Joseph Evans Reliable

Source

Joseph Evans & Sons, Pump Makers, Wolverhampton, England.

Catalogue"A" Steam & Air-Operated Pumps, July 1947 Edition issued to and obtained from the now closed Beckton Gas Works, North Thames Gas Board.

Description

This pump is a floor standing horizontal double acting pump. Drive from the steam cylinder to pump is through the kite and connecting rod arrangement using the flywheel mounted on a crankshaft for momentum. Reversing gear was optional, fitted to clear the pumping end of material that could solidify. The pumping end can also be steam jacketed to assist in pumping very viscous liquids such as tar. This type of pump became well known in gas works and also found very large application for high viscous pumping duties in tar distillation plants.

Construction

The steam cylinder is of cast iron construction with a steam D-type slide valve operated by an eccentric from the crankshaft. The steam piston is cast iron with spring rings. The piston rod is steel and cottered to the kite. The crankshaft is made of steel, carried on two adjustable bearings in the main frame. The flywheel is weighted to ensure smooth working.

The pumping end is cast iron, incorporating pump barrel and housing for piston valve. The piston valve is of a cylindered type operated by an eccentric on the crankshaft lubricated by the material being pumped. Reversing gear is optionally fitted. The cast iron bucket has cast iron rings and suction and delivery air vessels are provided. the piston rods are made of steel.

Range

There are a few versions of the reliable pump, the two versions that apply to the Gas Works and Tar Distillation industries are the 680 and 685.

  • 680 general duties such as water with spring operated disk valves.
  • 685 with reversing gear, optional steam jacketed pumping end, eccentric operated liquid piston valve and optional Pickering governor page 1, page 2.
  • 686 is the same as the 685, but suitable for thick liquids, which may contain obstructive matter.
  • 690 high lift applications, with outside-packaged ram type pumping end for gritty water (mines).
  • 692 for general pumping and steam engine duties simultaneously, or engine duties only.

The specification of the 680 and 685 versions are shown below.

680 General Duty 685 Reversing Jacketed
Size
SteamxPumpxStroke
Gallons / hour
(water)
Max Flywheel
Speed (R.P.M.)
Size
SteamxPumpxStroke
Gallons / hour
(water)
Max Flywheel
Speed (R.P.M.)
4"x2"x4" 570 105 4"x2"x4" 480 90
4"x3"x4" 1280 105 4"x3"x4" 1100 90
5"x3"x6" 1650 90 5"x3"x6" 1460 80
5"x4"x6" 2930 90 5"x4"x6" 2600 80
6"x3"x6" 1650 90 6"x3"x6" 1460 80
6"x4"x6" 2930 90 6"x4"x6" 2600 80
6"x4"x9" 3260 67 6"x4"x9" 2930 60
6"x5"x9" 5100 67 6"x5"x9" 4580 60
6"x6"x9" 7340 67 6"x6"x9" 6600 60
7"x4"x9" 3260 67 7"x4"x9" 2930 60
7"x5"x9" 5100 67 7"x5"x9" 4580 60
7"x6"x9" 7340 67 7"x6"x9" 6600 60
8"x4"x9" 3260 67 8"x4"x9" 2930 60
8"x5"x9" 5100 67 8"x5"x9" 4580 60
8"x6"x9" 7340 67 8"x6"x9" 6600 60
8"x6"x12" 7340 50 8"x6"x12" 6600 45
8"x7"x12" 8990 50 8"x7"x12" 8900 45
8"x8"x12" 13050 50 8"x8"x12" 11700 45
10"x6"x12" 7340 50 10"x6"x12" 6600 45
10"x7"x12" 9990 50 10"x7"x12" 8900 45
10"x8"x12" 13050 50 10"x8"x12" 11700 45
12"x6"x12" 7340 50 12"x6"x12" 6600 45
12"x7"x12" 9990 50 12"x7"x12" 8900 45
12"x8"x12" 13050 50 12"x8"x12" 11700 45
14"x8"x12" 13050 50 14"x8"x12" 11700 45
14"x9"x12" 16520 50 16"x8"x12" 11700 45
16"x8"x12" 13050 50 - - -
16"x9"x12" 16520 50 - - -

Collection

There are eleven Joseph Evans Reliable steam pumps in the collection.

