US892115A - Convertible drill mechanism. - Google Patents

Description

' PATENTED JUNE 80, 1908 O. ARNOLD.

CONVERTBLE DRILL MEHANISM.

APPLICATION FILED AUGJ?, 1907.

0fl the feed-shaft.

5 'Unrrnn OLIVER ARNOLD, Ol." WORCESTER, MASSACiiliSlTiTS.

CN`V'ERTIBLE @BILL MECHANISJ No. 892,1 i5.

Spesicnton o1" ,Lett ere Potent.

Patented June 30, 1908.

lib all wibo-m it muy concern.'

.llc it known that i, Utivnn frenonn, n. ril i- Zen of the United Steins, residing al. Worrcster, in the county ot Worcester :ind Stato oi ira-Ssachnsetts, have .invented n new und 'useful Convertible'iriil Mechanism, oi wliirli tire following is n specification, reference bcing made therein to the neeonipnnying drewrigs.

provide e practise-l, convenient and eli'icient meei'ienisin whereby o simple breast or bund drill may be convertibly employed as :in nprigiit standing drill with automatic leed; thereby adapting tile mechanism for manyr @losses of work whore n LQmnll drilling merli-- :miem is req nired.

Another object is to provide e convenient stand end ieedoneeininism with which :in ordinary iortofblo drill een be detnclinbly oombined for temporary use es en upright and trible drill-press.

Another obj eet is to provide Ineznislfor tbe stationary support of it lmnd-driil brore end drill mehanisin, n movable work-sn@porting table Orbed therefor, sind adjustable Ineens for automatically feeding sind table or bed toward the drill in conjunction with the operation' of the di'ill--spindle Another obi'ect is to provide n drilling ma.- ehine or app ionee .,'ornnrising o piller, or standing freine, n drill-spindle supported lparallel therewith, n. movable lWork trible, :1.

serew-threeded shaft loeitted between die piller end driifspindle, for feeding the trible towards 0r from tbe drill. tool, und ineens for o erating said slifdt, es 'more fully hereina. ter explained.. y

' These objects i attain by the mechanism ilinstrnted in tbe accompanying drawings, wherein Figure 1 represents o Side elevation of a. mechanism embodying in v invention. Fig. 2 is e, plan view Sl'n'nvi'rg tile feed. operating devices; the inoingcefr being in Section, ond the brace-freine ont ori et line. "di on i. Fig. 3 is e. pli i. view oi the Worf. importing tabie wit-ii the post or upright nilio t' sind feed'- sliet shown in section et lino X K on Fig. 1. Fig. 4 is e. horizontal section et line Y' Y on Fig. li Fig. y5 is a. diagram view showing the feed-operating eem sind rocker-erm :remitted thereby; and Fig. 6 is a side rview diagram `illustrating the manner of disengaging the feed pewl for permitting reverse movement The objeet of my present invention is to A represente f portnble bruid-drill or breastdrill inerfini stock, or l'rnnio fil, with its broom-'pod IIL; the drill-spindle rote table in suitable benringbin seid liinme g ib Spindie-driving geur` (1,41; and tbe main op( "ng geni' Ji, tbe lnttcrbeing disposed with its axis perpendicular' to the spindie exis, and lievi g :in operating ineens or lmnd-'errnxk i combined. therewith. Seid moin ge;\.r provided with beveled gennteeth tlnit mesli with tbe spinrlle-rl1'ivir1g genre so tlmt rotation ol'l the drill-spindle is effected by ytru'ning tbe crank ond Innin geur, in Well known nntnner. -ln tbe present illustration tbc marin geur is shown. with two serien of gen1' teeth, aej'nnd s, sind tivo driving genre d and r'l nre :wronged on the drill-spindle 4for iinlinrling tlirreto diiierent speeds, suitable clntcl. devices being provided, nt 5, for non nerting eitlirr one oi' Said (Z or (Z1 to drive tbe drill-spindle- This dual form of gei'n'ing, however, in not n lieetnro of iny presenr. invenlion; rind any other snitirble style ol breast-drill, or gearing, een be employed :1s on equivalent element in my claimed coinbinntions, if preferred. f

C indicates the drilLholding chuck, and 6 the drilling tool bold therein.

