US18025A - Shears for cutting metal - Google Patents
Shears for cutting metal Download PDFInfo
- Publication number
- US18025A US18025A US18025DA US18025A US 18025 A US18025 A US 18025A US 18025D A US18025D A US 18025DA US 18025 A US18025 A US 18025A
- Authority
- US
- United States
- Prior art keywords
- shears
- lever
- slide
- blade holder
- 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
- 239000002184 metal Substances 0.000 title description 4
- 230000000875 corresponding Effects 0.000 description 12
- 238000005096 rolling process Methods 0.000 description 12
- 238000010276 construction Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
Images
Classifications
-
- 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
- B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
- B23D57/0076—Devices for converting any machine for sawing purposes
-
- 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
- Y10T83/8821—With simple rectilinear reciprocating motion only
- Y10T83/8841—Tool driver movable relative to tool support
- Y10T83/8844—Gear actuated tool support
Definitions
- TIMOTHY F TAFT, OF WORCESTER, MASSACHUSETTS.
- Fig. 2 1s a transverse sectional view.
- my invention consists in the rolling lever upon an incline plane, upon the top side of the blade holder or slide, rolling horizontal and parallel to the cutting edge of the blades, making the pressure equal and direct with the cut of the blades, rolling the whole length of the blades (more or less) with much less friction than there is in the cam or lever shears, in them, the pressure on the lever is greater as you near the last cutting end of the blades.
- a A are the top and bottom parts of the frame or body of the shears, connected at B.
- C is the slide or top blade holder, having the geared rack D, and the incline plane E on the top edge, and the blade F on the bot- 7 tom side.
- G, G is the rolling lever with the gear H corresponding with rack D, and the round surface I corresponding with incline plane E.
- the rack K is a rack attached to the top part of the frame or body with gears corresponding with friction roller J, the rack K is very essential to keep the roller J in its place with little or no friction or strain upon its gears.
- L is a plane or smooth surface just back of the rack K square with the perpendicular sides of the slide or blade holder C, and corresponding with the surface on roller J, to receive the pressure of the cutting of the blades E and E M is a plate bolted or cast upon the front side of the slide or blade holder G, with the recess N on an inclination corresponding and parallel with, the inclination of the slide or blade holder C, and central with the gear and surface part of the lever G.
- O is a recess in the front part of frame or body, central with the gear and surface part of lever G and parallel with the'rack K and plane L.
- P is a stud or shaft running through the center of the gear part of the lever G, with rollers on each end, rolling in recesses N and O, for the purpose of raising the slide or blade holder, and not a bearing only, on one side of each recess, that is the lower side of back recess and the top side of front recess.
- the rolling lever upon an incline plane which is upon the slide or blade holder, substantially as specified.
Description
T. F. TA'FT.
Shearing Metal. r 0.'-1s',025. Patented Aug. 18, 1857.
fiw'e v 5566 ZZZ W W fi/ WW 4 unrrnn STATES PATENT OFFICE.
TIMOTHY F. TAFT, OF WORCESTER, MASSACHUSETTS.
SHEARS FOR CUTTING- METAL.
Specification of Letters Patent No. 18,025, dated August 18, 1857.
To all whom it may concern:
Be it known that I, TIMOTHY F. TAFT, of
Fig. 2 1s a transverse sectional view.
The nature of my invention consists in the rolling lever upon an incline plane, upon the top side of the blade holder or slide, rolling horizontal and parallel to the cutting edge of the blades, making the pressure equal and direct with the cut of the blades, rolling the whole length of the blades (more or less) with much less friction than there is in the cam or lever shears, in them, the pressure on the lever is greater as you near the last cutting end of the blades.
To enable others skilled in the art to make and use my invention I will proceed to describe its construction and operation in drawings of the two figures.
A A are the top and bottom parts of the frame or body of the shears, connected at B.
C is the slide or top blade holder, having the geared rack D, and the incline plane E on the top edge, and the blade F on the bot- 7 tom side.
G, G, is the rolling lever with the gear H corresponding with rack D, and the round surface I corresponding with incline plane E.
J is the friction roller with the gear and round surface upon it corresponding with the lever G.
K is a rack attached to the top part of the frame or body with gears corresponding with friction roller J, the rack K is very essential to keep the roller J in its place with little or no friction or strain upon its gears.
L is a plane or smooth surface just back of the rack K square with the perpendicular sides of the slide or blade holder C, and corresponding with the surface on roller J, to receive the pressure of the cutting of the blades E and E M is a plate bolted or cast upon the front side of the slide or blade holder G, with the recess N on an inclination corresponding and parallel with, the inclination of the slide or blade holder C, and central with the gear and surface part of the lever G.
O is a recess in the front part of frame or body, central with the gear and surface part of lever G and parallel with the'rack K and plane L.
P is a stud or shaft running through the center of the gear part of the lever G, with rollers on each end, rolling in recesses N and O, for the purpose of raising the slide or blade holder, and not a bearing only, on one side of each recess, that is the lower side of back recess and the top side of front recess.
What I claim as my invention and desire to secure by Letters Patent, is
The rolling lever upon an incline plane, which is upon the slide or blade holder, substantially as specified.
TIMOTHY F. TAFT.
Witnesses:
P. C. BARON, CHAs. F. ALLEN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US18025A true US18025A (en) | 1857-08-18 |
Family
ID=2080985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US18025D Expired - Lifetime US18025A (en) | Shears for cutting metal |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US18025A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5609081A (en) * | 1995-03-30 | 1997-03-11 | Lin; Shoei C. | Portable round-tube cutter |
-
0
- US US18025D patent/US18025A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5609081A (en) * | 1995-03-30 | 1997-03-11 | Lin; Shoei C. | Portable round-tube cutter |
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