US1780721A - Device for the manufacture of doweled wooden boards - Google Patents

Description

Nov. 4, 1930. H. SCHEIDEMANDEL 1,780,721

DEVICE FOR THE MANUFACTURE OF DOWELED WOODEN BOARDS Filed June 1.1927 s Sheets-Sheet 1 ale 18221112188 1% 318? E2 1 HANS'S'CHEIDEMANDLL Nov. 4, 1930.

HySCHElDE MANDEL DEVICE FOR THE MANUFACTURE OF DOWELED WOODE BOARDS F'iledJune 1. 1927 s Sheets-Sheet 2 L W i- :iimmmeii: mm Mm I A O ||!|ll||||:l |i|v|l|1| |||||||||i||||||||| M T I W- N lll lII-l m W Am a N l I I l I I I l II a. M .l. m m

Nov. 4, 1930. 1,780,721

DEVICE: FOR THE MANUFACTURE OF'DOWELED WOODEN BOARDS- H.SCHHDEMANDEL Filed June 1, 1927 6 Sheets-Sheet 3 5% N Aw SLHUDEMANDEL Nov. 4, '1930. H. SC HEIDEMANDEL 1,780,721

DEVICE FOR THE MANUFACTURE OF DOWELED WOODEN BOARDS Filed June 1, 1927 6 Sheets-Sheet 4 HANS 5Ct' iE\DEMANDEL INVENTOR;

By" a Mwrnay,

Nov. 4, 1930 1 H. SCHEIDEMANDEL 1,730,721

DEVICE FOR THE MANUFACTURE OF DOWELED WOODEN BOARDS Filed June 1, 1927 a Shets-Sheet 5 HANS SCH EIYDEMAN DEL mv a N 'r or-z:

Nov. 4, 1930. H. SCHEIDEMANDEL 1,730,721

DEVICE FOR THE MANUFACTURE OF DOWELED WOODEN BOARDS Fil ed June 1, 1927 s Sheets-She et e HANfiSCHEIDEMANDEL I V EN TO B, Attorne -20 wood.

Patented Nov. 4,h1"9 30 j V I l HANS SCHEibEMANDELDF,MUQTICH GEBMANY v v DEVICEFORTHE MAN FAcTUBE-ornowELE-n wooi uu BOARDS Application 'fiIedJ'uneI, 1927, Serial 2N ieaaz aa a 111 mtnym j 12, 1926.

'The above invention represents a device of tongs. 'Shanks S and 9- are linked "to both for the manufacture of dowled wooden sides of piece 7, the shanks 'supplementingin boards and has 'for'its main object to avoid upturned position pie'ce 7 in regardto the the entrance of the dowels into the boards width or" slide pieces, the bite otton s 6. r

. to'be joined in-an unequal manner. I This has having notches 7 and 8 extending to both 55";

beenthecas e very oftenup to now, especially sides. The guidance fof the slide piece] is 7 when the boardst werejof 'di-fi erent hardness brought about 'by rails .10, the upper ends.

' in which casethej'dow'els would naturally of which are bent. Shank 43 otthetongs is enter the soft wood more easily than the worked by a pressure bar 11, which is linked v 10 woodof greater hardness; a to anarm i 12 .of the slide piece 3 and re so;

The device in question is based principally moved fromthe slide piece' 3 by therpressu-re upon an arrangement by means of whic lithe ofta spring'l3. The tree end'of the pressure dowels are brought between the boards to be; bar 1'l=isworking in a reciprocating sense:

joined by a kind of clamping tongs and are on a rigidly controlled pressure table 15by held in this position, so that the dowels canmeans of a travelling 'ballll i; zlh'e figure as not be'pushed out of thetongs duringithe shows the upper positionlof the slide piece;

first part of the compressing of the boards, the lower positionbeing rmarked-bydotted and consequently will penetrate the boards lInesythe side elevation. according toFigfi equallyindependent of the hardness of the shows 'the'lower position. l

' I H Theroperation of the'device:accordingsto 3?,0.

