NOTES AND QUERIES.

Otago Witness, Issue 3593, 23 January 1923, Page 39

NOTES AND QUERIES.

Questions far reply in coming issue to bs IP •tired not later than SATURDAY night. Questions will NOT be replied to throngk Iks post. “Constant Reader.”—There are innumerable publications obtainable from booksellers and fanev goods shops for a small sum that deal entirely with knitting and crochet patterns and how to work them. Weldons publish a knitting book, Leach’s and hosts of others. “Old Timer.”—The record of every birth, death, and marriage is sent to Wellington where these records are kept for safety and identification. Your host plan is to see the Registrar of Pensions who would take steps to have the record produced. Failing the production of the record you could then make an affidavit and produce something—such as a family Bible—as proof of your age. In any case see the Registrar of Pensions about the matter. *‘G. W. W.” —Your experience has been similar to ours; letters not answered. As the letters have not been returned through the Dead Letter Office they are evidently received by some person. If money was sent on by you it might he advisable to communicate with the police. “Interested,” Fairlie.—Mr H. M. Davey, consulting engineer, 97 Frederick street, replies:—lt appears that you have a pond of water with a good fall, the fa Übeing 50 feet in length of 100 yards, or 300 feet of 6-inch pipes. Now, you have a small wheel, and ask if one of a larger diameter would give you more power? Not necessarily; indeed, it might give you less. The position is this: You do not state the number of revolutions per minute that your wheel goes, but it ought to be somewhere about 270 per minute for that head and that diameter of wheel. Now you say you need it for generating electricity, and” if so the quicker probably the wheel goes the better. You. also omit the speed of the dynamo. A JargeT diameter wheel would go slower, seeing that the rate of travel is really to be taken'from the periphery of the wheel, so that a wheel of double the daimeter travels at half the speed, and so on, wheels going quicker for higher falls. You would, of course, get far more power even with a slow-going wheel if you have plenty of water and correspondingly large outfit all round, but then there will have to be georing erected to get the speed, unless your electric plant is a slow one. Many firms keep pelton wheels, but as far as I am aware the firm of A. and G. Price, of the Thames, seem to go in for making wheels to suit all cases. If, therefore, you gave them all particulars of the speeds and water you want and can get, they will be able to do what is needed. Many firms have patterns of a few wheels which may or may not suit you. Had you more fall than 50 feet the speed would be more. Can you get this? Probably a valve near the wheel would be better, but there, again, I do not know if your pipes are strong enough to stand the pressure. If an air valve is required, it should be at the highest point of the pipe-line, and if there is no such point the highest being the inlet from the dam, an air valve may not be necessary. Air in pipes is a nuisance and a valve near the wheel would stop it, as far as can be judged from your sketch of the pipes. To put the matter shortly, if you can get more fall, you will get correspondingly more speed and power even with the wheel you have. If there is anything you do not understand, write again. “Puzzled,” Aparima, asks: (1) The price per gallon of black pepsin. (2) Where to obtain same. (3) How to make white puddings. (4) How to make black puddings. (5) Directions 1»W to knit man’s medium size waistcoat. (1) The stuff is r.ot known here as black pepsin. There is a yellowish i brown material sold at 6s 6d per oz, which I is soluble in water; the price of mixture / depending upon its strength. (2) Marshall’s Pharmacy, Dunedin. (3) White puddings made with fat of mutton, some oatmeal, and flour, and onion flavoured. (4) Black puddings are made of beef blood, intermixed with boiled barley and onions. No rigid adherence to proportions of ingredients, but a 3 favoured by different butchers. (5) We have not the space to publish knitting or crochet patterns. These can he secured at very little cost, and with a _variety of designs to choose from, at almost any fancy goods shop.

“Scholar,” Gore, should apply to the Education Office, Dunedin, for full replies to queries, as the space necessary for all details is more than we can afford. “Query,” Dunedin, asks: (1) Whether spiderweb coils can be used with a crystal set for wireless reception? (2) If so, could you tell the number of feet of wire necessary to wind 350, 370, and 450 metre spiderweb coils. (1) As primary and secondary in place of loose coupler, but it is not easy to vary the number of turns, so it is necessary to use a variable condenser in each circuit. (2) You would need approximately 50 turns primary and 75 secondlary, but it would be necessary to experiment Diameter of coil about 4jin (per favour of the British Electric Engineering Company, Dunedin). “Ayrburn.”—Obviously the man is looking at the photograph of his son. There wou be no sense in the thing if he were 100 ing at his own photograph. “Maths,” Geraldine, wishes to know the, address of the Mathematical Journal or English Mathematical Society. Messrs Duncan and Simpson, booksellers, Princes street, Dunedin, were good! enough to supply the desired information. G. Ben and Sons, Ltd., York House Portugal street. London, W.C. 2., or Mr Frances Htgigson, 89 Farrington street, London, E.C.4. LAW QUERIES. {Answered by s eotldtoT of the Supreme Oo«* Hew Zealand. Letters and Telegram* must bn to "LEX,” o/o Editor, Otago Witaetfa Dunedin.] “Inquirer,” Southland, asks—Doee a person who has served a term of imprisonment in New Zealand lose his civil rights? Answer. —No. “Rent-payer.”—Under the circumstances stated in your letter the tenacy starts from the 10th. “Member.” —(1) With respect to any public domain the Governor by Order m Ooun cil gazetted, appoints such .P«« iorls , (n< U exceeding nine) to be a Domain Board. O Under the circumstances stated in your letter the board is legally constituted. “Soldier.”—Your bdst course of action is to refuse to pay the tradesman’s account until he has completed the job in a workmanlike manner. “Anxious.” —As a leaseholder you have ro claim for compensation. “Legal.”—lf the loan is a personal one ft twopenny receipt stamp would be suL clent and! the receipt would require to be Bignec by the borrower. “Z. Y. X.” (1) If the lease has been signed by A there would be a claim against him for breach of contract. (2) The case would probably he taken in May. It is impossible to say what the costs of a Supreme Court action would be.