Cooke Brothers Ltd has an excellent reputation throughout British industry as a manufacturer of quality hinges and pressings. Established in 1872, the company continues as a progressive independent family run business.

All the materials used in producing Phoenix architectural hinges (butt & door hinges) comply with the appropriate standards. Grade 304 Austenitic stainless steels are the main component in the stainless steel ranges.

For installation in very harsh environments hinges can be manufactured, to special order, in Marine grade 316 stainless steel. These grades of stainless steel meet or surpass BS EN 1449 Part 2 1983.

CS4 rolled steel which meets BS EN 1449 Part 1 1991 is used for Phoenix mild steel hinges and Cooke Brothers brass hinges are produced from brass alloys that conform to BS EN 1652 1998.

FINISHES

Architects and specifiers depend on Phoenix hinges to match or complement the finish of the architectural hardware and to retain their appealing looks over many years. Phoenix hinges are normally available ex-stock in satin polished stainless steel.

Other finishes are available to meet the design and styling considerations of new build and refurbishment schemes. These include bright polished stainless steel, satin or bright brass lacquered and antique bronze lacquered finishes.

Mild steel hinges are available with satin zinc, bright zinc, simulated stainless, brass and antique bronze lacquered finishes. These finishes are very durable and only require the minimum care and maintenance throughout a lifetime’s service.

hinges are subjected to rigorous test procedures to ensure that they comply with, and surpass, BS 7352:1990. Products are being designed and developed to satisfy future international standards. There are six test cells in the company’s development section, built to test up to and beyond these standards.

The performance and endurance of Phoenix hinges are tested in accordance with NAMAS guidelines through ‘lifetime’ endurance cycles. In addition to these stringent mechanical tests, hinges undergo environmental simulation testing to determine their level of corrosion resistance.

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Architectural hinges are designed to withstand installation in arduous situations such as marine exposure. Hinges are tested in a laboratory-controlled environment, simulating many years’ normal use in harsh conditions. Corrosion resistance is specified in accordance with BS EN 1670: 1998 and is graded as follows:

Browse the Cooke Brothers web sites
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Cooke Brothers Main Site  - Cooke Brothers Limited
Architectural Hinges Site   - Architectural Hinge UK - Cooke Brothers Limited - Door Hinges

The appropriate specification and correct selection of hinges is crucial to their performance and depends on the following factors: -

• Door size, weight and construction.
• Frequency of use and the type of traffic.
• The environment and location

Hinges should always be specified to comply with the BS 7352 classification appropriate to the type of application. When specifying, please state the actual door weight and the adjusted door weight.

To assist in selecting the right Cooke Brothers hinges see classification section

NUMBER OF HINGES

Normally three hinges are fitted to each door leaf in accordance with BS 4787 part 1. For doors exceeding 2100mm in height a fourth hinge should be fitted.

HINGE INSTALATION

Hinges should be installed in accordance with the door manufacturer’s recommendations. Where no such instructions are available care must be taken to ensure that the hinges are correctly aligned and fixed securely to door and frame. Screw holes should be piloted and screwheads must be flush with the hinge face to ensure that the door closes properly.

HINGE POSITIONING

Security is inherent in all Phoenix hinges. When fitted to an inward opening door the hinges cannot be attacked from the outside. Where the hinge barrel in the ‘Standard’ hinge range is exposed to possible attack security is provided by both ends of the hinge shaft being riveted over.
Security can be further enhanced with built in hinge bolts (dog bolts) these are unobtrusive yet effective, preventing the opening of a door even if the hinge pin is removed and are an option available on most Phoenix hinges.
High level security is achieved with welded pin hinges - filling the hinge barrel ends with a solid plug of welded metal removes the risk of the pins being driven out. For very high security applications Cooke Brothers 7160A BT hinge which was developed to meet the exacting demands of British Telecom is available.
A range of anti-tamper screws is available to order. Institution, Hospital or Prison safety hinges are made with the hinge pin tips and knuckles radiused and are designed for use in buildings where there is a possible risk of self-inflicted injury.

Cooke Brothers Phoenix architectural hinges are classified under BS 7352: 1990, and are being developed to meet future international standards on their publication, see the following page.

These are specifications for the strength and durability of metal hinges for side hung applications and dimensional requirements for template drilling. The BS class or EN grade is given according to the maximum mass of the hinged leaf with which they will be used and the maximum annual number of operations.

