ittry txptricnCtd . nair fcnow j buw w/ikvicd J fib ¡4 ii tf itrfute cfri lentil 0/4J piece flf moulding mi'jftrf dt fradi cnrfi tvfrjtn .'iL i cut pHiMwfaot Ml. Tfct uj* 0/ [he ihwijiij enchitF ttyl (0 be done ■»'Nitoift (frt fNf^EeiE diflieuJcy oik) y^h^i ¡iie oisuKince thcf tJie m\ue wiil Jie
Till! mOlt useful li.HJlL of iilnek k [It;It shown in I'"¡v- w]licit cart trim at tile Uhial initreing angle ¡Mt' tlcg., and alio at pndcLf. fiomf. workers prefer to suljstiLutc an at^glc of iiy I deg, liecanse this in the initreing angle for t$5 deg-, which is ;i risjlo angle plus 45 (leg, I; i--also the correct angle for making ocl agonal frames, ean lie s1 reugtheuetl with a liolt as aL D, I i^r i-Ilie bolt ^hoold be coühtermnk to avoid gashing the plane iron. When the ulne lias sei lhe SOffilCCS are planed dead true.
Block». The blocks are now prepared- I'd niinimi^e the n-Ftrel of warping i( atb tsahli' Lo hnikl Llietn tip as shown at C, Fig. 3, "I"lit: heart
It consists of a main framework wiltl (WOj blocks litted aliO^Ch one fixed arid the o(her free to slide ii]» and away from it. A threaded screw of either wood or metal en ^Is the movable block
¡3net enables wjbod to lie li\ed firmly whilst Iw-irig planed as in E'ig. l- Ally welhseasoaJtl piere of reliable hardwood eau l>e uicd.
l-'rame work.—■"] be main framework is made up liest, J( Consist (if three strips of 1} in. by l in. sLuif, with e iti. I in. pieob lx-iweei* as at Lu l i^, a, I liesfl last-named pieces should Ik- prepared in tWn lengths, each long enough lo 1 fiel tide also (he guide pieces scrcwied beneath tin- fi.tid and movable blocks, Ii is obviously ini|>or(ant that they ari- planed parallel so tFiat there will lw-i^ootl ilitling hi. Made in litis way the grain of all (he paris runs in the saute direction, and if no} shrinkage liikes lilace it will .iffeci ;iil in the Same way so lhat there Will [lot l>e atiy tlanger of the block either binding or ■working loose. I he joints sides in Lhe joining pieces liien- op|ioaiLe ways. Each layer ean lie id^'d np complete in i tie If, and then jointed to the next when uie gl»e has set. Bodi liloeks antL made in a single piece, and are separated ialee. Having planed the angle die block i^ placed in ]>nsition o[L the frame autl I he guiditig pieces scre^vd vp uiwleritoath, They^will have to stop short midway under the fixed end Iwcause of the strips in 1 he franti-work. A single saw etil then separates the bifida after which (he fisetl block tatl lie gl Lied and screwed permanently in position.
ITircc pieces of ^ im JtuEfarc pSpared to fie under eKl: frame^vni k. T^vo are icreWCi i^rb, np:r-at each end,' and I he third is serewec lo the movable block u> prevent it frotnj lifims; j!*eo D, Fig. a.. This lattt'i' piooe should he planed a trifle thinner than I he others to enable iL to pear the lice piece SCicwed under neath^ The latter is of 3 iu. In in. siniTand its purpose is 10 enable the wl»Je tliicig lo be liK<tl in lhe vice^ The movable ft
alocm TQ MtVKfi/T S-ifT
ijlock should be able Lo move without undue sliA-ncHs, bg| there should be Uftttiggcition oi looafiius. After filthy, the bearing parti can tie well rubbed with candle-gre^r.
At the right-hand end another block i-^ needed to coalite die screw to l>e added. It is shown at Ji. I' i|f- Screws art" used to Jix it. I fa won Screw k used the hole nhjduld tapped» hut in the event of .l metal SCtew Ijeing used a nut should Ik1 let into a recess cut in the top of the ljJoek, The older type of bedatcsad used it) have this nut aild ljolt h*in£ tor joining the wooden sides to the head and foot. A convenient lilting for the end of the wtwd screw •■< given liI JBj£ l'ig. -i. Il is siinpjya cup-castor socket with the pin riled LO the shape shown. The iihO in eta I pieces engage the pin, and, being screwed to die movable Ui>ck, enable the latter lo be pulled sideways. In (he ease of a metal screw it is meiely necessary to turn a dot at the end in which the tnetal pieces can etfaa^e.
liVb.cn Lhe whotc thing is finished, a finely set plane can Ije pasaxl over die surface of (he lilock to take out any amaH iLictjualily. Afterwards pieces of thin eaird can glued t" all the facej!. Thew can be renewed at any time, and save (he face of I he- liloeks from beiiiif damaged by the plain-. One point to note is that a piece nf waste Wood a trifie thicker than the square IoJ'l at l|H' front of tinblocks should always be placed k'neaih the moulding as ihowit at At Fitf. (> It can be a trifle narrower than the moulding mil jin jioI to interfere with the tightening up of the block. Ef it is not LLU'd Llie end of Lhe moulding project and Ijt-unsupported.
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