US944989A - Safety-razor. - Google Patents

Description

F. M. 'EDMONDS.

SAFETY RAZOR. APPLICATION FILED mm. 1, 1909.

Patentd Dec.28,1909.

' 2 lKBBTS-BHEET 1.

9 Fig-5.

F. 'M. EDMONDS.

SAFETY RAZOR.

APPLICATION FILED MAR. 1, 1909.

944,989. Patented Dec.28,1909.

2 SHEETS-SHEET 2.

% Z 5 I r 3 Z I 4 FRANK M. EDMONDS, or iaos'roN, nassi cnosnrrs, Assienoa, 3r nirmcrhnia MIESNE i ASSIGNMENTS, 'ro GILLETTE sArErY imzoa 'co vrrANx, or Bosron. .lvrassncnu...

' slams, A'CORPORATION or MAINE-j To all whom 'it mayconcem:

Be it known that I, FRANK MJEDMO DS," Y of Boston, in the county of Suifolk and State of Massachusetts, a citizen of the United States, have invented a-new and useful Improvement in Safety-Razors, of-whi'ch the followingis a specification.

The main inconvenience of safety razors of what may be termed the Gillette type where the blade is clamped between a back piece and a guard or clamp, lies in the fact and that in the only practical form of this razor which has appeared on the market the holder has to be taken entirely apart to insort and adjust or remove the blade.

; My invention pertains ;to an improved form of holder wherein the various parts are so connected together that they never are detached one-from the other in the ordinary 20" use of the razor. A This is due primarily to the fact that what may be termed the handle and the back piec'e are made in one piece, the clamp mechanism being attached thereto in such a way that the clamping operation may take place by the manipulation of the parts without their separation. In the ordinary form of Gillette razor the back piece is separate -from the handle which carries the clamp..-

drawings in which two embodiments thereof .sh0W f ure l is a section on line 11 of Fig. 2, Fig.- 2 is a side elevation section'on line 3-3 of F ig. 2. Fig. 4 is a section on line 4-4 of Fig. 3. Fig. 5 shows a plan of blade adapted to be used in my blade." K v p a In all these views is a back plate which is of a weuimewe' form-but: which is con 1 nectedby' arms a withlth'e handle'B." These t neared thereto arms were bail-shaped te afiord plenty space-between the back pl'a-te andthe handlf' fofthe" manipulation of E'the blade and, the"? O' iv "back ea 2 tliaft ithe' ends of the slot 0 abut nii In the form of my inye'ntion shown in p Specification of LettErsiFatcnt. f Patented 190 Application filed March 1, 1909 SeriaLNo. 480,675. f I

My invention will be understood from the of a blade .holder embodying my invention; Fig. 3 is a 'p pe i iiet lon 'w f awft aC 1 .P/ f d a c ramth he new r s ng the" ro De t vi th ham l't p id. fires Ii'ay'f b i ece l y hld iect ca hy'fthe j o ts pe ing ver; t iapi s after which the rod and clampare ,swimg.

. Figs. 1, 2, a and 4, the "clamp islett'ered ,of '51.

and is mounted on the end of an extensible i rod D pivotedin'the'handle. The handle is slotted for the greater part of its length as sh'ownat b, the walls of the slot being fiat and parallel and the rod'D is pivoted in said 7 slot at d, the rodhaving two of its sides which normally run within the slot flat and parallel-so that it may be swung'in and out from the slot. Adjustability is given to the clamp C by reason of a nutE which is attached to the lower end of the rod D by a pin eeand groove 6 this construction allowing the nut to be turned in either direction on the end ofthe'rod without becoming detached therefrom. The end ofthe rod is given to the stud and the socket which will maintain the parts in that relation. The

outer surface of the shank c is threaded to fit the threads within the nut E so that by turning the nut'in either direction the clamp piece is forced toward the back piece Ato' clamp'a blade against it, or withdrawn therefrom, as the case may be. i The blade is lettered F, and in the form thereof shown in Fig. 5 is provided with holes f which fit over pins a projecting from the upper surface of p the back piece. The clamp C is slotted as at c (se'e'Fig. 3 to allowthe clamp to be moved with relation to the pins a? in the back piece. In operation theclosed ends of the slots bring upfagainst the pins a when the clamp is properlyplaced to center th'ej95 clamps 'with regard to the back piece. of' fadjusttheblade n'po's' a inth s razor t is only necessary to 'turn the n ut tlfl against thepins a'*.,- The nut is then turn edi to drive the clamp against the back piece with suflicient pressure to hold the blade properly in place. The simplicity and convenience of-this arrangement is one which will appeal to all who have had occasion to use the ordinary safety razor of this type.

