US3625331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Type head positioning apparatus
Assignee: TA Triumph-Adler GmbH
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Filing: 1969-06-17
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Granted: 1971-12-07
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Expires: 1989-06-17
Abstract
Abstract The type head of a typewriter or like business machine is turned about perpendicular axes by two incremental links in order to place a character selected by actuation of a key, in a printing position. Each incremental link is placed in a plurality of angular positions by two eccentric means which are coupled or disengaged from two drive shafts under the control of electromagnetic means energized by key switches.
Inventors
- 👤 Hermann Waldenburger
- 👤 Herbert Decker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:40
CPC Classifications
B; B41; B41J; B41J7/00; B41J7/54; B41J7/56
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
415 words
Type head positioning apparatus comprising, in combination a pair of drive shafts; first and second pairs of eccentric means, the eccentric means of each pair being mounted on said driven shaft means, respectively, first and second pairs of one-way clutch means mounted on said shaft means, respectively, each clutch having a disengaged position and a coupling position connecting the respective shaft means with the respective eccentric means for angular movement with the same; first and second pairs of control means for said first and second pairs of clutch means, respectively, each control means having first and second positions for moving the respective clutch means to said coupling position, and back to said disengaged position after angular displacement of the respective eccentric means for a predetermined angle; first and second pairs of operating means connected with said first and second pairs of control means, respectively, for moving the said control means between said first and second positions; a plurality of selector means respectively associated with alphanumerical characters, each selector means controlling said first and second pairs of operating means in accordance with a code so that said eccentric means of each of said first and second pairs of eccentric means are placed in different angular positions relative to the respective other selector means of the respective pair when different selector means are actuated; first and second rigid incremental links mounted on said eccentric means of said first and second pairs of eccentric means, respectively, and engaged by the same at two longitudinally spaced points, respectively, for being placed in different angular incrementally spaced positions when the respective eccentric means of said first and second pairs of eccentric means are in said different angular positions; mounting means; a type head supported on said mounting means for angular movement about first and second axes perpendicular to each other, said type head having character types associated with said characters of said selector means, respectively, and disposed in a plurality of circular rows concEntric with said first axis and forming arcuate columns concentric with said second axis; first and second transmissions connecting said first and second incremental links, respectively, with said type head so that upon movement of a selector means associated with a character, said first and second incremental links and said first and second transmissions angularly displace said type head about said first and second axes, respectively, to a position in which the character type associated with the character of the actuated selector means is disposed for printing.
Claim 2
Dependent Claim
415 words
Type head positioning apparatus comprising, in combination a pair of drive shafts; first and second pairs of eccentric means, the eccentric means of each pair being mounted on said driven shaft means, respectively, first and second pairs of one-way clutch means mounted on said shaft means, respectively, each clutch having a disengaged position and a coupling position connecting the respective shaft means with the respective eccentric means for angular movement with the same; first and second pairs of control means for said first and second pairs of clutch means, respectively, each control means having first and second positions for moving the respective clutch means to said coupling position, and back to said disengaged position after angular displacement of the respective eccentric means for a predetermined angle; first and second pairs of operating means connected with said first and second pairs of control means, respectively, for moving the said control means between said first and second positions; a plurality of selector means respectively associated with alphanumerical characters, each selector means controlling said first and second pairs of operating means in accordance with a code so that said eccentric means of each of said first and second pairs of eccentric means are placed in different angular positions relative to the respective other selector means of the respective pair when different selector means are actuated; first and second rigid incremental links mounted on said eccentric means of said first and second pairs of eccentric means, respectively, and engaged by the same at two longitudinally spaced points, respectively, for being placed in different angular incrementally spaced positions when the respective eccentric means of said first and second pairs of eccentric means are in said different angular positions; mounting means; a type head supported on said mounting means for angular movement about first and second axes perpendicular to each other, said type head having character types associated with said characters of said selector means, respectively, and disposed in a plurality of circular rows concEntric with said first axis and forming arcuate columns concentric with said second axis; first and second transmissions connecting said first and second incremental links, respectively, with said type head so that upon movement of a selector means associated with a character, said first and second incremental links and said first and second transmissions angularly displace said type head about said first and second axes, respectively, to a position in which the character type associated with the character of the actuated selector means is disposed for printing.
