The Salt Lake tribune. [volume] (Salt Lake City, Utah) 1890-current, 1910-01-30
Elevator Which Runs Without Gables

What! An eleator to run without
cables7 Yes, and invented In Salt
Lake by Salt Lake mechanic, And
| the operation Of an elevator without
cables is lust as practicable as is the
running Of street cars without cables
| 1t has been the object of mechanical
engineers for many years to produce a
passenger or freight elevator that shall
at once be economical of installation,
operation and maintenance, and abso-
| lutoly safe from danger of accident by
| reason of dropping down tho elevator
shaft through breakage in tho suspend
ing mechanism. II appears that the
problem has been successfully solved
by the firm Of Charles Newson e. Son,
machinsts of this city. The illustra
tions herewith arc explanatory:
Figure l." Mr.. Charles Newson ex-
planned, SHOWS the top of the travelling
worms which are engaged in the sta
tionary vertical racks. together with the
intermediate gears and the electric motor
which furnishes movement TO these trav-
cling worms,
Figure gives a front view OF the
uOlSN, as "el as showing now the car is
attached. There are two II beams at
the top and two at the bottom. spaced
and bolted apart, and between these top
and bottom II beams are cast frames
which are shaped and made TO house the
driving gear and the climbing screws or
worms. These screws are provided with
grooves cut In the under side of their
threads, and on top of the half-circle
threads OF the stationary vertical racks
are similar grooves in which those OF the
worms At, When the worms engage
the racks IL is absolutely impossible for
them 10 become separated. because of the
perfect interlockng device thus supplied,
This condition OF absolute safety exists
whether the lift be running or standing,
and Is one of the features which must
necessarily commend 1t to the attention
Of elevator owners and operators,
"On the under side of the motor frame
Is pair OF rocker arms. a one end Of
which is hanging rod which runs down
into the car and the turning Of which
engages the gear at the opposite end
with the motor mechanism. BY turning |
the large wheel in the roof of the car
the lift may be moved by hand by the |
operator. In case the power should go off |
when the car Is between floors. as is very |
often the case.
'In figure 8 the car hangs on A large, |
square link, cushioned by q heavy spring |
between the hoist and the car. There |
are also two safety chains which are idle |
as long as the main suspcnding link holds; |
but In case of breakage OF this the safety |
chains bear the weight of the car and |
prevent II from falling down the shaft
Below the cutoff lines of the car in figure |
3 is shown portions OF the racks and |
guides along which the revolving worms |
travel. with screw jacks at the base
for purposes OF adjustment TO a nicety |
that shall minimize the friction In ac-
ton. The climbing worms Will revolve |
on ball bearings where all OF the weight
will come, and the frames which carry
the gears Will be set in with rollers TO
work between the plates, The whole de-
vice is thus rendered self-adjusting to ac-
itself to any cramping or
in the lines Of the vertical
guides,
"Al lifting cables are done away with.
for their operation. The idea might very
properly be illustrated In the difference
the old cable car and the pres
cnt electric car. AT one time. we
all know, the cars were pulled along by
cables. There were hun
dreds Of tons OF these To be moved and
their movement required the expenditure
Of an immense power agency by the mo-
tive machinery at the central station. In
the present electric car the motor Is car
ried upon the vehicle itself, dispensing
with the ponderous cables and the waste
Of power necessary 10 give them motion.
II is precisely the same In this new eJe-
vator. The motive machinery Is In the
ut itself. all contained within the shaft.
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