US1814372A - Electric manicure - Google Patents

Description

July 14, 1931. 1. M. ELDRIDGE 1,814,372

ELECTRIC MANIGURE Origipal Filed May 3. 1926 INVENTOR Y 1' a 'Mj/dr/dqe HER ATTORNEY Patented July 14, 1931 UNITED STATES OFFICEI' IDA 1V1. ELDRIDGE, or LOS ANGELES, CALIFORNIA,ASSIGNORUF ONE-HALF 1'0 LENA n.

HOEFLER, or LOS ANGELES, CALIFORNI ELECTRIC MANICURE Original application filed May 3, 1926, Serial No. 106,519. Divided and this application 1928. Serial No. 261,642. Renewed December 17, 1930.

This invention relates to a machine for manicuring, and especially to a power driven device of this character.

This application is a division of application, Serial No. 106,519, filed May 3, 1926,

and entitled: Manicuring device.

The process of manicuring has heretofore usually been performed by various manually manipulated instruments, such as files, buffers, or the like. Attempts have been made to provide power driven tools or implements V for this purpose, but so far as I know, there is a likelihood of painfully injuring the nails or the fingers. For example, when removing the cuticle with such a power driven device, there is a danger of running it too far under the hem of the nail. Similarly, when using an emery paper disc for removing the feather edge of the nails after filing, there is a danger of the disc being urged too strongly underneath the nail, whereby painful, even if minor, injuries may be inadvertently inflicted. In furthering some of these objects, I make use of a guard for the instrument that insures against painful injury. While such a guard is simple, yet by its application to a manicuring device that is motor driven, the commerical utilization of such a device is rendered entirely feasible and safe. It is accordingly one of the objects of my invention to provide a novel form of guard for the various rotating abrasive or cutting implements. From another aspect, my invention can readily be incorporated in machines adapted to be used for the cleaning and polishing of toe nails as well as finger nails.

My invention possesses many other advantages, and has other objects which may be made more easily apparent from a consideration of one embodiment of my invention. For this purpose I have shown a form in the drawings accompanying and forming part of the present specification. I shall now proceed to describe this form in detail, which illustrates the general principles of my invention; but it is to be understood that this detailed description is not to be taken in a limiting sense, since the scope of my invention is best defined by the appended claims.

Referring to the drawings:

filed. March 14,

Figure 1v is perspective; view. of a com plete manicurmginstrument embodying my invention; and j j F1g.'2-1s a sectional view of a rotating abrasive attachment that forms the operative 5 3.,

portion of the instrument shown in Fig. '1. V

g In Fig. 1, I show a casing 11, in which there is housed a source of motion, such as a small. electric motor. A rotating shaft 12 is connected to the motor. and connects to a 5;

flexible shaft 13, which permits the various implements. to be readily operated in any position. A knob 14 connects to a switch inside casingll for controlling the motor.

Since my present invention is not concerned with the source of motion nor the transmission of its power, further description thereof is considered unnecessary.

The free end 15 of the flexible shafting 13 carries any one of a number ofinterchangeable instruments, such as an emery wheel,

adapted to be driven by the shaft. This attachment includes housing 25 that serves as a bearing for the rotating part 26. A pin 19 can serve to hold housing 25 in place with respect to shaft 13, by engaging a bayonet slot in the extension 15 of the shaft 13. The housing may also have an integrally formed knurled flange 20 which may be readily gripped during the manicuring operation. The rotating part or spindle 26 has an enlarged portion 33 with a slot 31for engaging a projection on the end of the flexible shaft, 13, whereby it may be driven.

The end of spindle 26 has an enlarged if flange 27, serving as a support for an abrading disc 28, made for instance from emeryinstance, the edge of the disc 28 is guarded 1 by a flange 31 which projects annularly around the edge and yet is thin enough to permit it to enter beneath the nail 30. This flange 31 has a thin annular surface in about the same plane as that of disc 28. It can 5 conveniently be formed integrally with the housing 25. It serves efliciently as a stop, contacting with the flesh under the nail, to prevent the edge of disc 28 from entering into the space between the bottom of nail 30 and the flesh underneath it. The guard is also useful in connection with the operation of the disc in other Ways.

I claim: V V

1. In a nail treating device, a rotating 15 operating disc, and a stationary, thin flange extending over the edge ofthe disc.

2. In a" nail treating device, a rotating disc, and a thin flange having a thin annular surface in about the same plane as theflisc.

-3. In a nail treating device, a housin a spindle journaled in the housing, a t in flange formed on the housing, and a disc of abrasive material fastened to the end of the spindle and Within and close to said flange,

25 whereby the flange overhangs the edge of the disc. In testimony whereof I have hereunto set i'ny hand.

IDA M. ELDRIDGE.

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