The Technical World Magazine, Volume 23Technical World Company, 1915 |
From inside the book
Results 1-5 of 56
Page 83
... inches across . QUARTZ CRYSTAL SUCH AS IS OB- TAINED IN THE CALIFORNIA MINES GEMS FROM CALIFORNIA MINES A replica of a gem mine has been built for the San Diego Exposition . ( Third Prize , Two Dollars ) SAFETY HOOD FOR. 83 333.
... inches across . QUARTZ CRYSTAL SUCH AS IS OB- TAINED IN THE CALIFORNIA MINES GEMS FROM CALIFORNIA MINES A replica of a gem mine has been built for the San Diego Exposition . ( Third Prize , Two Dollars ) SAFETY HOOD FOR. 83 333.
Page 88
... prizes of five dollars each ; and the five third best , prizes of two dollars each . Good photographs or well - executed drawings add to the value of your item and will increase its chances for a first prize . Items not winning prizes ...
... prizes of five dollars each ; and the five third best , prizes of two dollars each . Good photographs or well - executed drawings add to the value of your item and will increase its chances for a first prize . Items not winning prizes ...
Page 89
... Prize , Two Dollars ) SAFETY HOOD FOR BEVEL THE GEARS ' HE bevel gear has claimed the fingers of more mechanics than any shop device that neces- sarily possesses dan- gerous and rapidly moving parts . Experi- enced machinists are ...
... Prize , Two Dollars ) SAFETY HOOD FOR BEVEL THE GEARS ' HE bevel gear has claimed the fingers of more mechanics than any shop device that neces- sarily possesses dan- gerous and rapidly moving parts . Experi- enced machinists are ...
Page 90
... Prize , Five Dollars ) AIR WASHER AND COOLER FOR HOME WASHED air , either heated or cooled according to season , is pumped into the room equipped with a little water - motor device which has just been developed . The ma- chine is ...
... Prize , Five Dollars ) AIR WASHER AND COOLER FOR HOME WASHED air , either heated or cooled according to season , is pumped into the room equipped with a little water - motor device which has just been developed . The ma- chine is ...
Page 91
... Prize , Five Dollars ) HOLDS SASH WITH- OUT WEIGHTS HANGER John Countermine , Wichita , Kansas . INCREASING CAPACITY OF COATHANGER THE usefulness and ca- pacity of the ordinary wire coathanger may be greatly increased by the addi- tion ...
... Prize , Five Dollars ) HOLDS SASH WITH- OUT WEIGHTS HANGER John Countermine , Wichita , Kansas . INCREASING CAPACITY OF COATHANGER THE usefulness and ca- pacity of the ordinary wire coathanger may be greatly increased by the addi- tion ...
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