Theatre Design & Technology - Dec 1972 - 32

11. THREADED ARM ADJUSTING ROD ASSEMBLY
(1) req'd.
(1) 16" x 5/8" diameter threaded iron bar stock
(4) 5/8" hex nuts
(2) 5/8" sq. nuts (one side of these with radius as
shown preferred)
12. HIGH SPEED COUNTERSHAFT ASSEMBLY (1)
req'd.
(1) 8" x 3/4" diameter cold rolled round bar stock
(2) 3/4" bore thrust collars, Browning .:¢SC-3/4 or
equivalent
13. LEFT SUPPORT FRAME ASSEMBLY (1) req'd.
(1) 2" x 2" x 1/8" x 20" angle iron
(1) 3" x 3" x 1/8" flat iron
14. MOTOR (1) req'd.
(1) % to 1 HP @ 1800 RPM reversible (see Text)
15. 25" "V" BELT (1) req'd.
Note: This was size used on the prototype and is
given by way of example only. The actual dimension
will vary considerably with the type of motor and the
way it happens to be mounted.
16. 5Y2" DIAMETER SINGLE GROOVE "V" PULLEY
3/4" BORE (1) req'd.
Browning #AS54 used in prototype is excellent
pressed steel version but die cast version such as
Browning #AZ55 is probably adequate.
17. 50" "V" BELTS (2) req'd.
(2) Browning #3L500 "V" belts
18. LOWER SPINDLE STIFFENER (1) req'd.
(1) 1 'I." x 6%" x 'I." flat iron bar stock
(2) 5/8" hex nuts or suitable substitutes
19. THIRD ROLLER SPINDLE ASSEMBLY (1) req'd.
(1) 7-3/16" x 3/4" diameter cold rolled iron bar
stock
(1) y,' x 2Y,' diameter bar stock
(1) 4.00" pitch diameter spur gear 3/4" face; 12
pitch;
14%0 pressure angle.
Split taper bushing type recommended (see
Text)
Browning #NSS12H48 or equivalent
(1) 3/4" bore split taper bushing for above. Browning type H-3/4 or equivalent
(2) 3/4" bore thrust collar: Browning #SC-3/4 or
equivalent
20. SECOND ROLLER SPINDLE ASSEMBLY (1)
req'd.
(1) 7-3/4" x 3/4" diameter cold rolled iron bar stock
(1) %" x 2%" diameter bar stock
(1) 4.00" pitch diameter spur gear 3/4" face; 12
pitch;
14%0 pressure angle.
Split taper bushing type recommended (see
Text)
Browning #NSS 12H48.
(1) 3/4" bore spl it taper bush ing for above. Browning type H-3/4 or equivalent
(2) 3/4" bore thrust collar Browning #SC-3/4

32

c::::§IJ

21. FIRST ROLLER SPINDLE ASSEMBLY (1) req'd.
(1) 7-3/16" x 3/4" diameter cold rolled iron bar
stock
(1) %" x 2Y,' diameter bar stock
(1) 4.00" pitch diameter spur gear 3/4" face; 12
pitch;
14Y2° pressure angle.
Split taper bushing type recommended (see
Text)
Browning type #NSS12H48 or equivalent.
3/4" bore split taper bushing for above. Browning type H-3/4 or equivalent
(2) 3/4" bore thrust collar: Browning #SC-3/4 or
equivalent
STIFFENER RETAINER BOLT AND WASHER (1)
req'd.
(1) %-20 x 3/4" machine bolt
(1) 'I." flat washer
(1) 3/8" flat washer
UPPER SPINDLE STIFFENER (1) req'd.
(1) 1'I." x 6y(' x 'I." flat iron bar stock
(2) 5/8" hex nuts or suitable substitutes
2" DIAMETER 2 GROOVE "V" PULLEY (1)
req'd.
(1) 2" diameter (1.5" pitch diameter) 2 groove "V"
pulley 3/4" finished bore
(1) Browning 2AK20 or equivalent
Note: A less expensive substitute for this pulley would be to use (2) Iight duty single groove
sheaves such as Central Die Casting's #200A.
1'I." "V" PULLEY (1) req'd.
(1) 1'1." "V" pulley. Bore to be determined by
motor shaft.
3/4" BORE THRUST COLLARS
Itemized with associated assemblies.
(1)

22.

