US2186627A - Hair cutter - Google Patents

Description

Jan. 9, 1940. F. L. DAVIES 2,186,627

' HAIR CUTTER Filed July 28, 1957 Francis LI] vies .2" y 6M ozucna Patentecl Jan. 9, 1940 UNITED STATES PATENT OFFICE 1 Claim.

This invention pertains to hair cutters generally, and more particularly to electric dryshavers, hair clippers, and the like.

. The invention has primarily for its object to provide electric illuminating means for devices of the foregoing character to facilitate their use.

Incidental to the foregoing, a more specific object of the invention resides in the provision of an electric hair-cutting device, having a socket associated with its casing for reception of an electric bulb, so positioned as to illuminate the working end of the device, and the surface upon which the same is used, thus eliminating objectionable shadows resulting from fixed illuminatioman'd enabling the operator to perform a faster, cleaner, and more satisfactory job.

A still further object is to provide electric illuminating means in combination with an electrically operated device, both receiving their current from the same circuit, or source of supply, thus eliminating a multiplicity of wires, or use of bulky, heavy dry cells for the electric bulb.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the novel construction, combination, and arrangement of parts, substantially as hereinafter described, and more particularly defined by the appended claim, it being understood that such changes ln the precise embodiment of the herein disclosed invention may be made as come within the scope of the claim.

In the accompanying drawing is illustrated one complete example of the physical embodiment of the present invention constructed according to the best mode so far devised for the practical ap' plication of the principles thereof.

In the drawing:

Figure 1 is an elevation of an electrically operated razor embodying the present invention,

parts being broken away and in section to more clearly illustrate structural details.

Figure 2 is a plan view.

Figure 3 is a detailed section through the top section of the casing, taken on the line 3-3 of Figure 1.

Figure 4 is a diagram of the electric circuit employed.

Referring now more particularly to the accompanying drawing, the numeral I designates a split casing comprising upper and lower sections 2 and 3, respectively, which are preferably formed of moulded fibrous composition, although metal or other material may be used. While the invention has been shown and will be described in connection with an electric razor for illustrative purposes, it is to be understood that the principles thereof are equally applicable to-eiectric hair clippers, tool-operating devices,'and the like, and, therefore, in hereinafter referring to electric razors, it is contemplated to include analogous devices.

Secured to the front of the casing I is a cutter head 4 locked In operative position by a set screw ii, which allows quick detachability of the head for the purpose of cleaning. Housed within the casing, and secured to the lower section 3, is a universal motor 6 for actuating the cutter I carried by the head 4. A thumb wheel 8, fastened on the motor shaft and projecting through an opening 9 formed in the top section of the casing, allows manual rotation of the motor shaft for initial starting.

The foregoing is more or less conventional, and, therefore, forms no part of the present invention other than in the combination hereinafter set forth and claimed.

In the preferred forin of the invention, the top section 2 of the casing is provided with a central longitudinal hood I0, either formed integral with the hood, as illustrated, or attached thereto as a separate element. hood projects slightly above the normal top of the section 2, and terminates in a front opening I I spaced slightly rearwardly of the thumb wheel 8, so as not to interfere with the manipulation of the same, while the sides of the hood provide a guard to prevent accidental engagement of the operators finger with the starting wheel, and resultant slowing or stopping of the motor. The rear end of the hood I tapers 'dowlnwardly toward the section 2, giving a streamline effect, as best shown in Figure 1. A transverse strengthening rib I2 extends across the interior of the hood I0, andcarries a contact I3 preferably of conventional resilient type.

Mounted within the hood, forwardly of the rib I2, is a clip I4 comprising resilient spaced fingers I4 for reception of the shank I5 of an electric bulb I6. A pin Il carried by the shank, and projecting through a suitable opening in one of the arms I5, serves to hold the bulb against longitudinal shifting within the clip I4, and maintains contact with the terminal I3. While one form of bulb mounting has been illustrated and described in detail, it will be readily apparent that any conventional type of bulb socket may be employed without affecting the invention.

As illustrated in Figure 1, the motor 6 is supplied by a circuit I8 in which the bulb I6 is connected in multiple by the line I9, and in instances The forward portion of the where the current supplied to the motor is too large for the capacity of the bulb employed, a resistance 20 may be inserted in the line l8. However, the specific form of wiring is optional, 5 it being the essential purpose of the invention to supply the motor and bulb through one circuit. From the foregoing explanation considered in connection with the accompanying drawing, it will be seen that an exceedingly simple, inexpensive, and attractive means has been provided for illuminating electric devices, such as razors, hair clippers, and the like, which materially facilitates use of the devices, in that both the tool or operable element, and the work, are effectively illuminated without objectionable shadows, which usually result in all fixed arrangements of lighting, regardless of how well they are placed.

Replacement of the electric bulb when necessary is readily accomplished, either through the opening ii in the front of.the hood, or by detachment of the upper section 2, which is secured to the lower section by screws or other suitable fastening devices. The additional expense of equipping an electrically operated device with the present invention is negligible, necessitating only the added cost of the bulb and contacts, one

of which serves as a socket.

Due to compactness and simplicity of design, it will also be seen that the slight projection of the hood l0 above the upper section 2 of the casing will cause no noticeable interference or awkwardness in handling the device, inasmuch as the hood will normally rest within the palm of the hand of the operator.

I claim:

In an electric hair-cutting device including, an elongated casing adapted to be gripped in the hand of an operator and substantially housed therein throughout its entire length, a motor housed within the casing. and provided with a starting wheel projecting through the top of the casing, a cutter head carried by the forward end of said casing and projecting beyond that portion covered by the hand, a hood formed integrally with the top of the casing and extending longitudinally thereof under the portion covered by the hand of the operator, said hood being open at its forward end rearwardly of the forward end of the casing, the sides of the hood extending forwardly to straddle said starting wheel and prevent undesired contact of the operators finger with the sides of the wheel, 9. depending transverse web within said hood rearwardly of its opening, and an electric contact button carried by said web, a spring clip mounted within said hood forwardly of said transverse web, and an electric bulb detachably secured within said clip and engaging said contact button for 11- luminating said cutter head.

FRANCIS L. DAVIES.

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