US2281841A - Razor - Google Patents

Description

y 1942- N. HOLQSCLAW' 2,281,841

' RAZOR Filed July 16, 1938 4 Sheets-Sheet 1 lama.

May 5, 1942. N. HOLSCLAW RAZOR Filed July 16, 1938 4 Sheets-Sheet 2 May 5, 1942. N. HOLSCLAW RAZOR Filed July 16, 1938 4 Sheets-Sheet 3 May 5, 1942. I N. HOLSCLAW RAZOR Filed July 16, 1958 4 Sheets-Sheet 4 Patented May 5, 1942 RAZOR Neil Holsclaw, Chicago, Ill., assignor of one-half to Fred E. Sudlow, Rock Island, Ill.

Application July 16, 1938, Serial No. 219,620

2 Claims.

This invention relates to improvements in mechanized shavers and more particularly to the heads thereof. The main objects of this invention are to provide such a head of improved construction and design; to provide a head which will be adapted positively to shear in a single sweep of the razor all of the hairs on the surface operated upon; to provide a mechanism of this type with a bearing face formed and adapted to raise and hold erect the hairs to be sheared in a position thus provided for, such as to facilitate and assure that they will be sheared close to the skin; to provide a durable mechanism of this character wherein a plurality of operatively succeeding shear edges are employed; to provide in a razor mechanism of this character means to support a series of rows of Shear cutters in effective position and especially in staggered relation to one another; to provide in a shear head a plurality of rows of shear couples arranged and actuated to follow in a single sweep of the head one row after another with successive shear couples in mutually offset relation; to provide and organize a face bearing stator and cooperating oscillator, having shear couples arranged staggerwise in effectively successive rows extending crosswise of general shaver movement; and to provide a pair of relatively slidable shear members of this kind in effective relation to each other and to a driving means.

These and other objects will be apparent from the description, drawings, and claims hereinafter set forth.

This invention in several forms is illustrated by the accompanying drawings in which:

Figure 1 is a view, partly in cross-section, of one form (first) of my improved razor head in position on a support.

Fig. 2 is an enlarged top plan view thereof, the middle part of the face plate being broken away and showing the movable cutter.

Fig. 3 is a further enlarged cross-sectional view taken on the line 3-3 of Fig. 2.

Fig. 4 is a still further enlarged fragmentary perspective view, partly in section, of the fixed form shown in Fig. 7, partly in cross-section and enlarged as in Figure 6.

Fig. 9 is an enlarged fragmental top plan view of a fourth form of this invention.

Fig. 10 is a cross sectional view taken on the line lll--l0 of Fig. 9, enlarged as in Fig. 3.

Fig. 11 is a fragmental perspective view of the device shown in Fig. 9, partly in cross-section and enlarged about like Fig. 10.

Fig. 12 is an enlarged fragmental top plan view of another (fifth) form of this invention.

Fig. 13 is a cross-sectional View taken on the line l3|3 of Fig. 12.

Fig. 14 is a fragmental perspective view, partly in cross-section, of the device shown in Figure 12 and also enlarged about as in Fig. 11.

Fig. 15 is a fragmental top plan view of another (sixth) form of this invention.

Fig. 16 is a cross-sectional view taken on the the line |6I6 of Fig. 15 and enlarged like Figs. 3 and 10. v

Fig. 17 is a fragmental perspective View of the device shown in Fig. 15 and also being enlarged like Figure 14.

Fig. 18 is an enlarged fragmental top plan view of another and seventh form of the present invention.

Fig. 19 is a cross-sectional view taken on the line Ill-I9 of Fig. 18.

Fig. 20 is an enlarged perspective view of the device shown in Figure 18, partly in cross section.

Referring in detail to the first form of my invention and especially to Figs. 1 to 4 of the drawings, my improved razor head I is seated in an elongated channel 2 formed in the upper end of a, handle 3, wherein is housed the usual motor, not shown, and to which is attached a drive shaft 4, shown in dotted outline in Fig. 1. This shaft 4 extends through an aperture 5 in the lower part of the head I where it is connected to reciprocate a hollow cutter 6 slidable lengthwise within the guide chamber of the hollow shear head I.

The thin top face part of head I is provided with a series of rows 1, 8, 9, and Ill of parallel narrow fixed shear cutters II. The cutters of one row are staggered with respect to those in the next row, and each cutter is provided with a nearly vertical leading edge 12, and a, dull tailing edge [2. Each cutter II has a curved upper surface ll so that the other edges are all tapered to a fine leading point H.

A cutter connecting web [3 extends across the middlepart of the cutters for each of the rows.

Fig, 3 is a fragment&], perspective view of the These webs are provided with tapered fore and.

aft edges IS, the lines of which blend with the cutters to which they are integrally attached.

Each row of cutters is supported at the cutter ends by the upward flanges of channel strips [4, except that the outer ends of the outer cutters are carried by the side walls of the head.

