Abstract: Systems, assemblies, apparatuses, and methods herein may provide an enhanced fluid seal between two components. A seal may include an annular seal body having a groove face, a sealing face opposite the groove face, a first lateral face, and a second lateral face opposite the first lateral face. The groove face may have an at least partially convex groove edge, and the sealing face may have an at least partially concave sealing edge and a protrusion. The first and second lateral faces may be oblique with respect to one another, and the groove face, the sealing face, the first lateral face, and/or the second lateral face may cause the seal to deform in a groove of a first one of the two components when a second one of the two components presses against the sealing face, thereby to enhance the fluid seal between the two components.

Abstract: A cementing swivel includes an outer stationary member having a cement port, an inner rotating member with a bore therethrough, and a torque indicating member coupled to the outer stationary member and configured to provide a visual indication that a predetermined torque load has been reached.

Abstract: An electronic home knitting machine which functions pursuant to patterning instructions on a program card and in response to the operation of control devices by an operator causing needle actuators on the carriage of the machine to be selectively operated and fabric unit in a prescribed manner on the machine is provided with an acutely discriminating adaptive card reader for detecting instruction marks on the card and means operable to indicate to an operator an error in the reading of the card.

Abstract: A home knitting machine is provided with electronic control means which function pursuant to patterning instructions on a program card and in response to the operation of control devices by an operator causing needle actuators on the carriage of the machine to be selectively operated and fabric knitted in a prescribed manner on the machine.BACKGROUND OF THE INVENTION1. Field of the InventionThe invention relates to automatic knitting machinery and has particular application to home knitting machines which can be programmed to produce prescribed patterns on a fabric.2. Description of the Prior ArtAutomated home knitting machines are now well known and are exemplified by the machines of the following Patents and applications:U.s. pat. No. 3,885,405 -- issued May 27, 1975French Pat. No. 2,212,830 -- Reg. July 23, 1972Japanese Application No. 85853, laid open Nov.

Abstract: A home knitting machine is provided with electronic control means which function pursuant to patterning instructions on a program card and in response to the operation of row controlling switch means by an operator causing needle actuators on the carriage of the machine to be selectively operated and fabric knitted in a prescribed manner on the machine.