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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 = '175') ORDER BY date ASC, patent, type

Total of 129 patents found where: Class is '174'; Subclass is '175';

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T / S Patent Date Description Patentee Category Assigned To
 1848
U 5,889 October 31, 1848 Insulating Support for Telegraph Wires
Block (glass) with zigzag slit held by hooded bracket
LIVINGSTON, Laureston R.
ROGGEN, John J.
ADAMS, Calvin
Block  
 1866
U 53,201 March 13, 1866 Telegraph Insulator
Hook with glazed enamel at right angle to square pointed shank
WADDELL, William W.
Hook  
 1868
U 76,358 April 7, 1868 Improvement in Electric Telegraphs
Rubber in porcelain or glass shell; glazed shell; sharp drip edge; ears
VARLEY, Cromwell F.
Rubber  
 1869
U 94,037 August 24, 1869 Improvement in Insulators
Lightning rod insulator slotted for self-locking
SCOTT, Franklin
Lightning Rod Insulator  
U 97,392 November 30, 1869 Improvement in Insulator for Telegraph Wires
Self-tying slot top
GUSEMAN, W. D.
BRIGHT, E. C.
Self-tying Slot Top  
 1874
U 149,763 April 14, 1874 Improvement in Telegraph Insulators
Slotted block to hold wire held to pole with unique pin
LE BARON, Charles L.
Slotted  
U 154,258 August 18, 1874 Improvement in Telegraph Insulators
Slotted insulator to hold wire
LE BARON, Charles L.
Slotted  
U Specimen known 154,451 August 25, 1874 Improvement in Telegraph Insulators
CD 109.5 self-tying with three projections on top (similar to Harloe)
BROOKE, Homer
Insulator  
 1875
U 161,058 March 23, 1875 Improvement in Insulating Blocks for Telegraph Lines
Slotted block to hold several wires
PIDGEON, George S.
Slotted  
 1876
U 184,509 November 21, 1876 Improvement in Telegraph Insulators
Self-tying head with threaded end to screw into pole
CUNNINGHAM, Robert A.
CROWELL, David F.
Self-tying Miscellaneous  
 1883
U 281,452 July 17, 1883 Telegraph Insulator
Insulator with side bracket (see OBX March 1973, p. 43)
CHAPMAN, Thomas L.
Insulator  
 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 293,901 February 19, 1884 Lock Wire Insulator
Self-tying with slotted crown (Electrical World 10-18-1884)
MCGRORY, Thomas
Self-tying Miscellaneous  
U 303,399 August 12, 1884 Electric Wire Insulator
Slotted block insulator to hold wire with a tie
PRINCE, George W.
Slotted  
 1885
U Specimen known 316,812 April 28, 1885 Telegraph Insulator
CD 119, self-tying via projections (347,635 more appropriate)
O'BRIEN, John
Insulator William Brookfield
U 323,055 July 28, 1885 Insulator
Self-tying slot top with projections to bend wire
MCGRORY, Thomas
Self-tying Slot Top  
U 328,728 October 20, 1885 Insulator
Slotted tubular insulator for crossovers
SMITH, Leonard O.
Slotted  
 1886
U 336,276 February 16, 1886 Insulator for Telegraph Wires
miscellaneous - groove in crown for 2 or more wires of different size
WILSON, John
Miscellaneous  
U 342,320 May 25, 1886 Electric Circuit Wire Insulator
Self-tying
BLAKE, Edwin C.
TRIMNELL, Ernest C.
Self-tying Miscellaneous Blake & Trimnell and George Hunt
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 Specimen known 347,635 August 17, 1886 Telegraph Insulator
CD 119, self-tying with fingers (should use instead of 316,812)
O'BRIEN, John
Insulator William Brookfield
 1887
U 367,164 July 26, 1887 Insulator
Self-tying slot top
RUGER, Henry K.
Self-tying Slot Top  
 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 403,727 May 21, 1889 Insulator
Knob - self-tying
BERRANG, Jacob C.
