K & E / Keuffel & Esser 4012 Thacher Slide Rule / Calculator
(Last Model)
This #4012 Thatcher calculator / slide rule is
in super nice condition. The serial # is 6285 and this # can be found
on the original OAK mounting board near the top back edge. Near the
end of production K & E stopped using the typical mahogany
mounting board and outer box and began using oak for the last few hundred
before ending production.; This 4012 oak box & base variant is much harder to find than the
earlier mahogany versions. In addition to the K & E serial number
there is also a brass plaque on the base board indicating it was property of the US Navy at one
time. The inner scales on the drum are white and very nice. The scales on the outer frame are near perfect as well. They have hardly yellowed at all and there is no lifting of the paper scales or spotting to be seen. The instructions on the base are very nice as can be seen in the pics, . The oak box is nice noting a few scratches and some loses to the finish. There are no names, initials, or other carved into the box, base, or calculator.
The Thacher calculator has a near unique sliding drum design whose scales total over 30' long if laid out in a line. Edwin Thacher first patented the idea for this slide rule / calculator in 1881 in England. The idea was an immediate success with the scientific and engineering communities. K & E bought they rights to sell and manufacture the popular rule. Stanley initially produced them in England for K & E. and production was moved to the states near the turn of the century. The Thatcher calculator was first offered by K & E in their 1887 catalog as the 1740-N. In 1890 they dropped the N. In 1899 they changed the calculators catalog # to 4012 or 4013. The 4013 being the upgraded model w/ a built in magnifier. There were approx. 7000 total units made. The inventors name is Thacher, but it was misspelled Thatcher on almost all versions of the calculator that K & E offered, hence the use of two different spellings of Thatcher / Thacher in this ad and on the rule itself.
A nice piece that will display well and be a great addition to the old office or calculation related collection!! Enjoy.
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SR-4012N
Fine . . . . . $1295.00
To Order Email: patentedantiques@gmail.com
Heuer Game Master Stopwatch
This is a very nice example that has seen little use. I believe it dates
from the 1960s and it has sat unused for the last 40 - 50 or so years.
It comes with the original leather case, original instruction pamphlet, and
it has its original leather wrist strap
marked Heur. It works as it should. The original owner
was involved with car racing and automobile rallies a long time ago. I
also have a couple car rally booklets with mileage / time charts, "Floyd's
Factors, & Cur-TA-ble, by Williard Coddington", that would be used with a
Curta and stopwatch to manage rallies. (see last pics)
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STOPWTCH
Fine . . . . . $595.00
To Order Email: patentedantiques@gmail.com
Slide Rules
& Calculators
By Curta - Pickett - Sun Hemmi - Aristo & Others
Melcor
1000 Electronic Calculator This
calculator is NOS / never been used. It had an original Melcor Battery
in it that leaked a bit. I could not get it to light up with a new
battery or with the adapter seen.
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CALC-MELCOR-1000
Fine . . . . . $25.00
To Order Email: patentedantiques@gmail.com
6
NOS Sharp Compet Elsi-Mate Calculators These
calculators are NOS / never been used. Buy them all or individually.
Most work, one does not.
CALC-6SHARP
Fine . . . . . $195.00 / Lot
To Order Email: patentedantiques@gmail.com
Sharp
EL-8106 Calculator - NOS
NOS / never been used w/ original box and more. Fired right up with 3 AA
batteries installed.
CALC-SHARP-8106
Fine . . . . . $50.00
To Order Email: patentedantiques@gmail.com
Sharp
Elsi Mate EL-8018 Calculator - NOS
NOS / never been used. Fired right up w/ 2 AA
Batteries.
