Supplied as a kit for 8 pupils and consists of 5 plywood beams 600 x 44 x 3mm graduated every 38mm and with a groove across its centre to locate the fulcrum point. Also included are 4 fulcrums 32 x 32 x 64mm and 40 metal blanks 25mm square. The masses of the blanks are matched to ± 1%.
Direct Delivery – up to 7 days E8H25122
Incorporating 50mm diameter plastic pulleys carried in tough plastic frames. The blocks are available in single, double and triple sheave form with plain bearing pulleys. The bearing pin may be rapidly removed from the frame, thus releasing the pulley(s) and allowing easy ‘stringing up’. A simple locking system prevents the pin accidentally coming out. All blocks have a hook at each end. Overall length of frames: 70mm.
B. Single Pulley Block E8R06038
C. Double Pulley Block E8H30993
D. Triple Pulley Block E8H31029
E. Rod Mounting Pulley
50mm diameter aluminium pulley on an aluminium frame measuring 20 x 20 x 110mm. Frame includes 3 holes and a clamping screw to accommodate mounting to standard retort stand rods. Pulleys may be fitted to the frame with its axis of rotation in any 1 of 3 planes.
E8H25080 each £11.95 F. Clamp Fitting Bench Pulley
50mm diameter ball bearing plastic pulley. Mounted on an aluminium frame, for clamping to the edge of a bench or force board. The clamp is detachable from the bar carrying the pulley. Overall length of frame (pulley bar): 110mm. Maximum clamp opening: 25mm.
E8H25092 each £12.95
G. Rod Mounting and Bench Fitting Pulley
50mm diameter aluminium pulley carried on a plastic frame.
• Clamp fitting for anchoring to a bench/force board (max. width 30mm)
• Slot with clamping screw to allow attachment to a standard retort stand rod