US181762A - Improvement in scroll-sawing machines - Google Patents
Improvement in scroll-sawing machines Download PDFInfo
- Publication number
- US181762A US181762A US181762DA US181762A US 181762 A US181762 A US 181762A US 181762D A US181762D A US 181762DA US 181762 A US181762 A US 181762A
- Authority
- US
- United States
- Prior art keywords
- cam
- saw
- scroll
- improvement
- sawing machines
- 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
- 210000003414 Extremities Anatomy 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000000994 depressed Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001105 regulatory Effects 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
- B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
- B23D49/007—Jig saws, i.e. machine saws with a vertically reciprocating narrow saw blade chucked at both ends for contour cutting
-
- 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
- Y10T83/687—By tool reciprocable along elongated edge
- Y10T83/69—Stored energy furnishes drive in one direction
-
- 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
- Y10T83/8843—Cam or eccentric revolving about fixed axis
Definitions
- This invention relates to that class of sawing-machines used mainly by amateurs for scoll and other delicate kinds of sawing, and designed mainly to be operated by foot-power,
- the object of this invention is-to dispense with the generally-used means ofimparting reciprocating motion to the saw, and to substitute a movement that shall be simpler, cheaper, and more effectual; and this object is attained by using a polygonal cam to oscillate the saw-frame, which movement also secures other advantages, as by it the friction is reduced and less power is required to do a given amount of work; and as it gives a positive movement to the down or cutting stroke of the saw, metal even may with facility be sawed, and such a cam also prevents the machine stopping on a dead-center.
- Figure 1 is a perspective view of a machine embodying my invention.
- Fig. 2 is a plan, showing the essential parts in a clearer manner.
- A is the table or top of the machine, which may be supported on three or B B B is the saw-frame, which is attached to the table by and swings on the pivot b.
- the saw is strained between the extremities of the arms B B, in the manner common to saws of this class.
- Theshort arm B is an extension of the saw-frame, and carries at its extremity the roller 0.
- D is a cam, preferably of six sides, as shown, against which theroller O is caused to press by the spring f, so that when the cam D is rotated the saw-frame is caused to vibrate and give a proper motion to the saw.
- the curves of the circumference of the cam are so made as to give a motion to the saw similar to that derived from the crank.
- the cam D is carried 1 on the end (in this instance) of a short shaft, that has a bearing in the piece E, which may be a part of the leg or frame of the machine.
- the fly-wheel H To the other end of the shaft is attached the fly-wheel H, which gives steadiness of motion to the whole, though the cam and fly-wheel may be cast together; or the cam itself may be made heavy enough to answer the purpose of a fly-wheel.
- the cam may be of any number of sides; but six is preferable, as it gives a sufficient speed to the saw without a rapid movement of the foot, and answers best for keeping the treadle off of the dead-center when the machine is at rest.
- the pressure of the spring fon the roller causes the cam to stop'with the roller in the most depressed part of one of the sides, and as the crank-pin e is placed with reference to this position of the cam, it follows that it will not stop on the center.
- F is the treadle
- c is the pitman, through which motion is communicated to the machine.
- cam D the cam D, arm B, spring f, crank-pin e, pitmau e, and treadle F, arranged and operating substantially as and for the purpose hereinbefore set forth.
Description
E. ANDERSON.
g scnom. sAwn'm MACHINE. No'.181,76Z. Yatented. Sept. 5,1876.
'Witngs$ v. I invenw'h WM g: @LM m more legs.
UNITED STATES EUCLID ANDERSON, 0E
PEEKSKILL, NEW YORK.
IMPROVEMENT IN SCROLL-SAWING MACHINES.
Specification forming part of Letters Patent No. [8 1,762,
dated September 5,1876; application filed January 17, 1876.
To all whom it may concern:
Be it known that I, EUCLID ANDERSON, of Beekskill, in the county of Westchester and State of New York, have invented an Improvement in Scroll-Sawing Machines, of which the following is a specification:
This invention relates to that class of sawing-machines used mainly by amateurs for scoll and other delicate kinds of sawing, and designed mainly to be operated by foot-power,
though not necessarily so.
The object of this invention is-to dispense with the generally-used means ofimparting reciprocating motion to the saw, and to substitute a movement that shall be simpler, cheaper, and more effectual; and this object is attained by using a polygonal cam to oscillate the saw-frame, which movement also secures other advantages, as by it the friction is reduced and less power is required to do a given amount of work; and as it gives a positive movement to the down or cutting stroke of the saw, metal even may with facility be sawed, and such a cam also prevents the machine stopping on a dead-center.