Followingis the specification of the de- Figs-4and5 is-the'ifollowing: q

i vice, which is illustrated in the accompany; A dowel 16 lying in the bite of: the tongs'zin ing drawings. Of the-latter Fig. 1 reprethe upper 'position'is held clamped. by way sents a section through. B of Figure. 2'; ofthe pressure,transferredthrough the :t'a-

Fig. 2 is a plan of Fig. '1; :Fig. 3 a sideblef15on'the1pressure bar 11 upon the shank 7e elevation of Fig. .1; Fig. 4 a plan. of the Ofthe tongs 4." The shanks 8 and -9 of the dowel casing on an enlarged scale; Fig. 5' is slide piece 3"Whl(!l1 are'swungout thereby by a -part of'th'e side elevation of Fig. 4:, Figs 6 theirown weight are lying on: the face ofarm Y a part of'a front elevationaccording to' Fig. extension '12,;50 "that dowel-16 project's one 1 on :an'en'larged scale with hookup; Fig. v"7 third of its lengthen both sides of the bite so;

represents another type 'ofathe device for of the tongs. Now, whenthetable moves placing the boards upon the working base, downwards inthe' direction of the arrow 18, shown on reduced scale; Fig. 8 isa plan the pressurec'bar 1 1 will swing Out'inthedi of;Fig. 7." p 1 I rection of the arrow. 19 worked the spring Fig; 4 shows: a "dowel: casing 1, which is 13, thereby releasing the shank 4 of the tongs s5 taperedtowards the' bottomlend and providthrough its upper lever. Influenced by its ed with-aslot of eniersion 2, in front of which own weight, the shank 4 will swingidown :in a guided slide pieceS is movably attached. the directionof arrowlt), relea'sing thereby Thelatter is one shank ofa pair of tongs, the fdowel I6. Theslide piece 3th-en moves -40 the other shank 40f whichxis linked to the bymeansofatspring 20 down'along the guidso upperend of the slide .piece 3'by means of a 'ing rails 10'as' much as is required, whereby hinge. LThe .bite oflthe tongs is marked the'shanks 8 an'di9 are caught by the rails and with the .number'S. The widthof the slide swung'upintothe plane of the slide piece 3. piec'e3 is made to corr'espond-withthe length As SOOI'L'ZIS the bite of tongs 6 and the notches of the slot ofemersion2,.-in consequenceof v.7 andSarriVeat the side'ofthe slot of emerwhichthe. latter isentirely covered by the sion 2,- anew. dowel will taketheplace of the slidepiece. j The thickness of slide piece 3 previous. Also in this positionof-the slide is; reduced on its up'perrend, making that way piece the slot-oi emersion 2 of thecasingwill a*tl1in piece-7, of which the width corresponds be absolutely shut ofiifihereby -i;h u h th to'th'e width-of theothershank 4 creeper shanks 58,8,I1d'9. 'During.;the followin-gupwardenga e wee ing-catch $93 ,311 wattuests;

which the shaft 82-drops into the lower posi tion (Figs. Ito 3);: The s haft- 82 hasbeen provided besides with arms 96; which cooper;

ate with the pressure ta'bl e in such a way; that shaft- 82 and'the sainetiine the stops 8'5 and 86 at theen'd of the upwards motion of; the tabl'eYare raised I into the stop; piosition; whereby'the-"catch 93 will catch again the block 94, being underthe infiueneebt its spring, and hold it that wayin this position.

The lever 8 1 has been equipped finally with an arm 97, which cooperates with one arm 98 of a switch 99 in such a way,'that the switch 99 will be closed, when theshaft 82 drops down. This switch isplaced'in the'ele'ctric Circuit I, which operates the chaindrive or the electro magnetic coupling. 46. The lever 98 of the switch 99 alsoicooperates with the table 15in such a way,'that'the switch. 99

will also be vclosed whenpthe table moves downwards. Thefswitch 99 is operated also by a second lever "loO cooperating with the I lever-84 in such a way, that-when lever 84 is swung out in the direction of the arrow 101, the switch 99 is opened through the influence of the power by which the boards'22 are com pressed. The switch 99 is'rnounted on its ro; tary axis 102-withthat great a friction, that it will rest in any position.

In a second electric 'circ'ult I I; which serves 1 for exciting the I electro magnetic "coupling 61 of the table drive, a switch'1jO3i's arranged which is kept open contrary to the action of a spring 105 through'the'pre's'sure table 15 in its uppermostposition by means of a lever 104:,

Connected in parallel withswit'ch 103a sec-.

on'd switch 106 has beenjarrange'd in electric circuit II, which is closed by 'the cross piece I movement of the table;

As may be seen especially in Fig. 3, a devi'ce has been arranged above the rails '23 and 241, supporting the boards22, withthe object to take up the boards 22, which havebeen made ready for the next operation. This device is supported by bearing pedestals 111 and 112. In these latter bearing pedestals the bolts 113 are guided'in a movable manner, the inner ends being equipped with supporting frames 114. The supporting frames 114 are stayed against the bearing 112 bymeans I o f press'ure springs; The outer ends of the 15 616 113 at tent adv-vs in form of hears aedserve for" the grip er the longer arms of I I the;revolving'angle1eversf1I6J, The-axis of rotation ofthe revolving dangle levers is marke withithe number 117:; s e-shorter arms 1 18-of the;revolving angle levers; cea

operate with table 15 in. such" a way, that,l

when thetableinoves up, theangle levers are 1 swung outward and thefranies 11%1 aredrawii that far' asunder, contraryto'the' actionofthe springs, 113, whereby-the boards22, lying rails 23 midst. After th'egtable 15' has assed I the lever arms 118; the frames 'll l willreturii to the starting position by means ofthe' work- 3 I a I I ing pow er of the spring 1113; so thatfother boards can be placed upon 'sa'rne. "Thework ing ends of thelevers 118'a're constructedas catches 119, which give,when the table moves down, thus avoiding any influence f (opera tion) ,upon 1 the revolving levers 1 16; The

frames are provided with 't -ravellingballs 121- mounted on articulated levers the balls are presseddownwards'bymeans of the springs 122 against the boards 22,- Wh-lClif'lil this instance arejto-bel'joined thus prevent-- ing the lifting of thev boards fro'rn their s'u'p r in a e 23 2t d in the -P e i r ie e'ration. j

In the electriccircuitII]? Fi .1 t me motor (not shown in the drawing) [wh' rangedywhich must-be worked by hand; the

lever of theilatter is -prtvided'with'tin-elem v .7 I 'j'e'ctions 1'0 ofithe themes in 1ts movement:

The operation of the device aec'ordingf to gation ,124,':"which cooperates with thepro Figures 1 to?) and6 is thefollowing "At the begi ning' the dowel casings I 1" are} influenc'ed (operated) by the weights 31 in thepositio'n, shown in Figil in run drawn'lines, inwhich position the d0wel's,-'a js as. n s'c ib some; in the discussion 3 of the Figures 4 and 5, are clamped into the I I space between two boards 22 to be joined; by

means of the slide-piece 31; In othenwordsg the position of the dowels isfin correspond ence with the'one shown incFigr' l full drawn lines. Pressure tablejlhis then in its 'upper position 6)". The switches lO3, 106 and 107 are open, switch 99iclosed; New,

"the Inoinent the switch 1'23is to be 'closethtllje' pulley 41 will-start'to rotate throughthe electric' motor not shown in the drawing-con;

trolledby thisswitch." Since the switch99fis closed, the electro-niagnetic coupling46 of the'chain-drive hasl'beenengageth thus starting the 3 drive of the sprocketwheel's Stir-and I mounted up'on fthe shaft 32, fover sprocket whe'elsf42 and 4 8, chain l4, sha ft45fco'1 1 -A pling 46, shaft 47' and worm genes,- 49; e

: ThechainsBSand 39 s tart tofrnove in the direction'of thearrbw 2c (Fig-5 2'). The first set of projections @tOfof the chains' will theIrebyhit upon beard-'22 on the rightymoving it I by th "rai s will moy fl kewise;

