US988071A - Barrel-sanding machine. - Google Patents

Description

E. P. BEU'GLER.`

BARREL SANDIN G MAGHINE.

APPLICATION FILED MAY 22, 190e.

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By WM/mamy- 1w: mmms PETERS co wasxmcrcn. D. c.

E. P. BEUGLER.

BARREL S'ANDING MACHINE.

APPLIUATION FILED MAY 22, 190s.

Patented Mar. 28, v1911.

8 ABIIIIETS-SHI'IHT, 2.

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E. F. BBUGLBR. BARREL SANDIN G MACHINE. APPLICATION FILED Mm 2z., 190s.

Patented Mar. 28, 1911.

8 SHEETS-SHEET 3.

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E. F. BEUGLER. BARREL SANDING MACHINE. APPLIoATIoN FILED MAY 22, 190s.

Patented Mar.28,1911.

8 SHEETS-B'EEET 4.

cl/wm Inventor.

Witnesses Ow Q? 1HE NoRRIs PETERS co., WASHINGTON. n. c4

E. F. BEUGLER. BARREL SANDING MACHINE APPLIoATIoN FILED MAY 22, 190s.

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E. I. BEUGLER. BARREL SANDING MACHINE. APPLICATION FILED MAY 22, 1908.

Patented Ma1'.28, 1911.

8 SHEETS-SHEET 6.

ve'ntor.

TH: NoRRIs PETER: co.. wAsHmm'uN, n. c.

B. F. BEUGLER. 'BARREL SANDING' MAGHIN'El APPLICATION FILED MAY z2, 190s.

Patented Mar.28, 1911.

s SHEETS-SHEET 7.

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B.F,BEUGLER. BARREL SANDING MACHINE.

APPLICATION FILED MAY 22, 1908.

Patented Marl28, 1911.

8 SHEETS-SHEET 8.

1HE Nanms PETERS co.. wAsmNcroN, n. c.

UNTTFD 8TATE8 PATENT FFTQE.

EDWIN F. BEUGLER, OF BUFFALO, NEW YORK, ASSGNOR TO EDWARD B. HOLMES, OF BUFFALO, NEW YORK.

BARREL-SANDING MACHINE.

lib all whom it may concern:

Be it known that I, EDWIN F. BEUGLER, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented a certain new and useful Improvement in Barrel-Sanding Machines, of which the following is a specification.

This invention relates to an improved barrel sanding machine and the principal object of the invention is to produce a smooth and uniform finish on the surface of the barrel.

rThe invention also relates to certain details of construction all of which will be fully and clearly hereinafter described and claimed reference being had to the accompanying drawings, in which,-

Figure 1 is a front elevation of the improved barrel sanding machine. Fig. 2 is a side elevation of the improved machine. Fig. 3 is a plan view of the machine. Fig. 4 is an enlarged side elevation of the lower portion of the machine, showing the mechanism in its normal inoperative position in full lines, and in operative position in dotted lines, the barrel being shown in engagement with the sanding belt. Fig. 5 is an enlarged detached front elevation of the bari-el supporting and rotating mechanism, the mecha nism being shown in its normal position in full lines and closed upon a barrel in dotted lines. Fig. 6 is an enlarged detached plan view of the track, the carriage, and the mechanism for automatically moving the carriage back and forth, the carriage being shown in a central position in full lines and at the end of its movement in one direction in dotted lines. Fig. 7 is an enlarged transverse section through the roller and the track on line a a, Fig. 6. Fig. 8 is a central vertical section on line b l), Fig. 6, the screw bar being shown in full. Fig. 9 is an enlarged transverse section on line c c, Fig. 8. Figs. 10 and 1l are enlarged detached side and plan views of the latch of the automatic reversing mechanism for reversing the movement of the carriage. Fig. 12 is an enlarged side elevation of the upper portion of the standard showing the upper sanding belt pulley and the means for tensioning the belt. Fig. 13 is an enlarged detached side view of the crane and the sheaves carried thereby, the tensioning sheave being shown in one position in full lines and in another posi- Specicaton of Letters Patent.

Application led May 22, 1908.

Patented Mar. 28, 1911.

Serial N o. 434,226.

tion in dotted lines. Figs. 14 and 15 are enlarged detached front and side views of the nut on the oblique screw bar for tensioning the sanding belt. Figs. 16 and 17 are enlarged detached plan and side views of the forked block on the weighted lever which straddles the nut on theoblique screw bar. Fig. 18 is an enlarged central vertical section on line d (l, Fig. 4 through the bearing of the main shaft and the pulleys mounted thereon, showing a fragmentary front elevation of the standard. Fig. 19 is an enlarged fragmentary section on line e e, Fig. 6. 1g. 20 is an enlarged transverse section on line f f, Fig. 6. Figs. 21 and 22 are enlarged detached plan and side views of the barrel rests.

