US1802511A - Safety-razor-blade-sharpening device - Google Patents

Description

April 28, 1931. J HQLTZMAN 1,802,511

SAFETY RAZOR BLADE SHARPENING DEVICE Filed March 19 1925 Patented Apr. 28, 1931 PATENT ()FFICE JOHN HOLTZIYIAN, OF NEW.YO RK, N. Y,

SAFETY-RAZOR-BLADESHARPENING DEVIGE Application filed March 19, 1925. SerialNo. 16,700.

This invention relates to devices for sharpening razors by stropping their cutting edges and has as one of its objects to provide a casing adapted to contain the several parts of any of the ordinary types of safety razors and having combined therein revolving strops operable on both sides of each edge simultaneously.

It is a further object to provide means for rotating the several stropping rolls coincidently, the action of the rolls being such as to produce a shearing efiect as they are rotated.

Another object is to produce a relatively thin, neat appearing casing susceptible of be ing carried in one of the pockets of ordinary clothing.

A still further feature is in the provision of novel and practical stropping rolls, ar- 20 ranged in pairs, and having interengaging elements which are held in positive relation, irrespective of the casing being opened or one pair of rolls raised from engagement with the other pair.

Other objects will become obvious as the description proceeds and are attained by the novel construction and combination of parts hereinafter described and shown in the accompanying drawings, forming part'hereof, and in which Figure 1 is a top plan view of one type of casing, the cover being in an open position to disclose the arrangement of parts in the body of the casing.

Figure 2 is a transverse sectional view taken on line 22 of Figure 1., showing one pair of the strop rolls raised vertically from the casing.

Figure 3 is a transverse sectional v1ew of the same, showing the cover closed, the section being taken substantially on line 33 of Figure 1.

Figure 4 is a fragmentary transverse sectional view taken on line 44 of Figure 1.

Figure 5 is a sectional view taken substantially on line 5-5 of Figure 3.

Figure 6 is a front elevational view of the casing as closed.

In the drawings, Figures 1 to 6 inclusive show a rectangular box-like container generally designated by the numeral 25, the same having upstanding end and side walls, to one of the latter of which is connected a cover 26 by a longitudinal hinge 27, the cover having ends and sides similar to those of the body portion, and means are provided to retain the cover on the body, as by the swin ing arm 28 engageable with the hook catch 29.

In the front part of the container body are a pair of raisedsupport-s 30 adapted to receive the handle or stem portion A of a safety razor, its guard B being disposed on pins 31 extending up from a plate 32 constituting the cover of a compartment 33 which may be used to contain dull blades, freshly sharp ened blades being contained in a box 34 disposed in the container adjacent a longitudinal partition 35 at one end of the container.

In the opposite end is a rectangular frame 36 fixed on the inner surface of the container body, and rotatably mounted therein are transverse, parallel spindles 37 and 38, the latter extending outwardly through the front side walls of the container and having pivoted engagement with a foldable handle 39 by which motion may be transmitted.

Fixed on the rear ends of the spindles are gears 40 and 41, and meshing therebetween are idle pinions 42, rotatable on studs reaching in from the rear wall of the frame to communicate motion.

' Mounted rigidly on the spindles are tubes 43 and 44 containing coarsely pitched, square screw threads 45 and secured in the spirals so formed arestrips46 of leather or like material adapted to be coated with a fine abrasive, as rouge, emery or carborundum, these strips being held inplace by cement, to extend uniformly above the surfaceof the tubes and constituting abrasive rolls.

If preferred, the gears 40 and 41 may be secured on the ends of the tubes, rather than on the spindles direct the consequent action being the same.

A similar but opposite frame 48 carrying spindles 49 and 50, is held by pivots 51 to the frame 36 and mounted on the spindles are rolls 52 and 53 oft-he same construction these rolls being driven by gears 54 and. 55.

fixed thereto these gears being engaged by the gears 40 and 41 of the other pair of rolls.

As shown in Figure 2, the frame 48, with the rolls and gears carried thereby may be raised at a right angle without disengaging the gears, the teeth intermeshing in both posi tions due to the pivots 51 being in the plane of the axis of angular rotation of the gears.

It is further to be noted that the elements 4.6 of each pair of rolls are arranged to coin cide with the spaces between corresponding elements in the adjacent roll, therefore intermeshing with the same when in operation.

The double edged blade C of the razor, while undergoing stropping is disposed .on a flatsupport bar 56 extending lengthwise of the lower frame, centrally between the lower pair of rolls, and are held in position by pins 57. 1

In order to cause the cover to automati cally rise immediately it is released from the catch 29, a spring 58 encircles one of the hinge pins 51, the extending bent ends 59 and 59 being seated respectively against the cover 26 and body 25, as best shown in Figure 5.

A pair of springs 60, carried by one of the forward longitudinal partitions, have at their outer, free ends eyes 61 in which is mounted a roller 62, acting to raise the cover prior to the separation of the outer rolls, thus preventing possible injury to them, by any sliding motion of the cover.

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

1. A safety razor blade stropping device comprising a substantially flat casing having a hinged cover and containing compartments for the razor parts, a frame fixed in said casing, a complementary frame hinged thereto, each of said frames carrying abrading rolls, gears on each roll, the gears on rolls of the hinged frame being in mesh with the gears on the rolls in the fixed frame irrespective of the position the rolls and frames may assume, and means for rotating all of said rolls.

2. A safety razor stropping device comprising a casing divided into a plurality of compartments for receiving the individual parts of a safety razor, a separable frame fixed in the casing, said compartments and frame being assembled to substantially fill the interior'of said casing, a complementary frame hinged to the fixed frame, abrading rollers carried by each of the frames, gears on each roller, the gears of the rollers of the hinged frame being in mesh with the gears of the rollers of the fixed frame, a fiat blade supporting bar extending lengthwise of the fixed frame and between its rollers, means for rotating all ofsaid rollers and a cover hinged to said casing. I

In testimony whereof I have signed my name to this specification.

JOHN HOLTZMAN.

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