'<5^ J^PQGS WAV 203 



James Swinging Steel Crane 



The James swinging steel crane is the most satisfactory method of supporting the 

 track outside the barn. It leaves the yard entirely clear, there being no supporting posts 

 to mterfere with the use of the yard, or to cause mjury to horses or cattle; nor is there 

 any lumber to rot and break. It keeps the yard next to the barn free from manure, 

 because when not convenient to dump on to spreader or wagon, carrier can be dumped 

 on an emergency pile some distance from the barn. 



The carrier track can be extended beyond the swinging crane, if desired, by the use 

 of the steel arch support shown on pages 205 and 206, or a wood support. 



The carrier will pass over the flexible track section readily, even when the crane is 

 swung as much as 30 or 35 degrees to either side from the direct line of carrier track 

 leading to crane; and hence make possible a dumping area eight or ten times greater 

 than the post supported track of the same length, should it be necessary to allow manure 

 to accumulate. 



When necessary to drive close to the barn with a load of hay, the crane may be 

 swung against the side of the building either to the right or to the left where it is out of 

 the way. 



The length of crane that may be used, if suspended from the barn itself, is dependent 

 on the height of the building. It should usually not exceed two and a half times the 

 distance from the top of the door to the point where the eye bolt holding the supporting 

 cable IS attached. 



For instance, if the distance from the top of the door to the plate on which the rafters 

 rest and which holds the eye-bolt is 14 feet, the crane should not exceed 35 feet; if this 

 distance is 1 6 feet, a 40-ft. crane may be used, etc. In but very few cases would we 

 recommend a crane over 40 feet in length. 



By erecting the proper supports, it is usually possible to secure the advantage of the 

 swinging crane, even though the building be low or other conditions apparently prevent. 

 An example is shown on page 204. If you want to use a crane and do not know how to 

 support it on your barn, write us and our Service Department will be glad to help you 

 solve the problem. 



The track inside the barn and the track supported from the crane are connected by the 

 removable flexible section shown on page 202. 



SPECIFICATIONS 



Carrier cranes being subject to considerable shock, unusual care has been taken to 

 give the James crane great rigidity to prevent buckling. The lateral and vertical strength 

 is furnished by the horizontal and vertical trussed stiffening struts set at frequent intervals. 

 The crane is designed to carry 800 pounds when the load is at the maximum radius of 

 40 feet. 



Galvanized pipe (not merely painted), 2%-in. O. D., connected by heavy malleable 

 splice clamps; truss braces of 1 5/g-in. O. D. pipe. Truss struts of 1 ^-a-m. O. D. pipe placed 

 120 degrees to each other. Three side truss cables ■']c,-in. in diameter with '/2-in. turn- 

 buckles; size and number of guy cables vary according to length of crane; with the 

 40-ft. crane four y^g^"'". and one % in. cables are furnished, with necessary cable clips 

 and clamps. 



The hinge is of best malleable iron with 1 -in. diameter steel bolt. 



Hook bolt, I inch thick, with iron washer, special design, to prevent cables from 

 unhooking, for attaching upper end of guy cables to barn. 



Removable Flexible Track Section 



Each swinging crane is furnished with a section of flexible track which is located 

 directly under the crane hinge. The flexible track is built up from 1 4 pieces of tempered 

 flat spring steel set on edge, carefully machined and assembled. All internal parts thor- 

 oughly coated with flake graphite and oil. 



This flexible track is eccentrically hung from crane hinge thus avoiding buckling. 



