US917352A - Machine for making barrel-blanks. - Google Patents

Description

J. U. PALMER.

mcnmn FOR MAKING BARREL ELANKS.

APPLICATION rum) )(AY zs no Patented Apr. 6, 1909.

2 SHEETS-SHEET 1.

@013 1060/: I 1 C a Z L T L I T J. c. PALMER.

MACHINE FOR MAKING BARREL BLANKS.

APPLIOATION TILED HAY 25, 190B.

Patented 6, 1909.

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Specification of Letters amen;

firemen-a n c, 1.909.

,Applicatioli filed mi 25. race. Serial rial-1:24.786.

r citizen-of the Hni'ted'States, residing at Boston, in the county 'of-iSuffolk and State of Massachusetts, haveinventednew andusefilljlin jrovementstinj Macbines' for Making Biilrllanks, sp fi ti n. t {A r-hi3 myentionrelates to a machine for 1 s'equently made up into barr'els'.- Each blank s v lade'iro'rna rectangular piece of thin wood Jca ed veneec which'is placed in the machine pf-jwhicli the snowi g. a

hich is the subject matter ofthis invention,

cutting the aforesaid notches and in sue ihanner that theyshall be smooth and per- Ot.- r

' he'invention consists in the combination an arrangement of parts set forth in .the following s ecification and particularly pointed I butnfnlt e appended claim. a I a '30 Referring to the drawings: Figure -1 is a lan of a machine embodvingmy invention. ig; 2is'an elevation of the/same. Fig.3 is an enlarged detail. section taken on line 3-3 {of Fig. 12' Fig. 4 is an enlarged detail section oione'of thelcutter teeth taken on line 4- 4.

Like numerals refer to like "parts tin-oughout the sev'erai .views of the drawings.

Intl;'e drawings, 5 i the frame of the 1na- 'flchine on which are journaled two shafts 6, 6

suitable bearings on said frame, each'of'. said shafts having mounted thereona plurality"iofi cutters 7. These cutters which-are one of the princi 9.1 features of my invention are provided wit a lurality of teeth 8 some- -what like elongated saw teeth, each of said teeth being preferablycurvilinear1n outline, (is shown, and each bein made up, as it were, .of two blades 9, 9cwhic 1 may be integral as shown in. 4 and which are substantially M-shaped in cross section. The blades 9, 9

are provided respectivcly, with sharp cuttin ed call), 10 which, as seen .in Fig. 1, are i ci'n toward a plane A-A at right angles belt-L. 12, 12.

longitudina y 0 on the frame 5v of the maclune. plate 1A is provided with two sto sor two se-;

left-hand edges thereof, and 15 14 is provided on its under side wit the front of the machine, and two of which v D to" the axis of the cutter and between said- ;Be it known thatlJI-,-;l0nn C. P a i edges; The form of these teethis'such that when the cutter is rotateda'apidly the same adaptedt'o cut -a- V-shapednotch into. the, wood and in removing the material the cut is a shearing one which leaves-the finished 8-1": ticlefsinooth and true-..-' I

Fast to the shafted," 6,- rcspectiyel -are pulleys 1]; ii which aref' adapted to ro-' tats I in 'o fiposite dircctionsyres pectively, by I In-this connection it will be noted that the form of the cutters 7 correspends properly with the, direction of rota-.

ti'on'of the same'. 'The'pie'ce, of board -or veneer 13 which is to be made into a barrel. blank is shown Fig. 2 clam d between two members 151 and 15 of a hol er 1.6, which holder is su ipoip/edon' and edit ted tofslide two guides 1 7, 7 supported 1e lower ries of stops 18 ar'rang'kl along t e ri ht and rovir ed also with stops 19 adjacent 'to the rear edge thereof, as shown in'Fig. 1 When the u per clamp plate 15 israised by a suitable means hereinafter described the board may be laid on the platehtwvith-its right and left hand" edges against the stops18 and itsrearedge against the stops 19.; p

