US783223A - Metal-planing machine. - Google Patents

Description

No. 783,223. PATENTED FEB. 21, 1905. H. ROBINSON.

METAL PLANING MACHINE.

APPLICATION FILED AUG. 10,1903.

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PATENTED PEB.21,1905.

H. ROBINSON.

METAL PLANING MACHINE.

APPLICATION FILED AUG. 10,1903.

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No. 783,223. PATENTED FEB. 21, 1905. H. ROBINSON. METAL PLANING MACHINE.

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H ROBINSON METAL PLANING MACHINE.

APPLICATION FILED AUG. 10.1903.

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H. ROBINSON.

METAL PLANING MACHINE.

APPLICATION FILED AUG. 10, 1903.

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UNITED STATES Patented February 21, 1905.

PATENT l EicE.

HANSON ROBINSON, OF HANOVER, PENNSYLVANIA, ASSIGNOR TO AMERICAN FOUNDRY & MACHINE COMPANY, OF HANOVER, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

METAL-PLANING MACHINE.

SPECIFICATION forming part of Letters Patent No. 783,223, dated February 21, 1905.

Application filed August 10, 1903. Serial No. 168,967-

[0 (11/7 whom it may concern:

Be it known that I, HANSON ROBINSON, a citizen of the United States, residing at Hanover. in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Metal-Planing Machines, of which the following is a specification.

This invention pertains to that class or type of metal-planin g machines known in the trade as open-side planers wherein the horizon tal beam overhanging the bed and carrying the tool-head is sustained wholly at one end and from one side of the bed. The present improvements are directed to a secondary or supplemental tool-head carried upon the main post or standard and wholly independent of the overhanging beam and of the tool-head carried thereby.

In the accompanying drawings, Figure 1 is a front elevation of the main upright or standard of the planer-frame, showing also the overhanging beam, the special guide or support for the secondary tool-head, and the two tool-heads; Fig. 2, a perspective view of the same; Fig. 3, a perspective view, on a larger scale and with parts broken away, showing the main standard with its special guide or upright for the secondary tool-head and the overhanging beam detached or removed from its ways on the standard; Fig. 4:, a vertical section on the line 4: 4 of Fig. 1; Fig. 5, a section, on a larger scale, on line 5 5 of Fig. 1; Fig. 6, a section on the line 6 6 of Fig. 1; Fig. 7, a top plan view of the standard and beam, the former partly in section and the cap of the gear-case removed; Fig. 8, a horizontal section on the line 8 8 of Fig. 1.

In planers of this class it is desirable that any and all adjustments of the beam and its tool-head may be made without disturbing or affecting the position or adjustment of the supplemental or secondary tool-head and that :each tool-head shall be adjustable independently of the beam.

rily in view I adopt the construction illus- With this object primatrated in the drawings and which I shall now explain with the aid thereof.

The planer comprises the usual main frame or bed A, upon which is seated the sliding work-table B, and at one side a standard C, which supports and guides the beam D, arranged to extend across or overhang the table, as indicated in Fig. 1. The standard is of substantial construction to give stability and afford adequate support for the beam, its toolhead, and tools under all working conditions with the customary factor of safety. The front face of the standard is formed or furnished with a heavy vertical rib a, of dovetail form, which constitutes a guideway for the beam D, which latter is fitted accurately to said guideway, the customary gib 6 being employed at one side. Any other usual or suitable form of guide may of course be adopted; but this is preferred. The beam is cast and may be in one or in several pieces, as

found expedient. Ithas a long horizontal arm or portion extending laterally from the guiding portion at the standard C outward over the table B at a right angle to the line of travel of the latter, and'this arm is formed or provided with horizontal guides to receive and guide a tool-head E. This tool-head is traversed along the guides by means of a screw-shaft F, swiveled or journaled in bearings in the beam, and the tool-stock, which is pivoted or mounted to swing upon the toolhead about a horizontal axis, is adjusted and controlled by means of a second shaft Cr, similarly mounted in the beam and running from end to end thereof parallel with screw-shaft F. A traveling or flanged pinion splined or feathered upon shaft Or and meshing with a pinion on the pivot-stem of the tool-stock or other usual connection serves to transmit motion from shaft G to said tool-stock in a manner common and well understood; hence unnecessary to be here illustrated or specifically described. In brief, the beam is in its general features of ordinary construction, and to give adequate support to the overhanging arm the guiding portion is advisably extend ed downward below the arm and given a long guiding-bearing on the rib (L. This is a common expedient in drill-presses, planers, and like structures and involves merely the skill and judgment ofv the designer or mechanic. The usual gear is employed for raising and lowering the beam, and this may be similar to that for the secondary tool-head, which will be presently described.

