Abstract: The invention relates to a heat reflective film for the construction industry, comprising a base film containing polyurethane, characterized in that the base film is damped on both sides with a metallization coating. The heat-reflective film can be diffusion open or diffusion closed.

Abstract: A pressure regulating module for a sewing machine, the module supporting a pressure regulating cam, and a cam follower mechanism for cooperative engagement with the cam, the cam follower mechanism having a laterally extending ear impressed with a spherical surface impinging against a platform on a plunger slidably received in a bore in a presser bar of the sewing machine, the plunger being in abutment with a compression spring also received in the bore. The spherical surface, plunger, compression spring and presser bar are in substantial alignment when the module is assembled to the sewing machine frame. The cam includes a darning position where little or no pressure is applied to the presser bar, by which assembly to the sewing machine frame may be facilitated.

Abstract: A locking device for a top cover on a bracket arm of a sewing machine which employs a latching device of which the retractable bolt is associated with a thread guiding member shiftably supported on the bracket arm and projecting exteriorly thereof. When the cover is in place there are no visible latching devices or fastenings to detract from the overall appearance of the sewing machine.

Abstract: A needle bar reciprocation interrupting device is disclosed in which the interruption is effected by a solenoid at any lateral position of a needle in an arrangement wherein an upper end of the needle bar is swung in an arc with an intermediate portion of the needle bar supported in a ball and socket joint structure to result in lateral positioning of the needle. An unlatching frame is carried by bearings within which the needle bar undergoes endwise reciprocation thereby to move laterally with the needle bar. A solenoid supported on a bracket affixed to the sewing machine frame has its armature connected with a fork extension of the unlatching frame closely adjacent the ball and socket joint structure. When the solenoid is activated the unlatching frame is pivoted to swing a ramp portion thereof into engagement with a needle bar carried latch at the end of upward needle bar travel thereby to separate the needle bar from its endwise reciprocating drive mechanism when its velocity is close to zero.