Insulators Home > Trivia > Insulator Trivia Cards
The text of these insulator trivia cards was provided by Clint Gaylord. He purchased them on eBay; Rick Soller says "Insulator trivia cards were made by one of the children of Don Rienke from Colorado. They sold these at the Fresno, CA national." It is unconfirmed whether those are the same cards, though. Note that there may be a few inaccuracies in some of the information.
Q: What is the style number of Locke's largest insulator? (# 29, # 32 or #
51)
A: # 29
Q: Who did the Kimble name belong to?
A: The Owens-Illinois Co.
Q: In 1894, a patent was issued to the Jeffery Manufacturing Co. for a special
type of insulator. What type was it?
A: Mine insulator
Q: What 2 colors are most common in Locke glass insulators?
A: Light blue and green.
Q: What is the smallest (pin type) insulator known?
A: The Surge
Q: How many styles of Locke insulators have been found? (4, 8 or 13)
A: 13
Q: How tall is the largest Brookfield insulator? (8", 10" or 15")
A: 10"
Q: What was the Surge insulator used for?
A: Electric fences
Q: How were Electrical Conctruction & Maintenance Company insulators embossed?
A: E. C. & M. Co. S. F.
Q: What nickname is used for the CD 109?
A: Tear Drop Pony
Q: On May 22, 1894, Fred M. Locke received a patent for what insulator?
A: A one piece transposition.
Q: Fred M. Locke received a patent for a one piece transposition on what date?
A: May 22 1894
Q: There are 2 insulators nicknamed "Wade". What are their CD #'s?
A: 721 & 723
Q: Where was the McLaughlin Glass Co. located?
A: Vernon California
Q: Who received a patent for the spiral extension above the wire groove on
Oct. 8, 1907?
A: John C. Barclay
Q: How many years did California Electric Light Co. exist? (12, 22 or 32)
A: 22
Q: What does the E.D.R. embossing stand for?
A: Edmonton Dunvigan Railway
Q: On Dec. 19, 1871 a patent was issued regarding insulators. What was it for?
A: A proccess of forming glass insulators
Q: How many insulator patents were given to Frederick H. Withycombe on Sept.
19, 1889? (3, 4 or 5)
A: 4
Q: On June 17, 1890, who received the patent for the saddle groove?
A: Samuel Oakman
Q: Samuel Oakman received a patent on Nov. 13, 1883. What was it for?
A: The double petticoat
Q: Patent 48,906 issued in 1865 was for what insulator feature?
A: Threads
Q: Who invented an insulator design with many corrugated horizontal ridges
below the wire groove?
A: Mr. Foree Bain, of Chicago
Q: What CD# did Whitall-Tatum produce the most of?
A: CD 155
Q: Which is older, an insulator with a mold line over the dome or one without?
A: With a mold line
Q: What color is swirled in aqua to make it look green?
A: Amber
Q: What kind of insulator was inventedon Sept. 25, 1894?
A: Mine insulator
Q: How many different insulator companies made Denver glass insulators? (2,
3 or 4)
A: 3 (R. Good, W.F.G. & W.G.M.)
Q: What element was put into glass to make it clear, but eventually made it
turn purple?
A: Manganese
Q: What is a characteristic of the American Insulator Co.'s insulators?
A: Base embossing
Q: What is the name of the monthly publication about insulators?
A: Crown Jewels of the Wire
Q: Who was issued a patent on Aug. 19, 1890?
A: Samuel Oakman
Q: When referring to the color of an insulator, what does SCA stand for?
A: Sun Colored Amethyst
Q: What company made the CD 100 Surge?
A: Hemingray
Q: What company specialized in heavy units or street railway feeder cables
and such uses?
A: The Oakman Manufacturing Co.
Q: What manufacturer made insulators characterized by four sharp fins beneath
the wire groove?
A: Duquesne
Q: Which is the oldest . . .a 2 piece mold or a 3 piece mold?
A: 2 piece
Q: What company made "wedge" drip points?
A: Star
Q: What Louis A. Cauvet's first patent for?
A: The internal screw thread
Q: On a CD 147 what does the patent date refer to?
A: The spiral extension above the wire groove
Q: Who received a patent on Dec. 19, 1871?
A: Robert Hemingray
Q: Who purchased the Hemingray Glass Co.?
A: Ownes-Illinois Glass Co.
Q: The CD 723 with raised dots and lines has a special nickname, what is it?
A: Dot-Dash Wade
Q: What company used the embossing "H"?
A: Hemingray Glass Co.
Q: What insulator is nicknamed "Mad Hatter?
A: CD 134.6
Q: What is the nickname of the CD 1001?
