US1076579A - Safety-razor. - Google Patents

Description

E. N. HUMPHREY.

SAFETY RAZOR.

APPLICATION FILED DEG. 5, 1911.

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ERNEST N. HUMPHREY, OF 'NEW BRITAIN, CONNECTICUT, SSIGNOR TO THE TRAUT AND HINE MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT, A COR- POBATIDN OF CONNECTICUT.

f SAFETY-RAZOR.

To all whom it may concern.'

Be it known that I, ERNEST N. HUMPHREY, a citizen of the United Stamm-'residing at New Britain, Hartford county, State of Connecticut, have invented certain new and useful Improvements in Safety-Razors, of which the following is a full, clear, and

exact description.

My invention relates to safety razors, and particularly to a new construction whereby the several parts may be easily assembled. and dismembered.

In the drawings, Figure 1 is a perspective view of the safety razor. Fig. 2 is a plan view of the parts shown in Fig. 1, said View being relatively enlarged. Fig. 3 is a View of the under side of the head end shown in Fig. 1 with the handle removed. Fig. 4 is a central longitudinal section through the head of the razor. Fig. 5 is a view similar to Fig. 4 with the razor open.

1 represents a combined blade support and guard plate having the usual guard fingers 2 2 at opposite edges.

3 represents a threaded shank at the back of the plate 1.

4 is a handle arranged at one end to screw onto the shank 3.

5 is a plate having at its forward end a slot which overstands the threaded shank 3 and is located between the end of the handle 4 and the back of the plate 1.1' The other end of this plate 5 is hinged at 6-6 to one end of an outside keeper plate 7.

8 is a razor blade, in this instance double edged, and being of an appropriate size to properly lit between the plates 1 and 7 In this particular instance vthe positioning lugs for the blade to prevent endwise and lateral displacement thereof are formed wholly on the plate 7, although the particular arrangement of said positioning lugs is immaterial. In the preferred form shown in the drawings, these positioning lugs are formed by turning down the ends of the plate 7 to form the endA pieces 9-9a, said end pieces being provided at each edge with lugs 10-10 to properly embrace andv position the blade 8.

11 is a positioning lug on the back of the plate 1, said lug being preferably slightly 'hooked at its end and passing thro-ugh a slot in the plate 5.

12-12 are lugs at the end of the plate 1 opposite the lug 11. In this instance, two

Specification of Letters Iatent.

Application led December 5, 1911.

Patented Oct. 21,1913.

Serial No. 663,077.

of these lugs 12 are provided. The end yvall 9 of the plate 7 is recessed or perforated to receive the lugs 12-12, as shown in all of the figures excepting Fig. 6.

From the foregoing 1t will be seen that when the parts of the razor blade holder stand as shown in Fig. 5, the blade 8 may be readily inserted. As soon as this blade is in position, the plate 7 may be swung down until the recesses or perforations in the end piece 9 face up with the lugs 12. When this occurs, the plate 1 is slid, relatively to the plate 7, in a direction to cause the lugs 12 to enter the notches or recesses in the end. piece 9. It is now obvious that when the parts stand in this position, the plates 1-7 are locked together to hold the blade and cannot be unlocked until the plate 1 is slid back so as to disengage the lugs 12. To prevent this accidental slipping 'back the handle 4 is turned in a direction to clamp the plate 5 tightly between itself and the back of the plate 1.

In Fig. 4 I have shown the part-s assembled and the handle screwed partially down. In this position it will be seen that by turning the handle slightly more, the plate 5 will be clamped as aforesaid, whereupon the plate 1 cannot slide relatively to the plate 5, and since said plate 5 is securedto the end 9a of the plate 7, it follows that all of the parts are locked together securely for use.

It is obvious that all of the parts may be readily separated for the removal or cleaning of a used blade, and may be as quickly assembled for the purpose of receiving and positioning anew blade.

What I claim is:

1. In a safety razor, the combination of two plates arranged to embrace between them a blade, interlocking means for said plates, said means being moved into. interlocking position by a sliding movement of one of said plates relatively to the other in a direction parallel to theother, a member hinged to the forward one of said plates and means engaging the other of said plates and said member to prevent relative sliding movement of said two plates out of interlocking position when the same embrace a one of said plates relatively to the other in a direction parallel to the other, a member vhinged to the forward one of said two plates and means engaging the other of said two plates and said member to prevent relative sliding movement of said two plates out of vinterlocking position when the same embrace a blade ready for use, said interlocking means being formed integrally with said plates.

3. In a safety razor, the combination of two plates arranged to embrace between them a blade, interlocking means for said plates, said means being moved into interlocking position by a sliding movement .of one of said plates relative to the other in a direction parallel to the other, a member hinged to the forward one of said two plates, and means engaging the other of said two plates and said member to prevent relative sliding movement of said two plates out of interlocking position when the same embrace a blade ready for use, and blade centering means on one of said plates.

4. In a safety razor, the combination of a keeper plate having downturned projections, a uard plate havin a projection on one end, the length of sai guard plate including said projection not exceeding the distance between said downturned projections, the downturned projection adjacent to the projection on the guard plate having an opening for said last named projection, a slotted plate at the rear of said guard plate permanently connected to the other downturned projection, a screw secured to 'the' guard plate and passing through the slot infsaid slotted plate and a handle on said screw adapted to clamp said slotted plate against said guard plate.

5. In a` safety razor, a guard plate, a threaded shank at the back of said plate, a device arranged to screw onto said shank, a plate at the rear of said guard plate having a slot through which said shank passes, a

keeper plate hinged to said slotted plate at one end of said guard plate, said guard plate and keeper plate being arranged to embrace between them a blade,interlocking means at the end of they kecperplate and guard plate opposite to the aforesaid hinged connection, said interlocking means being engageable and disengageable by a sliding movement of said guard plate relatively to said slotted plate and keeper plate, the screw threaded

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