US1624328A - Razor-stropping means - Google Patents

Description

April 12, 1927. 1,624,328

H. J. GAISMAN RAZOR STROPPING MEANS4 Filed Jan. 31. 1923 I l in rj rj E?. INVENTOR Hllll INIIII` Patented pr. l2, 1927.

narran stares PATENT OFFICE.

HENRY J. GAISMAN, OF NEVI YGRK, N. Y., ASSIGITOR 'I AUTOSTROPPPATENTS COR- PORATION, OF DOVER, BELAWARE, A GORPOl't-ATIN OF DELAWARE.

RAZOR-STROPPNG MEANS.

Application filed January 31, 1923.

My invention has reference tor means for stropping the cutting edges ofrazor blades and particularly of the class in which a frame carrying a rockable blade holder is reciprocated along a strop.

One of the objects ofV my invention is to provide simple and effective means to cause the blade edge to be moved free from the strop upon the initiation of reverse direction of movement of the machine along the strop to reverse the position of the blade respecting the strop, so that the blade edge will be out of Contact with the strop when the frame starts totravel in such direction along the strop, whereby to prevent the blade from injuring or cutting the strop.

l have illustrated my invention as embodied in the type of stropping machine set forth in United States Letters Patent granted to me under date of Dec. 7, 1915, No. 1,153,332, and as embodied in a safety razor of the class set forth in Letters Patent granted to me April 9, 1912, No. 1,072,726, and other Letters Patent granted to me of the class specified, my invention being illustrated in `the accompanying drawings in connection with a safety razor known on the market as the Auto Strop.

In carrying out my invention l provide means for pivotally connecting the frame of the stropping means with the actuating handle so arranged that when theedevice is moved along a. strop. the initial action will be to cause thel frame to tilt with respect to the strop to cause the blade edge to rise from the strop before the. frame starts to slide along the strop to cause the blade to be reversed in position for stropping. 1n the class of razors referred to a guard for the blade edge is movably supported with respect to the frame so that lugs or hooks upon the guard engage or disengage the blade edge as required for shaving or stropping purposes, and in the embodiment of my invention in such a safety razor 1 provide means whereby the guard will cooperate with the handle, when the guard secures the blade in shaving position, to retain the frame and handle in firm or immovable relation so that the blade and guard will be correspondingly retained in cooperation, and whereby when the guard is released Serial No. 616,006.

from the blade the guard will also be released from the handle to permit the frame and handle to have relative motion for stropping.

My invention comprises novel details of improvement that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings forming a part hereof, wherein- Fig. 1 is a side view illustrating my improvements as embodied in a safety razor provided with stropping means;

Fig. 2 is a partly broken plan View of Fig. 1;

Fig. 3 is a section on line 3, 3, in Fig. 2;

Fig. 4 is a partly broken underside view;

Fig. 5 is a section on line 5, 5, in Fig. et;

Figs. 6 and 7 are detail cross-sections showing theY parts in different stropping positions; and

Fig. 8 is a detail perspective view of one of the pivotal members.

Similar numerals of reference indicate corresponding parts in the several views.

The frame 1 is shown comprising a base 2 provided with spaced substantially parallel arms or uprights 3 at its ends in which spaced shafts Ll, 5 are journaled, a space being provided between shaft d and base 2 for the passage of asuitable strop 6, all ofy which parts are well 'known in theart. The. shaft a is provided with a gear 7 in mesh with a gear 8 on shaft 5 whereby contact of a taut strop against the under portion of shaft l or its encasing sleeve or tube 4 will cause rotation of shaft 5. The shaft 5 is provided with a suitable blade holder `9 adapted to detachably retain a blade 10.

The blade holder illustrated is substantially the same as that shown in Letters Patent granted to me April 9, 1912, No. 1,022,727.

:it 11 is a handle that is pivotally connecte'd with frame 1, being shown pivotally attached t0 the base 2. Said base is shown provided with a centrally disposed opening at 12 in which is pivotally mounted a rockable member 13, shown provided with projections 13a at its ends which vserve as pivots for said member, the base. 2 being shown provided with upwardly opening depressed CII Q Leeeaee seats 14 at opposite sides et opening 12 in edge in a well known manner. The guard. the direction of the length oi base 2, in l have illustrated is pivotally carried by which the pivotal projections 13aare seated t une 1 by means ot lugs 20 depending so that member 131nay roch on base S2. lhe troni base and. corresponding lugs 21 at handle 11 is connected to nieniber 13 by nieans ot a head 15 which is shown provided. with a centrally disposed hublilze portion 152L that is internally threzfided to receive the threaded end portion 11t oi handle 11, the ends et head 15 extending against and opposing the outer surfaces ci the seats 14.-, (Fig. 5). The nieinber 13 and head. 15 secured together to retain the pivotal pre- 'i Stiens 13a of member 13 rotatively in the with the end portions of head g said seats. For such purthe head 15 is shown provided with s or projections 16 which enter holes 17 .t in ineinber 13 and are riveted over against said ineinber to retain the latter and the head 15 together, but in such a manner that said nieinber and head may rock relatively to base 2 in a direction transverse to the ioni., h oi said base and along the strep.

