US1305053A

US1305053A - Band-saw stave-jointer

Info

Publication number: US1305053A
Authority: US
Publication date: 1919-05-27
Anticipated expiration: 1936-05-27

Description

E. F. BEUGLER. BAND SAW STAVE JOINTER.

APPLICATlON FILED FEB. 5.1917.

Patented May 27, 1919.

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ATTURNEYS.

E. F. BEUGLER. BAND SAW STAVE IOINTERf APPLICATION FILED FEB. 5. I9I7.

7 SHEETS--SHEET 2.

Patented May 27, 1919.

/QTTD RNEYS.

E. F. BEUGLER. BAND SAW STAVE ,WINT-ER.

APPLICATION man FEB.6.1917.

Patented May 27, 1919'.

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BAND SAW STAVE JOINTER..

APPLICATION man fE.e.1911.

Patented May 27, 1919,

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ATTEJFQNEYE E. F. BEUGLER.

BAND SAW sTAvE 101mm.

APPucATloN FILED FEB. 611911.

Patented May 27, 1919,

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E. F. BEUGLEH".

BAND SAW STAVE WINTER.

APPLICATION FILED FEB. 6. 1917.

Patented May 27, 1919.

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E. F. BEUGLER.

BAND SAW STAVE JOINTER.

APPLICATION FILED FEB. e. 1917.

Patented My27,1919.

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NETE@ STATF FATENYF FFCE.

EDWIN-F. BEUGLER, F BUFFALO, NEW YORK, ASSIGNOR TO E. & B. HOLMES MACHINERY COMPANY, OF BUFFALO, NEW YORK, A CORPORATION OF NEW YORK.

BAND-SAVJ' STAVE-JOINTER.

Application ined February e, 1917.

T 0 all ywhom I? 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 new and useful Improvements in Band Saw Stave- Jointers, of which the following is a specification.

This invention relates toa band saw stave jointer and it has for its objects the provision of improved means for tightening the band saw, preventing` it from running ofi of the supporting wheels about which it runs and also preventing displacement of the same while the stave blank is being operated upon; also to provide improved means for guiding the band saw and giving the same the proper curvature corresponding to the desired bilge which is to be given to the barrel; also to provide improved neans for feeding and presenting the stave blanks to the band saw; also to improve the means whereby the stave blanks are gaged preparatory to being cut and held in place during the cutting ope-ration; and to iuprove the machine in several other details of construction.

In the accompanying drawings:

Figure 1 is a side elevation of the machine embodying myV improvements. Fig. 2 is a top plan view of the same. Figs 3 and 4 are end elevations thereof viewed from opposite ends of the same. Fig. 5 is a fragmentary longitudinal section, on an Venlarged scale, taken on line 5-5, Fig. 2. Figs. 6 and 7 are transverse sections taken on the correspondingly numbered lines in Fig. 5. Fig. 8 is a fragmentary top plan view, partly in section and on an enlarged scale, showing more particularly the means for adjusting the track or alinement and tightening the band saw, and the means for gaging and presenting the stave blanks to the saw. Fig. 9 is a vertical transverse section taken on line 9 9, Fig. 8. Fig. 10 is a fragmentary side elevation, on an enlarged Vscale and partly in section, showing more particularly the means for guiding the saw in curved form at the place where the same operates upon the stave blanks for j ointing the same. Fig. 11 is a horizontalsection taken on line 11-11, Fig. 10. Figs 12, 13, 1d and 15 are vertical cross sections taken on the correspondingly numbered lines in Fig. 10. Fig.

16 is afragmentary horizontal section taken. on line 16-16, Fig. 13.' Fig. 17 is a frag-` Specieaton of Letters Patent.

Patented May 27, 1919.

Serial No. 147,011.

mentary horizontal section of the machine, on an enlarged scale, taken on line 17-17, Fig. 1. Fig. 1S is a fragmentary vertical transverse section taken on line 18-18, Fig. 17. Fig. 19 is a fragmentary longitudinal section, on an enlarged scale, taken on line 19-19, Fig. 17. Fig. 20` is a horizontal section, on an enlarged scale, taken on line 20-20, Eig. 3. Fig. 21 is a plan view of a stave blank showing the manner in which the same is jointed by means of my improved machine.

