US1487189A - Clipper - Google Patents

Description

March 18 1924 L. J. WAHL GLIPPER Filed July 6. 1920 Patented Mar. 18, 1924.

LEO J'. WAHL, OF STERLING, ILLINOIS.

CLIPPER.

Application filed July G, 1920. Serial No. 394,055.

`T 0 all whom t may concern accompanying drawing, forming part of this specific-ation. v

My invention relates primarily to clippers intended for use in barber shops,'though it is capable of use for clipping the hair of animals and for clipping other material than hair.

A clipper constructed in accordance with x my present invention is intended to be operated by an alternating electric current its principle of operation being the provision of anelectromagnet or magnets (3o-operating with an armature bar in such manner that the alternations of the current will vibrate the armature bar'to operate' the movable clipper blade.

One object of my invention is to so construct and mount the armature bar that its tension against vibration may be varied.

Another object of my invention is to so connect the movable clipper blade to the armature bar that it will be held in proper position with relation to the stationary clipper blade through the means` of a spring Itension device, the spring tension device serving also as a driving connection. 4

Another object o-f my invention is the provision of means for adjusting the position of the armature bar to vary the amount of pressure ofthe spring tension device between the armature bar and the movable clipper blade.

Other objects of my invention will appear and be described in the specification.

. The novelty of my invention will be hereinafter more fully set forth and specifically pointed out in the claims.

In the' accompanying drawing Fig. 1 is a plan view of aclipper embodying my invention, the cover of the case being removed.

Fig. 2 is a sectional side elevation of thedevi-ce, the rear wall\of the case being removed.

Fig. 3 is au front end elevation of Fig.,1, the stationary and movable clipper blades being removed.

Fig. 4 is a sectional end view taken on thev dotted line 4 4 of "F ig. 1 looking to the right.

The same numerals of reference are used to indicate identical parts in all the figures.

In its preferred form of construction the clipper comprises a case 1 within which a pair of electromagnets or solenoids 2 are mounted. An armature bar 3 is attached to a blade spring 4, the latter being mounted in the case by means of a bolt 5, the bolt 5 exerting its strength to force the blade spring 4 against the end of the adjusting screw 6, it being noted that the end of the blade spring 4 rests against a shoulder 7 of the case 1 so that after the bolt 5 vis tight? ened the blade spring 4 is forced into contact with the adjusting screw 6. The armature bar 3 is bent approximately at right angles as at 8 and is then slightly twisted as shown more clearly in Fig. 2, and a spring driving'member 9 is attached thereto as by screws 10. rlhe spring driving member 9 is curved as shown more clearly 1n F ig. 2 and a carrier 11 is attached thereto, the carrier 11 being pro-vided with driving lugs 12 shown mo-re clearly in Figs. 2' and 3 which engage suitable openings inv the movable clipper blade 13 the latter co-operating with the stationary clipper blade 14 which is secured to the case 1 by screws 15 in the threaded holes 16 of the case 1. The blades 13 and'14 are preferably of the same or a similar construction as those used inthe ordinary hand operatedhair clipper so that they may be interchangeable with the hand operated device. An additional pair of curved blade springs 17 are held in place on the armature bar by the screws 10 and -assist the spring driving member 9 in' holding the clipper blades in proper operating Contact.

The blade spring 4 is. perforated as at 18 at a point adjacent the bolt 5 and the reduced end of a .bar 19 enters the perforation, the other end of this bar resting on a pedestal 20 which is a part of the case 1, a screw 21 being provided and passing through thebottom of the'case 1 and being threaded through the bar 19, the screw 21` being located adjacent the blade vspring 4 the construction being such that when the' screw 21 is turned in fthe direction of the".

lead of its thread, the bar 19 will be pulled toward the bottom of the 4case 1 and vwill thereby moving the free end of the armature bar downward to close the springs 9 and 17 to press the movable clipper blade 13 against the stationary clipper blade 1'4.

The cover 22 of the case l isbent downwardly as at 23 and a guard 24, preferably made of thin sheet metal and perforated to be embraced by the driving lugs 12, is fitted between the carrier 11 and the movable clipper blade 13, the guard, 24 being shaped to over- .lap the edge' of the portion 23 of the cover 22 to prevent any hair or other foreign substance from entering the interior of the case,

this part of the construction being best shown in Fig. 2, the guard 24 being omitted from Fig. 1.

rllhe rear of the ease 1 is perforated and a coil spring 25 is passed through this perforation to serve as a guard for the cable adjusting screw 6, whereupon the device is ready for use.

