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US1457A - Manner of believing the collars of circular saws from the friction - Google Patents

Manner of believing the collars of circular saws from the friction Download PDF

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Publication number
US1457A
US1457A US1457DA US1457A US 1457 A US1457 A US 1457A US 1457D A US1457D A US 1457DA US 1457 A US1457 A US 1457A
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United States
Prior art keywords
friction
collar
manner
collars
believing
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Expired - Lifetime
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02—Means for moving the cutting member into its operative position for cutting
    • B26D5/04—Means for moving the cutting member into its operative position for cutting by fluid pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9403—Disc type

Definitions

  • the nature of our invention consists of the insertion of a thin semicircular plate of steel or other substance of adequate strength into the collar of the saw, which collar is countersunk to the distance from the center desired in a circular manner,of suflicient depth to receive the said plate below the surface of the collar; and which plate, being secured at both ends to the frame upon which the saw runs, receives upon its edge, the article sawed, as it is separated from the block, and before it reaches the center or thickest part of the collar, by which means all the friction is saved which would otherwise be occasioned bythe pressure of the article sawed upon the collar, while in a state of revolution, and before it passes the center or thickest part of the collar.
  • the plate being stationary, and thicker than the collar, opens the article sawed from the block, and saves any friction upon the collar or strengthener.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Description

NETE TS M. ANDREWS AND JAS. SPROAT, OE TAUNTON, MASSACHUSETTS.
MANNER OF RELIEVING- THE COLLARS OF CIRCULAR SAWS FROM THE FRICTION OCCASIONED BY THE ARTICLE SAWED.
Specification of Letters Patent No. 1,457', dated December 31, 1839.
To all fr0/tom t may concern Be it known that we, MANASSAH ANDREWS, of Bridgewater, inthe county of Plymouth, and JAMES SPRoA'r, of Taunton, in the county of Bristol, and both in the Commonwealth of Massachusetts, have invented a new and impro-ved mode of relieving the collar of a circular saw used for the purpose of sawing boards, shingles, and other like articles from the friction occasioned by the pressure of the article sawed as it is separated from the block upon the collar of the saw.
The nature of our invention consists of the insertion of a thin semicircular plate of steel or other substance of suficient strength into the collar of the saw, which collar is countersunk to the distance from the center desired in a circular manner,of suflicient depth to receive the said plate below the surface of the collar; and which plate, being secured at both ends to the frame upon which the saw runs, receives upon its edge, the article sawed, as it is separated from the block, and before it reaches the center or thickest part of the collar, by which means all the friction is saved which would otherwise be occasioned bythe pressure of the article sawed upon the collar, while in a state of revolution, and before it passes the center or thickest part of the collar. In short, the plate, being stationary, and thicker than the collar, opens the article sawed from the block, and saves any friction upon the collar or strengthener.
llhat we claim as our invention, and desire to secure by Letters Patent, is
The countersink in the collar as before described, and the insertion of the stationary plate or reliever as above described, in such manner as to receive upon its edge the article sawed, as it is separated from the block, and before it reaches the center or thickest part of the collar.
The drawing hereto annexed, correctly represents the construction and working of said improvement.
MANASSAH ANDREWS. JAS. SPROAT. Witnesses:
H. G. O. COLBY, JAMES P. ELLIS.
US1457D Manner of believing the collars of circular saws from the friction Expired - Lifetime US1457A (en)

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US1457A true US1457A (en) 1839-12-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974692A (en) * 1958-05-19 1961-03-14 Bolenbach Adolf Saw and method for tongue and groove joints

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974692A (en) * 1958-05-19 1961-03-14 Bolenbach Adolf Saw and method for tongue and groove joints

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