Abstract: A sawbenching assembly for reworking a sawblade supported by an anvil to flatten the sawblade is provided. The assembly includes an articulated tool arm with a tool arm support, and a scissors linkage arm having first and second ends, the first end pivotally connected to the tool arm support for rotation about a first axis, the second end vertically movable. The assembly also includes a user-operated actuation device connected to the articulated tool arm, and a hammer assembly pivotally connected to the second end of the scissors linkage arm for rotation about a second axis and vertical movement with the second end of the scissors linkage arm, the hammer assembly having a user-actuated hammer with an impact surface positionable at positions on the sawblade by three-dimensional manipulation of the hammer assembly supported by the articulated tool arm. The user-actuated hammer is actuated in response to engagement of the actuation device.

Abstract: A sawbenching assembly for reworking a sawblade supported by an anvil to flatten the sawblade is provided. The assembly includes an articulated tool arm with a tool arm support, and a scissors linkage arm having first and second ends, the first end pivotally connected to the tool arm support for rotation about a first axis, the second end vertically movable. The assembly also includes a user-operated actuation device connected to the articulated tool arm, and a hammer assembly pivotally connected to the second end of the scissors linkage arm for rotation about a second axis and vertical movement with the second end of the scissors linkage arm, the hammer assembly having a user-actuated hammer with an impact surface positionable at positions on the sawblade by three-dimensional manipulation of the hammer assembly supported by the articulated tool arm. The user-actuated hammer is actuated in response to engagement of the actuation device.

Abstract: An apparatus and a method for controlling the amount of solar energy and heat transferred into and out of a building or other structure through a glazed opening using a system of pneumatically actuated, reflective shutters. The air discharged from the blower flows through a venturi. The venturi communicates with a system of inflatable, reflective shutter elements. A control valve downstream from the venturi regulates airflow through the venturi. A photoelectric sensing element is installed at the level of the growing plants. The electric current generated by the sensing element is proportional to the intensity of the sunlight entering through the glazed roof. The control valve is operated by an electrical control means which responds to the electric current generated by the photoelectric sensing element.

Abstract: A selected number of troughs containing small plants therein are placed in a parallel relation with each other at one end of a soilless growth chamber. Tubular screw sections having helical grooves therein are employed for advancing the troughs from the loading end of the chamber to the unloading end thereof, the helical or screw pitch being considerably greater at the unloading or harvesting end in order to accommodate for the increased size of the plants as they reach maturity. In other words, the pitch of the helix is correlated with the rate at which the plants mature. Tubular screw sections having different pitches can be substituted when the growth rate differs from one species to another.

Abstract: A selected number of troughs containing small plants therein are placed in a parallel relation with each other at one end of a soilless growth chamber. Tubular screw sections having helical grooves therein are employed for advancing the troughs from the loading end of the chamber to the unloading end thereof, the helical or screw pitch being considerably greater at the unloading or harvesting end in order to accommodate for the increased size of the plants as they reach maturity. In other words, the pitch of the helix is correlated with the rate at which the plants mature. Tubular screw sections having different pitches can be substituted when the growth rate differs from one species to another.

Abstract: In a chamber for cultivating plant growth, a plurality of light fixtures are employed, each containing a high intensity discharge lamp. The bulb of the lamp serves as an inner transparent wall and a globe functions as an outer transparent wall. In the space between the bulb and globe water is caused to flow in order to remove unwanted radiation and heat generated by each lamp before the radiation is transmitted into the growth chamber.

Abstract: A package combination for storing and preserving a living plant such as lettuce. A bag, formed of a plastic material, is inflated with a gaseous medium. A living plant having an absorbent block attached to its root system, is placed within the bag in such a manner that the block absorbs moisture which condenses within the bag, and makes it available to the plant.

Abstract: An apparatus for intermittently pushing a plurality of aligned carts along a predetermined path. The apparatus includes a pair of oscillating pusher bars having a plurality of aligned lugs thereon, which engage a portion of the undersurface of the carts and push them forward as the bars move in a forward direction. As the pusher bars move in the opposite direction, the lugs disengage from the cart, so as to permit the cart to remain stationary.

Abstract: An installation for continuously growing plants which includes one or more growth chambers wherein alternate periods of lightness and darkness are provided, and the environmental conditions are controlled. The plants are individually supported, and transported through the growth chambers in such a manner as to require a minimum amount of handling. A diverging track system is provided in one of the growth chambers for handling the plants in a prescribed manner and guiding them through the chamber. As the plants are moved through such chamber, increased space is automatically provided for plant growth. The installation is well suited for growing plants hydroponically.