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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 = '174') AND (category.subclass = '170') ORDER BY date ASC, patent, type

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 Specimen known 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 Specimen known 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 Specimen known 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 Specimen known 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 Specimen known 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 Specimen known 69,622 October 8, 1867 Improvement in Insulators for Telegraphs
Hook in blown glass cemented with sulfur in metal case
BROOKS, David
Hook  
U Specimen known 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 Specimen known 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 Specimen known 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 Specimen known 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 Specimen known 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 Specimen known 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 Specimen known 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
KYLE, William D.
Tree Insulator Line Material Co.

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