The Repertory of Arts, Manufactures, and Agriculture (Volume 10, Nos. 55-60) (Paperback)

This historic book may have numerous typos, missing text or index. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. 1807. Not illustrated. Excerpt: ... Description of an Improvement in the Painters and Glaz. Machines, to prevent Accidents caused by theii' zjnstet.ness. By Mr. Joseph Davis, of the Crescetit, heir?, land-Road. With Engravings. From the Transactions of the Society for the Encoi ragement of Arts, Manufactures, and Commerce. Ten Guineas were presented to Mr. Dkvisfor Ms i Contrivance.... J. he frequent accidents which happen to painters and glaziers, from the unsteadiness of their machines, and the consequent misery brought upon their families, have stimulated me to endeavour at the improvement of such machines.. The model, which I have the honour of forwarding to you, will, in my opinion, answer the purpose in view. Generally, as you may see, the machine may be used without the guard; and, while perfectly firm and secure, it will cause no injury to the wainscoting or paint. But where the windows arc flush with the floor, and where no under security can be depended upon, the guard may be applied with advantage. Fig. 5, (Plate xvi.) represents the machine; the part a, is similar to that used by glaziers, which is placed on the outside of the window, b is an additional moving piece, which presses against the inside of the windowframe, and is brought nearer to, or removed farther from it, by means of the male-screw c, and its handle (I. Fig. 6 shews the lower part of a window, and the manner in which the moving-piece b, including a female-screw, acts against the inside of the window-frame. Fig. 7 shews a cross-bar introduced in place of the moving-piece last mentioned, which bar extends from one window-side to the other, and explains how the machine machine may be used where any injury might arise from screwing the moving-piece in the centre of the recess of the window. The general improvement consists...