US148213A - Improvement in planing-machi - Google Patents
Improvement in planing-machi Download PDFInfo
- Publication number
- US148213A US148213A US148213DA US148213A US 148213 A US148213 A US 148213A US 148213D A US148213D A US 148213DA US 148213 A US148213 A US 148213A
- Authority
- US
- United States
- Prior art keywords
- roller
- planing
- frame
- lumber
- rollers
- 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
- 238000010276 construction Methods 0.000 description 6
- 230000036633 rest Effects 0.000 description 4
- 230000003455 independent Effects 0.000 description 2
- 230000002452 interceptive Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/002—Means to press a workpiece against a guide
Definitions
- my invention relates to devices used for holding the lumber to be planed firmly down upon the bed of the machine, to prevent the knives from lifting the lumber, and thereby cause it to become wavy and it consists in the employment of two rollers of unequal diameter, the smaller one being located close to the path of the knives, while the larger is farther away from it. It also consists in the construction and arrangement of the devices in which said rollers are placed and supported, all of which will be hereinafter more fully set forth.
- FIG. 1 is a side elevation of the bed and standard, with the cutting-roller of a planingmachine with my invention attached thereto.
- Fig. 2 is a transverse vertical section, Fig. 3 a plan view, and Fig. 4 a rear elevation, of the same.
- Fig. 5 is a bottom view of the rollers, with the devices for holding them.
- A represents the bed-plate of a planing-machine, with standards B B, in which the journals of the cutting or knife roller C have their bearings.
- each standard 13 On the inner side of each standard 13 is pivoted the front end of an arm, D, the pivot-point being located in front of and a trifle above the axis of the knife-roller O.
- the arm D From this point, curves over the jour nal of the roller 0, and downward in rear of the same, and rests against a stop, a, on the inner side of the standard B. At this point the arm D turns, and extends straight toward the rear.
- a frame or housing, E which is provided at the rear, on each side, with an arm, b, which rests upon an arm, (1, extending from the rear side of the standard B, to prevent the frame from falling down too far.
- an arm, b which rests upon an arm, (1, extending from the rear side of the standard B, to prevent the frame from falling down too far.
- two rollers, G and G which are of unequal diameters, the larger one, G, being in rear, and the smallerone, G, in front.
- This latter roller is arranged ona line with the axis upon which the frame turns; or it may be a little in front or rear of said axis and the frame is so arranged that the roller G will bear upon the lumber close to the path of the knives, while the larger roller, G, is in rear thereof.
- This spring (or springs) may be of any desired or suitable construction, so as to exert the required pressure upon the rollers to hold the lumber firmly down upon the bed.
- the rollers G and G have each one or more .bearings turned on them at suitable distances from the ends, so as to be supported at one or more places between the ends, thereby overcoming any liability of the rollers springing upward from the lumber.
- the knife-roller is arranged in such a manner as to be adjusted vertically up and down; and in such case the various devices above described are arranged to move up and down with the roller, so that they will retain their relative positions during any change in the positions of the knife-roller.
- the smaller roller, G is supported or has its bearings in extended arms h h, formed on or attached to the frame F, so as to form, if desired, an open space between said roller and the front of the frame or housing, so as to prevent chips from clogging the smaller roller.
- Patent No. 146,500 of January 13, 1874, where a roller is shown connected to a frame pivoted to the frame of the machine, and in front of this roller is placed a spring presser-bar, to hold down the lumber. I disclaim such patent.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
2 Sheets--Sheet 1.
Patented March 3,1874.
LNVENTOR WITNESSES. J ZZWQC C WQ Attorneys.
w. 0. Home".
Planing-Machines. N0 148 213. Patente d March 3.1874.
WITNESSES. IJVVEJVTOR JZZKW J QJLW. w: L
.dttorneys.
2 Sheeis Sheet 2.
UNITED STATES VILLIAM C. HORTON, .OF SALEM, MASSACHUSETTS.
IMPROVEMENT IE! PLANiNG-MACHINES.
Specification forming part of Letters Patent No. 148,213, dated March 3, 1874; application filed I February 31, 1874.
To all whom it may concern:
Be it known that I, WILLIAM G. HORTON, of Salem, in the county of Essex and in the State of Massachusetts, have invented certain new and useful Improvements in Planing-Machine; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.
