A single-component calcium halophosphate Phosphor and a low pressure discharge lamp utilizing such a phosphor is provided having a lamp envelope having an inner surface, means within the lamp envelope for generating ultraviolet radiation; and a layer of a luminescent material adjacent the inner surface of the lamp envelope for generating visible light when impinged by the ultraviolet radiation. A plunger is connected to the crankshaft for pumping a fluid through a cylinder. As the bucket rotates zthrough the dumping process components of the linkage system travel a path over and beyond the end of the raised lift arm assembly maintaining favorable mechanical advantage over the bucket throughout its rotation. Improved methods for manufacturing the surgical needles and for providing and applying coatings to the surgical needles are also provided. In the friction applying apparatus forcing the sliding members moving along guide rails for generating friction, the sliding member is made of a material having elastic modulus being 5000 MPa or less and Vickers hardness being 400 or more.