1937

Mr Jack Stone in the USA produced the plate freezer with paddle wheel with pairs of plates attached radially giving rise to the name Jackstone.

1945

UK rights to the Jackstone Plate Freezer bought by Ross Foods, who were heavily involved with trawling and fish.

1962

The Vertical Plate Freezer was introduced the first Jackstone installation was on the Icelandic vessel Narfi.

1963
George Williams Engineering Company went into liquidation and was sold to Clarke Built Ltd in May of that year. The new company Clarke Built (Williams) concentrated on work in the ice cream and fishing industries.

1967
Clarke Built (Williams) and Clarke Built were bought by APV. The Clarke Built factory at Chiswick was closed and work transferred to Crawley.

1969

The first Cartofreeze installation at Moy Park Northern Ireland.

1970
Mr Frank Clarke retired and the company renamed APV Clarke Built.

1970-72
Agreements reached with Ashworth Bros in America led to the development of the spiral freezers, the first one being installed at Country Range in Alton in 1972. (J & E Hall were the refrigeration contractors)
Thermal storage units, vacuum thawing units and flake ice machines introduced in this period.

1973
The first liquid nitrogen tunnel was designed and built for BOC.

1974
Company was renamed APV Parafreeze.

1974

Jackstone purchases Torbinia, which then takes over manufacture of all freezer plates.

1978
The first Spiraflex was installed at Walls in Southall.

1978

The first Automatic Plate Freezer developed and sold to Tudor Dairies.

1980

Jackstone wins the Queens award for export achievement.

1987
APV Parafreeze and Jackstone Froster merge to form the new company of APV Jackstone, manufacturing continues at Grimsby and Thetford sites.

1988
Boom in fishing industry leads to record freezer sales. APV change name to APV Baker Jackstone Divison.

1989
Company wins Queens award for export achievement. 90% of sales are now exported. Development of SPIRAL 2000 progresses. APV renamed to APV Baker Freezer Division.

1990
Largest single order for spiral freezers and chillers was received from Ross Young's Ltd in Grimsby,
Company develop sales into Asia.

1993
APV rename company APV Refrigeration and Freezer Division.

1994
New Spiral tunnel design including CASH Cleaning system installed at Centaco Thailand.

1995
AAF McQuay Inc. purchase APV Refrigeration and Freezer business. Freezer business renamed Jackstone Food Systems, largest Spiral Freezing Tunnel installed at Nestle Dairy Farm, Hong Kong.

1996
Comprehensive CASH system supplied with new spiral tunnel at Wisbech U.K.

1999
3 tier multibelt inline supplied.

2000

Jackstone Food Systems management buy-out manufacturing continues at Thetford and Dartford sites.

2001
Dual Airflow System added to product range.

2002
1st Dual Airflow Spiral installed at Headland Foods in Flint, Wales.

2003

Name changed to Jackstone Freezing Systems
Horizontal plate freezer supplied to Peru.

2004

Jackstone supplies latest design packaged Delta Airflow Spiral for Pizza bases.

2005

Jackstone supplies redesigned stainless steel IQF to Iran
Jackstone supplies their first Delta Airflow Spiral into the Russian market.

2006

Jackstone Delta Airflow success continues with two large 6000kg/hr and 2 off 3000kg/hr supplied into South Africa.

2007

Jackstone worldwide market continues to grow when they win the order for a Delta Airflow Spiral from the largest chicken producer in Jordan
The Russian market continues as their first customer in Russia orders their seventh spiral.

2008

Twin Drum Delta Airflow installations in Australia and Mexico
Plate Freezers manufacture returns to the Thetford site, first Vertical Plate Freezers from the Thetford site supplied to a meat processor in Turkey.