Abstract: An optical system for use within a copying machine of the type in which sequential line portions of the original document are illuminated and the light therefrom is reflected by a primary mirror onto an objective element which, in turn, forms a focussed image on a copying drum which rotates in synchronism with the motion of the illumination. In order to provide copying capability at another ratio of reproduction, the primary mirror is made pivotable. In its second position, it reflects the light from the illuminated line portion onto a first supplemental mirror which reflects it onto a second supplemental mirror that directs it to a second objective element. The second objective element forms a focussed image on the copying drum, that image being of different size but located at the same edge of the copying drum as the image from the first objective element.

Abstract: A support having a hoist for raising and lowering articles from one elevation to another in which one portion of the support is a ladder.

Abstract: A movable spray guard to be lowered alongside the ground engaging wheels of a vehicle including a flexible screen mounted in a track and moved by a motor driven chain from an operative position to an inoperative retracted position.

Abstract: An attachment for use on a camera to make it possible to make photo montages by taking separate pictures on different areas of the same film, embodying a matbox comprising a box to be secured to the camera lens having hinged blinds to selectively mask portions of film in the camera so that the masked portion of the film will remain unexposed until, by operation of the blinds, the formerly masked portions are selected, and further pictures may be taken without reference to the first picture which is masked.

Abstract: The invention relates to a system which automatically cleans the grates or bars on a vibrating bark, sawdust and material conveyor. It does this by moving the teeth which are disposed on an oscillating cleaner back and forth from the bottom side of the grate or bar network in a raking action. It changes direction automatically at each end of travel.

Abstract: The disclosure relates to burners with a burner nozzle and a primary air nozzle, the nozzles being jointly axially offset in relation to a secondary air nozzle. The primary air nozzle is in the form of, or is mounted to, an elongate tube which, in its turn, is shiftably mounted on and extends through an openable scuttle and a coronal portion, located inside the scuttle, of a primary air supply duct. The tube is axially shiftable between an operative position and an inoperative position. The burner and its burner nozzle are mounted in the elongate tube and are disposed, together with the tube to move as a unit out from the coronal portion on opening of the scuttle. The elongate tube has at least one air passage which, in all adjustment positions of the tube, maintains communication between the primary air nozzle and the coronal portion of the primary air supply duct.

Abstract: A self-supporting modular switchboard panel formed from a plurality of rectangular frame elements with four solid side faces. The corner edges are beveled to provide a 45.degree. angle with the side faces so that when four frame elements are placed together to form a rectangular section, the center thereof forms a square which serves as a perch for retention clips and cover fasteners. Projections and grooves are disposed on opposed side faces for various retention possibilities.

Abstract: An automatic, portable solid state voltage regulator tester, specifically made for testing Ford and General Motors regulators. The face of the tester has contacts arranged for the manual application of either of the regulators and the regulator under test is held against these contacts with the thumb. A merit switch is pressed and if the meter rises to a marked area, pauses for a moment, and then drops to zero, the regulator is satisfactory. If the meter does not rise, or if it rises but does not drop back to zero, then the regulator is defective.

Abstract: The present invention relates to an apparatus for retaining the rails of a railroad on the cross ties. Also disclosed herein is a novel railroad cross tie which has superior life expectancy as well as damping capability and is highly resistant to the elements of nature.A hollow metallic tie element has disposed therein a plurality of support blocks which are constrained within the tie member. An overlying rail member is secured to the tie through the block members by bolt means which run between the rail, tie dampers, and support collars.

Abstract: Protective covers for workmen and equipment including a ground or pedestal type terminal cover fabricated to protect ground and pedestal type terminals and the cable connections connected therewith against weather, moisture, water etc. A sealed enclosure rests on the ground and encompasses the terminal ends of buried cables and conduits, the enclosure having easily accessible opening panels for access to the ends of the electrical cables but offering extensive protection to these cables when the enclosure is fully filled. A sectional pole system is mounted atop the enclosure to provide support for above ground cables that are brought to the pole and admitted to the enclosure and its associated terminals. Also included is a portable easily assembled box-like unit which may be folded flat for transport, may be set over material and equipment and also used as protection for workmen.

