US2677886A - Safety razor - Google Patents

Description

C. F. HENLEY May II, 1954 SAFETY RAZOR 2 Sheets-Sheet 1 Filed Sept. 14, 1951 lNl/ENTOE F, f/en e,7

dV/as ATTOIQNEYJ May 11, 1954 c. F. HENLEY 2,677,886.

SAFETY RAZOR Filed Sept. 14, 1951 2 Sheets-Sheet 2 INVENTOE eh \r /e. 5 IT.

By He? k7 -J$4 4owa3 M ATTORNEYS Patented May 11, 1954 UNITED STATES PATENT OFFICE SAFETY RAZOR Charles F. Henley, London, England, assignor to Ever-Ready Razor Products Limited, London, England, a British company Application September 14, 1951, Serial No. 246,559

Claims priority, application Great Britain September 18, 1950 1 Claim. (01. 30-70) 1 This invention relates to safety razors adapted whilst permitting of free rotation of said nut eleto hold centrally-slotted double-edge blades. The ment 6.

invention has particular reference to a safety The handle I is surmounted by a fixed head razor of the kind in which the blade is clamped i i consisting of a stepped channel member I down on to a guard by means of a sectional 5 anda susbtantially rectangular top plate l6 havclamping cover, the guard surmounting a haning its opposite longitudinal edge portions ll constituting a symmetrical guard of generally The object of this invention is to provide an known form and provided with comb-like teeth improved safety razor of this kind. or, as shown, with slots l8 parallel to the side The foregoing and other objects of the inven- 1Q edges of the guard. The T-shaped element I0 tion will be more readily understood from the forms part of a, blade clamp operating means, following description of a preferred embodiment other essential parts being the manually operawhich is illustrated, by way of example, in the ble nut G and the twin clamping members l9.

accompanying drawings, wherein: These clamping members 59 are of identical sym- Figure 1 is a side view, partly in section, of one metrical form so that any two members can be construction of razor according to this invenpaired for use together. Each clamping member tion, showing the blade clamping means closed, it is in the form of a metal plate bent or doubled Figure 2 is a plan view of Figure 1, over to approximately an L shape in cross see- Figure 3 is an end View, partly in section, the tion, that is, a short limb 2i! and a long limb section being taken on line III-III of Figure l, meeting at a generously-radiused junction Figure 4 is a cross section on line IV-IV of edge 22. The short limb 20 is provided with a Figure 1, pair of notches 23, symmetrical in relation to Figure 5 is a plan view showing the blade the length of the clamping member l9 and to clamping means open, a semi-circular opening 24 provided at the mid- Figure 6 is a cross section on line VI-VI of 25 dle of the clamping member H9 at the junction Figure 5, edge 22. The opening 24 breaks into a groove 25 Figure 7 is a pictorial view of one of the blade formed in the middle of the limb Bil in such a clamping members and the associated operating manner as to provide adjacent the rear face 25 element, and of said limb a pair of longitudinally spaced Figure 8 shows a typical narrow slotted blade ledges 27. The aligned grooves 25 of a pair of for use with the razor shown in Figures 1 to 7. clamping members 49 when disposed in back-to- The safety razor illustrated in Figures 1 to 7 back contact, as shown in Figure 3, provide a of the drawings is provided with twin clamping passage for the stem 28 of a pin 29 mounted in elements which are so thin that when arranged the upper end of the shank 9 of the T-shaped in the opened position they can pass through the 3 operating element ii, so as to constitute an axial narrow central slot provided in several brands extension of said shank 9. The pin 29 has a of double-edge blades at present marketed. The flat disc-like head 30 adapted to be accommodated razor comprises a tubular handle I having the in the aligned openings 24 of a pair of clamping customary knurled or roughened grip portion 2 members it, said head it co--acting with the two and a stepped bore consisting of a large diampairs of ledges 2? of the two members is. The

