Flat bottom track. Laboratory tests on experimental and other spring clips suitable for fastening flat bottom rails to S.T. baseplates (E-045)

Report No. E.14, dated 23rd February, 1952, gave test results on two types of clips, the Standard, and one known as the Woodhead Toledo Spring Clip. It revealed that the standard clip was being highly stressed and that though the stresses in the Woodhead Toledo Clip were not excessive, this...