US1455726A - Safety razor - Google Patents

Description

May 15, 1923. 1,455,726

H. B. HARTMAN SAFETY RA ZOR Filed May 5, 1922 2 Sheets-Sheet 1 May E5, 1923. 1,4553% H. B. HARTMAN SAFETY RAZOR Filed May 5, 1922 2 Sheets-Sheet 2 Ell 'Petented May 15, lQZZE.

. HARRY B'UXTON HARTMAN, 9F SCOTTDALE, IPENNSYLVANIA.

SAFETY RAZOR.

Application filed May 3, 1922. Serial No. 558,185.

To all whom it may concern:

Be it known that l, HARRY B. HARTMAN, citizen of the United States, residing at Scottsdale, in the county of West-moreland and State of Pennsylvania, have invented certain new and useful Improvements in Safety Razors, of which the following is a specification.

This invention relates to an improvement in safety razors. I

A primary object of the invention is to provide a simple, practical and reliable construction that may be easily and economicallv manufactured, and which may be readily manipulated to quickly clamp the blade in position or release the same and'yet at the same time hold it securely in place when in use. In that connection the means for clamping or holding the blade also constitutes a guard or protector for the corners of the blade thereby reducing the danger of cutting or scratching by the corner of the blade.

A further object of the invention is to provide a novel universal joint for connecting the blade carrier with. the handle. lln that connection it is proposed to provide a spring tensioned joint whereby the blade carrier may be readily set to the desired adjusted position and frictionally held in position without requiring other attention.

A. still further object is to provide a universal joint connection that is susceptible of being easily manufactured and assembled at a minimum of expense and labor.

With the above and other ob ects in new 7 which will more readily appear as the nature of the invention is better understood, the same consists in the novel construction,combina-tion and arrangement of parts hereinafter more fully described, illustrated and claimed.

A preferred and practical embodiment or? the invention is shown in the accompanying drawings, in which:

Figure l is a plan view of a complete razor embodying the present improvements and without the blade.

Figure 2 is a plan view of the blade carrier showing a blade positioned therein.

Figure '3 is a horizontal sectional view taken on the line 3-3 of Figure 2.

Figure 4 is a detail sectional view taken on the line l4 of Figure 2.

'Fi re 5 is a detail peective view of the b ade.

Figure 6 is a side elevation of the razor partly in section showing more clearly the universal joint connection.

Figure includes side and top views of the socket portion of the joint.

Figure 8 is a detail view of a straight form of handle.

Figure 9 is a side elevation illustrating the use of the handle in Figure 8. @5 Similar reference characters designate cor responding parts throughoutthe several figures of the drawings.

In the embodiment of the invention shown in the accompanying drawings it is proposed to'provide a blade carrier I mounted upon a handle H by a novel universal joint J whereby the blade and handle may be adjusted to any desired and convenient angle to suit the individual user, as will hereinafter more fully appear.

Referring first to the blade carrier 1 it will be observed that the front edge is formed with a plain guard portion 2 while thejbody is preferably provided with a pair of upstanding posts or lugs 3-3 forentering the openings 4-41: of a bladeB thereby to properly position and hold the cutting edge of the blade with reference to the guard edge '2.

For the purpose ofsecuring or looking the blade to the carrier novel swinging clips designated generally as 5 are used. As will be seen from the drawings each clip is pivoted as indicated at 6 adjacent a rear corner of the carrier so that the same may be moved into and out of overlapping or embracing relation with the blade and carrier to clamp the blade in place. Structurally each clip 5 preferably consists of a body 7 the rear end of which is pivoted to the underside of the carrier while the forward end is made of substantially U-shaped cross section thereby providing upper and lower clamping jaws 8 and 9 respectively for overlying and engagroe ing with the blade and underlying and engaging with the bottom edge of the carrier. in connection with the upper clamping jaw 8 it will be observed that the same is QTQ- vided with a'raised portion S fer fitting roe over and clearing the upstanding posts on lugs 3 which project through the openings in the blade 3.

Also another important and distinctive feature of the jaw 8 is that'it extends forno wardly as indicated at 10 to-overlie or cover the corner of the blade B thereby providv 25 durin at 11. I This ing a guard for eliminating the possibility of cutting or scratching by the corner of the blade which would be otherwise left unprotected.