Similar characters of reference indicate corresponding parts throughout the several views.

The purpose of this machine is to produce convex cuts or joints on Vopposite longitudinal edges of a stave blank, so that a plurality of staves thus formed will produce a bilge barrel when assembled which tapers from its central enlarged part toward its opposite ends. ln Fig. 21 the oblong stave blank is represented by full lines 1V and the convex joints which are produced at opposite longitudinal edges of this blank are represented by the dotted lines 2.

The main frame of the machine in which 'the several working parts are mounted may be of various forms but as shown in the drawings the same preferably comprises a longitudinal body, beam or girder 8 and two substantially A-shaped standards or pedestals 4f, 5 which support the body at its opposite ends and rest upon the floor.

G represents the endless band saw which has its fiat sides arranged vertically and its teeth 7 arranged at the lower edge thereof and which is so mounted as to form two longitudinal operative stretches and two turns which connect corresponding ends of the operative stretches. The turns of this saw pass around two supporting pulleys or

wheels

8, 9 which are mounted to revolve about vertical axes. One of these saw supporting` pulleys o-r wheels, for instance the pulley 8 is mounted on the upper end of an upright driving shaft lO which is journaled in suitable bearings 11 on the adjacent end of the main frame and provided near its lower end with a driving pulley 12 to which power may be transmitted from any suitable source by means of a driving belt. The other band saw pulley or wheel 9 is so mounted that the same may be moved bodily toward and from its companion pulley 8 for the purpose of tightening the band saw and the saine is also capable of being tilted in order` to cause the band saw to track properly orrun Vtrue thereon without liability of creeping on this wheel or throwing the sameV out of alinement. The means whereby this is accomplished are best shown in Figs. 2,- 5,`

horizontally movable carriageor slide 16 byV means of a horizontal pivot pin 17 which vpasses transversely thro-ugh the adjustingv arm adjacent to the arbor and'has its opp'osite lends arranged in inwardly projecting arms 18 formed on this carriage. The latter is guided at its opposite longitudinal edges-'in gu-

ideways

19, 19 formed-y horizontally and lengthwise` on the upper part ofY the main frame. VvThe tilting movement of they adjusting' arm andthe parts mounted thereon is eifected by means of an upright adjusting screw 2O arranged in a threaded o enino in the inner end of this arm and bearing at its lower end on a'horizontal bear'- 1ng-su-rface21 formed on the upper side of the adjacent part of the-main frame and'V provided at its upper end withy a hand wheel' or` handle 22 for turning the saine. The weight of the adjusting arm and associated parts together with thel pull on the band' saw against the supporting wheel 9 causesA the lower end of the adjusting screw 20 toremainA in engagement with the bearing surface 2.1. By turning this screw in one direction or the other the adjusting arm-and the corresponding saw supporting wheel may be tilted asl required to cause the same. to run true and properly about bothV supporting wheels. After adjustment the screw I20` may beheld in place by any suitable means, for instance by means of a locking pin 23v arranged in a horizontal guide opening in'the inner end of the adjusting arm and bearing against this: adjusting' screw, and a-cl'amping screw 24 arranged in a. threaded kopen-ing in the adjusting arm and bearing 'against this clamping pin, as shown in Fig. 5.

' The means whereby the adjusting arm and associated parts are adjusted length-.wisey of the-machine `for adapting the supporting pulley 9 to the length of the'saw and take up any slack inthe same preferably comprise an upright tension adjusting lever which is pivoted by means of a 'horizontal transverse pin 25 to a pair of lugs 26 pro-V vlength of the machine.

