Thursday, Apr 21, 1938 The idea sketched below is to use power lift on tractor to angle disc harrow impart power to a towed implement. The bell crank A is pivoted at A &A' and operated by power lift at C & C'. On end of swinging draw bar bell crank F is pivoted at E. When power lift depresses A it acts to push down on D reguardless of position of harrow and angles harros by means of rod G. [Sketch: power lift] Witnessed:[Signatures: EA Bopf A D McLeary Theo Brown April 21, 1938 April 21, 1938 Notary Public

Creator

• Brown, Theophilus

Language

• English

Identifier

• 1938_1_115
• MS02.01.20.115

Keyword

• diary

Year

• 1938

Date created

• 1938-04-21

Related url

•  https://digital.wpi.edu/show/2n49t527m

Resource type

• Image

Source

• MS02.01.20.115.151

Last modified

• 2023-08-29