US590665A

US590665A - Machine

Info

Publication number: US590665A
Authority: US
Publication date: 1897-09-28
Anticipated expiration: 1914-09-28

Description

(No Model.)

3 Sheets-Sheet 1. D. J. LATTIMORE. WOOD SANDING AND POLISHING MACHINE.

No. 590,665. Patented Sept. 28,1897.

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3 Sheets-Sheet 2 (No Model.)

D. J. 'LATTIMORE. WOOD SANDING AND POLISHING MACHINE.

No. 590,665. Patented Sap-13.28, 18-97.

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(No Model.) .3 Sheets-Sheet 3.

D. J. LATTIMORE. WOOD SANDING AND POLISHING MACHINE.

No. 590,665.. Patented Sept. 28, 1897.

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UNITED STATES DANIEL J. LATTIMORE, or sr. Louis, MISSOURI, ASSIGNOR or ONE-HALF I PATENT Orricn.

TO CLARENCE M. LATTIMORE, OF SAME PLACE.

WOOD SANDING AND POLISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 590,66 5, dated September 28, 1897.

Application filed October 26,1896. Serial in. 610,141. (1101110161.)

To 60% whom it may concern.-

Be it known that I, DANIEL J. LATTIMORE, a citizen of the United States, residing at St. Louis, in the tate of Missouri, have invented certain new and useful Improvements in WVood Sanding and Polishing Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention has relation to improvements in wood sanding and polishing machines; and it consists in the novel arrangement and combination of parts more fully set forth in the specification and pointed out in the claims.

In the drawings, Figure 1 is a side elevation of the machine. Fig. 2 is a top plan view thereof. Fig. 3 is a detail on the section-line 00 5c of Fig. 1. Fig. 4- is a sectional longitudinal detail of a cylinder for operating on beaded moldings. Fig. 5 is a longitudinal sectional detail of a cylinder made up of sections. Fig. 6 is a section on line 3 y of Fig. 7. Fig. 7 is a detail plan showing the manner of constructing the polishing-cylinder. Fig. 8 is a longitudinal sectional detail showing the manner of constructing the peripheral sections of the polishing-cylindenthe section being taken in a plane at right angles to that illustrating Fig. 6; and Fig. 9 is a detail elevation of the resin-cleaning device.

The object of my invention is to construct a combined wood sanding and polishing machine adapted to operate both on plane or beaded surfaces, such as moldings and the like, the present device being adapted to thoroughly sand and polish moldings and similar ornamental woodwork without in the least disturbing the sharpness of the edges of the members of such molding, the sanding bodies or cylinders employed for the purpose reaching any and every portion of the surface of such moldings, positively taking off or removing any and every unevenness or ridge generally left by the planer, especially where the latter has to contend with knots, eXcrescences, and unnatural local growths in the wood during the planing operation. The present machine is provided with sanding bodies or cylinders which constantly present a cutting or sanding surface to the material suring a positive uniformity in the character of its product.-

In detail the invention may be described as follows:

Referring to the drawings, 1 represents a frame at one end of which is mounted in suitable bearin gs a drive-shaft 2, having, respectively, tight and loose pulleys 3 and 4 at one 'of its outer projecting ends, the said pulleys being adapted to be driven from any suitable source of power. (Not shown.) Carried adja- I cent to the opposite end of the drive-shaft is a drive-pulley 5, from which passes a belt 5 to the terminal pulley 6 of a sanding-cylinder 7, adjustable to and from the bed-plate of the machine-frame. The manner of effecting the adjustmentis as follows: The shaft of said sanding-cylinder is mounted in bearings each provided with dovetailed grooves adapted to loosely receive the corresponding dovetailed tongues 8, forming part of one of the members'of the vertically-disposed angle-bars 9, depending from the frame of the machine.

The lower portion of the bearing is provided with a screw 10, held adj ustably in any predetermined position by the nut 11, passed over the same and driven firmly against the bearing, the lower end of said screw being pivotally connected to one end of a link 1] whose opposite end is pivotally secured by a pin 12 to the lateral surface of a worm-gear 13, carried at opposite ends of a transverselydisposed shaft 14, the worm-gear on one side of the machine cooperating with a worm-pinion 15, carried at the lower end of an "operating rod or shaft 16, mounted in suitable bearings on one side of the frame. The wormgear on the opposite side of the machine can of course take the form of a simple disk. The upper end of said shaft or operating-rod is provided with a hand-wheel 17, within easy reach of the operator. Upon the turning of the hand-wheel in proper direction the wormgear 13 will be turned, thereby forcing the link 11 in proper direction and thus properly adjusting the bearin gs in which the sandingcylinder is mounted, the said bearings sliding along the dovetailed tongues forming part of the angle-bars 9.