the main frame.- This lever is vprovided with a lower arm `27 which projects downwardly through an opening 28 in theV main frame and a bifurcated upper arm each branch or member 29 of which has a circularopening 30 the axis of which is arranged horizontally and transversely relative to the Below the upper part of the main frame is arranged a horizontal pressure bar 31 which is' secured at its inner end-v in'v an opening-in the lower arm of 4the tension lever by means of a set screw 32 -so that -thisbarinv effect forms a-partvof this lever. VTo the Aouter endl-of this bar is- VVattached the upper end ofa weight rod 33 which latter carries at its lower: endfa weight which is pref'c-irablyr made up of a plurality of sections'3`4, 'as yshown 'in Figs. 1,3, 4 and 5. Evy-*varying'the'number of weight 'sections anclalso adjustingthe bar 31 relative to the lowerfarmof? the tension lever the effect of the latte-r `for holding the band saw taut maybe variedas required. Extending horizontaillyfandY transversely through the circular' openings inthe two upperv arm branches o-f the tension vis a ful-'Crum screw nut or yblockr'A which is preferably square in crossl section and so: arranged that it bears with its upper and .lower corn-ers as knife edges against thesides-ofthese openings and thereby produces an easy' working contact between this fulcrum block'and the tension lever. crum block or screw nut is arranged' between the upper arm-branches of the tension lever which opening receives the screw threaded inner andof air adjusting rod 3.6.V They latterj'is connected at its. outer end by a swivel j'oilnt with theadjacent1in-ner endrof the adjusting arm. This swivel'joint 'may be variously vconstructed but :preferably by aV screw nut37 secu-red' to the outer end of this rodv and arranged within. al pocket 38 in the inner end ofthe adjnstingarm., as shownv in Fig.; By means of this adjusting rod the pull ot'theweightsA 34 is transmitted from the ytension lever to the adjusting arm so that the latter" is shifted outwardly lengthwise of the machinel and the supporting wheel 9i is caused tof bear yielfdingly against the respective turn of the band saw',` so that n'oundue slack eXi'sts ini the same.v By turning" the adjusting rodv 36 the relative f position ofthe tensionlever and the-adjusting arm'fmay be determined to; pro-duce thel most effective results,y the. turning' of this rod being` preferably effectedL by means of a hand wheel 39'l applied 'thereto between the fulcruin block andthe adjusting arm, as shown Figs;s2, 5 and' 8. 40, 41 represent semi-'circular outer guard arranged around the outer sides of the turns ofthe band saw. The guard 40 associated The threadedopening ofthe fuly with the supporting wheel .e8 is Apreferably supported on the main frame by means of a plurality of supporting arms v42 which are arranged substantially radiallyrelatively to this wheel and on the underside lthereofv andl connected at their outeriends with` the lower edges of. the guardi 40 by means oi clips 43 while their inner ends are mounted on supporting lugs 44 on the adjacent -part of the main frame. `The guard 41 associated with the bodily movablesupporting wheel 9 supported by means ofra pluralityv of sup-V porting arms 45, 46- arranged substantially radially below this wheel and secured at their outer ends-to the lower edge'of the guard 41 by means of clips 47 while their inner ends are mounted in lugs 4S on the horizontally movable carriage 16, as shown in Figs. 5 and 8. The arms 46 supporting the extremities' ofthe Vguard 41 arie preferably formed from a continuousy rod which latter passes withv itsj ,central part through an opening 49 inthe adjusting arm, which opening is preferably madey sutiiciently large. as shown in Fig. 5,4tofpermit the adjusting arm to move vertically the requisite extent as may be necessary fortilting the supporting wheel 9 and causing thelband saw to' run true. v y Y 1^ 1n the organization` of lthis machine?, ,as

.- shown inthe drawings, means are provided for presenting stave blanks to each of the longitudinal stretches of' the bandsaw so that Atwo operators'can be engaged in this work at the same time, whereby this niachine, in effect, is .doubled and its capacity increased accordingly. If desired, however,

'my improvements maybe .applied to only one stretch of the saw and inthe'ollowi-ng description of the parts associated withfone stretch-itis to be understoodthat the same applies to v'devices associated with 'both stretches of the band saw. 1n the operation' of this machine eachv stave blank is. moved horizontally and transversely i underneath the saw, then the blank-'is raised'so as to cause its inner longitudinal edge to be trimmed off on a curve by the toothed lower edge of the saw, then the stave blankl is low# ered and the opposite4 longitudinal edge thereof'is operated upon in like man-ner Afor the y.purposey of completing the jointing of the stave. In order to prevent the'saw Jfrom being displaced upwardly by the thrust which is exerted against. its lower toothed edge upon pressing a stave blank upwardly against the same, guiding devices are provided whichcoperate with the band sawA adj'acent'to oppositeends of each of its operative stretches. i Each of these guiding devices preferably comprisesv a guide wheel,

