US1730889A - Hair clipper - Google Patents

Description

Oct. 8, 1929. F. A. HOBERECHT 1,730,889

HAIR CLIPPER Filed May 13, 1926 A TTORNEY Patented Oct. 8, 1929 UNITED s'rare's PATENT OFFICE HAIR CLIPPER Application filed May 13,

My invention relates to a hair clipper.

An object of the invention is to provide means in combination with a hair clipper for removing and collecting the hair following severance.

Another object OI the invention is to provide means in association with the clipper, which will cause the hair to be drawn toward the cutters and to assume a position most offective for the cutting operation. Y

A further object of the invention is to provide a clipper having the foregoing advantages, which is safe to operate, allows for the ready change of parts to adapt the clipper for different uses, and modes of hair cutting, and withal is extremely simple in construction.

The invention possesses other objects and features of advantage, some of which, with the foregoing, will be set forth in the follow- 2 ing description of the preferred form of my invention which is illustrated in the drawings accompanying and forming part of the specification. It is to be understood that I do not limit myself to the showing made by the said drawings and description, as I may adopt variations of the preferred form within the scope of my invention as set forth in the claims.

Referring to said d a ings:

Figure 1 is a side elevation partly in section of an embodiment of my invention.

Figure 2 is a front view of the hair cutting and receiving end of the clipper.

Figure 3 is a sectional View of a portion of the clipper including the blades, and showing a modified construction of the blades.

In the embodiment of the invention illustrated in Figures 1 and 2, the clipper comprises a hollow member i, defining a chamber 5 and provided with openings 7 and 8 located at the opposite ends thereof and respectively forming the entrance and exit for said chamber. Positioned across the entrance 7 and secured to the member 1 such as by means of screws 9 is a plate 12. The latter is formed with a plurality of elongated openings 13, the sides of which on the inner side of the plate define cutting edges 14 which" are arranged to cooperate with the corresponding cutting edges 16 of a perforated blade 17 positioned 1926. Serial No. 108,717.

within the member 4 and bearing against the plate 12. The blade 17 is slid-ably mounted in bearings 18 and is arranged to be reciprocated therein by means of a crank 19 fixed to a flexible shaft 21 and engaging in a bearing 22 attached to the blade. The plate 12, which in the present embodiment of the invention serves in the dual capacity of a guard and cutter. is curved inwardly so as to conformin general with the shape of a persons head, and, as 00 is shown in Figure 1, the blade is curved correspondingly. In this manner the hair may be cut uniformly close to the scalp in large amounts during each cutting operation.

Attached to the member 4 and positioned at the exit 8 thereof is a'fiexible conduit 23 which is arranged to be connected to the intake side of an air pump 24 or to any other suitable source of suction. In the present embodiment of the invention the clipper is arranged to be power operated, and as shown in Figure 1, the shaft 21is arranged'to be driven by the pump driving means.

In the operation of the clipper, power is applied so that the blade is placed in motion and a suction produced in the tube and chamber. The clipper is then held in desired proximity to the head whereby the hair, due to the suction in the chan'iber, will be drawn toward and *between the cutting members. In this manner it will be noted that the hair is placed in the most advantageous position for cutting, and that the cutting may me effected efiiciently and uniformly. Furthermore by thus making it possible to cause the hair to project from the scalp, the clipper may. by pressing same against the scalp, cut the hair very close.

It will be understood that after the hair is cut, the portion thereof severed from the head will be drawn through the tube, whereby it may be collected in a suitable receptacle I such as shown at 25. In this manner, the necessity for brushing away the cut hair or otherwise removing it by the usual timeconsuming and inefficient methods is entirely dispensed with.

It will thus be clear that. with my device not only may the hair be cut or trimmed in much less time, but that the falling of the short hair on the clothes and on the person of the operatee Will be prevented.

In Figure 3, a slightly modified form of the clipper is shown. In this embodiment the blade is formed straight and the cooperating face of the guard plate is formed correspondingly. This construction has the advantage of permitting a simpler grinding operation for resharpening the cutters.

I claim:

1. In a hair clipper, a hollow member de fining a chamber having an entrance and an exit, a cylindrically exteriorly concave perforated plate covering said entrance, a cutter blade mounted in said chamber for reciprocation with said plate, and means tending to evacuate said chamber through said exit.

2. In a hair clipper, ahollow member defining a chamber having an entrance and an exit, an. exteriorly-concave perforated fixed blade covering said entrance, a correspondingly shaped blade mounted for reciprocation in said member and arranged for cooperation with said fixed blade, and means tending to evacuate said chamber.

3.- In a hair clipper, a hollow member defining a chamber having an entrance and an exit, a cylindrically concave slotted cutter plate fixed across said opening and providing cutting edges at opposed sides of a slot thereof, a corresponding cylindrically concave slotted cutter blade reciprocable over the inner surface of said plate and providing cutting edges at opposed sides of a slot thereof for a hair cutting cooperation with said first cutting edges, means operable to effect a reciprocatory movement of said blade over said plate,and suction means tending to evacuate said chamber through said exit.

In testimony whereof, I have hereunto set my hand at Oakland, California, this 1st day of May, 1926.

FREDERICK A. HGBERECHT.

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