APRIL 1974 60C
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APRIL 1974 60c Fi • • o ° ".,o" ShJ'mpo-West,the company that brought you the great Shl'mpo-West° RK-2 potter's wheel, nOW brings you \ ,,,, P the great ohimpo-West RK-2 potter's wheelJ Once you design a wheel like We think the competition is the RK-2, there aren't many ways it can be quite flattering. It has even spurred us on to improved upon. People havetried (believe us!) try radical new ideas and designs. But the but it's tough to come up with something that end product is always basically the same: matches its compactness, power, durability, quality construction, good engineering precision, control and quiet, trouble-free design. The RK-2. We think this is the performance. right kind of progress! SHIMPO-WEST P.O. BOX 2315, LA PUENTE, CAUFORNIA 91746 MAKE YOUR OWN KILN Save money.., add flexibility with Johnson burners Johnson has gas burners to meet all kiln sizes and tem- Simply add Johnson burners and kiln refractory as your perature requirements. They are made of rugged cast iron needs change• with heavy brass valves• They are easy to install and op- Cut your investment• Look into Johnson burners now. erate, and best of all, the cost of a "custom-made" kiln They are available in two basic types: (1) Atmospheric with Johnson burners is a small fraction of the cost of a -- recommended for small kilns and kilns with low tem- Power (blower operated) manufactured model. perature requirements; and (2) The size of your "custom-made" kiln is easy to enlarge. -- recommended for larger kilns. How to choose the right burners for your "custom-made" kiln: Figure the vo/ume of your kiln in cu- bic feet by multiplying internal length by width by height. For ex- ample, a kiln two feet square and three feet high would be 12 cu. ft. Exact number and type of burners and burner locations will depend on kiln construction, size and tempera- ture requirements. The examples shown here are typical. For factory recommendations, send interior kiln dimensions, wall construction and top temperature required• Johnson Adjustable Power Burners The most popular type for ceramic studios and art departments, these rugged burners are equipped with powerful, quiet Johnson blowers with continuous duty motors, and heavy brass shut-off valves• Specially designed flame retention noz- zle allows for wide adjustment of gas input and easy flame adjustment for obtain- ing desired reducing and oxidizing atmospheres. On large kilns two or more burn- ers, or torch tips with manifold, can be used for uniform distribution of heat. BRNR. TOTAL I BLOWER TORCH GAS INPT. SHPG. WT- I PRICE PRICE NUMBER LGTH. MTR. SPECS TIP BTU/HR. LBS. FOB FAC. W/SAFETY* 321 30" 1/3 H.P. 1 1/2" 200,000 29 $169.00 $219.00 Cont, Duty 342 30" 1/3 H. P, 2" 400,000 30 $174,00 $234.00 ~st0 t0cu ~T. ==:~]X Cont. Duty L~__~q=:::~X;~;eeeBVuer nnteUr ~" ._J 1 ~:~ X 323 34" 1/3 H.P. 2--1 1/2 400,000 34 $18900 $279.90 Cont. Duty w/Mftd. 345 34" 1/3 H.P. 2 -- 2" 800,000 35 $198,00 $29600 Cont. Duty w/Mfld *SAFETY EQUIPMENT FOR: 321 -- Baso Pilot, thermocouple, Baso switch and 3/4" solenoid valve. 342 -- Baso Pilot, thermocouple, Baso switch and 1" solenoid valve. 323 & 345 -- 2 Baso Pilots, 2 thermocouples, 2 Baso switches and solenoid valve. Ultra-Violet Safety System w/spark ignition is ]vailable for above burners at extra cost. Johnson 1-1/2" Venturi Tube with Johnson No. 26 Type C Retention Nozzle and Valve Bunsen Burner with Valve These cast iron Venturis, when Recommended for small kilns and equipped with Johnson retention kilns with low temperature applica- nozzles and heavy brass valves, give tions only. Equipped with heavy perfect combustion for extra effi- brass shut-off valves. Can be used ciency. Complete with accurate, singly or mounted in gangs depend- easy-to-adjust air shutters with posi- ing on kiln size and heat distribution ) tive locks. Can be used singly or in requirements. Height -- 10-7/16"; gangs depending on kiln size and Gas connection -- 1/4 in.; Gas input temperature requirements• Length, -- 26,000 btu/hr.; Price -- 813.95. incl. valve -- 14-1/4"; Gas input -- 75,- 000 btu/hr. Price w/Valve & Ret. Note: Burners also supplied for kilns ozzle -- 837.50. w/Safety -- 867.00. firing from two sides. Johnson also makes a complete line of crucible furnaces for melting bronze, aluminum and other soft metals. Or, for metal bend- ing and forging, select Johnson forge furnaces. Johnson Since 1901 Gas Appliance Company Cedar Rapids, Iowa 52405 April 1974 3 The Handextruder opens the door to a new clay medium. Thousands of shapes previously impossible fo make are easy m tubes, bars, files, slabs m anything you can imagine. Our exclusive feature is the use of fired clay exfru. sion dies ~ just cut out a die with the steel cutter provided, and cut the shape you want