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 
Tyre Tests for Heavies
4th October 1963, Page 54
4th October 1963
Page 54
Page 54, 4th October 1963
— Tyre Tests for Heavies
Close
Noticed an error?
If you've noticed an error in this article please click here to report it so we can fix it.
If you've noticed an error in this article please click here to report it so we can fix it.
XTENSIONS to Dunlop's proving L. ground at Erdington, Birmingham, announced this week, will enable certain types of tyre testing, hitherto confined to cars and motorcycles, to be carried out with heavy vehicles. Very accurate straight-ahead and sideways adhesion tests can now be conducted with heavy vehicles.
Built in consultation with the R.R.L., the extensions have several kinds of uniform surface and, with even textures and close control of the degree of wetness, many types of adhesion test will be possible. Kerbing damage can also be assessed on vehicles of up to 5 tons load per wheel.
Tags
Locations:
Birmingham