Other

The Charles Stark Draper Laboratory, Inc.

The Cessna Aircraft Company

George A Wood

Thomas Alan Garland

Daniel E Whitney

David S Barrett

Donald C Fyler

Frank J Siraco

John R Lawson

Louis E Torfason

Jay A Sampson

F Keith Glick

Arthur Ciccolo

John S Howland

Robert D Whiteside

A linkage assembly includes a first link connected at a first point to a translation mechanism attached to a support structure. The translation mechanism is arranged to allow the first point of the first link to translate along a substantially straight axis. A second link is pivotally connected at a first point to the support structure, and at a second point to the first link. A second point of the first link travels on or near an arc of substantially constant finite radius when the first link pivots with respect to the second link.

Swing linkage

A system for selectively loading the lowermost segment of a shingled stack of limp material segments, where each segment includes one or more adjacent layers of said limp material, and wherein adjacent segments of said stack are laterally offset along a reference axis. The system includes a substantially planar surface adapted to support the shingled stack thereon, in a position so that the leading edge of the lowermost segment is adjacent to a reference point along the reference axis. A selectively operable extractor transports the lowermost segment in the direction of the reference axis and away from the stack. The extractor includes one or more sets of hinged jaws positioned for movement in the direction of the reference axis between the reference point and a point displaced from the reference point along the reference axis. The sets of jaws are adapted to selectively grip a portion of the leading edge of the lowermost segment when that leading edge is adjacent to the reference point.

Automated system for sequentially loading lowermost segments from a

A limp material handling system includes a manipulating apparatus for selectively manipulating one or more layers of limp material on a support table. Folding is accomplished by lifting a curvilinear region of the material, reshaping that lifted region as desired, and lowering that lifted region to a curvilinear region on the support table. A seamed article assembly system incorporates the manipulating apparatus, a seam joining apparatus and a multiple parallel endless belt system for tactile presentation of the limp material to the seam joining apparatus. An optical sensing system provides information representative of the position of the limp material being handled. A programmable computer, or controller, coordinates and controls the operation of the manipulating apparatus, seam joining apparatus, belt assembly, and optical sensing system to provide automatic assembly of seamed articles.

Assembly system for seamed articles

A propeller grinding device and method employs two endless grinding belts which are transported past a grinding station to finish the front and back surfaces. A propeller blank is inserted between the belts and the belts are distorted by platens, each of which includes a plurality of independent platen vanes. Two cams selectively bear upon two camming surfaces of the vanes and move the vanes into desired positions corresponding to the surface contours to be formed on the front and back surfaces of the propeller blades. The cams are rotated as the blade is moved. They also may be moved along the camming surfaces. Additionally, the cams and platens may be moved parallel to the direction of cam rotation with respect to the belts. SU

Contour belt grinding device

Mechanism modeling kit in which flat simulations of machine elements may be assembled into demonstration working units, some elements being pivotable relative to others on loosely tightened grommets.

Mechanism modeling

Growing community of inventors

Lincoln, MA, United States of America

George A Wood