Forfatter: A.-M.Inst.C E., George Frederick Zimmer
År: 1916
Forlag: Crosby Lockwood and Son
Sted: London
Sider: 752
UDK: 621.87 Zim, 621.86 Zim
Being a Treatise on the Handling and Storing of Material such as Grain, Coal, Ore, Timber, Etc., by Automatic or Semi-Automatic Machinery, together with the Various Accessories used in the Manipulation of such Plant
52
THE MECHANICAL HANDLING OF MATERIAL
Fig. 53 is a similar type of bearing, for which it is claimed that it is perfectly
dustproof. It is the design of the Conveyor and Elevator Company of Accrington.
Fig. 53. Dustproof Conveyor Bearing made by the Conveyor and Elevator Co.,
Accrington, England.
These bearings are lubricated by a viscous grease, which is forced right through the
bearing surfaces so that the grease forms a dust collar round the surfaces a a.
Couplings for Worm Conveyors.—The different lengths of a worm are coupled
Fig. 54.
[ Fig. 55.
Fig. 56. Types of Worm Couplings.
together in various ways, chiefly by means of gudgeons, a portion of each of which forms
the journal for the intermediate bearings. Fig. 54 shows a gudgeon coupling two worm
sections. Three bolts, or else the shanks of the worm blades, form the fastening. 'I he
end of each worm section is strengthened by a collar which secures the spindle against