The mac/imc )emma-The frame of the machine consists of a skeleton base, and an upright frame member or standard. The skeleton base is formed substantially as shown in Fig. 6 having longitudinal front and rear members 1 and 2 and parallel transverse connecting side members 3 and 4. lThe front member 1 extends beyond the transverse connecting member 4 and forms a support for bearings to be hereinafter described. The transverse connecting member 3 extends beyond the longitudinal front member 1 and has a short vertical pin seated in its forward end, see Fig. 4.

The mola-This skeleton base is provided with a track upon which the carriage carrying the barrel supporting and rotating mechanism travels. This track is slightly elevated above the base and is in the formv of a curved rail 6 which is preferably cast integral therewith. By referring to Fig. 6- it will be seen that the curve of the rail 6 is the arc of a circle the center of which is the vertical pin 5 at the forward end of the base member 3. The track extends to one side of the skeleton frame as shown in Figs. 1, 3 and 6 the projecting portion of the rail 6 being carried by a curved base portion 7.

T he upright frame member or standard 8 has a large foot piece 9 the greater portion of which lies in front of the standard, see Fig. 4. The skeleton base is secured to this foot piece 9 by bolts 10, in the manner shown in Figs. 2, 3 and 4.

The carriage- The carriage which carries the barrel supporting and rot-ating mecha nism is T shaped, being composed of two members, a transverse main member 11 and by a connecting rod a comparatively short curved memberI 12 formed integrally at the rear extremity of the main member 11. Boxes 13 are formed at the extremities of the short curved member 12 in each of which is housed a wheel or roller 14- which rides the rail G. These rollers 14 are supported by short horizontal shafts journaled in bearings 15 formed integral with the short curved member 12 of the carriage, see Figs. 6 and 7. rlhe trans-A verse main member 11 of the carriage is provided with a vertical opening at its forward end through which the vertical pin 5 passes.

As will be seen by referring to Fig. 6 the carriage travels to and fro in a curved path with the vertical pin 5 as a pivot and the rollers let riding the rail G. The carriage vis given this to and fro movement by means of a revolving screw, the rotation of which is automatically reversed when the carriage has reached the limit of its travel in one direction, and is automatically stopped when the carriage has reached the limit of its travel in the other direction. This mechanism is illustrated in Figs. 1, 3, G, 8, 9, 10, and 11 to which reference will be had in the following description.

lThe revolving screw 16 is horizontally supported in vertical bearings 17, which are preferably cast integral with the front longitudinal frame member 1. The outer end of this revolving screw 16 projects beyond the outer bearing 17 and carries a tight pulley 18 and two loose pulleys 19 and 20, one of which is located on each side of the tight pulley 1S. The faces of the loose pulleys 19 and 2O are practically twice the width of that of the tightpulley as will be seen by referring to F igs. G and 8. A collar 21 fastened to the outer extremity ofthe revolving screw 1G maintains the outer loose pulley 2O in position thereon.

An interiorly screw threaded sleeve is mounted upon t-he revolving screw 1G between the bearings 1T and constitutes a traveling nut which is connected to the carriage @ne end of this connecting rod 23 has an opening through which a. vertical pin 211 preferably formed integral with t-he nut 22 passes to pivot the rod thereto, and the other end of the rod 23, is bent at. an angle and provided with a series of openings 25, which register with a similar series of openings in a raised portion 2G on the transverse main member 11 of the carriage. A removable pivot pin 27 is passed through one of the openings 25 in the bent end of the connecting rod 2? and inserted into the corresponding opening in t-he raised portion 2G, to pivot the connecting rod to the carriage, see Figs. 1 and G.'

