US611587A

US611587A - bratt

Info

Publication number: US611587A
Authority: US
Publication date: 1898-09-27
Anticipated expiration: 1915-09-27

Description

N0. 6l l,587. Patented Sept. 27, 1898.

C. E. BRATT.

'STAVE JOINTING MACHINE.

(Application filed Feb. 1'7, 1897,)

4 Sheets-Sheet I.

(No Modal.)

No. 6ll,587. Patented Sept. 27, I898.

C. E. BRATT. STAVE JOINTING MACHINE.

(Application filed Feb. 17, 1897.) (No Model.)

4 Sheets-Shem 2.

m: NORRIS FETERs co. PNOTQ-UYHQv WASHINGTON. aim

N0. 6l|,587. Patented Sept. 27, I898.

C. E. BRATT. STAVE JOINTING MACHINE.

(Application filed Feb. 17, 1897.)

(No Model.)

Patented Sept. 27, I898. C. E. BRATT.

STAVE JOINTING MACHINE.

(Application filed. Feb. 17, 1897.)

4 Sheets-Sheet 4.

(No Model.)

z azw Z, ma;

m: norms wanna c0. nno'mu'rna. wnsnmmou, n. c.

- WNITED STATES ATENF rrrcn.

CHARLES ELIS BRATT, OF STOCKHOLM, SWEDEN, ASSIGNORTO THE BRATTS STAVE AND OASK SYNDICATE, LIMITED, OF LONDON, ENGLAND.

STAVE-J OINTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 611,587, dated September 27, 1898. Application filed February 17,1897. Serial No. 623,871. (No model.) Patented in England November 16, 1896, No. 25,780.

To ctZZ whom it may concern:

Be it known that I, CHARLES ELIs BRATT, a subject of the King of Sweden and Norway, residing at Stockholm, Sweden, have invented certain new and useful Improvements in Stave-Jointing Machines, (for which I have obtained Letters Patent in England, dated November 16, 1896, No. 25,7805) and I do hereby declare the following to be a full, clear, and exact description of the invention, such as Will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters and figures of reference marked thereon, which form a part of this specification.

My invention has relation to stave cutting and jointing machines, and more particularly to mechanism and combinations of mechanisms whereby a stave after having its edges smooth-jointed is then provided with a tongue along one edge and a groove along the opposite edge, so that when such staves are assembled in the manufacture of barrels the staves thereof will be united by a tongue-andgroove joint, the tongue and jointing appliances being so organized as to confine the tonguing and grooving to that part .of the stave edges between the stave-crozes.

In the accompanying drawings, Figure 1 is a vertical longitudinal section taken about on line 0 d of Fig. 3. Fig. 2 is a vertical transverse section taken about on line a b of Fig. 1, and Fig. 3 is a top plan view of so much of a stave cutting or dressing and j ointing machine as will be necessary to illustrate the particular features of my invention. Fig. 4 is a fragmentary horizontal sectional View taken about on line 6 f of Fig. 1. Fig. 5 is a fragmentary sectional view, drawn to an enlarged scale, of the crank connection between the cutter-spindles and their guiderolls. Fig. 5 is a top plan view of Fig. 5.. Figs. 6 and 7 are plan views of the templets or patterns, and Fig. 8 is a like View of a completed stave.

In the above drawings I have shown only the mechanism for smooth-jointing the opposite edges of the staves and the mechanism for tongue-and-groove jointing such staves; but in practice the machine will be organized to dress the opposite faces of the staves by the provision of suitable cutters and feeding appliances-for instance, as shown in my British patent No. 25,780 of 1896, hereinbefore referred to, and which I have deemed unnecessary to illustrate and describe, as I do not desire to claim such mechanism herein.

The operating mechanisms are mounted on a suitable frame F, of whichTis the worktable. Above the table T, on cross shafts or spindles f f are mounted pattern or templet wheels f f each of which has in the machine illustrated three similar patterns, those for the wheel f (shown in Fig. 6) being indicated by the symbols 9 g g and those for the wheel f (shown in Fig. 7) by the symbols h h 71. respectively. Each of the shafts f? f also carries a disk or wheel lettered t" and t respectively,and said wheels 'have as many studs or pins as there are patterns on their respective pattern-wheels. In the machine illustrated said disks have each three studs equidistant from one another and from the axis of the disk, said studs carrying each a roller. The studs on disks 2" are lettered h 7r; & and those on disk 2' are lettered 10 ,10 and b respectively. In order that the number of patterns on the wheels f f and the number of studs on disks 2" may be increased or decreased, suitable provisions are made for this purpose by providing a maximum number of slot-bearings in wheels f f for the patterns and a maximum number of holes for the studs or disks 1' and t so that the number of patterns and studs can be varied within the limits of such maximum number. i

