US1849919A

US1849919A - Safety razor

Info

Publication number: US1849919A
Application number: US338965A
Authority: US
Inventors: Henry J Gaisman
Original assignee: Gillette Safety Razor Co
Current assignee: Gillette Co LLC
Priority date: 1929-02-11
Filing date: 1929-02-11
Publication date: 1932-03-15
Anticipated expiration: 1949-03-15

Description

March 15, 1932. A l||. .1.-GAlsMAN 1,849,919

sA-FETY RAZOR Filed Feb. ll, 1929 ze l'` Il l' li T f6" rl." ATTORNEY I Patented Mar. 15, 1932 UNITED 'STATES' HENRY J'. GAISMA-N, 0F NEW YORK, Nr Y., ASSIGNOR, BY MESN E ASSIGNMENTS, TO GIL- PATENT .o1-FICE LETTE SAFETY RAZOR COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF DELAWARE SAFETY Razon Application iled February 11, 1929. SeriaI No. 338,965.

An object of thisd invention is to provide a blade holder .so organized that it will retain for shaving a blade that,is provided with means to co-operate with parts of the holder and will not retain for shaving a blade that is made differently from, the first named blade.

The invention comprises novel details of construction that will be more fully herein- 10 after set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings in which Fig. 1 is aside view of a safety razor embodying this invention.

Fig. 2 is a partly sectional front view showing the blade holder in a raised position. Fig. 3 is a section on

line

3, 3 in Fig. 2. Fig. 4 is a view similar to Fig. 2 with the blade holder members separated. Fig. 5 is a perspective view of a modified blade.

Fig. 6 is a view similar to Fig. 2 including the blade of Fig. 5.

Fig. 7 is a section on line 7, 7.in Fig. 6, and Fig. 8 is a side view of the razor of Fig. 6. The blade holder illustrated comprises two members 1 and 2 movably connected together to receive a blade 3 therebetween. The me m bers 1 and 2 are shown pivotally connected together by apivot pin 4.- at one end of member 2 journaled in spaced hinge parts 5 on member 1 on opposite sides of projection 6 or member 2that carries the pin 4. The spaces 7 within the hinge parts 5 are elongated to permit the pin 4 within said spaces to move laterally a limited distance whereby the member 2 may be slid or adjusted lengthwise relatively to member 1 and blade 3, (Figs. 3 and 7). At the end opposite the hinge the merriber 2 is provided with a keeper 8, shown in the form of a hook, adapted to engagethe adjacent end of member 1 to keep the members F land 2 clamped or locked upon the blade for shaving, (Figs. 2, 3 and 6). The member 2 may be slid or adjusted from the position shown in Fig. 3 to the position shown in Fig. 7 to release the blade.

The member 1 -is provided wlth one or more projections 9, suitably spaced apart, to

enter appropriate openings 1() in blade 3', to i retain the blade in shaving osition, preventing lateral shifting ofrthe lade between members 1 and 2. The member 2 is) provided with openings 11 adapted to receive the projections 9 when the members 1 and 2 are closed against the blade, (Figs. 3 and`7). The openings 11 are suiiciently wide to permit the member 2 to move from the position shown in Fig. 3 tothe position shown.in Fig. 7, and vice versa. The openings 10 in the blade may be cutthrough the metal of the blade, or may be in the form of depressions stamped or embossed in the blade. nThe term opening7 is used to include either of the forms mentioned. The member 2 is pro-- vided with a projection 12 adapted to bear against a proper blade when the members are closed against the blade without entering one of the. openings 10 in the blade, (Fig. This 'arrangement permits the member 2 to be slid or adjusted lengthwise to engage the keeper 8 with the member 1, or to be slid reversely to disengage the members for removal and replacement ofa blade. The member 2 is somewhat resilient so that when projection 12 bears on the blade, with the keeper 8 engaging the member 1, 'the is in mesh with a gear 18 secured to a rollerl or shaft 19 journaled Vin and operative between the upr'ghts 15. When a s trop is passed through the frame 13 in engagement is reciprocated along the strop the roller and gears will rotate and cause the blade holder and blade to rock back and forth for stropping the.blade edge. The razor traine and with the under side of roller 19 and the razor j d portion 2a of the blade holder will lengage operating devices are similar to thewell known Autostrop safety razor.

A guard for the blade edge is indicatedV When a blade is used having proper openings I10 so that the member 2 of the blade yholder can assume the positions shown in Figs. 2 and 3 the end portion 2a of member 2 will be in a position within t e frame 13 enabling the blade holder to e adjusted relatively to the guard for shaving, with the end portion 2a between the uprights 15, and free from the adjacent Aupright, as shown in Fig. 1, so that the guard may be adjusted relatively toI the blade. In the example illustrated, the guard is shown provided Withv a projection 28 adapted to enter a recess 29 in anextension 30 on member 1 of the blade holder'to retain the latter with the blade in shaving relation to the guard, (Fig. 1).

