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Title: |
1902 Article-Thomas Ryder & Son, Heavy Lathe |
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Source: |
The Engineer Magazine, 26 Sep 1902, pg. 308 |
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Insert Date: |
1/5/2013 8:01:16 PM |
DOUBLE BACK GEARED LATHE
The illustration above represents a 25 in. powerful double back geared lathe recently completed by Thomas Ryder and Son, of Bolton, and intended for use with high-speed steel. The bed is 40 in. wide, and to get over the disadvantage of the cross set of the carriage owing to this width of the bed the makers guide the carriage along the bed by the front shear alone, and it is adjusted by a long steel taper keg. This is following vary closely upon the idea developed Messrs. John Lang and Sons, and already fully described in those pages. The carriage has square slides, and is gibbed under the bed both at the front and the back. An auxiliary tool rest is supplied, which can be carried on either wing on the carriage or turning work up to the full capacity of the lathe that will not pass over the carriage.
The loose headstock is of heavy construction. It has a 5 in. spindle, and is bolted down to the bed at four points, that the floor boarding will come against it neatly. To facilitate the removal of the chips at the back of the bed, dirt holes have been cast in at the floor level. The fast headstock has two ratios of back gearing, and the cone pulley has six steps, from 19½ in. to 38 in. diameter for a 5 in. wide belt. The spindle is of high carbon steel, and revolves in phosphor bronze bearings. The front neck is 9 in. diameter by 12 in. long, and the rear neck 5½ in. diameter by 9½ in. long.
Image Courtesy of Grace's Guide
http://www.gracesguide.co.uk/File:Im1902EnV94-p308.jpg |
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1902 Thomas Ryder & Son, Heavy Lathe
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