roller or disk 50 whichis arranged Vhorizontally and rotates about a lvertical aXis ofthe band saw. Y This guide wheel or roller is pivotally mounted o n the lower part of a bracket 51 which latter is capable of vertical and horizontal adjustment relatively to the saw for the purpose of causing this guide roller to engage properly withthe upper edge of the saw. Various means may be provided for 'eecting this adjustment of the guide roller bracket butas shown in the drawingsv these means comprise an upright supporting post or rod 52 which mounted at its lower end on' an arm 58 projecting laterally from the body of the main trame. The bracket 51 is capable of moving vertically and `also turning horizontally on the upper end of the post. rlhe vertical movem'ent of-this bracket is preferably effected by meansfof an upright adjusting screw 54 working in a threaded opening in the upper end4 of this brackety and provided at its vupper lend with a hand wheel 55 while its lower end bears against an abutment 56 ar. ranged on the lower part of the respective supporting postv After the horizontal and vertical adjustment of this bracket has been Yeffected for bringing the guide roller 50 into the proper position this bracket is heldl firmly in place by a clamping device whichpreferably comprises a clamping rod 57 movable transversely in the upper part oit the bracket 51 and having a wedging surface 5S which engages with the periphery of the respective supporting post. The tightening or the clamping rod is e'liected by means of a screw nut 59 arranged on the threaded end of this rod and engaging with the outer side of .the respective bracket 51` as shown in 1 'Each of the longitudinal stretches of the band sawL is deilected inwardly on a'curve corresponding to the curve which it is desired to give the longitudinal joint edges of the staves. The means for this purpose which are shown in the drawingsas embodying my improvements are constructed as follows: v

60 represents a plurality of outer guide bearing vblocks preferably of lignum-vitac which are arranged in a horizontal row and engage with the outer side of" an operative stretch of the band saw at a distance Vabove thev toothed lower edge thereof. These bearing blocks are so arranged that they deiiect the operative part of the saw inwardly and give the same a curvature corresponding to that desired on the longitudinal edgesof the barrel staves. The several outer bearing blocks are mounted on the inner side ot a supporting plate G1 preferably of iieXible. steel by means of rivets 62, as show-n in Figs. 10,

Y

14 and 15, or by other suitable means. This flexible supporting plate is secured on its outer side at different points in its length tothe lower ends of aplurality of

outer hangers

63, 73, by means of screws 64, as

inner guards are provided each set of fittings being adjusted for cutting barrel staves on some particular curvature. This enables the machine to be changed quicker for cutting different sizes of barrel staves than would be possible by shifting the several inner and outer hangers and their companion bearing blocks to suit some particular curvature of barrel stave which is required. This changing of one set ofsaw curving devices for another' is readily e'ected by loosening the bolts 79 and withdrawing the same forwardly from the slotted lugs 70 of ,the brackets 67 and then replacing the same with another angle bar equipped with the desired guiding devices. Inasmu-ch as the withdrawal of the supporting bar from the slots 72 necessitates shifting the clamping blocks 78 into such a position that their eX- tensions 80 do not project upwardly along the inner sides of these brackets these clamping blocks are turned vertically upon the bolts 79 so that the extensions 80 are arranged below these brackets and they` are also turned into this position when the angle bar is re-applied tothese brackets. In order to retain the clamping blocks in this abnormal position while the angle supporting bar is moved horizontally out and into its operative position, retaining means vare provided which preferably consist of a friction pin or plunger 95 arranged in a horizontal guideway 95"l in the lower part of the clamping blocks l7 8 and held yieldingly in engagement with the rear or inner side of the vertical flange of the angle bar by means of a spring 96 arranged in the bottom of this guideway and the rear end ofthe plunger, as shown in Fig. 9. When the clamping block is in its normal position the pin or plunger 95 preferably engages with a recess 97 in the angle bar for holding the parts in place more securely. By this means the clamping blocksmay be frictionally held in their inoperative position in which their upper parts do not project behind the inner or rear sides of the respective brackets G7 and thereby not interfere with the free application of the angle bar to or the relnoval1 of the same from the brackets 67, thereby eXpediting the changing of the machine for cutting barrel staves on different curves when this is desired.