As will presently appear, the present device is provided with two sanding-cylinders, each capable of adjustment in the manner indicated. superposed above the sanding-cylinder (whose periphery, by the way, projects through an opening of the bed-plate and above the plane of the latter a distance depending on the depth of the wood surface to be sanded) is a presser-roller l8, adjustable in a well-known manner by mounting the shaft thereof in blocks 19, adapted to embrace and slide along the guide-tongues 20, forming a part of the standards 21 between which the said roller is mounted, the said bearing-blocks being adjusted by the screws 22, turned in proper direction by the hand-wheels Secured to the end of the drive-shaft 2, adjacent to the drive-pulley 5, is a small pulley 21L, from which passes a belt 25 over a larger pulley26, carried on the same side of the machine at one end of the rear bottom shaft 27, the latter having secured at its end, adjacent to the pulley 26, a sprocket-wheel 28, from which passes a sprocket-chain 29 over a larger sprocket-wheel 30, carried at the end of the shaft 31 of the feed-roller 32, the latterbeing adjustably mounted in a manner similar to the presser-roller l8.

Carried by the shaft 31 of the feed-roller, between the frame an d the sprocket-wheel 30, is a smaller sprocket-wheel 33, from which passes rearwardly a chain 34:, over a similar sprocket-wheel 35, carried at the adjacent outer end of the rear feed-roller 36, the shaft 37 of which is mounted adjust-ably in the identical manner described in connection with the

rollers

18 and 32.

Loosely mounted at one end of an intermediate shaft 38, located substantially on a line with the shafts 2 and 27, is a pulley 39, over which passes a cross-belt 40, the outer surface of that lap of the latter which passes over the pulley 39 frictionally contacting with the lower lap of the belt 5, wherebyproper rotation is communicated to the pulley 39, the motion of the latter being communicated through the belt 4-0 to the rear sanding-cylinder 7 over the terminal pulley 41 of which the belt 40 passes.

Cooperating with the sanding-cylinder 7 is a presser-roller 42, mounted adjustably in a manner indicated in connection with the

rollers

36 and 32 and roller 18. The sandingcylinder 7' is adjustable in precisely the same manner as is the roller 7.

Carried by the shaft 27 of the pulley 2G and at the end opposite that to which the sprocket-wheel 28 is secured is a small pulley 43, from which passes upwardlya belt 44 over the terminal pulley $5 of the shaft of the polishing-rollertfi, the latterbeingbuilt up, preferably, of a series of leather strips, by which the polishing or smoothing of the wood is effected upon the completion of the sanding operation.

It may be remarked in passing that the grain of the sandstone cylinder 7 is finer than that of the cylinder 7, thereby subjecting the wood first to the action of a coarsegrained sandstone, then to a finer-grained sandstone, and, finally, to the polishingperiphery of the leather or equivalent cylinder.

As a substitute for the sandstone cylinders corundum cylinders maybe employed.

The preferred manner of constructing the polishing-roller is best illustrated in Figs. (3, 7, and S. A strip of wood or metal 47, having a terminal-deflected end as, is first taken, 011 which is laid the broad side of a strip of leather 4%) of sufficient width to project peripherally beyond the wood or metal strip, then a second strip 50, of metal, wood, or equivalent material,.with its end abutting against the inner surface of the overlapping deflected end 48. A screw 51 secures the parts in place, thus forming one section of the peripheral surface of such polishing-roller. A number of such sections combined are then disposed with their opposite ends laid along the innersurface of an annular metallic band 52,'when there is inserted at each end into the circular opening thus formed between the inner edges of the series of sections thus assembled the circular inwa-rdly-projecting ledge 53, forming an integral part of the terminal circular plate or disk 51L. The shaft 55 of the polishing-roller is then passed through the central openings of the said terminal or clamping plates 5%, the parts being made secure by the nuts 56, passed over the shaft. The opposite ends of the sections of the polishing-surface of the roller are thus included between the band 52 on the one side and the adjacent surface of the circular ledge 53 of the clamping-plate on the other hand.

To keep the peripheral surfaces of the sanding-cylinders free from sawdust, dirt, &c., I provide a suitable brush 57, mounted between the ends of the terminal arms of a yoke 58, mounted in suitable slots or receptacles 59, formed in the frame of the machine, the position of the yoke being adapted to be adjusted relatively to the sanding-cylinder in proportion to the degree that the brushes 57 wear away, suitable retaining-bolts 00 being adapted to bear against the arms of said yoke and hold the latter in position after being once adjusted.

hen a beaded molding is sanded and polished, a sanding-cylinder of corresponding peripheral contour, conforming to the 0011- tour of the molding, is employed, as seen in Fig. 4. Where it is inconvenient to secure a single piece of sandstone from which to construct the cylinder, a series of disks 61 can be mounted side by side along a suitable shaft, as best seen in Fig. 5, the disks being secured together in any mechanical manner.