CALC-SHARP-8018
Fine . . . . . $40.00
To Order Email: patentedantiques@gmail.com
Sharp
Elsi Mate EL-8010 Slim Line Calculator
NOS / never been used. The small disc batteries
got left in too long and leaked. It looks like it can be cleaned, but
is untested.click for Pic click for Pic click for Pic click for Pic
CALC-SHARP-8010
Good . . . . . $20.00
To Order Email: patentedantiques@gmail.com
Sharp
Elsi Mate EL-8114 Calculator
NOS / never been used. Fired right up w/ 4 AA
Batteries. click for Pic click for Pic click for Pic click for Pic
CALC-SHARP-8114
Fine . . . . . $40.00
To Order Email: patentedantiques@gmail.com
Sharp
Compet Elsi Mate EL-5000 Electronic Calculator
NOS / never been used. Fired right up w/ 4 AA
Batteries or the adapter. The Sharp EL-5000 is a scientific calculator with 10 digits, precision and algebraic logic. It has 36 functions, 40 keys, and a VFD (vacuum fluorescent) display. The power source is 4 AA. The calculator was manufactured in Japan.
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CALC-SHARP-5000
Fine . . . . . $85.00
To Order Email: patentedantiques@gmail.com
Electric Motors / Dynamos / Fans / Steam Engines / Water
Motors
& Other Early Power Devices
Thomas Edison Mary-Ann Dynamo /
Electric Motor Model Wonderful representation. Clean, straight from the collection and ready for yours. Nice!!
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SE-MARYANN
Fine . . . . . $495.00
To Order Email: patentedantiques@gmail.com
Thomas Edison's
Edison System Ampere Meter This Edison System ampere meter is a rare
and important piece of Electrical history. The condition of this large and
unusual Edison amp meter is exceptional. The scale
reads up to 264 amps, off the scale, indicating this meter must have been
used with a
huge dynamo or motor.This Edison meter measures approx. 10" across and 16" tall. The back of the case is cast iron. The etched glass face is flawless. The previous owner made a copy of the paper scale to cover the original scale to help preserve it. The original paper scale is behind the copy on the face in the pics. It is in nice condition.
The wooden case is original finish and in fine condition. The interior workings look like new. The wooden case is stamped in two places with Elec. Eng. Dept. L.S.J.U. which is Stanford University in Palo Alto CA.
A super nice and rare piece of American Electrical History that will display well and be a great addition to the old office, electrical, scientific or related collection! Nice!!
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AMN-ED-METER
Fine . . . . . $4250.00
To Order Email: patentedantiques@gmail.com
Telegraph & Telephones & More
Electrical
World and Engineer Magazine January 18 1902
I have about 20 issues of this magazine in similar condition. The first
40 or so pages are all advertising. So are the last 10 - 15. The
middle discusses cutting edge developments in the emerging field of electricity
and engineering.There are ads for all sorts of rare things one could only wish to find. There are fans, motors, steam engines, light bulbs, arc lamps, telephone and telegraphy related ads, ads for tools and much more. The ads near the end mostly deal with larger things like steam engines, locomotives and large pieces of machinery and tools like milling machines, lathes and the like. Most all are in very nice condition noting the covers are very fragile and some are loose. The interiors on all are nice.
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SE-MAGS-EWE-2
Good + . . . . . . . $20.00 / Each
To Order Email: patentedantiques@gmail.com
Electrical
World and Engineer Magazine January 11 1902
I have about 20 issues of this magazine in similar condition. The first
40 or so pages are all advertising. So are the last 10 - 15. The
middle discusses cutting edge developments in the emerging field of electricity
and engineering.There are ads for all sorts of rare things one could only wish to find. There are fans, motors, steam engines, light bulbs, arc lamps, telephone and telegraphy related ads, ads for tools and much more. The ads near the end mostly deal with larger things like steam engines, locomotives and large pieces of machinery and tools like milling machines, lathes and the like. Most all are in very nice condition noting the covers are very fragile and some are loose. The interiors on all are nice.
