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Cooke Brothers

mage of Cooke Brothers' new office building at Phoenix Way, Aldridge.

Contact Us

Cooke Brothers Ltd Northgate, Aldridge, Walsall, West Midlands, UK. WS9 8TL
Phone : 01922 740001
Fax : 01922 740003
E-mail : sales@cookebrothers.co.uk


Sites & Catalogues


Cooke Brothers' Sites
Continuous Hinge Catalogue
Product Types

Cooke Brothers - Continuous Hinge.

Cooke Brothers has over one hundred years' experience manufacturing continuous hinges or piano hinges. Established in 1872 in the jewellery quarter of Birmingham by the sons of William Cooke, a Lancastrian in the cotton industry. The business concentrated on the production of hinges, prospered and grew, relocating several times within the industrial heart of the city until, in 1960, when a green field site in adjoining Staffordshire was purchased as the base for a purpose built factory. Since then the premises have been extended several times and with the recent acquisition of adjoining properties, Cooke Brothers now occupies a site exceeding three acres, with a further three acres available for future growth. You cannot sell a company on its history alone, however all this experience of combining enterprise and flexibility with caution and tradition are the foundations upon which the company thrives today and out of which has come our range of continuous hinges. Hinges made by Cooke Brothers are acknowledged as world class engineered products by engineers, architects, designers, craftsmen and specifiers world-wide.
MASTER HINGE MAKERS SINCE 1872

The wide ranges of sizes and finishes mean that Cooke Brothers continuous hinge applications are virtually limitless. By taking advantage of our in-house design and development capabilities, continuous or piano hinges can be specially made, or existing products modified, for your specific volume requirements

Browse the Cooke Brothers web sites
Cooke Brothers Top Index       -
Cooke Brothers Limited - Hinges UK - See the new digitsafe
Cooke Brothers Main Site        - Cooke Brothers Limited
Continuous Hinge Site             - Cooke Brothers Continuous Hinges UK


Materials and Finishes

All the materials used in producing Cooke Brothers continuous or piano hinges comply with or exceed current British/European manufacturing standards.  
     
Table 1    
Materials    
  Hinge Flap Hinge Pin
  Grade Standards Grade Standards
Stainless Steel
      303 BS 970
  304 BS 1449 Part2 1983 304 BS 1554
  304 2A (2A brigt finish upto 2mm thick) 304 BS 1554
  304 2B (2B dull finish 2.64mm and above) 304 BS 1554
  316 # BS 1449 part 2 316 BS 1554
Mild Steel
  CR4 BS 1449 part 1 B.D.M.S BS 1052 / BS 970
  HR4 BS 1449 part 1 B.D.M.S  
  CS4 BS 1449 part 1annealed and re-rolled B.D.M.S  
  CS4 Pre-plated material B.D.M.S  
  CR4 # Zinc pre-plated B.D.M.S  
  CR4 # Galvanized pre-plated B.D.M.S BS 1052-zinc CT
         
Brass
  CZ108 BS EN 1652/BS2870 CZ 108 BS EN 12166 / BS 2873
Aluminium
  3103 BS EN485-515-573 6063 BS EN 1301 / BS 1475
     
# To special order only  
   
  Specification of hinge pin always matches hinge flap material unless otherwise stated.  
     
  The standard ranges of finishes available are shown in the dimension tables, non-standard finishes are available to special order subject to availability and quantity.  
     
Table 2    
Finish Abbreviations Mild Steel Stainless steel Brass Aluminium  
Self colour (mill finish) SC  
Pre-plated steel (Brass) EB †      
Pre-plated steel (Nickel) NP †      
Pre-painted (Bronze) BRZ †      
Bronze Electrophoretic BRZE      
Chrome-plated CP † •††    
Bright polished POL  
Satin Polished SPOL   * * *  
Zinc-plated Zn8 & yellow passivate ZP & cp *      
Zinc-plated Zn8 & yellow passivate ZP & yp *      
Electro Brass plated EBP *      
Pre-coated steel - Zinc ZTEC *      
Pre-coated steel - Galvanized GALV *      
Electro paint - black EP * *    
Powder coat PC * *    
Anodised Silver ANOS       *
     
Finishes available on stocked range where indicated on Data Sheets  
*
Optional finishes available as specials and subject to quantity  
Available where listed  
††

CS4 Annealedd and re-rolled

 

Browse the Cooke Brothers web sites
Cooke Brothers Top Index       -
Cooke Brothers Limited - Hinges UK - See the new digitsafe
Cooke Brothers Main Site        - Cooke Brothers Limited
Continuous Hinge Site             - Cooke Brothers Continuous Hinges UK


Manufacturing Tolerances and Production Priorities

Standard Continuous Hinges

Hinge Length

Our standard continuous hinges are detailed from page 16 to page 52 and are designed and manufactured to set lengths, usually 1830mm

As supplied, the hinge will have a `free working action` in the hand, and an amount of longitudinal and lateral play (dictated by material and tooling tolerances). The hinge pin will be held tight within the knuckles Modification to the set length of a hinge by the customer after delivery (receipt) may have several affects.

  • The hinge pin may become loose and fall out of knuckles
  • There will be more noticeable longitudinal play (along the hinge length).
  • There will be more noticible lateral play (across the hinge width)
  • The hinge action will generally become looser.

However hinges can be manufactured to special lengths eliminating the above problems, please see the special hinge section in the data sheets. It is recommended that if the hinge is cropped or cut to a non-standard length, it should have a minimum of three knuckles. When knuckles are cropped the hinge pin tends to become captive locally to the ends due to the cut edge deforming the hinge knuckle and pin. Ideally the hinge should consist of an odd number of knuckles so that both end knuckles are on the same hinge flap which avoids the hinge pin acting as a torsion bar and resisting efficient operation.

 

Hinge Width

During the manufacture of our standard range of continuous hinges, priority is given to obtaining the correct hinge open width.

Tolerances on hinge flap and pin material can have a follow on effect on other parts of hinge. The knuckle clearance may vary. The open back angle may vary. The lateral play (across the hinge width) may vary. These could all vary from batch to batch or even hinge to hinge. Customers requirements for a combination of hinge width, knuckle clearance, open back angle and lateral play, can be met.

Browse the Cooke Brothers web sites
Cooke Brothers Top Index       -
Cooke Brothers Limited - Hinges UK - See the new digitsafe
Cooke Brothers Main Site        - Cooke Brothers Limited
Continuous Hinge Site             - Cooke Brothers Continuous Hinges UK


Standard Holes and Hole Centres

Due to the cumulative build up of tolerances during manufacture, standard hole centres may not be consistent from batch to batch or even hinge to hinge therefore the holes will not line up with pre-drilled/pierced holes in customers components. However we are able to pierce special hole sizes and /or hole positions to customer`s drawings, usually by manufacturing parts for our piercing equipment or tools.

 

Standard tolerances
mm
Hinge width (hinge open) mm
12.7 to 38.1
±0.5
40.0 to 76.2
±1.0
101.6 to 152.4
±1.5
Hinge length mm
102 to 500
0 - 1
600 to 1830
0 - 2
2000 to 2500
0 - 3
Hole centres - cumulative on length
(standard toling) to true position
±1.0
Hole diameters
(plain)
+0 -0.15

 

Browse the Cooke Brothers web sites
Cooke Brothers Top Index       -
Cooke Brothers Limited - Hinges UK - See the new digitsafe
Cooke Brothers Main Site        - Cooke Brothers Limited
Continuous Hinge Site             - Cooke Brothers Continuous Hinges UK


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