US1654758A - Hair clipper - Google Patents

Description

Jan. 3; 1928. 1,654,758

B. A. SCHMITT HAIR CLIPPER Jan; 3, 1928.

B. A. SCHMITTI HAIR CLIPPER Filed Nov. 5, 1 925 2 Sheets-Sheet 3 Patented at. 3, 192a.

UNITED STATES:

PATENT OFFICE.

I BERNARD A. scnmrr'r, or BROOKLYN; NEW YORK.

. HAIR CLIPPER.

Application filed :novembeia, 1925. swarm}. saw.

The-present invention relates to hair clippers wherein two toothed plates reciprocating relative to each other out the hair at the edges-of the co-acting teeth an a'wellknown manner. a

In order to cut the hair efliciently and not pull the same, the teeth on both plates must be sharp. Of course, in use, the teeth become dull and it is necessary to re-sharpen them. I

It is one of the principal aims of the present-invention to provide a clipper construct ed so that the blades can be removed easily and re-assembled in position in the clipper without mechanical skill.

Another object is to house the mechanism for reciprocating the blade so that it. is protected from hair, dirt,- etc. @ther objects and features of novelty will be apparent from the description taken in connection. with the drawings, in which:

Figure 1 1s a plan view of a clipper constructed in accordance with the present insubstantially 'on' the line 13-13 of Figure 8,

' Figure 12 is a vention, certain parts being broken away;

Figure 2 is a side elevation of the clipper; Figure 3 is a sectional elevation taken substantially on the line 33-of Figure 1, looking in the direction indicatedby the arrows;

F igurei is a plan View of the stationaryblade; A

Figure 5 is a plan View of the reciprocating blade; I

Figure 6 is a sectional elevation taken substantially on the line 6-6 of F gure 1,

looking in the direction indicated by the Figure 7 islaperspective View of the blade supporting end of one of the handles of the clipper Figure 8 is a plan vlew of a modified form of the invention;

Figure '9' is a sectional elevation taken substantially on the line 99 of FigureS, looking in the direction indicated by the Figure 10 ls'a sectional elevation taken substantially on the line 10-1-0 of Figure 8, looking in the direction indicatedby the arrows; V I

Figure 11 isa plan view of the reciprocating blade;

blade; and

Figure 13 is a sectional elevation taken dle 10. I

apart bya compound coiled expansion plan view \of the stationary looking in the direction indicated by the' sheet metal by the punch and die process,

and as indicated in Figure 1, are channel] shaped in cross section. No machiningo'f thehandles is required. This is'an important feature, as the handles can be made" at a small fraction of the cost of solid or cast handles which require machining. One of the handles, as 10, is extended and formed 'with a flat blade support-17. As clearly' shown in Figure 7 one edge of this support is provided with a flange 18 formed with the spaced shoulders 19, which, as explained hereinafter, cooperate with the stationary blade to hold it against displacement inits own plane. Adjacent the edge opposite the flange, the support is provided with a pair of flat bosses 20 on which the reciprocating portion of the flat surface of the support, so that the blades may be clamped under tension as explained hereinafter.

blade is held out of contact with the major The other handle 11, at one end, has its side flanges extended to provide the ears 21 and 22; These ears, as indicated imFigure 6, are pressed together and disposed between thje flanges of'the handle 10 and pivotally mounted there on a pin 23' extendingthrough the flanges of the handle 10 and said ears. In this manner the handle 11 is pivotally mounted on the handle 10 so that it may oscillate to and from said han- The handles are normally forced spring 14, the ends of which fit in sockets 24 and 25 in the web portions of the handles-. When the blades are removed from the clipper, the extent to which the handles may open up under the influence of the spring is limited by shoulder 26 (Figure 6) striking the portion 27 of the adjacent flange of the handle 10. i I

