Abstract: A protective helmet comprising a shell, and liner means positioned on the inside of the shell for absorbing impacts applied against the helmet. The liner means has a plurality of fluid-filled chamber means generally aligned intermediate the wearer's head and the shell, with at least two of the aligned chamber means being deformable in differing amounts responsive to a given force level applied against the helmet.

Abstract: A protective helmet comprising a shell, and flexible liner means positioned in the shell to dissipate forces applied against the helmet, with the liner means having fluid filled chamber means and a plurality of openings extending through the liner means. The helmet also has a plurality of resilient pad means positioned in the openings with at least a portion of the inner surfaces of the pad means being spaced from an inner surface of the liner means.

Abstract: A protective helmet comprising, a shell, and liner means of a flexible material having fluid filled chamber means and a relatively soft inner surface for contacting the wearer's head. The helmet also has a second liner of resilient material positioned intermediate at least a portion of the liner means and the shell.

Abstract: A knife assembly adapted for cutting thread utilized in a sewing machine including first and second levers each having first and second end portions and a medial portion therebetween, the first end portion of the second lever defining a first cutting blade portion, first means at the second end portion of the second lever for mounting the second lever for pivotal movement, a link having first and second end portions and a medial portion therebetween, the first end portion of the links defining a second cutting blade portion cooperative with the first cutting blade portion for cutting a thread therebetween upon relative pivoting motion between the link and the second lever, second means pivotally connecting together the medial portions of the link and lever, and third means pivotally connecting together the first end portion of the first lever and the second end portion of the link whereby motion imparted to the second end portion of the first lever creates the latter-mentioned relative pivoting motion between

Abstract: A heavy duty hinge construction for lidded vessels such as coffee pots, sugar bowls and the like, particularly suited for restaurant and other commercial environs, and adapted to withstand substantially continued use, while permitting substantially 180.degree. pivotal movement of the lid to enable washing with automatic equipment.

Abstract: A presser foot, for a sewing machine for use in sewing slide fasteners to garments, has a foot portion pivotally mounted on a vertically movable presser bar of the sewing machine, gripping members pivotally mounted on the foot portion and cooperating with the latter in forming guide grooves for receiving and guiding element rows secured to the slide fastener tapes, and a spring member fixed to the foot portion and engaging with the gripping members to normally bias the latter toward the foot portion in a direction to narrow the guide grooves.

Abstract: A folded structure having utility as the base structure for fanciful novelty structures. The structure is comprised of a base sheet and four outer sheets. The base sheet has eight alternate convex and concave folds. The four convex folds pass through the center of the base sheet and the midpoint of the four sides of the base sheet. Four concave folds pass through the center of the base sheet and through each of the four corners. Four smaller outer sheets are connected to the outer edge of the base sheet. The outer sheets are bisected by convex folds extending outwards from the four respective corners of the base sheet. The resulting structure is a hingeable, flexible, easily-opened structure that can be folded flat making it a useful base for novelty structures.

Abstract: A hand covering, such as a glove, is provided having a ventilating system with an air chamber which is valve controlled to pump air in one direction past the fingertips of the user upon flexing of the hand.

Abstract: To prevent the wear of, and noise production by, the opposed or abutting ends of knuckles on a pair of hinge leaves, a pair of rings of wear resisting material are interposed between the opposed ends of each two adjacent knuckles, with a pintle passing through the knuckles and rings. The rings have pairs of fingers gripping the opposed marginal edges of the leaves, respectively, so that the paired rings rotate relative to each other with the swinging movement of the leaves. Each ring with its pair of fingers is exactly flat and is therefore manufacturable by punching from sheet metal, plastic or the like.

Abstract: This disclosure relates to a concealed hinge for furniture doors and incls at least three hinge elements, a first element being carried by the frame, a second element being mounted at one end for sliding movement relative to the first element and being pivotally connected at an opposite end to a door, the third element being pivoted to the first element and to the second element, and latch means pivotally connected to the third element by the pivot connection between the second and third elements. The latch means is preferably spring biased toward its latched position and is preferably U-shaped as viewed in cross-section. A fourth hinge element is pivotally connected between the door and the third hinge element and the latch means latches upon the pivot between the door and fourth hinge element.

