Abstract: Headwear includes a crown of planar fabric panels sewn together in-plane, a brim and a size adjuster of a strip of fabric on a lower portion of the crown, around an entirety of a circumference of the crown or a part of the circumference of the crown. The size adjuster includes, in a space defined by a casing formed by the strip of fabric, a shape-changeable component that, at heat of a predetermined temperature or higher, is configured to soften and extend in a circumferential direction of the crown by a length that is greater than a length by which the shape-changeable component extends at heat lower than the predetermined temperature, in response to a tensile force applied to the shape-changeable component in the circumferential direction of the crown. The fabric panels have a contour and a mesh formed by cutting fabric on a bias.

Abstract: Headwear includes a crown of planar fabric panels sewn together in-plane and a brim. The headwear includes a size adjuster of a strip of fabric provided on the lower portion of the crown, around the entire circumference or part of the circumference of the crown. The size adjuster includes, in a space defined by a casing formed by the strip of fabric, a shape-changing component that extends in the circumferential direction of the crown by a predetermined length by heat of a predetermined temperature or higher. Each of the fabric panels, the strip of fabric, or each of the fabric panels and the strip of fabric has a contour and a mesh formed by cutting fabric on the bias. At least one of the following are sewn together using elastic thread: (1) the fabric panels; (2) the crown and the brim; and (3) the crown and the size adjuster.

Abstract: A magnetic field sensor housed in a cooling device has an inner core body for measuring the behavior of a charge put in a shaft furnace, an inner casing for accommodating the inner core body therein, and an outer casing for accommodating the inner casing with a space for a circulating path of cooling medium therebetween. The inner core body consists of an exciter for exciting the charge put in the furnace, a magnetic field sensing member arranged in front of the exciter for detecting the exciting magnetic field generated from the exciter and a driving circuit arranged at the rear of the exciter for driving the sensing member.