An earlier work by the present author questioned a concept of solid/liquid surface tension introduced by Thomas Young in 1805. The paper just preceding this one presents an explicitly computable example as supporting evidence by analogy that Young’s concept could be correct. The present note suggests a different view, and offers an alternative interpretation of the example.
This angular ball bearing retainer sandwiches a raceway surface (2a) with respect to an inner diameter surface of an outer ring (2), and has a retainer guide surface (2b) on one side in the axial direction and a counter bore (5) on the other side. A retainer (4) is a cylindrical shape having, in the middle in the axial direction, a plurality of pockets (6) for retaining rolling bodies (3). A weight increasing part (7) is provided extending further outward in the axial direction than a surface section to be guided (4a) which is to be guided by the guide surface (2b) of the outer ring (2) in the outer circumferential surface of the retainer (4). The outer circumferential surface of this weight increasing unit (7) constitutes a relief surface (7a) further separated from the inner diameter surface of the outer ring (2) than the surface section to be guided (4a).
The invention concerned a trackable golf ball (10) and a golf ball locating device (30). The locating device has a receiver configured to receive an electromagnetic signal from the golf ball and to determine from the received signal a distance and direction from the locating device to the golf ball. lt further provides and a display (32) giving an indication of the said distance and direction to a user. The locating device is configured to determine whether the distance is below a predetermined value.
A retractable ball caster device comprising a lug housing, a pivotable ball, which is mounted in the lug housing, a plurality of ball bearings, which are contained within the lug housing and contact the pivotable ball to allow its low friction rotation, and a motion mechanism that allows extension and retraction of the pivotable ball from the lug housing.
The invention relates to a ball socket for a ball joint, comprising a ball socket body (11), which comprises a ball socket opening (7) and a cavity (10) and a concave inner peripheral surface (8) extending around a longitudinal axis (13) extending in an axial direction (12) and which is divided along the longitudinal axis (13) into two ball socket body halves (15, 16), which are arranged one behind the other and transition into each other in a transition region (14) and each comprise an inner peripheral surface half (17, 18) of the inner peripheral surface (8), which inner peripheral surface halves extend around the longitudinal axis (13), wherein a first of the ball socket body halves (15) comprises a first of the inner peripheral surface halves (17), which lies on a ball surface (9) and is closed in the peripheral direction, and a second of the ball socket body halves (16) comprises the ball socket opening (7) and at least one slot (19) extending in the direction of the longitudinal axis (13) and a second of the inner peripheral surface halves (18), which is closed in the peripheral direction or is closed except for the slot (19), characterized in that the second ball socket body half (16) is designed in such a way that the second inner peripheral surface half (18) lies outside the ball surface (9) at least at an axial distance from the transition region (14).
The present invention relates to a roulette wheel apparatus, and in particular to a ball launcher for use in a gaming system such as a roulette wheel apparatus and roulette wheel apparatus comprising the ball launcher. The ball launcher comprises at least one launch tube having a non-circular cross-sectional contour for giving spin to the ball along its way through the launch tube.