The nature of my invention relates to devices used for holding the lumber to be planed firmly down upon the bed of the machine, to prevent the knives from lifting the lumber, and thereby cause it to become wavy and it consists in the employment of two rollers of unequal diameter, the smaller one being located close to the path of the knives, while the larger is farther away from it. It also consists in the construction and arrangement of the devices in which said rollers are placed and supported, all of which will be hereinafter more fully set forth.
In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawings, in which-- Figure 1 is a side elevation of the bed and standard, with the cutting-roller of a planingmachine with my invention attached thereto. Fig. 2 is a transverse vertical section, Fig. 3 a plan view, and Fig. 4 a rear elevation, of the same. Fig. 5 is a bottom view of the rollers, with the devices for holding them.
A represents the bed-plate of a planing-machine, with standards B B, in which the journals of the cutting or knife roller C have their bearings. On the inner side of each standard 13 is pivoted the front end of an arm, D, the pivot-point being located in front of and a trifle above the axis of the knife-roller O. The arm D, from this point, curves over the jour nal of the roller 0, and downward in rear of the same, and rests against a stop, a, on the inner side of the standard B. At this point the arm D turns, and extends straight toward the rear. At the angles or bends of the arms D D is pivoted a frame or housing, E, which is provided at the rear, on each side, with an arm, b, which rests upon an arm, (1, extending from the rear side of the standard B, to prevent the frame from falling down too far. In suitable bearings in the frame or housing E are placed two rollers, G and G, which are of unequal diameters, the larger one, G, being in rear, and the smallerone, G, in front. This latter roller is arranged ona line with the axis upon which the frame turns; or it may be a little in front or rear of said axis and the frame is so arranged that the roller G will bear upon the lumber close to the path of the knives, while the larger roller, G, is in rear thereof. On top of the frame is one or more springs, H, bearing against a cross-bar, I, which connects the two standards B B. This spring (or springs) may be of any desired or suitable construction, so as to exert the required pressure upon the rollers to hold the lumber firmly down upon the bed. The rollers G and G have each one or more .bearings turned on them at suitable distances from the ends, so as to be supported at one or more places between the ends, thereby overcoming any liability of the rollers springing upward from the lumber.
In most planing-machines now used, the knife-roller is arranged in such a manner as to be adjusted vertically up and down; and in such case the various devices above described are arranged to move up and down with the roller, so that they will retain their relative positions during any change in the positions of the knife-roller.
When lumber is first passed under the rear roller G, it will be seen that this roller is allowed to rise a short distance without interfering with the inside roller G, until certain stops or projections i i on the ends of the frame E strike the under side of the arms D D, when both the rollers will rise together. The inde pendent motion of the two rollers compensates for the unevenness of the lumber. The smaller roller, G, being located close to the path of the knives, holds the lumber firmly to the bed, preventing the knives from lifting the lumber up, which would make the surface thereof wavy.
The smaller roller, G, is supported or has its bearings in extended arms h h, formed on or attached to the frame F, so as to form, if desired, an open space between said roller and the front of the frame or housing, so as to prevent chips from clogging the smaller roller.
I am aware of the existence of Patent No. 146,500, of January 13, 1874, where a roller is shown connected to a frame pivoted to the frame of the machine, and in front of this roller is placed a spring presser-bar, to hold down the lumber. I disclaim such patent.
Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
1. I11 combination with the large roller, G, secured in a housing, E, pivoted to the frame of the machine, the small pressure-roller, G connected to the rigid extended arms h h close February, 1874:.
YVILLIAM O. HORTON. YV'tnesses:
A. N. MARK, J. TYLER POWELL,
Publications (1)
Publication Number | Publication Date |
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US148213A true US148213A (en) | 1874-03-03 |
Family
ID=2217626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US148213D Expired - Lifetime US148213A (en) | Improvement in planing-machi |
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US (1) | US148213A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2780254A (en) * | 1955-05-05 | 1957-02-05 | Williams & Hussey Machine Corp | Hold-down rollers for planers and the like |
US2801656A (en) * | 1951-08-10 | 1957-08-06 | Ford Robert Sedgwick | Universal work holder for saws and other woodworking machines |
-
0
- US US148213D patent/US148213A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2801656A (en) * | 1951-08-10 | 1957-08-06 | Ford Robert Sedgwick | Universal work holder for saws and other woodworking machines |
US2780254A (en) * | 1955-05-05 | 1957-02-05 | Williams & Hussey Machine Corp | Hold-down rollers for planers and the like |
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