Patent GB-190909974-A (GB)
Title: Improvements in and relating to the Stropping of Razors and the like.
Inventor: TAYLOR ROBERT
IPC: B24D15/10
Filed: 1909-04-27
Granted: 1910-04-27
Abstract: 9974. Taylor, R. April 27. Stropping - apparatus. - The edge of the razor blade is stropped between a strop-surface and a stropping-roller, the stropping- roller coacting with one side of the blade edge and being rotated by the contact of its surface with the strop-surface coacting with the other side of the blade edge upon relative motion of the blade and the strop surface. The device may be constructed as an attachment for safety razors, the razors being modified so as to serve for shaving or stropping, or as a separate piece of apparatus in which the blade is inserted. Various modifications are described. Fig. 1 shows a safety razor with a stropping-roller h attached, the blade c being held in an adjustable clip g for stropping and loosely supported by the extension d<1> of a clip d hinged to the razor frame at one side and secured by a catch e at the other. The clip d carries an alinement roller f to ensure smooth strokes during stropping, and serves to hold the blade securely against the holder q of the razor for shaving. In the arrangement shown in Fig. 5, the blade c is securely held by the hinged clip d against a frame b, which is pivoted at j and held to the razor frame b<1> by a screw b<111>. The blade may be adjusted to a loose position as shown, for stropping, or to a fixed shaving position, by an adjusting-screw. In the arrangement shown in Fig. 7, the blade-carrier b is hinged to the razor frame and may assume the position shown for stropping one edge, or, by the engagement of the clip 1 with the hook 2, or by screwing-down the screw z, the blade is put into the shaving position for the other edge. This modification may be adapted for shaving with both blade edges and stropping on one. In the arrangement shown in Fig. 12, a strop-roller 3 takes the place of the strop-surface, the blade being stropped by rotation of the roller 3. The strop-roller h described with relation to the above modifications may be attached to a tubular sleeve which is slipped over the handle of a safety razor when it is desired to strop the blade. Fig. 2 shows the device as applied to an ordinary razor c which is inserted in the clip d<1>, the roller h being adjustable to the edge of the blade. In Fig. 11 the blade c is inserted in a holder d pivoted at o<1> and carrying a rack segment b<2> engaging a pinion f on the alinement roller f. The device is reciprocated up and down a strop, and upon the device moving in the non- stropping direction, it swings about the roller f, and the blade edge is lifted off the strop. The single strop-roller may be pivoted about the blade centre so as to execute a semicircle and act as a strop-roller for both edges of a double-edged blade ; or it may also be used as a hanging stropper by enlarging the roller x<1> and passing the strop round the roller x<1> and through an extended loop of the spring x. Means may be provided for preventing reverse rotation of the stropping-roller, and a reciprocation of the razor edge during stropping may be produced by the engagement of a pin on the blade-holder with a cam-groove in the stroproller. The strop-roller may be constructed of stropping sections with intermediate washers, or may have a spiral stropping-surface ; or the camgroove razor guard described in Specification 18,599/07, [Class 30, Cutlery], may be rubber clad and serve as a strop-roller. The strop may have a canvas or like backing l, Fig. 1, faced with leather n, with an intermediate packing m of felt, woollen, or like material.