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 Expert  728417

Expert in Glass Forehearth Design, Glass Conditioning, Training, Troubleshooting, Technical Audits

Available for your Consulting and Expert Witness Needs

S Yorks
United Kingdom
Education Work HistoryPublicationsConsulting Services Expert Witness

Summary of Expertise:

Listed with other top experts in: 

Expert has been working in the glass industry for 34 years having served the first 12 years as a research physicist in the British Glass Industry Research Association - now known as British Glass. Expert joined BH-F where his main responsibilities was worldwide trouble shooting on forehearths and distributor systems. Expert joined PSR and worked as Technical Director where he designed and patented the successful PSR 500 forehearth and control and combustion systems.

Expert joined Emhart Glass in 2001 to redesign the Emhart suite of forehearth systems and he introduced the Emhart Glass 340 and Emhart Glass 240 systems. Expert joined Sorg and was appointed President of Sorg USA.

Expert formed his own forehearth services company in January 2009 to offer forehearth training courses, technical audits of forehearth and distributor systems and general forehearth consultancy. Forehearth Services customers include some of the biggest names in the global glass industry.


glass manufacturing




glass forming

Show Secondary and Basic Areas of Expertise

Year   Degree   Subject   Institution  
1986   BSc   Computer Science   Hallam University  
1976   G. Inst Physics   Physics   North Staffs University  
1975   HND   Applied Physics   North Staffs University  

Work History:
Years   Employer   Department   Title   Responsibilities

2006 to 2008


Nikolaus Sorg



President Sorg USA


Product and market development within the Americas

2001 to 2006


Emhart Glass




Product Manager Forehearths


Responsible for the design and implementation of a new suite of forehearth products.

1989 to 2001


Parkinson Spencer Refractories


Technical Division


Technical Director


Setting up and managing a division of PSR to design a range of forehearth products

1987 to 1989








Worldwide troubleshooting on BHF forehearth systems

1976 to 1989


British Glass Research Association






Design and implementation of experimental procedures to study heat transfer in glass

Publications and Patents Summary

Expert currently holds 2 patents relating to forehearth design. He has also given papers and lectures in the UK, USA, Mexico, Brazil, Argentina, India, Pakistan, Philippines, Taiwan, Japan, Thailand, Singapore, France, and Italy. He has published approximately 30 papers in Glass Industry, Glass, Glass International, Glassworldwide.

Consulting Services:
Selected Consulting Examples:
  • Expert has been involved with a leading USA container manufacture to assess forehearth production problems.
  • Expert has worked with a leading UK pharmaecutical container manufacturing company to optimise production.
  • Expert has worked with a leading Italian company to assess the most appropriate technology for a rebuild project.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Recent Litigation Client Requests:
  • Glass expert for consulting on Glass Report.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Country / Region   Summary
Worldwide   JOHN has worked in 69 countries worldwide.

Additional Skills and Services:

He has designed a series of training courses for both technicians/furnace management and forehearth operator personnel. These courses provide technician with the insight to allow them to critically assess available forehearth technology and to ensure the equipment they purchase is the most appropriate to their production requirements. A separate series of courses is aimed at the forehearth operator. These courses are not designed to teach how to alter set point or adjust air/gas ratio - it is assumed the operator already knows how to do this. These course teach the operator what happens within the forehearth as a result of these changes and within what timescale - providing the operator with the knowledge to predict the results and implications of any changes made to the system. This greatly increases operator effectiveness.

Supplier and Vendor Location and Selection

Expert has an extensive knowledge and experience of alternative forehearth technology and can advise glass manufacturers on the most appropriate technology for their application.

Other Skills and Services

Expert offers forehearth audits on operational forehearths. These audits establish the precise operational status of the forehearth system. The audits are used to analyse forehearth operation and efficiency and for the production of a report that details the status of the system and the measures necessary to return the forehearth to maximum operational efficiency.


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