From the foregoing it will be apparent that the present invention provides a carrier for holding a single edged blade B having perforations for fitting over fixed posts or lugs 3 on the carr1er, the blade bemg then prevented from being displaced from the posts by means of the pivoted or swinging clips 5 operating ln the plane of the carner. In that connectlon 1t will-be observed that the interlock between the blade and the lugs reliably holds the blade in position so that the cutting edge thereof will always be properly positioned with 4 reference to the ard. Then, after the clips have clainpe displacement from the lugs while at the same time the guard edges of the CllPS Wlll conceal and protect the corners of the blade so that they will not cut or scratch the face shaving. a Re erring now to the universal joint connection J for adjustably mounting the blade carrier on the handle it will be observed that the-same includes ball and socket mem- 80 bars which are capable of facile assembly and also are of: great simplicity, thereby materially enhancm production in quan tities. To that en the present arrangement includes a socket member or shell 11 as which is preferably in the form ,of a tube having at one edge the bosses 12 for fitting into 0 enings 13 in the blade carrier 1 so that tl fe same may be riveted to the blade carrier thereby to hold the socket member firmly in lace. a

' The an of the 'member11 opposite that having the bosses is slotted as mdicfited at 14 to provide the socket seats 15 which when bentinwardly as shown in the drawing provide a seat for receiving the ball 16. When the seats are bent'into position to provide the base of the socket for receiving the ball a four-way slot is provided, andlasshown in Figure 9 for example, the shank 17 of .50 the handle may fit into any one ofthe wings of the four-way slpt to thereby establish an interlock betweenv the {handle and the socket member if desired, However, it is one of the objects of the {present invention as to provide a ball and socket joint which becomes automatically held in :adjusted or set position and therefore a splrin 18 is utilized' to frictionallhold ,:t e hall 16 a'against'th'e seats 15 o the tubular member ring'18 is vconfined between the ball and t e underside ,of the blade carrier 1" so'that-when the parts are assembled,

the l springis concealedwithin the housing afi'o ed y the tubular .member 11 yand by' e TGESOIl Of the compression'thereof due to its 16. After the ball is placed over the spinthe blade to the carrier- 20 the .blade will be effectually held againstv 18 may then be placed behind the ball 16 confinement in the relative small space between the ball and the blade carrier the ball is pressed against the seats 15 with suflicient friction to hold the blade carrier at any desired angle with reference to the handle.

As will be observed from the drawin the shank 17 of the handle H is fitted with a spindle portion 17 for receiving the ball [6 dle the end ofthe latter may be riveted to securely hold the ball thereto. Also, it will be iapparent that the shank-17 of the handle I may be curved or angular as shown in Figure 6 or may be straight as shown in Figures 8 and 9.

With reference to the manner of assembling the construction described it may be observed that the ball 16 may be. dropped into the spring housing or socket member 11 and the spindle portion 17 of the ban dle shank placed through the opening in the ball and the end of the spindle riveted while the ball is in the housing. The spring and the bosses 12 inserted in the openin s 13 in the blade carrier. The ends of t e bosses 12 may then be riveted to hold the spring housing firml to the carrier and also confine and house t e sprin to' cause the same to exert the proper tenslon on the balla en the partsare assembled the razor blade holder can be revolved a complete turn and when it is desired to lock it at a shaving angle the shank 17 maybe placed lnto one of the slotsl4. a

Without further description it is thought that the features and advantages of the present improvement will be I readily apparent'to those skilled'in the art and it will of course'be understood that" changes in the form, proportion and minordetails of constructlon may be resorted to without departing from the s irit of the inventionor scope of the appen ed claims. I claim 1. A safety razor including a blade carrier having means for interlockingwith the blade toposition the same with reference to the guard edge thereof, clips pivoted to the rear corners of the carrier and havin earner. '3.-A safety razor including a blade carher having upstanding posts theregn, a blade provided with openings ,for receiving-1st .and guard clips pivotally securedto the said posts, and pivoted blade clamping clips arranged at the opposite side edges of the blade carrier and consisting of a body piv otally connected to the carrier-at one end while the opposite end is of substantially U-shaped formation providing clamping jaws, one of said clamping jaws being provided with a recess for receiving the portions of the upstanding projections protruding through the blade and also provided with an extension for overlying and guarding the corner of the blade.

4. A safety razor including a blade carrier, and combined blade clamping and guard clips pivotally secured to the carrier and adapted to project beyond the position of the corner of the blade when moved into clamping position with the blade.

5. A safety'razor including a blade car rier, a tubular socket member fitted thereto,

'said socket member having a slotted ball seat at one end and connected at the other end with the carrier, and a handle having an angular end portion, a ball carried by the tip of the angular end portion of the handle and adapted to rest in said ball seat,

and a spring confined between the ball and the carrier.

6. A safety razor including a blade carrier, a tubular socket member rigidly secured at one end to the under side of the blade carrier, and the opposite end thereof being provided with a slotted ball seat, a ball having a bearing on said seat, a spring confined between the carrier and the ball for frictionally holding the latter to its seat, and a handle fitted to the ball and adapted to register with said slots to temporarily lock the blade carrier in a set angular position to provide the desired shaving angle for the blade on the blade carrier.

7. A safety razor including a blade carrier, and combined blade clamping and guard clips shiftably secured to the carrier and adapted to mask the corner of the blade when moved into clamping relation thereto.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

HARRY BUXTON HARTMAN.

Witnesses:

ELIZABETH LANDENBERGER, A. J. STRICKLER.

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