lill hen the stropping machine or sa'ety razor i to be used tor stropping the strop 6 is p: ssed between base 2 and shalt el, in a well known manner, and the strop is held taut, whereupon the user grasps handle 11 to reciprocate the inachine or razor along the strop. Vihen the machine or razor is first pushed respecting the strop, as to the lett in Fig. 6, to reverse the position of t ie blade on the strop, the traue will initially tilt slightly toward the right in said ligure, initially causing the blade edge to rise from the strop before the trarne slides on the strop, and during such sliding to the lett in said ligure the blade will be reversed. to drag on the strop, as indicated in Fig. 7. l/Vhen the stroke described has been stopped and the machine or razor is to be inoved toward the right in Fig. 7, the initial action will be to tilt the traine toward the left in said iigure to cause the blade edge first to rise from the strop, and continued inoveinent ot the machine along the strop in said direction will cause reversal et the blade to drag on the strop, and so on the niachine or razor is reciprocated along the strop. The initial raising of the blade edge from the strop, betere the inachine or razor slides on the strop, will have the beneficial eiiec-t ot preventing the blade edge iroin injuring or cutting the strop by reason oi' the advance ot the blade edge toward the strop, which might occur in the event that the gears did not first cause the blade er ge to move away -lroin the strop when the inachine or razor is reversed in its sliding direction along the strop.

ln the example ot my invention illustrated as embodied in a safety razor a movable guard is indicated at 18 provided with hooks or lugs 19 at its ends to engage the blade the enfls of the guard located adjacent to the iuW rivets 22 through the corra spreiding pairs of lugs pivota-lly supporting the guard upon the traine. rlhe guard is shown provided with a projection 23 having an opening 2li receiving the handle freely so that the guard may be rocked. rlhe portioir of projection 23 extending on the side or the handle opposite the guard serves as a :nger piece to enable the guard to be rocked o? inoved to engage and release the blade. fh, .icular construction ot guard illusis substantially as that set iiorth in o' y application for Letters Patent for safety razor iiled August 19, 1921, Serial No. 193; 532, although iny present invention is not liniited ior use with the particular guard illustrated. rllho guard is provided with a portion, shown in the '.t'orin of a projection at 18a, (Fig. l), which will1 engage the adjacent side ot ineinber 18 at 13b to oppose t ie latter when the guard engages the blade, as illustrated in Fig. 3, whereby the base 2 and the handle will be firmly united tor shaving purposes since the guard then will oppose rocking of ineinber 13 with respect to traine 2. l/TJ'hen the razor is to be used ior stropping and the guard is released from the blade for such purpose the projection 18n ot the guard will nieve away from the part 13b oi` ineinber 13 to release the latter so that it inay roch respecting base 2, as illustrated in `Figs. G and 7.

My in'iprovenients are simple in construction and effective in use whether utilized in a machine for stropping razor blades as distinguished from safety razor, or when used in a. sat'et-y razor `having stropping means, whereby the blade may be stropped while in the traine without removing the blade therefrom.

ln this application l do not claini the means 'for stropping blades set iorth as that is included in a divisional application iiled by nie November 14, 1925, Serial No. caen.

lia-ving now described niy invention, what l claiin is:

1. il safety razor comprising a trarne provided with ineans to roel: a blade, a handle, a guard niovably carried by the traine, and operative relatively to the handle, ineans pivotally connecting the handle with the traine, and ineans cooperative between the guai l and the handle to retain the traine and iandle iiroin relative movement when the blade in shaving position respecting the guard.

2. il safety azor c'oinprisinga traine provided 'ith means to rock a blade, handle, a guard inovabiy carried by the traine, and

operative relatively to the handle, means pivotally connecting the handle With the frame, and means cooperative between the guard and the first named means to retain the frame and handle from relative movement when the. blade is in shaving position respecting the guard.

3. A safety razor comprising a Jframe provided with means to rock a blade, a handle, a guard movably carried by the frame, and operative relatively to the handle, a member pivotally connected to the frame, and means to connect said member With the handle, said guard being cooperative With said member to retain the frame and handle from relative movement when the blade is in shaving position respecting the guard.

4. A safety razor comprising a frame provided With means to rock a blade`,a guard movably carried by the frame, said frame l having an opening, a member movably retained in said opening, a handle, and means to connect the handle with said member, the ard being movable relatively to the hanle1 and provided with means to engage said member to retain the frame and handle from relative movement When the blade is in shaving position respecting the guard.

HENRY J. GAISMAN.

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