US413685A

US413685A - Machine

Info

Publication number: US413685A
Authority: US
Publication date: 1889-10-29
Anticipated expiration: 1906-10-29

Description

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.S. J. SHIM-ER. WOOD WORKING MACHINE.

No. 413,685". Patented 0011.29, 1889.

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UNIT D STATES PATENT FFICE.

SAMUEL J. SHIMER, OF MILTON, PENNSYLVANIA.

WOOD-WORKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 413,685, dated October 29, 1889. Application filed April 30, 1888. Serial No. 272,252. (No model.)

Be it known that I, SAMUEL J. SHIMER, a

citizen of the United States of America, re-

- gear to run the said roller.

siding at Milton, in the county of Northumberland'and State of Pennsylvania, have invented certain new and useful Improvements in VVood-Workin g Machines, of which the following is a specification.

My invention has relation to wood-working machines of that class known as planers; and the objects are, first, to improve the construction and operative mechanism of existing machines of the kind, and especially to improve the operative utility of that certain planer shown and described in Letters Patent issued to me under date of the 11th day of October, A. D. 1887, and numbered 371,380; second, to so change and improve the elements of the machine shown and described in said cited Letters Patent that it will be adapted to surface planing or dressing both sides of a piece of stuff at one passage through the machine.

I have hereinafter fully described the manner of constructing my improved planer, and have particularly pointed out and distinctly claimed the parts, improvements, and combinations of elements which I claim as my invention. i v

I have also clearly illustrated my improved planer in the accompanying drawings, forming part of this specification, wherein- Figure 1 is a perspective view of the planer looking from the front. Fig. 2 is a perspective, looking from the rear, thebed-plates be ing removed. Fig. 3 is a longitudinal sectional view in elevation, taken on the lineX X of Fig. 1, showing one of the carrying-arms of the matcher-spindles, the arrangement of the chain in part, and the application of my improved shifting means and lock-bar to move and set the carrying-arm in any desired position. Fig. 4t is a longitudinal sectional view in elevation on the line X X of Fig. 1, showing the arrangement of the feed-rollers, the planer-heads, and the arrangement of the drive-chain, with the idler to carry the chain free from the lower rear feed-roller and the Fig. 5 is a side view of the upper feed-rollers. Fig. 6 is a central longitudinal 'sectionof the same. Fig. 7 is a side view of the lower rear feed-roller. Fig. Sis a central longitudinal section of the same. Fig. 9 is a side View of a lower rear feed-roller to which a ratchet and pawl are applied. Fig. 10 is a longitudinal central section of the same. Fig. 11 is a perspective of my improved two-part presser-bar applicable to the rear part of the planing mechanism. Fig. 12 is a transverse section of the same on the line a b of Fig. 13. same. Fig. 14 is a perspective of a modified construction of the presser-bar. Fig. 15 is a front View of the front presser-bar. Fig. 16 is atop view of the same. Fig. 17 is a view of the sliding bracket and holder for the front presser-ba'r. Fig. 18 is a perspective of the ch ip-brake and tension-lever, which is shown applied in Fig. 1 on the planer-bed. Fig. 19 is a section of the adjusting means of the tensionlever. Fig. 20 is a transverse section on line 0 d of Fig. 18. Fig. 21is aview of the line of beltpulleys. Fig. 22 is a central longitudinal section of the same. Fig. 23 is a perspective of the bearing for the idlers and driving-pulleys, which are connected by belts with the spindles of the matchers. Fig. 24 is a view oi the belt-rolling pulley and cover, the latter being shown removed from its position on the pulley. Fig. 25 is-a detail view of the shifting and setting bars of the carrying-arms. Fig. 26 is a perspective of a portion of the machine-frame and one ofthe carrying-arms and of the cross-piece which carries the inner end of the carrying-arm and matcher-heads, showing the chip-break in its relation to the matcher-head.

