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Light Refactor(?)
Physical DescriptionObject has a black cast iron base that is a cylinder with a hollow center. The inside of the cylinder is lined with felt. A metal lid covers the hollow center and a circular glass lens sits in the center of the lid. The lid has…
4242 compensating polar planimeter
Physical Description: The Keuffel and Esser polar planimeter is composed of two individual pieces. One being the main body, and the other a tracer arm. Both sections are comprised of tarnished silver square rods with black markings indicating…
Weston D.C. Voltmeter, Model 45
Front face with lid opened:
Knobs: Toward the top of the box on the front face, there are 3 screw knobs (two on the left, one on the right). Each dial has a knurled surface, and when unscrewed, reveals a metal electrical lead. Above the knobs…
Knobs: Toward the top of the box on the front face, there are 3 screw knobs (two on the left, one on the right). Each dial has a knurled surface, and when unscrewed, reveals a metal electrical lead. Above the knobs…
Tags: Electricity, Measurement
Wang Laboratories Model 370 Programming Calculator
A rectangular shaped (304.4 Length X 165.1Width X 355.6 Height mm) device. This frame is made of metal that is painted everywhere except the stainless steel bottom. The front of the calculator contains a panel and display board. The panel holds 56…
Tags: 20C, Calculating, Computing, Engineering, Math, Science, Timecards, WANG, Wang 370
Pickett Model N600-ES Log Log Speed Rule
Physical Description:
The Pickett Model N600-ES Log Log slide rule is constructed using three yellow painted aluminum bars. The “ES” in the model name means “Eye-Saver” and refers to the yellow painted construction. The two outer bars are called the…
The Pickett Model N600-ES Log Log slide rule is constructed using three yellow painted aluminum bars. The “ES” in the model name means “Eye-Saver” and refers to the yellow painted construction. The two outer bars are called the…
Tags: 20C, 20th Century, Eckel, Engineering, Mathematics, Mechanical Engineering, Pickett, Scale, Slide, Slide Rule
Metallurgical Microscope
Physical Description: This microscope is very clearly labeled as a metallurgical microscope. The material of the microscope appears to be brass with a shiny black enamel finished over the body and brass accents on the eyepiece, body tube, and…
Newton Balance
The balance is contained in a cage of red-brown wood, atop a glossy black 20mm base made of either ceramic or stone, under which is larger red-brown colored base. Some scuff marks of normal wear and tear appear present on the front face as well as in…
Riehle Tensile Test Machine (2296 ALT)
Physical Description: This civil engineering instrument consists of a base, a ground stand, and a lowercase “r” shaped frame. The frame holds a scale arm with an English pound sliding weight. One end of the scale arm holds a bucket. Extending off the…
Assayer's Scale/Apothecary Balance
Physical Description: A rectangular oak case with glass panels stands on adjustable metal feet. The front page of the case is internally counterweighted to be lifted vertically by a metal handle. Inside the case is a brass beam balance with two…
Bico Hand Driven Centrifuge
Physical Description: This machine consists of an iron base and an aluminum bowl that is mounted on the base. The bowl consists of a stationary 11” diameter outer bowl and a 9.75” diameter inner bowl that rotates. The inner bowl has a circular…
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Crookes tube (X-ray generator)
Physical Description: The body of the Crookes tube instrument consists of a copper cube, in the center of a metal stand. The stand consists of a long…