US2379863A - Holder for razor blades - Google Patents

Holder for razor blades Download PDF

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Publication number
US2379863A
US2379863A US536573A US53657344A US2379863A US 2379863 A US2379863 A US 2379863A US 536573 A US536573 A US 536573A US 53657344 A US53657344 A US 53657344A US 2379863 A US2379863 A US 2379863A
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United States
Prior art keywords
blade
jaw
holder
razor
edge
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US536573A
Inventor
Caldwell Charles William
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Individual
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Individual
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Priority to US536573A priority Critical patent/US2379863A/en
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Publication of US2379863A publication Critical patent/US2379863A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/006—Hand knives with one or more detachable blades specially adapted for using razor blades as blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
    • B24D15/10—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of safety-razor blades
    • B24D15/105—Holders therefor

Definitions

  • This invention relates to holders in which a wafer type razor blade is secured to enable the blade to be stropped or used as aknife.
  • the object of the invention is to provide such a holder which secures the blade firmly in position by a simple clamping action.
  • the invention attains this object by pressing a face of the razor blade against a supporting memberhaving an antislipping surface.
  • a hand tool adapted to hold a wafer blade for stropping by hand operation is shown in the accompanying drawing in which I Figure I is a perspectiveview of the holder with the blade clamped "therein.
  • Figure II shows the holder open for receiving or removing the blade.
  • Figure III is a cross section on IIIIII Figure I drawn to an enlarged scale.
  • the holder comprises a fixed clamp jaw 2 and a movable clamp jaw 3 made of sheet metal and lying. parallel with one another. rigid with a handle 4 and projects from one side thereof; the handle being for instance inserted into a socket 5 formed by curling a long edge of the jaw 2.
  • the jaw 3 is pivoted to jaw 2 at 6
  • the jaw' 2 is merit inits ownplane, the result would be un-f satisfactory owing to the lowco-eflicient of fric- I tion between said surfaces.
  • clamping pressurefperpendicular to the blade faceawithout being of more than moderate magnitude causes the blade to embed itself slightly in the surface l2 and the blade face to adhere to said surface thereby setting up strong tangential frictional resistance to blade movement.”
  • This re sistance is effective bothwhile the jaw 3 is being closed and while the blade is being stropped or.
  • the socket 5 provides a shoulder I3 against the razor blade may be abutted, ensuring that so that it can be swung open, while remaining parallel with jaw 2 and as shown in Figure II, to
  • Jaw 3 is retained in its clamping position, Figure 1-, by its non-pivoted end 8 being passed under an ear 9 extending from jaw 2. Said jaw 3 is somewhat bowed in edge view and is capable of elastic bending endwise, to nsure that it exerts effective clamping pressure centrally on the razor blade whenits end 8 is retained under ear 9. Its edge In is rounded outward sufficient to ensure its sliding smoothly over the' razor blade while it is being swung to its clamping position.
  • the construction described provides a desirably thin holder of very simple form, distinguished by each time a blade of standard width is housed in the holder, the projection of its outer edge I5 will always beuniform.
  • a razorflblade holder comprising a handle, a razorflblade holder
  • a movable jaw pivoted to the fixed jaw to swing into and out of a position in which it clamps the razor blade against the anti-slipping surface; and means, on the fixed jaw, for so holding saidmovable jaw in its clamping position that said movable jaw, which is initially curved convexly to; the fixed jaw, is elas tically flattened against the inserted razor blade.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Scissors And Nippers (AREA)

