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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 = '168') ORDER BY date ASC, patent, type

Total of 102 patents found where: Class is '174'; Subclass is '168';

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T / S Patent Date Description Patentee Category Assigned To
 1855
U Specimen known 13,162 July 3, 1855 Improvement in Attachments for Lighting Rods
Lightning rod insulator holder for glass insulator (Salamander)
DWYER, Robert D.
Lightning Rod Insulator  
 1859
U Specimen known 24,110 May 24, 1859 Improved Device for Securing Lightning Rods
Lightning rod insulator (glass) with spring clip to hold rod
ENGGREN, John A.
Lightning Rod Insulator  
 1867
U Specimen known 66,054 June 25, 1867 Improvement in Lightning Rod Insulators
Lightning rod insulator (glass) with tie wire to hold conductor
STEBBINS, Darius
Lightning Rod Insulator 1/2 to E. Morse
 1868
U Specimen known 75,815 March 24, 1868 Improvement in Insulators for Telegraphs
Earthenware insulator, cemented galvanized pin coated with paraffin (Brown p. 57)
VARLEY, Cromwell F.
Earthenware  
 1870
U 99,873 February 15, 1870 Improvement in Insulator for Telegraphs
Self-tying via cam devise to hold wire with cap covering
FINLEY, Stephen L.
Self-tying Miscellaneous 1/2 to Marshall Lefferts
 1879
U 217,427 July 8, 1879 Improvement in Telegraph Insulators
Self-tying screw top
TAYLOR, Burnley
Self-tying Screw Top  
 1883
U 274,821 March 27, 1883 Electric Wire Insulator
Self-tying miscellaneous
REIFF, William H.
Self-tying Miscellaneous 1/3 to Andrew Siep, Jr.
 1884
U 296,485 April 8, 1884 Means for Supporting and Insulating Electrical Wires
Wedge block for side of pole or driven in hole in crossarm
TRINGHAM, John Watson
Wedge  
U 307,916 November 11, 1884 Insulator
Blocks held by mortised metal tube to hold wire
CLEVELAND, John S.
KENT, George F.
Block  
U 310,059 December 30, 1884 Insulator
Metal plate to hold wire on side of insulator
JAMES, Hamilton L.
Metal  
 1886
U 340,734 April 27, 1886 Electric Wire Insulator
Tie wire embedded in insulator
SEABOLDT, Bert
Tie Wire 3/4 to George Goss, Samuel Gilson, Andrew Horner
U 346,971 August 10, 1886 Telegraph Insulator
Spout each end of groove for rain; barbed top groove; hole for tie wire
WILSON, John
Spout  
U 346,972 August 10, 1886 Telegraph Insulator
Self-tying via bolt in crown
WILSON, John
Self-tying Miscellaneous  
U 347,943 August 24, 1886 Insulator for Electric Wires
Self-tying with metal cam lever
LEONARDSON, John M.
Self-tying Miscellaneous  
U 349,022 September 14, 1886 Telegraph Wire and Insulator Fastening
Self-tying via a spiral of wire that fits in the top groove or notch holding the line wire within
WILSON, John
Self-tying Miscellaneous  
 1888
U 383,734 May 29, 1888 Insulator for Electrical Wires
Self-tying slot top & metal keeper
KEYES, Frank E.
Self-tying Slot Top  
 1889
U 406,041 July 2, 1889 Insulator for Electric Wires
Tie wire cast into insulator
GILL, James C.
Tie Wire Hemingray Glass Co.
 1891
U 445,969 February 10, 1891 Electric Insulator
Round insulator mounted on top of crossarm with two screws and surrounded with a rubber tube. Conductor is supported on top and secured with a metal clip.
BRANCH, James R.
Insulator  
U 448,956 March 24, 1891 Electric Insulator
Self-tying via metal band screwed on top
GRAHAM, George H.
GANNANE, Thomas
Self-tying Miscellaneous  
 1893
U 497,515 May 16, 1893 Insulator
Cleat with metal clip to hold wire
BRADY, Thomas H.
Cleat  
U Specimen known 504,059 August 29, 1893 Insulator
CD 141.6, bail type clamping lever to hold line wire
BLACKBURN, George W.
Insulator  
 1894
U 515,448 February 27, 1894 Fixing Electric Conducting Wires to Insulators Supporting Same
Self-tying via hole through insulator crown & metal clamp
SCHOMBURG, Rudolf
Self-tying Miscellaneous  
U 524,850 August 21, 1894 Insulator
Strain and hanger block
HAMMOND, Charles N.
