. Electric railway journal . f li g h tloads than heavyloads. Since cranesfor lifting heavyloads are slow-mov-ing, their use re-sults in a seriousloss of time if theyalso handle the lightloads. Thus a 20-ton crane, with ahoisting speed of 12ft. per minute perload will handle a 3-ton load at butslightly greaterspeed. But with the auxiliary hoist a light load of say 3 tons may behandled at a speed of from two to ten times that ofthe main crane. Very often the hook and block of the main crane to-gether weigh more than some loads frequently auxiliary hook and block being much lighter r
. Electric railway journal . f li g h tloads than heavyloads. Since cranesfor lifting heavyloads are slow-mov-ing, their use re-sults in a seriousloss of time if theyalso handle the lightloads. Thus a 20-ton crane, with ahoisting speed of 12ft. per minute perload will handle a 3-ton load at butslightly greaterspeed. But with the auxiliary hoist a light load of say 3 tons may behandled at a speed of from two to ten times that ofthe main crane. Very often the hook and block of the main crane to-gether weigh more than some loads frequently auxiliary hook and block being much lighter re-quire less power. The labor saving with the auxiliaryhoist is another important item, especially when a gangof men must wait for a small piece to be slowly movedby a large crane. By the application of this auxiliaryattachment any standard single hoist electric travelingcrane may be equipped with two lines for drop-bucketservice. The control may be arranged from cage, flooror pulpit to suit the crane to which it is AUXILIARY HOIST APPLIEDTO CRANE New Type of Solderless Connector THE accompanying illustrations show a new type ofsolderless connector for splicing small wire whichhas recently been placed on the market by Dossert &Company, New York. This is designated as type Dtwo-way connector and consists of male and femalethreaded parts acting upon a slotted tapered sleeve or TYPE D, NO. 8 CONNECTOR; TYPE D, NO. 14 CONNECTOR bushing, making the splice by compression. This con-nector is supplied in two sizes—No. 8 being for useon No. 8 and No. 9 wire and No. 14 being for use toconnect No. 10, No. 12 or No. 14 wire as desired. The illustrations show the actual sizes of the con-nectors as well as the details of their solid or stranded wire can be connected. April 12, 1919 Electric Railway Journal 745 Boring Machine for Journal BrassesMade from Old Axle Machine Used in Chicago Which Turns Out FourBrasses a Minute and Needs No Ex-perienced Labor to Ope
Size: 1290px × 1938px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
