US834970A - Planing-machine. - Google Patents

Description

PATENTED NOV. 6,-1906.

S. L. GROWE. PLANING MACHINE. urpmmxon FILED APR. 20.1906.

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[NVENTOR ATTORNEYS WITNESSES:

No. 834,970. PATENTED NOV. 6,1906. L. OROWE.

PLANIN'G MACHINE.

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PATENT-ED NOV. 6, 1906.

s. L. GROWB. rmnme MACHINE. APPLICATION FILED APR.20. 1906.

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I I ATTORNEYS V To (ZZZ whom, it may concern:

' UNITED STATES PATENT oFFIoE.

SAMUELL. cRow or SEYMOUR, INDIANA. AssIGNoRioF ONE-HALF TO LYNN FAULKCONER, or SEYMOUR, INDIANA.

PLANING-MACHINE.

Specification of Letters Patent I A licatio filed April 20, 1906. Serial No. 312,830.

Patented Nov. 6, 1906.

. Be it known that-I, SA/MUEL'L. CRowE, a citizen of the United States, residing at Seymour, in the county of Jackson and State of Indiana, have invented a new and useful Planing-Machine, 'of which the following is a specification.

This invention relates generally to woodplaning apparatus, and particularly to a machlne for sizing and shaping rived or split pieces of wood for bent-wood work.

In certain lines of bent-wood industries as now practiced the blanks are rived or split out of the log and reduced by a down by hand to the required size.

band-saw or other tool to approximately the These blanks are then shaped or worked This operation is expensive and in many cases unsatisfactory, owing to the difficult in securing uniformity of the product by andwork'.

The object of the present invention is to take the rived or split blanks after the latter have been shaped to the ap roximate dimensions and plane such blanks to the desired size and to provide mechanism for turning out a'finished blank of uniform thickness or which may be tapered, if desired.

A further object of the invention is to provide a planing-machine having a revoluble work-bed of such construction as to gradually decrease the space between the work-bed and the cutter-head, and thus produce a tapered blank. I

A further object of the invention is to provide improved work holding and guiding means which will support the work in proper position on both sides of the cutter.

With these and other objects in view, as

will more fully. hereinafter appear, the invention consists in certain novel features of constructlon and arrangement of parts, herelnafter fully described, illustrated in the accompanying drawings, and, particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size, and minor details of the structure may be made without departing from the spirit or sacrificing any 0 the advantag es of the invention.

In the accompanying drawings, Figure 1 is a side elevation .of a planing-machine constructed in accordance with the invention.

Fig. 2 is a transverse sectional view of the .Fig. 6 is a sectionalcorrect size.

same on the line 2 2 of Fig. 1. elevation looking from the side opposite that shown in Fig. 1.. Fig. 4 is a plan view of one of the upper feed-rollers and its driving connections. Fig. 5 is an elevation of the adjustable carrying-block for the work-bed.

lan view of the doveearin -block.

v Fig. 3 is an tailed uide for said Simi ar numerals of re erence are employed to indicate correspondingv arts throughout the several figures of the rawlhe workingparts of the machine are supported on a suitable frame 10, theu per portion of which has bearings 11 for t e reception of a transversely-disposed shaft 12, that carries at one end a cutter-head 13, which may carry cutters of a contour corresponding to the work to be performed. Near the center of the shaft is a flanged pulley l i, that is connected b a belt 15 to a large pulley 16, mounted in -fiearings at the lower portion of the rear end'of the frame, the shaft of such pulley carrying a driven pulley 17, that receives motion through a belt 18 from any suitable source of power.

At one side of the frame, and preferably forming a part thereof, is, a bar 19, having a vertically-disposed. dovetailed groove 20, in which is mounted a bearing-block 21, that may be vertically adjusted by a screw 22 and when adjusted may be locked in osition by set-screws 23. a support for a shaft 24, on which is mounted a revoluble work-bed 25, the latter having a cam-shaped periphery on which the work rests, and as the work-bed is rotated by the work. the space between the periphery of said work-bed and the cutter-head will be slowly decreased, so that the resultant blank will be tapered, and the angle between the opposite sides of the blank may be alteredbythe employment of work-beds of different contour,

the machine being of such nature that a work' bed of one size and contour may be detached and another of different size and contour laced on the carrying-shaft 24; The revouble work-bed is provided with a counterweight 27, so located that when free from contact with the Work the bed will turn by gravity until itv assumes an initial position, with the shoulder 28 of the cam-shaped periphery somewhat in advance of the cutter- This bearing-bloc serves as has -an=- approximately horizontal arm '36,

"from which is hung a counterweight 37.

At suitable points-in frontand rear of the -.-cutter-headare work-feeding rollers 40 and 2 41, respectively; the forward roller. 41 being mountedon ashaft. 42, that is held infixed bearings in the machine and; is provided at one end with asprocket+wheel 43, over which passes a link-belt 44, receiving motion as herein'after described.

*The' rear feeding-roller is carried by a shaft 46, that is mounted at the outer ends x'of a pair of arms '47 the latter being keyed or otherwise secured to a rock-shaft. 48, that is -journaled inrbearingblocks '49, carried by the frame, and said shaft'has a depending wrocker-arm50, that is connected by a link 51 to the. approximately vertical arm of abell- .cra'nk' lever .52 the horizontal arm of said leverreceiving a weight 53 which acts to force 'the arms 47 and the feed-roller '40 down into engagement with the. upper surface of the work. In order to rotate this feed-roller,

the endof the shaft 48 carries a sprocket- --wheel 54, that is mounted loosely on the shaft and is secured to a gear 55, also loose on .the shaft. The spur-gear 55- intermeshes with a spur-gear 56, mounted .ona countershaft 57 that is. also supported in the bear- Pings '49, and at the opposite end of the shaft 57 is. a'gear 58,- which intermeshes'through a train ofloose gears 59 with a gear-wheel 60, that is secured to the shaft 46 .of the feedroller 40.