Although various means maybe employed for presenting the stave blanks to be cut or jointed to the band saw those preferred and embodying my improvements are best shown in Figs. 1-4, 8, 17 and 18 and are constructed as follows:

Adjacent to thev underside of tive stretch of the band saw is each operaarranged a stave blank carrier which is movable verti cally relatively to the same on the outer side of ticle itsprefsrreflforni this card rier comprises a rest table or support composed of aA longitudinal bar 98 and a plurality of forwardly projecting wings or eX- tensions 99. This carrier isvmounted at its opposite ends von the outer ends of two vertically swinging rockl arms or radius rods 100 which are arranged transversely underneath the adjacent part of the band saw and are pivotally mounted on the main frame by means of horizontal longitudinal pivot pins 101 passing through hubs 102 arranged on the inner ends of these rock arms and through lugs 103 arranged on the main frame, as best shown in Figs. 2,- 8, 17 and 18. The rising and falling movement ofthese rock arms and the parts mounted thereon is preferably eected'by means of a horizontal rock shaft 104 arranged lengthwise in the lower part of the machine, a treadle 105 secured to the central part of this rock shaft and projecting outwardly therefrom, a longitudinal supporting rod 106 mounted on the lower parts of the frame standards and provided with two bearing hangers 107 in which .opposite ends of this rock shaft are journaled and two shift-ing rock arms 108 projecting inwardly from said rock shaft adjacent to opposite ends thereof and conneoted at their inner ends by means of upright connecting rods 109 with blocks 110 on the central parts of the carrier rock arms. Upon depressing the treadle the carrier rock arms 100 and the parts mountedthereon will be raised and upon releasing the treadle these arms and the stave carrier will be lowered bygravity. The downward movement of the stave oarrier'is limited by stops 117 which are secured to the outer ends of the supporting arms 53 in position to be engaged by the outer parts of the carrier rock arms 100, as shown in Figs. 17 and 18. The weight of this carrier and associated parts is preferably counter-balanced by means of a spring 111 having its upper end connected with an adjacent part of the mainframe while its lower end is connected with a lateral extension 112 on one of the inner shifting rock arms 108, as shown in Figs. 1 and 4, thereby easing the work for the operator in the act of raising the carrying table. The central part of the rock shaft 104 is preferably made square in cross section and the hub of the treadle is provided with a corresponding shaped opening which receives this shaft and also with a set screw 113 adapted to clamp this hub on this shaft at different points of its length, thereby enabling the operator to readily place this treadle in a position which is most convenient for op erating the machine.

The stave blank to be cut or jointed is placed by the operator upon the carrier or rest with one end thereof against a gage' 114 which secured to the of the table7 preferably at the left hand end thereof, as best shown in Figs. 1, 17 and 18. l

In order tov permit of shifting the end gage into different positions lengthwise of the sta-ve carrier to suit different lengths of staves the top of the vcarrier is provided witha plurality of openings 115 which yare paratory to raising'this blankby means of band saw determined by a lside gage 118 the carrier and cutting off its inner edge portion.V The :is thus moved forwardly underneath the which is vpreferably arranged opposite the central part of the inner side .of the Lcarrier and in the transverse path of the, stave blank. Ink

vided lwith an yopening or notch 119 in the central part 7of. its lower edge through which the side gage projects, as Ishown in Figs, 1,0 and V1,1. A

