The Providence news. (Providence [R.I.]) 1891-1906, 1893-09-07
pIuYIdsnce Has The First Electric Els-
IltoR introduced In the State
NJ. Manton's Grain and Coal Elevator
Invension-An improvement In Circu-
lar Knitting Machines A Labor Saw
1ns Dyeing Machine--Brisf ItemA

vator which has recently been installed
In tie Conrad building by the Otis COM
pany Of Yonke-s. N. Y. 1t is the first
thing OF the kind In this state and CON-
prises some very ingenious mechanical
features. The mechanism which co meets
the electrical machinery with the drum Is
especially ingenious. being so arranged as
90 preclude any possibility Of the cur
rent passilg TO the drum aud thence up
the wire cablr into the car. There: are
two safety devicss to prevent any acci-
dent by the car running away, One
is controlled by a centrifugal governor
similar to those used on cam engine,
a3d the other consists simply OF pair OF
colla;s working on n screw. there being a
eh7ude on each collar, so that when the
CELLARS havs been driven certain distance
by the revolutions If the screw the shoul-
ders engage and the current Is thrown
on.
When the lever which controls the
current Is on the centre a very stiff br AXE
~ applied to device on the sbafting
with = sufficient power to prevent the
car moving In either direction. One OF
the most noticeable features Of the ma
chine is pair OF worm gears working in
gear with each other and at the same
time in gear with two worms. This ne
cessitates the use OF two worms on the
same line Of shafting, one right aud the
other q left hand.
TIE lamps in the car, apparently for
lighting purposes, have a use which is
one of the most novel features Of the en-
tire machine They are placed there for
nothing more or less than indicators to
show the man who Is RAINING the ele-
varor whether or not everything Is in
proper condition. When the ear Is NOV
ing in either direction the lamps are In
operation, but as soon as the lever 10 on
centre the lamps 90 out.
Should any of the wires become discon-
|nected. when the haud whee. in the car.
BY which the machine is controlled, was
turned The lights would not light. aud
the source of the trouble would become
|at once apparent.
The car was warranted by the builders
Ito lift 1900 pounds. but it has been tested
Ito nearly 1900 pounds and did not display
|any difficulty Ia raising the load. Tue Car
Twas warranted TO run at the rate of 300
feet per minute and exactly fulfilled the
|DpecI6cations. The drum 10 operated by
|a SO volt motor which receives its energy
from the wires Of the Narr aRausett Eiec-
SIC Aignung company.
Mr.. Sisnton's Invsntion.
Mr.. Joseph p. Manton Of this city has
|Iust added another to his long list OF in
Mentions. His latest is an endless chain
Elevator for raising coal. grain or sand,
pnd the special feature IL in the mode of
IMPLYING power to raise or lower the
Elevator to accommodate IL to the position
De the vessel unloading. as effected by the
|rise and fall of the tide aud different
evels Of the cargo as the unloading goes
Pr. The elevator consists of heavy side
plates and endless chains. with series of
buckets passing over pulleys on trans
Forso shafts at the bottom and top.
. The elevator is held between beams
which support tho engine operating the
thains of buckets. The connecting ar
fangements between the engine and The
Elevator proper for raising aud lowering
he latter consist Of two wire ropes. one
tnd Of each being attached to and wound
around two drums, and the other ends
bf the ropes are carried out. one on each
ide. over pulleys and down each side of
he elevator to the outer ends OF an
Pqualixing bar held In plates, to which
they are securely fastened.
When the drums are run back to let
he elevator down it is not always possi-
pie to stop them just when the elevator
|eets on ito lower end, and as the drums
urn little farther slack in the wire
fopes IL made. which. being stlff, causes
be coils on the drums to become loose
knd displaced. This trouble is said to be
Pbviated oy tightener, consisting Of a
Rectangular frame, held In an upright po-
A1<{<vx al IA "A Il
kuides secured to two vertical stanchious. |
placed one on each outer side of the two
wire ropes. 30 that the frame will come
bver the ropes on which two grooyed
bulleys rest. When any slack is male in
(ns ropes between the drums aud the
bulleys the frame slides down In i,s
uidss ana keeps the ropes tight on the
rums BY taking up the slack throug
hs pulleyA
4 knitting Machine Improvement.
Mr.. N. w. wsstcott of this city has re-
ontIy made an improvement in circular
Uniting machines, which those who have
een IL declare to be Of great value. The
INVENTION consists of the com bin alton
|ith the spring decides OF intermediate
earing bars. adapted to force the
lifches from the needles, and in the i'm
roved construction OF parts.
Upon the upright rod attached to The
ID piece of the machine Is placed n cam,
hioh serves TO raise the stitch clearing
an. the cam being firmly held upon the
pd by means Of set screw, and upon
be rod above the cam Is placed a loose
isk. provided with an annulsr fiapce
hich serves 70 support the inner ends
the stltch-clearing bars. the outer ends
which pass between the adjoining
oodlee.
The nsedles ara made in hook form. |
ID are frmly connected to the revolving
oad BY means Of clamping seQments
nd undsrcut nanRe. The cam is made
nth gradual rise, succeeding fall and |
radusl rise. and the clearing bars aud |
- stitches OF the fabric are held below
10 barbs OF the needles BY a cam
hich II adjustsbly supported by a
andard. and ia order to raise the outer
bds Of the stitch-clearing bars TO the
roper height for shedding the stitches.
y nose piece Of the cam raising the
Itch-o1saring bars Is made adjustable. |
~ A~1A a.