Abstract: Boat cradle and storage construction including a plurality of substantially identical support units each availing of a central column comprising a support element and brace parts connected to the column and a base member of chevron shape with an adjustable ram in the column extending upwardly, and a pad at its end to engage the bottom of a boat or the like, the arrangement of the column and brace parts being such as to reduce space required for storage of the units when not in use and yet the base member shape provides stability, the arrangement of the brace parts being important from the standpoint of the overall assembly.

Abstract: A fork for a fork lift truck having a blade and shank connected by a heel, with a top hook on the shank and a bottom hook near the heel, the bottom hook being constructed so as to be locked and unlocked to the carriage of a lift truck to facilitate engagement of the fork with the carrier and reduce manual effort of the operator and obviate special positioning of the fork prior to connection as is commonly required.

Abstract: A system for storage and shipping of boats availing of a series of adjustable support units which are connected by flexible elements to each other to prevent lateral and longitudinal movement of the boat with respect to its supported location, the support units likewise providing for fastening of a boat to the units by other flexible elements.

Abstract: A lift truck fork of substantially reduced weight without sacrificing load carrying capacity, the weight reduction being effected by forming at least one of the load or lift arms with a channel-like cross-section extending throughout a substantial portion of the length of such arm, additionally forming the flanges of said channel-like portions with parabola-like edges.

Abstract: A fork lift vehicle lift fork having provisions to signal a user when wear of the fork on a surface or surfaces which are subject to wear, has progressed to an extent which may result in failure of the fork if subject to further continued use, such provisions including a plate element fastened adjacent a surface in such a way as to cause automatic release of the plate element when the wear has progressed to a predetermined extent, to assure visible notice of that fact, similar provisions being suitable for use in like manner to indicate wear of a separate surface subject to wear.

Abstract: There is disclosed a method of making a fork for a fork lift vehicle, which fork is formed with an integral head, created by forging the same, into a hooked shape form, the rest of the fork being of generally conventional configuration, the fork further including a mechanism to effect latching of the same in position for use made possible by the method and ultimate form of the fork head and to make positive the positioning and release of the fork for movement into various transverse positions with respect to the vehicle.

Abstract: A fork for a fork lift vehicle, which is formed with an integral head, created by forging the same, into a hooked shape form, the rest of the fork being of generally conventional configuration, the fork further including special devices to effect latching of the same in position for use and to make positive the positioning and release of the fork for movement into various transverse positions with respect to the vehicle.

Abstract: An attachment for buckets of vehicles known as front end loaders or the like, which consist of one or more, usually a pair of generally flat fork bodies removably positionable at the open end of the bucket of such a loader, the fork bodies being supported below the bucket, closely connected thereto by a bucket edge gripping bar extending along the bucket edge which provides for adjustment of the bodies at the edge, fasteners engaging suitably formed parts of each body and the bar, to maintain the attachment in place, to facilitate operation of the loader as a fork lift.

Abstract: There is disclosed latching instrumentalities or structure for the forks of fork lift trucks which involves forming the head of a fork with a recess, a strap member of resilient construction having a detent formed thereon to engage a notch on a fork lift truck support being mounted on the head and in conjunction with the recess, the member being operable by simple bending of a portion thereof to move the detent out of a notch and permit the fork to be moved transversely along the truck.

Abstract: There is disclosed lift fork construction including a hook portion at one end of the fork body which includes resiliently controlled latch instrumentalities arranged to be raised and lowered into and out of engagement with notches formed in a support member carried by a lift truck, rotation of a T-shaped member included in the said instrumentalities to an angle to extend across a notch, preventing engagement therewith, means being provided to manipulate said member to move the same into position coinciding with a notch and thereby enter the same to lock the fork in position on the support member aforesaid.

Abstract: There is disclosed locknut construction comprising a nut of form and size similar to a usual nut which includes a nut body and locking section integral therewith, said section including segments extending angularly, radially, inwardly, which are of pre-determined length, whereby flattening of the segments when the nut is tightened on a mating threaded member and against a bearing surface from which such member extends, will cause said segments to enter between the crests of said threads, tending to deform the same, resulting in locking of the locknut body against undesirable reverse rotation and loosening thereby.