  • Reliable horizontal 4x2x4, Type 685, No.24247, 1924, South Wales Gas Works
  • Reliable horizontal 4x2x4, Type 685, No.26900, 1929, Bedwas Coke Works
  • Reliable horizontal 4x2x4, Type 680, No.30934, 1938, Caerphilly Tar Plant
  • Reliable horizontal 4x3x4, Type 680, No.19435, 1916, Beckton Gas Works
  • Reliable horizontal 4x3x4, Type 680, No.31812, 1940, Beckton Gas Works
  • Weir Reliable horizontal 4x3x4, Type 680, No.322125, 1964, Beckton Gas Works
  • Reliable horizontal 4x3x4, Type 680, No.40308, (1953), Manvers Tar Plant
  • Reliable horizontal 4x3x4, Type 680, No.69724, 1962, Beckton Gas Works
  • Reliable horizontal 5x3x6, Type 685, No.19473, 1916, Llanbradach Coke Works
  • Reliable horizontal 5x4x6, Type 685, No.18949, 1914, Beckton Gas Works
  • Reliable horizontal 6x6x9, Type 685, No.37673, 1949, Pontypool Gas Works
  • (Reliable horizontal 8x5x9, Type 686, No.12011, 1905, Beckton Gas Works - now at the Museum of Power, Langford, Essex).

Reliable horizontal 4x2x4, Type 685, No.24247, 1924, South Wales Gas Works

4" steam cylinder, 2" pumping cylinder with 4" stroke and 24" diameter flywheel-double acting.

This pump was acquired in August 2004 from a scrap merchant who was supplying skips to the former Industrial & Maritime Museum in Cardiff Docks following their removal of surplus items for scrapping. The pump was found to be in a very poor and damaged condition with many parts missing, probably as the result of poor supervision during previous efforts at dismantling. The pumping cylinder flange was broken and a large section missing, both eccentric blocks rims were also damaged and the reversing mechanism broken beyond repair. Finally one web of the crankshaft had been bent.

This presented a huge challenge for restoration. The crankshaft web was heated to dull red in a large lathe and carefully straightened. Many new parts have been fabricated, including all piston and valve rods and a new extended cylinder cover to incorporate a facility to fix a long bolt from the end of the pumping cylinder cover to the chassis. Replacing the broken cylinder flange without the broken part would have been very difficult. A new reversing eccentric was located and fitted, along with new eccentric straps.

This pump is very similar to No 26900, the main difference being 26900 is not fitted with a reversing eccentric. It has been fully restored and runs very well on compressed air. It is currently on display at Twyford Waterworks on their open days .

Video (6.3MB 10s) :Running on Compressed Air - Left View
Video (6.5MB 10s) :Running on Compressed Air - Above Right View



Reliable horizontal 4x2x4, Type 685, No.26900, 1929, Bedwas Coke Works

Size: 4" steam cylinder, 2" pumping cylinder with 4" stroke and 24" diameter flywheel, double acting.

Woodall Duckham Ltd, purchased this pump in 1929 for the new Bedwas coke works, Trethomas Monmouthshire and used it for internal transfers and the loading of crude tar into road and rail vehicles. From 1939 when Caerphilly Tar Plant opened, Bedwas tar was sent to Caerphilly for distilling.

Bedwas coke works closed on 23 December 1986 and this pump was purchased for 10 from the demolition contractors in March 1987. Upon stripping it was found to be well worn, and the valve rod in the steam chest had been eroded to half its original thickness, due to the action of wet steam impingement. A replacement rod has been manufactured and many other parts have been replaced with original spares obtained from the stores at Caerphilly upon closure.

