Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 4527917 | Electronic 3-mode typewriter/calculator with special dead keys and repeat keys An electronic typewriter having calculating, displaying and editing capabilities as well as printing capability. The typewriter includes a main control device having three different modes in which the typewriter is operated. In the first mode, the control... | 07/09/1985 |
| 4502798 | Typewriter baseplate attachment enabling use of print keys for non-print operations A typewriter baseplate attachment for generating electrical signals that identify operations performed by the typewriter wherein, through the actuation of solenoids located in the baseplate attachment, the keys of the typewriter can be depressed to initia... | 03/05/1985 |
| 4381553 | Programmable printer controller with multiline buffering and overstrike feature This controller may be used to direct operations of a remote station impact line printer whose data source is a host computer. The controller includes a microprocessor (CPU), a memory large enough to accomodate a plurality of lines of textual data, and ho... | 04/26/1983 |
| 4344713 | Character overprinting method and apparatus in non-impact printers A character overprinting apparatus and method for overprinting in a laser non-impact printer is disclosed. Control bits are generated and assigned to data words transmitted from a host system. An underline control bit identifies whether the associated dat... | 08/17/1982 |
| 4235554 | Keyboard signal storage mechanism A coded electric signal generating keyboard for a single element typewriter is disclosed which has a keylever signal storing function and includes an interlock mechanism for permitting only one interposer at a time to be moved out of its normal position. ... | 11/25/1980 |
| 4101224 | Escapement mechanism for typewriters Disclosed is a mechanism for replacing the non-escapement magnet normally utilized to inhibit escapement during certain machine functions on a typewriter. A detent arm is connected to the normal pawl knock-off arm so that upon the print shaft rotating and... | 07/18/1978 |
| 3977510 | Automatic function mechanism for typewriters A method and mechanism for automatically performing typewriter functions such as backspacing and disabling the escapement mechanism of a typewriter. A ribbon cartridge carrying actuating abutments is inserted into the typewriter whereupon the abutments en... | 08/31/1976 |