rlhe revolving screw 16 is rotated alternately in opposite directions by two belts 28 and 29 which lead from the two loose puleeepvi leys l) and 2O back to a driving pulley 3() mounted upon the outer end of a main driving shaft 31. This driving pulley 30 is of comparatively small diameter and has a wide face to permit of the longitudinal shifting of the two belts 28 and 2t) thereon. lt will be seen by referring to Figs. Q, 3 and 6 that the belt 2S is a straight belt and the belt a crossed belt, so that by alternately shifting these from the loose pulleys 19 and 20 to the tight pulley 18 on the re volving screw 1G said tight pulley will be alternately rotated in opposite directions. The belts are shifted sin'niltaneously, the

faces of the loose pulleys 19 and Q0 being of sufficient width as heretofore described, to permit the necessary side movement of the belts thereon as one or the other is shifted to the tight pulley. Normally, both belts run on the loose pulleys 19 and 20 but when it is desired to revolve the screw 1G, so as to operate the carriage, the crossed belt is shifted from the loose pulley Q0 to the tight pulley 18, and causes the scre to revolve and move the traveling nut 22 in a direction toward the pulleys. lllhen the carriage has reached the limit of its move ment in that direction, the movement of the belt shifting device is automatically reversed and the straight belt 28 shifted to the tight pulley which causes the screw to revolve in the reverse direction.

rilhe belt shifting device consists of a longitudinal rod 32 upon the outer end of which is mounted a J -shaped belt shifter 33. Fach of the arms of the belt shifter 33 has a loop at its extremity through whichv one of the belts 28 and 29 passes, Figs. 2 and G. T he opposite end of the shifting rod 32 is connected by a link 3st to an obliquely extending hand lever 35 which is pivoted by a belt at its rear end to the curved base portion 7, see Fig. 6.

rlthe traveling nut Q2 is prevented from revolving with the screw 1G by a depending finger 22a the lower extremity of which travels in a longitudinal groove in the longitudinal front base member 1, formed by two longitudinal ribs Q2" on the top surface thereof, see Figs. 8 and l/zc barrel supporting cmd rotating mec/zuweisen-The barrel is supported and rotated by mechanism which is mounted upon the carriage and is so constructed that the barrel may be continuously rotated while it is swung bach into contact with the sanding belt and then carried in a longitudinal direction across the belt. This mechanism is illustrated in Figs. 1, Q, 3, land A. vertically extending yoke 36, straddles the transverse main member 11, of the carriage near its rear end and has the lower extremities of its arms pivotally mounted upon a short shaft 37 journaled in bearings 3S, beneath the main member 11, sce Fig. 5.

The upper end of the yoke 3G is enlarged and supports a horizontal plate 89 which is secured in place by bolts 40. This plate 39 has two pairs of vertical lugs 41 and 42 which support two comparatively long longitudinally extending parallel supporting bars 43 and 44. These bars which are rigidly secured in place by set screws are carried at about their middle so that they extend for substantially equal distances to each side of the plate 39, see Fig. 5.

Two vertical triangular brackets 45 and 4b are slidably mounted upon the parallel bars 43 and 44 on opposite sides of the plate 39 and are provided at their apices with bearings 4T and 48 in which two short longitudinal shafts 49 and 50 are rotatably supported. The triangular brackets are substantially duplicates of each other so that the short shafts 49 and 50 are in horizontal alinement, see Fig. 5. Each of the shafts carries a barrel chuck 51 at its inner end, which is secured to the shaft in any well known way so as to rotate therewith. A collar on the outer end of the short shaft 49 prevents any longitudinal movement of the shaft in its bearing see Fig. 5. rlhe other shaft carries a spur gear 53 at its outer end, which meshes with a pinion 54 formed integral with a rope sheave 55 loosely mounted on a short longitudinal shaft 56. This shaft is carried by a lug 5T on the triangular bracket 46, which is located vertically beneath the bearing 48, so that the shaft is arranged below and parallel with the shaft 50. rfhe shaft 5G is securely fastened in the lug 5? by set screw and has a collar 58 secured to its outer end to maintain the pinion and sheave in place thereon, see Fig. 5.

rfhe triangular brackets 45 and 46 are moved toward and from each other to grip and release the barrel by means of a hand lever 59 which has its lower end GO bent at substantially a right angle thereto and ournaled in a bearing in a lateral lug G1 on the horizontal plate 89. The horizontal lower end (30 of the hand lever is provided with two oppositely extending cranks 62 and G3, which are connected by curved connecting rods G4 and 65, to the triangular brackets. The outer ends of these connecting rods are pivoted by removable pivot pins (3G between depending bifurcated lugs 67 on the triangular brackets, see Fig. 5. rlhe ends of the connecting rods G4 and 65 are provided with a series of openings through any of which the pivot pins G6 may be passed to provide for the adjustment of the brackets for different sizes of barrels. A collar 68 is secured to the rear projecting end of the horizontal portion GO of the hand lever and prevents the displacement of said hand lever from its bearing G1, see Fig. 4.

