Cockspur Window Handle Fitting, How to Measure The Stack Height Correctly
How to Measure a Cockspur Window Handle for Proper Fitting
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When it comes to replacing or ordering new cockspur window handles, accurate measurements are crucial for ensuring a secure and snug fit. One of the most important dimensions to measure is the stack height. The stack height refers to the distance between the base of the handle and the underside of the spur. Getting this measurement right is key to ensuring the cockspur handle operates smoothly and locks properly.
Step-by-Step Guide to Measure a Cockspur Window Handle:
Remove the Handle from the Window:
Before taking any measurements, carefully remove the cockspur handle from the window frame. This is necessary to measure accurately without the obstruction of the window frame.
Position the Base on a Flat Surface:
Once the handle is removed, place its base on a flat surface. This will give you a solid reference point from which to take measurements.
Measure the Stack Height:
Using a ruler or a measuring tape, measure the distance from the flat surface (the base of the handle) to the underside of the spur. This is your stack height measurement, which typically ranges from 9mm to 21mm depending on the type of window and handle.
Why is the Stack Height Important?:
The stack height is an essential factor when ordering a new cockspur window handle because it directly impacts how tightly or loosely the handle fits onto the window frame. A handle with the correct stack height will lock securely in place, ensuring the window operates efficiently. On the other hand, an incorrect stack height may result in a loose or overly tight handle, leading to operational issues.
What is a Cockspur Window Handle?:
Cockspur window handles are one of the most common types of window handles, particularly in older styles of aluminum, timber, and uPVC windows. They are known for their distinctive design, featuring a spur that protrudes from the side of the handle. The spur works by hooking over the edge of the window frame to lock the window in place securely.
Where Are Cockspur Handles Typically Found?
Cockspur handles are most frequently found on older window types, including aluminum windows that were popular in the 1970s and 1980s. They are also common in timber-framed windows and certain types of uPVC windows. Although newer window systems may use different mechanisms, cockspur handles are still widely available as replacement parts.
How Do Cockspur Window Handles Work?
Cockspur window handles operate through a simple mechanism. The handle's spur locks over the edge of the window frame, securing the window in the closed position. When you turn the handle to open the window, the spur lifts away from the frame, allowing the window to be opened. This straightforward locking mechanism is durable and reliable, making it a popular choice in many homes.
Common Stack Heights for Cockspur Window Handles:
While stack heights for cockspur window handles can vary, the most common sizes include:
9mm
12mm
15mm
17.5mm
21mm
22mm
It’s crucial to measure your existing handle’s stack height to ensure you select the correct size when ordering a replacement.
Tips for Maintaining Cockspur Window Handles
To extend the life of your cockspur window handles, regular maintenance is key. Here are a few tips to keep them in top working condition:
Lubricate Moving Parts:
Use a light lubricant, such as silicone spray, on the moving parts of the handle to prevent rust and ensure smooth operation. Avoid heavy greases as they may attract dirt.
Check for Wear and Tear:
Periodically inspect the handle for signs of wear and tear. If the handle feels loose or doesn’t lock properly, it may be time for a replacement.
Clean Regularly:
Keep the handles clean by wiping them down with a damp cloth. Avoid abrasive cleaners that could damage the finish.
Tighten Screws
Over time, the screws that hold the handle in place can become loose. Check the screws periodically and tighten them if necessary to prevent the handle from wobbling or becoming misaligned.
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