The arrangement of the studs and rollers on the disks t and t" relatively to the patterns on wheels f and f is such that after each partial rotation'of the pattern-wheels equivalent to the length of the groove or tongue to be formed in a stave two of said studs will lie in the same horizontal plane at the time when one of the patterns is in position to guide the cutters to tongue and groove another stave. The pattern-wheels are positioned or set by means of weighted levers Z Z fulcrumed on studs adjustable vertically in slots on m of the framing, said levers having bearing on the" rollers of the aforesaid studs, the weights? Z rob being adjustable along the levers, so that after each partial rotation of the disks 1" t the levers will have bearing on two of the rollers on the studs on said disks, as shown in Fig. 1, for purposes above set forth; but

should the pattern-wheel not bein exact posi tion for the tonguing and grooving of a fresh stave the setting-levers of each wheel will move it into proper position as soon as the tongued-and-grooved stave has moved clear of it.

There are two pairs of substantially I- shaped rod-supports g g and g g respectively pivoted through their short horizontal arms to standards (1 g Figs. 1 and 3. The outer end of the longer horizontal arms of said rod-supports are enlarged and provided with bearings for the cutter-spindles 0 0, and in the said enlarged portion of the upper longer horizontal arms of the supports are also formed bearings for crank pins or bolts M, on the crank of which is mounted a roller. The bearings in the enlarged ends of the pivoted I-supports g g and g g are indicated by the symbols m m and m m respectively, and the rollers on the crank pins or bolts 91 in said end bearings m m and m" m by the symbols a n and n M, respectively, Figs. 1, 2, and 3.

The arrangement of the described devices is such that the patterns on the wheels f f will move between and in contact with two such rollers n n and n 01 above the cutters 0 0 0 0 on the on tter-spindles 0 0 and 0 OXX, thereby properly guiding the cutters in accordance with the patternwheels f f as plainly shown in Figs. 2 and 3.

The object of mounting the rollers n 01 &c., on a crank of a bolt or pin is to admit of their adjustment toward and from the pattern-wheels f f and therethrough the depth of cut of the cutters, the bolts carrying suitable nuts, as shown in Fig. 2, said devices being also shown in Figs. 5 and 5 The vertical arms of the I-shaped supports g g and g g are connected in pairs by cross bolt-rods z 2 respectively, the connection being an adjustable one through the medium of nuts and a yielding one through the medium of a spring on the bolts interposed between their heads and the supports g 1 Fig. 3, thus providing a yielding coupling that admits of the rollers 17, n n 02 following the irregular faces of the patterns and at the same time holding such rollers in contact with said faces and causing them to move in unison. Below the work-table T and immediately below each pattern-wheel is a cooperating feed wheel or disk 1" r respectively, on suitable spindles 2 and 3, Fig. 1, these feed-wheels or their shafts being positively driven, while the pattern-wheels f f*, fast 011 their shafts, are revolved by the rectilinear motion of the stave moving between them and their respective feed-wheels and therethrough the check- Wheels 2" 4?, which are also fast on the pattern-wheel spindles or shafts.

The feed-wheel spindles 2 and 3 have their bearings in the forked end of the short arm of levers 8 8 whose longer arms carrya weight 5 5 respectively. These levers s s are loosely mounted on spindles s s secured in brackets from the main frame F. The spindles on which the feed-wheels r and r are mounted also carry a pinion 10 w, respectively, the one, 10 in gear with a pinion W on a cross-shaft 1, that also carries a sprocket-wheel p geared by a chain to a like wheel w on the spindle 8X of lever 8 which spindle carries a second sprocketwheel (not shown) geared by a chain to a prime mover, in practice to a sprocket-wheel on the main driving-shaft that drives the primary feed-rolls for feeding the staves to the cutters that dress the opposite faces of such staves-as shown, for instance, in my aforementioned British patent. The fulcrumspindle 3 for the lever s also carries a pinion Q in gear with the one, 10, on the spindle for the feed-wheel r.

As shown in Fig. 4-, the forked levers s s are adjustable along their fulcrum-spindles 8 8X by means of collars 4 and set-screws with a view to properly adjust them and the feed-Wheels 1- 1" relatively to the patternwheels f f. Inasmuch as the aforesaid levers are Weighted a yielding bearing is provided for the staves being fed between the feed and pattern wheels, so that staves of different thickness can be smoothed and tongue-and-groove jointed.