The port marked B represents the Stond or supporting opplifinre comprising an upright post, piller or eolnmn l0, and o lieed-frnme lmving an 'upper forwardly projecting arm or member 7, :l1-nd n lower projecting erm or member H; sind arms nrolerebly united by on integrally formed bar, or bers, es indicated :rt l. ,tecbod ,to ille upright post, piller or column i0; which loller is preferably .mudo oll :L eylindricnl rod, either solid or tubulin', and is provided with n snitoblo foot or bose niember 32 iixed thereon, :nid provided with screw-bolos or foeilitiee for its :ittnelnnent to e. bench or platform.

'libe upper member 7 i'iLted, :it or near ont end, with a. sent 1 3 for receiving the iin drill-brnoe 'lrxnno A1; ond :i bolt 1,4, or other suitable fastening device is provided for detoclinblv but firmly ysecnrnlg the drill-brace lower member H is nlsoitted with L sont 15 Seid bond-ironie is rigidly et-.

ronrnrifiing lie brace, drilly ffl) ie p i st l() sind mounted te tur i bearings 'formed in or upon the lieedeireme arms '7 and -c i2; seid sim'ft being screwtlireileil along ts lower portion which en- 'itli e. counter-i, tliresd formed iii tile iiul) oi the teble. Bv rotetien ei the screw-shaft the table is moved up oi' flown accordingly the sliefft is turned. This Yifeed-screw slm best liet-Ween tee post mend drill spindle 2, so that the l^ .ers e ol the perte under tlie force exerted 'ii "eositieii tcitlie i et Werk. Vixfl on tlie top end `f-.itli suitellile il@ LC* mili-pin lispleccmeiiq und "lig tlie iced devices e cam 3l) is the nie-in gear 3, e rocker Slis "f bearings upm; the lice-d frame ving one end en erin or foil 33 that id mi erm pivo e L d to engage A spring .29 previded 'for pressi; i eci: the iecler or ik; im, to keep the roll normellj,vv egeiiist the lli-ee tile cam. The end of the pevvl tliet eng ,Y s the retcliet is formed with suitelilc projections or means that keep it norllv ie Alement with tlie per"plieryv of the mit permit of its reic-ies so'tliet it f, shown iii to be given lie creci; 26p A ewl against f' metio-li 2H l, incluis of t piovided -Wlicel; si ,g is arranged to ed down v tli tee pewl, and to relative tliLreto when tlie letter i to and out ci i' Fing position.

'The eem SO, shown, isi -rmed es en elio- 'eei enrichis, and etteelied to tlie iiiiiei si( e el the umili gear 3. iifl cem may be mede ivitii t '.i iiiore projections or eliiieli-v impulses to escli revolution lie iced. more oi' 'firm LieiL 'tli opecetion, 'the 'tafels 20 is edjiisted siied ievci by turning the ieedelieit d s the henri-creek 26. lie j is placed unes beneath tl'ie diil 6. "mi oeeietoi tlieii, by ineens oi the limiti creek rotetes the gear 3 Whicli operates mechanism; the drill being rotated-by either of tile sets oi: gem-sf, or s, 1. llie cem 3@ actu-etes the rocker pliwl causing en intermittent rotative movement oi the ieed-screwslisit 23, which slowly elcvetes the table 2U, thereby' Afeel'ling the Worli onto the drilling' tool. sstlie drilling progresses. When the hole is completed the pswl 35 is thrown off (as in Fig. 6) and/e reverse movement is given to the screwsliait, by tlieAcisiil; 25, Jor depressi-iig the trible and releasing tlie drill.

B v releasing' the fastening devices, et and i6, the, drill-ler ee clin lie readily dctzielied freni the ste-iid supporting appliance, so lis to ,be employed upon anyv-.fork es e bicestedrill when: desired. @r again, it may be secured to the stand or supporting appliance and there employed es su aiutoiiieticellj; ieediug upright drilling meclieii ism.