to extrude from if. Handles can be as intricate as you want. Appliques, sculpture projects, coil pots, moldings, twists and braids, as fast as yon can fire new dies. The Handexfruder comes with tube die holder built in, construction is all steel with all pivot poinh" case hardened, ready to bolt to a table and use. An instruction ~ ~ booklet gives details of the most exciting clay tool since the wheel, l~,e~s u~estr, cl~l, Fa~r The Handexfrnder is only $7S.00 plus freigl~, and is available from I~uJcJJ~r~,~ 95448 major ceramic suppliers nationwide, or write ns for new literature. ~ 4~-~ 4 Ceramics Monthly Potter's Kick Wheels th~s is the popular (~)uagmire wheel with 10,000 satisfied cus- tomers. It features: a machined M O N T H LY steel flywheel, an adjustable seat, shelf and splashpan. A welded tubuar steel frame and painted Volume 22, Number 4 April 1974 finish. Flywheel we;cjhts are:m 76, 96 and 116 lb. Prices are:m $149, $159, $169 power unit Letters to the Editor ............................ 7 $50. Bat Pins $3, bats 13" $1.00, crating $6. Itinerary ......................................... 8 Answers to Questions ............................. 13 Suggestions from Our Readers .................... 17 Apprenticing by Raymond Bub .................... 18 Heavy Duty Les Lawrence .................................... 24 Clay Mixers New Jersey Craftsmen: An Invitational Exhibition ___26 these units will mix wet scrap or powder to a ~hrow;ng state Summer Workshops 1974 .......................... 27 I HP S00 ]b./HR 7 Cu. Ft. $79S Fiber Glass and Clay by Robert Wood Anderson .... 33 2 HP 700 Ib./HR 9 Cu. Ft. $99S 3 HP 800 Ib./HR 10 Cu Ft. $1100 Persian Ceramics by Elena Karina Canavier ........ 36 S HP 1000 Ib./HR 12 Cu.F. 1300 crating $20 freight collect Beads from Raku-Fired Egyptian Paste please specify voltage and phase. by Sylvia Hyman ............................ 39 Four-Three-Two-One Glazes by Richard Behrens .... 42 CeramAetivities .................................. 45 Propane & Natural New Books ....................................... 66 Gas Downdraft Index to Advertisers ............................. 66 Kilns reduction or oxydation to cone ON OUR COVER 10. 100% safety off. Low cost Paul A. Dresang, Minneapolis, Minne- operation. All propane units com- sota was given a merit award for "Fat plete except for tank. Standard Freddie Frog on a Dirt Bike," ce- toploaders are priced: $595, $695, ramic, 22 inches high, one of the $795, $895, $995, for 4, 6, 8, 10, entries in "Encounter with Artists 13/ and 12 cu. ft. front load 20% Minnesota Crafts '73," the 13th in a extra, nat. gas 20% extra. S;tters series of exhibitions featuring area pyros, timers electron;cs, shelves extra. Crating $20 per kiln. artists and craftsmen. reWrite for into on large natural gas units. Publisher and Acting Editor: SPENCER L. DAVIS High Fire Cone 9 Assistant Editors: WILLIAM C. HUNT FRANCES SAWYER Electric Kilns Feature Editor: BETTY HOLLOWAY these are well insulated high fire Art Director: ROBF.ART L. CREAGER kilns built to last. They feature a Circulation Manager: MARY RUSHLEY 22" height with 8 floor variations. Standard units are 4, 6, 8, 10, 12 Advertising Manager: CONNIE BELCHER c,,. ft. top loading. Front Ioacl 20% extra. Standard unit prices: $495, Advisers and Special Contributors: F. Carlton Ball, Richard $$95, $695, $795, $895. Crating Behrens, Kathe Berl, Edris Eckhardt, Zena Hoist, John Kenny, SIS per unit. Sitters, timers, pyros Karl Martz, Ken Smith, Helen Worrall, Don Wood. electronic controls extra. Please specify voltage and phase. West Coast Advertising Representative: Joseph Mervlsh Asso- ciates, 4721 Laurel Canyon, Suite 211, North Hollywood, DEALERSHIPS AVAILABLE California 91607. Telephone: TR 7-7556, Area Code 213. for more information about the above products Copyright 1974 Pro[essional Publications, Inc. and many others write to the address below or contact one of our many dealers . Orders Ceramics Monthly April 1974. Vol. 22 -- No. 4. Published monthly can be placed on our automatic night line . except July and August by Professional Publications, Inc. -- S. L. Davis, Pres., P. S. Emery, Sec.; at 1609 Northwest Blvd., Columbus, Ohio 43212. all prices are fob our factory . AIIduties Correspondence concerning subscriptions, renewals, and change of address should be addressed to the Circulation Department, Ceramics Monthly, are included in the price of the goods . Box 4548, Columbus, Ohio 43212. Second Glass postage l~id at Athens, Ohio, U.S.A. Subscriptions: one year $6; Two years $10; Three years $14. Copyright 1974. All rights r~erved. The articles in each issue of Ceramics Monthly are indexed in the Art ESTRIN MANUFACTURING LIMITED Index and the Readers' Guide to Periodical Literature. Microfilm copies are available to suhscxibers from University Microfilms, 800 N.