US3229367A

US3229367A - Razor with relative blade and guard adjustment with protecting means for one edge ofa double-edged blade

Info

Publication number: US3229367A
Application number: US333052A
Authority: US
Inventors: Carl John Philip Harold Victor
Original assignee: Individual
Current assignee: Individual
Priority date: 1963-12-24
Filing date: 1963-12-24
Publication date: 1966-01-18
Anticipated expiration: 1983-01-18

Description

1966 J. P. H. v. c. LEWIS 3,229,367

RAZOR WITH RELATIVE BLADE AND GUARD ADJUSTMENT WITH PROTECTING MEANS FOR ONE EDGE OF A DOUBLE-EDGED BLADE Filed Dec. 24, 1965 -/7 JI E' 14 F a Inventor 40 H! (4p HMZCl-b \l/gmnp CHRL. Lgw s j M Attorneys United States Patent 3,229,367 RAZOR WITH RELATIVE BLADE AND GUARD ADJUSTMENT WITH PROTECTING MEANS FOR ONE EDGE OF A DOUBLE-EDGED BLADE John Philip Harold Victor Carl Lewis, Woodside, 43 Weald Road, Sevenoaks, Kent, England Filed Dec. 24, 1963, Ser. No. 333,052 2 Claims. (Cl. 30-69) This invention relates to razor blade holders and particularly to holders of the type designed to hold doubleedged razor blades.

The object of the invention is to provide a holder for razor blades that can be charged from a dispenser, that will enable the user to cleanse the assembly by washing without risk of the blade becoming dislodged from the holder, that will prevent the user using the second edge of the blade by accident, and that will enable the user to bring the second edge into use when he desired without removing the blade from the holder.

Accordingly the present invention provides a holder for a double-edged razor blade consisting of a platform on which the blade is located, a cover for the blade and a handle, in which means are provided on the platform for retaining the blade in position.

The present invention also provides a holder for a double-edged razor blade consisting of a platform on which the blade is located, a cover for the blade and a handle, in which means are provided on the platform for retaining the blade in position and in which the cover for the blade, when the assembly is adjusted for shaving, exposes only one edge of the blade.

The present invention also provides a holder for a doubleedged razor blade consisting of a platform on which the blade is located, a cover for the blade and a handle in which means are provided for moving the cover onto the blade and pressing the blade against parts of the platform to place the edge of the blade in shaving position and for releasing the parts from this position into an open condition in which the razor can be cleaned, and other means are provided for connecting the cover to the assembly.

The invention also provides means whereby the angle of exposure of the blade in the holder referred to above can be adjusted, and means which enable the cover to be readily reconnected to the assembly if it is-removed to enable a new blade to be inserted in the holder or the second side of a blade to be uncovered.

These and other features of the invention will now be described with reference to the accompanying drawings of which FIGURE 1 shows a sectional view of one form of the razor holder according to the invention, FIGURE 2 shows a front view of the cover, FIGURE 3 shows a plan view of the guard platform and handle, FIGURE 4 shows an end view of the cover, FIGURE 5 shows one means of adjusting the angle of the blade, FIGURE 6 is. a sectional view of another form of holder according to the invention and FIGURE 7 is a detail of this form with an optional addition.

The razor blade holder shown in FIGURES 1 to 5 consists of a handle 11, a guard platform 12 and a cover 13, the blade 14 being placed between the cover and the platform. The cover 13 is asymmetrical about the centre line of the platform 12, its front part 19 being of the correct length to expose the edge of the blade 14 when the razor is assembled, and the back part 20 is wide enough to cover the other edge of the blade to prevent it being used. The cover can have side plates 21 to enable the cover to be grasped easily when necessary. The cover also has positioning pins 18 which enter holes 22 in the platform 12 to locate the cover and a central 3,222,367 Patented Jan. 18, 1966 stem 15 which is threaded at its upper end 16 and termimates in a bulbous end 17. The cover also has recesses on either side to accommodate the stud 23 referred to later.

The guard platform 12 has in addition to holes 22 for the positioning pins 18, a stud 23 which is undercut as shown at 33, a central hole 24 through which the handle is connected, ridges 31 for locating the blade and a number of slots 32 for the escape of lather.

The handle 11 is conected to the platform 12 by having its end passed through the holes 24 in the platform and spun over as shown at 25. The handle is threaded internally at its upper end as shown at 26 to engage the thread 16 on the central stem 15 and carries a pair of leaf springs 27 in the recess in the handle which can retain the central stem 15. The handle can rotate relative to the guard platform 12. If desired, the relative positions of the handle and platform can be made adjustable by threading the outer surface of the upper end of the handle and fitting an internally threaded sleeve 28 over this threaded portion. This enables the platform 12 to be raised and lowered slightly relative to the handle and if the relative positions of the cover and handle are fixed, for example by arranging that the thread 16 terminates at the correct place, the sleeve 28 can be used to adjust the shaving angle of the blade. A pointer 29 can be provided on the handle 11 and a scale 30 on the sleeve 28 to enable the user to check the shaving position.

The positioning pins 18 could be provided on the guard platform 12 and the holes 22 in the cover 13, the spigots being undercut as at 33 to hold the blade on the platform.