Although the pump is complete and in working order it did not run well on compressed air. Close examination confirmed significant wear to the steam cylinder bore. The latter was found to be lipped and slightly oval. In October 2013 the cylinder was re-bored along with other items under contract with the Mid-Hants Railway Engineering Services in their superb workshop. A new oversize piston block and rings were made along with gluing and screwing a new brass plate onto the wearing surface of the "D" slide valve to bring the latter back to its original depth. Upon re-assembly the pump was found to run very well with very little compressed air.

It is the smallest of the" Reliable" steam pumps manufactured by Evans being of 4" stroke, other pumps in the series were manufactured with either 6", 9" or 12" stroke. This particular pump is not fitted with a reversible eccentric; it is currently not on display.

Video (6.2MB 10s) :Running on Compressed Air - Left View
Video (6.8MB 10s) :Running on Compressed Air - Right View


Reliable horizontal 4x2x4, Type 680, No.30934, 1938, Caerphilly Tar Plant

4" steam cylinder, 2" pumping cylinder with 4" stroke and 24" diameter flywheel-double acting.

This pump was supplied new to the Caerphilly Tar Plant in 1938 as the standby reflux pump for the No.2 distillation unit. It was fitted with a Pickering governor driven from a second smaller flywheel on the crankshaft.

The pumping valves are of the butterfly or poppit type, being spring-loaded and the piston block runs in a stainless steel liner of 3" outside diameter and 2" internal diameter. This pump remained in service until the end of tar distillation at Caerphilly in December 1985. Early in 1986 this pump was donated by Thomas Ness Limited to the Welsh Industrial & Maritime Museum, Cardiff Docks as a typical small industrial steam pump used in the Welsh Gas, Coke and By-Products Industries.

In 2004 this pump was also found dumped in a skip outside the Welsh Industrial & Maritime Museum in the same skip as No. 24247 (see above). It was complete, although the Pickering governor had been removed and the governor flywheel had been broken. Unlike coal tar, which acts as a metal preservative, crude benzole is a powerful solvent and degreaser and the pump had seized solid with rust after 20 years of inactivity.

The pump was carefully dismantled, cleaned and has been fully restored to working order. New piston rods have been made, but otherwise most other parts were salvaged and reused. Restoration was completed November 2006, but it did not run very well. Examination has found that the cylinder bore has worn along with deep grooving to the valve face. The cylinder has been removed to have the valve face re-milled, meanwhile a new oversized piston block and new rings have been made.

The similar reflux pump from No 1 distillation unit, No 30933 was acquired by the late Chris Evans of Pickering, Yorkshire in 1987 and has also been fully restored.

Reliable horizontal 4x3x4, Type 680, No.19435, 1916, Beckton Gas Works

Size: 4" steam cylinder, 3" pumping cylinder with 4" stroke and 24" diameter flywheel-double acting.

This pump was acquired from Jim Newnham in 2006 where it had been stored under cover for many years following its rescue from Beckton Gas Works along with 3 other similar pumps. 19435 is one of the earlier versions confirmed by the open base to the chassis. Upon stripping it was found to be in remarkably good condition; the only new parts required being pins for the kite and steam valve rod. The eccentric block however, has been repositioned in the feather key position to improve alignment, requiring the eccentric strap to be reversed to provide the required off-set as shown in the photos.

The flywheel is numbered 28120, but the pumping cylinder is unmarked. As with all Evans pumps, parts are interchangeable and often become swopped around during maintenance.

The pump has been fully resored, tested on compressed air and found to run well. At present it is on public display on open days at Twyford Waterworks, near Winchester.



Reliable horizontal 4x3x4, Type 680, No.31812, 1940, Beckton Gas Works

Size: 4" steam cylinder, 3" pumping cylinder with 4" stroke and 24" diameter flywheel-double acting.

This pump was acquired from Jim Newnham in 2006 where it had been stored under cover for many years following its rescue from Beckton Gas Works along with 3 other similar pumps. This pump is incomplete as the pumping cylinder is missing. The original pump piston rod was bronze and was stolen along with the pumping cylinder before the pump was collected from Beckton. One of the air bottles is numbered 28763, but the flywheel is numbered 31812 and Evans works plate No. 31812 was found loosely wired to the chassis. For these reasons this pump has been identified as 31812.

