Surface Machinery and Methods for Oil-Well Pumping Page: 100
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100 SURFACE MACHINERY AND METHODS FOR OIL-WELL PUMPING.
At some groups of wells in the Burma oil fields of India an end-
less steel cable is used to transmit power from a winding drum
attached to the engine-the prime mover-to the band wheels of the
different wells being pumped on the beam.
BELT FASTENERS.
The oil-field clamp, shown in Plate VII, B, at kc (p. 22), and in Fig-
ure 15, is more widely used at oil wells than any other type of belt fas-
tener. It is easy to apply and holds securely. However, the belt can
be injured if the clamp is shorter than the width of the belt, or if the
square edge of the clamp is placed next to the belt. The latter error
generally causes the belt to crack and tear at the clamp. This clamp
should not be used with belts of more than
six ply, as the abrupt bend produced by its
use with a heavier belt causes strains and
SOLID WOVEN BELT shortens the life of the belt. Some oil
companies use with the clamp a rubber
fillet, also shown in Figure 15, to give a
smoother contact with the pulley and to
BALATA BELT prevent the jump and lash often noticed
when this clamp is used.
Some of the other standard methods of
ti{ fastening belt ends together are shown in
RUBBER BELT Figure 16: A, Leather-thong lacing; B,
clipper wire lacing; C, crescent belt fas-
teners; D, steel-belt lacing; E, Jackson's
belt fasteners; F, alligator flexible-steel
belt lacing; and G, lap splice.
STITCHED CANVAS BELT When metal belt hooks are used, the
back of the hooks should have a slight
FIGURE 14.-Types of belts. curvature to conform to that of the pul-
leys, and for heavier service hooks having at each end two rows of
teeth of suitable length to clinch properly are advisable.
Some belt manufacturers recommend for all types of belts the use
of rawhide leather lace, in preference to any of the different styles
or makes of belt hooks or fasteners, provided the rawhide lace is
properly used. They say that tearing out at the lace is usually due
to a wrong method of lacing, an accident, or a defective belt, but
generally to the method of lacing or to an accident.
CARE OF BELTS.
Belting should be suitably stored or it will deteriorate as rapidly
in stock as in use. It should not be kept in stock more than three
months, even when not subjected to extremes of temperature. Ex-
cessive heat causes belts to dry out and crack.
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George, H. C. Surface Machinery and Methods for Oil-Well Pumping, report, 1925; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc12407/m1/129/?rotate=90: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.