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Frameback Razor

PatentUS792399

InventionRazor

FiledFriday, 7th April 1905

PublishedTuesday, 13th June 1905

InventorWilliam R. Christie

LanguageEnglish

CPC Classification:   
B26B21/06
  • B26B21/06
    Safety razors with fixed blade, e.g. with moulded-in blade
  • B
    Performing Operations; Transporting
  • B26
    Hand Cutting Tools; Cutting; Severing
  • B26B
    Hand-Held Cutting Tools Not Otherwise Provided For
  • B26B21/00
    Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
  • B26B21/02
    Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving unchangeable blades

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

No. 792,399.Patented June 13, 1905.
United States Patent Office.

William R. Christie, of New York, N. Y. Razor.
SPECIFICATION forming part of Letters Patent No. 792,399, dated June 13, 1905. Application filed April 7, 1905. Serial No. 254,284.

To all whom it may concern:

Be it known that I, William R. Christie, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented anew and Improved Razor, of which the following is a full, clear, and exact description.

The purpose of the invention is to provide a razor of the ordinary type which is furnished with an exceedingly thin removable blade and to so construct the razor that the blade can be quickly and conveniently introduced in its holder and securely fastened to place, the blade when not needed being inclosed in the handle in the customary manner.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is aside elevation of the improved razor, the blade being in partly-open position and the locking-sleeve being partly removed from the holder. Fig. 2 is a sectional side elevation of the holder and a side elevation of the blade in position to be removed from the holder, the normal position of the blade appearing in dotted lines. Fig. 3 is a plan view of the holder with the blade removed; and Fig. 4 is a vertical section through the holder and blade, the parts being shown locked together and the section being taken practically on the line 4 4 of Fig. 2.

The razor practically consists of a handle A of the conventional type, a holder B, pivotally attached to the handle, a blade C, adapted to be carried by the holder, and a locking-sleeve D for the holder.

The holder B consists of a shank 10, which is pivoted in the handle A, and the said shank is provided with a curved heel 11 and two parallel arms 12, which are attached to or constitute an integral portion of the shank at its forward end. These arms are disconnected throughout their length and are segmental in cross-section, their inner or opposing faces being flat and their outer faces usually convexed, as shown in Fig. 4. At the outer end portions of one arm 12 a lug 13 is formed upon its inner face, as is shown in Figs. 2, 3, and 4, and when the arms are brought close together the lug 13 extends into a correspondingly-shaped depression 14 in the opposing arm 12, as is clearly shown in Fig. 4. In the further construction of the holder where the arms 12 meet the shank 10 an angular recess 15 is produced in the shank, extending through from the top to the bottom, as is shown best in Fig. 2.

The blade C is flat and is made from very thin steel, being practically in the form of a parallelogram and of a thickness of about ten-thousandths to five-thousandths of an inch; but at the upper portion of its rear end an angular nose 16 is formed, adapted to fit in the said recess 15. In the forward end portion of the blade an aperture 17 is made, through which the lug 13 is passed when the blade is in position in the holder. In placing the blade in position in the holder it is slipped up between the arms 12, and the rear end of the blade is pressed rearward until the nose 16 is seated in the recess 15, and then the lug 13 is made to enter the aperture 17 in the blade. The locking-sleeve D is adapted to hold the arms 12 in close engagement with the blade and locked thereto. This locking-sleeve is made of comparatively thin, preferably spring, metal and is open at its ends and at its bottom. The upper part of the interior of the sleeve is oblong, and the lower portion is practically a slot having straight walls, as is shown in Fig. 4, and the lower portion of the sleeve is of sufficient depth to amply support the thin blade and hold it parallel with the slotted portion of the sleeve. After the blade C has been placed in the holder in the manner described the sleeve B is slid over the arms 12, as is shown in Figs. 1 and 4, drawing said arms together, and the walls of the slotted portion of the sleeve will at such time engage snugly with the blade C at each side adjacent to its back.

Under the foregoing construction it will be observed that a convenient razor is obtained, but one wherein the blade is very thin and is removable and replaceable, enabling the operator at any time to conveniently and quickly substitute a perfect blade for a damaged one.

Having thus described my invention, I claim as new and desire to secure by Letters Patent—

1. In razors, a holder provided with parallel arms, a thin blade removably located between the arms, means for supporting the blade between the arms, and a locking-sleeve constructed to slide over the arms and the back section of the blade.

2. In razors, a holder provided with parallel arms and a recess at the inner end portion of the arms, a thin blade removably located between the arms and having a nose at its rear end adapted to fit in said recess, and a locking-sleeve mounted to slide upon and having clamping relation to the said holder.

3. In a razor, a handle, a holder pivotally mounted in the handle, the said holder comprising a shank and parallel arms extending from the shank, separated throughout their length, said arms having straight inner faces and convexed outer faces, the shank being provided with an angular recess where it meets the said arms, one arm being provided with a lug upon its inner face and the other arm with a corresponding recess to receive the lug, a blade located between the said arms, which blade is of thin metal and is provided with an aperture to receive the said lug and with an angular nose at one end to enter the said recess, and a locking-sleeve adapted to slide upon and have clamping relation to the said arms and back section of the said blade, as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

William R. Christie.

Witnesses:

J. Fred. Acker,

Jno. M. Ritter.