Where the same elements or parts are shown in different figures of the drawings, they are designated by the same notations, and, reference being thereto had, Adesignates the frame of the machine, made of substantial' cast metal and composed of side pieces 1 2, formed with legs seated on the bindingplates 3 4 and secured thereto, substantially as seen in the drawings. The front ends of the side pieces are formed with plates 5, forming parts of the bed-plate at that end of the machine, and at the lower part the side pieces are connected by'a cross-plate 6, secured to them. To the end of one side piece is hinged an end gate 7, which is formed with a hori- Fig. 13 is a back view of the zontally-arranged plate 8, which, when the end gate is closed, fits between the plates 5 and completes the bed at that end of the machine.' The end gate may be locked byabolt 9, let through the side piece and projecting into a socket-in the end of the end gate. This construction permits access to the planerhead at that end of the machine for the purpose of sharpening or adjusting the bits. The rear ends of the side pieces are connected bya plate 10, secured thereto, and formed with a longitudinal slot 11 to take the necks of the short shafts which carry the operating-gear for shifting and setting mechanism of the carrying-arms of the matcher-head spindles. The upper edge of the plate is formed with an inwardly-projecting flange 12, which sets within the recess in the end of the carrying-arms, as seen in Fig. 3 of the drawings.

On the side pieces of the frame are secured the carrying-bed, consisting of metal plates 13, formed with holes in them to let dirt and chips fall through, and arranged with spaces between their adjacent side edges to admit the bolts which secure the gage-bar to the carrying-arm, and thus permit the gage-bar and carrying-arm to be moved at the same time. The side pieces of the frame are formed with the requisite apertures and seats to take the bearings of the respective shafts and other adjuncts.

The letters B B designate the adjustable carrying-arms, in the forward ends of which are mounted the vertical spindles 14, on which the matcher-heads are secured. These carrying-arms are held at their rear ends on the flange of the end piece of the frame by means of a recess 15 engaging the said flange, and at the front end are held by means of flanges 16, engaging recesses 17 in the cross-piece 18, arranged across the frame, substantially as indicated in Fig. 3 of the drawings.

The description of the machine thus far is substantially that of the machine shown and described in my said cited Letters Patent, and the construction of the parts mentioned is similar, except in the respect now to be specified.

The peculiar construction of the carryingarms, in view of the high rate of speed given to the mechanism, gives more or less vibration and shake to the spindles of the matcherheads, which is communicated to the matcherheads, tending to make uneven and unclean cuts. To obviate this difficulty, I have devised the following-described constructions and mechanism:

In bearings 19 20 on the side face of the carrying-arms I mount a tubular shaft 21, which is for the purpose of shifting the carrying-arm to which it is attached, and has the same mechanism as described and shown in the said cited Letters Patent, consisting of the sliding bracket 22, having the arm 23, through the lower end of which and carried through the slot in the cross-piece is a short shaft a,

having its end j ournaled to the carrying-arm, as shown. On this shaft ismounted a small gear-wheel 24, which meshes with a small gear-wheel on the tubular shaft 21, on the other end of which is another small gearwheel 26, which meshes with the rack-bar 27 on the cross-piece 18 of the frame. By applying a crank to the projecting end of the small shaft 0/. the arms may be shifted, as specified in my said cited Letters Patent.

To set the carrying-arm in any position to which it may be shifted and to prevent the vibration consequent to the movements of the revolving mechanism, I form the cross-piece 18 with a substantial depending flange 27*, and in the face of the flange I form a V- shaped groove 28. In the bore of the tubular shaft 21, I arrange a setting-bar 29, having'a steel point, so that the end projects from the tube into the groove in the flange of the crosspiece, and in the outer end of the tubular shaft is fitted a threaded bar 30, which engages threadsin the bore of the tubular shaft, as at 31,and on the end of the bar 30 which projects beyond the end of the machine is mounted a hand-wheel 32 or other similar device for turning the screw and setting the setting-rod with its end in its seat in the flange of the cross-piece. By shifting the carryingarm on its gearings and then screwing in the setting-rod, so that its beveled end will engage the groove in the depending flange of the cross-piece, the carrying-arm will be also set in position and there firmly held against the usual tendency to vibrate, and so that it cannot shift by the action of the vibrations or other automatic inducements of the machine. The rear ends of the carrying-arms are set in position by the set-screws 33, as heretofore.

On the line-shaft 34, mounted at the rear end of the machine, are the belt-pulleys 35 36, which take the belts which are carried about the belt-pulleys 37 on the spindles of the matcher-heads. I The belt-pulleys 35 36 have each a loose pulley 38, arranged at the end to take the belts when the matcher-heads are not in operation by being shifted to the right and left from the stuff and out of the line of cut, in which action the belts are slipped from the tight pulleys to the loose pulleys, and thus stop the matcher-heads and slack the belt, the loose pulleys being of less diameter than the tight pulleys. The loose pulleys are each mounted on bearings consisting of aseparate sleeve 39, (see Fig. 22,) in which the line-shaft is arranged and turns freely and clear of the interior surface of the sleeve. These sleeves are secured to the inner faces of the side pieces of the frame by means of abracket 40,

cast on a bearing 41, on which the line-shaft is mounted. By this construction and arrangement the loose pulleys never revolve except when the belt is slid from the other pulleys onto them, when they make several revolutions under the force of the momentum imparted by the matcher-heads.

