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parts 18a 21 17a 16 12a 21 17 18 25 14 19 20 10 11 27 29 30 3-3 3-3 3-3 Fig1 Fig1 16 17 18 15 21 19 20 10 13 14 25 26 12a 22 12 A 4-4 4-4 4-4 Fig2 Fig2 17a A 12a 22 24 12 26 25 23 13 16 21 15 14 19 10 20 5-5 5-5 5-5 Fig3 Fig3 18a 25 14 19 24 18 12 26 Fig4 Fig4 18a 25 26 14 19 27 12 18 29 Fig5 Fig5 17a 16 12a 18 17 37 35 34 32 31 19 14 18a 7-7 7-7 7-7 Fig6 Fig6 18a 31 21 14 35 34 12 18 29 Fig7 Fig7 31 21 32 33 35 34 36 Fig8 Fig8

Injector Razor

PatentUS2203837

InventionRazor

FiledThursday, 21st April 1938

PublishedTuesday, 11th June 1940

InventorsLeopold Karl Kuhnl, William T. Morris

OwnerMagazine Repeating Razor Company

LanguageEnglish

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A PDF version of the original patent can be found here.

Patented June 11, 1940 2,203,837
United States Patent Office
2,203,837 Razor William T. Morris, Great Neck, New York, N. Y., and Leopold Kuhnl, Bridgeport, Conn., assignors to Magazine Repeating Razor Company, New York, N. Y., a corporation of New Jersey Application April 21, 1938. Serial No. 203,240. 4 Claims. (Cl. 30—40)

The invention relates to razors of the type adapted to be used in combination with a magazine injector such as is disclosed in United States Patent to Rodrigues No. 2,109,017, issued February 22, 1938. More particularly, the invention relates to an improved means whereby the two component parts of the razor head may be separated to permit the insertion of a blade and may be permitted to approach each other under spring pressure in order to clamp the blade in proper shaving position.

Referring to the drawing,

Fig. 1 is a view of the razor head in front elevation and including the injector magazine in position for insertion in the head preparatory to the transfer of a blade;

Fig. 2 is an end view of the razor head of Fig. 1;

Fig. 3 is a view in section of the razor head on the line 3—3 of Fig. 1;

Fig. 4 is an enlarged view on the line 4—4 of Fig. 2;

Fig. 5 is an enlarged view on the line 5—5 of Fig. 3;

Fig. 6 is a view in elevation of a razor head showing a modified form of injector mechanism;

Fig. 7 is a view in section on the line 7—7 of Fig. 6 and also showing the injector finger inserted in the razor head and the cam slide withdrawn;

Fig. 8 is a detailed view of the cam slide and injector finger of the modified form.

Describing what is shown in the drawing, a shank 10 mounted in the handle 11 terminates in a blade clamping member which includes the back plate 12 and the overhanging plate 12a and is provided with an eye 13 which may be conveniently struck out of it by conventional stamping methods. The eye serves as a hinge member for a blade platform member comprising the plate 14 terminating in a blade platform 15, the blade platform in turn terminating in a guard 16 and having mounted thereon blade stops 17 and 17a. The plate 14 which serves as a support for the blade platform is also provided with a grooved portion 18 which serves as a cam member for parting the blade clamp 12 and the blade platform 15, as will presently be explained.

Pivotally mounted at 20 on the shank 10 is a spring latch 19 formed to a bend 21,and it is obvious that as the spring latch is swung on the pivot 20 to the position shown in Figs. 1 and 2, it will yieldingly urge the blade platform member toward the shank 10 and likewise the blade platform 15 toward the back plate 12. When the spring latch is swung clear of the plate 14, the latter is free to swing forward on its hinged connection above referred to and free the blade A from the clamping pressure exerted by the blade clamping member and the blade platform member, it being understood that the relationship between these two members is such that, when the head is “closed”—i. e., when the parts are in the position shown in Figs. 1 and 2, the blade is tightly clamped and the shoulder 22 drives the blade edge into abutment with the stops 17 and 17a.

It will be observed that the shank 10 abruptly curves rearwardly to a slight extent as indicated by the numeral 23 (see Fig. 3), thus, in cooperation with the plate 14, forming a slot 24 between the plate 14 and the shank. In this slot is carried a slide 25 provided with a cam 26 which, when the slide is fully “in” as shown in Fig. 1, registers with the grooved portion 18, and since in this position it exerts no force tending to separate the plate 14 from the shank 10, the blade A is firmly pressed against the stops 17 and 17a and the plate 12a bears down firmly on the blade itself. With the parts in this relationship (which is shown in Fig. 2), the slide is not bearing on either the plate 14 or the shank 10, and in fact it is purposely made thin enough so that this will not take place when a blade of the proper width is in shaving position as shown in Fig. 2. Obviously, however, if the slide is driven rearwardly by the insertion of the magazine finger 27 or any other agency, the cam 26 will force the plate 14 away from the shank 10 and likewise the blade platform 15 away from the back plate 12, thus increasing the fore and aft width of the channel in which the blade is contained and also its height.