When the shear head is drawn across the face of the object being shaved, the hairs are picked up by the leading edges l2 of the cutters. Then as the hairs slide along these tapered edges they are sheared off by the cross action of the movable cutter 6. If by any chance the hair is not sheared off by the time it reaches the web 53, it will again be straightened out at that point and probably sheared off. Should a hair escape bein sheared off by the first row of cutters, it will'be clipped off by some other cutter before the entire face of the shear head has passed over it, due to the sequential position and action of the cutters. The web I3 provides for positioning the hair vertically so that it may readilybe sheared off close to the skin.

The novel cutter t, here employed in. reciprocating shear movement, comprises .a series. of channel-shaped members I5 arranged. to seat aroundand coact with the channels it. The cutter 6 is provided with a flat outer portion [6 comprising a series of four-parallel face parts each of a width approximately that of the length of .each' of the cutters l I, and each face comprises a series of transverse shear elements. When these reciprocate under said cutters H they cally, so that it may be sheared off close -to the 1 skin.

The modified construction shown inFigures '7 and'S' (third form) is substantially-the sameas that shown in Figs. 5 and 6, except thatuhere the shear head is constructed so that the same may only be drawn across the face, in one direction for shearing action, whereas in the dev ce of Figures 5-and 6 and in the preferred embodiment of Figures 1 to 4, the device isarrangedto be drawn in both forward and backward directions.

In the constructions of Figures '7 and B the-rear edges of the cutters II areprovidedwith heels [9 and blend'with and/are formed integrally on the channel members 2!].

In the form, shown by Figs. 9, 10 and 11, the

shear-head comprises a series of rows of cutters 2|, alternate rows having their cutters inclined oppositely.

In this said construction, asinthe preferred embodiment shown by Figures 1 to La series of "Webs 26 and bars- 23 are arranged lengthwise of the shearhead to provide a means for raising the hairs to a vertical position so that they may be sheared.

"The form of construction shown in Figs. 12, 13 and 14 has a head 22 formed with. a' relatively heavycenter bar 24 and with two minor bars or webs 25 on each side. These bars and the sides 2 1 are all connectedby rowsof cutters 28 arranged staggerwise. The leading edges are shown at .29..

Inthe form of construction shown in Figures .15. and ;16,:-each. of the cutters Sills providedwith a, leading edge whichblends intothe triangularlyinto the diamond-shaped webs 32.

shaped bar 31 which takes the place of the bar 24 shown in Figures 13 and 14.

In the form of construction shown in Figures 18, 19 and 20 applicant has provided a series of criss-cross webs 32 forming a multiple diamond-shaped pattern. A channel bar 33 is provided in the medial portion of this shear head in order to give support for cutter webs 32; and the fore portion of a shear head 34 is provided with a series of leading edges 35 which blend This is also true of the aft portion of the head, wherein the diamond-shaped webs are provided with leading edges 36 which blend with the web. As will be apparent from the drawings, this shear head is adapted for effective movement in one direction only.

All .of the forms herein shown provide a shear headwhich is designed to positively clip the hair with a minimum of effort. Each is designed to provide a, means whereby hairs ordinarily not clipped 'by'themechanized razors now on the marketwillbe brought to a vertical position on the. face and actually sheared.

It, is also to, be noted herein that all of the moyable. cutters shown. in the various modifications. are specially designed to coact with the corresponding shear heads and. are built to fitthe same.

fIt.is.to be. understood that some of the details set. forth maybe altered or omitted without .-departing from the .spirit of the invention asdefined by the; appended-claims.

I claim:

.1. An elongatedrazor, headadapted for-shave movement crosswise thereof and comprisinga face plate. .of, shear. cutter. design. in combination with. a cutter. .plate -also. of. shear. design, .the latter. plate;being..reciprocable lengthwise of. said head, said faceplate comprisinga plurality of parallel .bars disposed; lengthwise .of. said head .and. each. having .a :series of shear. cutters disposed. crosswisethereon. and in staggered relaticn to the corresponding cutterson the next adjacent bar or. bars. and.thegsecondsaidplate having distinct cutter elements. corresponding with and .complementaryto the several said outters. respectively on the said faceplate, saidcutters onsa-id faceplate havingleading .tipsof wedge-shape with flared sides adapted to lift prostrate or recumbenthairs upwardly .and. into good cutting. position, and said bars having between mutually adjacent cutters certain. edge partswhich are formed with backwardly inclined faces adapted to reach under recumbent. hairs and lift them into .bettencut'ting position.

2. An elongatedrazonhead adaptedfor shave movement crosswise thereofand comprisinga faceplate of shear .cutter. designin combination with a cutter plate also of shear design and, the latter plate being reciprocable lengthwise of said head, said-face platecomprisingaplurality of parallel bars disposed lengthwise of said-head and each having 'a' series of shear cutters disposed crosswise thereon'and instaggered relation to the corresponding cutters onthenext adjacentbar or-ba'rs andth second said plate having distinct cutter elements corresponding with and complementary to the sevralsa'id cuttersrespectively on the said fa'ce plate, said cutters on said-face plate having' le adingtips of wedgeshape with flared sides adapted to lift prostrate or recumbent hairs upwardly and ;into good cutg position.

NEIL HOLSCLAVT.

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