In order that the belt will'not drop from the pulleys on the matcher-head spindles when T1 moved from the tight pulleys onto the loose pulleys, I form onthe bracketsof the carryfing-arms a rest .42, arranged at the line of the I: lower end of the pulleyand having a way through it to take the spindle of'thematcherhead, and .on this rest the belt rests when slacked. The sleeves of the loose pulley serve as centering means for rebabbitting the line-shaft bearing, after it has worn, a shell,

as4 3, being slipped on the shaft within the 3 i j sleeve of the loose pulleys, when the Babbitt metal can berun in the bearings and the i alignment of the shaft maintained. 7 Another improvement relates to the 'con- "structionof thefeed-rollers of the machine and the arrangement of the driving-chain. The underfeed rollers are designated by nunierals 44 '45, and the upper ones by 46 47. The lower feed-rollers are mounted in station-v arybearings arranged on the frame of the machine, and the upper ones are carried in vertically-adjustable hearings in the arms of vertically-adjustable brackets 48, held in flanges in the sides of the frame and adjusted bymeans of a threaded stem 49, journaled in a bearing50 and having a bevel-gear on the upper end, which meshes with a similar gear 51 on a shaft 52 across the machine. The drive-chain 5 3 is arranged on the feed-rollers substantially as shown,"and is driven by a l shaft 54, having small sprocket-wheels 55, the chain being held in automatic tension and adjustable relation on the rollers by a sliding spring-pulley or idler 56. The rear cutter-head or planer-head is carried-in hearings in the vertically-adjustable brackets. This construction and general arrangement is the same as that described and shown in my said citedLettersPatent. I have, howi ever, materially and radically changed the construction of the'feedmollers to more oer tainly and efficiently adapt them to overcome the exigencies of varying;thicknesses of a single board, or those which are more prominent when twoboards are run through'the machine at the same time, and have also I changed the gearing of the lower rear feedroller and the relation of the chainto give the said roller a positive and yielding function and to relieve it from frictional resistancewith thelchain." I On a bearing 57, fixed in and projected inwardfrom the side of the frame, is mounted a small sprocket-wheel 58, which meshes with the chain, as shown, and is fixed to a small gear-wheel 59, which meshes with a gear on the neck of the lower rear feed-roller, substantially as shown in Fig. 4 of the drawings.

To carry the drive-chain free from the neck of thelower feed-roller, and thus relieve it from frictional force of the'chain, and leave the gear in union and travel with the. downward progression of the drive-chain, I mount on a bearing onthe sideof the machine an idler 60,having a channel in its circumferential face in which the chain travels. This idler is arranged in any position in relation to the lower feed-roller which will carry the chain free from the neck of the roller and yet keep the chain in proper relation to'the other rollers. I have shown the idler as located immediately below the feed-roller and slightly to "the rear of it, as that position probably maintains the direction of the chain better than otherwise. This gear onthe lower feedroller, in connection with the chain, moves the roller in unison with the other rollers and with the chain, since the drawing-sprocket measures links with the same movement and same regularity. This is not the case with theupper feed-roller,which is in contact with the upper surface of the passing stock provided the board is thicker at one end than at the other, which would raise the upperroller with its bearings and cause it to move with accelerated speed to cover the longer distance in uniform progression, or that the one should be arranged to yield to the other when neces-' saryrather than expend the force to make one slip on the face of the stock being fed, and in order that-the rollers may so yield and afford compensation of retardation and acceleration in the differential movements thus indicated I construct, the lower feed-roller in two parts-an inner solid part and an outer tube or shell arranged thereon and given a limited movement about the inner part; and when the roller is adapted to a machine runnin g double stuff I form the shell in two parts, each covering about the one-half of the length of the body part.