The reciprocating blade 13 is positioned against the bosses 20' on the support 17 and is provided with an end extension 28 formed with anotch 29. A 'pin 30- extending through the flanges of the handle 11 is disposed in this notch so that oscillation of the handle 11 reciprocates the blade. .A portion' of the web of. handle 11 adjacent the clamped together and to the support by the flat-headed screw 15 and nut 16. The screw 15- is, positioned between the bosses 20, so

pinBO is cut away so that the blade can be removed from engagement with the pin 30. The stationary blade 12 is positioned against the reciprocating blade so that the reciprocatin blade slides between the support 17 an the stationary blade 12.- The stationaryblade is against movement-in its own plane by pr0- -.viding the notches 31 which engage the.

shoulders 19 of the flange 18.. 'It--'will .be seen that this blade can be removed merel by sliding it'transversely on the shoulers 19.v

The blades are held'in close cont-act and that when nut 16 is screwed up tightly, the

' flange 17 tends to be bent inwardly, between said bosses, thereby afl'ording a springiness or tenslon, hitherto requiring aseparate spring to accomplish. Moreover, in this manner the teeth of the blades are held in I tightsliding engagement, so that the most of the blades, a thin chamber is formed in.

the contactingsurfaces of the bladeswherein a thin filn'r of oil may be carried. For this purpose, as shown in Figure 4,.a portion of the surface of'blade 12 adjacent the blade 13 is formed with a depression 33 which is closed on all sides. Likewise the blade. 13

is formed with a depression 34, the two depressio'ns togetherconstituting the lubricant chamben orderto introduce lubricant into this space, the blade 13 may be provided with the channels which, in one posltionv of the blade, are adapted. to register with corresponding channels36 in the'flangc 18 of the support.-

In order to remove the and sharpen them or' replace them, it is merely necessary to unscrew the mit 16. Thenthe fixedblade 12 can be" withdrawn laterally from the shoulders 19 and the slidable blade lifted vertical] 3 so y fromthe' position shown in Figure1.

It will be noted that it is a very easy matter to re-assemble'the parts and that no mechanical skill is required for this purpose.

Firstthe' slidable blade 13 is positioned 'on the support with the notch 29 over the pin removably secured 3O. Then 'the fixed blade 12 is positioned with its notches 31 engaging the-shoulders 19, and finally the screw 15 is inserted, and the parts clampedby the nut 16.

It will be noted that the mechanism for I reciprocating. the blade is almost totally enclosed or housed, thus being protected against being clogged by hair or foreign matter, 1 Y I Figure 8 shows another form of the invention in which the saw-tooth edges of the blades extend substantially at right angles to u'res 8-13, inclusive, this form oftheinv'em tion also. comprises a pair of. handles 41 the length of the handles; Referring to Fig and 42 of channel form in cross section and 1 :preferably pressed from sheet metal, as 'describedin connection'with the first formof the invention. Thc handle 42 is provided with an integral extension 43 which constitutes the-support for. the bladesi 41 is pivoted'to the handle 42 on the pin 44. For. this purpose theflanges of han-- die 41 at this end arepressed'togethenas shown in Figure 13, so'that they lie within the flanges of the handle 42, and as shown in Figure 8,-one ofthese flanges of handle 41 is extendedto provide the linger 45 which engagesin the notch 46 in the slidable blade Because of'this' arrangement, oscillat1on of handle 41 will reciprocate the blade 47 The handles are normally forced apart by a compound coiled spring 48 the ends ofwhich are seated in depressions 49 in the Websof the handles; As the spring is '10- cated near the pivot pin 44, the flanges on the handles partially house the same.

