US 1709591 A
Description (OCR text may contain errors)
April 16,1929. P, s, NEWBO ND 1,709,591
MANICURING APPLIANCE Filed Aug. 28, 19 28 2 Sheets-Sheet 1 r j Z 17 F 2*20 L91" 1 25' If :1 5
1'7 2 i I g? i April 1 1929- P. s. NEWBOUND MANICURING APPLIANCE Filed Aug. 28, 1928 2 Sheets-Sheet 2 Patented Apr. 16, 1929.
UNITED STATES PATENT "OFFICE.
PERCY SELWYN NEWBOUND, OF LONDON, ENGLAND.
Application file d August as, 1928, Serial No. 302,452; 'and'm Great imam September 29, 1927.
This invention relates to manicure appliances, and has for its object to rovide a mechanical device for polishing t e fingernails by friction.
9 The appliance of the present invention comprises a rotary buffing member of circular form lined with an elastic pad faced with suitable polishing fabricvor material, suclras' chamoisleatherfor example, and 10 provided with an electric motor whereby it. may be caused to revolve about itsaxis' at an appropriate speed.
The rotary bufling member is preferably cup-shaped, the elastic pad extending around member is detachably secured so as to facilitate renewal of the polishing pad. The support may be furnished with handle which may also carry a switch for controlling the current to the electric motor; or the support may, if desired, be provided with means for enabling it to be clampedto a table or the like when required. v
In the accompanying drawings, which illustrate one form of the invention, Figures 1 and 2 are general views of the appliance; Figure 1 being a side elevation partly in section, and Figure 2 a front elevation of the same, also partly in section' Figures 3 t 8 show individual elements of the appliance in detail; Figures 3 aud t being re spectively an axial section and a front elevation of the metal frame of the rotary buffing member; whilst Figures 5 and 6 are corresponding views of the intermediate driving member; and'Figures 7 and 8 are, again, corresponding views of one of the friction rollers of the epicyclic friction gearing.
In the example illustrated, the rotary bufling member A (seeFigures 3 and 4) comsheet metal so as to present at its outer or front end a cup-shaped portion 11 having.
an externally retroverted marginal. flange 12,- andtowa-rds its inner or rear end a cylindrie cal neck portion 13 closed at the rear, except around the centre, by a flat disc portion lec which is stiffened 1 by the central portion being forwardly returned to constitute a substantially cylindrical tube v15, whilst between the cup 11 and neck 12 is formed a circumferential corrugation 16 which is inwardly concave.
In the flat disc portion 14 are .provlded three equidistant doubleended arcuate'bayonet slots 17-for a purpose hereinafter explained.
The intermediate driving member H (see Figures 5 and 6) comprises aframe' of cire cular form, spun orpressed to shape from a single blank of thin sheet metal so as to present at the rear a disc portion 18 whereof the margin is forwardly returned at 19 and contracted at 20 to constitute a cylindrical socket adapted to receive, and to fit frictiontight about, the cylindrical neck portion 13 of the-rotary buffing member. In the rear of the cylindrical socket 20 the driving member presents a circumferentially enlarged and peripherally milled annulus 21 whereby it maybe grasped for insertionin or removal from operative position in the external casing when required. The disc portion 18 is centrally apertured to carry a metal. bearing block 22 for a journal 28 onthe outer or'front end of the armature spindle of the electric motor (Figurel) this hearing block, which is riveted in position, being provided with a bush 24 of oiled felt held in position by an annular plug 25 of indiarubber. Rivetcd to the disc portion18 so as to project rearwardly therefrom are three equidistant studs 26 whereof the forwardly projecting heads 27 are adapted to pass through the, en-' larged central openings of the respective bayonet-slots 17 in the buffing member A, and thereafter to hold the latter securely locked to the intermediate member 13 in whichever directirmit e latter may rotated by the 05 electric motor. I The rear portion 19 0f the member B enters. and virtually closes, a circular aperture at the front of the relatively stationary casing C wherein the electric motor 'is mounted; this casing, which is formed of thin sheet metal and is preferably cylindrical throughout with its rear end 28 closed as indicated in Figure 1, having in any event its front portion inwardly cylindrical as at 29 and stiffened as by an outwardly projecting corrugation or flange 30. The studs 26 of the intermediate driving member 13.
