US3710915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ribbon supply supporting structure in typewriters and similar machines
Assignee: TA Triumph-Adler GmbH
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Filing: 1970-07-13
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Granted: 1973-01-16
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Expires: 1990-07-13
Abstract
Abstract In a typewriter, a member carries and conceals normally an ink ribbon supply, such as a roll, in a flatly contiguous relation to one side of the machine, and is supported on a structure so that it can be elevated and then swung outwardly from the machine for facilitating replacement of the ribbon supply in a horizontally flat and elevated posture thereupon. Said member carries the supply roll by an arbor which has a device associated with it which as the ribbon is drawn off the supply roll, energizes a spring in order to oppose or cancel out resiliently excessive pay-off of ribbon from the supply roll.
Inventors
- 👤 F Teichmann
- 👤 H Hengelhaupt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:28
CPC Classifications
B; B41; B41J; B41J31/00; B41J31/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
A ribbon supply arrangement for a typewriter or similar machine, the combination comprising: support means for supporting said ribbon supply arrangement in the machine, a ribbon mounting member for supporting a supply of ribbon in a ribbon feeding position at a ribbon supply station in the machine, a carrier mounted on said support means for supporting said ribbon mounting member at the ribbon supply station in the machine, said carrier being slidably mounted on said support means for movement to an elevated position thereon to carry said ribbon mounting member from the ribbon feeding position at the ribbon supply station to an elevated position, said ribbon mounting member being pivotally connected to said carrier, and said ribbon mounting member being pivotally movable at the elevated position to a ribbon loading station for receiving thereon a supply of ribbon.
Claim 2
Dependent Claim
138 words
A ribbon supply arrangement for a typewriter or similar machine, the combination comprising: support means for supporting said ribbon supply arrangement in the machine, a ribbon mounting member for supporting a supply of ribbon in a ribbon feeding position at a ribbon supply station in the machine, a carrier mounted on said support means for supporting said ribbon mounting member at the ribbon supply station in the machine, said carrier being slidably mounted on said support means for movement to an elevated position thereon to carry said ribbon mounting member from the ribbon feeding position at the ribbon supply station to an elevated position, said ribbon mounting member being pivotally connected to said carrier, and said ribbon mounting member being pivotally movable at the elevated position to a ribbon loading station for receiving thereon a supply of ribbon.
Claim 3
Dependent Claim
110 words
The invention defined in claim 1, and further comprising: an arbor for a ribbon supply roll turnably carried on said ribbon receiving member, brake means including resilient biasing means located between said arbor and said member for exerting a force thereagainst in a slip-drag contact, and said resilient biasing means being flexed through rotation of said arbor in a ribbon pay-off direction to subject said arbor to a resilient force which tends to drive it in ribbon winding direction, the extent of flexure of said resilient biasing means being limited by slippage of the slip-drag contact each time a given extent of flexure of said resilient biasing means is reached.
Claim 4
Dependent Claim
32 words
A ribbon supply arrangement according to claim 1, the combination further comprising detent means associated with said support means for engaging and releasably holding said slidably mounted carrier at the elevated position.
Claim 5
Dependent Claim
71 words
A ribbon supply arrangement according to claim 1, the combination further comprising: another support means associated with said support means and located in laterally spaced-apart relation therefrom adjacent said ribbon supply station for engaging said ribbon mounting member at the ribbon supply station as movement of said carrier brings said ribbon mounting member to the supply station to prevent pivotal movement of said ribbon mounting member from the ribbon feeding position.
Claim 6
Dependent Claim
45 words
A ribbon supply arrangement according to claim 1, wherein said ribbon mounting member has a rim formation with an upreaching posture upon said ribbon mounting member being pivotally moved to the elevated ribbon loading station for receiving thereon a supply of ribbon within said rim.
Claim 7
Dependent Claim
128 words
A ribbon supply arrangement according to claim 1, the combination further comprising: limit means associated with said support means for engaging said slIdably mounted carrier at the elevated position to limit further upward movement thereof, a stop rest associated with said support means and located in horizontally spaced-apart relation therefrom for being engaged by said ribbon mounting member upon pivotal movement of said ribbon mounting member to the ribbon loading position, and said stop rest engaging said ribbon mounting member at a location adjacent said pivotal connection to said carrier for enabling the downward force exerted by the weight of said ribbon mounting member to act about said stop rest to urge said slidably movable carrier against said limit means at the elevated position on said support means.
Claim 8
Dependent Claim
121 words
In a typewriter or similar machine, the combination comprising: an arbor for a ribbon supply roll turnably supported in said machine, a member located in said machine and being stationary relative to said arbor, brake means including resilient biasing means located between said arbor and said member for exerting a force thereagainst in a slip-drag contact, and said resilient biasing means being flexed through rotation of said arbor in a ribbon pay-off direction to subject said arbor to a resilient force which tends to drive it in ribbon winding direction, the extent of flexure of said resilient biasing means being limited by slippage of the slip-drag contact each time a given extent of flexure of said resilient biasing means is reached.
Claim 9
Dependent Claim
121 words
In a typewriter or similar machine, the combination comprising: an arbor for a ribbon supply roll turnably supported in said machine, a member located in said machine and being stationary relative to said arbor, brake means including resilient biasing means located between said arbor and said member for exerting a force thereagainst in a slip-drag contact, and said resilient biasing means being flexed through rotation of said arbor in a ribbon pay-off direction to subject said arbor to a resilient force which tends to drive it in ribbon winding direction, the extent of flexure of said resilient biasing means being limited by slippage of the slip-drag contact each time a given extent of flexure of said resilient biasing means is reached.
Claim 10
Dependent Claim
33 words
In the invention defined in claim 7, said brake means comprising a friction disk concentrically arranged with said arbor, and said resilient biasing means being a torsion spring connected with said friction disk.
Claim 11
Dependent Claim
39 words
In the invention defined in claim 8, said torsion spring being of cone-wound shape having one end connected with said friction disk and together therewith being situated axially of said arbor in compression between said arbor and said member.
Claim 12
Dependent Claim
31 words
In the invention defined in claim 9, said friction disk being in slip-drag contact with said member and the other end of said cone-shaped torsion spring being connected with said arbor.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |