Blueprint reading; a practical manual of instruction in blueprint reading through the analysis of typical plates with reference to mechanical drawing conventions and methods, the laws of projection, etc . 3 >| 2- STY. 20 A--WB-1 CEN. I-STY. 27 A--i B=l CL. PLATE M I- A--k l-STYbbA-l I ? STY 89 B--1 #2- ADJ. WORM FIXTU, Z-STYWA-k B-l E/ATt/i I-STY. 90 A4 B4 CEM arm head J 16 El 2-5TYI0IA=l B-? ARM 5. CL BOLT TOOLS Z-STY20iAl B-l D-J^ARM JIGFOk ]? Bs D-14 CLAMPBOLT I - CENTRE A52 ;? CENTRE ADJUSTING WORM A 53 I ? CENTRE ADJUSTING WORM BUSHING AI9
Blueprint reading; a practical manual of instruction in blueprint reading through the analysis of typical plates with reference to mechanical drawing conventions and methods, the laws of projection, etc . 3 >| 2- STY. 20 A--WB-1 CEN. I-STY. 27 A--i B=l CL. PLATE M I- A--k l-STYbbA-l I ? STY 89 B--1 #2- ADJ. WORM FIXTU, Z-STYWA-k B-l E/ATt/i I-STY. 90 A4 B4 CEM arm head J 16 El 2-5TYI0IA=l B-? ARM 5. CL BOLT TOOLS Z-STY20iAl B-l D-J^ARM JIGFOk ]? Bs D-14 CLAMPBOLT I - CENTRE A52 ;? CENTRE ADJUSTING WORM A 53 I ? CENTRE ADJUSTING WORM BUSHING AI93- COUNTERBORE FOR SCREWS I- CENTRE ADJUST/NO WORM HEAD AI94-DRILL FOR if 2 TAPER I ? ARM SUPPORT CLAMP BOLT (LONG) A1338-A I ? ARM SUPPORT CLAMP BOLT (SHORT) AI538-B I- CENTRE ARM HEAD CLAMPIN6 PLATE A255I I ? CENTRE ARM BU5HIN6 B52-A I - CENTRE CLAMP BOLT ^^ ,-r /• CLAMP PLATE SPRING WASHER ^^Z ^^ I ? CENTHE CLAMP NUT BUSHING Sl^L9_ 5^^ ^/ffjcff XIII SECTION AB CENTRE. ARM HEAD A 25/5 MADE ON MOULDING MACHINE FIXTURE FOR CHUCHIN6 #12247 FIXTURE FOR FACING HUBS It 12248 JIG FOR DRILLING # 12249 TOOLS FOR DRILLING (SEE LIST) JIG FOR DRILLING ADd BUSH. SCRH0LE5 #12250. SCALE J SIZE JIG FOR DRILLING PIN HOLES # 12251 JIG FOR DRILLING PIN HOLE JO LOCATE BUSHING #12252 CUTTERS FOR MILLING ARM BRACE SEAT M12253 P12254 ARBOR FOR SPLITTING # 12235 GAUGE FOR TESTING CENTRE DISTANCE #12255 All A2. AA2. Bli. B2. BB2. BYI. BY2. Bl,AAI. AAll BBI. BBli CENTRE ARM HEAD (COMPLETE) DATE JUNE IB BIT tt. BROWN & SHARP£ MFG. / PROVIDENCE. \ A 2313 BLUEPRINT READING 29 PLATE XIII CENTER ARM HEADf Plate XIII is in some respects similar to Plate IX. In read-ing this plate, the machinist should first strive to get a generalpicture of the piece well fixed in his mind. As an aid to this, hewill first note that the work, a center arm head, consists of twoprincipal hubs separated by a web or shank to give a center-to-center distance of 7J inches. The upper hub is simp
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectmechanicaldrawing
