Abstract: A plant protective fender for use with earth working machines such as rototillers comprises, in one embodiment for use with machines having rear-mounted tines, a support member fixedly attached at a selectable distance from the frame of the machine and a pair of guard members depending from the support member. The guard members extend from the support member to the housing of the earth working members of the machine, and are attached to the housing at a fixed selectable height. In another embodiment for use with machines having front-mounted tines, the guard members are attached at a fixed selectable point to an attachment member rotatably inserted into the tine shaft and extended forwardly the tines and rearwardly to attachment brackets for attachment to the machine depth gauge.

Abstract: A semi-jacketed molded bullet having means integral with the bullet core for preventing separation of the core from the jacket is disclosed. The bullet is particularly adapted for use in revolvers and comprises a cup-shaped jacket having a small hole in the bottom portion. A small portion of the bullet core material extends through the hole and forms a retaining flange exterior a portion only of the bottom of the jacket. In one embodiment, an annular member having a diameter slightly larger than the jacket is provided behind the jacket and held in place by the retaining flange of core material. The method of construction of the bullet of this invention comprises placing the jacket member into a bullet mold with the hole in the base facing upwardly, placing the annular member, if desired, upon the jacket base, and pouring molten core material through the opening to fill the mold and produce a small degree of over-flow to form the retaining flange.

Abstract: A bio-feedback method for training persons in the self-regulation of physiological functions by means of displaying to the person a continuous representation of a value of such physiological functions upon, and together with, a metric which is continuously and automatically variable as a function of such values and the rate of change of such values so as to provide to the person a display in which changes in the physiological function are highly resolvable and therefore easily noticed, and apparatus for practicing such method and disclosed. Means are also optionally provided additionally displaying a target or goal to which the person is to attempt to direct the value of the physiological function; the target is automatically adjusted as a function of the value of the physiological function in such manner that it appears that the target is attainable, but is readjusted to prevent actual attainment of the target. If desired, the target may used without the automatically adjusted metric.

Abstract: Apparatus for use in conjunction with material handling equipment having a pivotable working member, and comprising cooperatively lever acting extension members attached to opposite sides of the pivotable working member of the material handling equipment is disclosed. One extension member is flexible, and the other is rigid. The rigid extension member is attached to the equipment working member through a hinge mechanism. The hinging of the rigid extension member, in combination with the flexibility of the other extension member, protects the material handling equipment from damage by large mechanical impulses to which the extension apparatus may be subjected in use. An extension apparatus working member is attached to the rigid extension member. In one embodiment, the extension apparatus working member includes a wrecking member, such as a wrecking ball. In other embodiments, the extension apparatus working member may be a hook, tongs, a magnet, a splitting wedge, or the like.

Abstract: A manipulation puzzle consisting of rigid or semi-rigid components is disclosed. The puzzle is solved by manipulating the components through a specific sequence of movements, in predetermined order, in accordance with a code employed in the construction of the puzzle. Various interacting components are interchangeable, thereby providing for the construction of "families" of puzzles. The puzzle comprises a plurality of ring members disposed to form a cylinder about a plurality of longitudinal slide members forming an interior cylinder on a common axis with the ring members. The solution is programmed into the elements by a series of pegs on one set of members, and a cooperative set of grooves on the other set of members.

Abstract: An environmental control system for improving the energy efficiency of structures is disclosed. A structure having a heating and/or cooling plant, of any conventional type, is improved by providing, in each subdivision of the structure, such as a room, a temperature sensor, and an occupancy sensor. The outputs of the temperature and occupancy sensors are received by a control subsystem whose output is a composite function of the output signals of the occupancy and temperature sensors and which controls the heating and/or cooling system of the structure to maintain each room at a first temperature when the room is occupied, and at a second temperature when the room is unoccupied.

Abstract: An apparatus for indicating to the operator of a following vehicle that his headlights are operating in the high beam mode is disclosed. A light reflective surface is provided for mounting on the rear of a vehicle and is positioned so that when a following or trailing vehicle is being operated with its headlights in high beam mode and the trailing vehicle is sufficiently close to the lead vehicle, a small portion of light from the high beams will be reflected backwardly, substantially in the direction of the course so as to provide a warning indication to the following vehicle that he is too close for high beam operation. During normal or low beam operation by the following vehicle, the position of the apparatus is such as to give little or no reflection.

Abstract: Apparatus for improving the efficiency of swimming pool skimmers in cleaning the surface of water in swimming pools of particulate debris are disclosed. The apparatus of this invention includes a mounting bracket adapted to be permanently installed at the wall of a swimming pool, in one embodiment at the intake aperture of a swimming pool skimmer, and having therein a slot configured to receive therein an elongate prismatical member. The slot is so configured that when the prismatical member is inserted therein, the prismatical member is held rigidly in the water of the swimming pool at an angle to the wall of the swimming pool and a depth in the water of the swimming pool to substantially increase the rate of capture of the water surface debris by the skimmer. The prismatical member has a height dimension selected to prevent debris from either splashing over the top thereof, or tunneling through laminar flow paths beneath the prismatical member.

Abstract: Apparatus for use in conjunction with material handling equipment to provide for protection of overhead cables from damage by such material handling equipment being operated thereunder is disclosed. Material handling equipment having pivotably connected arms and hydraulic means for causing relative motion between such arms about their pivot point is provided with a substantially continuous bumper comprising at least two guard members. One end of a first guard member is attached to one arm and one end of a second guard member is attached to the arm pivotably connected to the first arm. A sheath slidably receiving the second end of one guard member is provided to provide for bumper length adjustment as the arms pivot. The second end of the other guard member is so disposed to complete a substantially continuous bumper. Various modes of attachment are employed in several embodiments of this invention.