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 
Burnley Reader Wins Prize
Page 50
If you've noticed an error in this article please click here to report it so we can fix it.
THIS week's prize-winner is Mr. H. B. I Humphreys, of Burnley, Lancs. He has made a tool for lifting the C-type brake shoe springs fitted to the Leyland Atlantean and 36-ft. Leopard chassis on which he works. These, he says, are much more difficult to lift than the normal coil-spring type, which can be lifted quite easily with a bar, hook and fulcrum block.
The materials required are 12 in, of fin. mild steel rod, 14 in. of 1-in, by fin. mild steel, one fin, nut, two 2-in, by
fin, bolts, one I-in, by bolt, 6 in. of fin, conduit or tubing, and one fin. plain washer. The procedure is: I.The rod is formed into a hook at one end, threaded for 41 in. at the other end and drilled at right angles to the rod and in line with the hook, fin, from the end, 1 in. deep and tapped to take the bolt. The finished length is 11 in. 2. The rectangular plate is drilled
diameter at Ii-in. centres.
3. The nut is drilled and tapped on two opposite flats to take the 2-in, by fin, bolts, which are bronze welded in position and the heads sawn off to form a fixed tommy bar.
4. The fin, washer is bronze welded to the end of the tube.
5. The tool is then assembled by placing the plate over the threaded end of the rod, followed by the tube and nut, then the Tivin. bolt is screwed into the hole. The tool is inserted through the hole in the end of the brake shoe, with the long end of the rectangular plate towards the cam and the hook is engaged with the spring (the bolt facilitates this).
The nut is then tightened to take the spring tension, and slight levering on the end of the tool against the rectangular plate enables the pin to be withdrawn easily or re-inserted.