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Expired
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William Reece
Charles Llewellyn Davies
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Individual
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Individual
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Publication of GB189725649ApublicationCriticalpatent/GB189725649A/en
25,649. Reece, W., and Davies, C. L. Nov. 4. Cramps.-Figs. 3 and 4 show sectional views at right-angles to one another of the cramp for securing flooring or lining boards. The frame A is secured to the joist E by a toothed lever b and a spike d. The plunger B is forced against the board &c. h by the lever C pivoted at f and formed with teeth e to engage with teeth on the plunger. The plunger may be clamped in position by a plate j acted on by a screw with a handle D.
GB189725649D1897-11-041897-11-04An Improved Floor and Lining Cramp.
ExpiredGB189725649A
(en)
Locking washer for nut, has sides provided with sliding and sharpened teeth, respectively, where sharpened teeth are inclined to value that is higher than pitch of screw by which washer is provided