inor tr r fiQi'the eife ofvtheweigh s'31, in j a the di e i f ip eesi ir' w; t e bwe sIh tpalsQ-ilpeinfihe ef ;bQe. I(-F h s'bq zditeg h nw fi t 'dbw fi s-J I Q -,We l -the .,m nf lled ctibl I 11 91:; pressupe until ithits. upon. the stopsf85 I 1 186 re i n rce f he st pr 'yk a virtuee 11bit i fl erz-s r gsw (F .,6)'; -;that; r e fil et: th -T a s a e b pr ed I -fdur inggthe furtherg mot ioiiiofithe chains 38' end {39; whereby the' pzilitsfoftlle dowels -p j cti g f m bofih s d of he l fp n ongs, w l il nem le bQ- h i th ard q a 1 1y: ifijleensequeneegei the e12 mping vpew ei I ef h tongs, di ethel o elefl dam -1. pin pres urei ex wisd iupbi i l fl ds ib I. m ns Q thQ' PrQJ'Q iBi eO n yb n Y refl t th 'aqtieni 'i he .bu r Pri 'e' 8 3 will givjef way efid' swing outliiithe digestion. 'ofi jarrijyv: 101. TheL s itCh-QQ willj'beiopelied ,thereby through the ileve'rf 100, cafisihg the Y currentje cu 1 e; fleQt eme n fi T p'1ii1g te be interrupted ahelffihe' 'ehtins 38 I Y Tend ,39 tejfstopl AflthesaIhe tiniei'the, w ifch T 1 s iten p mf yl l s by ro e pi ce been {in its upper position; I staiits ,te moi e d wn,1-thereby releasing] in; the first instance ere y; a tua i h I e firer n tw -1 "pling fi l o f the tabIe dfiV WhQreby the' crank shafts 701 and 1 Tar e -stertedwto flkptat-gby. v meansaofvsthepower transmittedfifrkmiipulley 11;"through electyoj-nia'giletic eoqplingjfil, shaft r62,ibeYel ewh eels sea-1101161,; sheikand fgwo'r fn gear 166 168.; respeetfiew 69. The pressure tableflfi, which 'u'p'ft o now had ,,'that, While .the stepsi and '86 are moving v Vbadktbward'fche boards through flie foree Y fthefsprihgs8 9 a idlih leohsequeneepf such;

'metienjthe switch 106 islppe'ned, Jan intfir 'c uit 1 1 hi the: Coupling 6 1 ofephelt able drive.

'ChaimdI I eQ the same time the {siv it ch Y 106 is closed 0 n c'e more, thereby exeitingthe Th1; arm 9? hits lther'eb 1 upon the jf rames lll will di p 'upOnthe' supg tab es-.1 Wei-lemme@wxII iwntWes upon the lewei eng ne 1081015gt'l me swifu ch'lQ'fifj e thlls-ielosi 'gifog Bu'eIanexeitingpfthe 5 1-dQ e n tifies 191w: by re son ef irbe C us {Ithe P I grS t 'h};l 6f ha f p ned it Y fe v niwf erft m ne b k :o hfi ev 87wendiswit ches l06 and '10 7ferebin sefiesi "Ne mhe table la-w n, hi ge-pon th 1e r es The chains 38 and 39istart to m ve ag i u the stops 85 and Whefi the pressure hes drid' gflswingbut"in,the difection}of errew l' 101,;thejsWitchh99, will befdpeneld a second is, ic'lbsed'f. Q50. The Ffcoil s 'clisehggmjges' sen e springeat h' 935L-theifebyi'eleasing'Ithelshe'ft I 22 whi hedmp oge enwith.t ts psw- 1 and 8.6 into the loiwexipdsitioh,(IFigs l ahd S) 0 {I ofthe'switch 9.9;; the'latt'e Y I e. -955 ireGtion of pressurefb the pm] actions 40' if I V 1.1 PreSsUfQ table; 15 has passedfthe hjwerw Position stlartingayrea y. 1'}? its up Ward" 1 mm; level-pa s theileVergQS"without hev I ing, any effect upon same, vbeziuse'vthje latter Y h d bee wun Q 1 2 a rexd e Qrfdaflce' withsit sj lzist 'pOsitiO'nQ T he I. pressure table T h nIt pe s th wi ch-110.7 h'r g the a m 109 f It'v next hitsthe shdi t levef" arms 118 of the" f VOlving ,lle'versf I116; swinging :these out-fin such 'a; manner, ithe'tlthe'bpposite l ing -1 I frames 114 are "sep arated frem'feach bthejr ehd theisupply beards ezprevi u ly pl a ce'd 7' I v. 118 are released by theta ble, theframes 11 1 retflrn t0;1 ;heir"startingposition by means' I porting rails 23 end 24. .Afterv the leve'fs .bflthe op'erqtingpowerj of the springs '115,-f V

redy t d t ake up a new supply of boards At, I e the] end 0 f:. it'sl upward motion }the A pressure T 82 (the lower position of these arms is shown 'ifi dottd' linesin Fig. f6) thereby lift;

il agdfheen already'qut'o'ficurrerit thr bugh the i automatic Q'penihg Of the switch 7, .1196 Y the ehd qf itsQu pward mot-ion the pi'essil're table-15 ope n's jth'e' switch 103 by Way offthei the .chain 38 hits now upon, the arm12 lof the switch 123, opens this andthereby stops the driving motor ofthe pulley 41.

The device will thentake again its starting position, and the operation, can be started 'shiftable by the boards,-as pressed, so-xthat, The frames l-l l-for-stor ng the supply of? over again;

boards 22 for the next operation to follow, need only be used for such boards, which had not been sorted before according to their width. For boards whichhave been assorted according to their width,"the device shown in Fig. 7' will be employed. .The-supply boards 22"are piled there instoragelcases 125, which are provided with templ'ets 126,011 the bottom in such a way, that always the underi'nost I board can be shovedoutuponthe rails23 and 24:. This motion is .causedby a bar .127,"-

which, controlled by constrained movement,

travels to and:fro. Duringitsmovement in the direction of 'thearrow'128 the bar 127 catches a the undermostgboard of each casing 125, proceeding to, its outermost position on J the right and shoving thereby the boards up on the rails 23 and 24, On its way the bar 127" passesover bridges 129,which are loaded by weights 129 and after being .released by the bar,wil1 swingback into the position, shown in Fig. 7 in fullj' drawn linesw-On'its. way back in the direction ofthe arrow 130 the bar 127 is directed .through the: then open bridges 129 into shunts 131, which-. form a passage underneatlr'the storage casing 125. 'j

On leaving the switches the bar 127 will raise bridges 132, which consequence oftheir I weight under normal-conditions will take the position shown in Fig. 7 in full drawn lines, dropping back into this position after being released by the bar. l

, The 'undermostiboards 22' "have the -m'eantifm'e proceeded into the range of the templets' 126, so that these are caughtjonthe next following operatingstroke of the; 'bar 127. 4

1 In the; appended claimsthe term fixedp osition as applied to the dowels'is' used to indicate that the dowels areso held 'asto be immovable axially, radiallyvand circumferentially. V I-claimz' i -1. An apparatuszfor thel manufacture .of

'doweled wooden plates from boards comprising means for holding said boards inthe same 1plane,'mea ns for-pressing said boards together, and releasable means adapted to .hold a dowel immovable relative to the dowel holding means against theu'pressure trans- 'mitted through the'boards and mounted to be sponding distance'into the opposing board.

2.;In an apparatus for themanufactureof doweledi woodenplates from boards, in combination, means for holding saidxboar'ds in the same plane, means, 'for pressing said. boards together, releasable means adapted to f 7 hold adowel immovable relative to the dowel holding means against the pressure'trans mitted through the boards and mounted to be respondingdistance into the opposing;board,. meansrindependent of the board being joined for removing said; holding means from be-{- tween said boards, andmeans for completthe. same plane, means for pressing said boards together, vertically adjustable and horizontally, shiftable .means for holding dowels. between said boards andipre'venting;

longitudinal movement 1 of said dowels relative tosaidholding means during the greater part of said pressing operation whereby said dowelsv 'p'enetratefthe boards being joined equally regardless of their relative hardness,

ing said pressing operationaftersaid1 hold :ing means has beenremovedt 1. 3. Inan-apparatusfor the manufacture of I doweled wooden plates from boards, in com-j .55 a I ibination, means'for hQlding-saidboards in means independent of the boards being joined for removing said holding means from be tween said boards; and means forcompleti'ng said "pressing operation rafter Said holding means has beenremoved.

dowele'd'wooden plates fromboards, in ,com-

i v 4; In an apparatus for the manufactureof bination, means, for holding 'the boardsiin' the same plane comprising channel; @bar's,

chains riding in said channel bars, board engaging meanson said cha ns formovmg said boards when said chains areomoved,movable stops" mounted "adjacent, said boards and working against the movement of said chains -whereby said boards] are pressed togetheig :means; for restraining the movement of. said stops withina given pressure',;means for holda ing dowels inKa fixed'position between. saidboards, means .for actuating sa-idchains'to move saidboards together fun-til theylcontact; said 'dowel holding means whereupon con- .tinuedmovementof said chainsmoves said movable ,ystopsf, means operated: by the. m tion ofsaid stops tostop the motion of: said chains, further means operated by theinotionj of'said stops for withdrawing said dowel holding means from between said boards I whereupon said stops are movedbackto their original 7 position byjs'aid restraining means, means operated, byrsaid withdrawing 'means, forsetting'saidlchains inrmotion' whereby the 'pressing'operation is completed and'further motion of said chains again :movessaid stops and the motion of said "chains is again i stopped, meansioperated'iby this: second nove'- said 'stops for Withdrawing said stops fromthefplaneof thecompieted plate,

said stops for setting the chains in motion '7 movedj'gfromthe machine; ,1 i

eapply, chains riding said channel plates,

' board engaging-members'on said chains for p moving, said boards when said" chains are V a V p of doweledooden 7 plates from" bQ3iI dS,"1Il

*"fmoved," stops mounted adj acent, said boards chains are moved, gsaidistops being" movable 9 Y l lin-cthe plane of the-board's andiperpendicular Y 1. 54150: :LsajidF Plane; springs Iforrestraining: 5 the movement of saidxstops the'planeof said Q boards i within, Ia givenipressure, releasable- ,means for iho'ldingr said stops in: the "plane I boardsymea'nsjfor'holdingdowels inf I ja ifiicedyposition.ibetween said} boards, a mo 'fltor, a; switch connecting said moto'rfgto' 1a source "of energy, power transmission means connected to said motor, 'means connecting said :chains to said'transmission means :Where -by isaid chains arem'oi ed and the'i'bo'a'rdsare ressed together until they contact, said dow- *el holding means whereuponfurthergmove i menial-of ,saidi'chains moves said stops in the.

' clamping jaws whereby" said dowelfpenetrates i each boar-dequally, and means for releasing .100

@plane of. said boards, means operated by the movement "of .said I stops for disconnecting said""'chains-'from*said power transmission -means, spring; meansior' withdrawing :said

' 7. 111 anfappar'atilsfori the w led w qdem fis r m a l a i kbination, means holding f said'fboards' ,in 1:1

' zgdowel h'oldingl meansyineans restraining the a "removalof saidhdoweiholding means fromi 9-14 1 sal-didowels and"fOIVIQQStIDg thG aCtIOI'FOf --sa'- 1 d SpI'-1 Ilg;W1thdia W1Ilg means,. means for" -r eleasing said restraining means, means ope l er'ated-byf theamovement' of said stops in the plane 30f said boardsfor-"connecting" said re- ;4 .leasing'fl means to said powertransmission "means whereby. 5 said (dowel iholdin'gmeans I g V iare ;withdrawnf{whereupon saidjstopsf are spring returned tokth'eir original position, v I ogmeansi loperatedby: the release ofgsaid. re- 1.straining meansfor reconnectingsaid chains with said-'- poWer transmission m'eanswhereby" said chainsxare llset in motion and the f pressing f operation completed, 5 whereupon s ifnrther motionfozfi' sa'id chains-move :said

' iovablel'sto'ps in the: plane? of itheifbo'ardsria ljasec'o'nd time and the motion ofthe -ohainsr is again stopped, means operated by the 'sec ondmovementiof said stops for releasing the U ,meansholdingsaid stops in the plane or the 1 eo'boardswhereupon saidstops are Withdrawn fronisaid planQ-mean's operatedby the with draw'alfxof said; stops --for again connecting saidchainsto saidpower transmission means 1 I "whereby the completed plate-is removed 6 5 from saidchannel ibarsyme'ans forreturning gand means operated by"the ithdrayva1 of j-ffcooperating withsaid board engaging meln- "the -entrance o of more :tha on "from"betWeenlthe-boards: z

i I V j 1,780,721

' the. aforesaid idowelholder'rstrainingmeans" 1 back-to restraining pos t on, means operated by'thefreturn of said restraining meansqto return said {stops to the 'pl'aiiejof said boards "i furthermeans operated the return fof'said from s ai d board supply to said! channelfb'ars i f and to' replacesaiddoWel holding means be tween said boards'; and-means operatedb y the continued movementof-said chainsfor open in'gthe'said'motor zswitchwhereupon the ap aratus :is ready for another cycle of opera-1 tionsm I .r p y:

6. Ingan apparatusfor the manufacture" "combinationjmeans if'or' 1 holdirigsaid "boards inthe] same ip'lane', afdowelconta iner" adj'a- 7 v l icent said boar'dsgga'n opening "in' sai'd' container Y for allowing the e of, a d

guides. mounted-1 adjacent said container, gbai-islidablymounted onsaid guides having clampingjaws en asrr eenaa 'coveringgf sa'idl 'emersionf openinggmeans for normally.

=hol'dingfsaidvbar- Wjit ts clamping jauis'op Q posits said fopeningfmean's f I lsaid j aws; pressure'f means or'moving said 'barifrom said opening to th'e i planeo'f said means connecting said-f pressure" i kmeansto :onelof said j awe-whereby the dowel .:95 g isfirmly'ciampiedifitheplaneof'said boards by: said pressure means means for pressing '5 saidboards together until "they" contact said i the -pres'sure' on said f Ws and removing them *anufactureof' the same planegjfmeansfforf'pres sing said b ards together; container' ifor dowels mounted ad acentsaid-"boards and provided pression', means for movin said [depression 5 -W1th-its dowe1 fromsaid opening totheplane a iof said boards and means for applying pres-j sure to saidhinged member forv clamping said 1 I dowel andjpreventing longitudinal mo've- 4 'ment" of the same insaiddepression during 11 5 the" greater part of the presslngoperation;

whereby said dowel penetrates the boards being joined equallydregardless of their rela V five-hardness; r V a -'8.- In anapparatusior the manufacture 0f1125 doweled Wooden plates ifromboardsgin com; T

bination,--m.eans' for holding said jboards iin the same Jpla'ne, means." for pressing said boaids' together, as container -,'f0r dowels mounted adjacent said boards-and presided liso depression, means for moving said depression ,WllLlI IlZS dowel from said openmg to the with an opening foremitti'ng dowels, a slidably mounted bar ad ace'nt said container and covering said open ng, a depression 111 the end of said bar for receiving a dowel from said opening, a hinged member on the end of said bar adapted to hold said dowel in said plane of said boards,- means for applying pressure to said hinged member for clamping said dowel and preventing longitudinal movement of thesame in sa d depression durtion, whereby said dowel penetrates the boards being joined equally regardless of their relative hardness, and means for releasing the pressure .on said hinged member before the said pressing operation'is completed, whereby said depression is free to v be returned to said openin in the dowel container. 9. In an apparatus for the manufacture 'of doweled Wooden plates from boards, in combination, means for holding said boards in the same plane, means for pressingsaid boards together, a container for dowels, means'for feeding said dowelsfrom said container-to the plane of said boards and releasably hold? ingsaid dowels immovable relative to the dowel holding means against the pressure transmitted through the boards, said means being mounted to be shiftable by the boards,

signature.

R. ass sormmnivnlnnnnf f] means has been removed. In testimony whereof I V the greater part of the pressing. operaas pressed, so that when the dowel has suficiently penetrated oneboard it must move therewith to a corresponding distance into the opposing board, and means for removing said holding means from between said boards.

10. In an apparatus for the manufacture of doweled wooden plates from boards, in combination, means for-holding said boards in the same plane, means for pressing said boards together, a container, for dowels,

means for feeding said-dowels from said con-i tainer to the plane of said boards and releasably holding said dowels immovable rela tive to the dowel'holding means againstthe pressure transmitted through the boards, said means being mountedtobe shiftable by the boards, as pressed, so that when the'dowel has suflicientlypenetrated one board it must move therewith to a corresponding distance. into the opposing board, means for removing said holding means from between said boards and means for completing said pressing operation, after saidholding means has been removed.

11 In an apparatus for the manufacture of doweled wooden plates from boards, in combination, means for holding'said boards in the same plane, means for pressing said boards together, a container for dowels, vertically adjustable and horizontally 'shiftable' means for feeding said dowels from saidicontainer to the plane'of said boards and "rele'asably holding said dowelsimmovable relative to the dowel holdingvmeans against the

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