Abstract: A chuck adapter attachable to a fixed chuck mechanism for converting the fixed chuck mechanism to a compensating chuck mechanism includes an attachment plate for connection to the head of the fixed chuck mechanism. The attachment plate includes a plurality of slots formed therein for alignment with respective drive jaws on the fixed chuck head. A plurality of adapter jaws are provided, each movable along a respective one of the plate slots, each adapter jaw including a movable clamping pin extending therefrom, and each adapter jaw including a hydraulic displacement member which reacts to movement of the clamping pin. A hydraulic circuit is provided in fluid communication with each of the hydraulic displacement members for maintaining substantially the same clamping force on each of the clamping pins as the clamping pins move.

Abstract: A printing system operates on a computer system to enable creation of a variety of printed products. The printing system takes either a kiosk form or a personal system form. The printing system contains a variety of definitions of products in its storage which may be selected and modified by a user. The user may alter a plurality of aspects of the selected product including the layout of the product, the graphics of the product and different aspects of the textual information to be printed on the product to personalize the product. Upon completion of personalization of the product, the printing system provides the user with a plurality of order and transmission options which allow certain products to be printed locally, and which allows certain products to be printed by a remotely located printing facility. The user may create a print order which is transmitted in one of two manners to the remote printing facility.

Abstract: Caking coals can be solvent extracted in high yields without agglomeration by a first stage extraction of 380.degree. C. to 420.degree. C. and at a pressure above the critical pressure of the solvent, followed by a second stage at a temperature above the critical temperature of the solvent in the range 440.degree. C. to 490.degree. C. Conveniently, the extraction is done by a cocurrent flow, using a hydrogen donor solvent.

Abstract: Hydropyrolysis of coal can be done as a two stage process, offering good yields of benzene. The first stage is carbonization of coal in the presence of hydrogen or reactive gas at elevated pressure. The volatile products, without cooling or condensing, are then subjected to cracking at a temperature above the carbonization temperature, in the absence of catalyst, in the presence of hydrogen or reactive gas. The char remaining is reactive and can be gasified. The process is e asier to control and offers many advantages compared to prior proposed single stage hydropyrolysis.