US122270A - Improvement in shears for cutting metal - Google Patents
Improvement in shears for cutting metal Download PDFInfo
- Publication number
- US122270A US122270A US122270DA US122270A US 122270 A US122270 A US 122270A US 122270D A US122270D A US 122270DA US 122270 A US122270 A US 122270A
- Authority
- US
- United States
- Prior art keywords
- shears
- improvement
- plate
- standard
- cutting metal
- Prior art date
- 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
Links
- 229910052751 metal Inorganic materials 0.000 title description 10
- 239000002184 metal Substances 0.000 title description 10
- 210000001847 Jaw Anatomy 0.000 description 4
- 241000600039 Chromis punctipinnis Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 210000001364 Upper Extremity Anatomy 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 210000004873 upper jaw Anatomy 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
- F15B15/065—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the rack-and-pinion type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
-
- 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
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18888—Reciprocating to or from oscillating
- Y10T74/18976—Rack and pinion
-
- 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
- Y10T83/8807—Gear or ratchet pawl drives toothed tool support
Definitions
- FIG. 1 is a side elevation of a shears constructed to embody my invention.
- Fig. 2 is a front elevation of the same; and
- Fig. 3 is an elevation of the other side.
- This invention relates to that class of shears made use of to cut heavy metal, and chiefly employed by blacksmiths; the object being to furnish a strong durable shears at a comparatively small cost, and such, at the same time, as will enable the operator to sever heavy bar-iron at a very sharp angle.
- the frame or jaw-shaped support is so contrived as to not interefere with the adjustment of the bar to the desired angle; and my invention consists of a novel construction and arrangement of parts, as hereinafter more fully described.
- a jaw-shaped standard, A arranged to be attached or afiixed to a proper supporting-frame, holds the lower or stationary blade B of the shears.
- the upper or moving blade 13 is carried by a strong metal plate or frame, O,placed side by side with the jaw-shaped standard A, the contiguous sides of the plate and standard being planed or.- properly fitted to move upon one another wit-hthc.
- the bearing of the plate consists of a trunnion,T, projecting from the stan dard A into a cavity within the said plate; this trunnion is indicated upon the drawing in dotted lines.
- the head of the standard or upper extremity of the upper jaw thereof, above the point of the shears, is fitted with a cogged segment,D, while the correspondingpoint of the moving plate affords the pivot, fulcrum, or bearin g of a lever, E, having a geared segmental head, G, the teeth of which engage the geared segment I).
- a pin, L, or lug projects from the standard at a point above the trunnion, and a second pin or lug, M,
- the pin or lug L extends through a curved slot, K, cut through the moving plate at this point.
- a tie or retaining. bar, N extends from one of the above-mentioned 1 pins or lugs to the other, serving to hold the plate firmly to its work; this bar being secured to the lugs by proper bolts passing thereinto.
- the pin -ard in the following manner: The inner end of the blade is beveled and fitted into a beveled recess within the metal of the standardor plate; the whole blade is contained in a set-off or recess within the metal; being, in brief, countersunk.
- the outer end of the steel blades are made plain, and a single bolt or screw,s, serves to hold them in place; the screw being applied at this point is easily gotten at, and when it is removed the whole blade may be detached readily without taking the shears apart. This proves to be a great conven ience in view of the frequent sharpening required.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Scissors And Nippers (AREA)
Description
UNITED STATES PATENT -FFIC'E.1
GEORGE M. MARSHALL, or new HAVEN, WISCONSIN.
IMPROVEMENT IN SHEARS FOR CUTTlNG MET AL.
Specification forming part (if Letters Patent No. 122,270, dated December 26, 1871; antedated December 23, 1871.
To whom it may concern:
Be it known that I, GEORGE M. MARSHALL, of'
New Haven, in the county of Adams and State of Wisconsin, have invented a new and useful Improvement in Shears for Outtin g Metal and I do declare that the following is a true and accurate description thereof, reference being had to the accompanying drawing and to the letters of reference marked thereon and being a part of this specification, in which- Figure 1 is a side elevation of a shears constructed to embody my invention. Fig. 2 is a front elevation of the same; and Fig. 3 is an elevation of the other side.
Like letters of reference made use of in the several figures indicate like parts.
Nature of the Invention.
. This invention relates to that class of shears made use of to cut heavy metal, and chiefly employed by blacksmiths; the object being to furnish a strong durable shears at a comparatively small cost, and such, at the same time, as will enable the operator to sever heavy bar-iron at a very sharp angle. The frame or jaw-shaped support is so contrived as to not interefere with the adjustment of the bar to the desired angle; and my invention consists of a novel construction and arrangement of parts, as hereinafter more fully described.
To enable those skilled in the art to make and use my invention, I will proceed more to describe the same'with particularity,making use in so doing of the aforesaid drawing.
General Description.
A jaw-shaped standard, A, arranged to be attached or afiixed to a proper supporting-frame, holds the lower or stationary blade B of the shears. The upper or moving blade 13 is carried by a strong metal plate or frame, O,placed side by side with the jaw-shaped standard A, the contiguous sides of the plate and standard being planed or.- properly fitted to move upon one another wit-hthc.
least possible friction, and the plate secured to the standard by interchanging connections, as will be presently explained. The bearing of the plate consists ofa trunnion,T, projecting from the stan dard A into a cavity within the said plate; this trunnion is indicated upon the drawing in dotted lines. The head of the standard or upper extremity of the upper jaw thereof, above the point of the shears, is fitted witha cogged segment,D, while the correspondingpoint of the moving plate affords the pivot, fulcrum, or bearin g of a lever, E, having a geared segmental head, G, the teeth of which engage the geared segment I). A pin, L, or lug, projects from the standard at a point above the trunnion, anda second pin or lug, M,
below the moving-plate. The pin or lug L extends through a curved slot, K, cut through the moving plate at this point. A tie or retaining. bar, N, extends from one of the above-mentioned 1 pins or lugs to the other, serving to hold the plate firmly to its work; this bar being secured to the lugs by proper bolts passing thereinto. The pin -ard in the following manner: The inner end of the blade is beveled and fitted into a beveled recess within the metal of the standardor plate; the whole blade is contained in a set-off or recess within the metal; being, in brief, countersunk. The outer end of the steel blades are made plain, and a single bolt or screw,s, serves to hold them in place; the screw being applied at this point is easily gotten at, and when it is removed the whole blade may be detached readily without taking the shears apart. This proves to be a great conven ience in view of the frequent sharpening required.
Now, the operation of my invention is, briefly,
as follows: Power is applied to the leverEto bring the same down, which rotates the segmental head 0, and changes constantly the point of resistance. along the segmental gear D of the standard; or, in other words, the segmental head of the lever is rolled along said gear, carrying with it the plate attached thereto, which moves upon the trunnion T with arotatingor rockingforward motion, bringin g the upper blade of the shear therewith to produce the out. From the back of the blades the opening or jaw in the standard is cut away, in an angling direction, through the material of the standard, forming a prolongation, O, of said jaw. U l
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US122270A true US122270A (en) | 1871-12-26 |
Family
ID=2191709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US122270D Expired - Lifetime US122270A (en) | Improvement in shears for cutting metal |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US122270A (en) |
-
0
- US US122270D patent/US122270A/en not_active Expired - Lifetime
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