, 1n the drawings attached, Figure 1 is a perspective view of a machine embodying my invention. Fig. 2 is a plan, showing the essential parts in a clearer manner.
In Fig. 1, A is the table or top of the machine, which may be supported on three or B B B is the saw-frame, which is attached to the table by and swings on the pivot b. The saw is strained between the extremities of the arms B B, in the manner common to saws of this class. Theshort arm B is an extension of the saw-frame, and carries at its extremity the roller 0. D is a cam, preferably of six sides, as shown, against which theroller O is caused to press by the spring f, so that when the cam D is rotated the saw-frame is caused to vibrate and give a proper motion to the saw. The curves of the circumference of the cam are so made as to give a motion to the saw similar to that derived from the crank. The cam D is carried 1 on the end (in this instance) of a short shaft, that has a bearing in the piece E, which may be a part of the leg or frame of the machine. To the other end of the shaft is attached the fly-wheel H, which gives steadiness of motion to the whole, though the cam and fly-wheel may be cast together; or the cam itself may be made heavy enough to answer the purpose of a fly-wheel.
The cam may be of any number of sides; but six is preferable, as it gives a sufficient speed to the saw without a rapid movement of the foot, and answers best for keeping the treadle off of the dead-center when the machine is at rest. The pressure of the spring fon the roller causes the cam to stop'with the roller in the most depressed part of one of the sides, and as the crank-pin e is placed with reference to this position of the cam, it follows that it will not stop on the center.
The tension of the spring fis regulated by the screw and nut h g, Fig. 1.
F is the treadle, and c is the pitman, through which motion is communicated to the machine.
I do not claim as new the application of a cam 'to a saw; neither do I claim the sawl'rame swinging on a pivot at or near the surface of the table, have been in use for years; but my method of arranging and using said devices produces a more simple,easy-working, and perfect sawing-machine for small scroll-work than has heretofore been shown.
1 claim as my invention 1. The saw-frame B B, having projecting arm B, roller (J, spring f, and cam D, combined and operating substantially as described.
2. In combination, the cam D, arm B, spring f, crank-pin e, pitmau e, and treadle F, arranged and operating substantially as and for the purpose hereinbefore set forth.
EUCLID ANDERSON.
Witnesses STEPHEN LEN D. W. TRAVIS.
as I am aware that both
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US181762A true US181762A (en) | 1876-09-05 |
Family
ID=2251168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US181762D Expired - Lifetime US181762A (en) | Improvement in scroll-sawing machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US181762A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2692622A (en) * | 1953-06-01 | 1954-10-26 | George O Heese | Portable jig saw |
| KR20210064345A (en) * | 2018-09-27 | 2021-06-02 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Communication method and device |
-
0
- US US181762D patent/US181762A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2692622A (en) * | 1953-06-01 | 1954-10-26 | George O Heese | Portable jig saw |
| KR20210064345A (en) * | 2018-09-27 | 2021-06-02 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Communication method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US181762A (en) | Improvement in scroll-sawing machines | |
| US1941519A (en) | Driving means for slicing machine knives | |
| US220705A (en) | Improvement in scroll-saws | |
| US466929A (en) | X nohbis petefls co | |
| US168920A (en) | Improvement in scroll-sawing machines | |
| US184247A (en) | Improvement in sawing-machines | |
| US486169A (en) | Charles spoffoed | |
| US138808A (en) | Improvement in scroll-sawing machines | |
| US686600A (en) | Hacksaw. | |
| US479399A (en) | Power hack-sawing machine | |
| US123723A (en) | Improvement in saving-machines | |
| US915210A (en) | Sawing-machine. | |
| US261322A (en) | Drag-saw | |
| US682355A (en) | Treadle mechanism. | |
| US486142A (en) | Horse-power | |
| US630288A (en) | Saw-filing machine. | |
| US128024A (en) | Improvement in sawing-machines | |
| US131510A (en) | Improvement in sawing-machines | |
| US367864A (en) | strickland | |
| US1143084A (en) | Saw-sharpening device. | |
| US270297A (en) | Shingle-machine | |
| US109351A (en) | Improvement in sawing-machines | |
| US420849A (en) | Compensating gang sawing-machine | |
| US475621A (en) | Gin-saw gummer | |
| US137581A (en) | Improvement in sawing-iviackines |