Strain  
U 526,472 September 25, 1894 Insulator for Electric Conductors
Knob - self-tying
WEBSTER, George
Knob 1/2 to Arthur Ingraham & Samuel Brown
 1895
U 536,684 April 2, 1895 Self-Locking Cleat for Electric Wiring
Cleat - self-tying
CREAGER, Frank O.
Cleat  
U 539,040 May 14, 1895 Insulator
Cleat (ceiling) with metal clip (Electrical Engineer 1-30-1895 and 8-14-1895) It was referred to as the ""Simplest"" cleat and the Ideal cleat.
DESISLES, Leonard H.
Cleat 1/2 to Frederick Palmer
U Specimen known 545,819 September 3, 1895 Electric Insulator
CD 268, hole through crown for tie wire
ROTHENBERGER, Daniel M.
Insulator 2/3 to C. Inglis & E. Reilly
U 546,383 September 17, 1895 Insulator
Self-tying with crown hole, slot & spacer
GERSTENLAUER, Daniel M.
Self-tying Miscellaneous  
U 546,585 September 17, 1895 Insulator
Self-tying insulator (NOTI Insulator Co.)
DIBB, William
VICKERS, Albert
Self-tying Miscellaneous  
 1896
U 562,528 June 23, 1896 Wire Holder
Odd wireholder with two fins or ears that hold the wire
HAKANSSON, Louis M.
Wireholder  
 1897
U 574,828 January 5, 1897 Insulator
Hanger insulator for end of pole or other support
SMOCK, Benjamin D.
Hanger  
U 586,372 July 13, 1897 Insulator
Self-tying slot top with perpendicular hole for retainer
STEINBERG, JR., Henry W.
Self-tying Slot Top  
U 587,273 July 27, 1897 Insulator
Self-tying slot top with perpendicular hole for retainer. Also patents England: 16,087 (1-24-1896); Germany: 86,014 (4-25-1895)
RUDOLF, Heinrich
Self-tying Slot Top  
 1901
U 671,876 April 9, 1901 Self-Locking Insulator
Self-tying screw top
BEARDSLEY, Willard P.
Self-tying Screw Top  
 1902
U 700,570 May 20, 1902 Insulator Supporting Arm
Pin assembly for crossarm
SHARPE, John E.
Pin 1/2 to Newton Bartle
U 711,629 October 21, 1902 Insulator
Self-tying slot top with wedge keeper
HOBERT, Clayton
Self-tying Slot Top 7/10 to S. Miller & E. Kerper
 1903
U 728,442 May 19, 1903 Electric Insulator
Self-tying slot top with wedge keeper plug
BURKE, Edward J.
Self-tying Slot Top 1/2 to Cummings & Anderson
U Specimen known 744,631 November 17, 1903 Insulator
CD 139 combination safety and CD 181.5
SCHOENTHALER, Edward F.
Insulator 2/3 to W. Parker & J. Finn
U 746,671 December 15, 1903 Insulator
Self-tying via pivoted locking dogs
CARTER, Taylor
Self-tying Miscellaneous  
 1904
U 770,962 September 27, 1904 Insulator
Self-tying groove top and screw wire clamp
GILL, Jacob F.
Self-tying Miscellaneous  
 1905
U Specimen known 798,235 August 29, 1905 Insulator
CD 141.7
TWIGGS, William R.
Insulator  
 1906
U 821,401 May 22, 1906 Insulator
Self-tying slot top
CARTER, Taylor
Self-tying Slot Top  
 1907
U 843,258 February 5, 1907 Insulator Clamp
Clamp type metal cable holder
CLARK, Walter G.
Clamp Type The Clark Electric & Mfg. Co.
U 843,259 February 5, 1907 Insulator
Clamp type metal cable holder
CLARK, Walter G.
Clamp Type The Clark Electric & Mfg. Co.
U 844,796 February 19, 1907 Insulating Wire Holder
Self-tying via spiral slot
HATCHETT, Andrew
Self-tying Miscellaneous 1/3 to Battiste, 1/3 to Porter
U 849,896 April 9, 1907 Insulator
Knob with cam device to hold wire
GRIFFITH, Charles
Knob  
U 866,596 September 17, 1907 Insulator
Self-tying via cylindrical slot with screw threads
MORTON, William A.
Self-tying Miscellaneous  
U 872,216 November 26, 1907 Insulator
Self-tying with cam lever
BODLEY, Homer D.
Self-tying Miscellaneous  
 1908
U 879,068 February 11, 1908 Insulator for High Tension Currents
Odd electrose insulator with large hood over the top
STEINBERGER, Louis
Electrose  
U Specimen known 881,967 March 17, 1908 Electric Insulator
U-185
SLUSSER, Charles R.