The horizontal plate 89 has two lateral lugs 69 formed on opposite sides thereof and provided with vertical openings in which adjustable barrel rests 70 of ordinary design are supported and secured by set screws, see Figs. 21 and 22.

The barrel supporting and rotating mechanism is swung back into contact with the sanding belt by means of an obliquely eX-V tending hand lever 'T1 having its rear end seated in a lug on a hub 72 which is mounted on a short shaft 73. This shaft is journaled in vertical bearings 74 formed integral with the transverse main member 11 of the carriage and located in front of the yoke 36, see Fig. 4. This hub 72, carries a crank 75 to the extremity of which one end of a connecting rod 7G is pivoted by a crank pin TT. rEhe other end of the connecting rod 7G is fastened by a set screw to a collar 78, loosely mounted on the front longitudinally extending supporting bar 48. rlhis crank T5 and connecting rod 76 form a toggle connection between the bar 43 and the short shaft 73.

The barrel and its supporting and rotating mechanism is swung into operative contact with the sanding belt by shifting the hand lever 71, from the oblique position shown in full lines to the vertical position shown in dotted lines in Fig. 4. This movement rocks the hub 72 and partially rotates the crank "T5, thereby swinging the barrel and its supporting and rotating mechanism backward on the short shaft 37 as a pivot until the shaft 73, crank pin 77 and longitudinal supporting bar 43 are in a straight line as shown in dotted lines in Fig. 4.

When the mechanism is in this position, the barrel is maintained in contact with the sanding belt until the operator pulls downward on the hand lever 71 and breaks the toggle connection, thereby permitting the mechanism to regain its normal position.

The barrel rotating mechanism is driven by a compensating rope drive which is constructed so as to permit the swinging movement of the barrel toward and from the sanding belt and also the longitudinal travel of the barrel across the sanding belt so tha the entire surface of the barrel is operated upon by the belt. This compensating rope drive is illustrated in Figs. 1, 2, 8, 4 and 18. The main driving shaft 31 heretofore mentioned, is journaled in a long bearing 79 which is adjustably secured to the front side of the vertical standard 8 by bolts 80. The bearing may be adjusted by means of vertical set screws 81, which screw into the bearing and back up against lateral lugs 82, see Fig. 18. The main driving shaft 31 is rotated by means of a belt running over a pulley 83 secured to the shaft by a set screw. This pulley 88 has a hollow hub 84 which extends beyond the pulley on one side and carries a rop-e sheave on its extremity.

gj, seam/'i rthis sheave 35 is preferably screwed upon the hub in the manner shown in Fig. 3.

A loose pulley 30 is mounted upon the driving shaft between the pulleys 30 and 33 and serves to carry the driving belt when the machine is not in operation.

The driving' rope 87 is preferably an endless wire cable and leads from the driving shcave 35 over a number of intermediate sheaves to the sheave on the shaft 50.

ik triangular' swinging crane 33 is pivotally supported between lateral lugs 39 on one side of the vertical standard near the top thereof, and has its outer end terminating in a forked bearing 90. This forked bearing supports a short horizontal shaft 01 which carries a rope sheave 92. A bell crank is pivotally supported upon a horizontal pin 03 projecting laterally from the upper horizontal frame piece of the crane and the longer or horizontal arm 01 of this bell crank terminates at its outer eX- treniity in a forked bearing 05 similar to the bearing 90. This bearing 95 supports a short horizontal shaft 96 which carries a rope sheave 97.

The shorter arm 93 of the bell crank eX- tends obliquely downward toward the rear and carries an eye-bolt 99 at its eXtrei-nity. A heavy extension spring 100 has its rear end hooked into the eye bolt 09 and its front end secured by an eye bolt 101 to a vertical lug` 102 near the outer extremity of the crane.

The bell crank serves to keep the driving rope 37 taut at all times, the sheave 07 being drawn downward against the strong tension of the spring 100, as shown in dotted lines .in Fig. 13 when the barrel supporting and rotating mechanism is swung back to bring the barrel into operation contact with the sand belt.

Between the sheaves 35 and 92, the rope 37 passes over an idle sheave 103 supported upon a lateral pin 10s project-ing' from the side of the vertical standard 3. The purpose of this idle sheave is to draw the driving rope slightly to one side so as to prevent rubbing where it crosses after encircling the sheave 35. The operation of this compensating rope drive will be easily understood from the foregoing description and reference to Figs. 1 and 2 of the drawing.