Knob  
U 408,383 August 6, 1889 Line Wire Insulator
Self-tying with bail wire and slot top
GRAHAM, Carroll G.
Self-tying Miscellaneous  
 1890
U 422,651 March 4, 1890 Insulator
Cleat with split ends
STANLEY, George E.
Cleat  
U Specimen known 427,296 May 6, 1890 Insulator
CD 141.8 and CD 1037, self-tying with tapered pin hole & clamping flange
BUZBY, Joseph F.
Insulator  
 1891
U 463,955 November 24, 1891 Electric Wire Insulator
Self-tying with fingers
NEWELL, Hiram F.
Self-tying Miscellaneous  
 1892
U 469,940 March 1, 1892 Insulator
Knob - self-tying
HAMMOND, Charles N.
Knob  
U Specimen known 479,134 July 19, 1892 Insulator
Self-typing nail-knob with arm that secures the wire
CONOVER, Chauncey E.
Knob  
U 480,011 August 2, 1892 Insulator
Knob - self-tying
GREEN, John Jay
Knob The Security Insulator Co.
U 483,771 October 4, 1892 Insulator
Knob - self-tying Patent was owned by Pass & Seymour.
SEYMOUR, Albert P.
Knob  
 1893
U 511,611 December 26, 1893 Insulator
Cleat - self-tying
HAMMOND, Charles N.
Cleat The Hammond Cleat & Insulator Co.
U Specimen known 511,612 December 26, 1893 Insulator
Cleat - self-tying
HAMMOND, Charles N.
Cleat The Hammond Cleat & Insulator Co.
 1894
U 518,214 April 17, 1894 Ceiling Cleat
Cleat for ceiling - 2 piece
BALL, Henry Price
Cleat  
U 518,907 April 24, 1894 Cleat for Supporting Conducting Wires for Electric Circuits
Cleat (hanger)
WYMAN, Horace B.
Cleat 1/2 to Albert Goodwin
U 520,412 May 29, 1894 Insulator
Self-tying cylindrical cleat
CONOVER, Chauncy E.
Self-tying Miscellaneous  
U 522,302 July 3, 1894 Self-Locking Cleat for Electric Wires
Cleat - self-tying (shown on page 273 of 1897 Electric Appliance Co. catalog No. 12
NASHOLD, Elias
Cleat 2/5 to Henry Baskette
 1895
U 545,620 September 3, 1895 Cleat for Electric Wires
Self tying cleat known as the ""Eureka""
WOOD, Montraville M.
Cleat  
U 546,383 September 17, 1895 Insulator
Self-tying with crown hole, slot & spacer
GERSTENLAUER, Daniel M.
Self-tying Miscellaneous  
U 550,673 December 3, 1895 Crossover Insulator
Crossover knob
BERON, Frank G.
Crossover 1/2 to James Gaffney
U 551,032 December 10, 1895 Cleat for Electric Wiring
Cleat - self-tying
HEMPHILL, James R.
Cleat  
 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 587,614 August 3, 1897 Electric Wire Holder
Wireholder
STRAM, Charlie J.
Wireholder  
U 590,832 September 28, 1897 Insulator
Self-tying slot top
GRIMM, Fred B.
NESSLER, John H.
Self-tying Slot Top  
U 591,104 October 5, 1897 Insulator for Electric Wires
Cleat - self-tying
ROBERTS, Willis
Cleat  
U 593,689 November 16, 1897 Insulator
Cleat - self-tying with spiral grooves
REMBE, Louis F.
Cleat  
 1899
U Specimen known 621,661 March 21, 1899 Insulator
Cleat - self-tying (pivot-mounted) (found on U-184)
HARLOE, Morton
BLOES, Wilton S.
Cleat  
 1901
U 666,586 January 22, 1901 Insulator
Insulator & crossarm (glass) reinforced with embedded metal wires
WOOLBERT, Henry W.