In @nder to prerentfthl ss'ffflm nterfering with the free upwardV movement of the stayebla'x-nk after thejla-tter has been gag-ell on Aits inner ledge preparatory to being trimmed by the saw this' side gage is so mounted that during the initial part of the upward mevement of the Carrier the .Same may be Withdrawn inwardly away from the inner edge ef the stave blank. For this purpese'tllesid sflsels mounted en a hermentally swinging rock arm 120 having a hub 121r which 'is pivgted by means of

upright pin

12,2 on' a bracket' .122g monnted on one ofthe supporting arms 58 preferably the righthand one, acam 124iarranged on the adjacentvcarrier rock arm 10.0 Mld engaging with a terne@ abutment or roller .125 011 .the hub ofthe gage arm. and .a return spring 126 surrounding the piint pin 122 and ,bearles" at eine .end against a

collar

12,7 O11 this pivot pin while its opposite .end bears against the hub of ,the gage arm, shownin Fig. 19. lllhen the stave carrier is depressed the spring 12)y moves the gage arm outwardly S0.' that the Sid@ ses@ is, in its' proper position to be engaged by thestave blank while the same is resting on the carrier. The ontwid inovenint of thev side gage is limited by engagement ef the roller 125 with the low part ofthe cani l124, as shown in Figs. '17 and 1.8,` During the iirst part o f the upward movementV of the stave carrier tll 124 lerY engaging with the" ffllslr-lZ Causes. the ses@ vllm en@ tlleSde `eig-tent which the stave blank orderbto .enable the side gage to assume this position the inner guard is' progage to be swung inwardly away from the fstave `blank and thereby -avoid displacing the latter after it has beengaged preparatfory to being operated upon by the band saw.

Means are provided which permit of moving the stave blanks inwardly on the stave jearrier so that its 4longitudinal edges are arranged even and in the proper position relative to the saw for trimming off the longitudinal edges ofthe staveuniformly. This movement of the stave blanksv is preferably effected -by two evener or placing jaws 128 `which are arranged adjacent to the outer side of the carrier anjdniountedon the up Per ends 0f tWQ transversely Swinging evener. rock arms their lower ends lto `a horizontalrock shaft 130, The .latter is journaled lengthwise in l29-whch are Segur-edm bearings 131 arranged onthe underside of thestave carrier, as shown in f Figs. 1, 3, 4'

and 1.8. The weight of the evener arms and jaws normally holds the same in their outermost position and their ontward movement is limited by meansef a StQP Cleric@ which preferably consists .of a collar 132-secured lo the Central eert V0f the @vener rock .Shaft and provided with a

stop finger

13,3 yadapted to engagewith the inner side of the @dla- A cent bearing 131, assliown in Figs.- 1 and 18.l

The weight of these evener arms and jaws is preferably counterfbalanced for easing the work ofthe operator by means ofa weight'l'lfwhich is secured to a'rod 135 depending from the lower lside o f the stop` Y collar 132, as shown in Figs. 1, 3, l and 18. This weight is preferably secured eccentrr cally t0 ShS-SHPPOFlPDs rnd 'by means of a set screw 136, sothat by turning this weight en this rod the effect QfA the saine may beadjusted to. secure the desired A count,er-baleneng of the evener. In order toenable the operator to conveniently shiftthe evening arms and jaws with either one or both of his hands the jaws are provided with laterallyv projecting .handles Y137 which are arranged adjacent to the upper surface of the stave carrier. By this means the operator can shift the cvener and at'the same time hold the stave blank upon the stave carrier, thereby preventing the stave blank from being displaced while the same is being fed inwardly over the stave carrier-against the side gage and underneath the saw. Inasmuch las both l@vener jaws are mounted on. the rock shaft 130 the saine are compelled to'niove transversely in unison, thereby insuring-moving the stave blank in .parallelism across thestave carrier and insure proper presentation ef its inner longitudinaly edge to ,the band'r fsaw.' for trimming it even and uniformly.

The centraland end portions of the evener rock .Shaft .are pref@le'lvl'yY mail@ .Square and the hub Qi the Stop lfinger is. provided Witt-1a correspondingly shaped opening to receive the -central squarepart of the shaft and the hubs of the evener rock arms arer likewise provided with correspondingly shaped openings which receive the endl portionsl of this shaft, thereby compelling these parts to turn with the evener shaft but permitting the same to be adjusted lengthwise thereon yinto differentl posit-ions as best suits, the particular stave whichis being Operated upon and also to lsuit the convenience ofthe operator. After adjustment these parts areretaine'd in their roper positionV on they evener rock shaft y means ofset screws 138, 139, as shown for linstancefin Figs. 1 and 18':

" While the'staveblank -is resting on the Vvstave carrier and being moved upwardly 'of a socket against the teeth of the `band saw the latter produces a pull upon the stave carrier which in the absence of any provision to prevent it might tend to displace the sameb This, however, is preventedby a retaining/device,

which, as shown in Figs. 2, 8', 17 and-18 preferably comprises an anti-friction roller 140 mounted on the left hand carrier .rock arm 100 and engaging with Van abutment surface. which is provided by a lug 141 secured. to the upper side of the left hand supporting arm 53.

