NOTES AND QUERIES.

Otago Witness, Issue 3331, 16 January 1918, Page 35

NOTES AND QUERIES.

Qtwitlons lor reply in oonrfnj l*su« t* bs I* Mtr«4 not lafcsr than SATURDAY, night. Q«*«tion« will NOT b* roplkd to throng |h« post.

Equity asks:—"ls the amount of pension paid to the widow and child of a deceased soldier limited because of the superannuation they draw (he is a civil servant) and "because of insurance? Further, if the child receives an allowance from the estate of a deceased grandfather does this affect the pension paid?" No; the amount of pension would not be limited by the super--annuation nor by the insurance; nor would the allowance received by the child aflect the pension paid. Anxious.—" When an old-age pension is granted tho Government does not claim the property on the death of the pensioner. . . ' . lonobamus asks: —"A man, whose life is insured in the Government Insurance Depaitnient, dies a few days after yearly premium (payable in advance,) becomes due. but before the 80 days of grace have expired. Is the premium still payable, and if so is it a full premium or a pro rata one ?" -The full premium, having become due, is payable. D. S. 8., Nelson. —Mt H. M. .Davey, consulting engineer, Princes street, replies: Other things being it is better to have the prime motor travelling or running at either the 'same speed or a little faster' than tho principal machinery, or the machinery that takes mo3t of the power to drive, than the way so familiar to all of us, where a very powerful and slow motor—say either ft water wheel or steam engine—travelled at a slow speed, and gearing was introduced to bring up the speed to the quick machinery that needed it. That is why, in many cases, small and quick-speed motors are more economical than one large, powerful motor. You can prove this in various ways in a most simple manner. Take; for instance. a crab-winch or other hauling gear, and try your poWer'Sit the barrel, and see what little power you get at the spindle that the handle was fixed to, especially in a double or treble purchase one. Then see, in a clock driven by a spring, what a strong one is needed for the very little power of moving the hands on. In the ' case of a worm and worm-wheel, it is seldom that the worm can be even moved by applying power to the wheel unless the pitch of the worm is double or treble. I think you will see by these illustrations the truth of tho above statement. If not, write again. Subscbibeb, Mataura.—Mr H. M. Davey, consulting engineer, Princes street, replies: You should get about 11 b.h.p. The pipes should not be less than 12in, so you would need what are called 13in rjipes with the intake having a long taper, and considerably larger at the receiving end, with a grsting to prevent solid matter entering the pipes and perhaps smashing the wheel. See the remarks in last week's issue to "Subscriber No. 1" about sizes of wheel, etc. Your wheel would travel about from 120 to 130 revolutions per minute. Well, then, if it had 10 buckets and ran at 125 revolutions per minute there would be 1250 buckets passing to take about 1125 gal of water. You might split the water into two nozzles, and then they would only need to take a little less than two quarts each. You may, however, no! need that power, and so take a (?re;<t deal less water. Later on I si-:- that you only need -1 h.p., so 9in oi; oven Tin pipes might do. Don't think you increase power by being far from tho wheel to tho water, for, on the other

band, you lose slightly by the friction m the pipes, and so I think the 9m eize would be the better for you, for the 4 h.p. I am aßking the electricians about the dynarno, and they may reply in the paper OX write to you about it. With regard to the size of the nozzle, if you use all the water, and only one nozzle, it would be about 81in in diameter; and if you had two, eaoh would be about 2gin in diameter; but it would be-better for you to determine the power you really are S om g *° use, and the number of nozzles, when their Bize or sizes can be given, if you write again. D. 8., Kawarau Palls—Mr John T. Wilson Anderson's Bay, has sent in the words ol "The Drunkard's Raggit Wean, by Paul Rookford, as follows: . "A wee bit raggit laddie gangs wan'rin thro' the street, ' Wadin' 'mang the snaw wi' his wee hackit Shiverin' i' the cauld blast, greetm wi the pain j Wha's the puir wee callan ? He s a drunkard's raggit wean. He Stan's at ilka door, an 'he keeks wi wisifu' e'e, To see the crowd aroun' the fire a' laughm loud wi' glee} But ho daurna venture ben, tho' his head be e'er sae fain, For he manna play wi* ither bairns, the drunkard s raggit wean. "Oh, eeo the wee bit bairnie, his heart is unco fou, The sleet is blawin' cauld, and he's droukit y through a!nd through ; He's Bpeerin' for his mither, an' he wun'ers she's gane; But, oh! his mither, she forgets her puir wee raggit Wean. He kens nae faither's love, an' he kens nae mither's care To soothe his wee bit sorrows or kaine his tautit hair, To kiss .him when he waukens or smooth his bed at e'en; An' oh! he fears his faither's face, the drunkard's raggit wean. "Oh pity the wee laddie, sae guileless an' sae young; The oath that lea's the faither's lip 'll settle on his tongue; An' einfu' words his mither speaks his infant lips 'll stain, For, oh! there's nane to guide the barm, the drunkard's raggit wean. Then eurely we might try an' turn that sinful mither's heart. An' try to get his faither to act a faither's part, An' rnak' them lea' the drunkard's cup an' never taste again, • An' cherish wi' a parent's care, their puir wee raggit wean."