US183632A - Improvement in planing-machines - Google Patents
Improvement in planing-machines Download PDFInfo
- Publication number
- US183632A US183632A US183632DA US183632A US 183632 A US183632 A US 183632A US 183632D A US183632D A US 183632DA US 183632 A US183632 A US 183632A
- Authority
- US
- United States
- Prior art keywords
- planing
- machines
- improvement
- bar
- pressure
- 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
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
- B27G19/10—Measures preventing splintering of sawn portions of wood
Definitions
- Figure l is a perspective View.
- Fig. 2 is a longitudinal section atmw.
- Fig. 3 is a perspective view of a detached finger.
- A represents a rigid pressure-bar, having the usual bolts a a at each end, for adjusting its plane above the bed to the thickness of lumber being planed, and also a hole, b, through which its guide-rod, at each side, passes.
- adovetail finger, B tapered slightly, so as to wedge fast in its groove when pressed back by the advancing lumber, and projecting both to the front and rear of the pressure-bar.
- the extended bearing-surface of the fingers tends to keep or press down a warped or uneven spot firmly to a true bearing upon the bed, and in close proximity to the cutters where there is the greatest tendency to lift knots, shakes, and slivers.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
W. C. BROCKUS & C. H. BARNUM.
PLANING-MACHINE.
Patented Oct. 24, 1876.
N. PEIERS, PHOTO LI HOGR WASHINGTON n C UNITED STATES PATENT OFFICE.
WILLIAM C. BROGKUS AND CHARLES H. BARNUM, OF SPRING LAKE, MIOH.
IMPROVEMENT IN PLANlNG-MACHINES.
Specification forming part of LettersPatent No. 183,632, dated October 24, 1876; application filed August 25, 1876.
To all whom it may concern:
Be it known that we, WILLIAM (3. BEocKUs and CHARLES H. BARNUM, of Spring Lake,
luin ber longitudinally of the bed without creat-' ing undue friction, and to enable all chips and shavings to pass out with the lumber without beiugembedded in its surface by passing under the bearing-surface of the pressure-bar. To this end our invention consists in dovetailing a series of fingers into the under surface of the pressure-bar, with spaces between them for the passage of chips and shavings, as more fully hereinafter set forth.
Figure l is a perspective View. Fig. 2 is a longitudinal section atmw. Fig. 3 is a perspective view of a detached finger.
In the drawing, A represents a rigid pressure-bar, having the usual bolts a a at each end, for adjusting its plane above the bed to the thickness of lumber being planed, and also a hole, b, through which its guide-rod, at each side, passes. Into the lower surface dovetail grooves are out, which grooves are Wedge-shaped or narrower at the rear than at the front end next the cutter-head. In each is inserted adovetail finger, B, tapered slightly, so as to wedge fast in its groove when pressed back by the advancing lumber, and projecting both to the front and rear of the pressure-bar. Its bottom face is flat and parallel with the bed, and its front end is pointed and rounded up, so as not to catch in the Work, while its pointed end parts or directs chips and shavings, so that they will pass at one side, and not be carried under the finger-body to be pressed into the planed face of the lumber.
The extended bearing-surface of the fingers tends to keep or press down a warped or uneven spot firmly to a true bearing upon the bed, and in close proximity to the cutters where there is the greatest tendency to lift knots, shakes, and slivers.
What we claim as our invention is- The pressure-bar A, having the projecting fingers B dovetailed into its under surface, substantially as described.
WILLIAM G. BROGKUS. CHARLES H. BARNUM. Witnesses:
ROBERT DERR, OHANcEY STUCK.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US183632A true US183632A (en) | 1876-10-24 |
Family
ID=2253037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US183632D Expired - Lifetime US183632A (en) | Improvement in planing-machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US183632A (en) |
-
0
- US US183632D patent/US183632A/en not_active Expired - Lifetime
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