23.

24.

25.

26.

FOOTNOTES TO PARTS LIST
1Additional angle iron may be needed depending on the
mounting used.
21nexpensive die cast sheaves are available through local hardware and appliance repair stores.
3As an alternate to keying the sheave to the shaft (see Text)
split taper bushings similar to those specified for the gears are
available for sheaves. NOTE: These split-taper bushings cannot be
used with the finished bore pulley specified. The Browning
numbers for the split taper assembly are 2AK124H for the sheave
and H-3/4 for the bushing.
4S uitable roller chain and sprocket drives may be substituted,
however the presence of the necessary lubricant, the poor gripping
surface presented, not to mention the increased safety hazard of
the teeth and roller links preclude the use of the 12" pulley as a
hand wheel.
5E ffective pitch diameter will vary from 1.46" to 1.80" depending on belt size with consequent variation in speed and
available torque with a Y, HP motor or less; the smaller pitch
diameter is advisable, i.e. use the recommended 3L500 belts.
6Browning also makes die cast single groove sheaves. Consult a
dealer for comparative prices.

THEATRE DESIGN AND TECHNOLOGY

DECEMBER. 1972



Table of Contents for the Digital Edition of Theatre Design & Technology - Dec 1972

Contents
Theatre Design & Technology - Dec 1972 - 1
Theatre Design & Technology - Dec 1972 - 2
Theatre Design & Technology - Dec 1972 - 3
Theatre Design & Technology - Dec 1972 - Contents
Theatre Design & Technology - Dec 1972 - 5
Theatre Design & Technology - Dec 1972 - 6
Theatre Design & Technology - Dec 1972 - 7
Theatre Design & Technology - Dec 1972 - 8
Theatre Design & Technology - Dec 1972 - 9
Theatre Design & Technology - Dec 1972 - 10
Theatre Design & Technology - Dec 1972 - 11
Theatre Design & Technology - Dec 1972 - 12
Theatre Design & Technology - Dec 1972 - 13
Theatre Design & Technology - Dec 1972 - 14
Theatre Design & Technology - Dec 1972 - 15
Theatre Design & Technology - Dec 1972 - 16
Theatre Design & Technology - Dec 1972 - 17
Theatre Design & Technology - Dec 1972 - 18
Theatre Design & Technology - Dec 1972 - 19
Theatre Design & Technology - Dec 1972 - 20
Theatre Design & Technology - Dec 1972 - 21
Theatre Design & Technology - Dec 1972 - 22
Theatre Design & Technology - Dec 1972 - 23
Theatre Design & Technology - Dec 1972 - 24
Theatre Design & Technology - Dec 1972 - 25
Theatre Design & Technology - Dec 1972 - 26
Theatre Design & Technology - Dec 1972 - 27
Theatre Design & Technology - Dec 1972 - 28
Theatre Design & Technology - Dec 1972 - 29
Theatre Design & Technology - Dec 1972 - 30
Theatre Design & Technology - Dec 1972 - 31
Theatre Design & Technology - Dec 1972 - 32
Theatre Design & Technology - Dec 1972 - 33
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Theatre Design & Technology - Dec 1972 - 40
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https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1972Oct
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1972May
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https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1971Dec
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https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1970Dec
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https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1970May
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1970Feb
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1969Dec
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1969Oct
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1969May
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1969Feb
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1968Dec
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1968Oct
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1968May
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1968Feb
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1967Dec
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1967Oct
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1967May
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1967Feb
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1966Dec
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1966Oct
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1966May
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1966Feb
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1965Dec
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1965Oct
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1965May
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