To remove the clipper blades from the device it is only necessary to remove the screws 15 whereupon the lstationary clipper blade may be lifted out of position thus eX- posing the underface of the movable clipper blade which may then be lifted from its engagement with the driving lugs 12 and the blades either resharpened or replaced as occasion may require.

While I have shown the adjustment for the spring driving member 9 as consisting of the bar 19 and screw 21, it is apparent that provision may be made for adjusting the position of the stationary clipper blade 14 toward and from the movable clipper lblade 13, or the movable clipper blade 13 might be rigidly mounted with relation to the portion 8 of the armature bar 3 and the stationary clipper blade be provided with a spring tension device which might be either adjustable or non-adjustable but which would hold the clipper blades yieldingly in Y operative relation.

lt -is to be noted that the spring 4 is made suiciently heavy `vso that`u it :will have strength enough to prevent the armature 3 from striking the ends of the pole pieces during the operation of 'the device, this spring acting as a movement limit for the travel'of the, armature in the direction towards the pole pieces.

meme@ Having thus fully described my invention li claim: f

1. ln a clipper the combination of a case, a clipper blade carried thereby, a movable clipper blade eo-operating with the iii-st mentioned blade, an electro-magnetic clipper blade driving mechanism, and a yielding driving connection between the clipper blade driving mechanism and the movable clipper blade for driving the blade and holding it to its seat.

2. lin a clipper the combination of a stationary clipper blade, a movable clipper blade co-operating therewith, an electro-mag netic' blade moving mechanism carried by the carrier for the stationary clipper blade and a yielding driving`connection between the blade moving mechanism and the movable clipper blade.

3. ln a clipper comprising a case carrying a stationary clipper blade andY a movable clipper blade, the combination of a moving element, electro-magnetic means for moving the latter, a yielding driving connection between the moving velement and the movable clipper blade, and means for moving the moving element in a direction other than that required to impart movement to the clipper bladevto subject the yielding driving connection to pressure to hold the movable clipper blade in proper operative position to the stationary clipper blade.

4. ln a clipper the combination of a case, a clipper blade carried thereby, a movable blade co-operating with the irst mentioned blade, an electromagnet carried by the ease, a circuit for themagnet, a spring carried armature bar, a driving connection between the armature bar and the movable clipper blade, and means for adjusting the tension gf the spring which carries the armature 5. 1n a clipper the combination of a case, a clipper blade carried thereby, a movable clipper blade eo-operating with the first mentioned blade, an eleetromagnet carried by the case, a circuit for the magnet, a spring carried armature bar co-operating with the electromagnet, a yielding driving connection between the armature bar and the movable clipper blade, means for subjecting the yielding driving connection to'tension, and means for adjusting the tension ofthe spring carried armature bar.

6. A. device of the character described comprising a supporting member, a cutting blade movably `mounted thereon, electromagnetic means for moving said blade in one direction, and spring means for moving said blade in the opposite direction, said spring means having a weakened portion.

7. ik device of the character described i comprising -a supporting member, a cutting blade movably mounted thereon, and means for vibrating said cutting Vblade comprising a. driving link and electromagnetic means for moving said link and blade in one direction energized from a source of alternating current and spring means extending parallel to said link for moving said blade in the opposite direction, said spring means having a weakened ortion t'o tune the moving parts ot saidI device to the frequency of said source of current.

8. A device ofthe character described comprising a supporting member, a cutting blade movably mounted the eon, and driving means for said blade comprisinov electromagnetic means` tor moving said blade in one direction, and spring means for moving said blade in the. opposite direction. said spring means having a weakened portion between the ends thereof.

9. A device of the character described comprisingr a support, a reciprocable blade mounted on said support, and means for reciprocating said blade comprising an electromagnet, and an armature adapted to be vibrated thereby, said magnet and said armature being relatively adjustable.

10. A- device of the character described comprising a casing having a cover member, a blade fixed relative to said casing, a blade mounted to reciprocate transversely ot said first mentioned blade, means for reciprocating said blade. adjustable tension means within the casing for pressing said blades into engagement and adjusting means eX- tending outside said casing, said tension means being held within saidl casing independently of said cover.