As shown in Figure 13, the top flange of handle 42, adjacent the pivot pin '44,is exthe toothed edges of the blade, is flanged downwardly as indicated at 5,0 and 51. .Parts of these flanges 50 and 51 are cut away to'provide the 'shoulders 52 which en-' 53 on the stationary gage in 'the notches blade 54; P

As shown, adjacent this extension, the handle no i The slidablelblade 47 is positioned be tween the stationary blade 54 andthe support 43 as shown in Figure 9, and the parts are clamped together by a. flat-headed screw 55, the header which is counter-sunk in the fixed blade 54 and provided with-a. .lugwhich engages the notch- 56 to hold the sdrew from rotating. This screw extends through the 'blade54, the slot 57 in blade 47 and the support 43 which is provided with a boss 58 around the screw and against whicha'. nut 59 is screwed., The support 43 is formed with" two fiat bosses'43"l ike"the-bosses 20 of the otherl--form,."and for the same purr e w As described in 'connectlon-with the other form of the invention, the adjacent surfaces 105, tended laterally across the handle 41, and the support portion 43, at the edges opposite a 47 canbe taken outin chambe bla of the blades are provided with the depres sions 60 and 61 to form an oil chamber and to give added resiliency to the blades. The depression 60 of the slidable blade 47 has channels '62 leading thereto, and these channels in one position of the blade register with the channels 63 in the flanges 50 and 51 so that lubricant may be introduced to the chamber.

. In order to remove the blades for sharpenin or inspection or replacement, it is mere y necessary to unscrew the nut 59,

whereupon the fixed blade 54 ma 'be with drawn laterally and then the sli able blade caseit has not already fallen out.

To assemble the parts, the slidable blade 47 isplaced in position against the bosses 43?:

of the support and with the finger 45 in the notch 46. Then the fixed blade 1sv positioned with its notches 53 receivin' 52, and the screw 55 inserte and the parts clamped by screwing up the nut 59.

Although two forms of'the invention-have been described in detail, .it is to be'understood that the invention is not limited to the exact details shown but includes-modifications and changes which come within the scope of the appended claims.

Havin' thus described the invention, what is claime as new and desired to be secured by Letters Patent is:

1 In a clipper having a pair of toothed cutters mounted for relative sliding movement on each other, the im rovement comprising a closed lubricant c amber-between said blades formed by a sli ht depression in I one of said blades and a c annel extending from said chamber to the outer edge of the blade for introducing lubricant into said 2. In a clipper having a pair of toothed cutters mounted-,for relative sliding movement on each other', the im rovement com-- prising-a closed lubricant c amber between the contacting facesof said blades formed by slight'depressions in said faces and a channel extending from said chamber to the outer edge of the blade for introducing lubricant into said chamber.

3, 'A clipper, including in combination, amember comprising a handle .and a blade .sup rtintegral therewith, a stationary e,meansremova yo mgsar c bl h ld' bled the shoulders on saidsupport against movement in its own plane, a second blade slidable relative to the stationary blade, means removably clamping said blades and support together whereby both blades maybe removed merely by unclamping said means, a second handle pivoted on said member, means connecting said second handle and slidable blade to reciprocate the latter by oscillation of said handle, said support havin a flat portion with a flange at one edge, t ere being a -depression in at least -one face ofthe contacting faces of the blades to provide a lubricant chamber, and channels in said flange and blade 'for introducing lubricant into said chamber. I I

4. A clipper, including in combination, a member comprising a handle anda" blade support integral therewith, said blade support being provided with a substantially flat portion having a flange at one edge, a stationary blade having means on its back edge for cooperating with said flange to hold said blade against movement along its length, a

second blade slidable relative tojthe stationary blade, means removably clamping said blades and support to ether whereby both blades may be remove merely by unclamping said means, a second handle pivoted on said member, and means connecting said second handle and slidablev blade to reciprocate the blade by oscillation of said handle.

5. A clipper according to claim 4 wherein said holding means comprises .interlocking shoulders and In the ln being on onepart'and'the sho ders on t 0 other.

6. A clipper according to claim 4 wherein said flange is provided with shoulders and clamped, said clampingmeansbeing located between said Iii" test-imonyireof 1- hereunto afiix my signature. g g BER ARD 4 m said stationary blade is provided with lugs, said blade being removable from said ing to claim 4, where-

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