20595 GYRALITE

20595 Gyralite from L&N E6A No. 770 at the Kentucky Railway Museum

The following photos by:
Nicholas Shopa- Kentucky Railway Museum

Front view (note that both bulb rings have provisions for 4 clips to hold a "lens")

Front view with light "upside-down"

Left side view showing large finned line drop resistor for lamps and 2 smaller line drop resistors for
motor (field and armature)

Left side view (large finned lamp resistor, 2 smaller motor resistors, clip detail for Red lens mount)

Right side view showing relay and motor as well as linkage to bulb plate

Upper Right side view (motor and linkage)
The linkage is attached to an eccentric wheel at the gearbox. This mechanism has no belt
drive as does the 20585 mechanism.

Lower Right Side view showing block terminal for lamps and relay

Left Side view showing mounting at bottom and back of mechanism
Note the location of the tag on back

Tag reads: CAT NO. 20585 -ECJ
SER. NO. 412 VOLTS 32 DC
The "ECJ" suffix specifies:
E = Bottom-Standard C = Red-White Combination J = 74 volts (resistors built-in for 32-volt motor
and 30-volt 200-watt sealed beam lamp(s)

20595 Gyralite (modified) from BN F9A No. 1 at the Illinois Railway Museum

No. 1 Burlington Northern F9A with 20595 Gyralite in upper headlight opening (1997) The 20585 has diagonal hinges on the bulb rings. The 20595 has the hinges and latches on both bulb rings horizontal. The mounting of the lower bulb ring on the unit in the BN-1 (on which the Red lens is mounted) has been mounted horizontally in an improvised fashion. Based on the photos below, this light looks like it had an updated 20585 mechanism installed in it with the new can motor.
photo by: David L. Miller

crop of above

The following photos by:
James Kolanowski - Illinois Railway Museum

The light in the BN-1 consists of a 20595 outer support structure a 20585 mechanism. The 20595 did not use a belt drive as does the 20585. The linkage to the bulb plate will therefore not correspond with the patent drawings or spec. sheets.

Front exterior face of light in upper headlight opening

Close-up of above photo showing bulb plate detail
The Red glass lens was attached to the bulb ring by 4 clips (2 at top/2 at bottom).

Back of light unit with cover

Close-up of cover showing knob and tag

Cover removed showing mechanism The "U" shaped bracket which wraps around the sides and which is mounted
to the back support of the light is improvised for holding the 20585 Gyralite mechanism.

Right side of bottom showing the "Red" bulb bulb ring and latch as well as
method of securing latch to back of bulb plate
The 20585 bulb rings exhibit mounting clearance problems for the Red glass lens. The 20595 bulb ring has an increased length from hinge to latch. This accommodates the lens but makes the improvised horizontal mounting to the 20585 bulb plate necessary.

Left side at top showing back of "White" bulb, gearbox, pulley, V-belt, and
linkage from eccentric pulley

Right side at bottom showing back of "Red" bulb, wiring, and bulb ring latch
secured to back of bulb plate

Top of mechanism showing the new can motor (72/74 Volts), V-belt, and
linkage attachment to bulb plate

Original tag on back of mechanism

Close-up of original model tag:
Cat. No. 20595
Ser. No. 378
Volts: 30 DC