To move the upper clamp plate l5,*vertically,'I may employ any suitable incchan ismto actuate the same, whereby the bbard 13 may be clamped. between the two clamp plates 14 and 15'.to be operated upon by the cutters 7 and when coi'upleted may, be'released. For this purrose I preferably provide the following mechanism. The upper clamp plate'15 is provided at its four corners with ears '20 in which are secured vertical rods 21, respectively. .The lower clam .pilate our bearings 22 in which are journaled; four shafts 23, respectively, each of said shafts having last thereto an eccentric 24, said eccentrics being surrounded, respectively, by eccentric straps 25 pivotally connected to the rods 21, respectively, by'stuJs 26. Als'oiast'f to each of the four shafts 23 is a spur-gear 2'21,- two of which mesh into a rack 28 arranged at mesh into a, rack 28 arranged at the back of i the machine, as clearlyshown in Fig. 1, said. racks being arrangedto. slide longitudinally.

, the gears 27. shafts Meshing into the racks 28, 2S. respeci alternately onto the loose pulley. When the tively, :ire spur g ars 29,- 29 fast to a shaft 30 ouriiiiled in bearing brackets 31 2T1 mounted on the under side the lower clump pl.ite l4.

.ilso fast to the shalt 30 is =1 hand wheel 32 by 1 means of which said shaft may be rotated,

whereby the racks 2b are moved in one direction or the other. id racks airline; through 23, eeeeiiti'ie-.-; 2 eceentrie st raps: 25 and rods 21 to ra e or lower the upper chimp plgite. l5 i eeord'iiig to the direction in whieli the lhHi-Ii wheel 3-12 is rotated.

tries 24 are on eezi c and 3, the board 13 is per i-li'unp plate 15 and may be released in :in obvious iiiiinner. The upper and lower V-smiped notches 33 whieli are. subste ==.i'ia ll v alikeiind are arranged so that upper and lower notches of one pair substantially register with each other.

The holder 16 is moved alternately in opposite directions into 0 )erative relation with the cutters 7 by the ollowing mechanism.

Secured to the under side of the lower elziinp plate 14 is anut 34 having screw-threaded engagement with it shaft 35 extending trmisversel of the shafts 6, 6 and being jolii'lnlleil in suitable bearings 36 on the frame 5 ol' the machine, said shaftbeing held against longi- I tudinal movement. by suitable collars 37 fast thereto. The shaft nately in opposite (lllGCllUDS by any suitab e means, as or example, a set of two pulleys,

niiinely, two tight pulleys 3S and 39 between \\lll('li is ii loose pulley 40. The pulley SS is iulit )ted to be driven by an 0 en belt 41, while the whey 39 is adapted to ii a cross belt 42 which may be controlled after the well known fashion of the belts of a. planer, when-bx the open and cross belts are i moved from their respective tight pulleys V rigidly (lumped between the lower rhi-iiip plate 14 mid the up- 0;) may be rotated n-lteri e driven by holder 16 is moved toward the left, the left hand series of cutters 7 enter the notches of j that side and out into that ed e of the board forming therein notches of su stantially the some shape and size as the. notches in the per and lower chimp plates. When the dire-.rtion of rotation of'the s is t, 35 is re ersed, whereby the holder 16 is moved into the opposite direetion, thereby bringing the opposite dge of the board into operative relotion with the right, hand series of cutters after \Vlllt'll the holder is returned to mid-position, as The upper 130W in Figs. 1 and 2. clump plate 15 is then raised and the finished bin-iii; is removed.

it wil' be understood that during the' cutting opt-ration the blank is rigidly supported at. its upper and lower sides on both sides of the notches very close to the notches made by the (utters, so that-- there is no possibility of any chattering of the board which would 1 result in iiiiperlert notches. Having thus described my invention, what i I claim and desire by Letters Patent to se- -cu re is:

A rotatable cutter provided with a plurality of teeth substantially V-shaped in cross se-Qtion, ezieh of said teeth being provided with two cutting edges converging toward each other toward the periphery of said cutter said cutting edges being inchned at acute angles to radial lines from the extremities of said teeth, said teeth being sepaf rated from each other throughout. their length and thickness by spaces.

In testimony whereof I haw hereunto set my hand in presence of two subscribing witnesses.

JOHN C. PALMER.

\Vitnesses: Louis A. JONES, I 5. mm

V. MCCARTHY.

notches hare been out to their )ro er depth

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