摘要:
An inspection device for examining a piece of aperture graphite of an extraction electrode, and the aperture graphite includes a to-be-examined curve and a to-be-examined engagement portion. The inspection device includes a sidewall surface having a standard curve marked thereon, and an examination engagement portion having a predetermined positional relationship with the sidewall surface. After the to-be-examined engagement portion is engaged with the examination engagement portion, and after the to-be-examined curve is projected onto the sidewall surface, the suitability of the aperture graphite can be determined according to the amount of differences between the projected to-be-examined curve and the standard curve.
摘要:
A measuring apparatus is provided, in which a machined part is measured very simply and rapidly without affecting the effect unique to a machining center and the correction work with the measuring work can be immediately performed. The apparatus comprises a base mounted removably on a spindle of a machining center A, a slider provided in the axial center of the base in such a manner as to be slidable by operation of an operating unit exposed outside of the base, probes adapted to slide into and out at equidistant positions on the outer peripheral surface at the forward end of the base and adapted to protrude through an appropriate interlocking mechanism when the slider slides in one direction, and a display unit arranged outside of the base for detecting, through a detector, the size of the portion of the probe protruded with the sliding of the slider and displaying the measurement of the detector, wherein the machined part is measured immediately after machining.
摘要:
A ball lock punch retainer system, including a punch, with a ball receiving grooved seat therein, a punch retainer body, a backing plate, a spring hole located in the retainer body, a ball positioned within said spring hole, a spring located in said spring hole, said spring generally acting to bias said ball into a locking engagement with said punch, an access hole located in the retainer body and communicating with the ball located in the spring hole, an elongated gage member which can be moved into and out of said access hole, one end of said gage member having a ball contact surface thereon, said gage member having a indicating area thereon with an upper end, a middle part, and a lower end, and the gage member being operative to determine when the ball lock is in proper position.
摘要:
The present invention relates to a construction tool for laying out components of a structure. The system comprises a length of tape comprising a first calibrated edge and a second calibrated edge separated by a width sufficient in size so that said first and second calibrated edges remain visible after installation of the components of the structure; a plurality of stud placement indicators marked on said length of tape at periodic intervals; a leader depending from a zero line of the first and second calibrated edges, said leader comprising a length and a plurality of graduated lines indicating the length of the leader; an adhesive backing; and at least one overlay label connectable to the length of tape and comprising a length sufficient in size so that a symbolic indicator will remain visible after installation of the components of the structure, a width substantially equivalent in size to a dimension of a component of the structure, an adhesive backing, and a symbolic indicator for placement of a component of the structure; said symbolic indicator comprising an architectural symbol representing the component of the structure. The system allows tradesmen to locate (and avoid) other components of the structure after the surfacing component has been installed and the walls enclosed, for purposes of repair or later component installation. The device solves the need for re-measurement of dimensions of the structure. The device is further used in a novel method for laying out structures comprising at least one wall.
摘要:
A molded limit gauge for measuring workpiece thicknesses. The limit gauge includes a body having one or more elongate ridges extending longitudinally therealong. Each ridge has a plurality of notches extending laterally through its upper portion. Each notch has a unique longitudinal dimension that is uniform. In a first preferred embodiment of the invention, the bottom surface of each notch and the land between each notch is horizontally flat. In a second preferred embodiment, each of these surfaces has a configuration of a laterally convex curve. The limit gauge body is configured such that it can be mounted atop a planing machine. So mounted, it can function as a structural top of the planing machine. Measurement of a board thickness is accomplished by attempting to slide the board through notches that appear to match its thickness. A range of board thickness is defined between the indicated sizes of two adjacent notches that respectively allow and do not allow passage of the board through. When a number of different workpieces, such as boards, are to be planed, they can readily be measured and sorted into similarly sized groups before being planed so that a minimum number of planing machine adjustments need be made. A third embodiment includes jaws that extend into the notches. The jaws are resiliently biased against workpieces inserted into notches. Their positions are indicated on a dial indicator to facilitate determining workpiece dimensions that differ somewhat from those of the notches.
摘要:
The present invention is embodied in a hand held caliper with a hand movable slide, whose motion is transformed into rotation of an apertured multi-row encoder disk, a radiation source and a radiation detector. The present invention accurately measures a linear dimension using a simple, efficient, and durable digital measuring system. Accuracy of 0.0001″ is attained, greater than the 0.0005″ of the prior art, without encountering greater manufacturing costs, by utilizing well known fabrication techniques when producing the multi-row encoder disk, and otherwise using well known and inexpensive technology. The present invention does not require a motion dampening device, as errors may be determined and signal jitter are compensated for in the invention electronically or through the use of software, which adds little or no additional cost to the system and does not add mechanical complexity. Further, the present invention only requires a single rotatable disk to determine the direction of rotation, and no phase offset circuitry, through the use of dual rows of light emitting slots in the disk, the slots being offset between rows by 90° (in quadrature), but may be offset by as little as 10°.