US1590201A - Rotatable cutting tool - Google Patents

Description

June 29 1926.

J. J. MCGUCKIN ROTATABLE CUTTING" TooL Filed Dec.F 2. 1924 l l l A TTORNEY,

Patented June 29, 1926.

'lNlTEB STATES narrar orties.

JOHN J". MCGUGKIN, F BROOKLYN, NEV YORK, ASSG-NOR TO LOIS SCHWAB, OF NEW YORK, N. Y., DOING BUSINESS UNDER THE NAME OF STEVENS & COMPANY.

ROTATABLE CTTING TOOL.

Application led December 2, 1924. Serial No, 753,427.

My invention relates to rotatable cutting tools, and particularly to tools of a class which may be used for resurfacing, reaming and drilling, it being my object to produce such a tool which is both simple in construction, positive in application and efficient and durable in operation.

In the drawings, Fig. l is an elevation of my improved tool showing it applied to an axle fork; Fig. 2 is a view of the tool taken on the line 2-2 of Fig. 1; Fig. 3 is y.an end view of a cutting end of the tool; Figa 4 is an elevation of a modified formpof cutter sleeve; Fig. 5 is an end view of the same, looking down on Fig. 4; Fig. 6 is an end view of the upper member of the cutter sleeve shown in Fig. 4, looking up from the line 6 6; Figs. 7 and 8 are elevations of modifications; and Fig. 9 shows a modified form of spindle.

n all the Vfigures similar parts are designated by similar reference numerals.

The tool is assembled upon a bolt or spindle 1, adapted to pass through thestandard openings in an axlev fork. Upon this bolt are slid two sleeves 3, 4, provided upon their Outer ends with transverse cutting elements 5, 5, which are preferably formed of straight parallel ribs, of substantially equal pitch on each side, sothat they will' cut equally when rotated in either directionl` The inner ends of these sleeves 3, 4, are provided with projecting ianges as 5, 5, and 6, 6, respectively, which are adapted to be straddled by the forked end 7 of an operating handle 8, the parts being preferably so proportioned that when the fork 7 is slid between the sleeves 3 and 4 as shown in Fig. l, the cutting faces of the sleeves will normally lie approximately close to the inner faces of the fork. The jaws of the fork 7 bearing-against the shoulders of the sleeves 3, 4, are preferably elliptical, as indicated in the drawings, the4 pro-portions of the ellipses beingv determined by the amount of displacement desired for the sleeves 3 and 4.

In an aXle fork as shown in Fig l, the cutters may be turned to and fro by swinging the handle 8; while t'he cutters may be held to duty by pressing down or raising the handle 8 so as to cause the ellipticalv jaws to act as cams forcing the cutting sleeves 3 and 4 strongly to duty against the inner faces of the fork; and at the same time l the cutters can be vinstantly released by withdrawing the forli vor by swinging the handle 8 into 'horizontal position so as to release the cam action of the fork.

By giving the cutting ribs of the sleeves 3 and 4 equalptches in both directions, their cutting action against the fork surfaces lwill be equal in both directions of their rotation, under equal stresses on the operating handle. I

It frequently happens that the inner face of thewupper arm of the forlr requires much more work by a resurfacing tool than the face of the lower arm. of the forli, for the weight of the car is carried by the upper arm of the fork. If, therefore, it is desired not to cut away the face of the lower arm of they fork, a sleeve 4, having a plain surface, instead of the ribbed cutters 5, may

be substituted for the sleeve 4.` In that case the cutter 3 will resurface the .upper arm of the forl, while thelower arm will not be cut in the operation of the tool.

In Figs-v4, 5 and 6 I have shown a modified form of cutter sleeve `wherein it is formed in two sections, the` upper of which 9 isprovided withpitched cutting 4teeth 10,

10, adapted to cut in one direction, and thetwo sections are provided with` interineshing, radial teeth 11,11, of equal lateral pitch, so that, when thev` pressure of the lever 8 is released, the lower section 1Q may be turned back relative to the upper sec-` tion, but will gripv it, when pressure is applied, to drive it forward. lf this modllication is usedthe sleeve4 will be givena suitable length to compensate for any dif ference in the combined length of the upper sections 9, 12.

Fig. 7V shows another modification wherel in the uppercutter sleeve 18 and the lower terminal 14, are secured upon a spindle 15, the sleeve 13 being fixed, as by 'a cotter bolt 16, while the terminal 14 has a sliding connection with the spindle, which is per-- mitted by the recess 17 in the spindle re ceiving the end of a set screw 18.