A: Cutter
Q: Which 2 CDs make up the Montana Stacker?
A: 248 & 311
Q: The nickname of the CD 141 describes the top of the insulator, what is the
nickname?
A: Hot Crossed Buns
Q: What is the nickname of the CD 160.7?
A: Ice Cream Cone
Q: What is the CD with the nickname "Keg"?
A: CD 112
Q: What is the nickname of the CD 678?
A: T-Bar
Q: What symbol is used by the Dominion Glass Co.?
A: a diamond
Q: What is the nickname of the CD 140?
A: Jumbo
Q: What nickname is used for the CD 176?
A: Mushroom
Q: What threadless insulator was covered with wood to protect the glass?
A: The Wade, CD 721
Q: What is the nickname of the CD 260?
A: Roman Helmet
Q: What nickname is used for an old insulator with iron hooks?
A: Ramshorn
Q: What is the nickname of the CD 257?
A: Mickey Mouse
Q: What is the CD# of the insulator nicknamed the Muncie?
A: CD 303
Q: CD 102 is nicknamed what?
A: Pony
Q: What CD# is the "Coolie Hat"?
A: CD 304
Q: Who designed the CD 288?
A: R. D. Mershon
Q: The Brookfield Co. was located on which street between 1882-1890?
A: 45 Cliff Str.
Q: What is the nickname of the CD 181?
A: Pluto
Q: The Broofield Co. was located on 55 Fulton Str. during which years?
A: 1868-1882
Q: The Armstrong Co. was in business for how many years? (21, 31 or 41)
A: 31
Q: What are the 2 most common CD's with the nickname "Signal"?
A: 162 & 134
Q: The CD 263 is named for it's embossing, what is it called?
A: Columbia
Q: What is the nickname of the CD 269?
A: Eared Jumbo
Q: What year did E. C. & M. Co. start? (1865, 1871 or 1880)
A: 1871
Q: Where was the E. C. & M. Co. located?
A: San Fransisco, Ca.
Q: What year was Boston Bottle Works moved to 97 State Str.? (1870, 1877 or
1881)
A: 1877
Q: What is the nickname of the CD 182?
A: Dry Spot
Q: What is the nickname of the CD 152?
A: Hoop Skirt
Q: What are the 3 CD's nicknamed the "Egg"?
A: 700, 700.1 & 701
Q: In what year did Brookfield change it's name to Brookfield Glass Co.? (1880,
1882 or 1892)
A: 1882
Q: What city was the California Glass Insulator Co. located in?
A: Long Beach, Ca.
Q: What address is the National Glass Screw Co. listed at in 1885?
A: 65 Equitable Building
Q: What company bought Armstrong?
A: Kerr Glass Manufacturing Co.
Q: What year did Gayner Glass Co. start producuing insulators? (1910, 1920
or 1925)
A: 1920
Q: What year did California Glass Insulator Co. start production? (1900, 1906
or 1912)
A: 1912
Q: What company did William McLaughlin work for before starting his own company?
A: R. Good Jr.
Q: What year did Pyrex manufacture their first carnival glass insulator? (1920,
1928 or 1936)
A: 1928
Q: What company was located in Virginia?
A: Lynchburg
Q: What year did E.C.&M.Co. change it's name to California Electrical Works?
(1878, 1890 or 1910)
A: 1878
Q: What Boston company was located at 219 State Str. from 1890-1897?
A: Oakman Manufacturing Co.
Q: Where was the W.F.G. company located?
A: Valverde, Ca.
Q: Who succeeded James Brookfield and founded the insulator section of the
Brookfield Glass Company?
A: William Brookfield
Q: Which manufacturer was located in Vernon, Ca.?
A: McLaughlin
Q: What was the name of the "Hemingray Brothers & Company" changed
to in 1869?
A: Robert Hemingray & Company
Q: When did Bay State Glass Works sell Samuel Oakman's glassware? (1870-1871,
1878-1879 or 1882-1884)
A: 1878-1879
Q: Who was treasurer of the Oakman Manufacturing Co.?
A: Samuel Oakman
Q: What was the named changed to after Ralph Gray left the Hemingray Glass
Co.?
A: Hemingray Brothers & Co.
Q: What was the name of the Oakman Co. in 1892?
A: Oakman Glass Works.
Q: What CD is nicknamed the "Agee Bell"?
A: CD 490 (152.9)
Q: Who formed a partnership that started the Hemingray Glass Co.?
A: Ralph Gray & Robert Hemingray
Q: What CD is nicknamed the Liquid Insulator?
A; CD 180
Q: What CD is nicknamed the Beehive?
A: CD 145
Q: How many years did Hemingray produce glass? (55, 62 or 98)
A: 98
Q: What nickname is the CD 138.9 called?
