Draw your solution in first angle projection and add the title and projection symbol in a suitable title block.
22
M10 × 1.5
Sphere φ19
22
66
Plunger
5
φ19
25 Free length
Add to your solution a title, scale, projection symbol, parts list and reference balloons.
Spring
70
φ 19
φ 10
3
Details of a cam operated clamp are shown in Fig. 18.3 together with a key showing the position of the various components in the assembly. Draw the following views in first angle projection: (a) A front view taken as a section through the vertical centre line of the clamp and generally as outlined in the key. (b) An end view projected on the right-hand side of the front view (c) A plan view drawn beneath the front view
5 Turns of Ø3 wire ground flat at each end
6
3 Cam operated clamp
4 Plug cock Details of a plug cock are shown in Fig. 18.4. Draw the following two views of the assembled plug cock:
7
(a) A view in half section showing the outside view on the left of the vertical centre line and a section on the right hand side, the position of the valve body being similar to that shown on the given detail. (b) An outside end view
45
φ 19
φ 10
3
Arm pivot
8
Add a title and a parts list. Hidden details are not required in either view. Include on your assembly suitable nuts and bolts and washers where applicable. Between the valve body and cover include a joint ring of thickness 2 mm. The gland should be positioned entering 10 mm into the valve cover. First or third angle projected views will be acceptable.
Cam pivot
Note: On assembly, fit a suitable washer over each pivot and drill for 2 mm Ø split pin
5 Air engine
2 2 M10 / 1.5 Locknuts and washer
4
8 6 1 7 Key to assembly
Fig. 18.3 (continued)
3
5
The component parts of an oscillating air engine are detailed in Fig. 18.5. Draw in first angle projection and, at twice full size, the following views; (a) A front view taken as a section through the engine cylinder and flywheel. (b) A plan view in projection with the front view and drawn below the front view. (c) An end view on the right hand side and in projection with the front view. Hidden detail is not required in any view. Add a parts list to your drawing and reference balloons to identify each of the components in the assembly.