eter bore portion 3 and a co-axial small diamcross bar 3i of the T-shape operating element ill eter bore portion 4. has upturned lugs 32 which are each wide enough Within the bore portion 3 is snugly received, to engage one aligned pair of notches 23 in the with freedom to rotate, the barrel 5 of a nut back-to-back clamping member limbs 2d. It element 6, one end of the nut barrel 5 having a will be noted that the notches 23 are spaced from central drilled and tapped socket 7 for screwthe middle grooves 25 of the clamping members threaded engagement with the male threaded 9 at such equal distances therefrom that the end portion 8 of the shank 9 of a substantially lugs 32 of the operating element it can pass T-shaped element H). The outer end of the nut through cross openings 33 which intersect the element 6 is made in the form of a knurled or longitudinally contoured-edge central slot 3d of roughened finger gripping knob I i, a rim l2 on a double edge wafer blade 35. It will be noted said knob H being rolled in after assembly to that the blade 35 has a central opening at adaptenter an annular groove [3 in the grip 2 of the ed to airord clearance for the disc head as of handle I, thereby preventing withdrawal from the pin 29 of the operating element it and is the handle bore portion 3 of the nut element 6, also provided with paired set-back end portions 3? to engage angular location projections 38 formed at opposite ends of the top plate 16 of the razor head M. The parts of this razor which co-operate with the blade slot 34 and openings 53 and 36 are of such dimensions, disposition and form as to enable the razor to receive interchangeably any one of a number of blades intended for use with a variety of difierent existing razors.

The top plate It of the razor head M has a central longitudinal slot 39 with a central enlargement 49 and a pair of symmetrical enlargements 4| for the passage therethrough of the clamping members l9 and the pin 29 and lugs 32 of operating element It respectively, and the limbs 20 of the clamping members 19 have end projections 42 adapted to engage under the top plate l6 adjacent the ends of slot 39 to limit the bodily upward movement of the clamping members 19.

For the purpose of mounting a blade 35 on the razor the nut 6 is turned by means of the knob II to cause the screwed portion 8 of the shank 9 of the clamp operating element It) to screw into the socket l of said nut 6. This has the efiect of causing the disc-head 39 of the pin 2S of element Hi to bear down upon the ledges 2'! of the closed clamping members 19, with the result that the members i9 are rocked about the radiuscd edges 22 to bring the long limb-s 2i thereof substantially erect and face to face, 20 then extending outwards in opposite directions within the upper part oi the channel l5 of the head Id. The blade 35 can then be placed on the razor top plate H3 with the erected limbs 2! of the clamping members I9 extending up through the blade slot 34. Reverse rotation of the nut 9 then elevates the operating element is to cause the lugs 32 to tilt the clamping members 19 in th opposite direction, so as to clamp the blade 35 on to the top plate it by the long limbs of said member l9.

To allow for manufacturing tolerances in the various components of the razor and for slight inaccuracies in assembly the upper part 9A of the shank 9 of the operating element i9 is made separate from the lower part 913 and the two parts are hingedly connected by a cross pin 43, so that the clamping members l9 carried by said upper part 9A are self-adjusting in the act of clamping the blade in position.

the short limbs I claim:

A safety razor comprising a tubular handle; a head surmounting said handle and consisting of a channel member communicating with the handle interior and of a longitudinally slotted top plate having laterally extending portions forming a symmetrical guard; blade clamping means in the form of twin covers constituted by plates of L-shape in cross section with rounded edges at the junctions between long and short limbs of the L-sectioned cover plates, said cover plates being normally disposed in a blade clamping position with the long limbs of the cover plates extending outwards to overlie said guard and with the short limbs thereof back to back and symmetrical to the longitudinal axis of the handle and the head with its guard plate, said short limbs being fashioned to define therebetween a central passage, aligned notches on opposite sides of said central passage and projections extending from the ends of said limbs for engaging the under side of said top plate; and a blade clamp operating mechanism comprising a sleeve-like nut mounted for rotation within the handle interior and held against axial movement, with the lower end of said nut accessible for finger gripping, an axially displaceable push-pull member having a T-shaped head accommodated in the channel member of said head and having a screwed shank making threaded engagement with said nut, the arms of the T head terminating in uprights each for engaging said aligned notches in the short limbs of the cover plates to hold the cover plates in blade clamping positions and having an extension of said shank for passing through the central passage defined between said short limbs and shaped for engaging the upper sides of the cover plates.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,009,272 Muras July 23, 1935 2,020,501 Garretson Nov. 12, 1935 2,079,245 Dalkowitz Mar. 4, 1937 2,143,276 Martin Jan. 10, 1939 2,547,704 Hoberg Apr. 3, 1951

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