US1599607A - Safety razor - Google Patents

Description

Sep t. 1441926. I. N. ZELLER SAFETY RAZQR Filed Nov. 5, 1920 Patented Sept. 14, 1926.

' UNITED STATE-S PATENT OFFICE.

ISAIAH N. ZELLER, OF CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN SAFETY RAZOR CORPORATION, OF BROOKLYN, NEW YORK, A CORPORATION OF VIRGINIA SAFETY RAzoa.

Application filed November 3, 1920. Serial No. 421,466. N

This ihvention relates to safety razors but more particularly to blade holders for the same and has for itsprimary object to provide a structure'which is simple, durable 5 and efficient.

Another important object is to provide a form of blade holder which will permit the use of a double edged blade in types of safety razor frames now capable of using 1 only a single edgedblade.

Further objects of the invention are to save materials, to facilitate cleaning, and to provide a separable blade holder.

The many other objects and advantages 15 of the resent invention will be better understood Ey reference to the following specification in connection with the accompanying drawings disclosing certain selected em bodiments thereof in which:

Fig. 1 is a front elevation of my invention.

. Fig. 2 is the same as Fig. 1 with the holder mounted in a safety razor frame, the

cover being removed. f

Fig. 3 is the same as Fig. 2 with the cover in place.

FFig. 4 is a section on the line 4-4 of F Fig. 5 is a section on the line 5--5 of ig. 1. v

. Fig. 6 is a front elevation of a modified form of the invention.

Fig. 7 is the same as Fig. 6-with the holder mounted in a safety razor guard, a portion of the cover being removed.

"T Fig. 8 is a section on the line 8--8 of 1g. I I Fig. 9 is a front elevation of another modification of the invention.

Figs. 10 and 11 are sections on the lines "10- -10 and 1111 respectively of Fig. 9.

Fig. 12 is a front elevation of a modification of the invention.

Figs. 13 and 14' are res ectively front and end elevations of a modi ed form of the invention. I v

Referring to the drawings the invention is shown to comprise a'base plate 15 provided with inwardly turned portions 16 on opposite ends thereof forming a channel to receive the end edges of a blade 17. The lower portion: of these end portions 16 are spaced sufiiciently from the body of the base plate toermit the blade 17 to be slid upwardly t erebetween to the desired position. The upper edge part 18 of each of these end portions is indented to press the present types of safety razors. In these razors the blade has usually been drop ed into place on the guard and some means has been provided to press against the rear edge of the blade to force'the forward sharpened edge against the stops on the frame. In the form of safety razor illustrated in Figs. 2, 3 and 4 the rear edge of the blade is engaged by the holder support comprising the spring pressed arm 21 on the frame 22 and pressed against thestops 23 on this frame as the cover 24 was lowered into contact with the blade. With my holder this pressure would .be exerted a ainst the rear rojecting edge of the hol er, thus protecting the rear edge of the blade.

Sin 1e edge blades now in general use either ave a thickened rear edge'to provide the necessary rigidity or, in the case of the sheet steel blade, a rigid head is pressed over the rear edge and erman'ently at-' tached thereto. The thic ened blade *requires the use of considerable steel and is.

expensive to produce so that the sheet metal blade has largely superseded it. When the single sharpened edge becomes dull, the

blade must be resharpened or the blade and,

head discarded as they are not separable.

-With the blade holder of the present invention the proper reinforcing is procured and the same holder may be used with an indefinite number of blades of either the single or double edge type. I

The :holder may be free within the frame in the manner described but I have found it advantangeous to'igconn ect it to the frame permanentl' ;The,;=} form of {connecting means we (1 naturally vary with the nstruction of'the frame or might be vari in any particular type of frame. In the type of frame shown in Figs. 2, 3 and 4 the base 'plate 15 of'the blade holder is provided '25 and are bent into ring form to provide a hinge connection between the parts 15 and 27. A projection 28 on the upper or rearward edge of the plate 27 is bent forwardly and the ears 29 thereon folded about the spring pressed arm 21 on the frame 22 to connect the holder to the frame when the cover 24 is raised by pressing on the outer extremity 30 thereof, the spring pressed arm 21 swings rearwardly, causing the plate 27 to swing away from the base 31 of the frame 22, and drawing the edge 20 of the blade 17 upwardl and away from the guard teeth 32 and t e stops 23. This enables the lather collecting between these teeth to be removed and the blade easily cleaned. The blade may now be removed from the holder and eitherreversed to utilize the reserve edge or a new blade inserted. The holder would remain permanently within the frame.

In Figs fi, 7 and 8 is shown a modified form of the invention comprising a base plate 33 provided with inturned end por tions 34 to overlap the edges of the blade 35. The end edges of the blade are bevelled from the center and the end portions 34 are bent angularly to fit these bevelled edges. This form is advantageous as the holderengages the blade only at its ends. The angularity of the end portions 34 prevents the blade advancing too far into the holder.

This holder may be used within a frame without attachment thereto in the same manner as the previous embodiment but in order to illustrate the application. of my holders to another well known form of frame, I have provided the base late 33 with slots 36 to receive strips 37 0 metal which have their lower portions bent intoa loop 38 and their upper extremities folded about the spring arms 39 in the frame as shown in Fig. 8. These spring arms 39 form the holder support which yieldingly presses the blade against the usual stops 40 on the frame. Lifting of the cover 41 draws theblade away from the stops 40 and exposes the guard teeth 32 in the manner described in connection with the previous embodiment. In this construction also it will be noted that the pressure usually exerted against the rear edge of the blade is taken by the holder.

