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Total of 52 patents found where: Class is '174'; Subclass is '170';

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T / S	Patent	Date	Description	Patentee	Category	Assigned To
		1849
U	6,779	October 9, 1849	Supporter for Telegraph Wires Hook encased in metal shell (also House-top insulator?)	LIVINGSTON, L. R. ROGGEN, J. J. ADAMS, Calvin KENDALL, Amos VAIL, Alfred	Hook
		1851
U	8,419	October 14, 1851	Insulator for Telegraph Wires Hook embedded in metal shell (with guta percha) for bolting	ROBBINS, Zenas C.	Hook
		1858
U	21,492	September 14, 1858	Improvement in Telegraph Insulators Hook covered with rubber to insert into crossarm or pole (see 124,199)	FARMER, Moses G. BATCHELDER, John M.	Hook
		1864
U	45,221	November 29, 1864	Improvement in Insulators for Telegraph Wires Hook cemented in glass with metal covering (see reissue 2,717 on 8-6-1867)	BROOKS, David	Hook
		1865
U	47,141	April 4, 1865	Improvement in Insulators for Telegraphs Bracket (wooden) with recessed bowl to hold ramshorn [Smithsonian]	VAN CHOATE, S. F.	Bracket
		1866
U	51,934	January 9, 1866	Improvement in Telegraph Insulators Hook with improved rubber cap and flared top	ELY, Alfred B.	Hook
U	52,761	February 20, 1866	Improvement in Telegraph Insulators Hook screwed into block of vulcanite	SMITH, William W.	Hook
U	53,201	March 13, 1866	Telegraph Insulator Hook with glazed enamel at right angle to square pointed shank	WADDELL, William W.	Hook
U	53,246	March 13, 1866	Improvement in Telegraph Insulators Hook insulator	SMITH, William W.	Hook
U	53,426	March 27, 1866	Improvement in Telegraph Insulators Hook covered with rubber attached to rubber hollow ball chamber	ELY, Alfred B.	Hook
U	53,427	March 27, 1866	Improvement in Telegraph Insulators Hook fitted with a disk of rubber	ELY, Alfred B.	Hook
U	56,542	July 24, 1866	Improvement in Insulators for Telegraphs Hook to be inserted directly into pole or crossarm	ELY, Alfred B.	Hook
U	58,594	October 9, 1866	Improvement in Telegraph Insulators Hook with metal shell fastened at right angle to pole	BURNAP, William H. BRASSINGTON, John D.	Hook
		1867
U	63,206	March 26, 1867	Improvement in Insulators for Telegraph Wires Hook encased in metal or wood allows arcing to ground	BROOKS, David	Hook
R	2,717	August 6, 1867	Improvement in Insulators for Telegraph Wires Hook cemented in glass & metal case with sulfur (reissue of 45,221)	BROOKS, David	Hook
U	69,622	October 8, 1867	Improvement in Insulators for Telegraphs Hook in blown glass cemented with sulfur in metal case	BROOKS, David	Hook
U	70,052	October 22, 1867	Improvement in Telegraph Insulators Hook in insulating material inserted into crossarm (references Wade insulator) [Smithsonian]	WAITE, John L.	Hook
		1868
U	75,365	March 10, 1868	Improvement in Insulators Hook and block inserted in a bracket	CASTLE, Alfred H.	Hook
U	79,951	July 14, 1868	Improvement in Insulators Hook, improvement on 75,365	CASTLE, A. H.	Hook
		1869
R	3,499	June 8, 1869	Improvement in Telegraph Insulators Cup under insulator (similar to oil insulator) to maintain dry surfaces (see 71,418)	SIMONDS, W. Edgar	Cup
U	97,318	November 30, 1869	Improvement in Telegraph Insulators Hook and conical metal covering for insulators on top of pole	SAFFORD, Alfred G.	Hook
		1870
U	103,122	May 17, 1870	Improvement in Insulators for Telegraphic Wire Hook with metallic oxide cement to hold hook or pin	BAKER, Robert B.	Hook
U	105,656	July 26, 1870	Improvement in Cramp Hook for Telegraphic Wire Insulators Hook with one prong opposite other (assigned to Brooks)	DECHANT, William H.	Hook	David Brooks
		1871
U	112,281	February 28, 1871	Improvement in Insulators for Telegraph Wires Hook, new shape	ROBBINS, Zenas C.	Hook
U	114,924	May 16, 1871	Improvement in Telegraph Insulators CD 158.1 with metal ring with fingers to hold wire	CHESTER, Stephen	Insulator
		1872
U	124,199	March 5, 1872	Improvement in Telegraph Insulators Hook in vulcanite with deep recess saturated with paraffin (see 21,492)	FARMER, Moses G.	Hook
