US1024348A

US1024348A - Safety-razor.

Info

Publication number: US1024348A
Application number: US60531111A
Authority: US
Inventors: Jens N Lorenzen
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-01-28
Filing date: 1911-01-28
Publication date: 1912-04-23
Anticipated expiration: 1929-04-23

Description

J. N. LORENZEN.

SAFETY RAZOR.

APPLIOATION IILED JAN. 28, 1911.

1,024,348. Patented Apr. 23, 1912.

INVENTOR affigwm g 2% JENS 1\T. LORENZEN, OF FREMONT, OHIO.

SAFETY-RAZOR.

Specification of Letters Patent.

Patented Apr. 23, 1912.

Application filed January 28, 1911. Serial No. 605,311.

To all whom it may concern:

Be it known that I, JENs N. LoRnNzEN, a citizen of the United States, residing at Fremont, in the county of Sandusky and State of Ohio, have invented a new and useful Safety-Razor, of which the following is a specification.

This invention has reference to improvements in safety razors, and its object is to provide a razor of few parts adapted to firmly hold wafer blades without the use of corner guards or springs, and provide a reinforcing receiving member for the edge of the blade remote from the cutting .edge, which reinforcement coacts with the head of the razor to lock the blade in position, there being no necessity of providing the blades with permanently attached reinforcing backs, the reinforcement forming part of the body of the razor being all that is necessary.

The invention will. be best understood from a consideration of the following cletailed description, taken in connection with the accompanying drawings forming a part of this specification, with the understand-- ing, however, that while the drawings illustrate the invention in practical form, it may be otherwise embodied, without material departure from the salient features of the in vention, and, therefore, the invention is not confined to exact conformity to the showing of the drawings.

In the drawings:Figure 1 is a perspective view of the improved safety razor. Fig. 2 is a central longitudinal section thereof with some parts shown in elevation. Fig. 3 is a view similar to Fig. 1, but with the razor blade and holder removed. Fig. 4 is a perspective view of the blade holder as viewed from below. Fig. 5 is a perspective view of a wafer blade adapted to the present invention, the thickness of the blade being exaggerated for clearness of illustration.

Referring to the drawings, there is shown a handle 1 preferably made of two sections united together by a threaded stem 2 entering a threaded socket in the corresponding end of the other section, so that the handle may be made long or short as desired by the user. The handle 1 terminates in a shank 3 preferably formed in the socketed handle member, and this shank is bent to form an angle extension 4 terminating in a shoulder 5 and rivet extension 6, the shoulder 5 forming a seat for a plate 7 which at an intermediate point is depressed, as indicated at- 8, for the reception of the rivet extension 6, which after insertion through a suitable perjforation in the depressed portion 8 is headed to unite the plate 7 firmly to the angle ex- .tension 4 of the shank 3, the plate resting on the shoulder 5. Que edge of the plate 7 is formed with a slotted guard 9 bent at an angle, as is customary in holders for safety razor blades. The other edge of the plate 7 is formed with a flange 10 bent away from the blade receiving face of the plate, and at the ends of the plate the flange 10 is provided with continuations 11 returned on the flange in spaced relation thereto and extending a distance beyond the plane of the blade receiving face of the plate 7, these extenappropriate gage to provide the requisite stiffness, while the extensions 11 of the flange 10 are of appropriate length to possess moderate elasticity in order that when a force is applied to the outturned margins 12, the extensions 11 will spring slightly away from the adjacent edge of the plate 7, but will retain the normal tendency to return to their original positions.

The plate 7 is designed to receive a blade 13, shown separately in Fig. 5, this blade being what is customarily known as a wafer blade of thin steel, sharpened at one edge 14, while the rest of the blade is of substantially even thickness throughout. This blade is received in a holder 15, best shown in Fig. 4, said holder comprising a plate 16 which may have one edge 17 of ornamental shape if so desired, while the other edge is formed with extensions or tongues 18 returned on the plate 16 to constitute clips, and spaced therefrom a sufficient distance to grasp the blade 18 when introduced between the clips and the plate 16, the latter being sufficiently extended beyond the clips to overlie the greater portion of the blade, while the other face of the blade and the clips 18 are desi ned to rest upon the surface of the plate 7, the thickness of the clips 18 raising the corresponding edge of the blade, which may be termed the rear edge of the blade, from the surface of the Plate 7.

Between the clips 18, which arespaced apart a distance equal to the spacing apart of the tongues or extensions 11, there is formed a tongue 19 at approximately right angles to the plate 7 and projecting therefrom on the same side as the clips 18. This tongue is formed with an inset portion 20 and a finger piece 21 beyond the inset portion, the inset portion 20 being so shaped and spaced from the plate 16 that when the holder is in position upon the plate 7, the inset portion 20 will underride the corresponding edge of the flange 10 between the extensions 11. The relation of the inset portion 20 to the clips 18 is such that when the holder 15 is applied to the plate 7 with the razor blade 13 grasped by the clips 18, the inset portion 20 will first engage the outer face of the flange 10 between the extensions 11 with the connecting portions between the clips 18 and the plate 16, these connecting portions being suitably rounded for the purpose, engaging the outturned edges 12 of the extensions 11. Now, when a force is applied to the holder 15 tending to move'it toward the plate 7, the extensions 11 will yield in a direction away from the plate 7 until the inset portion 20 will first engage the outer of the flange 10, when the spring of the extensions 11 will cause the approach of the tongue 19 toward the flange 10, but the shape of the inset portion 20 is such that the tongue 19 does not reach the fiange lO, but is held therefrom by the inset portion 20, so that the extensions 11 are still under tension and bear with appropriate force against the junction portions of the clips 18 and plate 16. This serves to lock the blade holder to the plate 7 with the cutting edge 14 of the blade in proper relation to the guard 9; and the relation of the parts may be such that the cutting edge is held in engagement with the guard with considerable force but without injury to the cutting edge.