Reference being had to Figs. 7 and 8 of the drawings, 61 designatesa solid shaft or body part formed with journal ends I), on which are mounted the small gears 62, arranged with -a chain-space 63 between the shoulder of the=roller and the gear in which the drive-chain travels, and 64 designates the tubular shell or shells fitted over the solid shaft. The shell is shown divided at the center, as 65, and in the solid shaft are fixed two studs 66, which engage in slots 67 in the shells. It will be perceived. that when the roller is driving the stuff through the machine the pin will lodge against the end of the slot, and that when the upper roller is driven faster than the lower, because of having to travel over the greater distance occasioned by any variance in the thickness of the stuff, the movement tending to push the board faster than it otherwise would move,

the shell on the lower roller will be carried may be made wholly or in part solid, as shown in Figs. 9 and 10 of the drawings, it is essential that the solid part shall be provided with compensating mechanism, and I therefore construct a sleeve 68, which fits over the journal of the roller, and on this sleeve, next to the end of the roller, make ratchets69,which are engaged by two pawls 70, pivoted on the face end of the roller. The sleeve 68 is formed with a gear identical to the gear 62, and has a chain-space, as shown. It will be observed by inspection of the drawings that the engagement of the pawl and ratchet drives the roller ahead; but if the movement of the roller is accelerated by the variance in the thickness of the stock the roller can thereby be carried ahead free of the pawl and ratchet until the variance is overcome. This compensating mechanism of pawl and ratchet may with equal utility be applied to rollers wholly solid.

The upper rear feed-roller 47 and the front or delivery rollers 4.4 and 46 are identical in construction, and consist of .a solid part 71, having projected from one end a mandrel or shaft 72, on the outer end of which is a journal 73, and a shell 7 4, fitted on the mandrel. A small gear is fixed on the neck of the solid portion of the roller, and at the other or shell end is a gear 76, which is formed with a sleeve 77, setting within the shell and secured thereto by pins or bolts 78.

In the shell 7 1 are formed lubricating-ducts 79, which are closed by screw-plugs, substantially as shown 'in the drawings. At a small groove is formed in the circumferential face of the mandrel, and a pin let through the shell with its end seated in the groove to hold the shell on the mandrel when handling the roll. This construction of the rollers gives independent movements to the sections and permits an automatic adjustment and adaptability of the machine to different thicknesses of two boards when being run through the machine at the same time. It also gives independent action to the drive-chains in their relation to the rollers, so that when the rear feed-roller drops off the end of a board on one side of the machine, while the other is feeding its board, the feed on the side that drops off first moves slower until the drivingsprocket takes up the slack occasioned by the drop of the roller.

Another improvement relates to the construction of the presser-bar arranged between the upper rear feed-roller and the upper planer-head. To accommodate this presserbar to the double surface-planer,I make it in two pieces and of such construction as to throw the foot close to the planer-head. The form and constructions are seen in Figs. 11,12, and 13, and, reference being thereto had, 81 82 designate the parts of the presser-bar, identical in their respective conformations and having their outer ends formed with curved flanges 83, which engage in a curved way 84 in the side faces of the arms of the brackets carrying the feed-rollers, and at each end, or at both ends of the respective pieces of the bar, are fixed vertical threaded standards 85, which are arranged in the hollow sleeves of the boxcovers of the rear upper feed-roller, as shown, or a cross-piece arranged over the machine and supported on the said box-covers has the vertical bars fitted in it, as seen in Fig. 14 of the drawings. Where this two-part presserbar is supported by the vertical threaded bars at the ends only, the inner and approaching ends of the two sections are formed with a socket, as shown, and in these sockets is fitted a connecting-bar,which supports the sections at these parts. The sections of the presserbar are formed with a curved inner face, as at 86, which projects the point or foot of the bar well under the planer-head, yet without danger of being struck by the bits in the planerhead. This sectional or two-part construction of the presser-bar adapts it to the exigencies of running two or more boards through the machine at the same time.

The numeral 87 designates the front presser-bar. On the inner face of the adj ustable bracket are formed flanges 88, between which a tongue 89 of brackets 90 engages. These brackets are formed with a groove 91, which takes a tongue 92 on the ends of the presserbar, as shown in Fig. 17 of the drawings. This arrangement enables the presserbar to set close to the planer-head and be adjusted to and from the same. Over the front planer-head is arranged a presser-bar frame of the usual construction, consisting of vertical end standards having grooves 93 on their inner faces and connected at the tops by a cross-bar 94. The ends of the presser-bar 95 are arranged in the grooves of the standards of the presser-bar frame, and threaded bolts 96 are projected from the presser-bar through apertures in the top cross-bar and provided with adj usting-nuts by which the presser-bar may be raised and lowered to suit the work passing over the forward planerhead.

In Fig. 18 of the drawings is demonstrated my improved chip-break and board-guide. This serves as a chip-break to one of the matcher-heads by directing the throw of the chips from the bits, and also acts as a guide which automatically directs theboard to the stroke of bits of the matcher-head. This chip-break and board-guide is formed of a substantial metal bar 97, having a portion threaded, as at 98, which is projected through an aperture 99 in a housing 100, secured to one of the carrying-arms of the machine bya bolt 101, depending from the end. On the bar of the chip-break is fixed a collar 102, and arranged on the bar is a spiral spring 103, the ends of which set against the housing and the collar on the bar.v A nut 104 on the projecting end of the bar limits the throw of the spring and sets the chip end of the break in relation to the matcher-head. About the middle of the length of the chip-break bar is a curved cam or slanting slot 105,which engages with a stud 106, set in the upper face the break is another and similar slot 107, having an open end, as at 108, which engages with a stud 109, set in the cross-piece which carries the spindle ends of the carrying-arms. The chip end of the break 'is curved or rounded out, as at 110, and has a flange 111 .on its upper face to strengthen and widen the chip-surface. The purpose and operation of this chip-break are to protect the board at the point of cut of the matcher-head as its chip end presses inwardly on the edge of the board in front of the out made .by

the 'matcher or side head, this beingthe only point that the pressure for afchip-break is effectual, since it there breaks the chips thatwould otherwise split the. board if of cross-grained material. The oblique slots in the chip-break adapt the latter to be moved obliquely and in the direction of 'its' length simultaneously toward and'from the matcherhead. The spring 103 normally sustains the chip end of the break at the required distance from the matcher-head; but in the event that a board of somewhat excessive width should be fed to the machine the same, by bearing against one side of the chip end of thebreak, will cause the latter to yield laterally against the tension of its spring 103, and'thus prevent the board from binding. As soon asthe board passes, the "spring will force, the chipbreak back to its normal position. The guide end or part of the chip-break may be set to suit the convenience 'of the work beingdone, usually two inches to the leftof the chip end, so that the pressure shall be thrown strongly on the chip-break.

On thevertically-adjustable brackets carrying the upper feed-rollers is mounted the upper planer headll2,being thus adjustable ,with the brackets, in which itvis journaled,

and at the forward part of the machine, in ad-' justable bearings, is the lower planer-head 113,and it is the object to arrange the beltgearing so that both planer-heads shall be run by the same belt. To effect this desired result, I fix short shafts 114 on the opposite sides of the front end of the machine and mount thereon the idler-pulleys 115. On the line-shaftare mounted the driving-pulleys 116 and on the sides of the machine are tightener-pulleys 117 X 118 Now, by arranging the belt or band over the pulley 119' of the upper planer-head and carryin g the lower line over, back,and under the pulley120 of the lower planer-head and the upper line of belt over, back, and under the idlers 115, and

then arranging it 'over the pulleys 116*, with tighteners to increase the friction of the belt,

it will be seen thatI drive both planer-heads with one belt, thus dispensing with the extra pulleys, shaft, and gearing necessary and used in the old way of applying the power to the planer-head's, wherein a separateYpulley and complish' thisthrougli 'the iristrumentality of band were used to drive each head. I ac' the idlers 115, and without these or similar I heads are in the same machine, instead of two, as in the arrangement shown. The idler should be .of su-fficient diameter to span the space necessary to part the belt and deliver it back to the driver.

I not only dispense with expensive and more complicated mechanism by employing a single belt, but I thereby utilize the power more economically than by the old methods.

