That spline tool you just purchased has two ends, one convex and one concave.
From the stltoday.com
Start by using a small nail or awl to loosen and remove the existing spline.
From the stltoday.com
Hardware stores and home centers sell replacement screen and window spline.
From the stltoday.com
Push the rubber spline into the frame to hold the screen tightly and smoothly in place.
From the ocregister.com
A reed spline is glued around the groove to secure the sheet in place.
From the delawareonline.com
A spline is a rubber coated articulated metal that can be manually bent to most curves.
From the en.wikipedia.org
This problem is commonly resolved by the use of spline interpolation.
From the en.wikipedia.org
Now cut a piece of spline the length of the top edge of your frame.
From the stltoday.com
Take a piece of the spline with you to the hardware store, as there are several thicknesses.
From the stltoday.com
More examples
A flexible strip (wood or rubber) used in drawing curved lines
Slat: a thin strip (wood or metal)
The Spline are a fictional race of sentient space-faring creatures that appear in several of British author Stephen Baxter's Xeelee Sequence novels and short stories. They are typically described as fleshy spheres, encrusted with a variety of pods and orifices. ...
In mathematics, a spline is a special function defined piecewise by polynomials. In interpolating problems, spline interpolation is often preferred to polynomial interpolation because it yields similar results, even when using low-degree polynomials, while avoiding Runge's phenomenon for higher ...
A rectangular piece that fits grooves like key seats in a hub and a shaft, so that while the one may slide endwise on the other, both must revolve together; A flexible strip of metal or other material, that may be bent into a curve and used in a similar manner to a ruler to draw smooth curves ...
(Splines) A series of grooves generally located on the end of a shaft that slide into a grooved hole with a matching series of grooves. This interlocking series of grooves holds the components together.
(Splines) A term used to denote filler strips.
(Splines) Mathematical method of smoothing linear features, often used to interpolate between points digitized along a curved feature.
(Splines) Narrow keys formed integral with a shaft produced by milling longitudinal grooves in the shaft and used instead of keys for maximum strength.