US315510A - Pressure and feed mechanism foe wood planees - Google Patents

Description

(No ModeL) 2 Sheets-Sheet 1.

J. KANE. I PRESSURE AND FEED MECHANISM FOR WOOD PLANERS. N0.315,510. Patented Apr. 14,1885.

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J. KANE. PRESSURE AND FEED MECHANISM FOR WOOD PLANERS. No. 315,510. Patented Apn. 14, 1885.

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UNITED STATES PATENT] OFFICE. 1A

JOHN KANE, OF ROCHESTER, NEW YORK, ss enon TO JAMES s. GRAHAM g a co, or SAME r AoE.

PRESSURE AN-D FEED MECHANISM FOR WOOD-:P LANERS.

SPECIFICATION forming part of Letters Patent No. 315,510, dated April 14,1885.

7 Application filed September 16, 1884. (No model.)

10 wood-planer provided with pairs or sets of feed-rollers for the boards to be planed turned with positive motion substantially in the usual manner, each roller of a pairbeing of larger diameter at one end than at the other, said larger and lesser parts of the rollers being truly cylindrical with a jog or offset midway the length of the roller between the two unequal parts thereof. Usually in these improved planers two sets or pairs of rollers are used, between which the boards pass before reaching the knives, and in mounting the rollers their large ends are placed adjacent or opposite each other in each pair while the large ends of the rollers in either pair are opposite the small ends of those in the other pair; also, to provide an improved'pressure-bar broken or divided at the middle into independent sections, each being adjustable or movable independently of the other, the object of the rollers thus formed and independently movable section of the pressure-bar being to admit of two boards of unequal thickness being surfaced'simultaneously in the planer.

Referring to the drawings, Figure 1 is a side elevation of a part of the bed of a woodplaner, showing the feed-rollers, cylinder, pressure-bar, and other parts in place, some more common parts of the planer not essen A tial to the descriptionbeing omitted; Fig. 2,

a plan of the sameviews, as indicated by arrow min Fig. 1, drawn to show more clearly the form of the rollers and the operation of the divided pressure-bar, parts being broken away to uncover parts beneath, and other parts common to similar machines not essential to the description omitted; Fig. 3, Sheet 2, an elevation of l the pairs of feed-rollers viewed as indicated by arrow y in Fig. 2,

showing the manner in which said rollers operateupon boards of difierent thicknesses,parts being sectioned and other parts omitted; Fig. 4, an elevation of the divided pressure-bar A viewed from the same direction in which Fig. 3 is seen, a part at one end of one of the press A ure -shoes being longitudinally sectioned to show the manner in which the latter is hung, one side or section .of the pressure-bar being shown in dotted lines as being raised; and Fig. 5, drawn to a larger scale, an end elevation of the pressure-bar, showing more clearly -its form and adjustments viewed as indicated by arrow z in Fig. 4, parts being broken away and otherpartsshown in full-line and dottedline positions. Fig. 6 is a detached section of one of the plates h and a portion of one of the suspending-bars, showing the relation of said bar to said plate.

Referring to the parts, A is theuframe of the machine; B, the posts for supporting the feedrollers, and O the cutter head or cylinder, all 7o 1 substantially of common. form. The feedrollers D are supportedat the ends in verticallyadj ustable journal-boxes b, substantially in the usual manner, and the cylinder is held l in bearings d, secured to standards F of the ordinary bed-plate, G.

Each feed-roller is made a continuous single piece of larger diameter at one enrLthan at the other, it being composed of two cylindrical parts, f and g,with a jog at a midway the length of the roller.

In making up the pairs -as, for instance, the one atH-the larger ends f f of the two rollers are placed next to or opposite each other, and I the rollers of the pair at I are similarly arranged, with the large ends of the rollers, however, on the other side of the machine or opposite the small ends of the rollers in the pair H. From this. construction of the rollers it will a be understood thatwhen a board, K, is .put

reduced parts thereof, andwhena ,boar d,lL, is

put through at the other sideof vthesmachine it will pass untouched between the rollers of the pair H, but will beurged along? by the rollers of the pair I. Now, it will beseen that; l

by vertically adjusting the different pairs of A roo arranged to press upon the upper surface of the board and the other to press on. the under iosurface of the same, as shown, and are operated and adjusted in the manner usual to woodplaners,