The lower end of the terminal 14 is pref erably pointed to facilitate its gripping a plain surface if it is presented in the use of the tool. spindle and sleeves form a unitary1 assembly In this form of the tool the which is a convenient arrangement for a mechanic. V y Y Another modification is shown in Fig. 8, wherein the spindle is t'lie""'i"or ni of a drill l"l9,"o"ve1' Which a short'Cu'ttingsleeve 2() may be slid, if thel tool is to be used for lfS-Ulflllg, .hxilrllge .21, sleeveZQ, n.- ellofllg with. lewis 22; illY Sleeve v2.3 which is attached 'to the spindle drill by Cotter i' bolt 24. The saine movement 'of Athele'v'e'r 8 which will press thel surfacing sleep-*ete @rinvenuta efhielriehave einen* 'ieee be* Having thus described my invention, wh at I ela'r'n and'desire tfseeurefby Letters Patf ent'of-tlie'UnitedStatesisi-e '-1. rotatable eutting'toor the. @01am nation"vv ith` 'a Is pinlle of 'sepgr'able p ele :nts mounted 'threo`n",^`V and unitajlT 'Ineens Hro:I tatiiigsuhseparable elements andl fory p lodating relative diepiacemetf them axially on the"spindle v to force 'tlein to duty in posite directions.

v'2. Ina" rotatablecutting tool, thecornbination with a spindle of separable elements n'ioui'ited' thereon,A and unitary 'means/prio?.

vided *with ''g'ripping elements for rtatiig such:'separable'elernents'and vvithv` ele-f ments "-o'r' producing 'relative displacement of 'them a'Xia'llyon .tl-ie spindle-tio force thein to duty in`oppsite directions.

3.111 a rtatable'cuttingtool, the conibination with aspi'ndle' of'separableelernents mounted thereon," and unitary iineans con! sisting offa' 'forked lever insertedV between the separable elements for rotating them' and for producing relative displacement of them aXiallyon lthe spindletofforc'e ythe tool" to vcutting duty. 41H1 a rotatable cutting tool, the combination, with a guide' "spindle, of'u 'sleeve eleinents mounted thereon," one .thereofbefv ingfprovidedV ay serrated end to forni' a cutter' and unitary means for rotating 'the' cutter and for pressing it to duty by forcing it away from the other sleeve.

5.-.ln a rotatable cutting tool, the co1nbin'ation, with a guide spindle, of sleeve elen'ients mounted thereon, one thereof being provided With straight parallel serrations in `one end toV foi-1n a cutter and unitary means for rotating the `cutter and for press ing it to duty by forcing the sleeves in opp'ositer directions.

6. In a rotatable cutting tool, the coinbini-tin,K `with Ya: guide spindle, of opposed sleeve elenientsniounted thereon,ea ch there olfk being', ded With af serrated 'Cutter 'and unitary niea'nsfforrotating the cuttersl and fell" ijleslfe them, ,tio duty i'n' OPPQSt@ lidi.- mtpsvv A. y 1

7; Ina rotatable cutting tool, the combina edm-with* anregende', of Sieve elements mounted tliereonfone thereof being provided with ""'afid "end-1:0. fim"`."011tter and with eingaeeabe mensa! irs 6p' @sie 11d anduiiita yi means'adapted to' eno "saiden',D

mame-ans', 'te 'fo'.tf" iufter; and to bear "against'tlie opposed ends of" the sleevesjto'pressthe cutter to' duty.

Sjln arotatabl'e cutting tool, the vcombination, 'with a guidespindle", of sleeve elements inounted thereoiuone thereif being provided With a serratedendl tofforin` a cutter and ivitli engageableineans at its opposed end and' unitary" means adapted i to 'engage with' said @seeing means. to` rotate .the better, 'and' being provided with earn 'elements 'to bear against 'theioppo'sefdf ends fof the "sleeves to press thecutter to A f" 9'.' In a rotatable cutting tool, the combinatiOn, aguide spindle of sleeveelenients mounted thereon, yonev thereof beingprovided v vith'cutting elements yori its outer-end' and with aliand-leffork engaging element, a handie, prvideagwiul *a ferie adapted to., 'be' insert/edf b etfveen said sleeves to strad'clle 'the spindleandfto'engagetvith the cutter to ro tate "the saine, said: fork ybeing provided with, ajcaiii ele'inent for forcing-,the sleevesapart bysvvingn'g the hand-le in the plane of the spindle. f

"`10. In al rotatable cutting-tool, the combination, With a'guide: spiiidle, `of sleeve eleniente'1inountedfthereon,v oney thereof being provided" Y'vitlra` terminal cutter and with' able'rneaiisat its` opposite' end, and n'ieans 'ad-apted'to engage with said `i i1gfrnea`ns',fto rotate: the cutter and to to' Ypress thecutt'eii to

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