To remove accumulations of resin or the likefrom the peripheral surfaces of sandingcylinders operating on plane surfaces' and for truing such periphery, I employ adevice such as illustrated in detail in Fig. 9, the said device, however, being old and no claim being made thereto in the present application. Carried by the shaft 38 is a small terminal pulley 62, from which passes a belt 63 to a cor responding terminal pulley 64, carried by one end of a reverse screw-shaft 65, projecting from the side of the frame, there being located adjacent to the pulley 64 a second pulley 66, from which passes a belt 67 over a pulley 68 at the corresponding end of a second reverse screw-shaft (39. Over each reverse screw-shaft 65 or 69 is adapted to be reciprocated an arm or carriage 70, the said arm having cut therein a dovetail groove adapted to embrace a correspondingly-dovetailed track or rail 71, located adjacent to and parallel with the shafts of the sanding-cylinders 7 and 7.' Each arm or carriage 70 is provided with a headed bolt 7 2, by which may be clamped in any position on the arm 70 a plate 73, through a slot (not shown) of which the'bolt passes, the adjustment of said plate to and from the periphery of the sanding-cylinder being effected by a lever-operated screw 7 41, passing through the downwardly-deflected arm of the plate 73 and bearing with its inner end against the edge of the adjacent end of the arm 70, adjacent to the juncture of said arm with its looped extension 70, by,

which the reverse screw-shaft is loosely embraced. The adjustable plate 7 3 is provided with a vertical wall 76, to the inner tapering end of which is pivotally secured a lug 77, projecting from the periphery of one end of an oscillating tube 78, the opposite end of said tube being guided and adjustably secured to any angle along the outer curved slot 79 of said wall by the headed screw 80, passed through said slot and projecting laterally through the slot from the outer projecting lug 82, carried by the periphery of the oscillating tube near the outer end thereof. Through the tube 78 passes the spindle 83 of a resin-cleaning rotating steel bevel-disk 84, the base of which, in its reciprocation with the carriage 70 along the rail, is adapted to clean the peripheral surface of the revolving sanding-cylinder of any accumulations of resinous matter and keep the said surface true.

As the peripheral surface of the sandingcylinder wears away it is apparent that by means of the screw 7 4 the resin-cleanin g roller or disk 84 can be adjusted toward the sanding-cylinder by a simple turn of the said screw 7 4 in proper direction. At the same time the angle of the tube in which the spindle of the resin-cleaning disk rotates can be properly determined. 7

Both sanding-cylinders are provided with resin-cleaning devices.

Having described my invention, what I claim is- 1. In a wood-sanding machine, a suitable frame, a series of mineral sanding-cylinders of progressively-increasing fineness of grain mounted on said frame, a polishing device adapted to operate on the wood at the termination of the sanding operation, means for actuating the sanding-cylinders and polishing device, a presser-roller located on the frame in position to cooperate with each sandingcylinder, feeding devices in connection with the sanding-cylinders and polishing device, means for adjusting the relative positions of the cylinders and presser-rollers in proportion as the sanding-surfaces of the cylinders wear away, and suitable devices for cleansing the peripheries of the cylinders of foreign accumulations, substantially as set forth.

2. In a Wood sanding and polishing machine, a suitable revolving sandstone sanding-cylinder, a brush for removing the dirt and sawdust particles from the periphery thereof, and means for removing the resinous accumulations from the surface of said cylinder, substantially as set forth. 1

3. In a wood sanding and polishing machine, a polishing-roller comprising a series of sections built up of alternate strips of metal and leather secured together, a band encirclingthe ends of the sections when assembled, a terminal clamping plate or disk having a circular offset or ledge adapted to be inserted into the circular opening formed between the edges of the assembled sections, a shaft passed through the clamping-plates, and a bindingnut carried at each end of the shaft and adapted to be firmly forced against the outer surfaces of the clam pin g-plates, substantially as set forth.

4. In a wood sanding and polishing machine, a suitable sanding-cylinder, a frame in which thesame is mounted, a slot or receptacle formed in the frame adjacent to the periphery of the cylinder, a yoke slidin'gly mounted in said receptacle, arms forming a part of said yoke, a brush mounted between the ends of said arms and adapted to press against the periphery of the cylinder, and bolts for securing the yoke in place after the latter has once been adjusted, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses;

DANIEL J'. LATTIMORE.

IVitnesses:

ALFRED A. MATHEY, EMIL STAREK.

IIO