US1747898A - Tool for milling eye sockets in doll heads and similar hollow structures - Google Patents

Description

Feb. 18, 1930. GRUBMAN 1,747,898

TOOL FOR MIL e EYE SOCKETS IN DOLL HEADS AND s LAR' HOLLOW RUCTURES Filed March 1, 2'7 2 Sheets-Sheet l INVENTOR.

M ATTOR Y Feb. 18, 1930. A U 1,747,898

TOOL FOR MILLING EYE SOCKETS IN DOLL HEADS AND SIMILAR HOLLOW STRUCTURES Filed March 1, 1927 2 Sheets-Sheet 2 INVENTORA Zeal drabman M ATTORNEY Patented Feb. 18, 1930 PATENT OFFICE UNITED STATES LEO J. GRUBMAN, E BELLE HAREoR, NEW YORK moon EoR MILLING EYE SOCKETS IN noLL HEADS AND SIMILAR HOLLOW STRUCTURES Application filed March 1, 1927. Serial a... 71,770-

This invention relates to tools for millingeye sockets in dollheads and similar hollow structures, and has for its primary, object to. provide a simple and novel means carried by I the milling'cutter for accurately sighting the eye opening through the head wall and positioning the edges thereof with respect to the center of rotation of the cutter.

I More particularly, in one embodiment of my invention, I" provide a'rotating cutter head which is of substantially spherical form, the spherical surface of said cutter head having a sighting means thereon with respect to which one edge of the eye opening in the head wall is adapted to be positioned. Preferably,

this sighting means is in the form of a number of spaced parallel circumferentlally eX- tending ribs any one of which may be selected in accordance with the angle'at which the head is positioned and the head then manipulated or adjusted until one edge of the eye opening is positioned in proper relation I to said rib whereby the operator will be apprised of the fact that the axis of rotation of {the cutting headis in accurate registration with the minorvertical axisof the eye opening to thereby obtain an equal cutting action on the inner side of the head wall at the upper and lower edges ofthe eye opening and a symmetrical curvature of the concave wall of the socket. Thus, when an oscillating eye member is'subsequently mounted and ar-.

ranged in the socket, the center of the pupil V thereon-will accurately coincide with a vertical plane coincident with the minor axis of the eye opening. x f r It is a furthergeneral object'of the inven ,tionto provide an improved sighting means simple in its. construction, efficient and reliable in practical' use, and'which makes it possible for the workman to very quickly ob- ;tain the necessary accuracy. in the relation-'1 ship of the cutter'with respect to the opening i "ment of its several parts as will be hereinafter fo'r' such milling toolswhi ch is exceedingly,

more fully described, illustrated in the accompanying drawings, and subsequently incorporated in the subjoined claims.

In the drawings, wherein I have shown one simple and practical embodiment of the invention, and in which similar reference characters designate corresponding parts throughout the several views,-

Figure l is a side elevation showing one of the milling cutters and its operating spindle operatively positioned within a doll head, the latter being illustrated in section;

Fig. 2 is a fragmentary front elevation showing the sighting means on the cutters as (Jo-related with the lower edges of the spaced Eye openings in the front wall of the doll cad;

Fig. 3 is a front elevation of the tool, the doll head beingomitted;

Fig. 4 is a detail perspective view of the cutting blade, and

Fig. 5 is a similar view of the cutter head provided with my improved sighting means, with which the blade shown in Fig. 4: is adapted to be detachably assembled.

Referring in detail to the drawings, wherein I 'havepartially illustrated a milling machine or tool of the type shown in my copending application Serial No. 32,301, filed ing 6 fixed on the upper end of a standard 7,

and 8 designates the adjustable spindle rotat ablymounted in the adjustable bearing 9 supported on p the 7 standard 7 whereby said spindles 5and 8 may be spaced apart to various distances in accordance with the predetermined spaced relati-on between the eye openings in doll heads of different sizes. The adj usting means for the spindle 8 and its bearing 9 includes the manually adjustable screw 10 suitably mounted in the upper end of the standard 7. The several parts as just described are all substantially identical with the disclosure contained in my co-pending application, and in so far as the subject matter of this application is concerned, further detail description of the mounting and adjusting means for the tool spindles 5 and 8 is unnecessary to a clear understanding thereof.

