An adjustably opaque window including an external pane, an internal pane, a light transmission control layer and a shock-absorbing layer is provided. The external pane and the internal pane provide a cavity between them, and the light transmission control layer and the shock-absorbing layer are positioned in the cavity. The shock-absorbing layer is a flexible sheet that supports and protects the light transmission control layer. The light transmission layer consists of liquid crystal cells. The ...

The rolling bearing comprises a housing (10), rolling elements (20), at least one ring (30) in two ring parts (31, 32) freely mounted one inside the other and defining raceways (231, 232) on which roll the rolling elements, and an elastically yieldable prestressing device (50). This device is adjustable between two states, namely a first state in which an elastically yieldable member (53) exerts relatively no prestress for permitting the assembly and a second state in which the elastically yield...

An apparatus for adjustably profiling a cant comprising a first and second shaft rotatably mounted on a first and second frame, respectively. A first and second pair of laterally spaced apart profiling heads are slidably and rotatably mounted on the first and second shaft, respectively. Corresponding pairs of linear positioners laterally translate the first and second laterally spaced apart heads so that each profiling head in each pair of profiling heads may be independently translated relative...

An adjustably partitioned crib wherein at least one dividing rail is selectively and movably positioned between the two side rails, thereby dividing the crib into two separate areas for holding two infants. A further embodiment comprises two or more dividing rails for defining separated areas within the crib. Each adjustably positioned dividing rail is removably secured by locating pins with ball detent. A plurality of sliding drawers is affixed below the crib base.

A folding chair, which is foldably collapsible in a scissors-like folding operation, forms a long narrow bundle when collapsed, which fits into a tubular bag. The folding chair includes a pivotally jointed backrest support member which can be placed in various configurations to allow reclining movement thereof. The folding chair includes a frame assembly and a flexible hammock-type of fabric seat member which is mounted on, and supported by, the frame assembly. In a preferred embodiment, the fra...

A shuttlecock having a base and a flight portion, the base having a semi-spherical bottom and an upwardly extending side wall, with at least one length of tape having lengths substantially equal to a multiple of the circumference of the upwardly extending wall extending thereabout, the length of tape having a first side coated with a releasable pressure sensitive adhesive material and an opposite side forming a release surface for the releasable pressure sensitive adhesive material. The lengths ...

Disclosed are adjustably radially turnable shaft-guards for rotatable shafts and shaft-assemblies which extend from a stationary first-housing to a stationary second-housing. The shaft-guard, which surrounds the shaft or shaft-assembly, has telescopically associated tubes maintained in non-turning condition by yokes attached to said housing whenever the shaft or shaft-assembly is being powered thereby precluding injury to personnel. The telescopically associated tubes are slotted and by virtue o...

An adjustable clamp includes two overlying, interfitting, L-shaped members together with an anchor screw. A panel is held in an adjustable space between the arms of one portion of each L. The arms in the other portion of each L interfit through a set of interdigital bands and apertures formed in the respective arms. The interfitting arms are slideably adjustable relative to each other. The anchor screw, which can attach the clamp and held panel to a support surface such as a printed circuit boar...

A snowboarding boot having a flexible upper portion has one or more somewhat vertical elongate pockets on the surface of the upper portion to receive therein elongate, semi-rigid stiffening stays. Each pocket is formed of flexible material to define a medial channel having an open top and cross-sectional area similar to that of the stiffening stay to be carried therein to allow variable vertical positioning and positional maintenance of the stiffening stays by reason of frictional engagement wit...

To be situated between a mattress and a box spring is a hinged frame that includes inflatable bags located respectively beneath the head and foot portions of the mattress. A controlled pump unit permits selective inflating of the bags so as individually to elevate the different portions of the mattress at the command of a user. Construction features of one version include internal contour-defining elements tied between space-opposed supports affixed to the walls of the bags and double-plate supp...