Compressed air . s. Little attentionwas paid to the selection or testing of thematerials used in the motor. Tlic tool In examining into the reasons for theincreased economy and compactness ofthe later types in proportion to powerdeveloped, it may be stated that a highernumber of revolutions of tool-socket perminute has been one of the factors. Inone of the later types a two-speed gearprovides for both slow and fast opera-tions and this has been found of greatuse. An important point is tliat in the ear-lier types, the repair and maintenancecosts, as well as the operative costs,were excessivelv
Compressed air . s. Little attentionwas paid to the selection or testing of thematerials used in the motor. Tlic tool In examining into the reasons for theincreased economy and compactness ofthe later types in proportion to powerdeveloped, it may be stated that a highernumber of revolutions of tool-socket perminute has been one of the factors. Inone of the later types a two-speed gearprovides for both slow and fast opera-tions and this has been found of greatuse. An important point is tliat in the ear-lier types, the repair and maintenancecosts, as well as the operative costs,were excessivelv high, and that owing COMPRESSED AIR. 4005 to this condition, the time lost by themachine to productive service was verygreat. Even under these disadvantagesthe early machines were able to competeeconomically with hand labor: and now It is a very favorable sign that the ten-dency is toward: Decrease of weight, decrease of first cost, decrease of maintenance cost. <le- crease of operative cost, increase of cffi-. CONVENIENT RACK FOR .STORING AIR by a tool-room machiiiiit. 4oo6 COMPRKSSni) AIR. ciency and economy, increase in applica-bility to various classes of work, increaseof time in service. While it has been shown that the air by pneumatic tools. There are certainclasses and conditions of work for whichthey are peculiarly adapted, and in gen-eral practice, for reasons already men-
Size: 1401px × 1782px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectcompres, bookyear1896