H indicates a vertical guide-bar or supplemental post or standard spaced out or set away from the main standard C, but connected therewith at or near its upper and lower ends. It is of a form similar to the guideway a, and is designed to receive, support, and guide a secondary tool-head I of the same character as tool-head E. Bar-H is vertically or longitudinally recessed to receive a long screw J, which at its lower end is suitably clamped or secured in place therein and held against rotation or other movement. Swiveled in a rearward projection of the tool-head I is a nut K, internally threaded to fit screw J and formed or furnished with a worm-wheel d. Meshing with worm-wheel (Z is a worm or screw .0, carried by a shaft L, swiveled or journaled in bearings carried by the tool-head I, and consequently maintaining fixed relation to said tool-head. By rotating the shaft through the medium of a suitable hand-Wheel or otherwise the worm is turned and is caused to turn the worm-wheel d, thus rotating nut K and causing the tool-head to rise or fall as the nut screws upward or downward upon the screw J. The worm-gear holds the parts in adjusted position, though, of course, any usual clamping device may be added, if desired.

The usual tool-stocks and tools, bits, or cutters will be employed, and parts not specifically described or separately illustrated may be of common construction and arrangement.

Under the construction thus set forth the beam may'be raised and lowered and the toolhead 1*) may be shifted laterally or turned to any angle required, all without in any manner disturbing or affecting the tool-head I and its tool-stock and tools. Conversely, the toolhead I, its tool stock, and tools may be adjusted as desired Wholly regardless of the beam and of parts carried thereby. In this the present is advantageous over prior openside planer constructions, under which the secondary tool-head I, being carried by the downwardly-extending guiding portion of the beam, necessarily partook of all movements of the beam, and hence had to be read justed whenever the beam was moved. It will be observed, too, that the beam may be wholly removed from the column or standard without disturbing the secondary tool-head I.

When the beam is thus removed, the tool-head- I may be carried higher than would otherwise be possible. In other words, it may be adjusted to the top of its guide-bar or a distance equal to the vertical measurement of the beam proper above the highest point it can reach when the beam is in position. This is a material advantage in working upon the sides or vertical faces of an object carried by the bed or table, and it is a capability not possessed by a tool-head carried upon the depending guiding portion of the beam, as has heretofore been done. A further advantage is found in the greater stability of the independent guide H, which, being wholly independent of the beam, frees the tool-head I from any play or vibration incident to chattering of the tools carried by tool-head E or to other causes.

In the practical and continued use of machines of this sort--that is to say, open-side planersin which the beam is supported whollyfrom one side or end, the wear upon the vertical guideway is uneven and in time there is a tendency of the beam to droop or sag at its outer end. This necessitates truing up, which is commonly done by dressing or truing the guideway of the post and setting up the gib or gibs of the guiding portion of the beam. In order to render open-side planers capable of employing a side head and tool and permitting said tool to be adjusted to a point close beneath the horizontal portion of the beam proper, two plans have heretofore been adopted. According to'one of these plans the beam is constructed with an upwardly-extending guiding portion, but with little or no depending portion, and the side tool-head or saddle is placed directly upon the front of the post or standard, as has for many years been done with the common two-post planers. Under the other plan the beam is cast with a long downwardly-extending guiding portion integral with the beam proper, fitted to the guides or ways on the front of the post or standard and in turn having formed upon the front or outer face asecond guideway to receive the side tool-head or saddle. This latter construction is objectionable in that the wear of one vertical guideway throws it out of parallel or alinement with the other vertical guideway. It is further objectionable because the chattering or vibration of either tool is transmitted through the integral beam to the other tool; but it is especially objectionable because it is impossible to adjust the beam vertically without thereby moving the side head and, assuming it to be properly adjusted, destroying the adjustment thereof. By making the guide-bar or supplemental post H separate from the main post and wholly independent of the beam each vertical guideway is rendered independent of the other, and in the event of it becoming necessary to redress or true either the other is not thereby affected. Again, being independent it is comparatively easy to true and fit each separately, the supplemental post or guideway H being capable of adjustment relatively to the main post and the beam. To permit this to be done, clearance is left between the supplemental post or guideway H and the beam and its depending portion. This is best illustrated in Fig. 8, which is designed particularly to bring out this feature. On the small scale on which the drawings are made this clearance would be practically unobservable,and hence no attempt has been made to indicate it in the other figures. It is, however, usually provided, since thereby the necessity of accurately fitting not only the guideways upon which the beam and the side saddle are respectively mounted and guided, but also the proximate surfaces of the supplemental post and the beam, is avoided. With two-post planers there is little if any need for the depending guiding extension, because the beam is supported at both its ends, and may be thus adequately supported and guided, whereas with the overhanging beam a long vertical guiding extension has been found necessary and has always been provided from the earliest introduction of open-side planers. ing portion it is necessary in order to adjust the side head to a point close beneath the horizontal portion of the beam to place the guiding extension above the beam, which in turn necessitates an undue height of post or standard, to mount the side tool-head directly upon the depending portion with the disadvantages inherent in such an arrangement, or to provide some other support for the side tool-head. This latter plan constitutes the gist of the present invention. By the use of the supplemental post or standard the beam-sustaining effect of the depending guiding portion thereof is retained and availed of, while the disadvantages of having the side tool-head mounted upon the beam or any portion thereof are completely overcome. A larger amount of work can be performed in a given time with a machine constructed as here set forth because of the independence of adjustment of the beam and side tool-head, permitting the side toolto continue cutting while the beam is being adjusted and permitting the upper tool to continue cutting while the side tool-head is being adjusted, there being no interference of one with the other. Incidentally the two screws by which the beam and the side head, respectively, are adjusted are brought one in front of the other instead of being in a plane parallel with the front face of the post or guideway, thus avoiding excessive width and undue cutting away of the guide-post to receive the screws. So, too, the screw by which the side tool-head is adjusted vertically is under my construction fixed in position and not influenced by nor permitted to influence the adjustment of the side tool-head through the vertical adjustment of the beam.

It will thus be seen that the invention has special reference to open-side planers and that the conditions obtaining in the use of such a planer are essentially different from those attending the use of the two-post planer. The construction set forth overcomes the difiiculties present and inherent in open-side planers, but not found in two-post planers.

With such extended vertical guid It will' be observed that the supplemental post or guideway H, which carries the side tool-head, is out of plane with the depending extension or guiding portion 6 of beam D, so that said extension may move up and down without engaging with the side tool head or carrier I, and that said carrier I may move up and down without engagementor conflict with the said depending guiding portion I). ,In the drawings I have shown the supplemental post or guideway spaced out from the front face of the main post or standard C and deem that the most advantageous position for it; but the location is relatively unimportant, provided it be out of the path of the depending guiding portion 6 of the beam and support and guide the side tool-head out of plane with said part b and at the same side of the bed or table B on which the main post or standard is located.

So far as I am aware I am the first to employ a supplemental or secondary post, standard, or guideway at the same side of the table as the main post or standard of an open-side planer and to mount the side tool-head thereon wholly disconnected from the beam or any part thereof, and this I mean to claim.

Having thus described my invention, I claim 1. In a planer, the combination of'a bed or base; a work-table; a main post or standard at one side of said bed and table; a beam overhanging the table and provided at one end with a depending guiding and supporting member carried and guided upon ways on the main post or standard; a tool-head carried by the horizontal portion of the beam; a secondary or supplemental post or standard rigidly secured to the main post or standard out of plane with the depending guiding portion of the beam;' and a second or side tool-head mounted and adjustable upon the supplemental post or standard, out of the plane of movement of said depending guiding portion and wholly independent of said beam.

2. In an open-side planer, the combination of a bed, a table, and a standard at one side of said bed and table; a beam carried by said standard, overhanging the table, and having a guiding portion fitting a guideway upon said standard; a supplemental post or standard at the same side of the bed and table as the main standard but set away therefrom to permit the guiding portion of the beam to pass clear of it; and a second or side tool-head, mounted upon and guided wholly by the supplemental standard, out of plane with the guiding portion of the beam.

3. In a planer the combination of a bed and post or standard at one side thereof; a table; a beam overhanging the'bed and table, supported and guided by the standard at one side only and removable from the standard; a tool- ICC standard or guideway secured to but spaced away from the main standard; and a second- In testimony whereof Ihave signed my name ary tool-head mounted and adjustable upon to this specification in the presence of two subthe supplemental standard, Wholly independscribing Witnesses.

ent of the beam, and out of plane With the I HANSON ROBINSON. 5 guiding portion thereof, and adapted, when Witnesses:

the beam is removed, to be adjusted to the top WILLIAM W. DODGE,

of the standard. HORACE A. DODGE.

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