Abstract: An improved golf putter includes a putting face with a plurality of fine spring wires extending outward therefrom. Each of the spring wires includes a substantially horizontal initial leg portion extending outward form the putter face and an angled leg portion which extends upward and outward away from the initial leg portion. As the putter is swung, the angled leg portions spring inward and then upward and outward due to contact with the golf ball. This spring action simultaneously imparts both a forward and a topspin motion to the golf ball. The wires can be attached to an insert which is replaceable and interchangeable. Inserts with wires extending at differing angles can be provided to counteract a player's tendency to close or open the putter face during a putting stroke. A protective molding can be provided for surrounding and protecting the spring wires.

Abstract: Strong, light weight master cylinders for hydraulic braking systems are produced by incasing a section of steel tubing within a diecasting of metal such as an alloy of magnesium or aluminum. Master cylinders can thus be produced by diecasting the metal in situ around the tube so that it incases the exterior surface and extends over one end thereof. Tooling requirements are minimal, with little if any machine being needed following the diecasting operation. Unit production cost is thus lower than that of castings made with permanent molds. Light weight diecastable metals can thus be used in combination with strong but relatively thin steel tubing to provide durable master cylinders that are lighter, simpler and less expensive to make than cast iron cylinders.

Abstract: A cylinder lock assembly includes a tubular housing rotatably receiving therein an elongated unitary barrel having a configuration suitable for single step diecast fabrication without the extremely complex coring and secondary operations heretofore required. The barrel contains a plurality of easily diecast and assembled, open sided tumblers in face to face sliding engagement, each of which is individually engaged by a finger of a unitary, multi-fingered resilient member for urging the respective tumbler into a locked position until displaced by a key moved transversely through a slot formed in each tumbler. Modified forms include a dust door receiving cavity which has a dust cover integral with the barrel and a dust door closing spring integral with the tumbler contacting resilient member. Also, simplified structures are provided to retain the barrel in the housing.