VI. MACHINERY. 411 



2109. Model, on a ^rd scale, of a plain and fancy goods 

 weaving loom, having 12-inch reed space. The model can be 

 driven either by hand or power. Robert Hall, Bury, Lancashire. 



South Kensington Museum. 



2 11O. Model, on Jrd scale, of a plain and fancy goods weaving 

 loom, having 12-inch reed space. The model is arranged to be 

 driven by power. Savill and Woolstenhulme, machine makers, 

 Oldham. South Kensington Museum. 



2111. Series of Temples (20 in number), of various sizes. 

 Used in power looms for stretching the woven cloth. The 

 temples are self-acting, and are suitable for woollen, cotton, and 

 other heavy or light fabrics. R. Hall, Hope Foundry, Bury, 

 Lancashire. South Kensington Museum. 



2112. Drawing of patent machinery for preparing chemically 

 pulp from wood, straw, and fibrous material for the manufacture 

 of paper of all kinds and qualities. Sinclair's system. J. 

 McNicol, C.E., 97, Buchanan Street, Glasgow. 



South Kensington Museum. 



Note. The drawing represents the following portions of the patent 

 machinery by W. Sinclair, for paper manufacture. 

 On a ijj-inch to 1 foot scale : 



Fig. 1 . Longitudinal through section of Sinclair's patent high-pressure 

 tubular steam boiler. 



Fig. 2. Front or firing end elevation of Sinclair's high-pressure 

 tubular steam boiler. 



Fig. 3. Sectional elevation of wood-pulp boiler. 



Fig. 4. End elevation of blow-off pulp receiving tank. 



Fig. 5. General plan of apparatus. 



Fig. 6. Front and side elevation of wood-chopping machine. 



Fig. 7. On a scale of inch to 1 foot. The soda ash (used to dissolve 

 the wood into pulp) recovery apparatus. A longitudinal and cross 

 section of the apparatus. 



Fig. 8. On a full size scale. The Sinclair's patent conical plug joint 

 for high-pressure steam boiler tubes. 



Fig. 9. On a full size scale. The section of a hollow conical boiler 

 tube joint. Sinclair's system. 



2114. Working Drawing, on a J scale, or 4 inches to 1 foot. 

 Sheave or pulley. For a hoisting crane. 



Side and end elevations. 

 Two through sections. 



South Kensington Museum. 



2115. Working Drawing, on a J size scale, or 6 inches to 1 

 foot. 



Spur wheel. Tooth wheel for gearing. 



Side elevation, showing method of laying out pitch of tooth and 

 tooth circle. 



Section of arm of wheel. 