Abstract: A plurality of interlocking reinforced barrel shaped plastic torso fitting embers has a transparent vented plastic head piece threadedly connected thereto. The torso members are suspended and attached to the wearer by adjustable strapping. Compliant material is used intermediate the shock resisting members and the wearer to help position the armor on the wearer and to attenuate the transmission of blast shock waves from the armor to the wearer. The openings in the armor, to accommodate the wearer's appendages, are hermetically sealed by a lining made of rubber material. Air for breathing is brought into the helmet and exhausted therefrom by intake and exhaust check-valves which are actuated by the wearer's normal breathing.

Abstract: A machine for turning pillowcases and similar articles comprises a conveyor for feeding a pillowcase to a table, a photo electric cell or cells for stopping the conveyor and positioning the pillowcase on the table from the first photo electric cell to the second, a presser foot and gripper arm for entering the open end of the pillowcase, an anchoring arm for clamping the forward end to the table, a pair of stretching and spreading arms over which the presser foot lifts the upper layer of the pillowcase while the lower layer is clamped to the table and a pair of arms engaging the pillowcase intermediate the stretching and spreading arms to move the trailing end of the pillowcase relatively to the open end to evert the pillowcase and upper arms to grip the closed end of the pillowcase and withdraw it from the stretching and spreading arms everted and right side out.

Abstract: A household flatplate ironer comprising two cooperating pressing plates, the upper one of which is lowerable onto the lower one by means of a supporting arm and a counterpoise, is provided with means for re-opening the ironer automatically after it has remained closed for a predetermined period of time, thus affording an article of laundry being ironed to cool off without suffering damage from overheating.

Abstract: A dryer and shaper support for clothing which is particularly adapted for drying and shaping amputee stump socks; the unit includes a frame having means for hanging the frame, a downwardly extending rounded, perforate lower portion, and horizontally disposed opposed clamps acting against the top of the frame; in a preferred embodiment the frame adjusts vertically and laterally to accommodate different size garments and the lateral adjustment is held by friction of the clamps.

Abstract: Apparatus for opening and spreading the legs of a seam joining two fabric parts, preparatory to the pressing of the legs of the seam, comprising a first rail having an edge against which the legs of the seam are to be guided, a second rail parallel to the plane in which the pressing is to be effected and having an edge against which the sewn together fabric parts are to be tensioned, the edge of the first rail being spaced from the edge of the second rail toward the center of the second rail by a distance at least equal to the length of one of the legs, the edge of the first rail extending at an angle of from 60.degree.-90.degree.

Abstract: A pipe joint between a pipe of reinforced plastic and a second pipe, which may be metal or plastic, and which may have a peripheral shoulder with the plastic material of the first pipe overlapping and interlocking with the shoulder.

Abstract: A device for folding a shirt includes a stiffening panel about which the shirt is adapted to be folded. The stiffening panel has a slit for insertably receiving a sleeve of the shirt such that the slit is operable to clampingly fasten the shirt to the stiffening panel and thereby obviate the need for pins.

Abstract: An athletic shoe intended for use on a synthetic turf is constructed of a resilient plastic and has a sole that is constructed with a plurality of cleats uniformly spaced in both the ball area and heel area of the sole. The sole is also lined with spaced peripheral cleats that are shorter in height than the other cleats and include two elongated cleats at the front and back, respectively, of the sole.

Abstract: A lock hinge preferably, but not exclusively, for use with a hatch cover structure for a transportation vehicle. The lock hinge comprises a latch bracket and a base bracket. The base bracket is provided with a pivot bar. The latch bracket has a saddle member defining a hinge seat with a mouth opening for receiving at least a portion of the pivot bar therein. The latch bracket further is provided with a latch member having a lever end and a gate end. The latch member is interconnected to the saddle member by a flexible plate whereby the gate end is displaceably positioned adjacent the mouth opening of the hinge seat to retain the pivot bar captive in the hinge seat to interconnect both the latch and base brackets. When secured to a hatch cover, which normally closes the hatch opening in a wall of the vehicle, at least one lock hinge is secured on a respective one of a pair of opposed sides of the cover.

Abstract: A simulated tricorn hat is produced including a body of thin plastic, including a brim, a riser and a crown. The brim is designed to flex against the riser of the hat near the crown at three generally equally spaced points. Means are provided on the brim to extend through apertures in the riser to hold the brim against the riser at the three equally spaced points.