Abstract: An apparatus is set forth for the aesthetic assemblage of components including plate members and elongate rods. The plate members include parallel, orthogonal, and angulated side surfaces in containing various apertures therethrough including orthogonally extending apertures relative to the upper and lower surfaces of each plate, angulated apertures oriented non-orthogonally to the upper and lower surfaces of each plate, and blind bores formed in a non-through-extending manner relative to the plates for receiving the respective rods to assemble the various plates and rods in a creative assemblage for educational and creative development of individuals.

Abstract: A construction set suitable and safe for children of various ages comprising construction pieces and connector strips. The construction pieces have a semirigid planar construction with opposing major sides which have hook fastener material disposed on one side and loop pile fastener material disposed on the other. The fastener materials are of the type which adhere when pressed together. An outer border or margin area of the construction pieces is kept free of the fastener materials, to provide a tab or hem for separating attached pieces. The construction pieces have various shapes and sizes with which many designs and structures may be constructed. The connector strips have a similar construction to the construction pieces and are used to join adjacent construction pieces. The sides may include complementary colors and patterns.

Abstract: A modular construction which is suitable for use as a pen holder is fabricated from a plurality of flat board members detachably connected to each other by connecting members having a plurality of wing pieces disposed at a suitable angle relative to each other and provided with board member receiving grooves. The board members and connecting members may be assembled into a holder having at least one tubular compartment having a bottom member detachably secured therein. The shape of the various compartments can be varied by changing the angle between the wing pieces of the connecting members and some connecting members may be provided with upwardly and downwardly opening grooves for assembling a two tiered structure of board members.

Abstract: An animal containment system is designed to be constructed in any size desired for housing birds and animals. Primarily, it consists of an assembly composed of a plurality of enclosures that are constructed of interlocking frames that include panels that may be removed for cleaning purposes when soiled. Connector cleats are also provided for firmly securing the assembly together.

Abstract: A construction apparatus has a plurality of relatively flat components having at least three sides, an elongated rod-like member extending along each side and enlarged corner portions between the members. A plurality of connectors is provided for connecting together adjacent sides of adjacent members to form structures. Each connector has a pair of recesses shaped to releasably embrace adjacent pairs of members. The recesses of each connector open outwardly in a common direction so connectors may be positioned on pairs of members without altering previously formed portions of the structure.

Abstract: A building pad of rectangular construction having a pair of pockets extending through the longitudinal sides thereof. The ends are closed and an identical pad is attached thereto having a pair of pockets extending through the sides thereof. Tabs are insertable in any of the pockets for attaching a similar pad edge-to-edge or side-to-side thereto. Photographs are insertable in the outermost pockets.

Abstract: A toy building block set suitable for assembling articles of play includes ring like block elements with a circular inner periphery and a polygonal outer periphery with straight side faces. A sixteen-sided polygonal block is provided with square dovetail connector and socket elements arranged on the side faces for connecting the block elements together. Other side faces of the block elements are provided with vertical dovetail chutes for co-operation with elongate stacking members having elongate dovetail projections. The block elements are thus able to be arranged in stacks on the stacking members for storage and transportation. Lashing points are provided on the stacking member ends for accepting a lashing means to secure the stack positively, and several stacks of block elements can be lashed together for packaging large sets of blocks. Different embodiments are presented. In one embodiment the block elements are provided with snap-fit socket elements.

Abstract: An environment protecting dike assembly is disclosed comprising interlocking, plastic, wall shaped components which can be erected as a dike wall around storage tanks or other liquid containing vessels. The components of the assembly are of modular construction, permitting dikes of different configuration and size to be constructed. When erected on a liquid impermeable substratum such as earth covered with plastic sheeting, the assembly forms an effective liquid barrier, preventing liquids contained within the assembly from escaping, as, for example, in the event of a storage tank rupture.

Abstract: A modular building block characterized by a male-female fastener arrangement between successive layers of blocks, i.e. the blocks are positively positioned by a pattern of locking tabs cooperating with slots. Each modular building block is compartmentalized for receiving insulative material and space for utility passage. Provision is made for readily securing the modular blocks onto a conventional footing and/or foundation. Corners and block staggering between successive layers are effectively achieved through choosing the appropriate pattern presented by the aforesaid male-female fastener arrangement. The modular building blocks are rigid, yet light in weight, due to fabrication material selection.

Abstract: A small animal exercise maze comprises a multiple compartment structure formed of a pluralty of wall panels secured removably at their inner ends to a support base and joined together at their outer ends by clips which secure together the outer ends of adjacent wall panels. Passageway openings are provided through selected common walls of adjacent compartments to form a maze path for an animal to move to and from a specialized compartment provided by omitting selected interior wall within the unit. An animal exercise wheel is mounted within the specialized compartment and the latter is closed by an approriately dimensioned closure wall.

Abstract: The disclosure relates to a construction panel system for the erection of doll and play houses, mazes, etc., and comprises a series of connected rectangular panels of approximately the same size connected together so that each panel can be rotated with respect to an adjacent panel but at least two of said panels are connected to adjacent panels by double hinges of the Jacobs ladder type so that they can be rotated in two directions with respect to adjacent panels and at least one additional panel is connected to the Jacobs ladder type so that it can be rotated in two directions with respect to said adjacent panel and at least one additional panel as connected to the Jacobs ladder panels by a hinge having its axis at right angles to the Jacobs ladder hinge. The panels are provided with holes adjacent the corners thereof and a fastening and reinforcing means is provided for holding non-connected panels together.

Abstract: The invention discloses a panel section interconnecting member adapted to be used in the construction of shelf structures or shelf-like furniture. It comprises a generally rectangular base plate member of essentially flat configuration, one surface thereof comprising four generally tetrahedrally shaped supporting members protruding therefrom. First side walls of the supporting members are arranged essentially parallel and with a certain distance to second side walls of an adjacent supporting member, defining therebetween receiving channels adapted to receive horizontal and vertical panel members of a shelf structure to be erected. The so-formed channels thereby have an essentially cross-like configuration and the base plate comprises a central opening provided in the center of said cross for receiving a mounting screw or the like mounting member to mount the interconnecting member to a wall.

Abstract: Hollow blocks formed of corrugated cardboard, for example, have top edge openings receiving inverted U-shaped connectors for joining successive blocks together in a row or course and end slots together with top center slots receiving T-shaped connectors that include locking means for joining stacked rows or courses together.

Abstract: This invention is a structure encompassing a large volume of area used for traffic delineators, warning and instruction signs, and the like. It is characterized by being formed from materials specially formed and hinged in such manner as to be collapsible for storage and transport when not in use. The structure and the method involved comprises a multiplicity (preferably three) of flat items hinged together in an angular relationship to one another when assembled, to encompass a large volume, but at the same time, so as to collapse into a single flat configuration for storage and transportation, by folding two panels to opposite sides of a center panel.

Abstract: A set of polygonal panels with novel interlocking flaps for the construction of various structures, such as buildings desk sets and the like. The panels are shown as rectangular and triangular, for illustration purposes, but may be of other polygonal shapes. Each panel has flaps along its sides, each flap having a wide central slot and two narrow adjoining side slots. When flaps of adjacent panels are placed in superimposed matching relationship, a pair of locking elements having radial grooves are introduced singly into the center slots and are separately moved into the side slots to firmly lock the adjacent panels by two locking elements, one in each of the side slots.