US104410A - Improvement in jig-saws - Google Patents
Improvement in jig-saws Download PDFInfo
- Publication number
- US104410A US104410A US104410DA US104410A US 104410 A US104410 A US 104410A US 104410D A US104410D A US 104410DA US 104410 A US104410 A US 104410A
- Authority
- US
- United States
- Prior art keywords
- jig
- saws
- lever
- improvement
- saw
- 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
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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
- B23D49/008—Jig saws, i.e. machine saws with a vertically reciprocating narrow saw blade chucked at both ends for contour cutting hand-driven or foot-driven
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- 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
- Y10T83/705—With means to support tool at opposite ends
- Y10T83/7055—And apply drive force to both ends of tool
- Y10T83/7065—By reciprocating rigid support
Definitions
- the ligure represents a side elevation of my inven- 'Ihis invention consistsin a peculiar' ⁇ arrangement and pitmen,
- ⁇ Hl is a crosshead, ⁇ which slides in ⁇ ways F.
- ⁇ I represents the sawfwhich is vattached to crossheads E'and H, and passes through the center of' i table B.
- y i i y 'J represents a bell-crank lever, pivoted at the end olf neckar, near cross-headE.
- l ""One armof said lever is connect-edv to said'crossl i V represents 4the driving-shaft, which is provided head by the pitman P, while the other arm is connected by rod It to the arm L of lever J.
- y ⁇ S is a bell-cranklever, which is pivoted near crosshead H, and connected to the same by pit-man T and to the arm M of lever J by rod U.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Description
THQMAS'BLANDIN, or CHARLESTQWN; MASSACHUSETTS. y
i y LTHoMAsBLANDINmf Charlestowmntheconnty Letters Patent N ..104,410,'dated .Tu-ne 21, 1870rl The ScheduleLrferred to in these Letters Patent and making part cf the same.
of M iddlesex and State ofMassachuset-ts, have invented certain VImprovements in Jig-Saws, `of which the following is a specificatie v tion.
` of.` bell-crank levers, l`c onneetingA-rods,
inaffer more fully appeal".
The ligure represents a side elevation of my inven- 'Ihis invention consistsin a peculiar'` arrangement and pitmen,
whereby a jig or `scroll-saw is operated, as will here- In the drawin y A represent-s the saw-flame, provided with the curved neck `a, circniarzt-able B, and legs, C.
7 Ou the end of neck a are the vertical ways D, in `whit-h slides the cross-head E.
-F F represent waysunder table B, and in line with x ways D.
`Hl is a crosshead,` which slides in `ways F.
`I represents the sawfwhich is vattached to crossheads E'and H, and passes through the center of' i table B. y i i y 'Jrepresents a bell-crank lever, pivoted at the end olf neckar, near cross-headE. l ""One armof said lever is connect-edv to said'crossl i V represents 4the driving-shaft, which is provided head by the pitman P, while the other arm is connected by rod It to the arm L of lever J. y `S is a bell-cranklever, which is pivoted near crosshead H, and connected to the same by pit-man T and to the arm M of lever J by rod U.
with pulley W, `and this latter is eccentrcally connectediby rod'X with arm KA of lever J.
The operation will vbe readily seen `to consist in the vibratory motion imparted to lever J by means of pul- .ley W, communicated through rods It and U to levers Y O S, and from thence to cross-heads E H and saw I, through pitmeu P T, these latter being pivoted, at one end, to said crossheads, and at the other-to said lever. The motion thus produced is steady and particularly easy, as the pitmen' P T4 allow the utmost freedom of motion -to levers O S, yet, at the same time, operate the saw el'ectually.
It will be seen that when the pitma'n T is in aperpendicular position, the pitman P is inclined, as shown, and m'ce versa. This arran gement prevents an y deadcenters, and, consequently, any strain on the saw.
Having thus fully described vmy invention,
lVhat I claim as new, and desire to secure by Let Witnesses: t
CARROLL D. WRIGHT, CHARLES F'. BROWN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US104410A true US104410A (en) | 1870-06-21 |
Family
ID=2173895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US104410D Expired - Lifetime US104410A (en) | Improvement in jig-saws |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US104410A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160045963A1 (en) * | 2014-08-13 | 2016-02-18 | Chiung-Yu Chang | Transmission mechanism of a fret sawing machine |
-
0
- US US104410D patent/US104410A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160045963A1 (en) * | 2014-08-13 | 2016-02-18 | Chiung-Yu Chang | Transmission mechanism of a fret sawing machine |
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