B this invention l Drevidc e verT serl 1 viceeble, convenient end eiiicieiit drill-press 'or appliance 'that Well adapted to go in e trevcling lait, er in mitoiiiobiles; well is 'for use iii msiv other situations and in various lsreiiclies of tiie mechanic tredes, for (loing moderately smell drilling` work. it drills fest, mid it drills straight; and is readily convertible ior :i variety of uses, es above described.

i claim* i. ji drill-supporting stand comprising an upright member having' e projecting heed portion and e suitable standing foot, :md provided. 'with a, work-supporting device that is movable up end down between the feet end heed ci the stand, en' automatic feedmeclieiiism for moving seid Work-supporting device to 'feed the Work to the drill, Mid dem vices ici' tlie detachable ,connection oic e portable drill-brace rigidly to seid stand iii combination with e portebledrill .mechanism coliiprisiiig the drill-brace, drill-spindie, drill- ;holdiig chuck, and gearing for opei'etiiig 'the .Y drill-spindle, and ineens carried by seid geering for meting the automatic feed-mech einem.t v

2. in. mechanism of the class eesciilvegi, l

including' s portable cirlbbrece provided with diill-opeietiiig devises, s stand therefor,

provided with e Worx-supporting eidvi'eed ing mechanism mou' 'ted on seid stand, and means for detachee-bly securing said drilloreee to seid steed; tilev combinaties of e ieedeetuetieg merel-oei? ceiried en stand,

and'

drill-brace, said member being respectively positioned for unattached coacting engagement Witheach other when the drill-brace and stand are united and readily separable by removal of said drill-brace from the stand.

3. A drill-supporting attachment comprising an upright post having .a base or foot member, ak work-sup orting table slidable upon said post, a hear -frarne 'fixed upon said post 'and provided with upper and` lower earing seats for the support of a drill-brace with its drill-operating mechanism, means for detachably'securing said drill-brace to said head-frame, a feed-shaft mounted in bearings on said foot and head-frame, and threaded into the table-supporting arm, a ratchet-wheelV ixed on said feed-shaft, a drill-operating gear having a cam thereon, a feed-pawl engaging said ratchet wheel, and means for actuating said pawl from the cam on the`drill-o eratinggear.

4. In mec ianism of the character described, the combination with the upright post, lthe drill-carrying frame, the drillspindle, drill-operating gearing, and a work table mounted to slide on said ost and projecting .beneath the drill-spind e of a feedshalt disposed approximately in the same plane wit 1 and positioned between said post and the drill-spindle, said feed-shaft -being threaded .for moving said table to feed the work to the drilling tool, and means for rotatively actuating said feed-shalt automatically by the same primal operating means and in conjunction with the operation of the drill-s indle.

5. n a mechanism of the character speciiled, the combination, with a supporting stand having upper and lower arms vitted with seals `l'or sustaining a breast or hand drill-mcelranism, and means for detachably securing thc same to said seats, a work-feeding table having a bearing-hub inovably supported on the stand beneath said arms;

of a threaded.` feed-shaft mounted in said stand and connected for moving said table, a ratchet wheel on the feed-shaft, a pawldevice for Inoving said ratchel.-\vheel, a 4rocker comprising a pawl-oarrying arm to which the pawl is ivoted, and an actuatingarm rovided wit 1 aloam-engaging roll or mem ier, the drill-1ncchanism, its operating gearing, and a cam vlixcd to thc primary drill-operating gear and engagcable with said actuating-arm i'or oscillating the rocker.

6. In a drilling mechanism, the combination of the upright standard having a standing foot and forwardly n'ojccting headframe, a drill-spindle, drill-holding chuck, and spindle-actuating gearing rotativcly supported in connection with said head-frame, axially parallel with said standard, a drilloperating gear provided with a cam Alixcd thereon, said cam having a plurality o'lprotuberances, a work-supporting table slidably mounted to move up and down said standard, an upright feed-shalt threaded l'or moving said table, and means actuated b v said cam 'for imparting rotative movement toV said l"eed-sl1a.t, in conjunction with the operation of the drill-spindle.

7. ln a mechanism of the character dcscribed, in combination with the l'ced ratchetwheel, and the vibrating pawl-carrying arm; ol' a pawl pivotally attached to said arm for sidewise disengagement, and havingl means `f or its normal retention in alinement with the ratchet-wheel face, and a pawl rossing spring arranged to swing with said -pawl whilemaintaining its normal position in relation to the pawl member.

W'itness my hand this 12th day ol August, 1907.

omvnn Annone.

Witnesses:

(Inns. ll. Bunmncn, A. G. Davis.

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