Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 4332488 | Device for the control of the position of the type carrying element in typewriters A device for controlling the positioning of a single element type-carrier for typewriters or the like comprises a plurality of kinematic chains, each comprising a transverse rod connected with sliding elements fitted with cam windows suitable to control, ... | 06/01/1982 |
| 4313681 | Type disc positioning mechanism Mechanism responsive to discrete character signals is provided for selectively rotatably positioning a type disc clockwise or counterclockwise from a home position to present the selected character on the type disc for printing. The mechanism comprises a ... | 02/02/1982 |
| 4299503 | Character selection mechanism for a typewriter A character selection mechanism for a typewriter having a single type head with characters arranged in rows and columns thereon, which mechanism comprises, for either row selection and column selection similarly, a series of cams, a series of cam follower... | 11/10/1981 |
| 4297041 | Variable cam profile selection system for single element typewriter A variable cam profile selection system is disclosed having cams controlling both the tilt and the rotate motion of the single element typewriter. The tilt cam and rotate cam are mounted so that they may be moved with respect to their support to vary the ... | 10/27/1981 |
| 4225252 | Character selection for single element printer There is disclosed a selection mechanism for a single element printer comprising an operating link connected with the print element for the driving rotation thereof and having a first and a second input portion, and a modifying member having the link moun... | 09/30/1980 |
| 4146337 | Electric typewriter for multiple languages An electric typewriter for printing indicia includes indicia-selecting and typerwriting mechanisms. Keys are associated with the indicia through a mechanical matrix which controls the positioning of a ball containing the indicia.... | 03/27/1979 |
| 4094397 | Typewriter selection drive follower block and shuttle assembly A shuttle is disclosed which carries as part of its assembly at least a pair of follower blocks for providing the motion required to effect selection on a single element typewriter. The shuttle allows the follower blocks to provide the requisite motion an... | 06/13/1978 |
| 4059184 | Single print element selection apparatus with multiple selection inhibiting means Disclosed is a selection apparatus for a printer of the single element type wherein the single print element is carried by a print carrier. The carrier includes at least one cylinder having a plurality of axially spaced apart camming surfaces thereon, the... | 11/22/1977 |
| 4023665 | Power driven typewriter A typewriter comprising a shiftable carrier supporting a rotatable type drum having a plurality of circumferentially extending rows of type characters thereon. Typing keys, when depressed, condition actuators and cause engagement of a power driven cyclic ... | 05/17/1977 |
| 3981386 | Non return to home rack shift selection mechanism for a single element printer Disclosed is a mechanism for shifting the rack of a selection mechanism for a single element printer from one position to another in timed relationship to the translation of a barrel cam which provides the necessary mechanical input to control the amount ... | 09/21/1976 |
| 3980169 | Impact control for single element printer A single element type carrier having type characters with different printing areas is impacted against a recording medium with different impact intensities substantially corresponding to the different printing areas to effect uniform printing. The type ca... | 09/14/1976 |
| 3967715 | Intermittent drive system for typewriters An intermittent drive for a single-element printing typewriter, calculator or similar machine. The drive comprises a drive shaft couplable via a cycle clutch to a driven shaft and a governor disposed on the driven shaft to couple it with and maintain it a... | 07/06/1976 |
| 3957149 | Selector system for a type-bearing element of an office machine A selector system for a type-bearing element of a typewriter, accounting machine or other office machines, wherein a positioning member for the type-bearing element is positioned positively by a series of cam followers movable by a corresponding series of... | 05/18/1976 |
| 3948381 | Printer with non return to home rack shift selection mechanism Disclosed is a mechanism for shifting the rack of a selection mechanism for a single element printer from one portion to another in timed relationship to the translation of a barrel cam which provides the necessary mechanical input to control the amount o... | 04/06/1976 |
| 3930569 | Power driven typewriter with flexible type head A power driven typewriter comprising a shiftable carrier supporting a rotatable and axially movable flexible type drum having a plurality of circumferentially extending rows of type characters thereon. Type keys, when depressed, each condition one each of... | 01/06/1976 |