US3358367A - Haircutting device - Google Patents

Description

Dec. 19, 1967 5 c, BARTLEY I 3,358,357

HAIRCUTTING DEVICE Filed March 11, 1966 AAAAA AAAA I l o o VVVVVVVVVT FIG.3.

9' INVENT OR F l G 6 Samuel C. Burtley Patented Dec. 19, 1967 FIG. 6 is a cross-sectional view illustrating the assem- 3,358,367 bly of the haircutting device. gf g Si gE {g 22016 Bladeholder 1 is manipulated by engaging fingers with Filed M 11, f sen i 5'41385 protrusions 2 and 3 and a blade 23 is picked up by the 1 C1 i i 39 30 5 magnetism 4 in the bladeholder. Prongs 5 and 6 automatically, and sometimes by manual guidance, become engaged in corresponding slots in a standard blade. For

the narrow, single-edge blade, insets 7 and 8 of the modi- ABSTRACT OF THE DISCLOSURE fied bladeholder of FIG. 3 may contain one or more Haircutting device using safety razor blades, the blade- 10 bl d holder having q e Surfaces at pp non-Cutting The device is prepared for blade insertion by loosening edges to fit under reverse oblique surfaces fixed on a comb h b t 9, Th i comb glider segment 10 is moved h Said fa When interacting from hand justaway from its handle segment 11. The bladeholder with ment Produce a Sliding shear relation controlled y an blade are positioned on the flat comb glider surface 12. adjustment screw running longitudinally through the comb Then by tightening thumb nut 9 upon the handle extruhead permitting bladeholder to reciprocate with the deign d 13, th oblique rf 14 a d 15 of the bladesired friction in directions parallel to said oblique surfaces h m engage th reverse oblique surfaces 16 and 17, and t0 cut hair at VaIi S lengthsand the adjustment of thumb nut 9 determines the friction between surfaces 14, 15, 16, and 17. Protrusions 2 and 20 3 are now also locked in slots 18 and 19, and the edges This invention is a haircutting device, using safety razor of eladeholder and blade eaenot be moved, beyeed the blades and the like, incorporating means for using Very cutting edges of the comb glider. In the reciprocation of thin blades; also, a preparatory positioning and holding the bladeholder and blade, prongs 5 and 6 W111 travel in means for the blade; a reliable safety locking device; and grooves 21 and a direct thumboperated blade adjustment to Cut hail. to 25 Bladeholder 1 is now ready for reciprocation between various lengths cutting edges of the comb glider. And now with handle These are present in a novel Structure of oblique ends 20 the entire device can be moved upon the hair surface of a bladeholder are secured Within Opposing Oblique for cuttmg tharr at various lengths and from two or more surfaces integral with a comb glider and :handle, the comb P P prlwlded a do'ubleedge blade or by dual or glider being segmented some-where between these sur- Smgle lesemon of Smgle'edge blades faces for assembly and adjustment. A protrusion from I Clalmi each of the oblique edges of the bladeholder intersects In a halreuttmg devlcea a bladeholder conformmg m the shear of each end and locks itself within slots in the shape generally to the penmeter of Safety razor blade opposing oblique surfaces. Magnetic means attractive to two pposite edges of said bladeholder being oblique a blade are incorporated in the bladeholder. When these Surfaces which m operatlon. are under PrresPmdmg elements are assembled and adjusted, a blade is held in verse Obhque and P W Surfaces fiXed relation solid contact with a plane surface of the comb glider and to plaee Surface e between e obhque the blade is locked within a safety zone of operation. A faces 'bemg compelled by adlustments holdmg the blade telescopic adjustment of the segmented comb glider con- 40 q and blade Ugh/[1y plafle Surface and trols the friction exerted on a slidable bladeholder. Imetmg them to reelproeate m dlrectlens Parallel to the The reciprocating movements of the bladeholder can oblique surfaces, each of the upper oblique surfaces having a slot cut downward and partially through said upper be made by the .extended th mb of the operator obvlaimg oblique surfaces, the length of the slots being equivalent the manufactunng cost of a more complex mechanism.

to the travel distance of the bladeholder in reciprocation, A thlll and fllmsy Fhmme blade firmly the ends of said slots being stops for the movements of and safely against a flat cutting surface and is prevented from fiexino when in cutting Contact with hair the bladeholder, said bladeholder having projections from Th d t f d fi f t the oblique surfaces of its bearing edges to reciprocate em 18 a 9. an a van age 0 6 111.6 53 e m Prepar within said slots to restrict the movements of the blademg and Operaung the blade The lockmg devlce presents holder to the area of the bladeholder support urface and safety of definite reliability. Magnetic means in the bladelock The bladeholder Within th 51 Ots holder adds to this safety as well as providing ease in preparing the blade for cutting; picking it up, holding it in place on the bladeholder, and carrying it to cutting posi- References Cited tions automatically as the bladeholder is inserted in the UNITED STATES PATENTS se mented comb supportin structure. 55

TFIG. 1 is a plan view of the haircutting device. 1,299,098 4/1919 Ames 3074 FIG. 2, is an underside view of the bladeholder with 2,462,519 2/1949 Mansfield 30 30 doub1e edge blade attached 2,536,261 4/ 1953 Shaeffel 30-30 FIG. 3 is an underside view of a modification of the 295355 10/1960 Tomv'an 30-40 bladeholder for use of single-edge blades.

FIG. 4 is a cross-sectional view through 4-4 of FIG. 1. OTHELL SIMPSON "nary Exammer FIG. 5 is a cross-sectional view through 55 of FIG. 4. J. C. PETERS, Assistqnl Examiner.

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