Identifier: practicalworksho00blin (find matches)
Title: A practical workshop companion for tin, sheet iron and copper plate workers : containing rules for describing various kinds of patterns used by tin, sheet iron and copper plate workers : practical geometry, mensuration of surfaces and solids, tables of the weights of metals, lead pipe, etc., tables of areas and circumferences of circles : japans, varnishes, lackers, cements, compositions, etc., etc., etc.
Year: 1876 (1870s)
Authors: Blinn, Leroy J
Subjects: Metal-work Workshop recipes
Publisher: Philadelphia : Henry Carey Baird & Co.
Contributing Library: Getty Research Institute
Digitizing Sponsor: Sloan Foundation

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
Erect the perpendicular line EF equal to the Slant height ofthe articles; draw the line AB at right angle to EF; draw theline CD parallel to AB ; make AB equal in length to one side ofthe base ; malie CD equal in length to one side of the top orsmallest end; draw the lines AG and BD, 0 and D as centres,with a radii equal to one-half the difference of the two ends, asfrom B to G ; describe the arcs I and 11; draw the right anglelines lAJ and HBK; set off JA and KB equal to FB, and drawthe lines JL and KM at right angles to JA and KB; also, thelines LC and MD at right angles to LJ and MK. Edges to be allowed. FOR DESCRIBING PATTERNS. 81 SQUARE BASE WITH A CIRCULAR TOP. To describe a Pattern for Tapering article^ the Baseto he Square^ and the Top a Circle to be in twoSections. Pig. 31.
Text Appearing After Image:
Erect the perpendicular line NF ; draw the line AB at rightangle to NF ; make EF equal to the Slant height, and draw theline CD parallel to AB; make a AB equal in length to one sideof the base; make CD equal in length to one-fourth the circum-ference of the top, and draw the lines AC and BD, C and D ascentres, with a radii equal to one-half the difference of the twoends; describe the arcs I and H, draw the right angle lines lAJand HBK; set off JA and KB equal to FB, and draw the lines JNand KN at right angles to JA and KB, N as a centre with theradii NE describe the arc LEM. Edges to be allowed. 32 PRACTICAL EULES RECTANGLE BASE WITH A SQUARE TOP. To describe a Pattern for a Tapering article, theBase to he a Bectangle, and the Top Square, to bein Two Sections. Erect the perpendicular line KG, fig. 82 ; draw the Hue AB atright angle to KG; make KG equal to the Slant hsight, and drawthe line DE parallel to AB; make AB equal in length to the longestside of the base; make DE equal in leng

Note About Images