3 In the lower portion of the frame are bearings for the reception of a transversely-dis- .posedshaft' 62,-having at one end a sprockets'aidbelt passing in a triangular course over wheel 63, over which the'link-belt 44 passes,

"the sprocket-wheels .43, 54, and '63. The shaft 62 carries a belt-wheel 65, that is connected by a belt 66 to a small pulley 67 on a counter-shaft 68 near the front of the frame,

. and the shaft 68 has a large belt-wheel 69, that is connected by a crossed'belt 70 to a small-pulley 71 on the main shaft of the machine.

Under normal conditions the belt 66 runs "loose anddoes not impart movement to the feed-rollerj but when the device is tobe operatedthe attendant-pulls forward a lever 73,

that is fulcrumed to a bracket 74 at the front of the maohine, and said brackethas' a forwardly-extending arm 75, carrying a belttightening roller 76, which is forced into engagement with the belt 66 and tightens the sameto an extent suflicient to enable the belt to transmit movement to the feeding devices.

Owing to the upward movement of the roller 34 and the downward movement of the roller 40, it is difficult to introduce work between: these two rollers, and in order to spread the rollers when work is to be passed between them a lever 80 is pivoted at the front of the machine and is connected by rods 81 and 82 to the lower carrier. The rear end .of the rod 81 is provided-with a slot 83, which engagesv a. inprojecting from the rocker-arm 50 of sha t 48, and the rear endof the rod 82.has. a slot 85, which engages the pin projecting from a rocker-arm 86, that is secured to the shaft 31, so that while the effect of the counterweight may be tem orarily removed and the rollers spread the s ots will permit free action of such rollers under ordinary conditions. The lever 80 is provided with a locking-pawl 90, which may engage a rack or quadrant 91 in order to hold the rolls temporarily opened when desired.

In operation the lever 80 is pulled back,

and thereby raising the roller 40 and lowering the roller 34 to. an extent sufficient-to allow the end of the blank to pass between them without coming into contact with such rollers.

' The blank is .then placed between the rollers '35 and 41 and, resting on the revolublebed '25, the upward pressure exerted by'the roller '35 will cause the blank to be pressed up against the roller 41 and. down on the revolublebed 2,5, which will be turned as the blank moves forward, and when the forward end of the blank .has advanced to a position between the rollers 34 and 40the lever 80 is released, allowing such rollers to engage with the blank,- whereupon. the blank will be drawn out through the machine, the cutterhead planing the blank to a shape .determined by the contour of the revoluble bed.

After the-blank has passed through the machine the bed-plate returns to its initial position under the influence of the counterweight 27.

I'claim 1. In a planing-machine, the combination with a'frame, of a revoluble cutter-head, and arevolubly-mounted non-circular work-bed receiving movement from the work, said work-bed being counterweighted andyfree to returnto an initial predetermined position by gravity after each operation.

2. In a planing-machine, the combination with. a frame, of a revoluble cutter-head, a revoluble work-bed having a cam-shaped periphery, the work-bed receiving movement from the work, and means for restoring the work-bed to an initial predetermined position after the passage of the work.

3. In a planing-machine, the combination with a frame, of a revoluble non-circular work-bed, a revolubleLcutter-head, a workfeeding roller,,mounted in fixed bearings in advance of the cutter head, a yieldablymounted work-supporting roller in advance of the work-bed, and yieldably-mounted work feeding and supporting rollers arranged beyond or'to the rear of the cutter-head and work-bed.

4. In a planing-machine, the combination with a frame, of a revoluble cutter-head, a revoluble non-circular work-bed, a work-supporting roller, a rocker-arm carrying said weighted rocker-arm on the shaft and acting to force the work-supporting roller upward against the work, and a work-feeding roller arranged in a vertical plane between the work-bed and the supporting-roller.

5. In a planing-machine, the combination with a frame, of a revoluble cutter-head, a revoluble work-support, a pair of yieldablymounted work-supporting rollers tending to elevate the work from the bed, and a pair of feeding-rollers engaging the upper surface of the work, one of said feeding-rollers being yieldably mounted. Y 6. Ina planing-machine, a frame, a revoluble cutter-head, a revoluble non-circular work-bed, a pair of yieldably-mounted worksupporting rollers arranged one in advance and the other in the rear of the work-bed, and l a pair of work-feeding rollers, the rollers being arranged in difierent vertical planes, respectively.

7. In a planing-machine, a frame, a revoluble cutter-head, a revoluble work-bed,'a pair of yieldably-Inounted rollers arranged to the rear of the work-bed, and adapted to engage the opposite faces of the Work, respectively, and means for holding said rollers in spaced relation for the introduction of the work.

8. In a planing-machine, the combination with a frame, of a revoluble cutter-head, a revoluble work-bed, a pair of yieldablymounted work-engaging rollers arranged to engage the opposite sides of the work, weighted arms connected to the roller-mountings and tending to force said rollers a ainst the work, and means for spreading saic? rollers to permit the entrance of the work between them.

9. In a planing-machine, a frame, a revoluble cutter-head, a revoluble work-bed, a worksupporting roller, and a work-feeding roller disposed in different vertical planes, respectively, rocking frames carrying said rollers, rocker-shafts carryin said frames, weighted arms connected to t e rock-shafts, an adjusting-lever, and rods extending therefrom and operatively connected to such rockshaft to permit spreading of the rollers.

In testimony that I claim the foregoing as my own I have hereto afiixed my signature in the presence of two witnesses.

SAMUEL L. OROWE.

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