This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 Excerpt: ...A new striking arm was fixed, and the test recommenced at 9 a.m., April 1st, with the same mantle, and a somewhat stronger blow than before. At 4 p.m. the mantle was still perfect, having then received 562,800 blows. The machine was then required for other purposes, and the testing mechanism disconnected. The attendant ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 Excerpt: ...A new striking arm was fixed, and the test recommenced at 9 a.m., April 1st, with the same mantle, and a somewhat stronger blow than before. At 4 p.m. the mantle was still perfect, having then received 562,800 blows. The machine was then required for other purposes, and the testing mechanism disconnected. The attendant having omitted to remove the mantle, it was broken on the occasion of the pump running away, and causing very violent shock and oscillation throughout the loose disconnected parts. April 5th.--At 3.45 p.m. a new perfect-Welsbach C mantle was mounted in same manner, but without the anti-vibrator, with the same strength of blow as the last. The pump was started gently, and its speed increased gradually. The mantle broke off near the top at 70 blows. April 5th.--At 4 p.m. the anti-vibrator was refixed as before, and a new Welsbach C mantle suspended and burnt off. This test continued uniformly from this time till 6 a.m., April 10th, when the mantle was still perfect. The average speed was 100 shocks per minute, and the time being 110 hours, the blows received were 660,000. The author has specially tested this anti-vibrator, and iinds that it causes no depreciation of the intensity of the light, whilst the enhanced life of the mantle was most remarkable, thus completely confirming Mr. Carpenter's results. As an indication of the practical value of this anti-vibrator, the following experience may be recited: --In August, 1900, an ordinary C Welsbach burner, with Prof. R. Smith's antivibrator, was fitted under Mr. S. Carpenter's directions in one of Messrs. Greene and Co.'s lanterns in Cheam Road, Sutton, Surrey. At the present time, after twenty months' use, the same mantle continues to afford a satisfactory light. The anti vibrator is one of the f...
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Add this copy of Public Lighting By Gas and Electricity to cart. $32.77, like new condition, Sold by Phatpocket Limited rated 4.0 out of 5 stars, ships from Waltham Abbey, ESSEX, UNITED KINGDOM, published 2010 by Nabu Press.
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Seller's Description:
Like New. Used-Like New. This is a reproduction of an out of print title. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. Ships from UK in 48 hours or less (usually same day). Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. 100% money back guarantee. We are a world class secondhand bookstore based in Hertfordshire, United Kingdom and specialize in high quality textbooks across an enormous variety of subjects. We aim to provide a vast range of textbooks, rare and collectible books at a great price. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions. We provide a 100% money back guarantee and are dedicated to providing our customers with the highest standards of service in the bookselling industry.