It being understood that the cutters 0 and 0 are shaping-cuttersthat is to say, they give to the roughly-shaped stave approximately its proper shapeand that the cutters 0 o are the tonguing-and-grooving and final-shaping cuttersthat is to say, the cutters that form a tongue t along one edge of the approximately-shaped stave and a groove g in the opposite edge of said stave, Fig. 8 the operation of the machine may be briefly described as follows: In practice I use or may use suitable feeding devices whereby the staves are fed in a string or end to end first to the shaping-cutters o 0 and then to the tonguing-and-groovin g cutters 0 0 the staves mutually propelling one another. Staves of a length not exceeding the periphery of the pattern-wheels can be dressed, shaped, and tongued-and-grooved, or staves of a length equal to a fraction of the peripheries of such wheels can be made, and in the drawings I have, as already stated, shown the patternwheels as provided with three sets of identical patterns, so that at each revolution of a wheel'zthree staves of a length approximately equal to one-third of the circle described by the pattern-seat in the pattern-wheels are dressed and partly shaped and then tonguedand-grooved and finished as to shape. As soon as the work of a set of cutters upon a stave is completed the lever Z or Z rests upon two of the rollers on its check-wheel t" or 7?, thereby preventing the pattern-wheel being revolved farther than required by its momentum, and should such wheel when the stave clears or has cleared it not be in proper position, at which time its check-lever'will rest upon one of the rollers on its check-wheel only, the weight on said lever will turn the checkwheel and therethrough its pattern-wheel to bring two of said rollers into horizontal plane, when the next stave can be passed under such pattern-wheel between the cutters and be operated upon by the latter. The tonguing-andgrooving cutters o are so guided by the patterns on the pattern-wheel f and said patterns are of such a length relatively to the length of the stave as to form a tongue i on one edge and a groove g on the opposite edge, (which do not extend beyond the point at which the stave is crozed for the heads,

but stop short just within the crozing-lines,

as shown in Fig. 8,) while the depth of the groove and the height of the tongue are the same throughout their length. This construction of stave distinguishes it from staves as heretofore made, although the general form of the improved stave is the same as that of the staves heretofore used, while the tongue-andgroove joint between the staves has obvious advantages.

The machine as described has also the advantage over those hitherto used that a stave of considerable length or a number of short staves can be shaped and tongued andgrooved at every revolution of the patternwheels, which is not possible in stave-making machines as heretofore constructed, so

pose set forth.

far as I am aware, while if it were attempted to shape two or more staves at each revolution of the patternwheel the latter could not be properly positioned before the succeeding stave again caused it to rotate, which would result in a stave narrower at its longitudinal center and wider at its ends.

Inasmuch as both the pattern and their check-wheels are detachably mounted 011 their common shaft or spindle and inasmuch as the bearings of the latter can readily be made adjustable on the frame-standards f", Fig. 2, by means of bolts and nuts b larger or smaller pattern and check wheels can be interchangeably used.

Of course the machine constructed as shown and described can be used for planing boards and striking or cutting moldings, in which case the pattern and feed wheels can be removed and the cutter-supports held against swinging motion by securing them in any suitable manner to the machine-frame.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is-

1. In a machine such as described, the combination with a pair of cutters and a revoluble pattern-wheel adapted toreceive and sup port a plurality of patterns; of setting appliances adapted to set the pattern-wheel at each partial revolution equal to or about equal to the length of a pattern, for the pur- 2. In a machine such as described, the combinationwith two revoluble pattern-wheels, of a swinging cutter-shaft on each side of said wheels, a bearing for each of said shafts, a spindle to which the cutter-shaft bearings on one side of the pattern-wheels are pivoted and a second spindle to which the cuttershaft bearings on the opposite side of said wheels are pivoted, for the purpose set forth.

3. In a machine such as described, the combination with two revoluble pattern-wheels,

of a swinging cutter-shaft on-each side of of patterns on the wheel; of a setting-lever in the path of said pins, the latter so disposed on the pattern-wheel as to set the same Whenever said wheel has revolved a distance equal or substantially equal to the length of a pat tern, for the purpose set forth. w

5. In a machine such as described, the combination with a revoluble pattern wheel adapted to receive and support a plurality of patterns and provided with laterally-projecting pins equal in number to the number of patterns carried by thewheel; of a onearmed weighted lever in the path of said pins the latter so disposed on the pattern-wheel as to set the same when said lever bears on two of the pins, substantially as and for the purpose set forth.

6. The combination with the cutter-shafts 0 0 the vibratory bearing-standards g g for said shafts, the cuttershafts o 0 and their I-shaped vibratory bearing-standards of the fixed standards q to which the bearing-standards g g and the like standards g g are respectively pivoted, substantially as and for the purpose set forth.

7. The combination with the cutter-shafts o 0 the vibratory bearing-standards g g proximate to the cutter on the shaft, and a roller loosely mounted on the crank of said pin; of a revoluble pattern-Wheel the pattern whereof moves in contact with said roller, for the purpose set forth.

9. The combination with a revoluble pattern-whee], and a feed-wheel cooperating therewith to feed a stave between them; of a weighted lever on one end of which said feedwheel is mounted, and a suitable driving mechanism for said wheel.

10. The combination With a revoluble pattern-Wheel and a feed-Wheel cooperating therewith to feed a stave between them; of a weighted lever on one end of which said feed-wheel is mounted, said lever adjustable lengthwise of its fulcrum-spindle, and a suit- 15 able driving mechanism for said wheel.

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

CHARLES ELIS BRATT. Witnesses:

. CARL P. GEREN,

M. GENBERG.