U	126,038	April 23, 1872	Improvement in Fastening Telegraph Wires to Insulators Tie wire with insulated sheath or saddle to insulate it from conductor	DOREN, Dennis	Tie Wire
		1875
U	158,868	January 19, 1875	Improvement in Insulating Compounds Hook with composition compound of shellac, asbestos, coal tar & oak black	SMITH, Isaac	Hook	1/2 to George A. Chapman
		1878
U	200,124	February 12, 1878	Improvement in Telegraph Insulators Hook in glass held in crossarm by pin (Brooks & La Bastie)	BROOKS, David	Hook
		1882
U	258,061	May 16, 1882	Screw for Fastening Telegraph Wires Metal screw with self-tying end for holding a telegraph wire.	HAVILAND, Andrew J.	Screw
		1883
U	269,933	January 2, 1883	Insulator for the Suspension of Electrical Wire Conductors Hook insulator of ""gelatinized or vulcanized fiber""	HIGGS, Paget COURTENAY, William	Hook
		1884
U	293,242	February 12, 1884	Insulator for Electric Wires Hook with different shape and glazed to screw into pole or crossarm	HALE, Albert W.	Hook
U	294,384	March 4, 1884	Insulator for Electric Conductors Hook with metal glazed coated surface (improvement of 293,242)	HALE, Albert W.	Hook
U	301,446	July 1, 1884	Insulator for Electric Wires Hook with glazed covering (see 293,242 and 294,384)	HALE, Albert W.	Hook
U	306,718	October 21, 1884	Insulator Wooden block with wire projections for holding wire	CLARK, Eduard	Wood
U	306,719	October 21, 1884	Insulator Wooden block with wire projections for holding wire	CLARK, Eduard	Wood
		1886
U	352,436	November 9, 1886	Electric Insulator Strain type	WINTON, Henry D.	Strain
U	352,437	November 9, 1886	Electric Insulator Strain type	WINTON, Henry D.	Strain
		1889
U	396,847	January 29, 1889	Wire Hook Insulated hook with four prongs to wrap line wire around	ASHEN, Peter	Hook	Sylvester Y. L'Hommedieu & Co.
U	402,752	May 7, 1889	Insulator CD 289.9 (CD 1182), under crossarm type with triple petticoat	LOCKE, Fred M. LAPP, John	Insulator
		1890
U	441,849	December 2, 1890	Electric Line Hook Hook made of iron to secure line wire with threaded end to screw in crossarm	LOCKE, Fred M. LAPP, John	Hook	1/3 to Theodore Norton
		1896
U	573,101	December 15, 1896	Wall Insulator Slack wire ring driven into mortar between bricks	O'NEILL, James J.	Slack Wire
		1897
U	593,625	November 16, 1897	Insulated Hanger Hanger insulator of glass or porcelain encased in metal for arc lamps	WARNER, Ernest P.	Hanger	Western Electric Co.
		1901
U	679,308	July 30, 1901	Insulator Slack wire knob, bracket and suspension clip	GEISENHONER, Henry	Slack Wire	General Electric Co.
		1904
U	770,999	September 27, 1904	Wire Support Metal support shaped such that the conductor is pinched in the V-groove. The metal support fits inside a tubular insulator made of glass, porcelain or rubber that fits in a hole drilled in the crossarm.	BETTMANN, Charles Frederick ZAPP, John	Wire Support
		1906
U	823,820	June 19, 1906	Prong Insulator Ramshorn made of Electrose with lips and spout	STEINBERGER, Louis	Ramshorn
U	838,537	December 18, 1906	Cross Arm for Electrical Construction Steel crossarm with threaded pins on top and threaded holes underneath for hooks	HAMILTON, Evlyn S.	Crossarm
		1908
U	887,578	May 12, 1908	Hanger for Electric Wires Tree type - swinging	BEYER, David S.	Tree
U	904,592	November 24, 1908	Electrical Conductor Support Multipart insulator attached on top to a bracket and has hook pin screwed in pinhole to hang line wire below	ALLEN, John Scott	Multipart
		1912
U	1,032,153	July 9, 1912	Insulator Self-tying miscellaneous	NEMES, Mike	Self-tying Miscellaneous
		1926
U	1,594,207	July 27, 1926	Insulator Wireholder with lag screw and ring	KYLE, William D.	Wireholder	Line Material Co.
		1933
U	1,937,764	December 5, 1933	Insulator Self-tying tree insulator with mounting lag screw and convoluted metal wire clip cemented in the porcelain insulator designed such that the insulator is turned to allow the conductor to be dropped in the slot between the ends of the wire clip and then the insulator is turned 90 degrees to secure the condutor in the wire clip.	KYLE, William D.	Tree Insulator	Line Material Co.

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