US1221263A - Sharpener for razor-blades. - Google Patents

Description

H. B. YOUNG.

SHARPENER FOR RAZOR BLADES.

APPLICATION FILED SEPT. I4, I915- 1,2213263. Patented Apr. 3, 1917.

4 SHEETS-SHEEI I Witnemwo H. B YOUNG.

SHARPENER FOR RAZOR BLADES.

APPLICATION FILED SEPT, I4, I9I5.

4 SHEETS-SHEET 2.

I I I Patented App. 3,1917.

Q Harry .B. Ybun y wih 1 0 mm I aawzm L (Hazing H. B. YOUNG. SHARPENER FOR RAZOR BLADES. I

APPLlC ATION rmzo SEPT. 14. 1915.

Patented Apr. 3,1917.

4 SHEETS-SHEET 3.

Witneooeo H. B. YOUNG.

SHARPE'NER FOR RAZOR BLADES.

Patented Apr. 3, 1917.

.m M 4 T Pl E s D E L Hr N 0 U A c U P DI A I 3 6 9w 1 w 1 '4 SHEETS-SHEET 4.

UNITED STATES PATENT OFFICE.

HARRY BENTON YOUNG, OF CINCINNATI, OHIO.

SHABPENER ron RAZORJBLADES.

Application filed September 14, 1915.

To all whom it may concern:

Be it known that I, HARRY BENTON Yonne, a citizen of the United States, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented new and useful Improvements in Sharpeners for Razor-Blades, of which the following is a specification.

| My invention relates to sharpeners for razor blades.

The object of my invention is to produce a sharpener for razor cessively hone, sharpen and plurality of blades, and to impart to each blade a diagonal or barbers edge. Another object thereof is to produce means for alternatelygrinding the opposite faces of razor blades; A further object thereof is to produce means for holding razor blades in posi tion to be alternately ground by a pair 0 parallel revolving drums and for conveying same from one end to .the opposite ends of the drums during the movement of the blades between the drums in alternating contact therewith, and a still further object of my invention is to produce a more, simple,

cheap and eliicient razor sharpening machine than has heretofore been attained.

To these ends and for others that will hereinafter be disclosed, my invention includes the combination and arrangement of component parts to be set forth herein, and more particularly pointed out in the claims.

In the accompanying drawings in which like reference characters indicate similar parts,

'Figure 1 is a front elevation;

Fig. 2 is a plan view with the blade conveyer broken away,

Fig. 3 is a vertical sectional on the line 33 of Fig. 1;

Fig. 4 is a similar view l4 of Fig. 1; i

Fig. 5 is a front view of my blade holder,

Fig. (3 is a side view of the same;

Fig. 7 is a perspective view of the head of my blade holder with the stem removed;

Fig. 8 is a cross-sectional view of the clamping jaws of my blade holder taken on the line 8-8 of Fig. 6;

Fig. 9 is a top plan view of my electric switch;

view taken taken on the line Specification of Letters Patent.

blades adapted to sucstrop one or a Patented Apr. 3, 1917.

Serial No. 50,621.

Fig. 10 is a detail perspective view of a modified form of my conveyer, and ,15 Fig. 11 is a similar view of another modification of the same.

Referring now to the drawings, 1 designates a rectangular base or platform upon which are erected the vertical frames 2 and 3 adjacent to the ends of the base, and on which are provided suitable mountings and bearings for the sharpening drums, driving gears and blade carrying mechanism hereinafter described.

Mounted between said frames in suitable bearings thereon, I provide two parallel drums 4 and 5 spaced a suitable distance apart to permit the razor-blade holders 6 to be suspended between same and to oscillate Each of said drums is covered with a layer of leather 7 or other suitable material, which as shown is spirally wound upon the surface in a continuous'strip,having a spiral groove between the contacting edges to receive the accumulation ,of grit resulting from the sharpening operation. The leather strips, thus described, are wound in opposite directions upon the adjacent drums, whereby a diagonal edge will be ground upon both faces of blades when alternately pressed upon the revolving faces of the drums, and said strips may be "provided with perforations C to expedite the sharpening operation.

Said drums are tor Mbelted with ried on the shaft of the drum 4. The pinion 8 is carried on the same shaft and meshes with the idle gear 9. Said idle gear meshes with the gear 10 diets of the drum journals, which meshes with the gear 11 carried onthe shaft of the drum 5, by which train the drums are revolved oppositely and toward each other. Said gears are arranged to revolve both drums 4 and 5 at the same rate of speed.

As shown in the drawing, one end of each of the drums is covered or filled with emery or other grinding substance at Gr, while the driven by the electric mo- ..le'zither covering next adjacent thereto on the wheel D rigidly car-- mounted interme ening surface, and the balance of the sun face of the drums is of plain leather to give the finishing or stropping treatment to the blades in their travel from one end of the drums to the opposite, as hereinafter described.

