US877764A - Shears for cutting iron. - Google Patents

Shears for cutting iron. Download PDF

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Publication number
US877764A
US877764A US1907400021A US877764A US 877764 A US877764 A US 877764A US 1907400021 A US1907400021 A US 1907400021A US 877764 A US877764 A US 877764A
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Prior art keywords
shears
bars
cutting
secured
standards
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Expired - Lifetime
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William A Gahler
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Individual
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Priority to US1907400021 priority Critical patent/US877764A/en
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Classifications

    • 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
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/16—Cam means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D17/00—Shearing machines or shearing devices cutting by blades pivoted on a single axis
    • B23D17/02—Shearing machines or shearing devices cutting by blades pivoted on a single axis characterised by drives or gearings therefor
    • 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
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8798—With simple oscillating motion only
    • Y10T83/8804—Tool driver movable relative to tool support
    • Y10T83/8805—Cam or eccentric revolving about fixed axis

Definitions

  • This invention contemplates certain new and useful improvements in that type of shears adapted to cut iron or other metal and the object of the invention is a set of shears of this type which may be easily operated by hand to shear metallic plates, bars, bolts and the like.
  • Figure 1 is a perspective view of my improved shears.
  • Fig. 2 is a transverse sectional view thereof, and
  • Fig. 3 is a detail perspective view of one of the cutting jaws.
  • the numeral 1 designates a base board or plate, to which two standards 2 are secured.
  • a bolt 3 is secured between the standards and two bars 4 and 5 are mounted or fulcrumed near one end on said bolt, the other ends of said bars being adapted to rest on the base plate 1.
  • the front ends of these bars constitute the cutting jaws 6, the contiguous faces of which are rabbeted as shown and cutting blades 7 are secured in the said rabbeted portions.
  • the bar 4 at its rear end is vertically extended as indicated at 8 and a cam lever 9 is pivoted to the innerface of said extended portion, with the cam impinging against the rear end of the bar 5.
  • a bolt 10 is secured to the standards below the bolt 3 and forms a brace for said standards 2, and also secures a dog 11 to one of them.
  • This dog 11 is formed with an angularly disposed arm 12 which is designed to hold the metal to be sheared, between the cutting jaws 6.
  • the hereindescribed shears for cutting metal comprising a base plate, two standards secured thereto, a bolt secured between the standards, two bars fulcrumed near one end on said bolt and adapted to have their other ends rest on the base plate, thecontiguous faces of said bars being rabbeted near their front ends, cutting blades secured in the rabbeted portions, the rear end of one of said bars being vertically extended, and a cam lever pivoted to the extended portion with the cam impinging against the rear end of the other bar as and for the purpose set forth.
  • shears comprising a base plate, two standards secured thereto, two bars fulcrumed near one end between said standards and ada ted to have their other ends rest on the ass plate, cuttin blades secured to the contiguous faces of sai bars near the front ends thereof, the rear end of one of said bars being upwardly extended, and a cam let er pivoted to the extended portion with the cam impinging against the rear end of the other bar as and for the purpose set forth.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Description

No. 877,764. PATENTED JAN. 28, 1908. W. A. GAHLER.
SHEARS FOR CUTTING IRON.
APPLICATION FILED 001131, 1907 hwantoz 19mm A 6].
WILLIAM A. GAHLER, or .TANESVILLE, MINNESOTA.
SHEARS FOR CUTTING IRON.
Specification of Letters Patent.
Patented Jan. 28, 1908.
Application filed October 31. 1907. Serial No. 400.021-
To all whom it may concern:
Be it known that I, WILLIAM A. GAHLER, citizen of the United States, residing at J anesville, in the county of Waseca and State of Minnesota, have invented certain new and useful Improvements in Shears for Cutting Iron, of which the following is a specification.
This invention contemplates certain new and useful improvements in that type of shears adapted to cut iron or other metal and the object of the invention is a set of shears of this type which may be easily operated by hand to shear metallic plates, bars, bolts and the like.
With this and other objects in view as will more fully appear as the description proceeds, the invention consists in certain constructions and arrangements of parts that I shall hereinafter fully describe and then point out the novel features thereof in the appended claims.
For a full understanding of the invention and the merits thereof and to acquire a knowledge of the details of construction, reference is to be had to the following description and accompanying drawings in which:
Figure 1 is a perspective view of my improved shears. Fig. 2 is a transverse sectional view thereof, and Fig. 3 is a detail perspective view of one of the cutting jaws.
Corresponding and like parts are referred to in the followin description and indicated in all the views of the drawings by the same reference characters.
Referring to the drawings the numeral 1 designates a base board or plate, to which two standards 2 are secured. A bolt 3 is secured between the standards and two bars 4 and 5 are mounted or fulcrumed near one end on said bolt, the other ends of said bars being adapted to rest on the base plate 1. The front ends of these bars constitute the cutting jaws 6, the contiguous faces of which are rabbeted as shown and cutting blades 7 are secured in the said rabbeted portions.
The bar 4 at its rear end is vertically extended as indicated at 8 and a cam lever 9 is pivoted to the innerface of said extended portion, with the cam impinging against the rear end of the bar 5.
A bolt 10 is secured to the standards below the bolt 3 and forms a brace for said standards 2, and also secures a dog 11 to one of them. This dog 11 is formed with an angularly disposed arm 12 which is designed to hold the metal to be sheared, between the cutting jaws 6.
By operating the cam lever 9, the bar 4 is rocked to close the cutting aws 6. There is a decided mechanical advantage gained by this combination of the cam with the longer arm of the arm 4 and the jaws 6 are closed with sufficient force to easily and quickly shear a thick steel bar.
Having thus described the invention, what I claim is:
1. The hereindescribed shears for cutting metal, comprising a base plate, two standards secured thereto, a bolt secured between the standards, two bars fulcrumed near one end on said bolt and adapted to have their other ends rest on the base plate, thecontiguous faces of said bars being rabbeted near their front ends, cutting blades secured in the rabbeted portions, the rear end of one of said bars being vertically extended, and a cam lever pivoted to the extended portion with the cam impinging against the rear end of the other bar as and for the purpose set forth.
2. The herein-described shears comprising a base plate, two standards secured thereto, two bars fulcrumed near one end between said standards and ada ted to have their other ends rest on the ass plate, cuttin blades secured to the contiguous faces of sai bars near the front ends thereof, the rear end of one of said bars being upwardly extended, anda cam let er pivoted to the extended portion with the cam impinging against the rear end of the other bar as and for the purpose set forth.
In testimony whereof I afiix my signature in presence of two witnesses.
WILLIAM A. GAHLER.
Witnesses:
C. H. BAILER, THEODORE PETERSON.
US1907400021 1907-10-31 1907-10-31 Shears for cutting iron. Expired - Lifetime US877764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1907400021 US877764A (en) 1907-10-31 1907-10-31 Shears for cutting iron.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1907400021 US877764A (en) 1907-10-31 1907-10-31 Shears for cutting iron.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482613A (en) * 1968-01-08 1969-12-09 Harrington Mfg Co Timber shear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482613A (en) * 1968-01-08 1969-12-09 Harrington Mfg Co Timber shear

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