Abstract: Systems and methods are provided for locating a pair of components relative to one another using complex surfaces. One component has a complex surface, where the complex surface is smoothly contoured. Another component is shaped to be connected with the first component. A fixture locates the first component relative to the second component. The fixture includes a locator with a complex surface region shaped to mate with the complex surface of the one component to locate the fixture relative to that component. The fixture includes another locator to locate the fixture relative to the second component.

Abstract: A vehicle frame inspection and cutting system includes: a frame moving device configured to support a vehicle frame and to transport the vehicle frame; an inspection robot including a first camera configured to capture first images of a side of the vehicle frame; a cutting robot configured to cut holes through vehicle frames and including an identifier disposed on an outer surface of the cutting robot; a second camera disposed vertically above the frame moving device, the inspection robot, and the cutting robot and configured to capture second images vertically downwardly; a control module configured to, based on the first images and the second images: move and actuate the cutting robot and position a cutting tool of the cutting robot at a target location on the vehicle frame; and cut a hole through the vehicle frame at the target location.

Abstract: An attachment (10) for operably mounting and supporting a ladder (12) comprises an angular frame (18, 20) adapted for receipt by a vehicular hitch (14). The frame (18, 20) includes crosspieces (26) adapted for receiving rungs of the ladder (12), which are releaseably connected together with fasteners (28). In the second embodiment, the fasteners (28?) are captured on the frame (18?, 20?).

Abstract: An attachment (10) for operably mounting and supporting a ladder (12) comprises an angular frame (18, 20) adapted for receipt by a vehicular hitch (14). The frame (18, 20) includes crosspieces (26) adapted for receiving rungs of the ladder (12), which are releaseably connected together with fasteners (18). In the second embodiment, the fasteners (18) are captured on the frame (18?, 20?).

Abstract: An apparatus for conditioning tobacco which includes a cylinder conditioner mounted for rotation about a generally horizontal axis, and an opening unit mounted at the inlet end of the cylinder for rotation therewith, and wherein the opening unit has pins projecting towards the axis of rotation for supporting portions of unopened layers of tobacco within the unit on initial entry thereof, and for effecting opening of the tobacco on rotation of the unit with the distal ends of the pins defining a frustoconical section which narrows in the direction of tobacco feed.

Abstract: 1-(4-Cyano-phenoxy)-2-hydroxy-3-[2-(5-1H-tetrazolyl)-chromon-5-yloxy]-propa ne and its pharmacologically acceptable salts, are useful in the treatment of allergies, allergic asthma and inflammation.

Abstract: Certain substituted cycloalkenochromones and pharmacologically acceptable salts thereof are disclosed as being useful in the treatment of allergies. The compounds have the structure: ##STR1## X is --O--, --S--, or --SO.sub.2. Y is from 1 to 4. R.sub.1 is H or alkyl, and R.sub.2 is H, alkyl, aryl, carboxyl, alkoxy, aralkoxy, or alkoxycarbonyl. When R.sub.1 is alkyl, R.sub.2 is hydrogen, alkyl or aryl. At least one of R.sub.2 and R.sub.3 is alkoxycarbonyl, carboxyl or tetrazolyl. R.sub.3 is carboxyl, alkylthio, alkylsulfonyl, alkylsulfinyl, alkoxycarbonyl, or tetrazolyl.