In Figs. 9, 10 and 11 is shown a modified form of holder practically identical With the base plate of Fig. 1 except that a rigid head 42 is fitted over the upper edge portion of the base plate 43 and the depending pfo jections 44 on the forward edge thereof are depressed to bind the u per part of the end portions 45 against the base plate and to retain the head on the holder. These depressions in the end portions perform the stop action on the blade described in connection with the embodiment shown in Fig. 1 and prevents the rear edge 46 of the blade 47 contacting with the lower edge 48 of the holder.

In Fig. 12 of the drawing is shown a modified form of holder in which the base plate 49 has its upper portion 50 folded forwardly over the remaining portion and sufliciently spaced therefrom to admit a blade 51 therebetween. The folded corners 52 are indented to form a stop for the upper edge 53 of the blade to prevent contact of other than the extreme corners of the sharpened edge of the blade with the plate. The remaining portion of this sharpened edge is held away from the fold 53 of the base plate by these stops. q

The channels 16, 34 and 45, as well as the folded over portion 50 of Figure 12, con stitute a seat in which the blade is inserted edgewise from front to rear of the device,

and in each instance the insertion of the, blade is limited to position its active edge projecting forwardly beyond the front edge of the holder and its rear edge short of the rear edge of the holder and protected thereby.

Figs. 13 and 14 show a modified form of blade 54 which is slitted at both ends and the edges of each slit bent outwardly in opposite directions to engage with the bottom edge of a base plate to prevent the blade sliding upwardly too far between the retaining portions of the holder. 'Such slits and that this cutting unit is made up of a double edged razor blade and a holder therefor, these two parts of the cutting unit beprovides a cutting unit for safety razors,

mg so associated that they may be placed as a unit in or upon different types of safety razorflframes which are originally constructed for using single edged blades only.

It will therefore be seen that my improved blade holder is simple in construction, durable and eflicient. It permits the use of double edged blades in safety razors now only. capable of using a single edge blade. The holder is readily separable from "the blade so that one holder may be used with an indefinite number of blades and'will' provide the proper protection and reinforcement. The holder makes possible a considerable saving in materials because the base plate will strengthen the entire blade, and enable an exceedingly narrow blade to be used. This holder is capable of useunattached to the safety razor or it -may be attached thereto permanently. The

attaching of the holder to the frame greatly facilitates the cleaning. of the frame and the blade. The marking of the edges of a double edge blade makes it possible for the user to continue to use one edge 'until this has become dull and then to use. the other edge. v

I am aware that many changes 1n construction and in arrangement of parts may by be made without departing from the invention and I reserve the right to make all such chan es as fairly fall within the scope of the fol owingclalms. I claim p 1. A razor blade holder comprising a base plate, the ends of said base plate being bent over to form channels to receive the ends of a razor blade inserted therein edgewise, parts of said bent over ends being depressed to form stops inthe channels to engage the edge of a razor blade inserted therein and to 'mit its edgewise movement.

2. A razor blade holder comprising a base plate, portions of said base plate being bent over to form channels to receive-a razor blade inserted edgewise therein, parts of said bent over portions being de re'ssed toformstops engaging the extreme ends of the edge of a'razor, blade in said cha nels and to limit its edgewise movement thdiein.

3. In combination, a razor blade holder comprising a base plate, having a channel to receive a razor blade inserted edgewise therein, said channel provided with means to limit the movement of said blade in said channel by engagement with. the extreme ends of said blade, a razor frame having 'a blade holder support, and means for hin edly connecting said holder to said b ade holder support.

4. In combination, a razor blade holder} comprising a base plate, the end portions of said base plate having channels to receive the ends of a razor blade inserted edgewise therein, said channel provided with; means to limit the movement of said blade in said holder therefor, sai

a stop to limit the/edgewise movement of I said blade.

6. A cutting unit for safety razors comprising a doubleedgedrazor blade and a holder therefor, said holder having channels receiving. the ends of the blade and extendingin a direction from front to the rear the front towards the rear of the holder and limited in its'insertion to a position with its active edge projecting forwardly. beyond the front edge of the holder and its rear edge between its end portions short of the rear edge of the holder and protected there- 7'. A razor blade holder comprising a base plate having channels adapted to engage the ends of a razorvblade inserted edgewise therein, and stops. in said channels positioned to engage the extreme ends of the cutting edge of a blade inserted in said channels. 8. A razor blade holder comprising a base plate having a channel adapted to receive a razor blade inserted edgewise therein, and

a stop in said channel positioned to engage the extreme end of the cutting edge of a.

blade inserted in said channel.

of the holder, the blade being inserted from 9. A razor comprising a frame having guard teeth, a blade holder provided with channels to receive a razor blade, means securing said holderto said frame and. permitting movement of said holder to and from said guard teeth to permitinsertion of'said bladein said holder by movement of the blade from the guard teeth towards the rear of the-holder.

10. A c'utting unit for safety razors, com

prising a double edged razor blade and a.

older therefor provided with a seat having the blade inserted edgewis therein from frontto rear of the holder and limited in its insertion to a position with its active edge projectin forwardly beyond the front edge, of the ho denand its rear edge between its end portions short of the rear edge of the holder and protected thereby. 11. A cutting unit for safety razors, com 'prising a double edged razor blade and a holder having chan-- nels receiving the ends of the bladeand extending in a direction from front to rear of the holder, the blade being-inserted from the means, other than the side walls of the channel, to limit the insertion of the blade to a position with its active edge projecting forwardly beyond the front edge of the holder-- and its rear edge between 1ts end portions short of the rear edge of the holder and protected the y- ISAIAH front towards the rear of the holder, and v

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