T/c sanding meczcmfz'sm.-The sanding mechanism consists of a belt the outer surface of which is coated with a covering of an abrasive material, such as sand or the like, and a suction device for removing the dust. This mechanism is illustrated in ifigs. 1, 2, 3, and 12.

The sanding belt 105 is carried by upper and lower pulleys 100 and 107 of equal diameter. The lower pulley 107 is rigidly secured to the inner extremity of the main driving shaft 31 and the upper pulley 100 is mounted upon one end of a short horizontal shaft 108 journaled in a bearing 109 which forms part of a pivotal yoke 110. This pivotal yoke is substantially rectangular in shape and straddles the upper end of the vertical standard 8 see Figs. 2 and 3. It is pivotally supported on a short horizontal shaft 111 which is j ournaled in a bearing 112 on the rear side of the vertical standard. This pivotal yoke permits a slight vertical movement of the upper pulley 100, sufficient to permit the sanding belt 105 to conform slightly to the curve of the barrel when it is in contact therewith and thus not only maintains an even tension upon the sanding belt but also permits it to operate upon a greater portion of the barrel surface, see dotted lines in Fig. L1.

The sanding belt is maintained in a taut condition by means of a weighted lever 113 which is pivoted by a bolt 114 to one side of the vertical standard 3. The longer arm of the lever 113 extends rearwardly from the standard and carries a weight 115 which is adjustable thereon. The shorter arm of the lever 113 has a forked block 116 secured to its extremity by a set screw, and said block 116 straddles and supports a nut 117 on an oblique screw bar 11S. This nut 117 has opposed lateral. lugs 119 which seat in V-shaped depressions in the top surface of the forked block, see Fig. 12. The oblique screw bar 113 has a forked block 120 at its upper end which straddles the bearing 109 on the yoke 110, see Figs. 1 and 12. A hand wheel 121 is secured to the oblique screw bar in any convenient place to afford a convenient means for rotating the screw bar, and a hand screw 122 is screwed into the nut 117 to lock it in `its adjusted position.

The sanding belt is partially inclosed within a casing 123 which incloses the lower half of the lower pulley 107 and then eX- tends vertically upward as shown at 124, Figs. 2 and 3 and partially incloses the rear side of the belt. A pipe 125 leads from near the upper portion of the casing 124 and con nects with a small blower or suction fan 126 which sucks the dust from the belt and from within the casing. This fan is operated by a belt 127 which runs over a pulley on the fan shaft 128 and over a pulley 129 formed integral with the rope sheave 35 on the main shaft 31, see Fig. 2. A pipe may be connected to the exhaust 130 of the fan to convey the dust to any desired place.

As heretofore mentioned the movement of the carriage is automatically reversed when it reaches the limit of its movement in one direction. This mechanism is illustrated in Fig. 0. A bracket 131, is secured by bolts 1.32 to the rear side of the outer bearing 17 on the frame member 1 and said bracket carries a roller 133 on a vertical pin at its rear end. A horizontal arm 13-1 is also pivoted upon the top surface of the bracket 131 by a pin 135 and carries a similar roller 136. These rollers 133 and 136 engage in recesses in opposite sides of a block 137 which is secured to the longitudinal shifting rod 32 near its outer end. A horizontal rod 138 carried by a lug 138g on the arm 134 passes through a vertical lug 139 on the bracket 131 and is encircled by a spring 140, the tendency of Which is to force the arm 134 toward the shifting rod 32 and grip the recessed block 137 between the tivo rollers 133 and 136 which seat in the recesses.

A coiled spring 141 encircles the shifting rod bet-Ween a loose Washer 142 and a set collar 143 and said shifting rod 32 passes loosely through a lug 144 on the carriage see Fig. 6. Another set collar 145 is secured to the shifting lever 32 on the other side of the lug 144.

The operation of the machine is as folloivs,The machine is started by shifting the driving belt from the loose pulley 86 on the main driving shaft 31 to the tight pulley 83. This starts the main shaft of the machine and causes the pulley 107 to rotate and operate the sanding belt 105 and also operates the tivo belts 28 and 29. The carriage is in the position shown in dotted lines in Fig. 6 and the barrel supporting and rotating mechanism in the position shown in full lines in Fig. 4. The operator places a barrel upon the barrel rests 70 and then shifts the lever 59 from the position shown in full lines to the position shown in dotted lines, Fig. This movement operates the cranks 62 and 63 and causes the barrel chucks 51 to advance through the connecting rods 64 and 65 and grip the barrel, at the same time lifting it from the barrel rests sulliciently to permit it to rotate. rIhe barrel rotates the instant it is gripped by the chucks as the live chuck is constantly rotating, being driven from the sheave 85 on the 'main shaft through the driving rope 87.