I employ a pressure-bar for the boards having the pressureshoe divided midway of its length into sections, each capable of having an independent vertical movement, each, also, having a vertical pivotal movement upon its centers or bearings, which admits of each shoe being adjusted. to press independently upon the board passing beneath it. In the construction shown two hangers, N, are fitted to turn upon the respective inner projecting ends of l the journahboxes d, holding the cylinder, each of which hangers is secured by bolts 2' to a plate, h, reaching across the machine from one hanger to the other. Upon this plate are fitted four similar suspending-bars or suspenders, k, for the shoes crossing said plate vertically, one near each end thereof and the 1 other two near the middle of the plate. Each of said suspenders extends some distance below the lower edge of the plate with its lower free end turned toward the cylinder and under the sweep of the knives thereof, as shown in Fig. 5, the dotted curve 10 in said figure indicating the circle followed by the edge of the knives as the cylinder is turned upon its axis. Each one of the bars 7c is provided at its lower free end with a horizontally-projecting pin, Z, and a pressure shoe or bar, it, reaches across between either two opposing bars k, the respective pins Z entering into suitable cavities formed in the ends of the shoes, upon which hearings or pins said shoes are permitted to tilt or turn vertically, as indicated in dotted position in Fig. 5. This rocking or pivotal motion of the shoes permits them 'to adjust their lower flat surfaces squarely against the surface of the passing board. These suspending-bars k are held relatively in position by means of tie-bars 0, rigidly secured to them at points opposite the lower edge of the plate h, and cap-pieces 12, secured at their upper ends. These bars are also each provided with a notch, r, Fig. 5, in which to receive the lower edge of the plate h,a lip or ridge, 8, of each bar extending upward on the inner side of said plate for the purpose of assisting to hold said bars in place against the plate. The cap pieces 1) are each provided with downturned members or flanges t, which lap or hook over on the inner side of the plate 7z,as shown. The notches r are out sufficiently deep in the bars 7: to leave a space in each bar below the lower edge of the plate h, by means of which the pairs of bars It may be each raised vertically along their respective bearings against the plate, as indicated by dotted lines in Fig. 5.- This vertical movement of the bars with their tie-bars, cappieces, and shoes permits the latter to readily adjust themselves to any inequalities in the lumber as it passes under them, or to difi'en ent thicknesses of boards. Thus constructed and hung, the pressure-bars with their shoes serve to hold the boards snugly down at all times against the bed-plate of the planer. A handle secured at the middle of the plate It on the side opposite the cylinder affords a means by which the whole mechanism constituting the pressure-bar may be raised or turned up over the cylinder to a position indicated at S in Fig. 5,for the purpose of making repair or for other purpose. The handle is bent, as shown on Sheet I, and carried across the arched bar T of the set I of rollers, and an adj usting-screw, a, passing th rough the handle, having its point resting upon the bar T, serves to regulate the distance the plate It is lowered when. brought down to engage the lnniher as the same passes through the machine. Other bent arms, 1 similar to the lever O, secured to the respective cap-pieces p of the sections of the pressure-bar also reach across over the arched bar T, having adj ustingscrews c a passing through them with the points of the screws resting upon the bar T also. Weights eeare placed upon the arms P. The ofiice of these weightedarms is to hold the sections of the pressure-bar firmly down upon the boards, and the adj usting-screws c c serve to regulate the distance the pressure-bars drop down toward the bed-plate. The shoes n are hollowed out at their upper sides by deep longitudinal grooves, as shown at c in Fig. 5, forming two ridges or edges, 8 and r, the lower edge of the plate It dropping partially within said grooves. As the shoes turn upon their pivotal bearings, as above stated, the edges 8 and '0, striking against the plate h, form stops for the shoes to prevent their being turned too far in either direction. v

a represents the usual gears connecting the rollers of each set,so that both rollers shall be caused to turn uniformly in opposite directions, positive motion being communicated to the rollers to turn them independently of the boards passing between them.

that I claim as my invention is- 1. A wood-planer provided with feed-rollers, each made continuous and of larger di ameter at one end than at the other, said larger and lesser parts of the rollers being cylindrical, and the rollers turned or driven by substantially the usual positive-motion mechanism independently of theboards passing between them to urge the boards against the cutters, substantially as set forth.

2. A wood-planer provided with cylindrical feed-rollers made larger at one end than at the other, put together in sets or pairs in such manner that the larger ends of the two rollers in either pair shall be adjacent or vertically 1 one pair shall be horizontally opposite the small ends of those in the other pair, said rollers being rotated by positive-motion mechanism independently of the passing boards in substantially the usual manner, substantially as and for the purpose set forth.

3. A wood-planer provided with cylindrical iced-rollers made of larger diameter at one end than at the other, substantially as shown, put together in' pairs with the large ends of the rollers of each pair together or vertically opposite, the large ends of the rollers in eitherpair being horizontally opposite the small ends of those in the other pair, and a pressure-bar provided with a divided shoe for pressing upon the boards as they pass through the planer, each part or section of the shoe being suspended or held so as to independently adjust itself to the surface of the board beneath it, substantially as and for the purpose set forth.

4. A wood-planer provided with cylindrical feed-rollers made of larger diameter at one end than at the other, substantially as shown, put together in pairs with the large ends of the rollers together or vertically opposite, the large ends of the rollers in either pair being horizontally opposite the small ends of those in the other pair, and apressure-ba-r formedin independent parts or sections, each provided 0 a, vith a shoe for pressing upon the boards as the latter pass through the planer, each part or section of the pressure-bar being provided with a weighted lever, substantially as and for the purpose set forth. 3 5

5. A wood-planer provided with cylindrical feed-rollers made larger in diameter at onefi end than at the other, substantially as shown, put'together in pairs with the large ends of the rollers in either pair adjacent or verti- 0' i cally opposite and horizontally opposite the small ends of those in the other pair, and a pressure-bar formed in independent parts or sections, each provided with ashoe for pressing upon the boards as the latter pass through 4 5 the planer, each part or section of thepressurebar being provided with a weighted lever and an adjusting-screw for the latter to regulate the distance the section of the pressure-bar descends, substantially as specified.

JOHN KANE. Witnesses:

' E. B. WHITMORE, M. E. FURLONG.

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