Surface Machinery and Methods for Oil-Well Pumping Page: 62A
BUREAU OF MINES
I a d"."T *
BULLETIN 224 PLATE XII
A. COUNTERBALANCE, a, ATTACHED TO WRIST PIN OF BAND-WHEEL
B. COUNTERBALANCE ATTACHED TO BEAM
Here’s what’s next.
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
George, H. C. Surface Machinery and Methods for Oil-Well Pumping, report, 1925; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc12407/m1/81/ocr/: accessed April 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.