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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '65') AND (category.subclass = '305') ORDER BY date ASC, patent, type

Total of 15 patents found where: Class is '65'; Subclass is '305';

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T / S Patent Date Description Patentee Category Assigned To
 1854
U 11,515 August 15, 1854 Glass Mold
Mold and press to manufacture Lefferts ramshorn insulator		 BROOKE, William
 Hook  
 1864
U 42,143 March 29, 1864 Glass Pressing Machine
Glass press using steam piston to apply pressure		 MCKEE, Frederick
BALLINGER, Charles
 Press McKee and Brothers
 1874
U 151,352 May 26, 1874 Improvement in Machines for Molding Plastic Materials
Press and plunger to form threadless pinhole in glass		 BROOKE, Homer
 Press  
 1877
U 196,733 October 30, 1877 Improvement in Forming Female Screw Threads in Glass Jars, Insulators, & c.
Method of forming female threads inside the neck of jars and insulators		 WOODWARD, Theodore F.
 Threads  
 1879
U 215,516 May 20, 1879 Improvement in Devices for Attaching Plungers to Glass Presses
Means of attaching a plunger to a glass press using a chuck. (This is known as the ""Gill Chuck"" and may have been used in insulator production, it is not known if Gill was employed by Hemingray at the time of this patent.)		 GILL, James G.
 Plunger  
 1882
U 264,379 September 12, 1882 Mode of Making Glass Screw Caps
Mode of making glass screw caps for jars. Patent was used by the Cadiz Glass Co.		 WALLACE, William M.
 Jars 1/2 to Charles M. Rhodes
 1883
U 278,472 May 29, 1883 Manufacturing Glass Articles
Method of making a screw top for jars. Patent was used by the Cadiz Glass Co.		 WALLACE, William M.
 Press  
 1897
U 588,319 August 17, 1897 Molding Glass
Manual manipulation of molded glass object after removal from the mold		 BROOKE, Homer
 Manufacturer 3/8 to John C. Grout
 1905
U 790,715 May 23, 1905 Machinery for the Manufacture of Glass Insulators or Other Glass Articles
Hand operated press and mold for making glass bushings, etc. compensates for quantity of glass		 BROOKFIELD, Henry M.
 Press  
 1906
U 810,031 January 16, 1906 Press for Making Glass Articles
Press for making insulators and bottles		 BROOKFIELD, Henry M.
 Press  
U 820,404 May 15, 1906 Bottle Mold
Bottle mold		 DUFFIELD, Thomas C.
 Mold  
 1909
R 12,934 April 6, 1909 Die for Forming Insulators
Press die for forming insulators (reissue of patent 838,727)		 LOCKE, Fred M.
 Press  
 1923
U 1,449,808 March 27, 1923 Mold
Machine press to form the glass lid to a dish and the handle knob on top		 BOALS, Harry R.
 Manufacturing Corning Glass Works
 1937
U Specimen known 2,089,791 August 10, 1937 Method of Making Electrical Insulators
CD 240.2, method of making insulator described in 2,191,152		 HAMMEL, Victor F.
 Insulator  
 1964
U 3,148,047 September 8, 1964 Press-Molding Machine With Heat Flow Control
TV Faceplate molding machine		 TOROK, Julius J.
 OI Owens-Illinois Glass Co.

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