Today in 1901, US Patent 672788 A was issued, an invention of Albert Lieber and August Meimberg, for their “Device for Hoisting and Transferring Bottled Beer in Bottling Establishments.” There’s no Abstract, but in the description summarizes it by stating that they’ve “invented new and useful Improvements in Devices for Hoisting and Transferring Bottled Beer in Bottling Establishments by Means of Air-Hoists and Transverse Carriers.” But below is a more detailed account.
Our invention relates to an improvement in the means for handling of large quantities of bottled beer for the purpose of pasteurizing. During the operation of this process the bottled beer has to be transferred in trays by means of trucks from the place of filling to the pasteurizing-tanks. Arriving at the tanks, the trays loaded with bottled beer must be elevated, so that the tray may be moved over the steaming-tank and then lowered into the same. It has been customary heretofore to perform these operations by means of hand or chain-hoists, necessitating the employment of a large number of men.
Our invention comprehends, in addition to the pasteurizing tank or tanks and the trays in which the bottled beer is contained while being transported and pasteurized, a raising and lowering means which travels on overhead tracks and carries the beer to position over the tank in which it is to be pasteurized and `from said tank after it (the beer) has been pasteurized. The raising and lowering means preferred by us comprises a cylinder having therein a piston-head and provided with a piston-rod having means by which a tray is detachably connected therewith. Said cylinder is also provided with means by which a suitable means or medium, preferably compressed air, is conveyed thereto for the purpose of actuating the piston and raising and lowering the tray with its contained bottles of beer. The construction is preferably such that the compressed air enters the cylinder at points which are both above and below the limits of travel of the piston-head and is conveyed to the inlets by pipes which have their contiguous ends joined by a valve-casing having a suitable valve, actuable to cause the compressed air to enter the upper part of the cylinder in order to drive the piston downward,and thereby lower the tray, with its contained bottles of beer, into the pasteurizing-tank or onto a truck after the beer has been pasteurized and to cause the air to enter the lower port in the cylinder when it is desired to raise the piston, and thereby lift the tray and beer from a truck or from said pasteurizing-tank. This means of raising and lowering the trays, with their contained bottles, by compressed air or other suitable fluid admitted below and above the piston-head, respectively, has especial advantages in the handling of bottled goods, as the action of the piston in both directions of its travel is cushioned by said duid, and said piston, together with the parts carried thereby, is caused to move slowly, steadily, and without jar, whereby the liability of breaking the bottles is reduced to a minimum and is materially less than it would be if the piston were caused to descend by gravity. The means adopted for detachably connecting the hoisting device with the trays are of peculiar construction and include pendent eyes or loops carried by said device to engage hooks on the trays, together with a slidable or movable safety device adapted to prevent accidental disconnection of the parts from each other.