Insulator  
 1902
U 707,429 August 19, 1902 Insulator for Electric Wires
CD 207.5; Self-tying twist lock type (see 952,279)
KING, Theodore F.
Self-tying Twist  
U Specimen known 715,375 December 9, 1902 Insulator
CD 109.7, CD 206.5 & U-184 self-tying via three alternate projections
HARLOE, Morton
Self-tying Miscellaneous  
 1903
U Specimen known 724,329 March 31, 1903 Insulator
Self-tying nail-knob with three flanges on top for tying wire around the knob and saw-toothed bottom edge to prevent the knob from turning.
POLK, Robert H.
Knob  
U 730,805 June 9, 1903 Insulator
Self-tying slot top
STROH, William G.
Self-tying Slot Top  
U 737,027 August 25, 1903 Insulator
Self-tying slot top (see Brown No. 1 p. 128)
RUTLEDGE, William G.
Self-tying Slot Top  
U 740,314 September 29, 1903 Insulator
Self-tying slot top
ROBERTSON, Charles B.
ROBERTSON, John J.
Self-tying Slot Top  
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
 1904
U 756,724 April 5, 1904 Insulator
Cleat - self-tying
SNODGRASS, John C.
Cleat  
U 757,765 April 19, 1904 Insulator
Cleat - self-tying
OSBORNE, John W.
Cleat  
U Specimen known 758,175 April 26, 1904 Insulator
CD 1038 tree hanger
CUTTER, Scott C.
Insulator  
U 775,986 November 29, 1904 Insulator
miscellaneous with flared skirt to hold paraffin
OAKMAN, Samuel
Miscellaneous Luther A. Wright
 1905
U 783,348 February 21, 1905 Insulator
Knob - self-tying
WRIGHT, Evans C.
Knob 1/2 to Francis McHenry
U 801,196 October 3, 1905 Self-Locking Insulator
Self-tying slot top
MATHIAS, Charles L.
Self-tying Slot Top 1/2 to Frank Kennedy
 1906
U 815,506 March 20, 1906 Insulator
Cleat - self-tying
BLYNT, Herbert S.
Cleat  
U 821,401 May 22, 1906 Insulator
Self-tying slot top
CARTER, Taylor
Self-tying Slot Top  
U 831,338 September 18, 1906 Insulator
Self-tying slot top
GLICK, Monroe J.
Self-tying Slot Top J. Rardin & T. Rardin
U 834,567 October 30, 1906 Insulator
Self-tying twist lock type
FALKENBERG, Richard A.
SIMON, Solomon S.
Self-tying Twist  
 1907
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 865,697 September 10, 1907 Insulator
Self-tying via side slot
HENDERSON, Robert E.
KING, John N.
Self-tying Miscellaneous 1/4 to Williams, 1/4 to James King
U 874,445 December 24, 1907 Insulator
Cleat - self-tying
SHEARS, Albert L.
Cleat  
 1908
U 878,949 February 11, 1908 Electric Wire Insulator
Crossover
HANSON, John H.
Crossover  
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 887,520 May 12, 1908 Insulator
Knob - self-tying
REHLING, John W.
Knob  
U Specimen known 888,616 May 26, 1908 Insulator
CD 109.7 self-tying with fingers
JOHNSON, Chauncey C.
Insulator 45/100 to John Watson
U 897,669 September 1, 1908 Insulator
Knob - self-tying
SIEGWART, Frank J.
Knob  
 1909
U 915,330 March 16, 1909 Insulator and Wire Clamp
Self-tying twist lock type
BLACKBURN, Jasper
Self-tying Twist  
U 927,321 July 6, 1909 Insulator
Wire grooves undercut to hold wire
BOND, John T.
Wire  
U Specimen known 929,878 August 3, 1909 Insulator
U-183
RANSON, Joseph W.