' To provide means for housing the belt of the planer mechanism when. not in use, or when the machine is in course of transportation or in storage, or when it is desired to run the machine as a single surfacer, I mount on the line-shaft an idler 116, adjacent to the pulley 116 This idler is formed with a broad circumferential flange 117, wide enough to extend over the width of the belt when rolled up and housed within the rim, and on the arm of the idler is a pin 118, to support the belt preparatory to rolling it. To secure the belt in its place within the idler, lugs 119 are provided, projecting inward from the rim and having bolt-holes, and fitted over the side face of the idler is a cover 120, which is secured thereto by bolts 121, as indicated in Fig. 24 of the drawings. To roll the belt it is removed from its pulleys on the machine and then slipped off the pulley on the lineshaft and its loop or double end hung on the pin in the idler and the idler is revolved. This causes the belt to be coiled up within the idler, and to lie snugly therein out of the way. When the cover is attached to the idler, the belt is kept free from dirt, and also in condition for shipment with the machine. When the belt is thus housed, the machineis adapted for use as asingle surfacer, as only one of theplaner-heads will be driven." When the belt is in use in the-manner before described, the machine is adapted for use as a double surfacer. Hence it will be understood that this arrangement of the loose pulley enables the machine to be changed to run as a single surfacer or a double surfacer without the trouble of unlacing the belts, and without stopping the counter-shaft. It will be observed that to run the machine as a single surfacer a short belt must encircle the pulley on line-shaft driving direct to the pulley on the upper planer head. Both the short belt and regular belt are about the line-shaft, and neither can be taken off except by unlacing them. Therefore to get rid of one belt I box it within the idler-pulley in. preference to unlacing it.

' As the widths of the boards being fed to the machine differ and it is necessary to shift the carrying-arms, so that the matcher-heads shall be accommodated to these different widths, it is requisite that some means be used 'wherebythe belt leading to one of the To accomplish this I form on the side face of the carrying-arm a sleeve 122, having its aperture arranged vertically, and provide the sleeve with a set-screw 123. In the sleeve is fitted the upper end of the shifting-bar 124, which extends downward far enough to engage both lines of the belt. These shiftingbars are at the inner edges of the belts, so that when the heads are run close together to match narrow stuff the belts run on the same drum or pulley, in which condition they are apt to climb 011 each other; but these shifting-bars being between prevent their interference, and at the same time are in position to shift the belts from the drum to the loose pulleys when it is desired to stop the matcherheads.

\Vhat I claim is 1. The combination, with the carryingarms of the matcher-head spindles,of a tubular shaft 21 and a setting-bar, as 29, arranged in the bore of the tubular shaft, and a bar to press the end of the setting-bar against the cross-piece of the frame at the forward part of the machine, substantially as described.

2. The combination,with the carrying-arms of the matcher-head spindles, of a tubular shaft 21 in bearings on the carrying-arms, a cross-piece 18, formed with a depending flange 27, having a groove 28 units face, a settingbar, as at 29, arranged in the bore of the tubular shaft with its inner end to engage the groove of the flange of the cross-piece, and a threaded bar in the end of the tubular shaft to set the sctting-bartherein,substantially as described.

3. I11 a planing-machine,theline-shaft having fixed pulleys, and loose pulleys of less diameter than said fixed pulleys, the carryingarms having the depending spindle-brackets and the horizontal belt-rests 4:2, projecting therefrom, the vertical matcher-head spindles journaled in hearings in the carryingarms and having the pulleys above the beltrests, and the belts connecting the pulleys on the line shafts with the pulleys on the matcher-head spindles, thelower edges of said belts traveling on the belt-rests, substantially as described.

4. The carrying-arms having the depending brackets, bearings in said brackets and in the front ends of the arms for the vertical match erhead spindles, and the horizontal belt-rests 42, projected from the said depending brackets, for the purpose set forth, substantially as described.

5. The combination, with the driving-chain of the feed-rollers, the forward set of feedrollers, and the upper and lower rear feedrollers, of an idler, as (JO, mounted on a bearing and carrying the chains free from the neck of the lower rear feed-roller, substantia-lly as described.

from the neck of one of the said lower feedrollers, substantially as specified.

7. The combination, in a planing-machine, of the vertically-adjustable brackets having the planer-head mounted thereon, and a feedroller journaled in arms on said brackets and consisting of two concentric parts of equal length, one part being free to revolve a limited distance on its bearing independent of the other, substantially as described.

8. The combination, in a planing-machine, of vertically-adjustable brackets having the planer-head mounted thereon, and a feedroller journaled in arms formed on said brack; ets, consisting of a solid section of substantially one-half the length of the roller and having a shaft centrallyprojected from one end thereof, and a shell mounted to revolve on said projected shaft and formed with a sleeve constituting the journal end bearing of the shell, substantially as described.

9. The combination, in a planing-machine, of vertically-adjustable brackets having the planer-head mounted thereon, and a feedroller consisting of a solid central part journaled in arms formed on said brackets, and a shell mounted concentrically on the solid central part and arranged thereon to have a limited independent revolution, substantially as described, and for the purpose specified.

