US1161689A - Safety-razor. - Google Patents

Description

J. KAUFMAN.

SAFETY RAZOR.

APPLICATION man was. 1911.

1,161,689. Patented Nov. 23, 1915.

mean s'rATEs PATENT FFICE.

JOSEPH KAUFMAN, OF NEW YORK, N. Y.

SAFETY-RAZOR Application filed April 8, 1911.

Razors; and I do hereby declare the fol-.

lowing to be a full, clear, and exact description of the mventwmsucl aswill enable otheis skilled in the art to which it and relative "cheapness of construction, and particularly designed toenable ready application and removal of the blade.

, \Vitlithis and other ob ects in view, as

will in part be stated, and in part become obvious, the invention comprises certain novel constructions, combinations andarrangements of parts as herein specified and claimed.

In the accompanying drawing, Figure 1 is a perspective view of a razor embodying the features of the invention, with the cap plate in a closed condition. Fig. 2 is a similar view of the same taken from a point of observation in the rear. Fig. 3 is a top plan view thereof with the cap in an open condition. Fig. -i is an end view of the parts as seen in Fig. 3. Fig. 5 is a view in front elevation with the cap in a partly open condition and the blade removed. Fig. 6 is a transverse section taken approximately on the plane indicated by line 6, 6, of Fig. 3. Fig. 7 is a similar view of the same with the cap partly closed. Fig. 8 is a top plan view with the cap in its closed condition. Fig. 9 isa cross-section therethrough on the plane indicated by line 9, 9, of Fig. 8. Fig. 10 is a view in rear elevation.

Referring to the drawing by numerals, 1 indicates the blade supporting frame of a safety razor which may assume various forms, but preferably consists of a plate which may be'e'ither solid or of the open work type, and along its front edge is formed with the usual guard 2, adjacent to which and at each end of the plate are the upstanding lugs or detents 3, 3. The edges Specification of Letters Patent.

Patented Nov. 23, 1915.

Serial No. 619,818.

of the frame 1 are provided with the usual upstanding and inwardly turned retaining clips 4, 1, for the blade 5.

Depending from the blade sustaining frame 1 isa back or handle receiving plate (5 to which latter the handle 7 is screwed or otherwise preferably detachably connected. The back plate 6 is of less length than the frame 1, leaving projecting portions of frame 1 beyond the ends of plate (5, and the material of frame 1, adjacent each end of the plate (3, is extended in the form of a relatively narrow strip and bent into an eye 8, lying outside the transverse planes of plate 6 but within the transverse planes of frame 1. A cap or cover plate 9 is disposed to at times cover the major portion of the blade 5 and to have the front edge of said cover or cap plate 9 extend along adjacent to the cutting edge of the blade 5, and to engage the blade for firmly retaining the same in its operative position on the frame 1. The rear portion of the cap plate 9 is bent or curved downwardly as at 9'. The material of the plate 9 adjacent each of its two rear corners is cut away forming notches 10, 10, for leaving longitudinal projecting portions 11, 11, which may be smoothed or rounded off into cylindrical portions, and which are disposed to extend through the eyes 8 and to form pintles serving as hinge supports and connections for the cap 9 with respect to the blade carrying frame 1. By providing the notches 10, the cap plate 9 may be of the same length as frame 1 without pintles 11 or eyes 8 lying or extending laterally beyond or outside of the transverse planes of the cap plate 9- and frame 1.