It is important to remember that the weight of the door hardware and any glass used, can significantly increase the mass of a door and should be taken into account when determining which hinges to specify.

Door closers also increase the loading on hinges; if a door closer is fitted, it is recommended that the effective door mass be assumed to be 20% greater than the actual door mass. Backcheck closers impose even more load and the mass of the door should be assumed to be 75% greater than the actual mass

 

TYPICAL TOTAL WEIGHT OF DOOR Total weight of door + weight of handles kg. + weight of lock kg. + weight of kick plate kg. + weight of glazing kg. + weight of door closer (= 20% of total mass of door) kg. + door closer and back check (= 75% of total mass of door) kg. = TOTAL ADJUSTED WEIGHT kg. DOOR SITUATION AND ESTIMATED NUMBER OF OPERATIONS   Daily Annually High frequency heavy duty situations: Large departmental store entrances Large office building entrance Cinema or theatre entrance School entrance Entrance door to school toilets City centre shop entrance Large city bank entrance School corridor fire door Town bank entrance City centre restaurant entrance Large office corridor fire door Town centre shop entrance Large office or factory toilet entrance Hospital ward door 5,000 4,000 1,300 1,250 1,250 1,000 1,000 600 500 500 450 400 400 350 1,500,00 920,000 455,000 225,00 225,00 300,000 250,000 108,000 125,000 150,000 104,000 120,000 92,000 128,000 Medium frequency medium duty situations: School classroom door Office door Store toilet door Dwelling rear or side entrance Dwelling front entrance 80 75 60 15 12 15,000 18,000 18,000 5,400 4,400 Low frequency light duty situations: Dwelling living room communications doors Dwelling bathroom/toilet door Dwelling cupboard door Dwelling bedroom door Dwelling wardrobe/closet door Dwelling cabinet furniture doo r 30 20 12 9 6 5 10,800 7,200 4,300 3,200 2,200 1,800 TABLE 10 - BS 7352:1990

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
Architectural Hinges Site   - Architectural Hinge UK - Cooke Brothers Limited - Door Hinges

Standard hinges
Phoenix Standard stainless steel hinges have five knuckles with a continuous hinge pin, the heads are riveted over for extra security. The range is ideal for light to medium service, from cupboards to domestic and light commercial doors.

Slimline hinges
Slimline hinges are manufactured with thrust bearing washers, giving them the discreet elegance which makes them suitable for installations where styling demands that the architectural ironmongery be as unobtrusive as possible. Phoenix Slimline hinges surpass BS 7352 class 9 and are suitable for installation in situations where they will be subject to heavy duty usage.

Traditional bearing hinges
The traditional robust appearance of the bearing hinges and their high performance meet the demands of heavy usage. With a comprehensive range of options these hinges are designed to match the specification for applications where strength and durability are essential considerations.

Lift-off hinges
Lift off hinges are designed to facilitate the factory fix production of door sets and provide flexibility in use by allowing removal of doors from their frames for ease of installation and maintenance.

Continuous hinges
Phoenix Continuous hinges have multiple knuckles which run the entire height of the door. These hinges can be fitted with dog-bolts and seam welded for extra security. This range is ideal for service in situations where doors will be subjected to very severe use or abuse over a long period of time.

Custom hinges
Taking advantage of Cooke Brothers design and development capabilities, Custom hinges are either specially made for particular requirements, or a modification of an existing product to suit your special needs.

Typical Applications:- Based on BS 7352:1990

LIGHT DUTY HINGE   HEAVY DUTY HINGE Low frequency of use (little chance of doors being subjected to abuse or misuse). Example: domestic use, internal and external doors in dwellings, cupboards, cabinets, wardrobes, louvered doors and shutters. High frequency use (risk of misuse). Example: public buildings, hospitals, commercial use, office doors (medium to heavy use) classroom doors, etc. MEDIUM DUTY HINGE     SEVERE DUTY HINGE Medium frequency of use (some chance of doors being subjected to abuse or misuse). Example: domestic/public area use, external doors of dwellings which give access to public areas. Office doors (heavy to severe use), doors in public areas i.e. schools, shops, public buildings, hospitals, prisons etc. (high risk of abuse). 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 Architectural Hinges Site   - Architectural Hinge UK - Cooke Brothers Limited - Door Hinges