10. The combination, in aplaning-machine, of vertically-adj ustable brackets carrying the planer-head, and a feed-roller consisting of a central shaft formed with journal ends mounted in said brackets and formed with stops 67, and a shell mounted on the said shaft and formed with limited annular slots 66, to engage the stops on the shaft, substantially as described, and for the purpose specified.

11. The combination, with a yielding driving-chain, of a feed-roller consisting of a solid central part and an outer shell mounted thereon and slotted to engage holding-pins on the solid central part, substantially as described.

12. In a planing-machine, the combination, with the driving means, substantially as described, of a feed-roller consisting of a central shaft and two shells of equal length mounted on the central shaft, each of said shells being slotted to engage stops fixed on the central shaft, substantially as described, and for the purpose specified.

13. The combination, with the feed-roller and the planer-head of a planing-machine, of a presser-bar consisting of sections 81 82,having sockets in their inner and approaching ends, and vertical screw-threaded end bars, and a connecting-bar arranged in the sockets of the sections, whereby they are supported at the middle, substantially as described. g l

14. The combination, in a planing-machine having the curved ways 84 in its inner'side faces, of the presser-bar frame at the rear of the upper planer-head, a presser-bar having a curved face adjacent to the planer-head and consisting of two parts detachably united at their inner ends and formed with curved end flanges to fit the curved ways on the planer-frame, and threaded bolts to hold the presser-bar in place,- whereby the pressure of the bar is thrown close to the planer-bits, sub-' stantially as described.

15. The combination, in a planing-machine,

of the front presser-bar 87, formed with inclined tongues92 on its ends, and the horizon-,

tal sliding brackets 90, formed with tongues 89 to slide in horizontal grooves in their support, and inclined grooves 91, to receive the tongues 92, whereby the presser-bar is both longitudinally and vertically adjustable, substantially as described.

16. The combination, with a planing-machine, of the chip-break and board-guide consisting of a metal bar adj ustably arranged on the planer-bed and means for automatically imparting longitudinal and sidewise movements to the bar, substantially as described,-

and for the purpose specified.

, 17. The combination, with a planing-machine, of the chip-break and board-guide consisting of a bar having a threaded end and provided with slanting slots, a spring 'anch ored on the bar to throw it longitudinally, and

studs arranged to engage the slanting slots in said bar to throw the bar laterally, substantially as described. r

18. The combination, with the bed of a Q planing-machine, of a chip-break and board.-

and consisting of a metal bar having a head guide arranged on the .bed of-thernachine to set adjacent to the matcher-head of the machine, slanting slots to engage studs in the bed-plate and carrying-arm of the machine,

and a-spring on the bar to press it forwardend 110, and slanting slots 105 107, the hous-V ing 100, securedto-the carrying-arm of the machine, the studs106 109, arranged as specified, the spring 103, and the adj ustin g-nut 104, all substantially as described.

20. In a surface-planer of the kind herein described, the combination, with the drivingpulleys at the front of the machine, the upper and lower planer-heads provided with belt-pulleys on their ends, and the drivingbelts arranged thereon, of idler-pulleys 114, mounted on fixed shafts projected from the side of the machine-frame at the rear, said idlers 114 having the driving-belts arranged about them and being of such diameter as to carry the belt above and below the lower planer head pulleys, substantially as described, and' for the purpose specified;

21. The combination, with the line-shaft of the machine, of the belt-housing idler-pulley 116, arranged adjacent to the driving-pulley 116", and formed with a wide circumferential flange 117 and a belt-supporting stud 118, whereby the belt of the machine may be rolled up and packed in the space within the flange, substantially as described.

22; The combination, with the line-shaft of the machine, of the belt-housing idler 116, arranged adjacent to the driving-pulley 116 and formed with a wide circumferential flange 117 and a belt-supporting stud 11S, and'a cover 120 to close the side face of the idler, substantially as described, and for the purpose specified.

23. The combination, with the carrying-arm of the matcher-head and the belt driving the spindle of the matcher-head, of a belt-shifting bar having its upper end fixed to the side of the carrying-arm, with the bar extending downward to engage the said belt, substantially as described, and for the purpose specified.

In witness whereof I have hereunto set my W. H. BECK,- JOHN A. BECK.