The conveyor bar 12 is journaled on the frames '2 and 3 above and between the drums l and 5, and is connected with the gear wheel 10 by the pitman 13 eccentrically attachcd thereto, by which the bar is rocked on its hearings to bring the razor blades into alternate contact with the drums when suspended thereon by the hangers 1 Adjacent to said conveyer, is provided a worm 15 adapted to contact with the hangers ll when suspended, and to advance the hangers and blade holders secured thereon by regular steps throughout the length of the drums. Said worm is loosely mounted in journal bearings at each end, and adja cent to one end thereof is carried a ratchet wheel 16 adapted to he engaged by the pawl 17 carried on the rocking bearings of the conveyer bar 12, in such position and relation that the pawl normally rides over the teeth of the ratchet wheel and allows the worm to remain inactive except at the period that the blade holders are swung from one drum to the other after having contacted with the opposite faces of both. In operation, therefore, the hangers and blade holders are advancedfrom one end throughout the length of the drums in regular steps and at the period in the oscillation of the blade holders that they are out of contact with the drums, except at the grinding ends G over which the worm threads are absent to allow the hangers and blades to remain under treatment of the grinding surface as long as considered nccessary by the operator.

The blade holder of my device comprises the hanger 18 having a transverse slot 19 by which it suspended on the conveyor bar 12. On one side of the slot are provided fingers 90 adapted to contact; with the threads on the worm, while the opposite side is pierced at 2-1 to receive the head 23 of the shanlr on vhich the jaws are carried. Depending from said head is carried a spring shank 25 to the lower end of which are attached the, clamping jaws 26 adapted to hold the blades.

One of said jaw members is rigidly atttH'llOtl to the shank while the other member is movably secured thereon by the thumb screw 27 passing through both members. Depending lips 28 are carried on the lower ends of the jaws for grip 'iing' the razor blades between the edges thereof It will be obvious thatthe spring shank 35 will permit yielding contact of the dges of the blades with the face of the sharpening drums.

The drums and worm, as before stated, are driven by the motor M, the current for which is conducted through the switch S mounted on the frame adjacent to the finishing end of the conveyor bar 12. Said switch is provided with a curved pivoted arm S projecting into the track of the traveling blade holders which arm will be encountered by an approaching hanger and moved out of electrical contact before the hanger becomes jammed against the frame, whereby the action of the machine is stopped before injury can occur.

.In Fig.10 of the drawings is illustrated a modified form of conveyor bar and worm in which the worm is carried at one side of the bar, and in Fig. 11 is shown a further form in which the worm is secured above the bar.

Inthe operation of my machine, one or more hangers and blade holders may be suspended on the conveyor bar 12 as shown in Figs. 1 and 3 of the drawings with the fingers 20 contacting with. the worm 15. The drums 4. and 5 are revolved by the train of gears 8, 9, 10 and 11, and the conveyor bar is rocked by the pitman 13 to oscillate the blade holders into alternate contact with the opposite drums. .1\'ftl' the blades carried in the holders have been ground on both edges by the opposite drums, the hangers and blade holders are advanced on the conveyor bar by the rotation of the worm 15' by the engagement of the pawl 17 with the ratchet wheel 16 which action occurs entirely while the blades are out of Contact with the drums.

Ha ing thus described my invention, what I claim as new and desire to be secured by Letters Patent, is-- 1. In a blade shar 'iening machine, the combination with a trame, of a pair of parallel drums mounted thereon with a space between same, means or rotating said drums oppositely and toward each other,

blade holders mounted opposite the space between the drums, means for oscillating the blade holders to alternately contact blades held thereon with the perimeters of the drums and means for conveying the lade holders longitudinally of the drums in stepped stages during the oscillation of the holders while out of contact; with the drums.

2. In a blade sharpening machine, the combination with a frame, of a pair of parallel drums mounted thereon having a space between same, means for rotating said drums oppositely and tmvard each other, a conveyor bar mounted on said frame opposite the. space between the drums. blade holders carried on said conveyor. means for oscillating the blade holders to alternately con-' tact blades held therein with the perimcters of the opposite drums. and means coat-ting with the drum rotating means and the said oscillating means for conveving the blade holders longitudinally of the drums in rocking conveyer bar mounted on said frame' opposite the space between the drums, blade holders slidably carried on said conveyer, means forrocking said conveyer bar to oscillate the blade holders between the drums, and means coacting with the bar rocking means fo advancing the blade holders longitudinally of the drums in stepped stages during' the oscillation of the holders while out of contact with the drum. p

at. In a blade sharpening machine, the combination with "a frame, of a pair of parallel drums mounted thereon having a space between same, means for rotating said drums oppositely and toward each other, a rocking conveyer'bar mounted on said frame opposite the space betweenthe drums, blade holders slidably carried on said conveyer, a worm adjacent to said conveyer-bar in con-. taeting relation with said blade holders, means for riwhing said conveyor-bar to oscillate the blade holders between the drums and means coacting with the bar-rocking BEST AVAILABLE cop means for actuating the worm for advancing the blade holders longitudinally on the rockbetween the same. a train of driving gears for rotating said drums oppositely and toward each other, a ccmveyer-bar jonrnaled on said frame opposite the space between the drums, blade holders remo\'abl and slidably carried on said eonveyer, a worm loosely mounted on said frame adjacent to said comeyer-bar in contacting relation with said blade holders, a shaft rigidly attached to said eonreyer-bar at one end and pivoted on one of the driving wheels forimparting a lateral rocking motion to the conveyer-bar, a ratchet wheel rigidly carried on said worm, and a pawl carried on the bearings of said bar for intermittently engaging said ratchet heel to actuate the worm for advancing the blade holders longitudinally

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