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SE-MAGS-EWE-2
Good + . . . . . . . $20.00 / Each
To Order Email: patentedantiques@gmail.com
Crouse Hinds
500 Amp - 125 Volt Copper & Bronze Electric Knife Switch This
huge antique electrical knife switch is made of almost all copper & bronze save the
2 mounting posts at the rear of the switch and the Bakelite handle and attaching bar. All
told, with all seen on the table, there is over 70 lbs of copper in this
switch and attachment parts. At something over $2.00 / lb scrap
that comes to $150.00 or so in scrap. The large switch measures approx. 18" long from handle to back joint w/ vertical post. The last two of the 1" dia. by 1 1/2 long threaded rods are steel w/ bronze or copper uppers. Note the decorative knurling and cove on each of the upper bolsters. All of the other 8 contact rods are all copper, including the threaded rods and nuts as they carried electrical current. The smaller switch seen further back, 1 of 5, is described in the ad below.
This large electrical knife switch came off a large lighting control panel made of a marble slab that was disassembled. It dates from right around the turn of the century. 1900 that is. It can easily be remounted to a block of wood or other material to be displayed or be put back into service. The last 4 pics show that panel before it was taken apart. Perfect for the Frankenstein / Steampunk / Man-cave application. HUGE!!
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SE-BIG-SWITCH
Good . . . . . . . $250.00
To Order Email: patentedantiques@gmail.com
Crouse Hinds 100 Amp - 125 Volt Copper & Bronze Electric Knife Switch This antique knife switch is made of almost all copper & bronze save the Bakelite handle and attaching bar.
It weighs close to 5 lbs. The switch measures approx. 10" long from handle to back joint w/ vertical post. The last two of the 1/2" dia. by 1 1/2 long threaded rods are steel w/ bronze or copper uppers. Note the decorative knurling and cove on each of the upper bolsters. All of the other 4 contact rods are all copper, including the threaded rods and nuts as they carried electrical current.
This large electrical knife switch came off a large lighting control panel made of a marble slab that was disassembled. It dates from right around the turn of the century. 1900 that is. The condition is excellent. It can easily be mounted to a block of wood, marble, granite or other material to be displayed or be put back into service. Perfect for the Frankenstein / Steampunk / Mancave application. Nice!!
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SE-K-SWITCH
Good + . . . . . . . $125.00
To Order Email: patentedantiques@gmail.com
Zeitsinnapparat Scientific Psychological Recording Device by Spindler & Hoyer, Göttingen
It is a large and graphic instrument at
over 28" across.This unusual and large scientific apparatus was designed to measure & record optical and acoustic stimuli. There is an ID tag on one top arm with the manufacturers name Spindler & Hoyer, Göttingen. It dates from approx. 1900 and is German.
Descriptions online make this type if machine sound like a forerunner of the polygraph machine. Information also refers to its use in the study of time. There are numerous line drawings of similar devices using the word Zeitsinnapparat online that all lead to foreign or German sites. Here is a link to one of those German Scientific sites.
It is unclear how exactly it would work, but it seems it was meant to be driven by a motor and would be hooked up to a drum like recording machine similar to those used on steam indicators.
Very graphic, and an interesting and important part of the history of Psychological study. Nice!!
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TIDD-TIME
Good + . . . . . $595.00
To Order Email: patentedantiques@gmail.com
Thomas A. Edison Related
Southern California Edison Sign
Approx. 14" across the bottom. On Masonite. Nice!!
SE-EDSIGN
Good . . . . . . . $30.00
To Order Email: patentedantiques@gmail.com
Thomas A. Edison Sign / Banner Approx. 15" across the bottom. On Fabric. Same logo
as the sign above, but not marked other than the Edison name. It has a plastic or
saran wrap like covering on it of which most I removed. Nice!!
SE-EDSIGN-2
Good . . . . . . . $40.00
To Order Email: patentedantiques@gmail.com
Antique Appliances & Misc. Electric
Chase
"Bomb" 2 Cell Flashlight
This dates from the 30s or so. It turns on. The lens ring can be twisted
to act like a second switch? I think. Marked on back Pat Apld
For. Later versions have a patent date. Nice overall condition.Click for Pic Click for Pic Click for Pic Click for Pic
TX-BOMB-FL
Good + . . . . . $25.00
To Order Email: patentedantiques@gmail.com