The blade sustaining frame 1 is formed at its rear portion and substantially midway of its length with an opening 12 and the plate 6, at its upper portion, that is the pen tion adjoining and preferably formed integral with the plate or frame 1, is formed with a vertical notch 13 which opens into the opening or recess 12. A spring plate 14 is fixed to the plate 6 at the front face thereof and is formed with an upstanding spring tongue 15 extending alon and in front of the notch 13 and pro ecting upwardly through the opening 12. A tongue or extension lfi'pro ects from the rear edge of the cap 9 in position for at times engaging the spring ton e 15, for pressing the same forward y an thus sub ecting the cap to the spring pressure of said spring tongue. The projection 16 is disposed for traveling along the tongue 15 with the free end of the projection extending into and moving along the notch 13, and in the operation of closing the cap plate 9 the pressure of the spring tongue 15 against the projection 16 first resists the closing action of the cap or cover plate 9 and continues to resist the same up to the dead center point, that is the positionwherethe projection 16 is in direct line with the pintles 11 relative to the pressure exerted by tongue 15, so the pressure thusexerted'is delivered on a straight line-along the projection '16 to the edge of the-plate 9 and thence directly-to the pintles, at which p'oin't'the pressure-of the spring is practically. neutral so far as the effective movement ofthe cap plate is concerned. Then, immediately after passing this point,'this spring tongue 15, which has heretofore been moved forwardly by the projection 16, is allowed to move rearwardly and thus exerts Cpressure forcing the projection 16 rearwar ly, .and 'consequently forcin that part of cap late 9 abovethe'pint es forwardlyuntil't e cap plate mass to its finalposition and ,is retaincd un er the s ring ressure in engagement with the bla e 5, tie' tongue 1,5 mamtaining its spring pressure engagement with the projection 16 as long as the cap remains closed.'"In opening the cap, aconver'se action takes place, and the opening movement of the cap is resisted by the spring until, the dead center point is reached, after which the cap is thrown openvby the pressure of the spring until the cap swings sufiiciently' for causing the projection 16 to entirely. leaveits contact with the spring tongue.

It is to be observed that by the particular disposition of the eyes and pintles which make up the hinges for the .cap plate 9, the said plate may be swun to an open position lying entirely back of tie plate 6 and out of the path of movement of the blade 5 when being positioned or removed. This is a .Very desira le feature both for facilitating the assemblage and disconnection of parts and for facilitating cleansing of the .razor.

Fixed to the under face of the cap plate 9 is a spring 17 having .a pendent fin er 18 disposed to engage the back of the blade 5 for ressin the same forwardly and firmly retainin t e blade in' place durin operation. T 1e finger 18 is also dispose for engagin as best seen in Fig. I, the back of the -b ade and forcing the blade forwardly toits proper position when the o erator has carelessly inserted the blade and .failed to ress' the.. same entirely. into position. finger 18, as the cap'plate" isbeing closed,

engages the blade and forces it home, and retains the blade in its proper position by the coiiperating spring pressure of the finger itself and the spring 15.

Y \Vhat I claim is:

1. In a razor, the combination with a razor frame having a blade supporting portion,'of a cap pivoted to the rear portion of the frame and adapted to swing from a rearwardly outstanding open position to a forwardly extending, blade-covering, closed position, a plate spring fixed to the rear of the frame and having its rear face substantially fiat and straight and disposed substantially at rightangles to the plane of the blade supporting portion, the spring extending past the pivot and adjacent thereto, and a pro jection extending from the cap substantially at right angles to the main portion of the cap and beyond the pivot toward the rear face of the spring a greater distance than that'between the pivot and the spring for causing the projection to engage the rear face of the spring and to deflect the spring during movement of the cap, the projection being of a length and location relative to the location of the spring adapting the projection to be swung upward past the spring and above the'horizontal plane of the pivot to-a position free of the spring when the cap is swung to its open position and to be mo'ved' downward past the horizontal plane of the pivot and in flexing en agement with the sprin when the cap is'c losed for leaving the cap ree when open and for maintaining a spring pressure on the cap when, closed exerted in acap-closing direction.

2. In a razor, the combination, with a frame, of a cappivoted to the rear portion of the frame and adapted to swing p'ivotal'ly from a closed position above the frame to a fully open position outstanding rear wardly from the frame, means for springing the cap from a partly closed to a closed position and for retaining the cap closed under spring pressure, said springin means being adapted to leave the cap free 0'? spring pressure when the cap is in its fully .open position, and a blade-pressing spring fixed to the cap and pendent from the under face thereof when the cap is closed in positionfor engagin a blade on the frame and exerting forward y directed spring pressure against such blade.

In testimony \vhereof'I afiix my signature in presence of two witnesses.

JOSEPH KAUFMAN. Witnesses:

FRANCIS M. CROSSMAN, JULIUS Bun. MEs UrrAs.

Copies of thh lpa terit'n a'y be eobteined for'nve cents each, by addressing the Commissioner of latents.

Washington, D. 0.

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