Insulator  
U 884,142 April 7, 1908 Insulator
Cylindrical insulator with spiraling ribs to screw insulator into crossarm, center groove to hold line wire, external grooves to carry water away and drip points or serrations to allow water to drip down
FOREMAN, Ernest Jay
Crossarm  
U 887,107 May 12, 1908 Wire Fastener for Insulators
Wire fastener for crown wire groove of insulator
LOCKE, Fred M.
Wire  
U Specimen known 894,616 July 28, 1908 Insulator and Wire Clamp
U-401 and U-401A, insulator & wire clamp
FAY, John L.
Insulator  
U 900,917 October 13, 1908 Insulator
Self-tying miscellaneous
DOBSON, Grant
Self-tying Miscellaneous 1/2 to Richard Ohloff
U 907,834 December 29, 1908 Insulator
Slack wire holder with nail spike
MARSHALL, George B.
Slack Wire  
 1909
U 918,127 April 13, 1909 Insulator
miscellaneous - specially shaped crown slot to hold wire
CLARK, Walter G.
Miscellaneous  
U 922,477 May 25, 1909 Electric Line Insulator
Self-tying with side grooves
HENRY, Robert
Self-tying Miscellaneous  
U Specimen known 929,878 August 3, 1909 Insulator
U-183
RANSON, Joseph W.
Insulator  
U 931,507 August 17, 1909 Insulator for Electric Wires
Self-tying miscellaneous
SILER, Aaron V.
Self-tying Miscellaneous 1/2 to Andrew Siler
 1910
U 967,649 August 16, 1910 Means of Visibly Indicating Faulty Insulators
Colored flammable cap that fits over the top of an insulator that will burn away during an arc indicating that the insulator may be damaged
LINKE, Charles
Miscellaneous  
 1911
U 983,039 January 31, 1911 Insulator Protector
Protective shield
FIELD, John E.
Protective Shield  
U 1,009,810 November 28, 1911 Insulator
Self-tying top groove with metal clip
WATKINS, Thomas H.
Self-tying Miscellaneous  
 1912
U 1,020,880 March 19, 1912 Insulator
Self-tying screw top
BOURKE, Alexander M.
Self-tying Screw Top  
U 1,028,534 June 4, 1912 Insulator
Miscellaneous
BRADY, Charles C.
Miscellaneous  
U 1,032,153 July 9, 1912 Insulator
Self-tying miscellaneous
NEMES, Mike
Self-tying Miscellaneous  
U 1,035,415 August 13, 1912 Insulator
Self-tying miscellaneous
BROWN, Robert L.
BROWN, Gus
Self-tying Miscellaneous  
U 1,045,353 November 26, 1912 Insulator for Automatically Securing Conducting Wires
Self-tying miscellaneous non-pin type slot-top
ZACHHUBER, Franz
Self-tying Miscellaneous  
 1914
U 1,090,686 March 17, 1914 Insulator Clamp
Self-tying via clamp
COOK, William A.
Self-tying Miscellaneous  
U Specimen known 1,107,111 August 11, 1914 Insulator
U-186
PURKEY, Benjamin S.
Insulator  
U 1,116,631 November 10, 1914 Insulator
Self-tying slot top for slack wire use
SCHISLER, Frank J.
Self-tying Slot Top  
 1916
U 1,169,011 January 18, 1916 Insulator
Glass insulator with internal reinforcement for strength
COOK, Harry A.
Glass  
U 1,172,963 February 22, 1916 Insulator
Self-tying miscellaneous using odd projections on top and wire clamping device
ENGELHARDT, August J.
Self-tying Miscellaneous  
U 1,176,618 March 21, 1916 Insulator
Self-tying
SWEARINGEN, Walter E.
Self-tying Miscellaneous  
U 1,188,599 June 27, 1916 Self-Tying Insulator
Cleat - self-tying
YOUMANS, Salem L.
MCLAUGHLIN, James A.
Cleat  
U 1,206,846 December 5, 1916 Insulator
Hole in crown with mercury receiving ends of line wires & clamp
HOPKINS, Roy S.
Hole  
U 1,208,874 December 19, 1916 Insulator
Self-tying
WILSON, William E.
Self-tying Miscellaneous  
 1917
U 1,213,002 January 16, 1917 Insulator
Mine insulator
PIERCE, Frank C.
Mine  
U 1,221,893 April 10, 1917 Safety Repair Device for High Voltage Transmission Lines
Clamp to hold conductor to insulator while repairs are made
NEELEY, George S.
