Page 7 Advertisements Column 1

New Zealand Herald, Volume LI, Issue 15551, 7 March 1914, Page 7 (Supplement)

jlpft csCow @rind fef JPenses. Lens- Cutting. As promised in a previous artiele, wo have endeavoured in the fol- jK lowing article to describe the various f processes of lens-grinding up-to-date, as I jr\ \ praotised in our workshop. The following ' / V Iff will give an idea, of the work necessary MjWgL \\\ p*rV^.jflj ill order to produce the highly-finished f1 i*/!^ lenses supplied by Samuel Barry, but, as Tl / it is difficult to perfectly illustrate and j H 1W( ( describe it, it will be our pleasure to give a practical demonstration to all who are Edging. interested in this important local industry, grindstone. and finished, either to fit in Taking the rough optical glass in a the frame, or for rimless, as the case may rough blank from Jin to jin thick like be this : — Where the lenses are rimless they are then drilled with a diamond drill, and put into their mountings. The glasses are now put on a finishing machine, where iaeastW' » I the screws are nicely finished off and v rivetted to prevent their coming loose. we cement, it to a steel block, with a With " Kontorik" and " Kryptok" compound specially prepared by Ourselves. l work " ll " me V locess » 8 01,e through. w-ul 4 i j »',i i ' . but on . different machines, and with With the aid of the steel took on our different tools and , necessarily, with a machines and a coarse emery, we grind great deal mere care than the ordinary the lens to the desired curve, and nearly lens. This particular work calls for a to the thickness required. A second great deal more to be actually done by emery— finer—is then used to smooth hand, where the ordinary grinding can be j. \—r , ~ i ... , worked on our automatic machines, the surface, and then a third emery, very ti * • n u , • r„ „. v . ~ , ■ The foregoing will explain very forcibly fine, to finish. To the same steel tool is (} ie most casual observer* just why then cemented with a special preparation, lenses that are specially made tor YOU, a pad of cloth for polishing, and with ground by mathematical methods just to rouge the lens is polished on this cloth. ™ >' om ° w ? individual condition of sight, and supplying perfect correction for the niost complicated defect, are rather more fer } expensive than those "stock lenses" that 45% are turned out in thousands from the facWr j tories at Home, ground on automatic A . y B machines Ho standard curves, with no re- ' gaitl to individual requirements. The V™ Steel Toot. number of processes that each lens has to i fl" „ 4 a undergo, the infinite care and skill beJ ■ '/fir/ *'/ frti\ stowed upon it by workmen who' must /<?T - | ATlis. necessarily be artists in their own line, .• —speak eloquently for the high grade, and "V ?/7/ffiym mathematical perfection of the finished * '/aHBi ■ article. When we consider the immense _ . , superiority that lenses manufactured under Grinding, Smoothing, and Polishing. these conditions must possess over the oldfashioned, ready-made article, the slight When it- is perfectly polished, it is advance in price sinks into insignificance. knock.,l off ,h. i.l block. Th, •&£ lens is then cemented to the block again, f or your own particular use. and the same process is gone through on the other side. Both sides being finished, i ,i it is taken from the block, cut out to the ' required size and shape, and in the right SAMUEL BARRY. position. This cutting is done with a diamond set in a special machine, as illus- Ontical Specialist trated in the heading of this article. ' Wheff it is chipped, the edge is just 290 Queen Street, Auckland. 1 rough, and it has then to be ground on j special stones, running like the ordinary . | .

j~~ y Pratt's Spirit for Your Motor a I Soup in a Second. j Ivelcon is made up in the form of little cubes, which when added to half ] a pint of boiling water produce instantly a beef beverage, unsurpassed in flavour and excellence. Its delicious aroma tempts the appetite, and every i part of it is real food which is invigorating, sustaining and satisfying. Ivelcon contains no gelatine, yeast or chemical preservatives, and it requires no seasoning or flavouring of any kind. Ivelcon is the essence of prime lean j beef, flavoured with fresh-cut vegetables, skilfully blended together. 6 and 12 cubes. Packed in dainty blue tint. |i 6 and 12 cubes. Packed in dainty blue tint. Ivclcon St. Ivel Consomme ST. IVEL, LTD., YEOVIL. SOMERSET, ENGLAND. Obtainable from i HUTCHINSON BROS., Ltd., H. M. SMEETON, Ltd., , And all leading Grocers. I Wholesale Distributing Agents: BOND AND BELL.

JUST ARRIVED! JAPANESE LILIES. Of all our Bulbous plants this is truly the most beautiful, with its brilliant and delicately-coloured flowers and delightful perfume. It ' will grow IN ANY PART OF NEW ZEALAND. ORDER AT ONCE I Lilium Auratum — "THE GOLDEN-RAYED LILY." Height, 4to 6 feet. Flowers 12 inches across ! Post free, Bd. each: 3 for 1/9; 6 for 3/Lilium Auratum Rubro Vittatum Gorgeous Flower, 10 to 12 inches across. Poet free, 1/6 each; 3 for 4/-; 6 for 7/6 Lilium Auratum Wittei — "THE NOBLE LILY." Distinctive, Beautiful White i 'owers, Post free, 1/6 each; 3 for 4/-; 6 for 7/6 Lilium Auratum Pratyphyllum— The Giant of the Lilies, yet one of the most beautiful, hardy, and easy to grow. Post free, 1/6 each; 3 for 4/-; 6 |or 7/6 NOW is the TIME to PLANT. NIMMO & BLAIR BULB SPECIALISTS, DUNEDIN. DYERS-UP-TO-DATE. FOR SUPERIOR DYKING AND CHEMICAL DRY CLEANING D. <9c A. BROWN, SHORTLAKD STREET. IST*. 1866. 'PHONS 185*. WORKS! GRAFTON TERRACK.

HOME DYEING (Good garments are often thrown B aside when faded. They are. ■ you gay, "not worth dyeing." I You don't seem to know. Why I waste clothes ? Be your own ■ dyer. | The Cost is Trifling I There are more than twenty B useful tints and colours. The I process is extremely simple. The I result is entirely satisfactory, g MAYPOLE SOAP (For Home Dyeing.) ALL GOOD STORES EVERYWHERt StaMwiotonQ mjm 1 ■■IT" Look at an Ensign When contemplating a new Camera. Ensign Cameras are the famous British made Roll-film Camera, the best of all DAYLIGHT LOADING CAMERAS. Call and see the AY Model Ensign. Note the modern movements, —the easy-working Shutter, the fine Lens. Then consider and compare the value with, other film Cameras at the same price, viz. : £-plate, £3 10s; P.C. Size (5J x 3s), £4 12s 6d. IT WILL BE AN "ENSIGN." Ensigns are made in all sizes, at prices up to £15 10s. HARRINGTON'S out Ltd. Next C.P.0., AUCKLAND, at WelliMtoa. '