It will however, become apparent as this description proceeds that the novel features of my present invention are not necessarily restricted to use in a tool of the multi-spindle type, but might also be utilized in connection with a single operating spindle and milling cutter. As shown, with the upper end of each of the spindles 5 and 8 a cutter head 11 is detachably connected in any suitable manner. This cutter head as shown inFig. 5 of the drawings in preferably provided with a cy'-' lindrical body portion terminating atone of its ends in a semi-spherical part generally indicated at 12. The cutter head is provided with a longitudinally extending groove or slot 13 therein opening through the part 12 Whichis adapted to receive the cutter blade 14' shown indetail in Fig.4. This blade is detachably fixed in the head 11 by means of the screw shown at 15 and one end thereof is rounded and provided with arcuate cutting edges 16. The outer surface of thepart 12 of the cutter head is provided with a series of spaced parallel ribs 17 thereon substan- 5 tially concentric with the axis of said cutter head. As will be noted from reference to Fig. 1 of the drawings, the cutting edges 16 of the blade 14 project outwardly beyond the edges of the ribs 17 so that said ribs do not contact with the part operated upon by the cutter blade. r v

In the use of the tool as above described,

the doll head shown at D is inserted over the twospindles 5 and 8, it being understood of course, that the spindle 8 with its cutter head selected sighting rib 17 will approach the 11 has first been properly adjusted relative to the other spindle and cutter so as to space the centers of the semi-spherical end portions 12 of the two cutter heads in accordance with the knowndistance between the centers of the spaced eye openings in the front wall of the doll head. Thedoll head is then adjusted or manipulated until one ofthe ribs 17 on the part 12 of each cutter head bears substan tially the same relation to the lower edge of one of the eye openings cl in the wall of the dollhe'ad'as indicated in Fig. 2 of the drawings. .The particular rib17 which may be selected for the purpose of thus sighting the milling cutters with relation to the edges of the eye openings determines the obliquely inclined position in which thelheadmust be supported and held during the cutting opera- *tion. By the provision of these sighting ribs on the .cutterheads, it is apparent'that in the rotation of the two milling cutters, the same amount of material will becut from the inner side of the head wall at the upper and lower edges of each of the eye openings and the con'caves'urf'aces of the two'sockets thus formed will bear the same symmetricalrelation with said edges of the eye openings. Of course, as the cutting action progresses, the

outer surface of the doll head wall area lower edge of the eye openings, and in this way the operator can determine when the sockets have been cut or milled out to the desired depth. Therefore, in all doll heads of the same size, the walls of the eye sockets will bear substantially identically the same relation to the edges of the eye openings so that eye settings to be mountedin the doll heads will be freely interchangeable. When only a single spindle and millingcutter is used, the'operato'r merely shifts the head so as to position the cutterfirst at the rear side of one eye opening and then at the rear side of the other eye opening, properly sighting the cutter with relationto the edges of the'openings in each'instance as above described. It

will be appreciated, however, that in either case, the milling operation may be very expeditiously and accurately performed and 7 that the proper use of my new sighting means for the milling cutters requires no high de-V might also be incorporated in various other alternative structures, and I accordingly reserve the privilege of resorting to all such legitimate mechanical changes therein as may be fairly incorporated within the spirit and scope of. theinvention as claimed. a

j I claim-z 1. A milling tool ofthe character described including mtatable Spindle? semi-spheri cal cutter head on one end; of said spindle,'a blade hired in the cutter head in line with the spindle axis and having a cutting edge spaced from the periphery for said semisphericalf head, and said head having circumferentially'extending sighting means on its periphery disposed at right angles-to the axis of rotation of the spindle.

2. A milling tool of the characterdescribed if incl'udinga rotatable spindle, a semi-spheri-Q cal cutter head on oneend of said spindle,a

blade fixed in the cutter head in line with thespindle axis and having a cutting edge spaced I from the-periphery of said semi spherical head, and a sighting ribprojecting from the surface of said semi-spherical cutter head and extending circumferentially thereof at right angles to the axis of rotation of the spindle.

In a tool formilling eyereeeiving-sock ets in doll heads, a rotary spindle adapted to be positioned within a doll headthrough the neck opening thereof and having a: semi:

spherical cutter head at one of its ends, a blade fixed in said cutter head in line with the axis Q 7 of the spindle and having its cuttingedgepositioned beyond the periphery of s'aidcutter head for engagement with the. doll headwalll rot at the inner side of one of the eye openings positioned relative to said rib therein, and said head being provided with a sightingrib on its periphery extending circumferentially thereof at right angles to the axis of rotation of the spindle, one edge of the eye opening in the head wall adapted to be to thereby dispose the major axis of the eye opening in definite relation tothe axis of rotation of the cutter spindle.

4. In a tool for milling eye receiving sockets in doll heads, a rotary spindle adapted to 1 be inserted within the doll head through the neck opening thereof, a semi-spherical cutter head fixed to one end of said spindle and provided with a plurality of spaced circumferentially extending sighting ribs on its periph ery disposed at right angles to the axis of rotation of the splndle and with respect to which the edges of the eye opening in the doll head wall are adapted to be positioned to dispose the major axis of said eye opening in definite relation to the axis of rotation of the spindle, and a blade fixed'in said cutter head positioned in a plane coincident with the spindle axis and having its cutting edge disposed beyond said sighting ribs;

In testimony that I claim the foregoing as my invention, I have signed my name hereto.

LEO J. GRUBMAN.

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