1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196 
Naked flames to heat this one
Page 65
If you've noticed an error in this article please click here to report it so we can fix it.
rr HIS 3,170 gal. tanker for carrying bitumen has recently been supplied to Shell-Mex and B.P. Ltd. by Scammell Lorries Ltd. An unusual feature, not often seen on road-going tankers, is the use of cargo heating tubes which are designed for naked-flame heating. Where bitumen is required at high temperatures for use on jobs or sites where there is no convenient rail siding, the tank can be parked containing its load for any period. When the time comes for use, oil-fired burners are clamped on to the heating tubes and it takes only a short time to bring the cargo up to a suitable temperature.
The tubes pass right through the tank and to two chimneys situated adjacent to the rear top-mounted walkways. The tubes are 8 in. in diameter and approximately 50 ft. long.