A: Twin Pin
Q: What nickname is given the the no name CD 145 believed to have been manufactured
by WFG Co.?
A: Grand Canyon
Q: What is the nickname of the CD 185?
A: Mine Insulator
Q: In 1872 Samuel Oakman was an agent for what company?
A: Boston Bottle Works
Q: Which state was the first Hemingray plant located in?
A: Kentucky
Q: Which city were the offices of the New England Glass Manufacturing Co. located
in?
A: Boston
Q: The CD 244 comes in only one color, what is it?
A: Purple
Q: What company used the embossing "B.T.C."?
A: Bell Telephone Company
Q: What embossing is used by the Ohio Valley Glass Co.?
A: O.V.G. Co.
Q: What does the embossing M.&E. CO. stand for?
A: Mayor & Englund Company
Q: What does the embossing "W.G.M. Co." stand for?
A: Western Glass Manufacturing Company
Q: What embossing is used by the Transcontinental Railway?
A: T.C.R.
Q: What address did Brookfield move to in 1897?
A: 220 Broadway Str.
Q: What year did Western electric Co. buy California Electrical Works?
A: 1908
Q: Which Boston company started in 1899?
A: New England Glass Manufacturing Co.
Q: What city in New Jersey was the Kerr plant located?
A: Millville
Q: Who replaced George S. Ladd as president of E.C.&M. Co.?
A: Monroe Greenwood
Q: The Star Glass Works believed to be the manufacturer of Star insulators
was located in what city?
A: New Albany, Indiana
Q: What is the name of the company that in 1896 used the Valverde Glass Works?
A: R. Good Jr.
Q: Who did the Brookfields buy a bottle plant from?
A: Martin Kalbfleisch
Q: How many years was the Lynchburg Company in business?
A: 2
Q: After the Covington plant burned down, where did Hemingray build a new plant?
A: Muncie, Indiana
Q: What embossing stands for Crystal Crown Glass?
A: CCG
Q: The "N.E.G.m Co." embossing is used for which company?
A: New England Glass Manufacturing Co.
Q: Who formed a partnership known as the Whitall-Tatum Co.?
A: Israel Whitall & Edward Tatum
Q: What year was the California Glass Works destroyed by a flood?
A: Late 1915 or early 1916
Q: What was the address of the Brookfield Co. during 1890-1897?
A: 83 Fulton Str.
Q: Where was the Maydwell plant located?
A: West Glendale, California
Q: Which company had the trademark of WT in a triangle?
A: Whitall-Tatum
Q: What is the usual embossing on Locke insulators?
A: Fred M. Locke Victor N. Y.
Q: What yeard did the Owens-Illinois Glass Co. buy Hemingray?
A: 1933
Q: What city is the National Glass Screw Co. listed at in 1885?
A: Boston
Q: Which state was the Armstring plant located in?
A: New Jersey
Q: What was the address of the Hemingray plant in Covington?
A: The corner of Second and Madison
Q: What year was George S. Ladd replaced by Monroe Greenwood as president of
EC&M Co?
A: 1882
Q: Who was the superintendant of California Electrical Works from 1884-1889?
A: Paul Seiler
Q: What year was the "W" first dropped from the Brookfield embossing?
A: 1903
Q: What were Hemingray insulators embossed with after they were embossed "Patent
Dec. 19, 1871"?
A: "H" or "H.G. Co."
Q: What was the Armstrong company's full name?
A: Armstrong Cork Co.
Q: Who was the president of the McLaughlin Glass Co.?
A: William McLaughlin
Q: What is the nickname of the CD 741?
A: Washboard
Q: During which years was the Whitall Taum Co. in business?
A: 1920-1938
Q:Broofield was in business for how many years?
A: 54
Q: What year was Robert Hemingray & Co. changed to Hemingray Glass Co.?
A: 1874
Q: What was R. Good Jr.'s first name?
A: Robert
Q: What is the nickname of the CD 735.6?
A: Big Blue
Q: Baby Battleford is the nickname for which CD?
A: 724.5
Q: What is the nickname of the CD 788?
A: Slashtop
Q: What is a basic characteristic of the CD 288?
A: Three ridges on each side
Q: What is the CD of the "Doorknob"?
A: 175
Q: Who succeeded William Brookfield as president of the Brookfield Glass Co.?
A: Henry Morgan Brookfield
Q: What is the Cd of the "Stovepipe"
A: 739.2
Q: On a Hemingray insulator with the embossing "13-53 ::." what year
was it manufactured?
A: 1959
Q: What is the nickname of the CD 128.4?
