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PostPosted: 10 Jul 2012, 01:40 
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Joined: 10 Jul 2012, 00:47
Posts: 10
Location: Hunter Valley, Australia
Hello all.

I am the archive office & deputy mechanical branch manager of the Richmond Vale Railway Museum in the Hunter Valley, New South Wales, Australia. This group has ex New South Wales Government Railways Craven Bros. 70T breakdown crane 1073 in its collection along with 2 Industrial Works built construction steam cranes ex BHP Newcastle Steelworks.

I have special interest in the Craven crane 1073 & have been trying to track down some technical information on this crane (drawings, specifications, works photos etc). We do hold an extremely poor quality microfilm print (near illegible) of the general arrangement of this crane (& its twin 1072) Craven Bros drg No. 30022 "70 Ton Steam Breakdown Crane - Order No.12030 2 cranes". Unfortunately due to the breakup & corporatisation/ privatisation of the New South Wales Railways, access to any records that may have survived in N.S.W. is next to impossible. I was hoping that someone here could assist me if any records etc are possilbly available in the UK, either with Herbert Morris or an archive that the Craven Bros records may have been placed in.


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PostPosted: 10 Jul 2012, 13:56 
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Joined: 24 Dec 2010, 11:52
Posts: 132
Location: Queens Park, London
Craven Bros Crane Archives -

Leicester and Rutland Records Office have some Cravens material deposited by Morris.
Ref 28D69 106 series, partic. 106/4 - 106/13* , 119*, 120* and etc.


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PostPosted: 11 Jul 2012, 22:32 
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Joined: 10 Jul 2012, 00:47
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Location: Hunter Valley, Australia
Thanks for that Chris.

Here is a link to my Flikr set of some photos of 1073 especially the movement & reassembly of the crane. 1073 set

Also here are some technical specs I have been able to piece together so far for the crane.
Chassis Details
Wheel Arrangement: T-T-D-D-T
Length over fixed wheelbase: 11’-9 1/8”
Length over radial trucks: 22’-9”
Length over headstocks: 30’-7”
Length over buffers: 33’-7”
Brake gear: 2 x 13” dia vertical westinghouse air brake cylinders & WF3 triple valve

Lifting Capacity of Crane
Carriage blocked up
70 Tons at 21’0” radius
50 Tons at 25’0” radius
35 Tons at 30’0” radius
Crane free on rails
12 Tons at 21’0” radius
6 Tons at 25’0” radius

Ropes
Aux hoist: 3¼” circumference 110/110 Tons tensile strength, hemp cored
Main hoist: 5” circumference 110/110 Tons tensile strength, hemp cored
Derricking rope: 3½” circumference 110/110 Tons tensile strength, hemp cored

Maximum speeds (Steam powered)
Hoisting: main block 70 Tons 10’0” per minute
Hoisting: aux block 5 Tons 40’0” per minute
Slewing: 1 revolution in 1½ minutes
Travelling: crane light with match wagon on level about 4 miles per hour

Weight in Steam Powered Form
Total weight of crane complete in working order with coal and water: 116 Tons
Total weight of crane in travelling order with coal and water with jib on match truck: 105 Tons 15 Cwts
Water capacity: 255 gallons
Coal capacity: 1000 lbs

Steam Engine Details
Cylinder Details: 10½” dia x 14” stroke
Maximum Engine speed: 140 rpm
Valve gear: Walschaerts

Boiler Details
Boiler type: No.18 Squat ‘Spencer Hopwood patent’ vertical multi tubular
Boiler pressure: 120 psi
No. of tubes: 60 x 2¼” dia
Heating area: firebox - 64 sq. ft
tubes - 112 sq. ft
total - 176 sq. ft
grate area: 15.8 sq. ft

Diesel Engine & Transmission Details (Converted 1968)
Diesel engine: GM 671
No of cylinders: 6 in line
Type: 2 stroke, supercharged
Bore & Stroke: 4¼” x 5”
Reversing gearbox & torque convertor: Allison ‘Torqmatic’ model CRT-5631
Final drive: N.S.W. Department of Railways Design
Fuel capacity: 108 gallons
Water capacity: 17 gallons


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PostPosted: 16 Jul 2012, 07:24 
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Joined: 10 Jul 2012, 00:47
Posts: 10
Location: Hunter Valley, Australia
Found these rather nice closeups of 1073 whilst carrying out some lifting work during building extensions at Clyde Engineering in 1941 on the Powerhouse Museum's website.

http://www.powerhousemuseum.com/collect ... es=&c=&s=1
http://www.powerhousemuseum.com/collect ... es=&c=&s=1
http://www.powerhousemuseum.com/collect ... es=&c=&s=1
http://www.powerhousemuseum.com/collect ... es=&c=&s=1


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