Slant Razor
Patent GB298877
Invention Improvements in or relating to Safety Razors
Filed Monday, 7th May 1928
Published Thursday, 18th October 1928
Inventor Ralph Sneyd Kynnersley
Language English
CPC Classification:B26B21/28
- B26B21/28
Safety razors with one or more blades arranged transversely to the handle of the drawing cut type, i.e. with the cutting edge of the blade arranged obliquely or curved to the handle - B
Performing Operations; Transporting - B26
Hand Cutting Tools; Cutting; Severing - B26B
Hand-Held Cutting Tools Not Otherwise Provided For - B26B21/00
Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor - B26B21/08
Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades - B26B21/14
Safety razors with one or more blades arranged transversely to the handle
For a full resolution version of the images click here
A PDF version of the original patent can be found here.
Parts not referenced in the text: None
Parts not referenced in the images: None
I, Thomas Ralph Sneyd Kynnersley, M.I.C.E., British subject, of Fairmeadow, Mayfield, Sussex, do hereby declare the nature of this invention to be as follows:—
This invention relates to safety razors of the general type in which the edge of the guard is at an angle to the edge of the blade with the intention of obtaining an oblique cutting action.
The object of the invention is the construction of a simple and efficient razor in which this action is obtained naturally when the razor is used.
In razors of the type referred to it is generally necessary that some case should be exercised in holding the razor in order to get the oblique cut, but in the improved construction this difficulty is avoided and the desired angular position of the cutting edge obtained when the pull is applied in the obviously normal way, i.e., in the direction of the length of the handle.
A safety razor according to this invention has the edge of its guard at right angles to the axis of the handle but its cutting edge inclined relatively to the guard edge.
The invention is more particularly concerned with safety razors of the well known type in which a thin blade with two cutting edges is clamped between a guard plate or table and a clamping plate, and the following description of an improved razor of that kind is given by way of example.
The guard plate or table is made with two slots parallel to each other and disposed so that when the blade is clamped down upon the plate its cutting edges are parallel with the slots and positioned relatively thereto so that soap and hair may pass through the slots. The blade-supporting portion of the guard plate, instead of being at right angles to the axis of the handle as is usually the case, is inclined thereto, but the guard edges are not parallel with the slots but are at right angles to the axis of the handle.
Thus, in use when the guard edge rests on the face the natural movement of pulling the handle in the direction of its length must result in the desired oblique cutting action.
The parts may be assembled in the well-known way by the clamping plate having pins, which pass through holes in the blade and in the guard plate and also having a central screwed stud which, after passing through holes in the blade and the guard plate engages with a tapped hole in the end of the handle. This screwed stud is angled relatively to the clamping plate so that when assembled the edges of the clamping plate, the cutting edges of the blade and the slots in the guard plate are oblique in relation to the axis of the handle, whilst the edges of the guard plate are normal to that axis.
Seen in plan the lines of the guard edges converge and it follows from the construction above described that it is necessary when assembling the parts that the clamping plate and guard plate shall be placed in their proper relative positions, that is to say the clamping plate is not reversible with regard to the guard plate. To ensure that these two members can be readily placed in the proper relationship some mark may be placed on the underside of the guard plate adjacent to one of the pin holes and a corresponding mark made on the pin which should enter that hole.
The guard plate may be provided with small projections or raised portions adjacent to the corners of the blade to prevent any risk of such corners scratching or cutting the face, or the shape of the guard plate itself may prevent or minimise such risk. There may be a slight step or depression in the surface of the guard plate adjacent to the cutting edge, the surface then falling away to the guard edge which, as previously mentioned, lies in a plane at right angles to the axis of the handle.
It is to be understood that the invention is not necessarily restricted to the particular construction of parts given in the above example.
Dated this 7th day of May, 1928.
KILBURN & STRODE,
Agents for the Applicant.
I, Thomas Ralph Sneyd Kynnersley, M.I.C.E., British subject of Fairmeadow, Mayfield, Sussex, do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement:—
This invention relates to safety razors of the general type in which the edge of the guard is at an angle to the edge of the blade with the intention of obtaining an oblique cutting action, and particularly to safety razors of this general type in which the edge of the guard is at right angles to the axis of the handle so that the oblique cutting action is obtained when the razor is drawn over the face in the normal way.
A safety razor according to this invention has a guard plate or table to which the blade is clamped and this guard plate or table is so shaped and so inclined to the axis of the handle that the edge of the guard is at right angles to that axis and the cutting edge of the blade inclined relatively to the guard edge.
The invention is more particularly concerned with safety razors of the well known type in which a thin blade with two cutting edges is clamped between a guard plate or table and a clamping plate, and the following description of an improved razor of that kind is given by way of example.
The guard plate or table is made with two slots parallel to each other and disposed so that when the blade is clamped down upon the plate its cutting edges are parallel with the slots and positioned relatively thereto so that soap and hair may pass through the slots. The blade-supporting portion of the guard plate, instead of being at right angles to the axis of the handle as is usually the case, is inclined thereto, but the guard edges are not parallel with the slots but are at right angles to the axis of the handle.
Thus, in use when the guard edge rests on the face the natural movement of pulling the handle in the direction of its length must result in the desired oblique cutting action.
The invention may be carried out in various ways but it is shown as applied to the known flexible double-edged blade type of razor in the accompanying drawings, in which
The safety razor illustrated is of the well known type comprising a detachable handle
According to the present invention the guard plate is provided with two slots
The main portion of the guard plate
Adjacent to the corners on the slots
In assembling the parts the screwthreaded shank
The invention is equally applicable to razors of the kind in which a hollow cylindrical member, forming the main part of the handle, is integral with the guard plate and furnished with a removable internally screwthreaded portion adapted to engage a screwthreaded pin on the clamping plate.
It is however to be understood that the invention is not necessarily restricted to a razor of the particular type illustrated or even to a double-edged razor, although this arrangement is preferable, as with such a construction either cutting edge will give an oblique cut whichever way the razor is held as clearly illustrated in
Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:—
1. A safety razor having a guard plate or table to which a blade is clamped, in which the guard plate or table is so shaped and so inclined to the axis of the handle that the edge of the guard is at right angles to that axis and the cutting edge of the blade inclined relatively to the guard edge.
2. In a safety razor a guard plate inclined to the axis of the handle having parallel slots cooperating with the edges of a flexible blade, clamped to the guard plate, the guard edges or surfaces being inclined relatively to the slots and at right angles to the axis of the handle.
3. In a safety razor the combination with a handle, of a guard plate with slots parallel to each other and to the edges of the blade, such plate having its blade-supporting portion inclined relatively to the axis of the handle but its guard edges at right angles thereto.
4. The combination and arrangement of parts constituting the complete safety razor as described or as illustrated in the accompanying drawings.
Dated the 10th day of August, 1928.
KILBURN & STRODE,
Agents for the Applicant.