Claim 3
Dependent Claim
64 words
Apparatus as claimed in claim 1 wherein said eccentric means of said first pair of eccentric means each includes an inner circular eccentric disk, and an outer annular eccentric disk mounted on the periphery of said inner eccentric disk for turning movement; and wherein said clutch means connect said inner and outer eccentric disks of the same eccentric means with the same shaft means.
Claim 4
Dependent Claim
37 words
Apparatus as claimed in claim 1 wherein each selector means includes a set of code switches; wherein each operating device includes an electromagnet; and comprising electric circuit means connecting said sets of code switches with said electromagnets.
Claim 5
Dependent Claim
46 words
Apparatus as claimed in claim 1 wherein each control means include a pair of pivotally mounted control levers movable between said first and second positions for moving the respective clutch means to said coupling position, and after angular displacement of 180* back to said disengaged position.
Claim 6
Dependent Claim
65 words
Apparatus as claimed in claim 1 comprising a support bar for guiding one end of one of said incremental links along a straight path in one direction; and wherein each eccentric means includes a circular eccentric disk and a wheel flange on said disk, said wheel flanges engaging opposite sides of said one incremental link adjacent said slot for laterally guiding said one incremental link.
Claim 7
Dependent Claim
54 words
Apparatus as claimed in claim 1 wherein said first transmission includes a rack bar connected with one end of said first incremental link for longitudinal movement between equally spaced positions, and a pinion meshing with said rack bar and being secured to said type head for rotation with the same about said first axis.
Claim 8
Dependent Claim
66 words
Apparatus as claimed in claim 6 wherein said second transmission includes an angular lever connected with one end of said second incremental link, a shaft turnable about said second axis and having an arm connected with said angular lever, said shaft having a carrier portion turnable with said type head about said second axis, and supporting said type head for turning movement about said second axis.
Claim 9
Dependent Claim
56 words
Apparatus as claimed in claim 1 comprising a casing enveloping said eccentric means, said clutch means, said control means, said operating means, said incremental links, said transmissions, and said mounting means so that said type head is supported on said casing; and wherein said two shafts are supported on said casing and pass through the same.
Claim 10
Dependent Claim
131 words
Apparatus as claimed in claim 8 comprising an elongated platen extending in one direction; rail means supporting said casing for movement in said one direction so that said type head moves along said platen; a drive shaft means extending in said one direction parallel to said platen and passing through a portion of said casing; a gear mounted on said drive shaft means in said casing portion movable relative to said drive shaft means in axial direction of the same while being connected for rotation with the same; gear mounted on said two driven shaft means respectively, and being in meshing connection with said gear so that said driven shaft means rotate in synchronism with said drive shaft means and said casing can move as a carriage along said rail means.
Claim 11
Dependent Claim
59 words
Apparatus as claimed in claim 9 wherein said first and second pairs of operating means include electromagnets; comprising a cable connected with said electromagnets and including a plurality of conductors respectively cOnnected to said electromagnets; a selector switch connected with each conductor, said selector means including contacts arranged in accordance with a code for selectively closing said selector switches.
Claim 12
Dependent Claim
123 words
Apparatus as claimed in claim 10 wherein said first and second rigid incremental links have first and second longitudinal slots, respectively; and wherein said eccentric means of said first and second pairs of eccentric means include first and second eccentric circular disks, respectively, having a diameter equal to the transverse dimension of said first and second slots in the respective first and second links, and being located in said first and second slots, respectively, in sliding engagement with the longitudinal edges of the same, said first and second circular disks engaging said first and second slots, respectively, at longitudinally spaced points so that relative turning of said first and second disks, respectively, causes angular displacements of said first and second rigid incremental links.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |