Bok Vocational Technical School - Craftsman Yearbook (Philadelphia, PA)

Page 81 text:

Optical Mechanics is the trade of the tech' nician engaged in the production of optical instruments and appliances for the aid, cor' rection, or protection of human vision. The optical technician is skilled in the neutralizing, centering, and laying off of lenses, surface grinding, edge grinding, frame bending and trusing, inserting and mounting lenses into supporting materials, and soldering. He makes glasses and spectacles according to prescription. Students of the optical mechanics course are trained in all of the above branches of the trade. Training includes practical instrucf tion in hand bench work, neutralizing of lenses and acquiring knowledge of the differ' ent forms and of the theory of lenses. Although the emphasis in the course is on the manufacture and adjustment of glasses and spectacles, students also receive experif ence in the repair and adjustment of various other optical instruments, such as micro' scopes, cameras, and fine precision instru' ments used by oculists and optical technicians. Let me give light . . . Ti-in Menon-mN'r or Vexice I can see yet without spectacles. MUCH Ano ABOUT NOTHING Let me see thine eyes, wink nowg now open themg In my opinion yet thou seest not well. KING Harem VI, Pain II Optical echanics

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Draftrng and machrne deslgn IS a trade winch occupres a promment place rn the metal trades 1ndustr1es Pract1cally all machmes or mechan1cal devrces are constructed accordmg to specrflcatlons or d1rect1ons g1ven on a blueprmt or a drawmg which tells exactly what the d1mens1ons and the shapes of the castmgs or parts are to be After the Oflglnal plan or design has been prepared by the deslgner It IS the work of the draftsman to make detarled drawmgs of every part of the proposed machme or devlce From these draw1ngs are made traclngs and finally blueprlnts Wl'llCh are used to guide workmen m the maklng and assemblmg of mechan1cal parts All these jobs center 1D the dravvrng room or engmeermg department of an mdustr1al plant The draftrng and mach1ne deslgn course covers the work usually done by the mechan1cal draftsman m tracmg draw1ngs deta1l1n0 dravvmgs maklng layouts and desrgmng mechan1cal parts Durmg the first year the student learns the use of drawmg rnstruments and the basrc techmques rn makmg mechanlcal drawmgs he p act1ces free hand lettermg drmensronmg sketchlng tracmg and detarlmg The second year brrngs the student 1nto sheet metal developments and scale dravvmgs 1nvolv1ng tolerances screw threads keys and p1ns In the thrrd year the course consrders problems 1n gears belts and pulleys chams and sprockets bearrngs cams mechamsms veloc1ty dlagrams est1mat1onofwe1ghts and strength of mater1als Instructlon m blueprzntmg heat treatrng machme shop work and electr1c1ty IS also glven echanlcal Drafting When we mean to bmld Well first survey the plot then draw He apprehends a world 0 gures here the model IVP It IS GS 60.851 LIS to CO1J.?'lf CIIOTYHCS ASY L m matter and orrn ollowmg sw OS ' 9 2 5 1 9 ' , c Q T ' a 9 a 9 ' . . Q . . . Y s 9 a ' 3 s J a a 9 N a s 9 ' rs 9 3 ' O O l I I C O C , f fi ' KING HENRY Arr Il ' ' ' ' Kms Hnmw IV, Pau II ouxxnh' 'f f l Love s Lzmous. s L 'r , ' l M' , rf ' . l f' - 3 A x . Y 7 X 4 ' ll -- . V . V px: .

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Palntlng and Paperhanglng The pa1nter and decorator 1S one of a group of bu1ld1ng trades workers who help to beautxfy and keep rn good cond1t1on the homes and other bulldrng of our c1ty It IS partly due to hrs efforts and methods of preservat1on that we are able to l1ve 1n and enjoy clean and pleasant surroundxngs and to use our bu1ld1ngs for long per1ods of tlme H15 Work cons1sts of pa1nt1ng the 1nter1or woodwork Walls and ce1l1ngs the exter1or walls porches and roofs of houses and other bu11d1ngs Students of the paxntlng and decoratrng course are tra1ned to become skllled all around mechanxcs who have a thorough knowledge of the varlous processes of the pa1nt1ng and decoratlng trade The student necomes adept 1n the use of the V3.I'1Ol1S tools of the painter and paperhanger and 1n the use and appl1cat1on of parnts varn1shes enamels lacquers and sta1ns 1nclud1ng the m1x1ng and matchlng of colors and the operat1on of the spray gun Through actual pract1cal work he learns how to prepare walls and woodwork before applymg parnts or wallpaper how plaster walls are patched and decorated how to remove wallpaper and the best way of hangmg ant1que1ng and glazmg It the preparat1on of Stams and fillers and the1r appl1cat1on to woodwork and furnrture how to parnt wood plaster canvas or metal the methods of erectmg scaffoldlng how to estxmate jobs how to select the proper des1gns and backgrounds for per1od furn1ture The school trammg also rncludes freehand sketchmg drawlng and stenc11 desrgns the study of color comblnatlons salesmanshlp and safety precautrons I lake your war Tell s how shall we be And you shall find I lu e 1t CmPl05'6d T A O . . O O Q Q ' 9 1 9 3 ' 1 1 . . . . a 1 a 9 s 1 . s 9 s ,a 9 1 9 9 r 1 Q a c ' 7 9 1 9 ' li, u . . . ' TITUS Axnnnsxcvs IMON OP THIN'