Abstract: The invention relates to computer systems, and more specifically to a method and apparatus for inserting and storing server units in a rack-mounted computer. In one embodiment, the system includes a cabinet comprising a plurality of rails. The system also includes a rack that is coupled to the rails for receiving the server units. A mounting latch is pivotally coupled to the server unit, the mounting latch including a fastener that is securable to the rails.

Abstract: An embroidery frame includes of an outer frame attached to a driving unit of a frame drive mechanism, and an inner frame that cooperates with the outer frame to hold a work cloth therebetween. An engaging recess is provided on at least one of the outer frame segments of the outer frame other than that including a split portion, and an engaging protrusion capable of engaging with the engaging recess is formed in at least one of inner frame segments of the inner frame. Thus, the user is able to easily determine the front and rear sides of the outer frame. Even if the user places the inner frame upside down by mistake, the inner frame cannot be uniformly fitted in the outer frame due to the presence of the engaging protrusion, thus notifying the user of the mistake in the orientation of the outer frame and inner frame.

Abstract: A sewing machine includes a needle bar rocking mechanism for rocking a needle bar in a direction crossing a direction in which a workpiece cloth to be sewn is fed, a thread tension applying mechanism for applying tension to a needle thread supplied from a needle thread supply to a sewing needle mounted on the needle bar, a thread tension releasing mechanism operating the thread tension applying mechanism so that the needle thread is released from the tension applied to it by the thread tension applying mechanism, and a single rotary actuator for driving both of the needle bar rocking mechanism and the thread tension releasing mechanism.