A: Big Mouth
Q: What is the CD of the "Combination Safety"
A: 139
Q: The Maydwell plant was operated under what name?
A: Crystalite Products Corporation
Q: Richard Evans and James L. Foley were whose partners in 1869?
A: Robert Hemingray
Q: What company was started in 1923?
A: Lynchburg
Q: What Avenue was the Boston Bottle Works plant located on?
A: Mystic
Q: What CD is the "Baby Sigbal"?
A: 160
Q: What is the nickname of the CD 206?
A: Castle
Q: What was the address of Boston Bottle Works in 1872?
A: 49 Water Str.
Q: Where were Pyrex insulators produced?
A: Corning, N.Y.
Q: Who did California Electrical Works sell the company to?
A: Western Electric Company
Q: Where was the last Brookfield plant located?
A: Old Bridge, N.J.
Q: The Brookfields bought a bottle plant from Martin Kalbfleisch, what was
it called?
A: Bushwick Glass Works
Q: What year did the Brookfield Glass Co. go out of business?
A: 1922
Q: What year did Hemingray's Covington plant burn down?
A: 1900
Q: What is the CD 121's nickname?
A: Toll
Q: What was the patent on June 17, 1890 for?
A: The saddle groove
Q: What year did Ralph Gray leave the Hemingray organization?
A: 1863
Q: Where on an insulator are the drip points located?
A: On the base
Q: In what state was one of the largest finds of the CD 206 "Castle"
found?
A" Hawaii
Q: What does MLOD stand for?
A: Mold Line Over Dome
Q: The "CHI, INS. Co." embossing stands for what/
A: Chicago Insulator company
Q: What was the trademark on Armstrong insulators
A: An "A" within a circle
Q: How many years were the Maydwell insulators produced?
A: 5
Q: What company made insulators for Locke?
A: Brookfield
Q: Where is Kerr's main office?
A: Los Angeles, Ca.
Q: Lowex were experimental insulators produced by what company?
A: Hemingray
Q: What does "H.G. Co." stand for?
A: Hemingray Glass Company
Q: What were the ridges on a CD 288 designed to do?
A: To let water run over the crossarm
Q: Who did Hemingray make the Surge for?
A: Babson Brothers Co.
Q: Under what name did Hemingray introduce an improved insulator for medium
voltage distribution lines?
A: Kimble
Q: What company (besides Whitall Tatum) produced insulators under the Whitall
Tatum name?
A: Armstrong
Q: How many types of glass insulators bear the Kerr name?
A: 4
Q: What is the CD# of the "Corkscrew"?
A: 110.5
Q: About how many designs were made by the Hemingray Co.?
A: 80
Q: What company sold Samuel Oakmans glassware?
A: Bay State Glass Works
Q: Which CD did Lynchburg produce the most of?
A: 162
Q: What does the embossing E.C.&M. Co. S.F stand for?
A: Electrical Construction & Maintenance Company of San Francisco
Q: Who was issued a patent on July 25, 1865?
A: Louis A. Cauvet
Q: What company bought Louis cauvet's patent for threaded insulators?
A: Brookfield
Q: Which company was assigned Samuel Oakman's patent for a double petticoat
insulator?
A: The American Insulator Co.
Q: Which 2 men received a patent for drip points?
A: Ralph G. Hemingray & James C. Gill
Q: What does the embossing "C.G.I. Co." stand for?
A: California Glass Insulator Co.
Q: What does the embossing "W.U.T. Co." stand for?
A: Western Union Telegraph Company
Q: From 1939-1949 Armstrong made appx. how many million clear and flint glass
insulators?
A: 63
Q: What embossing does the South Massachusets Telegraph company use?
A: So. Mass. Tel. Co.
Q: What insulator employs both of the patents "Aug 19, 1890" &
"May 12, 1891"?
A: Samuel Oakman's "Columbia
Q: What are the 4 CD's with the nickname "Strain"?
A: 1030, 1038, 1040 & 1042
Q: Who founded the Brookfield Glass Co.?
A: James Brookfield
Q: Which years was the McLaughlin company in business?
A: 1920-1935
Q: Where was the Boston Bottle Works plant located?
A: Somerville, Mass.
Q: In what state was the Whitall Tatum plant located?
A: New Jersey?
Q: In what state was the Broopkfield Company located?
A: New York
Q: Where was the first glass plant that James Brookfield worked at?
A: Millville, N.J.
Q: What is the CD# of the "Tea Pot"
A: 790
Q: What street address did the Brookfield Company start at?
A: 55 Fulton
Q: The drip patent is what date?
A: May 2 1893
Q: What is the patent date for the spiral extension above the wire groove?
A: Oct. 8 1907
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