摘要:
A manually-powered, lever-operated, multi-hole punch device with visual alignment indicia, for punching holes in stacked sheet media such as paper. The hole punch device includes an elongated base with a top side divided along its length in approximate halves, with the front half being a lower flat surface transitioning through a step to a rear half, upper flat surface. The upper flat surface includes a plurality of peninsulas extending into the lower flat surface, such that the areas between the peninsulas include a visual alignment indicator. Punch elements and their punch pins are located on each peninsula overlying the lower flat surface, and the height of the step creates a slot to receive the paper stack. Underneath each punch pin on the lower flat surface is a receiving hole to receive the reciprocating punch pin. An optional chip receptacle is positioned at the underside of the base.
摘要:
A method for monitoring cutting processing on a workpiece whereby a part of the workpiece is separated from a remainder of the workpiece along a desired cut contour, wherein, after the cutting processing, the following steps are carried out: irradiating the workpiece with a laser beam at a location within the desired cut contour, detecting radiation generated by an interaction between the laser beam and the workpiece, and evaluating the detected radiation to determine whether, during the cutting processing, the part of the workpiece was completely separated from the remainder of the workpiece. The invention also relates to a laser processing machine for carrying out the method.
摘要:
In a magnetic workpiece holder and gauge for a press brake, the core of an electromagnet for the work core is electrically insulated, and connected to a circuit for energizing the electromagnet when electrical contact is made between a magnetic workpiece and the core structure of the electromagnet. A probe may also be provided for detecting the lateral alignment of the workpiece.
摘要:
A cable separator including a pair of slotted rolls that define uniformly spaced apart slitting or shearing sites which are spaced from one another by a distance corresponding to the conductor spacing of a flat cable. A guiding structure at the inlet of the slitting sites for guiding the flat cable thereinto at a proper transverse position to assure that slitting takes place between adjacent conductors. The guiding structure has a plurality of longitudinally extending spring loaded ribs that are spaced from one another by an integral multiple of the interconductor spacing of the cable. A pivotal clamping frame mounted at the inlet of the guiding structure and a mechanism for adjusting the clamping frame to adjust the distance over which the cable conductors are separated by the apparatus.
摘要:
A base portion has an upper surface on which are formed slots for receiving root canal fillers. The slots are graduated whereby the length of each root canal filler can be adjusted easily. The base portion is provided with a cover plate for pressing and fixing the root canal fillers placed in the slots, the cover plate having a flat, inner pressing surface and being pivotably attached to one side of the base portion.
摘要:
Device for making rectangular cuttings or embossings in cardboard or another sheet material for preparing passepartout frames, in the form of a block with four fixtures, which include one or more, preferably four, cutting or embossing members, which in the operative position are in contact with the underlying material form the sides of a prism or a truncated pyramid.
摘要:
A cutter for removing samples from a moving web comprises a knife having a pair of cutting edges that are selectively urged into contact with the web being cut. In one embodiment, the blades are crossed relative to each other while in a second embodiment the tips of the two blades have a common apex. The blades may be positioned so that they slope with or against the web being cut. The sample has an area coincident with an area monitored by a gauge to enable the gauge calibration to be determined.
摘要:
A waveguide-slotting apparatus having continuous slotting of radiating elements in standard rectangular extrusions or drawn tubing which are precisely located electrically.