The operator then shifts the oblique hand lever T1 and swings the barrel and its supporting and rotating mechanism back in the .ianner heretofore described so that the barrel contacts with the sanding belt 105, see dotted lines in Fig. 4. The oblique hand lever is then moved to the left so as to shift the crossed belt 29 from the loose pulley 20 to the tight pulley 18. This causes the screw 16 to revolve and move the carriage to the right and thus carry the barrel transversely across the face of the sanding belt in a curved path. After the carriage has passed the center, the lug 144 comes into contact With the Washer 142 on the shifting rod 32 and compresses the spring 141. When the tension of this spring overcomes the tension of the coiled spring 140 on the rod 138, the shifting rod 32 is carried to the right, thereby shifting the crossed belt 29 from the pulley 18 to the loose pulley 20 and the straight belt 28 from the loose pulley 19 to the pulley 18 and reversing the movement of the screw. This causes a return movement of the carriage until the lug 144 contacts With the set collar 145 on the shifting rod 32 and returns the rod to its original position so that both belts 28 and 29 run on the loose pulleys 19 and 20, see Fig. 6. This brings the carriage to a stop. The barrel supporting mechanism is novv returned to its normal upright position and the barr-el removed. Another barrel is placed in position in the machine and the operation is repeated.

The object in causing the carriage to move in a curved path is to permit the sanding belt to easily follow the longitudinal curved contour of the barrel so as to operate With uniformity upon the entire surface thereof.

One of the principal advantages of this machine is the speed at which it can be operated and the uniform character of the -ivork done.

I claim as my invention- 1. In a machine of the class described, a frame having an upright member and a base, a curved track on the base, a T shaped carriage having its T end provided With rollers supported on the track and its opposite end pivoted to the base, barrel supporting and rotating mechanism carried by the carriage, and a smoothing belt supported from the upright member.

2. In a machine of the class described, a frame having an upright member and a base, a curved track on the base, a carriage movably mounted on the track, barrel supporting and rotating mechanism carried by the carriage, a smoothing belt supported from the upright member, means for reciprocating the carriage on the track and means for moving the barrel supporting mechanism toward the smoothing belt.

3. In a machine of the class described, a frame having an upright member and a base, a curved track on the base, a carriage movably mounted on the track, barrel supporting and rotating mechanism carried by the carriage, a smoothing belt supported from the upright member, automatic means for reciprocating the carriage on the track and manually operative means for moving the barrel supporting mechanism toward the smoothing belt.

4. In a machine of the class described, the combination With smoothing mechanism, of a barrel supporting mechanism, means for moving said mechanism toward the smoothing mechanism and independent means for reciprocating in a curved path the barrel supporting mechanism across the smoothing mechanism.

5. In a machine of the class described, the

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combination with smoothing mechanism, of a pivotally mounted barrel supporting mechanism, means for swinging said mechanism on its pivot toward the smoothing` mechanism and a rotatable screw 'for independently reciprocating the barrel supporting mechanism in a curved path across the smoothing mechanism.

6. in a machine ci the cla-ss described, the combination With smoothing mechanism, of pivotally mounted barrel supporting mechanism, means for rotating a barrel mounted in said supportingl mechanism including a compensatingl rope drive and means for swinging' said supporting mechanism on its pivot toward vthe smoothing mechanism.

7. In a machine of the class described, the combination With smoothing mechanism, of barrel supporting mechanism inciuding` a pivotal yoke, barrel gripping chucks and means for moving said chucks toward each other to grip a barrel, means for rotating a barrel mounted in said supporting` mechanism and means for moving said supporting,

mechanism toward the smoothing mechanism.

8. In a machine of the class described, the combination with smoothing mechanism, of barrel supporting mechanism, means for ro tatinp,` a barrel mounted in said supportingmechanism and toggle means for moving said supporting mechanism toward the smoothing mechanism.

9. In a machine of the class described, the combination With smoothing mechanism, of barrel supporting mechanism, means for rotatinga barrel mounted in said supporting mechanism and toggle means for moving said supporting; mechanism toward the smoothing' mechanism, the parts of the toggle beingl in alinement when the barrel supportiug1 mechanism is in close proximity to the smoothing mechanism.

EDTVVIN F. BEUGLER.

Vit-nesses L. M. SANGSTER, GEORGE A. NEUBAUnn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C.

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