he bearing plate is slotted tional elevation, Fig. 4 showing the working of the a dangerous extent was shown by the vibration, which to receive the arm, and when borne down by the screw crank. The cover has an escape tube for the steam, was so violent that the men had to hold on whena it.serves to… … every average external wall—no mean consideration on BARLOW’S CLAMP FOR ROOF SCAFFOLDS, ETC. a town site where the ground is valuable. That bricks ROGERS’ absorb more moisture than most kinds of stone is ad- the corresponding toe of an adjacent clamp a ‘straight mitted, but they do not retain it…
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