Y .In the event that a blade is inserted in the blade holder that is not provided with open ings, in the properposltions; but with an opening 10a in position to receive the projection 12, when member' 2 is closed Iagainst the blade, and with projections 9 in any other openings 10 of the blade, the member 2 cannot be slid or adjusted. along the blade because the rejection 12 will abut against the wal-1 o parts in the position shown in Figs. 6 and 7 In such position of the parts the portion 2a of member 2 will be in register with the adjacent upright 15 of the razor frame, (Fig.

l6), and the keeper 8 wi'll not be vin engagement with member 1, so that the members 1 and 2 will be unlocked andthe blade will be loose between them.^ If an attempt is made'to' adjust. the blade to the ard the the adjacent upright7 15 and i' prevent thel blade holder from being set in shaving relation-:to the guard, the blade holder being 'sto f v as-inthe position shown in Fig. 8.

earrangement described is adapted to n connection with openings in blades ln-theff of a designation to indicate the original 'manufacturer of the razor and its proper blades, o that the latter may be used lin the blade older described. Should` anv `unauthorized manufacturer of 'blades make Vand sell blades having an opening that will vreceive the projection 12 such blades cannot be used in the blade holder. `For instance, the

, pended claims.

opening 10a, with the b nproper blade shown in Figs. 2 and 4 has the letter L cut in the middle of the designation and the projection 12 will not enter such letter opening, so that the members 1 and 2 can be adjusted to operative position, whereas in Figs. 5 and 6 a spurious blade is illustrated having the letter C cut in the middle of the designation so that the proj ection12 can enter the portion 10a of such letter opening to prevent the members 1. and 2 from being adjusted to operative position. Hence, such spurious blades cannot be used in the blade holder described." Changes may be made in the details of construction and arrangement of parts set forth without departing from the spirit of the ap- Having-now described my invention what I claim is `1. A blade holder having a pair of members movably connected together to receive a blade therebetween, a blade having openings, one of said members having one or more projections to enter corresponding openings .in the vblade tovposition the blade in the holder,

the other member having openings to receive the lfirst-named projections and having va l projection to bear againstsaidlade at a distance from the openin s and m ans cooperative between said mem ers to keep said members locked to retain the blade therebetween when said projection bearsK against said blade. f

2; A blade holder as setvforth in claim 1 in' which' the second named member is resilient to permit its projection to bear against a blade and to enter an opening in a blade, the means to keep said members locked together including a keeper on the second named member toco-operate with the first named mem- 3. A blade holder having a pair of members pivotally and slidably connected together, one of said members having one or. more projectins to enter corresponding openings 1n a blade, the other member having a projection to bear against a blade and permit said member to slide in bladeI retaining position, said projection-when in an openlng in a blade engaging the latter to keep said member from sliding, and means to keep said v members locked to retainthe blade therebef tween.

\ 4. A bladejho'lder asset forth inclaim 3 in member and a keeper on said member adapted to resiliently co-operate with the first named member for locking said members to retain a blade therebetween.

6. A safety razor comprising a frame, a blade holder movably carried thereb said blade holder including a pair-of mem ers to receive a blade therebetween, said members being pivotally and slidabljT connected together, one of said members having one or more projections to enter a blade, the'other memberhaving a portion to register with the frame when in one position and having a projection to bear on the blade to permit said member to be moved out of register with the` frame, said projection` being in position t0 enter an opening in an unauthorized blade to enga the latter and prevent the last named mem er from being moved out of register With said frame to prevent retaining theblade in shaving position, means to retain the members locked and a guard for the blade.

7. A blade holder as described in claim 6 in which one of the members has a keeper to .co-operate with the other member when said members have been adjusted to blade retaining positiomsaid keeper being retained out of engagement with said other member when y its projection engages an opening in a blade.

8. A blade holder comprising a pair of clamping members to retain a blade therebetween, a hinge connecting said members in-y cluding a pintle lon one of said members and a pintle-bearing' on thevother one of said members, said pintle-bearing being elongated in the direction of the lengt/hof said members and thereby'7 permitting the member bearing said pintle to slide fin longitudinal direction in relation to the other member, and a keeper on one of said members adapted to co-operate with the other member to keep 'said members locked against the blade, one lof said clamping members being provided with a projection to ear and slide against a face of the blade to retain said keeper in co-operation with the adjacent clamping member. HENRY J. GAISMAN.

resilient andl