Clamp 1/2 to Thomas O. Moloney
U 1,241,929 October 2, 1917 Insulator
Self-tying slot top and clip
DADE, William A.
MORGAN, Richard E.
Self-tying Slot Top  
U Specimen known 1,249,820 December 11, 1917 Insulator
Composition insulator with side cable clamp
PHARO, Harry A.
SCHAAKE, William
Composition Westinghouse Electric & Mfg. Co.
 1918
U 1,260,160 March 19, 1918 Insulator
Self-tying
DISBENNET, Charles
Self-tying Miscellaneous  
 1919
U 1,291,139 January 14, 1919 Insulator
Self-tying slot top with keeper nail
REESE, Rudolph R.
Self-tying Slot Top  
U 1,292,451 January 28, 1919 Line Wire Insulator
miscellaneous
FORT, Louis
Miscellaneous  
 1920
U 1,361,948 December 14, 1920 Insulator
Pin with spring wire extending beyond edge of bottom pin hole
WIDMYER, James L.
Pin  
 1923
U 1,475,722 November 27, 1923 Insulator for Telephone and High Tension Conductors
Self-tying slot top and clip
ROMANDY, Joseph
Self-tying Slot Top  
 1924
U 1,509,645 September 23, 1924 Insulator
Self-tying
FOSS, Marvin J.
Self-tying Miscellaneous  
U 1,516,884 November 25, 1924 Wireless Tie Insulator
Self-tying via side fingers
FREDERICK, Harry A.
Self-tying Miscellaneous  
 1928
U 1,664,172 March 27, 1928 Insulator
Knob with metal hook to hold wire
HOLLER, John R.
Knob  
U 1,675,589 July 3, 1928 Insulator
Self-tying slot top via separate piece (similar to Ransom patent)
BABINEAU, Oliver D.
Self-tying Slot Top  
 1929
U Specimen known 1,703,853 February 26, 1929 Dry-Spot Insulator
CD 182, U-173, U-174 & U-175 dry-spot
GOULD, Rufus
Insulator 1/2 to Postal Telegraph Cable Co.
U 1,733,067 October 22, 1929 Insulator
Multipart with metal cap to prevent damage due to temp changes
MARVIN, Richard H.
Multipart The R. Thomas & Sons Co.
 1930
U Specimen known 1,755,971 April 22, 1930 Insulator
Neon, knob to support wires for neon sign (""spook"" insulator)
SMALLEY, Robert C.
Neon Claud Neon Lights, Inc.
 1931
U 1,829,354 October 27, 1931 Insulator
Self-tying clamp-top
HOUDE, Victor Frederick
Self-tying Miscellaneous 1/2 to Ferdinand La Fleche
 1937
U 2,092,515 September 7, 1937 Insulator
Circular line spacer for telephone wires composed of a disk with holes for each wire
JERVEY, William T.
Spacer Bell Telephone Laboratories, Inc.
 1939
U Specimen known 2,163,954 June 27, 1939 Electric Fence
Electric fence insulator with bail wire to hold the wire in place.
LUCAS, John A.
Electric Fence Prime Manufacturing Co.
 1940
U 2,198,839 April 30, 1940 Conductor Support
Little bracket with insulator crown to hold low voltage wire attached to a wood pole (see 2,022,386)
PITTMAN, Ralph R.
WALSH, Carroll H.
Miscellaneous  
 1942
U 2,304,204 December 8, 1942 Electrical Insulator
Rubber insulator for wire fence
RATZMAN, Borah B.
Rubber  
U Specimen known 2,305,688 December 22, 1942 Transposition Block
Transposition block (flat) for short wave radio antenna
GODDARD, DeWitt Rugg
Transposition Radio Corporation of America
 1944
U 2,361,109 October 24, 1944 Insulating Protector for Conducting Wires
Tree insulator to protect the wire
KENNEALLY, Martin M.
Tree The Porcelain Insulator Corp.
 1950
U 2,510,182 June 6, 1950 Wire Support
Guy strain with preformed attachment and line wire is brought in through the center and secured by wrapping around the external grooved ribs.
KLINGEL, Edward L.
Strain  
 1955
U 2,709,058 May 24, 1955 Insulator Support Rack
Secondary rack bracket with side tabs to receive screws or bolts.
VOSE, Fred C.
BURNIE, Glen
RUTH, Bernard W.
Bracket/secondary Rack General Electric Co.
 1957
U 2,816,155 December 10, 1957 Insulator Clamp
Tie wire replacement using a preformed adjustable sheet metal loop
BARNES, Robert I.
Tie Wire  

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