Safety razor

Application filed July S, 1922. Serial No. 573,120.

To dll whom, it may concern:

Be it known that I, Harry B. Hartman, citizen of the United States, residing at Scottdale, in the county of Westmoreland 5 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 safety razors, 10 and more particularly to a novel and improved joint for connecting the handle with the blade carrier whereby the latter may be readily shifted into any desired position to obtain the proper shaving angle for the 15 blade, according to the requirements of the individual user.

A primary object of the invention is to provide a simple, practical and reliable joint construction that may be economically man20 ufactured. and readily assembled thereby reducing the cost of manufacture to a minimum. In that connection it is proposed to provide an arrangement of parts which produces in effect a spring-tensioned universal 25 joint whereby the adjustment may be readily . effected by simply manipulating the blade carrier to the desired angle by finger pressure without the necessity of operating special parts such as set-screws, thumb-nuts, 30 or the like.

With the above and other objects in view which will more readily appear as the nature of the invention is better understood the same consists in the novel construction 35 combination, and arrangement of parts, hereinafter more fully described, illustrated and claimed.

A preferred and practical embodiment of the invention is shown in the accompanying 40 drawings, in which:

Figure 1 is a plan view showing my improved razor construction.

Figure 2 is a longitudinal sectional view taken on the line 2—2 of Figure 1.

Figure 3 is a transverse sectional view taken on the line 3—3 of Figure 1.

Figure 4 is an exploded view showing the parts comprising the preferred form of joint constituting the present invention.

Figure 5 is a detail bottom, plan view of a. blade carrier illustrating a modification of the invention.,

Figure 6 is a longitudinal sectional view taken on the line 6—6 of Figure 5.

Figures 7 and 8 are vertical sectional views taken at right. angles to. each other showing a further modified form of the invention.

Similar reference characters designate corresponding parts throughout the several 60 figures of the drawings.

As previously indicated, it is the purpose of the present construction to provide a novel joint which will permit of the blade carrier being readily shifted about a hori- ⁶⁵zontal as well as perpendicular axis with reference to the handle of the razor thereby making it possible to manipulate the carrier in such a way that the cutting edge of the blade may be disposed for use On the face 70 at the desired angle. In carrying forward this general object it is proposed to provide a construction which embodies in its organization a novel socket member A adapted to be held to the blade carrier B by suitable ⁷⁵cap-member C which may assume various forms in different embodiments of the invention.

Referring first to the preferred form of construction shown in Figures 1 to 4 of the ⁸⁰drawings it will be observed that the socket member A is of thimble like formation and preferably consists of a substantially tubular body 1 having the rounded bottom or base 2 provided with a slot 3, while the upper edge ⁸⁵of the tubular portion 1 is provided with a circumferential bead or flange portion 4. The interior of the rounded or bowl shape portion 2 of the socket member provides a pocket or seat for receiving a ball 5 that ⁹⁰may be threaded, riveted, or otherwise fitted on the reduced shank portion 6 of the handle H.

As will be observed from Figure 4, the bead 4 of the socket member is adapted to ⁹⁵engage with the seat 7 of an inturned shoulder 8 formed on the tubular portion 9 of , the carrier B. Therefore, it will be understood that the socket. member 4 and blade carrier B may be interlocked due to the en- ¹⁰⁰gagement of the bead 4 with the shoulder 8, and by.reason of such arrangement the blade carrier may have a circumferential movement on ancl about the bead.

For the purpose of holding the ball 5 on ¹⁰⁵the end of the handle in frictional engagement with the seat, bottom 2 of the socket , member a compression spring S is employed. This spring preferably has a direct bearing engagement with the ball, as shown in Fig- ¹¹⁰ures 2 ancl 3, and is held in place and also compressed by the cap member C, which, in, ,

1,455,751 opening 21 formed in the central portion of the blade carrier.

In all forms of the invention it will be apparent that the distinctive feature thereof is the provision of the socket member A 7° which provides a seat for the ball 5 and also has the bead or flange 4 for engaging with the blade carrier B in such a way that the latter may have a circumferential movement about the bead 4 to .permit of the ad- U justment. Of the. blade carrier about a relatively perpendicular axis. Also, in all,forms of the invention, it will be apparent that a spring tensioned universal joint is provided wherein the absence of such screws or other .80 separately adjustable elements makes, it possible to adjust the position of the blade carrier with: facility and yet,, due to the frictional contact of the ball with the .socket, prevent accidental movement or displace- ⁱ'·’ ment which would be dangerous in the; manipulation of the razor during shaving.. It may be pointed put that the spring S. is of relatively stout or heavy gauge and it has θ been found in actual practice that the ⁰⁰ball will be held to its seat with sufficient, tightness and persisting pressure , thereby to avoid any tendency to looseness.

Any suitable and convenient means may ._ be employed for . clamping the razor blade to ^0:’ the blade carrier B. However, it is preferred to. utilize blade clips 22 .which may be pivoted to the rear corners of the blade carrier as indicated at 23 so as to swing to- . ward the edges of the blade: carrier and,¹⁰⁰overlie the: edges of the blade as well as protect the corners thereof. Clips of. this type are fully illustrated and claimed^ in my; co- _ pending application Serial No. 558,165 filed May 3,-1922, . . .' ^:. ·, ¹⁰⁵ , From,the foregoing it is thought that the features and advantages of the present improvement will be readily apparent to those skilled in the art and it will, of, course,. be. understood that changes, in the,form, pro- HO portion and minor details of construction, may. be resorted , to without departing· from the spirit of the invention or scope of the . , appended claims. . '