US3645372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic type element changing mechanism for single element typewriter
Assignee: International Business Machines Corp
•
Filing: 1969-12-31
•
Granted: 1972-02-29
•
Expires: 1989-12-31
Abstract
Abstract Type element changer mechanism for selectively interchanging type elements on a single element typewriter to provide a plurality of type fonts, selectively changeable under the control of a control unit allowing a typewriter having a memory and/or control unit to print several type fonts without manual changing of the type elements.
Inventors
- 👤 Newton G Noell
- 👤 Donald C Roller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:19
CPC Classifications
B; B41; B41J; B41J1/00; B41J1/60; B41J25/00; B41J25/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
105 words
A type element installation and removal mechanism for use with type elements of a single element typewriter comprising: a single type element having dual arm retainer spring means, said dual arm retainer spring means for retaining said type element on said typewriter; a slot in the tip of said type element, said slot oriented transverse to the arms of said dual arm retainer spring means; a stabber means for entering said slot, said stabber means having camming means for spreading the arms of said spring means, removal means slideably supported adjacent said stabber means, to engage and eject said type element from said stabber means.
Claim 2
Dependent Claim
105 words
A type element installation and removal mechanism for use with type elements of a single element typewriter comprising: a single type element having dual arm retainer spring means, said dual arm retainer spring means for retaining said type element on said typewriter; a slot in the tip of said type element, said slot oriented transverse to the arms of said dual arm retainer spring means; a stabber means for entering said slot, said stabber means having camming means for spreading the arms of said spring means, removal means slideably supported adjacent said stabber means, to engage and eject said type element from said stabber means.
Claim 3
Dependent Claim
122 words
An automatically selectably changeable type font typewriting apparatus comprising: a single type element typewriter; an indexable positioning means for selectably positioning type elements, said positioning means positioned above said typewriter; an index control means for controlling said indexable positioning means; a plurality of reciprocating installation and removal means carried by said positioning means for installing and removing said type elements with respect to a carrier which holds the type element in use at any time in the typewriter, and for storing said elements not being used on saId positioning means; said typewriter having a moving type element and a predetermined type element change position; thereby providing a changing apparatus for removal, installation and storing of type elements on a single element typewriter.
Claim 4
Dependent Claim
122 words
An automatically selectably changeable type font typewriting apparatus comprising: a single type element typewriter; an indexable positioning means for selectably positioning type elements, said positioning means positioned above said typewriter; an index control means for controlling said indexable positioning means; a plurality of reciprocating installation and removal means carried by said positioning means for installing and removing said type elements with respect to a carrier which holds the type element in use at any time in the typewriter, and for storing said elements not being used on saId positioning means; said typewriter having a moving type element and a predetermined type element change position; thereby providing a changing apparatus for removal, installation and storing of type elements on a single element typewriter.
Claim 5
Dependent Claim
40 words
An automatically selectably changeable type font typewriter as in claim 2, further comprising a magnetic record responsive control means, said typewriter, said index control means, and said installation and removal means being controlled by said magnetic record responsive control means.
Claim 6
Dependent Claim
48 words
An automatically selectable changeable type font typewriter as in claim 2 further comprising: an impression set means responsive to the position of said positioning means and engageable with said indexable positioning means to adjust the impression control means of said typewriter for each selected type element as selected.
Claim 7
Independent Claim
147 words
An apparatus for changing type elements on a single element typewriter comprising: means for positioning the type element at a predesignated change position; means for erecting said type element to a vertical position after said type element has been positioned at said predesignated change position; means for inserting a removal means into said type element to release said element from a carriage holding said type element; means for removing said type element from said typewriter, and storing said type element on an indexable positioning means, said removal and storage means positioned above said typewriter and carried by said indexable positioning means; means for indexing said indexable positioning means to a second position, for replacing a second type element on said typewriter; and means for adjusting the impression control of said typewriter to a preselected position, said position corresponding to the impression requirements of said second type element.
Claim 8
Independent Claim
147 words
An apparatus for changing type elements on a single element typewriter comprising: means for positioning the type element at a predesignated change position; means for erecting said type element to a vertical position after said type element has been positioned at said predesignated change position; means for inserting a removal means into said type element to release said element from a carriage holding said type element; means for removing said type element from said typewriter, and storing said type element on an indexable positioning means, said removal and storage means positioned above said typewriter and carried by said indexable positioning means; means for indexing said indexable positioning means to a second position, for replacing a second type element on said typewriter; and means for adjusting the impression control of said typewriter to a preselected position, said position corresponding to the impression requirements of said second type element.
Claim 9
Independent Claim
102 words
The method of changing type elements on a single element typewriter comprising the steps of: positioning the type element to a predesignated change position; erecting said type element to a vertical position; inserting a removal means into said type element to release said element, removing said type element from said typewriter; storing said type element on a indexable positioning means; indexing said indexable positioning means to a second position; installing a second type element on said typewriter; and simultaneously adjusting the impression control of said typewriter to a preselected position, said position corresponding to the impression requirements of said second type element.
Claim 10
Independent Claim
102 words
The method of changing type elements on a single element typewriter comprising the steps of: positioning the type element to a predesignated change position; erecting said type element to a vertical position; inserting a removal means into said type element to release said element, removing said type element from said typewriter; storing said type element on a indexable positioning means; indexing said indexable positioning means to a second position; installing a second type element on said typewriter; and simultaneously adjusting the impression control of said typewriter to a preselected position, said position corresponding to the impression requirements of said second type element.
References Cited (Backward Citations)
US2969864A
Cited
US3027988A
Cited
US3307672A
Cited
US3356198A
Cited
US3334721A
Cited
US3307677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |