St. Paul daily globe. [volume] (Saint Paul, Minn.) 1884-1896, 1895-03-02


men and assemblymen. Over 1000
personal invitations have been sent
out, and as this is the greatest crane
Gifts class in the world, there will be
great curiosity to see it, especially
in, view of the fact that it is manu-
Taetured by a home concern, Oliver
Crosby, president and engineer of
the American Hoist and Derrick
company, having designed it. Those
gentlemen receiving invitations to
today's test and exhibition will be re-
celved cordially by the manage
ment and served with light refresh
ments during the afternoon.
1t has taken fourteen months to
complete the crane, and during that
time forty men have been regularly
employed upon it. 1t weighs 200
tons, and has lifted it's weight of
forty tons, travelled along the track
while its load was suspended, as il
Illustrated in the ACCOMMODATING cut
AS soon as the exhibition is over the
crane will be taken apart and shipped
west. 1t will require ten flat cars
to transport it from st. Paul to
Mare island, and the freight be-
tween these points will alone amount
to $4,000. A crew of skilled workmen
will be sent from here to erect the
crane, common labor being obtained
at the navy yard.
This crane
IS THE LARGEST
one ever built in the world. and Oliver
Crosby, the designer, has received
many words of hearty congratulation.
not only from the department at Wash
1ngton, but from engineers all over the
country who have watched the pro-
gress of the crane with interest.
1t is universally acknowledged that
cranes of this class are the most diff
f1cult to construct from an engineers
point of view. Stationary cranes are
comparatively easy, and Locomotives
cranes travelling upon straight track
nave but few of the difficulties en-
countered in travelling crane which
must travel around a sharp curve.
Inc plans and designs have been sub
mitted by this company to the Bureau
of Yards and Docks, Washington. as
fast as made and have been approved
by them. Every piece of material
going into the crane has been inspected
by government inspector and has re-.
celved the official stamp. Regular in
spectionS have been made of the work
as it progressed by naval officers
Much opposition has been encountered
in the building of this crane. on ac-
count of Eastern firms who claimed
that it could not be built in st. Paul.
and even when the crane was par
tally finished an injunction was asked
Tor restraining the American Hoist
and Derrick Company from using GER
tain patented features. This injunc-
ton delayed the completion of the
crane about four months, but rather
than to contest the validity of GER
tam patents in court, the builders
modified their design which was an
proved by the Bureau of Yards and
Docks and bids fair to be much
SUPERIOR DEVICE
than originally contemplated.
The crane will be Immediately taken
apart and shipped to Vallejo, Cal.
At this point it will be loaded upon
transfer boat and taken to Mare
Island, distance across Mare Island
strait Of about two miles. 1t will
then be put together as it now stands.
tested again to its full capacity and
made to travel around the peculiar
shaped track made for it, which is in
the form of letter u This track
| runs on each side of the dry dock and
| the sharp bend occurs in travelling
around the head of the dock.
! Specif1cat tons furnished by the gov
| eminent:
| Working capacity of the crane, 10
| gross tons at radius of rs feet.
| Crane capable of performing the
operations of hosting, lowering, turn
! ing and travelling simultaneously or
independently without reversing or
| stopping the engine.
| Crane capable of travelling around a
curve of 66 feet radius, and arranged
by differential gearing, so that the
isspeed of the wheels on the outside rail
| automatically adjust themselves to the
| increased radius of the curvature over
the inner rail.
Travelling speed of the crane, 80 feet