US1357956A - Rotary razor-strop - Google Patents

Rotary razor-strop Download PDF

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Publication number
US1357956A
US1357956A US353972A US35397220A US1357956A US 1357956 A US1357956 A US 1357956A US 353972 A US353972 A US 353972A US 35397220 A US35397220 A US 35397220A US 1357956 A US1357956 A US 1357956A
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Prior art keywords
frame
blade
strop
razor
sides
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Expired - Lifetime
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US353972A
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Cooke William James
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Individual
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    • 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
    • B24D15/08—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors
    • B24D15/085—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors with reciprocating whetstones
    • B24D15/087—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors with reciprocating whetstones having a crank handle

Definitions

  • This invention relates to razor stro s of the rotary type, and provides a. strop W ereby both sides of the edge of a razor blade are stropped simultaneously.
  • Strops have been made whereby razor blades withtwo edges-have been stropped simultaneously upon the same side only of the blade. Such a method of strapping is mechanically defective, and results in a bur being left upon both edges.
  • the invention comprises rollers covered with leather or other suitable abrading surfaces, and arranged parallel to each other n a main frame or casing.
  • the rollers are geared together by 5 ur wheels and are rotated by a handle w ich is prevented from being turned the wrong way by a ratchet wheel and pawl.
  • One roller is mounted in bearings fixed to the sides of the main frame, and the other roller is mounted in a frame ivoted to the interior of the main frame.
  • a tension spring attached at one end to the pivoted frame, is attached at its other end to a screw, which passes through the end of the frameand is provided with a thumb nut.
  • the blade to be sharpened is held in a clip, which rests upon a leather strip let into recesses formed in the tops of the sides of the main frame.
  • Fig. 5 is a perspective view of the clip.
  • the rollers 1 and 2 having abrading sur- Speciflcation of Letters Patent.
  • the spindle 4 is mounted in the sides of a main frame 8 and is provided with a crank handle 9.
  • the spindle 5 is mounted in a frame 10 pivoted upon a pin 11, and the ends of the said spindle 5 project into slots 12 formed in the sides of the frame, the center from which the slots are struck co-incident with the center of the pin 11.
  • a tension spring 13 is attached at one end to the bottom of the frame 10, and at its other end is attached to a screw 14, which passes through the end of the frame 8, where the said screw is provided with a thumb nut 15.
  • the blade 16 to be sharpened is held in a clip comprising a bar 17 having a recess wherein the top of the said blade may lie.
  • the blade is retained by pins 18 projecting from the face of the recess, and adapted to engage notches formed in the ends of the blade.
  • a keeper 19, pivoted at one end to the bar 17 by a pin 20, is adapted to be retained at its other end by a catch 21 fixed to the bar 17.
  • the blade 16 having been placed in the re- ,cess, en aged by the pins 18, and retained by the eeper 19, the clip is placed upon bearing surfaces 22 of leather let into recesses 23 formed in the tops of the frame 8, the rollers 1 and 2 having been previously separated by turning the frame 10 on its pivot pin 11, to allow the edge of the blade to pass between the rollers.
  • the frame 10 is then released, allowing the spring 13 to press the rollers 1 and 2 against the edge of the blade, and the spur wheels 6 and 7 to mesh together.
  • the handle 9 is then turned clockwise, while the clip and blade are held in position, the wheels 6 and 7 turning the roller 2 anti-clockwise. The edges on both sides of the blade are thus shar ened simultaneously and without leaving ur.
  • the clips are made to suit-blades of diifer- Patented Nov. 9, 1920. Application filed January 26, 1920. Serial No. 353,972. I
  • a razor stropping machine comprising an inclosing casing, a stropping roller mounted on a shaft journaled in the sides of said casing, a second roller mounted on a shaft having its ends projecting through slots in the casing, a frame Within the caslng having a horizontal base and uprights in which one for the frame extending through the casing and a tension device attached to the middle of the horizontal base of the frame and 15 one end of the casing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

