Pattern making and foundry practice; a plain statement of the methods of wood pattern making, as practiced in modern pattern shops, with complete instructions for sweep work and notes on foundry practice, together with numerous drawings taken from actual patterns .. . of the rail are left loose from the pattern and aredrawn out of the sand after the pattern is lifted,and these, being hollow, leave their own core inthe sand. A suitable core box for Fig. 101 may be made 136 PATTERN MAKING of the form shown in Fig. 104, especially if anygrooves, moulds, etc., are to be shown on thecore to corresp
Image details
Contributor:
The Reading Room / Alamy Stock PhotoImage ID:
2AKFBEKFile size:
7.2 MB (255.4 KB Compressed download)Releases:
Model - no | Property - noDo I need a release?Dimensions:
2696 x 927 px | 22.8 x 7.8 cm | 9 x 3.1 inches | 300dpiMore information:
This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.
This image could have imperfections as it’s either historical or reportage.
Pattern making and foundry practice; a plain statement of the methods of wood pattern making, as practiced in modern pattern shops, with complete instructions for sweep work and notes on foundry practice, together with numerous drawings taken from actual patterns .. . of the rail are left loose from the pattern and aredrawn out of the sand after the pattern is lifted, and these, being hollow, leave their own core inthe sand. A suitable core box for Fig. 101 may be made 136 PATTERN MAKING of the form shown in Fig. 104, especially if anygrooves, moulds, etc., are to be shown on thecore to correspond with the form of the outsideof the post. If a plain square core is all that isrequired, a core box of the desired form may bemade, open at top and bottom, which is laid upona flat surface filled with prepared sand, flour, etc., and struck off with a straight-edge, as describedfor the core box as shown in Fig. 25. In this. mould such a core would lie with the corner up-ward. Having endeavored to treat the subjects of thiswork in a manner both lucid and exhaustive, notonly by the directions simply stated, but also bymany illustrations, I feel confident that the care-ful perusal and study of this volume will be agreat aid to the intelligent and ambitiousmechanic in his battle for success in life in thisparticular field of usefulness. It was my inten- AND FOUNDRY PRACTICE 137 tion to have added a chapter, or at least a fewpages, to this work, upon the subject of thekinds of wood usually employed in the makingof patterns; but as the subject has already beenso ably treated by a writer in the July, 1904, number of Carpentry and Building, I havehere reproduced the article in full. WOOD FOR MAKING PATTERNS In a recent discussion of the different varietiesof wood adapted to the making of patterns, M.J. Golden, Professor of Applied Mechanics atPurdue University, Lafayette, Ind., brought outsome very important poin