Abstract: A method and a control system for controlling the height level position and horizontal movement of a suction device which is vertically movably suspended from a horizontally movable supporting device according to variations of the inclination, or angular velocity, of a flexible suspending element in relation to the vertical, on which element the suction device is suspended.

Abstract: A connecting arrangement for a machine tool in which a driving element and a driven component are constrained from relative twisting by guide pins and are further coupled to transmit torque therethrough. The coupling mechanism is provided with an external release lever so that the faces of the driving and driven elements are in complete registry when so coupled.

Abstract: A crash cushion barrier which is a disposable unit that is being used to protect vehicles when striking sign posts, concrete abutments and the like. The crash cushion may consist of a plurality of lightweight containers made of fiberglas and filled with a compressible mixture of vermiculite. The crash cushions are anchored in front of concrete abutments, posts, or guard rails, and if the cushion is hit forceably head-on by a vehicle, the anchor cables will give way and permit the cushion to compress the enclosed vermiculite mixture to a point where movement of the vehicle has been stopped without being destroyed.

Abstract: A cleaner for removing chalk powder from a chalk eraser, comprising an upper case having an aperture through which the chalk eraser is inserted, a lower case removably connected with the upper case for collecting chalk powder and a cleaning plate interposed between the upper and lower cases. The cleaning plate has a plurality of ridges and slots against which the chalk eraser is struck. The upper case has a blocking member closing its aperture and which can be spread open to insert a chalk eraser therethrough. Chalk powder falls into the lower case through the slots and accumulates in the lower case.

Abstract: A combined motor puller and stand having a forked leg base, on rollers. A vertical column is hydraulically adjustable in height and the top of this column has a horizontal arm, with a roller carriage within the arm. Midway along the vertical column there is a moveable, adjustable fixture for attachment to the transmission plate of some motor, for further security to a motor that is suspended by the puller.

Abstract: A bag forming and filling apparatus in which a continuous tube of heat sealable plastic is fed from a roll along a pathway where it is cut to the desired length and sealed on one end. The opposite end of the sealed tubing engages over an expandable hollow mandrel which expands the open end of the tube to permit material to be inserted therein. The filled section of tubing is then fed in reverse along the same path to a point of storage or use.

Abstract: A checking and adjusting apparatus for the carburetor of an internal combustion engine such as an automobile or other vehicle, and wherein there is provided a warning signal on the dashboard of the vehicle that will be actuated when the carburetor is out of adjustment. In addition there is provided a hand controlled device for adjusting the carburetor from the dashboard of the vehicle.

Abstract: The disclosure relates to a device in collapsible anchors of the type having two shanks each with a sharp-pointed fluke. The ends of the shanks opposite the flukes are provided with inclined portions with through-holes. A bolt, suitably provided with a ring for an anchor line or chain extends through the holes. The bolt, which is intended to rest with an end abutment against one outer side of the mutually adjacent, inclined portions is provided with a resilient washer which fixes the portions in a parallel position. At least one section projecting radially from the bolt hole of one portion is located at a greater distance from the bolt hole than an opposing surface adjacent the second inclined portion. This opposing surface is located such that the projecting section is shiftable out of and into fixed position after shifting of the one inclined portion in a direction away from the second inclined portion against the action of the resilient washer.

Abstract: A portable practice golf driving range including a tethered golf ball which is driven from an area of artificial turf. The tethering is of nylon cord which is connected to a spring steel spike driven into the ground, the spring steel being of sufficient resiliency that the ball will not be torn free from the nylon cord. Tension on the artificial turf may be adjusted to alter the characteristic lie of the golf ball when it is being driven.

Abstract: A camper cooking and dining unit which can be withdrawn from the rear of a stationwagon or truck and unfolded to produce a complete kitchen and table unit for dining and cooking meals. The unit includes an icebox, cooking stove, wash basin and many storage compartments for food and cooking and dining utensils. The unit is supported by arms extending from the bumper of the vehicle which hinge as the unit is unfolded.