1n order to hold on the, stave carrier 'after the same has beengaged and permit theoperatorto remove his hands lfrom the stave blank after the initial part of the upward movement of the carrier has been effected a holding device is provided which preferably comprises one or more presser pins 142 which are adapted to engage with the ,upper side of the stave blank adjacent to the outer,v side of the saw before the staveblank is lengaged by the same. Three vof such presser pins are arranged vertically and in a longitudinal row lengthwise of the Vpath of the saw. Each of these presser pinshas its upper end .guided in avertical guideway 143 formed'in one of the hangers 73, as best shown in Figs. 10 and 13 and is yieldingly held in its lowered position, so that its lower endis arranged below the teeth of the sawoby means of a spring 144, arranged in the guideway and bearing at its lower end against the bottom 145 formed in the upper end of the presser pin while its upper end bears Vagainst the undersideY of the horizontal {iange of the supporting angle bar. .The downward movement of each presser pin 1s limited by a downwardly facing shoulder 146 formed on the exterior thereofand en- 'gagingwith an upwardly facingvshoulder 147 formed in they lower part of the guideway 143, as shown in Fig. 13. Upon lifting a stave blank by means of the stave ,carrier it is rst engaged on its upper side by the presser pins which operate to hold the stave the stave blankin place.

blank against the saw, as well as during the irst'part of its downward movement after Ythe trimming operation has been completed.

'Byithis means the operator-may remove his Vthat the same engage with the outer'longitudinal edge vof the respective stave blank and move the same underneath the sawand into engagement with the side gage.V The .treadleis now depressed which causes the stave carrier to lift the stave blank and move its innerlongitudinal portion across the path of the saw whereby the respectivepart of the stave blank is trimmed off on a lcurve suitablefor forming a joint with others in making-a bilge barrel. As soon as thesaw' engages the stave blank thev operator may re- Y lease the evener jaws so that lthey return to their Aouter inoperative position and after the cutting operation has been performed the treadle is released sothat the stave carrier may drop into its lower inoperative position after which the operatorv reverses the stave lfor trimming its opposite longitudnial edge, thisoperation being repeated in like manner with each successive stave.

,Thisv machine is very efficient inoperation and permits of jointiiig barrel staves eXpeditiously andeconomically with comparative safety for the operator*7 with a mini mum amount of wear on the working parts and a minimum expenditure of power.` 1t has nor delicate parts which are likely to get out of Order, all' of its workingparts are arranged conveniently and are readily accessible foi'inspection, adjustment and repairs.

Owing to the fact that the workmen stand outside of thel machine while operating it Athe operation of the machine can be attended with greater' freedom, safety and comfort to the operator.

T claim as my invention: p 1'. A stave jointer comprisingy a pair of supporting wheels, a band saw mounted on said wheels and means for deflecting said saw between said wheels comprising a plura'lityv of guide blocks arranged in a longitudinal row and engaging with the side of lsaid saw, a flexible plate on which said blocks are mounted and means for lieXing said plate.v

2. A stave jointer comprising a pair of supporting wheels, a band saw mounted on said wheels, and [means for' deflecting said 'saw between said wheels'coinprising a plu-1 rality of bearing blocks engaging with the side .of said saw, a lleXible'plate ,on which said blocks are mounted, means for flexing said plate, av supporting bar arranged ad- `jacent :to the saw, and a4 plurality of hangers connecting said bar withy said plate.