\A similar arrange ent is shown in Figs. 6 to 10, inclusive, but in this case the nut is lettered H and is headed, being located at the outer end instead of the inner end, as in the other views. The handle B is slotted throughout its entire length, the walls of the slot being parallel as before and the rod lettered D lies in this slot having also parallel walls as before. The outer end of the handle is recessed to receive two portions of a bushing 6 b these portions being similar in all respects and alined with the slot in the handle in such a way as when in place to form continuations of the slot. The rod D is slotted crosswise as at d and a pin 03 serves both to rivet these parts together and also as a pivot about which the rod D may swing when free so to do. The bushing b b and the rod D are provided with a continuous groove 6 and the nut H is provided with a pin it which rides in said groove to hold the nut in place upon the razor. The rod D has at its outer end a head D which is threaded on its interior and engages with threads upon the interior of the nut H so that the rotation of the nut will cause the withdrawal of the clamp C from the back piece. The back piece may be provided with pins like the pins a shown in the other form of my invention in which case the clamp will have slots 0 or the pins a may be omitted as well as the slots 0 in which case the blade may be made as shown in Fig. 11, where it is provided with shoulders 7' adapted to engage with the arms a when the blade is put in position in the razor,'thus being roperly centered and lending itself to the c amping operation due to the proper manipulation of the nut H.

It will be noted as stated above that in neither of these forms of razor are there detachable parts except of course the blade, and that there is a reasonable space allowed for the proper and easy manipulation of the blade; The radical difference which seems to exist between this razor and razors of this class which have heretofore been made, so far as I know, lies in the fact that the back piece and the handle are so constructed that no adjustment exists between them, the adjustment being caused by the manipulation of the clamping or upper piece of the razor which is so constructed that it may be adjusted toward and from the back piece and if necessary swung out to allow the blade to be easily removed and the parts thoroughly cleaned.

It will be noted that inthe form of my invention shown in Figs. 1 to 4, inclusive,

out of alinement therewith, a clam the parts are so arranged that the clamp is always in osition to register with the sides or edges 0 the back piece, and provision is also made by reasonof the pins (1 and slots 0 whereby when swung into position the clamp is properly centered with relation to the back piece and blade.

\Vhat I claim as my invention is:

1. In a safety razor, a handle, a back piece fixedly mounted thereon, a clamp, a pivoted rod and means whereby said clamp may be adjusted thereon toward and from said back piece, said rod being adapted to be swung out from its clamping position with relation to said back piece to expose said back. iece for cleaning and for the reception an delivery of the said blade, as setforth.

2. In a safety razor, a handle, a back piece fixedly mounted thereon, a rod pivoted to said handle to swing into and out of alinement therewith, a clamp connected to said rod whereby said clamp may be swung into and out of registration with said back piece, means whereby said clamp may be adjusted on said rod toward and from said back piece, and means whereby a blade may be centered between said back piece and said handle as set forth.

3. In a safety razor, a handle, a back piece integral therewith, a clamp adapted to clamp a blade against said back piece, means whereby said clamp is connected to said handle to be moved into and out of register with said back piece, means whereby the clamp may swing in a direction normal to the back piece, said back piece having centering pins adapted to receive and center a blade and said clam having slots adapted to cooperate with said pins in centering said clamp against said back piece and holding it centered whereby said clamp when in operative relation with said blade and said back piece will be held from lateral movement with relation thereto.

4. In a safety razor, a handle, a back piece integral therewith, and a clam adapted to clamp a blade against said bac piece, said clamp being mounted on a cross axis whereby it may be swung in and out from 1ts clamping position and also being prov ded with means whereby .it maybe moved in a direction toward and away from said back piece, said back piece having centering pins adapted to receive and center said blade, and said clamp having slots registering with said pins whereby said clamp may be swung into and out from a position registering with said back piece, as set forth.

5. In a safety razor, a handle, a back piece fixedly attached thereto, a rod ivotally mounted in said handleto swing mto ang an means connecting said clamp and said rod whereby said clamp may be adjusted toward and from said back plece, and means for maintaining the clamp in position to register with said back piece while out of ing position, as described.

6. In a safety razor, a handle, a back piece fixedly attached thereto, a rod mounted in said handle, and a clamp, and means for maintaining the clamp in with said position, said means comprising a shank and r,- a stud attached one to the rod and the other t0 the clamp, said stud being angular in cross section and said clamp containing a clampposition to register back piece when out of clamplng clamp may be adjusted toward and from said back piece, as described.

'7. In a safety razor, a handle, a back piece fixedly attached thereto, a rod mounted in said handle, a clamp, and means connecting said clamp and said rod whereby said clamp may be adjusted in a direction toward and from the plane of said back piece, and means connecting said clamp and said handle whereby said clamp may be swung into and out of the plane of said handle, as described.

FRANK M. EDMONDS.

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