Wednesday, September 20, 2017

We used to make things in this country: #270. Silhouette dishware



Silhouette made large etched aluminum plates and trays like the one above.  Can anyone provide us with any information on this Canadian firm?

Exploded B.M.C. "Mini" engine

Robert Ireson.  The Penguin Car Handbook, Revised Edition.  Penguin Books, 1967.

Hooke joints, more commonly known over here as universal joints, were first investigated systematically by Robert Hooke beginning in 1667, and given the name "universal joint" by him in a treatise he published in 1676.  That far back!  It's also known as a U-joint, Cardan joint or Spicer joint.  The Wikipedia entry is quite fascinating, albeit (at least to me) equally abstruse. 

Tuesday, September 19, 2017

Dayton Thorobred Cord tires, 1925


Sedan Delivery


Milling armature cores on a Becker milling machine

Howard Monroe Raymond.  Modern Shop Practice, Vol 3.
Chicago:  American Technical Society, 1902, 1919
That's a complicated jig!

Originally founded in 1899, Becker merged with Reed-Prentice in 1922.

We used to make things in this country. #269: Northern Pacific record player


A visitor sent me a photo of this lovely wooden-cased record player made by Northern Pacific.  The company may have been out of North Vancouver.  Can anyone shed any light on this firm?

Monday, September 18, 2017

Airplanes in formation, Mustang

Roger A Freeman; Mustang at War, Doubleday, 1974

See Chicago


Looks like a stained glass window.
The back cover to Seeing Great Chicago, 1929

The Rolleiflex: How a twin-lens reflex camera works



From Aaron Sussman.  The Amateur Photographer's Handbook.  Seventh Revised Edition.  
New York:  Thomas Y. Crowell Company, 1941, 1965, 1967.

Vanished skills: Installing a mortise lock, 1951



From Walter E. Durbahn.  Fundamentals of Carpentry.  Volume II.  Practical Construction.  
Chicago:  American Technical Society, 1951.