Abstract: A gimbal-like device having an arbor for holding a circular saw blade mounted on an angled arm which is attached to a carrier plate which is pivotable about one axis and rotatable about another axis with the carrier mounted on a turntable for swinging the fixture about a third axis whereby the saw blade can be located at various angular positions for grinding or sharpening the teeth of the blade by a planar grinder such as a surface on a vertical grinding or sharpening wheel.

Abstract: The present invention is a grinding attachment (10) which can be utilized as either a belt grinder or a disc or wheel grinder. The attachment (10) includes a housing (14) enclosing a drive spindle (56) to which either a grinding wheel (114) or a contact wheel (62) can be mounted. If the apparatus is to be used as a disc or wheel grinder, the grinding wheel (114) is affixed. If the apparatus is to be used as a belt grinder, the contact wheel (62) is affixed. The apparatus can easily be interchangeably reconfigured between the two configurations. When in a belt grinder configuration, the attachment (10) includes means within the housing (14) for enabling the extension of the life of a grinding belt (52) by providing various idlers (70, 72, 78) about which the belt (52) can be fed in order to maximize the length of belt within the limited space provided by the housing (14).

Abstract: A saddle for use with a foot operated device, such as a bicycle, is disclosed. The saddle includes a support member for attachment to the foot operated device, a horn and separate left and right seat members. The support member is formed of a single piece of spring wire bent into a shape including a horn support section, a seat support section and a connecting section. The horn includes separate front and back rollers rotatable independent of one another on the horn support section of the wire. The portion of the wire in the horn support section, which support the rollers, has a free unsupported rear end. The seat members are supported so as to be capable of limited motion in three approximately perpendicular axes.