Restoration has been completed where possible, but as the pump is incomplete it is not on public display.

Weir Reliable horizontal 4x3x4, Type 680, No.322125, 1962, Beckton Gas Works

Size: 4" steam cylinder, 3" pumping cylinder with 4" stroke and 24" flywheel-double acting.

This pump was acquired from Jim Newnham in 2006 where it had been stored under cover for many years following its rescue from Beckton Gas Works along with 3 other similar pumps. It was assembled and sold by Weirs using Evans Type 680 castings, following the acquisition of the Joseph Evans reciprocating pump section by Weirs in 1962 from Pulsometer. The Weir works plate is shown in the photos and displays the Weirs of Cathcart Glasgow Logo. During restoration the original Evans Serial number was found stamped on the chassis and steam cylinder, No. 59144. This tends to indicate that Joseph Evans had partially assembled unsold pumps held in stock at the time of the buy out.

Although probably the newest of the 4 pumps, this one was found to be in the poorest condition. Alignment was poor and 3mm had to be ground off the side of the kite casting to improve clearance. New steam piston and valve rods made and a new slide valve and kite pin fitted. Again, to further help alignment, the eccentric block has been shifted along the crankshaft to the feather key position and a good second hand set of eccentric straps fitted. The pumping cylinder is stamped MB 62165, tested 50lbs, and dated 18.8.64.

The pump has been fully resored, tested on compressed air and found to run well. It is at present on temporary display at Twyford Waterworks during their open days.


Reliable horizontal 4x3x4, Type 680, No.40308, 1953, Manvers Tar Plant

Size: 4" steam cylinder, 3" steam jacketted pumping cylinder with 4" stroke and 24" diameter flywheel, double acting.

This pump was acquired from the second-hand store at Avenue Tar Plant, Wingerworth Chesterfield in November 1988, where it had been dumped along with many other steam pumps for several years. It was taken back to Caerphilly Tar Plant for temporary storage and then to Wiltshire in 2011.

The pump has since been dismantled, cleaned, repainted and restored to its present condition. The crankshaft however has not been forged but has been machined with the following identification marks stamped on the crank webb. ME 92988/13, 029258, 68/1415, 12 - 11 - 68. The steam cylinder however is a spare Evans cylinder No.40308, off one of the Beckton pumps.

The pump was designed to transfer liquid pitch and is fitted with a steam gland between the body and the pitch pump, the latter is steam jacketted, marked with a typical Evan's E casting mark and the whole unit mounted on its own base plate. This particular pump is not fitted with a reversible eccentric; it is currently in storage.

Reliable horizontal 4x3x4, Type 680, No.69724, 1962, Beckton Gas Works

Size: 4" steam cylinder, 3" pumping cylinder with 4" stroke and 24" diameter flywheel, double acting.

This pump was acquired from Beckton along with the other Reliable pumps from Jim Newnham in 2006. Before collection could be arranged the bronze liquid piston rod and valves were stolen, resulting in most of the cast iron cover plates missing. These have been replaced with MDF look-alike versions.

The pump has been restored to its present condition. The steam cylinder has no identification number stamped on it so this cylinder has been retained on this pump.

The connecting rod, eccentric block and strap are original Evan's parts, although the banjo has been badly worn from a loose kite pin and has since been sleeved.

This particular pump is not fitted with a reversible eccentric; it is currently in storage, although it runs well on compressed air.

Reliable horizontal 5x3x6, Type 685, No.19473, 1916, Llanbradach Coke Works

Size: 5" steam cylinder, 3" pumping cylinder with 6" stroke and 30" diameter flywheel, double acting.

This pump was purchased by the Chemical Engineering Company in 1916 for the new Llanbradach tar and coke works north of Caerphilly in the Rhymney Valley, S Wales. At an unknown date (early 1930's) the pump was transferred to Bargoed where tar distillation was centralised up until 1939, when the new tar works at Caerphilly came on stream.

