WERN2

WERN INTER AB

STOCKHOLM, SWEDEN.  

                               MECHANICAL HVAC CONSULTING ENGINEERING.                                              DESIGN & INSPECTION: Water, Cooling, Piping, Heating, Ventilation, Air Conditioning, Automatic Control.              Slide Rule Engineering Design      

Decimal Point Slide Rule Calculator IWA1633 & 1638.  

 P-Phone Control AB

   PeriProx Control Solutions.


WERN INTER AB

WERN INTER AB started 1963 in Sweden as the HVAC consulting engineering company,        

Wern Inter VVS AB. It was founded by Carl R. Wern, a Registered Professional Mechanical Engineer in the state of Michigan, USA. Carl´s brother George joined in 1964 the company. 

Its present name Wern Inter AB was registered 1984.

HVAC project design for Swedish and Foreign buildings.

Heating, Ventilation, Air Conditioning including, Plumbing, Cooling, Piping and Controls

for Swedish and Embassy buildings in Europe, Africa, Asia and North America.

Slide rule and calculator design

- Slide rule design awarded with gold medal to the Wern brothers

- Slide rule calculator design and production for various clients

Patents

- Touch control for lighting installations patented in 1972

- Patent licence  for picture telephony on an ordinary subscriber line, sold 1976 to Ericsson.

Wern Inter AB. Engineering service was closed down year 2000.


P-Phone Control AB

The company (PPC) was founded 1992 by Carl together with his brother George in a joint

venture agreement with their brother Lars who is a registered European Patent Attorney.

The Wern brothers proximity sensor was first used in lighting installations for touch control and

thereafter in art museums as invisible shields preventing exhibited objects from being touched.   

Today called PeriProx, the technology has been shown applicable for providing enhanced security 

in 2000 to a Saab car and in 2009 to a Scania truck. Its usefulness for precise proximity sensing  was shown in 2010 by Ericsson´s Connected Tree at Barcelona, Hannover and LasVegas international fairs followed by a permanent exhibition at Ericsson Studio in Kista and by a PeriProx patent in 2012 on a monitoring system for prevention against natural as well as man-made disasters.

Read more about PPC offer and historic in www.periprox.com.     


MECHANICAL HVAC ENGINEERING DESIGN PROJECTS 1963-2000. 

Some Domestic and Foreign projects listed below.   

DOMESTIC PROJECTS - INRIKES PROJEKT.









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 1961-1963.Åhléns City      1968.Hultsfred Centrum  1976.Statens Vattenfallsverk    1979.Vadstena Slott

    









 1974.Kockums, Malmö         1979.BRF Östberga       1983.Riksgäldskontoret        1988 Eurostop,BP


FOREIGN HVAC PROJECTS - UTRIKES PROJEKT.    










  1979.Beijing, China       1989.Maputo, Mocambique     1990.Tallin, Estland            1991.EU, Brussel

                                                   

Slide Rule Design

System Wern Slide Rule IWA 1633 & 1638. 

Gold medal award at the International Exhibition in Brussels 1966. 


Slide Rule Reference 

National Museum of American History: System Wern ABC Circular Slide Rule.

http://americanhistory.si.edu/collections/object-groups/slide-rules

https://americanhistory.si.edu/collections/search/object/nmah_1811360

www.sliderulemuseum.com  International Slide Rule Musum, Denver Colorado, USA.  

www.oughtred.org

https://en.wikipedia.org/wiki/Slide_rule

http://rechnerlexikon.de/artikel/IWA_1638_ABC-Rechner 

        

                                                                       IWA 1633

Manual 1     Manual 2

      

IWA 1638

Note:  IWA1638. Pat.Pend. has a black washer in the slide rule center with Manual 1 and Manual 2/Except Example #28 & #29.

           IWA1638. Patended has a red washer in the slide rule center with Manual 2.

Manual     Manual 1    Manual 2    IWA Specification 

  https://www.geogebra.org/classic/y2dbgt95 

   by Reinhard Atzbach 

1966. IWA1633                   IWA1638 DYNAMIC ART         2016. IWA 1638


Slide rules manufactured by IWA Rechenshieberfabrik, W. Germany.

IWA INFO


Special calculators                 

Design layout made by WERN INTER AB for some of our Clients.

IWA07133.  Air Duct Calculator        SI75.   Conversion Factors                kv81.  Valve Factor

1972. Metric System. 170x240 mm               1975. Technical system. 90x120 mm               1981.Water, Steam & Air. 90 x 120 mm

Manufactured by IWA, W. Germany.              Manufactured by INPLASTOR,  Sweden.        Manufactured by INPLASTOR, Sweden.


1960. Draftsman triangle        1967.SI-GUIDE        1970.EconomicOrderSize         1973. NavigationRuler                                 

Calculators                        

Water - Heating - Ventilation.  Prototypes to be shown later.


MECHANICAL ENGINEERING Tables and Diagram 

Air Duct friction       Air Humidity    Conversion Factors IWA1638


MECHANICAL ENGINEERING REFERENCE 

ASHRAE SOCIETY      Energi-miljo-SwedishTidskrift        HVAC VVS - Swedish Museum in Sweden  


CRW Background

1945. Hermods Correspondence Institute, Malmö: Mathematics, Building Design Construction, etc.

1949. Stockholm Technical Institute, Sweden: Swedish HVAC Engineering Degree.

1960. Registered Professional Engineer in Michigan, USA.     

1960. ASHRAE Life Membership. 

1963. HVAC Technical Asociation in Sweden - Membership

1983. Registered Professional Engineer in Minnesota, USA.

1994. Swedish Institute for Technical Approval in Construction: Function Control/Ventilation.


VINKELNS TREDELNING / ANGLE TRISECTION


Vinkelns tredelning är inom geometrin känt som ett tvåtusenårigt olöst problem.

CRW presenterar nu lösningen på hemsidan "www.allinone.nu".


Angle trisection is a classic geometric known unsolved problem in more than 2000 years. CRW presents now a solution shown on his home page "www.allinone.nu".


Sweden June 9, 2021.

Carl R. Wern 


Copyright 2021. Carl R. Wern