Abstract: A quick attachment device for a tractor which has lift arms for supporting an implement, such as a loader bucket, lift fork, or the like. The rear side of the implement has two spaced-apart attaching portions in the form of hooks faced toward each other, and an attachment plate is held by the tractor lift arms and the lower edge is first positioned into the lower implement hook and then the plate is slid upwardly until the upper edge is engaged in the implement upper hook. A spring-loaded pin then automatically falls into a hole in the implement to secure the plate relative to the implement and thus attach the implement and plate together. A release cam is attached to the pin for withdrawing the pin and the attachment plate can then be manuevered out of the implement hooks to be removed from the implement when release is desired.

Abstract: A multi-ply dunnage bag is provided with an end closure which is both strong and easy to fabricate. The first wall of the dunnage bag has, at one end, an extension or flap on the end of each ply. The flaps on each ply of the first wall are segregated into pairs of adjacent flaps and the two flaps that make up each pair are secured together and folded over the end of the bag where they are inserted between two adjacent plies of the opposite, or second wall and wherein at least one of the flaps of each pair is secured to one of the plies of the second wall. An identical end closure is provided at the other end of the bag, but with the plies of the second wall having flaps folded over and secured to the first wall.

Abstract: A device for centering chip components attached to the tip of a pick and place spindle after selection from storage and prior to placement on a substrate. The need for precisely stored component chips is eliminated. A vacuum in the hollow spindle tip holds the component chip, while, in turn, cam-driven feet and fingers attached to the spindle housing push the component chip to a centered position on the spindle.

Abstract: An automatic device for extracting stacks of finished hollow articles from a stacking station of a heat moulding apparatus. A plurality of vertical rods, rotatable about their longitudinal axes for engagement with stacks of finished articles, are mounted for vertical and horizontal displacement. Control means are provided for controlling engagement and disengagement of the stacks of articles and for controlling vertical and horizontal displacement of the rods in a predetermined sequence.

Abstract: A jaw attachment for a backhoe has a first jaw affixed to the dipper stick of the backhoe and a second jaw pivotally mounted on the dipper stick such that a gripping portion of the second jaw is movable toward and away from a mating gripping portion of the first jaw. The fluid motor mounted on the dipper stick and normally connected to the usual bucket of a backhoe is connected to the second jaw for actuating same. The configuration of the gripping portions of the jaws can be varied in order to accommodate articles of different configurations, such as timbers, pipes, brush, and the like.

Abstract: A loading arm apparatus having a displaceable main shaft formed as a fluid operable cylinder with a fixed piston which may be clamped at any position along its displacement by a fluid operable clamping means operable against its wall. A guide rod placed in a common block with the main shaft can be clamped also by a separate clamp simultaneously with the main shaft. As a result, the main shaft can be mounted with a large play.

Abstract: A tipping vehicle comprising a chassis a body mounted on the chassis to tip about a tipping axis and a main and an auxiliary hydraulic ram for tipping the body, the rams each being connected independently of the other between the chassis and the body with the main ram being closer to the tipping axis than the auxiliary ram and with the rams having opposite inclinations with respect to the vertical when the body is in its lowered position.

Abstract: The invention provides a unitary tilting container assembly of the portable type adapted to be mounted and demounted on a truck, which includes, in combination, a T-shaped bracing structure adapted to be bolted to the truck, there being hinged, at a first pivot axis, to the bar of the T a box-like load bearing tilting container. There is a hydraulic ram pivotally connected on the one hand, at a second pivot axis, to the end of the leg of the T-shaped bracing structure and, at a third pivot axis, to a trunnion carried on the underside of the container. The ram is extensible and pivotal about the second pivot axis from a closed position in which the floor of the container is alongside and substantially parallel to the leg of the T-shaped bracing structure to an open position of the ram in which the floor of the container is inclined to the leg of the T-shaped bracing structure by an angle of at least 25.degree.. All said first, second and third pivot axes are substantially parallel to one another.

Abstract: A tool transfer arm is pivotally mounted on a tool transfer housing which is movable between a tool storage magazine and the spindle of a machine tool to transfer tools between the tool storage magazine and the spindle. The tool transfer arm has two pair of toolholder jaws, one pair on each end thereof. One toolholder jaw of each pair is movable and the other jaw is fixed. Each movable jaw is pivotable between an open and closed position by a clamp arm which is pivotally connected to the corresponding movable jaw and slidably engages an arcuate guide slot in the tool transfer arm. A cylindrical abutment on the spindle head near the spindle and on the tool storage magazine bears against the adjacent clamp arm when the tool transfer arm approaches either the tool storage magazine or the spindle in one angular orientation to close the corresponding movable jaw and clamp a toolholder in the jaws for removal from the tool storage magazine or spindle.

Abstract: A linkage associated with a boom and stick arm of a vehicle includes struts mounted to the boom and stick arm, links mounted to the stick arm, an implement pivotally mounted to the stick arm, and a cylinder interconnecting the struts and links for providing that as the stick arm is moved relative to the boom, the implement maintains a chosen attitude.