11. A device of the character described comprising a support, a blade fixed relative to said support, a blade mounted to move transversely otsa-id lirst mentioned blade, tension means within said' casing for holding said movable blade in engagement with said fixed blade, a vibrating armature, an electromagnet for actuating said armature and a driving connect-ion between said arma-ture and said movable blade, said driving connection being independent of said tension means.

12. A device ofthe character described comprising a casing, a movable blade mounted on said casing, and means for moving said blade comprising an electromagnet and an armature cooperating therewith, said casing being provided with means to hold said elec-tromagnet from rattling therein.

13. A device of the character described comprising a casing, a toothed blade fixed relative thereto, al movable blade cooperatingftherewith, and means for moving said blade, said movable blade having means within said casing independent of said other blade for guiding the movements thereof so that theiorward edge thereof will movel substantially parallel to the forward edge of the fixed blade.

14. A device of the character described comprising a stationary toothed blade, a toothed blade mounted to reciprocate. relal tive to said stationary blade, and means ,for reciprocati-njgv said blade comprising an elec.- tromagnet and an arn'lature adapted to be vibratedv thereby, said. electronuignet. and armature being relatively adjustable without changing the relative position of the teeth on said blades.

l5. A device of the character described comprising a support, a reciprocable blade mounted on said support, means for reciprocating said blade comprising an electromagnet, and an armature adapted to be vibrated thereby, and means for adjusting said armature relative to said magnet.

16. A device ot the character described comprising a casing, a blade mounted to reciprocate relative to said casing, means within. said casing for reciprocating said blade comprising an clectromagnet, and an armature adapted to be vibra-ted thereby, and means extending outside ot the said casing for adjusting said armature relative "o said magnet. x

v 17. In a clipper the combination of an electro-lmignetie coil, an armature tor the c oil, and a spring for mounting tbe armature to permit it to move to a point short of contact with the pole piece of the coil thereby providing a movement limit.

18. In a clipper the combination of an electro-magnetic coil, an armature t'or the coil, a spring for carrying the armature and permitting it to move to a point short of contact with the pole \piece ot the coil, and means for adjusting the spring.

19. In a clipper the combination of an alternating current electro-magnetic coil, an armature for the, coil, and a spring for carrying thevarmature and permitting it to move to a point shorty of contact with the pole piece of the coil and for moving it to a point away from the pole piece of the coil during the intervals between the periods of attraction.

20. In a clipper the combination of an alternating current electro-magnetic,coil, an armature for the coil, and a spring for carrying the ,armature and permitting it to move to a point short, ot contact with the pole piece of the coil and for moving it to a point away from the pole piece of the coil during the intervals between the periods of attraction and means for adjusting the spring.

21. In a clipper a combination of a handle carrying a stationary serrated clipper blade, a movable serrated clipper blade cooperating therewith, an electro-magnetic coil mounted in the handle, an armature `for the coil and for moving the movable clipper blade, and a spring for mounting the armature and affording movement limits tor its travel approxmately equalto the spacing of thev serrations of the blades.

22. .In a clipper the combination of a case, a stationary blade carried thereby, a movable blade cooperating with the stationary blade, an armature for operating the movable blade, an electro-magnetic device for moving the armature, a mounting for the a1'- mature, and means for applying pressure to the armature to hold the blades in operative relation, said means acting adjacent the mounting for the armature.

23. In a clipper the combination of a case, a stationary 'blade carried thereby, a movable blade cooperating with the stationary blade, an electro-magnet in the case, blade moving means comprising in part an armature and for moving the movable blade, and means for applying pressure to the blade moving means said vpressure vmeans acting at a point approximating the point of minimum movement of the blade voperating means.

24. In a clipper the combination of a case,

`a stationary blade carried thereby, a movable blade cooperating with the stationary blade, an electro-magnet in the case, an armovable clipper blade, a yielding connection "between the armature and the movable clipper blade, said connection being yielding in a direction other than the direction of movement of the blade, and means for applying pressure to the movable blade to hold it .in operative relation to the stationary blade, said means operating at a point having less movement than the movement of the movable blade.