When it is desired to remove the blade, it is only necessary to apply force to the finger piece 21 in a direction to force the holder 15 away from the plate 7 when the elasticity of the extension 11 will permit the inset 20 of the tongue 19 to escape from beneath the flange 10, thus releasing the holder 15, which will then beremoved from the body of the razor and the blade 13 may be then withdrawn from the holder for storage or sharpening, or for the purpose of inserting a new blade.

It is to be observed that there are no springs in the ordinary sense of the term used in this device, and that the razor holder and the supporting plate are the only parts employed to hold the razor blade, all side guards being omitted, since the holder is self centering, because of the tongue-19 and the extensions 11 between which it fits. Furthermore, the blade 13 may fit easily in the holder 15, but is firmly held therein when the holder has been applied to the plate or support 7, because of the elastic gripping action of the inset 20 of the tongue 19 and of the extensions 11 of the plate or holder 7.

The divisible handle 1 adapts the razor holder to different conditions, as, for instance, when shaving under the chin with the grain, for a handle of normal length would interfere with such shaving, but by removing the outer section of the handle, that is, the section remote from the holder 7, the handle is made sufficiently short topermit or facilitate such shaving operation, while for shaving other parts of the face the removed section of the handle may be replaced.

lVhile the extensions 11 have been described as elastic, this is not mandatory, since an elasticity of the tongue 19 will answer the purpose, so that the elasticity may reside in the extensions 11, or in the tongue 19, or in both, this elastic feature being readily made obtainable, since the parts are usually made of sheet metal, which may be readily cut out and bent into appropriate shape.

Vhatis claimed is r 1. In a safety razor, a blade support having a handle fast thereto, and a blade holder readily attachable to and separable from the blade support and adapted to receive a wafer blade, the blade holder being provided with a locking member and the blade support being provided with a coacting locking portion into engagement with which the locking member of the blade holder is movable in a direction substantially perpendicular to the plane of the blade support,

the locking member on the blade holder and the coacting locking portion of the blade support constituting the sole locking means for holding the blade holder and blade to the blade support.

2. In a safety razor, a blade support having a handle permanently fast thereto and provided with a guard at one edge and spaced extensions at the other edge constituting abutments, and a blade holder adapted to'receive a wafer blade and provided with a tongue projecting therefrom intermediate ofthe length of the blade holder and at an angle thereto, theblade holder with its tongue coacting with the abutments and with a blade in said holder to constitute the sole locking means for holding the blade and blade holder to the blade support.

3. In a safety razor, a blade support having one edge provided with a flange with spaced extensions thereon returned on the flange and terminating beyond the active face of the support, and a holder for a razor blade having a tongue adapted to the space between the extensions of the flange of the support, said blade holder and its tongue coacting with the flange and flange extensions of the support to lock the holder with a blade to the support.

4. A safety razor having a blade support in the form of a plate provided at one edge with a guard and at the other edge with a flange directed away from the active face of the support and formed with return extensions in spaced relation to the flange and to each other and terminating in outturned edges beyond the active face of the support, and a blade holder comprising a plate having spaced return portions constituting clips for grasping the blade, said plate having formed thereon intermediate of the clips a tongue with an inset portion, said blade holder coacting with the return extensions of the flange of the blade support to lock the blade holder to the support by the inset portion of the flange of the blade holder.

5. In a safety razor, a blade holder comprising a body portion provided with clips returned on the body portion to embrace the edge of the blade remote from the cutting edge thereof when the blade is in the holder with the cutting edge projecting therefrom and a blade support for receiving the blade holder and a blade therein with the cutting portion of the blade in engagement with said support and with the rear edge of the blade spaced by the clips from the support, the blade holder being provided with a depending elastic locking means contiguous to and on the same side of the holder as the clips for engaging the blade support to se cure the blade holder and blade to the support.

6. In a safety razor, a blade support comprising a plate having a guard at one edge and at the other edge provided with a flange directed away from the active face of the support, said flange being provided with spaced extensions returned on the flange in spaced relation thereto and of greater length than the width of the flange, said extensions terminating in outturned portions, and a blade holder provided with spaced clips for retaining a wafer blade, and an intermediate latch member coacting with the flange and said extensions to lock the holder in place, said latch member also coacting with the returned portions of the flange to center the blade holder with relation to the blade support.

In testimony, that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

JENS N. LORENZEN.

Witnesses:

W. L. HUNT, DUCKE J OHANNSEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents, Washington, D. G."