Sampson Moore and Co
This should be Sampson Moore and Co. (no comma) of North Foundry, Liverpool
1876 Three 60-ton overhead travelling cranes for the Gun Factory of the Royal Arsenal[1]. Some sources claim that these were the first electric overhead travelling cranes. This is nonsense. The cranes took their power from engine-driven square shafts running along the buildings' girders.
1886 Advert: 'PRELIMINARY. WHEATLEY KIRK, PRICE, and GOULTY are instructed by Sampson Moore and Co., the well-known Crane Makers, to SELL by PUBLIC AUCTION, at an Early Date, upon the Premises in Cotton street, Liverpool (owing the expiration the Lease thereof and the works in Great Howard street, the whole of the MACHINERY, PLANT, Loose TOOLS, and EFFECTS therein.'[2]
1886 Advertising sale of specified plant, equipment and effects at the Cotton Street and Great Howard Street works[3]
1886 Advert: 'MACHINERY.— For sale, 20-ton Overhead Power TRAVELLING CRANE, 10-ton Overhead Hand Travelling Crane. 18in. Screw-cutting Lathe, 25in. Break Lathe, Horizontal Planing and Boring Machine, Large Vertical Boring Machine, 5-ton Foundry Crane. 10in. Hand Lathe, Spring Blow Power Hammer, Plate-edge Planer, 12in. Bending Rolls, Cold Metal Saw, Lever Punching and Shearing Press, 5-ton Winch ; also a large number of first-class Wheel Patterns, &c.— Apply Sampson, Moore, and Co., 266, Great Howard street, Liverpool'.[4]