US988285A - Machine for sharpening razor-blades. - Google Patents

Description

E. I. BAINS. iMACHINE POR SHARPBNING RAZOR BLADES.

APPLICATION FILED MAYL, 1910.

988,285.' Patented Mar.28,1911.

2` SHEETS-SHEET l,

E. 1'. BAINS. MACHINE PQR SHARPBNING RAZOR BLADES.

APPLICATION FILED MAY 4, v1910.

4 Patented Mar. 28,1911.

2 SHEETS-SHEET 2.

(85 'ift/mense@ t 257W WW are secured to the head 72. In Figs. l and 2 the head b is shown as having a flat npper surface so that the blade is held flat. 'It may have, however, any other suitable form, such as a concave form, as in the head b2 shown in Fig. 3. A

In the machine shown in Figs. l and 2 the sharpening rolls are mounted in fixed bearings in the frame c. It may be desirable in some bases to. provide for adjustment of the .sharpening rolls toward 'and from each other. =A construction which permits. such adjustment is shown in'Figs. and 5, in

which the shafts g, g', are mounted in journal boxes e3 which are movable toward and .and `from each other by a right and left threaded screw shaft le, provided with a milled turning disk 7c', and may be held in proper position in the frame e2 by adjusting screws czpthreaded in the ends of the frame.

notwithstanding their adjustment toward and from each other, each gear g3 and g4, indicated only by the pitch lines in Fig.l 4,

` meshes with a corresponding gear gf and g, each of the gears g5 and g being carried by a stud 97,. g8, projecting from a bar gn, glo, hung at its upper end upon the corresponding shaft g, g. The two bars are slotted at their lower ends, as at g, and, being overlapped, are connected bya clamping screw 912. The two gears gl5 and g6 are held in mesh with each other, notwithstanding adjustment toward and from each other of the gears g3 and g* with which they are respectively. in mesh lthrough relative' adjustment of the lower ends of the bars g and glo, the clamping screw 91.2 bein loosened for the purpose and then set up tightly.

The machine shown in Fig. 5 is adapted for sharpening of a blade having but one edge, sucli as an ordinary razor blade indicated at z". The head b is suitably formed to support the blade and the gear through which the roll f is otherwise drive'n from the roll f is'dispensed with.

If it be desired to give the sharpening rolls a longitudinal movement as well as a rotary movement, the iframe es is somewhat-elongated, as shown in Fig. 7, andthe shafts g andv g mounted therein are provided each with a spline g* which engages a longitudinal groove f* formed in the -sleeve lining j" of the corresponding roll f or f as the case may be, and the roll has secured thereto at one end a hub f5 with an inclined groove f@ engaged by a pin e on the frame e5. lnTherel'o're, as the sharpening rolls are rotated they receive at the-same time a longitudinal reciprocating movement.

in Figs. 6-9, has its edges cut away somewhat so as to leave4 the edges of the blade free, as clearly shown in Figs. 6-8, and the blade z', if it is provided with holes, as is sometimes the case, may be secured to the head b2 by screws Vor pins b3 which pass through the holes in the blade into the head.

kA desirable form of sharpening roll is shown in Figs. 10 and 11, in which the body j" of the roll is formed with spirally disposed, dove-tailed rooves f8 in which are placedstrips f" of4 material.

If it is thought necessary -to fasten the hinged frame e down upon the frame a a `spring latch a2 may be secured to the frame a and' adapted to engage a hooked 'stud a3 `o n the frame e.

details of construction and arrangement without departing from the spirit of the invention, which is noty limited to the precise construction and arrangement shown;

' I' claim as my invention:

and the like, comprising a sharpenlng roll, `means to rotate the same, a sprin pressed blade support adapted to press t e blade yieldingly toward the roll, and movable "bodily toward and from the roll, and guides in which said support is loosely guided.l

2. A machine for sharpening two-edged safety razor blades, comprising a, pair of sharpening rolls geared to rotate together, means to rotate the rolls, a s ring-pressed surface substantially parallel with the plane the blade yieldingly toward the rolls with its edges in contact therewith respectively, said support being movable bodily toward and from the rolls ,andV guides in which said support is loosely guided.

. 3. A machine for sharpening razor blades port mounted loosely and yieldingly in the base, a frame mounted 'movably on the base mounted in the frame and means for rotating the sharpening roll, said support being movable bodily toward and from the roll.

4. A machine for sharpening razor blades and the like, comprising a base, a blade'support mounted loosely and yieldingly in the base, a frame mounted movably on the Vbase above the blade support, and a pair of sharpening rolls mounted in the frame and geared to rotate together, said support being movable bodily toward and from the rolls with `its suppdrting surface substantially parallel with the plane oi the axes of the rolls.

5. A machine for sharpening razor biades eather or other suitabley Various other changes may be made in l. A machine for sharpening razor blades blade support having its bla e-supporting' and the like, comprising a base, a blade sup The head b2 of the blade supporter, shown of thev axes of the rolls'aid adapted to press A above lthe blade support, a .sha-rpening'roll and the like, comprising a blade support and sha-ft, a hub secured to the roll and having shanpening roll mounted to rotate and to an inclined groove, and a stud mounted 0n have longitudinal movement, means to rothe frame and entering said groove. tate theroll, and means to cause the Vroll to This specification signed and witnessed 5 reciprocate longitudinally as it rotates. this 3d day 'of May, A. D., 1910.

6. A machine for sharpening razor blades FLEAZER I RAINS and the like, comprising a blade support, a J

frame, a shaft mounted for rotation in the Signed in the presence of- K frame, a sharpening roll mounted to rotate W. B. GREELEY, 10 with and to move longitudinally upon the AMBROSE L. OSHEA.4

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