Since the primary purpose is a razor head of improved construction into which the blade can be transferred by an injector magazine, we show such a magazine 29 provided with the aligning finger 27 already mentioned. The injector magazine is essentially similar to the injector magazine shown in the above-mentioned United States Patent to Rodrigues No. 2,109,017, issued February 22, 1938, and requires no explanation further than to say that, when properly lined up with the razor head by inserting the aligning finger 27 in the slot 24 to its full length and operating the injector plunger 30, a blade is transferred from the magazine into the blade channel already referred to, any blade already in the blade channel being ejected therefrom by the blade being transferred. In this case, however, we prefer (which is one of the features of the invention) that the widening and heightening of the blade channel through the forward swinging of the plate 14 and in opposition to the spring latch 19 shall be effected by the slide operating against the plate 14 through the cam 26. In other words, as the aligning finger is inserted in the slot, it drives ahead of it the slide 25, which through its cam 26 opens the blade channel preparatory to the transfer thereto of a blade from the magazine. After the blade has been transferred by a stroke of the plunger 30, the aligning finger 27 of the injector magazine may be withdrawn from the slot, leaving the slide 25 retracted as shown in Fig. 5. Following withdrawal of the aligning finger, the slide may be restored to the position shown in Fig. 1 by a simple movement of the finger upon the completion of which movement the parts are in the position shown in Fig. 2 with the blade A firmly abutting the stops and firmly clamped between the overhanging plate 12a and the blade platform. Another use to which the slide may be put is to produce a slight separation of the parts without making use of the injector finger. This is done by simply operating it by seizing the thumb piece 18a and withdrawing the slide.

In the modification shown in Figs. 6, 7, and 8, we have provided a slide 31 similar to the slide 25 except that the slide 31 is brought out nearer to the mouth of the slot 24 and is provided with a hole 32 opening to the end of the slide as known at 33. The aligning finger 34 of the injector magazine is similar to the aligning finger 27 except that the aligning finger 34 terminates in a disc 35, extending from the end of the finger and connected by a narrow neck 36 to the finger itself. The hole 32 and the disc 35 form an interlocking couple whereby when it is desired to transfer a blade, the disk 35 may be inserted in the hole 32, and the slide 31 driven to retracted position. In order to permit access to the hole 32 in the slide, the plate 14 is cut away as shown at 37. After a blade has been transferred to the blade channel, withdrawal of the magazine finger 34 draws the slide with it to the position shown in Fig. 6, and since the plate 14 is thereby released, the transferred blade is clamped securely in the blade channel as in the preferred construction.

It is recognized that the present invention may be embodied in other constructions than those herein specifically illustrated, and therefore it is desired that the constructions disclosed shall be considered as illustrative and not in a limiting sense.

We claim:

1. A razor comprising two members having yielding connection one with the other and shaped to form a channel for accommodating a blade between them, and a permanently installed slide interposed operatively between them and provided with a cam adapted when moved to one position to permit one of the members to approach the other and clamp a blade in the channel and when moved to another position to cause one of the members to recede from the other and thus separate them sufficiently to permit of the insertion of a blade in the channel.

2. A razor comprising two members having yielding connection one with the other and shaped to form a channel for accommodating a blade between them, blade stops on one of the members and a permanently installed slide interposed operatively between the members and provided with a cam adapted when moved to one position to permit one of the members to approach the other and clamp a blade in the channel and in abutment with the stops, and when moved to another position to cause one of the members to recede from the other and thus separate them sufficiently to permit of the insertion of a blade in the channel.

3. A razor comprising a blade platform and a blade clamping member having resilient connection therewith, a permanently installed slide interposed operatively between the blade platform and the blade clamping member and provided with a cam adapted when moved to one position to permit the blade clamping member to approach the blade platform and clamp a blade between members, and when moved to another position to cause one of the members to recede from the other and thus separate them sufficiently to permit of the insertion of a blade in the channel, and an injector magazine provided with an aligning finger adapted to move the slide to its last named position.

4. A razor comprising a blade platform and a blade clamping member having resilient connection therewith and a permanently installed slide interposed operatively between the blade platform and the blade clamping member and provided with a cam adapted when moved to one position to permit the blade clamping member to approach the blade platform and clamp a blade between the members, and when moved to another position to cause one of the members to recede from the other and thus separate them sufficiently to permit of the insertion of a blade in the channel, an injector magazine provided with an aligning finger, the aligning finger and the slide being provided with means for detachably coupling them together so that the slide may be moved under the control of the injector magazine to any position within its range of motion.

William T. Morris.

Leopold Kuhnl.