Edwin Harrington, Son & Co.
Illustrated catalog given to Lamar Lyndon ca.1890.  The firm was located at North Fifteenth Street & Pennsylvania Avenue, Philadelphia, Pennsylvania.
Webpage copyright © George Langford 2010
Machine Tools, ca. 1890 illustrated catalog
DOUBLE BEAM TRAVELLING BRIDGE
Edwin Harrington Double Beam Travelling Bridge, page 124
OVERHEAD TRAMWAY.

On page 127 see cut of single track overhead rail (as page 129), showing SWITCH and TURN-TABLE in use. Also, on page 128 (below on this page) our method of transferring at right angles to any point along main track; on page 131, 132, traveller and hoist, as used on bottom flange of eye beam or plain rail of bar iron. With overhead track, hoist and geared traveller two men can handle a large casting much easier than six men the old way. We are also prepared to furnish a travelling bridge (page 124 - at lower left on this page) where railway is not desirable.

For prices of single beam geared travelling bridge and geared traveller at lower left, give span, length of run, height of room and capacity.

SINGLE BEAM GEARED TRAVELLING BRIDGE AND GEARED TRAVELLER
Edwin Harrington Single Beam Geared Travelling Bridge & Geared Traveller, page 125
TRANSFER SYSTEM OF OVERHEAD RAIL

Edwin Harrington Transfer System of Overhead Rail, page 128