Tows comprised of barges were lashed together by manila ropes called \"lines\" in the early days of towboating. These, with other modern improvements, have, in part, been replaced by chains or cables with ratchet pulling jacks for tightening or reducing \"slack\". Ratchet pulling jacks were originally designed for steamboat and river work in hitching tows, fastening rafts, floats, etc. However, they have been so improved that they are now being extensively used in building construction and shipbuilding for fastening and holding in place the skeleton steel framework, derricks, masts, forms, etc. In railroad work they have proven a valuable tool for wrecking crews. In quarries and coal mines for fastening either permanent or temporary guys.
The J. D. Ayers is a steel hull, sternwheel towboat. She was built by the Midland Barge Company in 1929 at Midland, Pennsylvania. Her dimensions are: 151 x 34.7 x 6 feet. She has 4 boilers of the return flue type. The condensing engines are 15's - 30's with a seven foot stroke; 750 horsepower. The paddle wheel is ... - 4\" in diameter by 23 feet long working 13 buckets with a ... -inch dip. The
The General Ashburn is a steel hull, sternwheel towboat built at Dubuque, Iowa in 1927 nby the dubuque Boat and Boiler Aworks. Her dimensions are :-130.l1x35.1x5.1 feet. She has a stoker fired coal burner and condensing engines, 15's by 30's, with a 6-1/2 foot stroke; 600 horse power. The Ashburn was originally owned and operated by the Inland Waterways Corporation of the Federal Barge Lines. The
The Kansas City is a twin-propellor, steel hull tow-boat, built in 1938 at Point Pleasant, West Virginia by the Marietta Manufacturing Company. Her dimensions are:- 148.4 x 40.1 x 8.1 feet. She has triple expansion condensing engines, 10-1/4 inches by 17 inches by 27 inches with [sic] and 18 inch stroke; 1,000 horse power at 225 r.p.m.; the propellors are 6 feet 5 inches in diameter. This boat is