Insulator  
 1910
U 955,661 April 19, 1910 Insulator
Under crossarm type (see 1,694,415)
MOORE, William Enoch
Under Crossarm  
U 970,078 September 13, 1910 Insulator
Self-tying via side mounted device
MEURLING, John A.
Self-tying Miscellaneous  
U Specimen known 977,262 November 29, 1910 Insulating Hanger
Knob - self-tying
BIGHAM, Neal Jay
Knob Harry A. Robertson
 1911
U 986,702 March 14, 1911 Insulator
Self-tying slot top
FRIEND, David H.
Self-tying Slot Top  
 1912
U 1,016,780 February 6, 1912 Insulator
Dry-spot, screw cap design
RUTZKY, Paul
Dry-spot  
U 1,029,980 June 18, 1912 Insulator
Knob - self-tying (see reissue 13,748 on 6-16-1914)
ELLIS, John
Knob  
U 1,042,902 October 29, 1912 Insulator
Miscellaneous using Mason jar lid base attached to support
FOUTZ, Jeremiah N.
Miscellaneous  
 1913
U 1,059,629 April 22, 1913 Insulator
Self-tying twist lock type
PLATT, Thomas M.
Self-tying Twist  
U 1,071,419 August 26, 1913 Insulator
Self-tying miscellaneous slotted cube
HETHERINGTON, Bert
Self-tying Miscellaneous  
 1914
R 13,748 June 16, 1914 Insulator
Knob - self-tying (reissue of 1,029,980)
ELLIS, John
Knob  
U 1,109,058 September 1, 1914 Insulator
Self-tying slot top
FRITZ, Osville J.
Self-tying Slot Top  
 1915
U 1,149,017 August 3, 1915 Insulator
Self-tying via side slot
BALLIET, Ray
Self-tying Miscellaneous  
U 1,150,697 August 17, 1915 Insulator
Self-tying screw top
NEELY, Zen W.
LEWIS, George A.
Self-tying Screw Top  
U 1,151,179 August 24, 1915 Insulator
Self-tying slot top
HARRIS, Edwin D.
Self-tying Slot Top 1/2 to Arthur Mueller
 1916
U Specimen known 1,169,246 January 25, 1916 Insulator
Wire hanger [only 5 known]
FOLSTAD, Almer J.
Wire  
U 1,174,002 February 29, 1916 Insulator
Self-tying ""T"" top
ETTINGER, Victor P.
Self-tying Miscellaneous  
U 1,177,315 March 28, 1916 Insulator
Self-tying via side fingers
GEE, Warn George
Self-tying Miscellaneous 1/2 to W. A. Snapp
U 1,178,383 April 4, 1916 Insulator
Self-tying cylindrical insulator with slot for line wire and bracket that fits around the insulator to hold the wire in place
CASLOW, William H.
Self-tying Miscellaneous  
U 1,188,599 June 27, 1916 Self-Tying Insulator
Cleat - self-tying
YOUMANS, Salem L.
MCLAUGHLIN, James A.
Cleat  
U 1,200,294 October 3, 1916 Insulator
Self-tying slot top
AYRE, William G.
SHAW, Frederick L.
Self-tying Slot Top  
U 1,205,069 November 14, 1916 Insulator
Self-tying slot top
WILLIAMS, Roger A.
Self-tying Slot Top  
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 1,217,032 February 20, 1917 Insulator for Electric Wires
Self-tying twist lock type
LYON, Cody
Self-tying Twist  
U 1,230,521 June 19, 1917 Bracket
Tree insulator similar to the Cutter CD 1038 except with diagonal slot to secure wire, two holes for nails and two holes for tying to tree limbs
ROSS, George
Insulator  
U 1,234,313 July 24, 1917 Insulator
Self-tying
EFFRIG, Anthony F.
Self-tying Miscellaneous  
U Specimen known 1,251,416 December 25, 1917 Insulator
U-186 (improved)
PURKEY, Benjamin S.
U-186  
 1919
U 1,302,796 May 6, 1919 Insulator
Self-tying
HEARD, Thomas J.