After the war, this pump along with other equipment, was transferred to the Caerphilly site where it was installed initially on effluent disposal and finally on caustic soda duties, following the commissioning of the new naphthalene plant in 1962.

In 1982 the naphthalene plant closed and the pump fell into disuse. The cylinder was removed in 1985 and used on a similar pump following frost damage. The remains, including the base plate were recovered in 1991 and transported to Essex.

In 1996 the original cylinder was reunited with the pump enabling full restoration to be completed. This particular pump is fitted with a reversible eccentric. It is currently in store in Wiltshire.

Video (6.7MB 10s) :Running on Compressed Air - Above Left View
Video (6.3MB 10s) :Running on Compressed Air - Right View


Reliable horizontal 5x4x6, Type 685, No.18949, 1914, Beckton Gas Works

Size: 5" steam cylinder, 4" pumping cylinder with 6" stroke and 30" diameter flywheel-double acting.

This horizontal Evans is a very early example. It originally came from Beckton Gas Works and has been out of use for many years.

The pump is assembled, by individually bolting both cylinders and crankshaft bearing pedestals on to the common flat bedplate. An additional interesting detail is that both piston rods are threaded and screwed into the kite, adjusted and held by locking nuts. In the early 1900's this detail was changed to a cotter fixing with slotted piston rods and kite. Compared to more recent manufactured 6" stroke pumps, this method of fixing has resulted in a smaller kite and connecting rod.

This pump was acquired from the Jim Newnham in June 2006 and is under restoration. In October 2013 the steam cylinder was re-bored and re-faced under contract by the Mid-Hants Railway Engineering Department and re-assembly has now commenced. New piston block, rings, bearings and eccentric straps have been made. The plan is to complete restoration during 2016.


Reliable horizontal 6x6x9, Type 685, No.37673, 1949, Pontypool Gas Works

Size: 6" steam cylinder, 6" pumping cylinder with 9" stroke and 36" diameter flywheel, double acting.

This pump was one of a pair installed in 1949, to transfer crude gas works tar from the new continuous horizontal gas retorts under construction at Panteg, Pontypool. The plant worked until the early sixties using coal as its feedstock, to produce towns gas for the Newport undertaking of the Wales Gas Board. The retorts were closed down following the construction of a new gas reforming plant that used naphtha oil as its feedstock. This plant also on the same site only ran for about 4 years when it too became redundant, but this time because of the advent of North Sea (Natural) Gas.

In 1972 the remaining equipment was offered for sale prior to demolition. The 2 pumps were purchased by Thomas Ness for use as spares at their tar distillation works at Caerphilly for the price of 30 each, plus 3 (VAT @ 10% in those days!).

No. 37672 was used for spares, whereas 37673 was installed as a replacement for 30898, the No 2 Daily Products pump worn out after 33 years of continuous use. 37673 was acquired from Caerphilly following closure of the tar works in 1986, along with the steam cylinder from 37672. Unlike 30898 this pump is fitted with a liner.

The pump has been fully restored and runs well on compressed air. It is currently in store in Wiltshire.

Evans horizontal reliable pump No. 30898, size 8x6x9 was scrapped many years ago, but the steam cylinder survives in the Museum of Power, Langford as a 'donation pot'.



Reliable horizontal 8x5x9, Type 686, No.12011, 1905, Beckton Gas Works

Size: 8" steam cylinder, 5" steam jacketted pumping cylinder with 9" stroke and 36"diameter flywheel, double acting.

This pump was originally used at Beckton Gas Works, but had been unused for many years until acquired by its previous owner. It is an early design with the steam cylinder, pumping cylinder and bearing pedestals individually bolted onto the common bedplate, unlike pump 18949 this pump employs the later method of attaching the piston rods to the kite using cotters.

In June 2006 it was acquired from Jim Newnham. It has since been donated to the Museum of Power at Langford, Essex where it is currently in covered storage.