25. lin a clipper the combination of a case, a stationary blade carried thereby, a movable blade cooperating with the stationary blade, an electro-magnet in the case, an armature cooperating with the electro-magnet and for moving the movable blade, means for applying yielding pressure to the movable blade to hold it in operative relation to the stationary blade, a portion of said means moving With the movable blade, an abutment for -t-he pressure means, the movable blade having greater movement than the movement between the pressure means and its abutment.

Liao. J. WAHL. i

DISQI-AIIVIER.

1,487,189-1160 .'J. Wahl, Sterling, `Ill. f CImER. Patent dated` March 18, 192.4. Disclaimer filed August 29, 1927, by the patentee. l Hereby enters this disclaimer to claims 4, 9, 10, 11,.-15, 16, 17, 18, 19, 20, 21, and 22 `of., the specification as issued in said Letters Patent No. 1,487 ,189, and which are in the following words, to wit:

4. In a clipper, the combination ot a case, a clipper blade carried thereby, a movable blade co-operating with the first mentioned blade, an electro-magnet carried by thecase, a circuit for the magnet, a spring carried armature bar, a driving con-y nectionpbetween the armature barand the movable clipper. blade, and means for adjusting the tension of thespring which carried the armature bar.

9. A device of the character described comprising a support, a reciprocable f blade mounted on s-aid support, and means for reciprocating said lblade comprising an electromagnet, and an armature adapted to be vibrated thereby, said magnet and said armature being relatively adjustable.

` 10. A device of the character described comprising a casing having a cover member, a blade fixed relative to said casing, a blade mounted to reciprocate transversely of said mentioned blade, means for reciprocating said blade, adjustable tension means within the casing for pressing said blades into engagementand adjusting means extending outside said casing, said tension means being held within said casing independently of said cover.

11. A device of the character described comprising a. support, a blade fixed relative to said support, a blade mounted. to move transversely of said irst mentioned j blade, tension means within said casing for holding said movable blade in engagement with said fixed blade, a vibratingarmature, an electromagnet for actuating said armature' and a driving connection between said armature and said movable blade, said driving connection being` independent of said tension means.

15. A device of the character described comprising a' support, a reciprocable i blade mounted on said support, means for reciprocating said blade comprising an electromagnet, andan armature adapted to be vibrated thereby, and means for adjusting said armature relative to said magnet. l 3.

16. A device of the lcharacter described comprising a casing ,a' blade mounted to reciprocate relative to said casing, means within said casing for reciprocating said A blade comprising an electromagnet-and an armature adapted to be vibrated thereby,

and means extending outside of the said casing for adjusting said armature relative to said magnet.

17. Inv a clipper the combination of an electro-magnetic coil, an varmature for lthe coil, and a spring for mounting the armature to permit it to move to a pcint short of contact with the pole piece of the coil thereby providing a movement limit.

,18. In a clipper the combination of anfelectro-magnetic coil, an' armature for the coil, a spring for carrying the armature and permitting it to move to a polnt short of contact with the pole piece of the coil and means for adjusting the spring. A

19. In a clipper the combination of an alternating current electro-magnetic c0101, an armature for the` coil,and a spring for carrying the armature and permitting it` to move to a point short of contact with the pole piece of the coil and for moving it to a point away from the pole piece of the coil during the intervals between the I periods of attraction.

20. In a clipper the combination of an alternating current electro-magnetic coil, an armature for the coil, and a spring for carrying the armature and permitting 1t to move to a point short of contact with the pole piece of the coil and for moving it to a point away from the pole `piece of the coil duringthe intervals between the periods of attraction, 'and means for adjusting the spring.

21. In a clipper a combination of a handle carrying a stationary serrated clipper blade, a movable serrated clipper blade cooperating therewith, an electro-magnetlcl coil mounted in the handle, an armature for the coil and for moving the movable clipper blade, and a spring for mounting the armature and aiordmg movement ll)ilmits for its travel approximately equal to the"spacing ofthe serrations of the ades. 9-

22. Ina clipper the combination ofa case, a stationary blade carried-thereby,

a'movable blade cooperatingwith the stationary blade, an armature for operating the movable blade, an electro-magnetic device for moving the armature, a mounting for the armature, and means .for applying pressure to the'armature to hold the blades inoperative relation, said means acting adjacent the mounting for the armature. n l

[Oficial Gazette September 13,'19271]

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