Self-tying Miscellaneous  
 1921
U 1,371,855 March 15, 1921 Insulator
Self-tying slot top
BULLER, Henry W.
Self-tying Slot Top  
U 1,382,483 June 21, 1921 Electric Line Wire Insulator
Self-tying slot top with circular slot
DECKER, John G.
Self-tying Slot Top  
 1922
U 1,427,953 September 5, 1922 Attaching Device
Knob
HARRISON, Arthur W.
Knob Porcelain Appliance Corp.
U 1,429,369 September 19, 1922 Attaching Device
Knob
PARKER, William M.
Knob J. H. Parker & Son, Inc.
 1923
U 1,470,322 October 9, 1923 Wireless Tie Insulator
Self-tying via fingers
FREDERICK, Harry A.
Self-tying Miscellaneous  
 1924
U 1,492,496 April 29, 1924 Insulator and Transposition Device
Transposition insulator with internal channels to transpose the wires
VERNOR, Thomas A.
Transposition  
 1926
U Specimen known 1,595,653 August 10, 1926 Tree Insulator
Tree hanger - self-tying twist lock with lag screw
GAMMON, Thomas E.
AVERILL, Henry D.
Tree 1/2 to Line Material Co.
 1927
U Specimen known 1,620,804 March 15, 1927 Insulator
Tree insulator bracket for CD 1038 (see 1,721,657)
CUTTER, Scott C.
Insulator  
U Specimen known 1,640,815 August 30, 1927 Insulator
Knob - self-tying with side projections to crimp wire and hold it.
BROOKMAN, Horace D.
Knob  
 1928
U 1,684,312 September 11, 1928 Electrical Insulator
Self-tying slot top
FISCHER, John J.
PAYNE, Warren R.
Self-tying Slot Top  
 1929
U 1,718,259 June 25, 1929 Insulator
Cleat - self-tying
SCOTT, Arthur C.
RUPE, William G.
Cleat  
U Specimen known 1,721,657 July 23, 1929 Insulator
Tree insulator (porcelain) improved with ribs - strengthening (see 1,620,804)
CUTTER, Scott C.
Tree  
 1930
U 1,761,046 June 3, 1930 Transposition Device
Transposition ring for radio line
PFAUTZ, Christian E.
Transposition RCA
 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
 1936
U 2,043,754 June 9, 1936 Transposition Insulator
Transposition for radio line
JOHNSON, Edgar F.
Transposition  
 1938
D Specimen known 108,489 February 15, 1938 Design for an Electric Insulator
Standard Porcelain No. 57
DALTON, Rolland E.
Knob Porcelain Products, Inc.
U 2,138,571 November 29, 1938 Insulator
Transposition for telephone line
DEHMEL, Richard C.
Transposition Bell Telephone Laboratories, Inc.
 1940
U 2,219,727 October 29, 1940 Insulator Structure
Wireholder with multiple grooves and lag screw
STEWART, Lory B.
Wireholder 1/3 to Karl Thielscher
 1941
U Specimen known 2,266,340 December 16, 1941 Insulator
Self-tying twist lock type
SINDLINGER, Nevin Y.
Self-tying Twist  
 1943
U Specimen known 2,307,277 January 5, 1943 Wire Support
Knob - self-tying
KLINGEL, Edward L.
Knob  
U Specimen known 2,309,971 February 2, 1943 Drop Wire Support
Drop wire supporting clip
MCLARN, Ernest S.
Drop Wire Support International Standard Electric Corp.
 1948
U 2,442,165 May 25, 1948 Insulator
Odd under crossarm insulator with diagonal slot to insert wire into center slot and means to nail the insulator to the crossarm
GEROW, Kenneth Norris
Miscellaneous  
U Specimen known 2,444,938 July 13, 1948 Insulator
Radio antennae insulator with center hole for nail and side slits to hold the antennae wire
MARTIN, JR., Albert D.
Radio  

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