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Updated: June 29, 2025
There are to be three signatures of Ministers, that is, of Privy Councillors, to authorise the stamper, who is to be nominated by the King to affix the royal stamp to instruments in the King's presence. By the account from Marseilles, it appears that there are 11 sail of the line and 28 frigates in the French expedition, in all 97 sails about 350 transports, carrying 75,000 tons.
A No. 4 Dodge stone-breaker working about 8 hours will keep a five-foot Huntingdon mill going 24 hours, and an automatic feeder is essential. For that matter both are almost essential for an ordinary stamper battery, and will certainly increase the crushing capacity and do better work from the greater regularity of the feed. A 10 h.-p.
Unless the quartz is very clean, and, consequently light, I am opposed to the form of stamper box with mercury troughs cast in the "lip," nor do I think that a trough under the lip is a good arrangement, as it usually gets so choked and covered with the heavy clinging base metals as to make it almost impossible for the gold to come in contact with the mercury.
The constables arrested and searched him. They found on him a pair of opera glasses, the property of Mr. Stamper, whose house had been burgled and burned down on the morning of the 13th. Of this crime Butler acknowledged himself to be the perpetrator.
Spike half dragged his fearful charge across the floor, not too subtly shouldered a way between Bill Bardin and Terry Stamper, bowed gracefully to the strange beauty, and said, "Hello, sister! Shake hands with my friend, Kid Cowan." "Pleased to meet you!" She smiled graciously upon Wilbur and extended a richly jewelled hand, which he timidly pressed. Then she turned to Spike Brennon.
Another stamper is employed to drive down an inverted wedge, so as to release the working one, and enable the attendant to take out the cake. A press of this kind will turn out only about 12 cwts. of cake a day. We come now to the hydraulic press. This is certainly the most approved invention that has yet been adopted, and it is simply a Bramah press adjusted for the purpose.
I have known an attendant on suddenly awaking to the fact half through his shift, that he had forgotten to put in any mercury, to then empty into the stamper box two or three pounds weight; with what effect may be easily surmised. The following extract which relates to Californian Gold Mill practices is from Bulletin No. 6 of the California State Mining Bureau. I quite agree with the practice.
Of means for crushing or triturating quartz there is no lack, and every year gives us fresh inventions for the purpose, each one better than that which preceded it, according to its inventor. Most practical men, however, prefer to continue the use of the stamper battery, which is virtually a pestle and mortar on a large scale.
Sam had been folding the printed papers, while Terry Stamper operated a machine that left upon each the name of a subscriber, dropping them into a clothes basket, which he later conveyed to the post office. Wilbur enjoyed this work, running the long roller across the forms after each impression, spotting himself and his clothes with ink.
The quantity of water required for the effective treatment of gold-bearing rock in a stamper battery varies according to the composition of the material to be operated upon, but generally it is more than the inexperienced believe.
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