'3. A stave jointer comprisinga pair of plstably connecting saidfhangers with said 4. A stave jointer vcomprising a pair of vsupporting wheels, a bandtsaw mounted on .Said wheels, and means 'for deflecting said saw between said wheels comprising aplurality of bearing blocks engaging with the sideof said saw, a `flexible plate on which said blocks are mounted, asupporting bar arranged adjacent to the saw, a plurality of hangers connected l'gwith said plate, and means for adjustably connecting said hangers with. said Abar comprising av clamping screw connecting, each of said hangers with said platea push screw mounted' on said barand engagingwith said hangen'and a draw screw mounted on said bar and engaging withA said hanger.

5. A stave jointer comprising a pair of supporting wheels, a bandA saw mounted on said wheels, andmeans for deilectingv said saw between said wheels comprising a plurality of bearing Vblocks engaging with the side of said saw, -a iieXible plate on which said blocks are mounted, a supporting bar arranged .adjacentto the saw, a plurality of hangersY connected with said fplate, and means forl adjustably connecting saidhang- Vers with said bar' comprising a .clamping Screw connecting'each .of said hangers with saidiplate,l a vpush screw mounted on said bar and engaging with said hanger,sand a draw screw mounted on said bar andenaging withv said hanger, said push and draw screws being arranged at rightvangles to said clamping screw. y 6. A stave jointer comprising a band saw, a plurality of bearing blocks engaging. with one side` of said saw .and operating-to defleet the same, a plurality ofindividually adjustable retainingblocks engaging with different parts ofthe opposite side of said saw, a supporting bar on which said `blocks are mounted, amain frame, and means for detachably connecting said bar with lsaid frame.

7, A stavejointer comprising a band-saw, a pluralityiof bearing blocks engaging with one sdefof said saw and operatngto de- .ing block f with said bar,

fleet the same, apluralityiof individually adjustable retaining :blocks engaging with different parts of the opposite side of said saw, Y

a supporting baron which said blocks ,are mounted, a main frame, and ymeans for detachablyA connecting said Vbar with said frame kcomprising brackets mounted-lon the frame Iand, provided with outwardly opening slots, and b oltsarranged insaid slots" :and connecting with'said bar.'

t 8. A ystave Jointer comprising a band saw, a pluralityof bearing blocks engaging with one side of saidsaw and operating to deflect the same, a plurality of retaining blocks en-V ,and connecting .with said bar, Clamping blocks arranged on the innerY side'of said bar and: projecting upwardly behind said brackets, a pivot bolt connectingeach clampscrew arranged on each clamping block and engaging with, therear side of said bracket. 9. A stave jointer comprising a band saw,

.and an adjusting l a plurality .of bearingblocks engaging with t one side ofsaid saw and'v operating to delect the same,` -a plurality', of individually adjustable retaining blocks engaging with different parts ofthe opposite side of said saw, a supporting bar on which said vblocks are mounted, a'main frame,and^1neans for detachably connecting Vs'aidybar with said frame comprising brackets mounted on the frame and provided with'outwardly opening slotspand bolts arranged in said slots ,and 'connecting with said bar, clamping blocks arranged on the inner, side of said bar and projecting. upwardly behind saidv brackets, va pivot bolt connecting each clampin'gublock with said `bar, an adjustc ing Screw arranged onfeach clamping block and engaging with the rearside of said bracket and a yielding detent device for holdingsaid clamping `:block in position relatively to said'- bar and bracket;

10. A staveV jointer. comprising a band saw, a pluralityofybearing blocks `engaging with one side of said sa-w and operating to deflect, the same, a plurality of retaining blocks engaging with. the `opposite side of -said saw,.a .supportingbar 0n which said blocks? are4 mounted, V a Amain frame, and means for ldetachaloly. connecting said `bar with saidtgfralne comprising brackets mount-Y ed von the' frame and provided with. outwardly openingslots, and bolts arranged in said slots' ,and4 connectingwith said bar,

clampingr blocks ar-ranged on the inner Y, side of said bar and projecting upwardly behind said brackets, a pivot bolt connecting each clamping block With said bar, an adjusting screw arranged 0n each clamping block and engaging with the rear Side of said bracket, and a yielding detent device for holding said clamping block in position relatively to said bar and bracket comprising a detent pin arranged in a guideway in said clamping block and engaging With the inner side of 10 of said pin.

EDWIN F. BEUGLER.

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