Abstract:
A shoe-lasting machine having a device for skiving the margin of a partially lasted shoe upper supported by wipers in an intermediate supporting and clamping position. The wipers are included in heads which transfer the shoe between a pulling unit and a skiving device.
Abstract:
A linear positioning mechanism sequentially shifts an array of articles according to manual or automatic control to release them individually and in selected succession for delivery to a single discharge locality. By way of example, an aligned plurality of stacks of electronic components such as discrete integrated circuits (the stacks respectively comprising electrically identical components which may differ electrically from those in the other stacks of the plurality) is moved according to control data along an axis successively to register selected stacks with a gravity-feed chute. The latter may be part of a componentmounting machine, or be a magazine loadable according to a desired program, to facilitate subsequent sequentially mounting of the components.
Abstract:
THE RADIAL-ACTING PRESSURE-APPLYING MEANS REQUIRED BETWEEN THE NONROTATIVE SHAFT AND THE ROTATIVE SHELL ENCIRCLING THIS SHAFT OF A CONTROLLED DEFLECTION ROLL ASSEMBLY, IS FORMED BY ONE OR MORE PISTONS WORKING IN CYLINDERS MOUNTED BY THIS SHAFT. THE ONE OR MORE PISTONS EACH HAS A HYDROSTATIC BEARING PAD ON ITS PRESSURE-APPLYING END WHICH WORKS AGAINST THE INSIDE OF THE SHELL ROLL SO THAT THIS INSIDE PROVIDES THE RUNNER OF A HYDROSTATIC BEARING ASSEMBLY.
Abstract:
A SHOE SUPPORT FOR HOLDING A SHOE BOTTOM UPMOST IN POSITION TO BE ENGAGED BY TOOLS WHICH ROUGHT THE MARGINAL PORTION OF THE OVERLASTED UPPER. THE SUPPORT INCLUDES A HOLDDOWN FOOT WHICH ENGAGES THE BOTTOM OF THE SHOE AT THE HEEL AREA. MEANS ARE PROVIDED FOR SELECTIVELY REMOVING THE HOLDDOWN FOOT TO AN INOPERATIVE POSITION TO PERMIT THE TOOLS TO ACT ON THE ENTIRE MARGIN FROM TOE TO HEEL AS DISTINGUISHED FROM ONLY FROM THE TOE TO THE HEEL BREAST LINE WHEN THE HOLDDOWN FOOT IS IN OPERATIVE CLAMPING POSITION.
Abstract:
A SHOE LASTING MACHINE IN WHICH A STOP LIMITS MOVEMENT OF WIPERS TO AN INTERMEDIATE POSITION IN WHICH AN UPPER HAS BEEN WIPED OVER A SHOE BOTTOM ONLY ENOUGH TO HOLD AN INSOLE AGAINST A LAST BOTTOM, AND A PRESSURE PLATE WHICH PREVIOUSLY HELD THE INSOLE IS THEREAFTER RETRACTED AND CONTROLS CONTINUED MOVEMENT OF THE WIPERS.
Abstract:
IN ORNAMENTING PLIABLE SHEET MATERIAL , A SURFACE AREA THEREOF IS PROVIDED WITH A LAYER OF MASKING MATERIAL AND SUBJECTED TO PRESSURE FROM A CUTTING DIE TO SEVER THE LAYER AND INDENT THE SHEET MATERIAL ALONG LINES DEFININGAREA PORTIONS TO BE COLORED. THE MASKING LAYER IS REMOVED FROM THE AREA PORTIONS WHICH ARE THEN SPRAY COATED, AND THEREAFTER THE REMAINING MASKING LAYER IS REMOVED. THE MATERIALS ADJACENT THE EDGE OF THE CUTTING DIE ARE HEATED DURING PRESSURE THEREOF TO PROMOTE SEVERANCE OF THE LAYER AND THE FIXATION OF THE EMBOSSMENT SO THAT THE AREA PORTIONS ARE SHARPLY DEFINED AND STAND OUT HANDSOMELY. THE HEATING IS EFFECTED BY EMANATIONS FROM THE DIE, SUITABLE IN THE FORM OF A HEAT FLUX OR AN RF FIELD BUT PREFERABLY BOTH.
Abstract:
A THIN, MICROPOROUS SHEET HAVING EXCELLENT STRUCTURAL UNIFORMITY AND PERMEABILITY IS FORMED BY CASTING AND SOLIDIFYING A THICK, BODY OF A LIQUID EMULSION OF WHICH THE CONTINUOUS PHASE IS BASED ON LIQUID POLYMERIC MATERIAL REACTIVE TO FORM A FLEXIBLE, RESILIENT SOLID AND THE DISCONTINUOUS PHASE IS FINE DROPLETS OF A VOLATILE LIQUID IMMISCRIBLE AND NONREACTIVE WITH THE CONTINOUS PHASE. THE SOLIDIFIED BODY IS SLICED INTO SHEETS OF THE DESIRED THICKNESS WHILE THE LIQUID DROPLETS ARE RETAINED IN THE SOLIDIFIED MATERIAL AND THEREAFTER THE LIQUID IS REMOVED FROM THE SHEETS LEAVING PORES AND DISCONTINUITIES IN THE SOLIDIFIED MATERIAL.
Abstract:
A lubricating layer is fixed on the wall of the discharge orifice of a continuous internal mixer of the kind wherein the internal pressure of the material being mixed in controlled by the choking effect of this orifice on the material discharged therethrough whenever new material us fed into the mixer. This provides a smoother restraint of the discharging material and therefore more uniform control of the pressure on the material while it is in the mixer.