OP-755 Part 2 Pages 197-401 - Personal Page of GENE SLOVER

353
cated as elevation on the dials. It is designed to receive
gun elevation orders electrically at 2 and 36 speed from the
controlling direc tor and from the pointer I s gun elevation order
transmitter ana to receive gun elevation order mechanically
at 2 and 36 speed -from pointer I s stations . Indicated by the
instrument as a zero reader at 2 speed, as follow-the-pointer
at 36 speed, and as a direct reader on a suitable scale at 2
and 36 speed is the relation of gun position to gun elevation
order on the first two dials and the actual elevation of the
J gun on the latter dial, corrected for erosion and roller path
compensation in each case. B-end response to the indica tor
is disproportionate to the elevation of the gun because of
the circular path of 'the upper end of the elevating screw and
is therefore corrected by a mechanism within the indica tor.
Provision is made for computing and indicating mechanically a
correction for difference in equivalent service rounds fired.
This correction is based on the quantities flsight angLen and
I!differ,encein veLoci.t.y i.Loss n and is set by knobs and indicated
on 'dials . Values of sight angle are set mechanically by
shafting from the sight setter I s indica tors. A mechanism is
also provided for introducing the proper correction for inclination
of roller path. Scales are provided to permit setting
the inclination of the r-o l Ler- path from zero to a maximumof
one degree and to permit setting the bearing of the
high point. A window providep a means by which this setting
may be checked. These correctionE) are all introduced between
gun response and thefollow-the-pointer dial and also before
the motion appears at a stub shaft for supplying ,these values
to a receiver regula tor. The speed of this total correction
is stepped up by means of an eLectr-Lc a.L follow-up with provision
for hand matching in case of failure of the follow-up.
GUNELEVATIONORDERTRANSMITTER, MARK2 ANDMARK2, MOD.1
47. The Gun Elevation Order Transmitters, Mark 2 right
,hand and Mark 2, Mod. 1 left hand are located at the poLnt.er t s
stations and function to transmit at 2 and 36 speed, for local
control,
described
gun elevation
in paragraph
order to the gun elevation indicators
46. The order is equal to the depression
of the pointer! s sight which, in turn equals sight angle
set plus selected value of level (director correction). Thus
the pointer's sight acts as a local director transmitting gun
eleva tion order to the gun layer! s gun elevation indica tor.
Switching arrangements are provided so that in auxiliary control
the local gun elevation order transmitter in turret 2
can transmit gun elevation order to turrets 1 and .3 as well.
TURRE TRAININDICATORANDTRANSMItTER,MARK37
48. The Turret Train Indicator and Transmitter ,Mark
37 is located at the turret train operator1s station in
each turret and functions to indicate the required angle of