Description

i 1945. c. w. CALDWELL I 213793863 50mm Fork RAZOR BLAfiEs Filed May 20, 1944 Patented July 10, 1945 HO'LDER roa RAZOR BLADES Charles William Caldwell, Johannesburg, Transvaal, Union of South Africa Application May 20, 1944, Serial No. 536,573 (cram-s31) 1 Claim.
This invention relates to holders in which a wafer type razor blade is secured to enable the blade to be stropped or used as aknife.
The object of the invention is to provide such a holder which secures the blade firmly in position by a simple clamping action. The invention attains this object by pressing a face of the razor blade against a supporting memberhaving an antislipping surface.
A hand tool adapted to hold a wafer blade for stropping by hand operationis shown in the accompanying drawing in which I Figure I is a perspectiveview of the holder with the blade clamped "therein.
Figure II shows the holder open for receiving or removing the blade. 1 I I Figure III is a cross section on IIIIII Figure I drawn to an enlarged scale.
The holder comprises a fixed clamp jaw 2 and a movable clamp jaw 3 made of sheet metal and lying. parallel with one another. rigid with a handle 4 and projects from one side thereof; the handle being for instance inserted into a socket 5 formed by curling a long edge of the jaw 2. The jaw 3 is pivoted to jaw 2 at 6 The jaw' 2 is merit inits ownplane, the result would be un-f satisfactory owing to the lowco-eflicient of fric- I tion between said surfaces. I
Accordingly a piece of I double faced. friction I tape H is stuck, by its adhesive lower face, :to.
the inner face of jaw 2, and presents an exposed adhesive face l2 on which the blade is laid. The
clamping pressurefperpendicular to the blade faceawithout being of more than moderate magnitude, causes the blade to embed itself slightly in the surface l2 and the blade face to adhere to said surface thereby setting up strong tangential frictional resistance to blade movement." This re sistance is effective bothwhile the jaw 3 is being closed and while the blade is being stropped or.
used. On the other hand, upon the clamping pressure being removed by opening the jaw there is no. difficulty in lifting the blade 1 perpendicularly off the surface I2.
which the back edge M, for the time being, of
The socket 5provides a shoulder I3 against the razor blade may be abutted, ensuring that so that it can be swung open, while remaining parallel with jaw 2 and as shown in Figure II, to
enable therazor blade Tto be laid flat on jaw 2. a
Jaw 3 is retained in its clamping position, Figure 1-, by its non-pivoted end 8 being passed under an ear 9 extending from jaw 2. Said jaw 3 is somewhat bowed in edge view and is capable of elastic bending endwise, to nsure that it exerts effective clamping pressure centrally on the razor blade whenits end 8 is retained under ear 9. Its edge In is rounded outward sufficient to ensure its sliding smoothly over the' razor blade while it is being swung to its clamping position.
The construction described provides a desirably thin holder of very simple form, distinguished by each time a blade of standard width is housed in the holder, the projection of its outer edge I5 will always beuniform.
The socket .5, when rested on the strop, en-
sures a constant elevation ofthe back edge [4 of the blade and in. combination with the uniform projection of edge l5 ensures thatthe bevel angle at which the razor edge is presented to the strop,
will also be constant.
having no structural partsfor positively securing or positioning the razor blade, which can accordingly be produced at low cost. However, such materials, e. g. sheet metal, as-are suitableforthe manufacture of the jaws are smooth and hard, and if the tangential frictional adhesion between the smooth and hard jaw surfaces and the similarly smooth and hard faces of the razor blade we e relied upon to hold the blade against move- The piece of tape II is continued over the shoulder l3, to protect the back blade edge l4 said shoulder.
Iclaim:
from damage by actual contactwith the metal of A razorflblade holder comprising a handle, a
jaw fixed to said handleand providing an anti.- slipping surface for a razorblade to rest upon and also providing a shoulder for one edge of the razor blade to rest against; a movable jaw pivoted to the fixed jaw to swing into and out of a position in which it clamps the razor blade against the anti-slipping surface; and means, on the fixed jaw, for so holding saidmovable jaw in its clamping position that said movable jaw, which is initially curved convexly to; the fixed jaw, is elas tically flattened against the inserted razor blade.
w CHARLES WILLIAM CALDWELL.
US536573A 1944-05-20 1944-05-20 Holder for razor blades Expired - Lifetime US2379863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US536573A US2379863A (en) 1944-05-20 1944-05-20 Holder for razor blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US536573A US2379863A (en) 1944-05-20 1944-05-20 Holder for razor blades

Publications (1)

Publication Number Publication Date
US2379863A true US2379863A (en) 1945-07-10

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487624A (en) * 1945-12-13 1949-11-08 Catherine Lodes Safety culinary knife
US2655721A (en) * 1949-12-06 1953-10-20 Einhorn Nathan Adjustable profile scraper
US2900718A (en) * 1957-06-17 1959-08-25 Lee W Bailey Hair cutting device
US3365797A (en) * 1966-02-11 1968-01-30 Patchogue Plymouth Company Cutting tool for woven backings of synthetic material
US20190202074A1 (en) * 2018-01-02 2019-07-04 Stanley Black & Decker, Inc. Knife with Replaceable Blade

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487624A (en) * 1945-12-13 1949-11-08 Catherine Lodes Safety culinary knife
US2655721A (en) * 1949-12-06 1953-10-20 Einhorn Nathan Adjustable profile scraper
US2900718A (en) * 1957-06-17 1959-08-25 Lee W Bailey Hair cutting device
US3365797A (en) * 1966-02-11 1968-01-30 Patchogue Plymouth Company Cutting tool for woven backings of synthetic material
US20190202074A1 (en) * 2018-01-02 2019-07-04 Stanley Black & Decker, Inc. Knife with Replaceable Blade

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