W. J. COOKE.
ROTARY RAZOR STROP.
APPLICATION FILED JAN. 26. 1920.
1 ,357,956, Patented Nov. 9, 1920.
, UNITED STATES PATENT OFFICE.
'WILLIAM JAMES COOKIE, OF AUCKLAND, NEW ZEALAN'D, ASSIGNOR OF ONE-TENTH T0 CHRISTOPHER- DAVIS, ONE-TENTH TO WILLIAM JOHN FOO'IE, ON E-TENTH TO' VILLIAM PEARCE, ONE-TENTH T0 FANNY GOOKE, AND ONE-TENTH TO THOMAS ASHTON, ALL OF AUCKLAND, NEW ZEALAND.
ROTARY RAZOR-STROP.
To all whom it may concern.-
Be it known that I, WILLiAM JAMES CooKE, a citizen of the Dominion of New Zealand, and residin at 56 Edenvale road, ZAuckland, in the Frovincial pflstrlct :of Auckland, New Zealand, a sub ect of the King of Great Britain and Ireland, have 1nvented certain new and useful Improvements in Rotary Razor-Strops, of wh ch the following is a specification.
This invention relates to razor stro s of the rotary type, and provides a. strop W ereby both sides of the edge of a razor blade are stropped simultaneously.
Strops have been made whereby razor blades withtwo edges-have been stropped simultaneously upon the same side only of the blade. Such a method of strapping is mechanically defective, and results in a bur being left upon both edges.
-The invention comprises rollers covered with leather or other suitable abrading surfaces, and arranged parallel to each other n a main frame or casing. The rollers are geared together by 5 ur wheels and are rotated by a handle w ich is prevented from being turned the wrong way by a ratchet wheel and pawl. One roller is mounted in bearings fixed to the sides of the main frame, and the other roller is mounted in a frame ivoted to the interior of the main frame.
he spindle of the said other roller projects through curved slots in the sides of the main frame. A tension spring, attached at one end to the pivoted frame, is attached at its other end to a screw, which passes through the end of the frameand is provided with a thumb nut.
The blade to be sharpened is held in a clip, which rests upon a leather strip let into recesses formed in the tops of the sides of the main frame.
The invention may be advantageously and conveniently carried into practice as illus trated in the accompanying drawing, wherein Figure 1 is a side elevation, V
Fig. 2 a lan,
gig. 3 a ongitudinal sectional elevation, an
- Fig. 4 a cross section of the strop,
Fig. 5 is a perspective view of the clip. The rollers 1 and 2 having abrading sur- Speciflcation of Letters Patent.
faces3, are fixed to spindles'4 and 5 respectively, and are normally geared together by spur wheels 6 and 7; The spindle 4 is mounted in the sides of a main frame 8 and is provided with a crank handle 9. The spindle 5 is mounted in a frame 10 pivoted upon a pin 11, and the ends of the said spindle 5 project into slots 12 formed in the sides of the frame, the center from which the slots are struck co-incident with the center of the pin 11.
A tension spring 13 is attached at one end to the bottom of the frame 10, and at its other end is attached to a screw 14, which passes through the end of the frame 8, where the said screw is provided with a thumb nut 15.
The blade 16 to be sharpened is held in a clip comprising a bar 17 having a recess wherein the top of the said blade may lie. The blade is retained by pins 18 projecting from the face of the recess, and adapted to engage notches formed in the ends of the blade. A keeper 19, pivoted at one end to the bar 17 by a pin 20, is adapted to be retained at its other end by a catch 21 fixed to the bar 17. A ratchet wheel 24 on the spindle 4 and a spring pawl 25 pivoted on the main frame 8, prevent the handle 9 from being turned the wrong way.
The blade 16 having been placed in the re- ,cess, en aged by the pins 18, and retained by the eeper 19, the clip is placed upon bearing surfaces 22 of leather let into recesses 23 formed in the tops of the frame 8, the rollers 1 and 2 having been previously separated by turning the frame 10 on its pivot pin 11, to allow the edge of the blade to pass between the rollers. The frame 10 is then released, allowing the spring 13 to press the rollers 1 and 2 against the edge of the blade, and the spur wheels 6 and 7 to mesh together. The handle 9 is then turned clockwise, while the clip and blade are held in position, the wheels 6 and 7 turning the roller 2 anti-clockwise. The edges on both sides of the blade are thus shar ened simultaneously and without leaving ur.
The clips are made to suit-blades of diifer- Patented Nov. 9, 1920. Application filed January 26, 1920. Serial No. 353,972. I
' The tension of the spring 13 is regulated "of the said roller shafts is journaled, a pivot by the nut 15.
W hat I do claim and desire to secure by Letters Patent of the United States is A razor stropping machine comprising an inclosing casing, a stropping roller mounted on a shaft journaled in the sides of said casing, a second roller mounted on a shaft having its ends projecting through slots in the casing, a frame Within the caslng having a horizontal base and uprights in which one for the frame extending through the casing and a tension device attached to the middle of the horizontal base of the frame and 15 one end of the casing.
In testimony whereof I aflix my signature in the presence of two witnesses.
WILLIAM JAMES COOKE. Witnesses:
JAMES HAMILTON CAMPBELL HUNTER, WILLIAM PINOHES.
US353972A 1920-01-26 1920-01-26 Rotary razor-strop Expired - Lifetime US1357956A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2461161A (en) * 1947-05-02 1949-02-08 James T King Razor blade sharpener
US2495910A (en) * 1947-09-05 1950-01-31 William W Syfert Single-edge razor blade sharpener
US2562618A (en) * 1947-09-03 1951-07-31 Chrysler Corp Grinding wheel knife sharpening attachment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2461161A (en) * 1947-05-02 1949-02-08 James T King Razor blade sharpener
US2562618A (en) * 1947-09-03 1951-07-31 Chrysler Corp Grinding wheel knife sharpening attachment
US2495910A (en) * 1947-09-05 1950-01-31 William W Syfert Single-edge razor blade sharpener

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