Abstract: An advancing system for heat exchangers having a helically wound spine fin material on the outer wall of a base tube member. The advancing system includes a member movable between a resetting and advancing stroke. The member has a passageway that is adapted to receive the spine fin heat exchanger. The internal walls of the passageway being designed and dimensioned to cause the spine fin tubing to move during the advancing stroke while allowing the tube to remain stationary during the resetting stroke.

Abstract: A bridge scraper is mounted on a main frame for vertical pivotal movement between a raised inoperative position and an operative position, where the bridge extends generally horizontally and is in wheeled engagement with an outer track of a dump, a scraper chain carried by the bridge extends along the bridge and in an operative position scrapes bulk material from the dump toward the main frame. A slope-breaking assembly is carried by the bridge and is engageable with the dump when the bridge is operative, a rocker mounted on the frame for vertical pivotal movement, has a counterweight arm extending away from the bridge, a linkage connecting the rocker to the bridge is arranged to hold the counterweight arm in a substantially horizontal position when the bridge is operative and imparts a downward pivotal movement to the counterweight arm as said bridge is raised. A bridge-actuating arrangement moves the bridge between inoperative and operative positions.

Abstract: This disclosure depicts shadow mask storage apparatus for use in the manufacture of television picture tubes and, specifically, for use with screening apparatus for screening picture tube faceplates. The apparatus has a mechanical memory for holding and cataloging shadow masks uniquely paired with the faceplates while the faceplates are being screened. The apparatus includes a plurality of mask holders which follow a cycle of being bottom loaded upward onto a stack of ascending mask holders, ratcheted upwards, rotated to a stack of descending mask holders, ratcheted downward, removed downward from the bottom of the stack of descending mask holders, rotated to a predetermined load/unload position, and rotated to the bottom of the stack of ascending mask holders.

Abstract: The edges of the upper portion of a stack of sheets are driven horizontally into the high friction periphery of a rotating roll which raises the edge portions from the stack in succession. The rotating roll is then pivoted about an external axis until it is supportingly disposed under the raised batch. A second roll or roller is then lowered onto the batch so that the raised edge portion is confined between it and the lower rotating roll. A nip is thereby formed and the entire batch of sheets is then driven therethrough for use downstream.

Abstract: A method for loading stock including a device having a base which will fit beneath the pan which receives the stock to be operated upon by a machine and has a stock carrier resting upon the floor and pivoted to this base at a height approximately that of the stock pan and which is also provided with hooks to engage the stock pan so that the carrier may swing about its pivot to rest the stock upon the pan of the machine to receive it and may be easily slid onto the pan for loading the machine for work on the stock.

Abstract: A vehicle for easy and convenient transporting and laying of a large diameter pipe or pipe section, in particular in a tunnel. This pipe laying and transporting vehicle comprises an elongated frame defining opposite end portions and a central portion, roadwheels arranged in a single longitudinal row, and each selectively steered and raisable relative to the frame, and connected to one of the end portions, a pair of carrying devices mounted on the central portion and engaging a pipe section to carry it as it is surrounding the central portion, and each carrying device being upwardly and laterally displaceable and including rollers engaging the inner face of the pipe section and driven to selectively rotate the latter about its longitudinal axis and transversely align the same with a precedingly installed pipe section.

Abstract: A fluid inflatable, elongated, flexible, substantially parallel pair of tubes for supporting goods above a surface and a method of stacking and supporting goods on a surface and on top of goods by use of said tubes, wherein upon inflating the tubes, a fork lift truck or the like can be used to lift and move the goods; upon deflating the tubes, less space is required for storing the goods after they have been stacked, and upon partial deflation of the tubes, both a cushioning effect and a space saving effect is obtained.

Abstract: Load transfer apparatus comprises:(a) load receiving sling means having opposite ends, and(b) support means operatively connected with at least one end of the sling means and bodily movable to endwise elongate the sling into a ramp position for gravity transfer of a load off the sling means.

Abstract: Hydraulically activated, spaced apart, front end loader support arms extend from a tractor. A loader attachment includes a vertically extending frame pivotally attached to the support arms forwardly of the tractor. This vertical frame includes a main horizontal frame support bar pivotally mounted in outer ends of the support arms and a a pair of open vertical guides which extend downwardly from the frame support bar. A horizontal hook support bar extends through the vertical guides and pivotally supports central portions of the two jaw-forming hooks at each end thereof. Upper ends of each of these hooks are pivotally connected to links which are pivotally connected to the frame support bar. A vertical hook support bar lifting strap extends integrally up from the hook support bar and is in sliding relationship with respect to the frame support bar. To load, means is provided to raise the lifting strap with respect to the main frame, thus to cause the jaws to be opened.

Abstract: A bar stock feeding apparatus for an automatic lathe, comprising a tube for guiding the bar stock. A piston is situated in the tube behind the bar stock for pushing it towards the headstock of the lathe, the piston itself being urged towards the headstock by means of oil pressure while part of the oil overtakes the piston by flowing through a clearance left between the piston and the inner wall of the tube and through an inner channel through the piston having an adjustable cross-section. Regulating means and non-return valve means are provided in the inner channel for rendering the piston retractable responsive to oil underpressure applied instead of the oil pressure.