摘要:
An electronic cash register (ECR) which may be connected to different output devices having different output formats such as different characters per line comprises: a memory for storing information on respective output formats corresponding to the possible output device(s) connected to the ECR, a search-reader for searching through the memory for specified output device(s) and for reading information on an output format for the specified output device(s), and an output data editor for editing output data according to the information read by the search-reader in response to: (a) an output demand for the ECR and (b) a predetermined editing rule which uses the read information.
摘要:
A calculating device and a method of use thereof for determining the lead required to shoot a projectile at a moving target including cooperating logarithmic scales with indicia corresponding to the parameters target speed, range, projectile speed and lead displayed on a fixed and a slide member. Pictorial markers representative of various projectiles are disposed along the projectile velocity scale at locations corresponding to their normal speed and words descriptive of target speed are disposed at appropriate locations along the target speed scale so that calculations may be made by persons not having knowledge of game and projectile speeds in numerical terms. In accordance with one embodiment of the invention, the logarithmic scales are longitudinally disposed and the slide member may move relative to the fixed member in a horizontal direction. In accordance with other embodiments of the invention, the scales are disposed in a circular arc on members which may be rotated about a common axis.
摘要:
A calculating device for making mathematical computations constituted by a sleeve member, an endless belt and a slide member. There are longitudinally extending mathematical scales on both the sleeve member and the belt and the belt is trained around the ends of the slide member to form an assembly which is telescopically slidable into the sleeve. There are slots in the sleeve alongside the sleeve mathematical scale with which the belt scale comes into registry when the slide/belt assembly is within the sleeve. A computation based on the relationship z f(x,y) may be made by setting x1 on the belt mathematical scale adjacent the identity operator on the sleeve mathematical scale and reading z1 on the belt scale adjacent y1 on the sleeve scale.
摘要:
A disc computer having a lower disc with a peripheral scale at the edge of its upper face and an upper disc rotatably and concentrically secured at its center to the first disc. The upper disc being smaller in diameter than the lower disc and having a peripheral scale at the edge of its upper face for use in conjunction with the scale on the lower disc. The upper disc has a pair of diametrically opposed, transparent lugs extending from its peripheral edge substantially to, but not beyond the peripheral edge of the larger bottom disc to facilitate manipulation of the upper disc.