei tle i, f being provided with lug *il l2 to engege we eno oi the liole ll. While the end liezwiei tlinn p e end theieo from which the lugq lil pi r 9 the 'nulli and weight oi the end ositioned on tlie opposite side of the the lug l2.

The tioned in the end il thence end and in 3 right po Weight of noe noted une;

ove? bale-nce the opposite in the position sliovvo ne tlneodbei is in nig@ it usually is, and tine of the retainer oleo ie itii'ugnl fonce when y fel" ing, es it olwojye is ivi i `eentiitiignl- Jnoie@ netin tine reenlt when' the tliien being undeie emted in lioifint positionn From tile i liet the thread lizn ie op i-nl ne Well as in veitienl ning it will be understood that the it will always seoui'ely ifetein the eo l0 on the thread vvliethei1 the letter be in vertical or llor zontal'posit." i sind that the revolving of the thread los due to the operation thereof Will produc/e eentii'fugal foice in tlie 'end ld e i'eteiner is longer end' nl poeition as eliown it* l :i

constructed poe-i-` "egoing manner causes the 'a lill@ of the ietofiiiiei end aid 1n retaining tli:

socket on the een t The socket l@ ie not usually o tigglit lit on the thief l l* i when the Wall l5 oi2 the socket benin uw bar, thus allowing suilic-ient movement of the socket in the dleetion of the thneed bei to Witlidi'niv tlie lip l? of the lug l2` from inet the end 16 of the tlneed and the hele 11 so that thesoeket is easily and instantly removed freni the thread bar when it is desired te remove it.

The socket retainer is of particular advantage for the retaining of drill sockets on the thread bar of coal drills and will save considerable time in the changing ot' drills, the retainer being instantly operable and always dependable both in attaching and detaehin the socket to the thread bar.

What I elaini as new, and desire to secure by Letters Patent, is

l. In drill socket retaining apparatus for coal drills, a thread bar, a retainer pivoted Within said thread bar, a retaining lug (in said retainer and projecting from said thread bar, and a lip on 'said lug to leek a drill socket on said threadbar.

L); In drill socket retaining apparatus for coal vdrills', a thread bar, a retainer'extending longitudinally 0iE Said' thread bar and pivoted therein, a retaining lug on 'one end et' said retainer and projecting frem Said thread bar, the opposite end of' said retainer being heavier than the end provided with said lug, and said heavier end of vsaid retainer inelining to the side of said thread bar opposite said retaining lug.

JACOB C. MQLER.

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