In use the blade is discharged from the dispenser over the stud 23 (or the positioning pins 18 if these are provided on the platform instead of the stud) and slid along until the blade is held by the undercuts 33 and is correctly positioned by the ridges 31 fitting the slots in the blade. The cover 13 is applied to the top of the handle and the central stem 15 is pressed into the recess until it is gripped by the springs 27. The handle is now turned and the

threads

16 and 26 engage to lower the cover into the position for shaving. One edge of the blade is exposed from the end 19 of the cover 13 but the other edge is covered by the end 20. When shaving is completed, the handle is unscrewed so that the cover is lifted from the blade but is retained on the handle by the central stem 15 and the springs 27. The razor can now be washed, for example by being placed in running water, and when it is clean the handle is screwed back onto the cover and the razor is ready for further use.

When the first edge has been used as much as possible, the razor is unscrewed into the washing position and the cover is then pulled off. The blade is still held on the guard platform by the stud 23 and the ridges 31. The cover is turned round and re-applied to the razor, but now the end 19 would uncover the second edge of the blade and the used edge would be covered by the end 20.

The undercuts 33 should be deep enough to allow the lade to be flexed into its correct shaving position when the cover is screwed into the working position.

If adjustment of the shaving angle is required, the sleeve 28 is provided and this is turned until the required adjustment is obtained. The position of the pointer indicates the degree of adjustment so that the user can set the razor as desired.

With the arrangement described above, it is necessary to handle the cover 13 when the razor is set to the washing position, and the cover might be accidentally removed. The arrangement according to the invention shown in FIGURES 6 and 7 remove this disadvantage.

In this embodiment the central stem 15 is not threaded, nor is the upper end of the handle. The springs 27 are replaced by a pair of springs 45 which are carried by a spindle 37 which passes through the centre of the handle 11. The lower part of the spindle 37 is threaded as shown and moves in a threaded bushing which is fixed to the end 35 of the handle 11 and is rotatably fixed in the upper part of the handle. When the central stem 15 is engaged by the springs 45, the cover 13 is moved up and down as the end 35 of the handle 11 is turned relative to the rest of the handle and the cover can thus be moved from the shaving position into the washing position without being touched by hand. If adjustment of the shaving angle of the blade is required, this can be arranged by screwing a stud 39 into the end of the part 35 of the handle which touches the end 41'of the central spindle 37 and so limits the movement of the spindle and the movement of the cover 13 relative to the platform 12. A calibrated knob 40 allows the degree of adjustment to be checked as before described for the pointer 29 and the scale 30.

The inner wall of the upper part of the handle is arranged so that when the springs 45 are in the upper position the ends of the springs can move into the recess 43 whilst in all other positions the springs are prevented from opening by the walls 42. The central stem can therefore only be inserted in the handle and removed from it when the razor is in the washing position. If the end 35 of the handle 11 is turned whilst the cover is off and an attempt be made for the probe to be pressed onto the springs, the springs 45 might be damaged. To minimise this risk, additional springs 38 (one of which is shown in FIGURE 7) may be provided at right angles to the springs 45. In the figure the two halves of the section shown are normally at right angles to each other. These springs 38 are slightly longer than the springs 45 and are sprung in the opposite direction so that when the razor is in the washing position the springs 38 spring into the recess 43 and hold the central spindle in this position. The tension in the springs is sufiicient to hold the spindle against accidental movement but they slip back into the recess in the central stem 15 when the central spindle is deliberately screwed down. A platform 36 on the spindle 37 limits the upward movement of the spring assembly by meeting the stop 44. The springs 38 click into their open positions in the recess 43 and give a signal to the user that the razor is in the washing position.

The invention is not restricted to the embodiments described above.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a razor having a hollow handle with one end thereof open, a symmetrical elongated platform having a central opening coinciding with the opening in said handle and secured to said handle at said open end, said platform having medially positioned openings on opposite sides of said central opening, said hollow handle having a spring fastening secured therein, an unsymmetrical cover cooperating with said platform for securing a double-edged blade therebetween, said cover having a central stem and two medial pins extending outwardly from the bottom side thereof and received in said central and medial openings, respectively, of said platform, said central stem having a head thereon which is clampingly received by said spring fastening in said handle, for securing the cover in operative position, said unsymmetrical cover having an operative shaving side and a blade cuttingedge protecting side whereby when one edge of the blade becomes dull said cover can be rotated to use the second razor blade edge and wherein one edge of the doubleedged blade is protected at all times, said hollow handle having a threaded longitudinally movable shaft mounted therein, means for moving said shaft, said spring fastening having one end thereof secured to the upper end of said shaft and movable with said shaft to draw said cover toward said platform and into operative position.

2. The invention as set forth in claim 1, wherein stops are positioned within the handle adjacent each end of said threaded shaft for limiting the longitudinal movement of said shaft in either direction, and one of said stops being longitudinally adjustable.

References Cited by the Examiner UNITED STATES PATENTS 1,879,900 9/1932. Hofmann 30-60 2,144,041 1/1939 Arey 30-34 2,363,040 11/ 1944 Barthalot 30-41 2,388,722 11/1945 Clein 30-69 2,537,528 l/1951 Hellman 30-70 2,828,540 4/1958 Harrah 30-66 2,848,807 8/ 1958 Shnitzler et al. 30-605 3,052,979 9/1962 Grassau 30-67 FOREIGN PATENTS 1,107,441 8/1955 France. 1,224,591 2/1960 France. 1,325,812 3/1963 France.

312,659 6/1919 Germany.

596,696 5/ 1934 Germany.

155,450 12/1920 Great Britain.

495,123 11/ 1938 Great Britain.

WILLIAM FELDMAN, Primary Examiner.

MYRON C. KRUSE, Examiner.