carry, in rear of the disc portion 18 of said member, as many friction wheels D (see Figures 7 and 8) each of which is provided with an indiarubber tyre 31 .of such effective diameter as to be adapted to fit tightly between the inner periphery of the cylindrical portion 29 of the casing C and a cylindrical portion 32 of the armature spindle, this portion 32 being immediately in rear of the journal 23. As shown, each wheel D consists of a pair of metal discs 33, 34.- clipped together as at 35 so as to hold the tyre 31 securely upon their conjointly-presented cylindrical 1111lpOrt-10I1;:i7l18 discsbeing cen trally apertured at 36 to revolve upon'one of the studs 26; whilst lubrication. is provided by a bush 37 ofoiled felthcld inpositien between. the discs 33, 34 as shown in Figure 7.
,It will thus-beseen that, as :thearmature spindle 32, 23 revolves, it will cause the Wheels 1) .to roll inconta-et with the cylindricalportion29 ofthe casing C, and, through the studs 26, will impart rotation to the intermediate driving [member B which in turn will carry roundwith it the buffing member A.
This buffingmemberA carries .an elastic polishing pad (see'Figure 1) comprising an annular tube 38 of'in'dia rubber which .rits
within the cup-shaped portion 11 of the member A so as to form anelasticcushion or backing for an annular facing-piece 39 of cha-mois leather (or other suitable material or fabric). The inner or rear end of the facing-piece 39 is distended, in rear of the cup 11 andcushion 38,.bya disc .40 of resilicntsheet-material (suehas celluloid for example) sprung into position so as to hold the rear margin of the facing-piece tightly within the circumferential corrugation 116 of the member 13; whilstthe outeror front end of the facing-piece 39, retroverted over the.
marginal flange '12 of the member B, is intur'ned and again retroverted within the annular space 41 between said flange and the motor.
rings-2 from their positions, whenever required.
The electric motor E (Figure 1) may be of any suitable type adapted for being housed within the casing Gas indicated. In the example illustrated, 4-3 are screws for securing the motor in position, whilst 44; is a screw-plug of insulating material constituti ng anabutment for one of the spring-influenced carbon brushes Wl'llGll bear upon the rotary connnutator indicated at d5. The casing C is mounted upon a handle F pr'ojecting radially from the casing and formed with an axial passage d-(ifor the flexible leads 4-? conveying electric current to the The handle F hasa ferrule 52 secured by means of a union nut 4-9 to a socket .48 projecting radially from the casing C,
this socket containing, within a chambered block [50 of insulating material, a' spring-;
influenced snap-over switch of well-known type controlled bya push-plece 51 slidable to-and-fro transversely of the handle F so as ,to be capable of bein. readily actuated by the thumb of the operator.
It is to be understood that the structural'details described in the foregoing are given only byway of example, and that the actual form and construction of the applianc'e as a whole may be varied considerably within the limits definedby the subjoined claims. 1
Iclaimt- 1. A mechanical appliance for polishing the fingernails by friction, comprising an electric motor having a. rotary shaft, a retatable cup-shaped buffin g member,a lining for said bailing member consisting of an elastic pad which extends around the inner periphery of sand member and. is faced with polishingmaterial, and meausfor connectmg said shaft Wlfll said buffing member.
2. A mechanical appliance for polishing the fingernails by friction, comprising an electric motor having a rotary shaft, a casing :for said motor, a cup-shaped buffing member rotatably mounted on said casing, alining for said buffing member consisting of an elastic pad which extends around the inner periphery of said member and is faced with polishing materiahand'means for connecting said shaft with said buffing member.
3. A mechanical appliance for polishing the fingernails by friction, comprising an electric motor having a rotary shaft, a cas- ,ing for said motor, an intermediate driving memberlrotatably mounted on said casing,
a bufling member of circular form detachably secured to said intermediate driving member, a lining for said. buffing member consisting of an'elastic pad faced with polishing material, and epicyclic' gearing connecting said rotary shaft with said intermediate driving member.
4;. A mechanical appliance .for polishing the fingernails by friction, comprlsmg an electric motor having a rotary shaft, a casing for said motor, an intermediate driving cured to said intermediate driving member,
a lining for said bufling member consisting of an elastic pad which extends around. the inner peripher of said'member and is 10 faced with polishing material, and epicy r olic gearing connecting said rotary shaft with said intermediate driving member.
PERCY SELWYN NEWBOUND.