US140657A - Improvement in sawing-machines - Google Patents
Improvement in sawing-machines Download PDFInfo
- Publication number
- US140657A US140657A US140657DA US140657A US 140657 A US140657 A US 140657A US 140657D A US140657D A US 140657DA US 140657 A US140657 A US 140657A
- Authority
- US
- United States
- Prior art keywords
- saw
- sawing
- machines
- improvement
- lever
- 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
- 238000005520 cutting process Methods 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B11/00—Cross-cut reciprocating saws with power drive; Appurtenances 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
- Y10T83/687—By tool reciprocable along elongated edge
- Y10T83/6905—With tool in-feed
- Y10T83/691—And auxiliary means for promoting or retarding tool in-feed
- Y10T83/6925—With interrelated tool actuating and in-feed means
-
- 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
- Y10T83/6905—With tool in-feed
- Y10T83/694—And means to prevent tool in-feed
Definitions
- Figure 1 rep resents a side elevation of my improved sawguide;
- Fig. 2 a vertical transverse section of the same on line a c, Fig. 1, showing stirrup and sliding chair at end of saw-shaft; and
- Fig. 3 is a vertical transverse section on the line 00 m, Fig. 1, showing sliding chair of front end of saw-shaft.
- the object of my invention is so to improve the construction of the saw-guide that the stroke of the saw may be rapidly changed and adapted to the requirements of the cutting operations.
- the increase and decrease of the stroke is produced by simple means, and easily regulated.
- My invention consists of lever connections, acting on the front and pitman end of the saw-shaft, to be operated simultaneously or separately, as desired.
- A represents the frame for guiding the saw-bar B.
- Vertical guides at, of front part of frame A carry the chair I), in which the front end of saw-bar B moves.
- To the rear part of frame A is pivoted the stirrup D, which connects, by pitman E, with the driving-wheel.'
- the rear end of saw-bar B slides vertically, by means of chair (I, on the side bars of stirrup D.
- the front part of frame A supports, in connection with the inclined side piece 6, two ratchet-segments, f,
- lever F is connected, by rods 1, to one arm of bell-crank m, which is pivoted to rear frame A.
- the other arm m connects, by rod l, to sliding chair (I.
- the forward motion of lever F elevates thereby the rear end of saw-bar B; the backward motion lowers the same. Stops O of frame A limit the extent of motion of lever F.
- the shorter lcver Gr connects, by a suitable rope, p, to the top of front sliding chair b, and regulates the elevation or lowering of the front end of saw-bar B.
- Levers F and G look, by suitable projections, into ratchetsegments f, and secure thereby the exact retention of their posi tions, and that of saw-bar B. Both ends of B may, by means of levers F and G, be lifted and lowered, either both at the same time or independently of each other, and the saw thereby directed, as required, in cutting the logs or other objects. 4
- levers F G with sawbar B, by rods 1 1, arms m m, and rope 1), sub stantially as described.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Description
' H. M. sTow.
" Sawing-Machines.
No 140,657, Paten-tedJuly8,1873.*
Wimesse "f Invemur.
M 4 I b m w s P r 52% Attorneys.
UNITED STATES PATENT QFFIGE.
HARRY M. STOW, OF MILAN, OHIO.
IMPROVEMENT IN -SAWING-MACHINES.
Specification forming part of Letters Patent No. [40,657, dated July 8, 1873; application filed April 26, 1873.
' cation:
In the accompanying drawing, Figure 1 rep resents a side elevation of my improved sawguide; Fig. 2, a vertical transverse section of the same on line a c, Fig. 1, showing stirrup and sliding chair at end of saw-shaft; and
Fig. 3 is a vertical transverse section on the line 00 m, Fig. 1, showing sliding chair of front end of saw-shaft.
Similar letters of reference indicate corresponding parts.
The object of my invention is so to improve the construction of the saw-guide that the stroke of the saw may be rapidly changed and adapted to the requirements of the cutting operations. The increase and decrease of the stroke is produced by simple means, and easily regulated. My invention consists of lever connections, acting on the front and pitman end of the saw-shaft, to be operated simultaneously or separately, as desired.
In the drawing, A represents the frame for guiding the saw-bar B. Vertical guides at, of front part of frame A, carry the chair I), in which the front end of saw-bar B moves. To the rear part of frame A is pivoted the stirrup D, which connects, by pitman E, with the driving-wheel.' The rear end of saw-bar B slides vertically, by means of chair (I, on the side bars of stirrup D. The front part of frame A supports, in connection with the inclined side piece 6, two ratchet-segments, f,
placed sidewise to it, one above piece 6, the other below the same. Two hand-levers, F and G, are pivoted to piece 6, and centrally to segments f. The lower lever G is connected firmly to a ratchet-wheel, 9, into which a pawl, h,locks, which-is applied to lever F by handle and spring connection 70. By grasping handles F and z the pawl h looks into ratchet g,
and imparts thereby simultaneous motion to lever G. If the pawl h is not locked both levers F and G may be'used separately. The lower end of lever F is connected, by rods 1, to one arm of bell-crank m, which is pivoted to rear frame A. The other arm m connects, by rod l, to sliding chair (I. The forward motion of lever F elevates thereby the rear end of saw-bar B; the backward motion lowers the same. Stops O of frame A limit the extent of motion of lever F. The shorter lcver Gr connects, by a suitable rope, p, to the top of front sliding chair b, and regulates the elevation or lowering of the front end of saw-bar B. Levers F and G look, by suitable projections, into ratchetsegments f, and secure thereby the exact retention of their posi tions, and that of saw-bar B. Both ends of B may, by means of levers F and G, be lifted and lowered, either both at the same time or independently of each other, and the saw thereby directed, as required, in cutting the logs or other objects. 4
Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The saw-bar B, having sliding frontand stirrup chairs I) and d, as described.
2. The combination of levers F G with sawbar B, by rods 1 1, arms m m, and rope 1), sub stantially as described.
' HARRY M. STOW. Witnesses THOMAS B. EDDY,
MARTIN HARTER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US140657A true US140657A (en) | 1873-07-08 |
Family
ID=2210071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US140657D Expired - Lifetime US140657A (en) | Improvement in sawing-machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US140657A (en) |
-
0
- US US140657D patent/US140657A/en not_active Expired - Lifetime
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