Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 4407262 | Wafer dicing apparatus Installation for the sawing of wafers of semiconductor material encompassing an alignment station (1), a sawing station (9), and a cleaning station (7). A handling device, provided to convey the wafers from one station to another, while ensuring a perfect... | 10/04/1983 |
| 4404741 | Device for the alignment of a part and a substrate for carrying the part Device for the alignment of a part 12 and of a substrate 10 designed to receive it. The device contains a plate 2, on the horizontal flat upper surface 3 of which an XY table 5 can slide, a blocking device 16 for temporarily interrupting any translation o... | 09/20/1983 |
| 4380963 | Movable limit markers for viewing glass of measuring instruments A viewing glass used through which measurements are displayed which comprises a groove (5) having a shape parallel to the movement of an indicator needle. Displaceable markers are placed in the groove in order to denote the limiting positions of the measu... | 04/26/1983 |
| 4348813 | Elevation measuring instrument with selectable measurement scales A microcomparator for elevation measurements having an amplification mechanism (3) which consists of a lever (31), the lever transforming the linear movement of a feeler (5) into a circular movement, and a lever arm (32) formed at least partly by calibrat... | 09/14/1982 |
| 4279668 | Directionally solidified ductile magnetic alloy Magnetic alloys of a ternary composition as defined within the region A, B, C, D of the ternary diagram of FIG. 5, wherein X is one or more metals selected from the group which consists of iron, nickel, aluminum, copper, molybdenum and manganese and prefe... | 07/21/1981 |
| 4208225 | Directionally solidified ductile magnetic alloys magnetically hardened by precipitation hardening Magnetic alloys of a ternary composition as defined within the region A, B, C, D of the ternary diagram of FIG. 5, wherein X is one or more metals selected from the group which consists of iron, nickel, aluminum, copper, molybdenum and manganese, are cast... | 06/17/1980 |
| 4086521 | Digital system for stabilizing the speed of a clockwork motor An energizing circuit for an electric motor, driving a clockwork of a timepiece, includes a stator coil coacting with one or more magnet pairs on an associated rotor whose periodic alignment with the coil induces therein a train of monitoring pulses with ... | 04/25/1978 |
| 4041693 | Escapement for a timepiece This invention refers to a high efficiency escapement wherein the pallets embrace more than one fifth of the teeth of the pallets wheel, and wherein the entry-pallet embraces relative to the line joining the center of the escape wheel to the pallet staff ... | 08/16/1977 |
| 4002021 | Rotary escapement for timepiece A timepiece escapement has a balance carrying an eccentric pallet pin periodically and regularly oscillating forward and backward about a balance axis with the pin engaging on each forward oscillation between the teeth of an adjacent escape wheel so as an... | 01/11/1977 |
| 3975962 | Click work for a watch movement In an electric timepiece an electric motor continuously rotates a disk carrying an eccentric pin that is engageable inside a heart-shaped opening formed in an actuating member carrying a pair of pallet pins engageable with and between the teeth on opposit... | 08/24/1976 |
| 3956941 | Escapement-type drive mechanism for watches and the like An escapement-type drive mechanism for watches and the like comprises an escapement wheel formed with a circumferential array of teeth spaced apart by respective radial slots and having displacement faces inclined to respective radii. An angularly oscilla... | 05/18/1976 |
