US3797631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper roll support for typewriters
Assignee: Individual
•
Filing: 1972-10-18
•
Granted: 1974-03-19
•
Expires: 1992-10-18
Abstract
Abstract A paper roll support for attachment to a typewriter having saddle means for engaging horizontal shafts on the right and left hand sides of a typewriter for forming a part of the support, another part of the support being a means for engaging the upright surface of the backside of the carriage of a typewriter.
Inventors
- 👤 R Crone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:03
CPC Classifications
B; B41; B41J; B41J15/00; B41J15/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
392 words
A paper roll support for a typewriter of a type having a base having forward, rearward and right and left sides, a carriage movably mounted on said base for movement from side to side with respect to said base, said carriage having two horizontal shaft means having forward and rearward sides, each shaft means being elongated from right to left and one of said shaft means disposed on the right side and one of said shaft means on the left hand side of and mounted on said carriage, said paper roll support comprising: right and left spaced upstanding arm means disposable on the right and left sides of said carriage, right and left shaft-engaging saddles on the lower ends of said arm means respectively, each saddle having a concave inner surface, each said concave inner surface having an upper portion extending forwardly and rearwardly for engaging the upper side of the respective said shaft means, said saddles each having a forward portion extending downwardly for engaging the forward side of a respective one of said shaft means so as to restrain the respective saddle from moving rearwardly with respect to the respective shaft means, each said saddle having an upper portion for extending across the upper side of a respective one of said shaft means and on which said upper portion of said concave inner surface is formed, a back-engaging means having a back engaging portion disposed at a substantial spacing rearwardly from a line between said right and left saddles so that said back engaging portion can engage the back of said carriage, right and left elongated aligned paper roll axle means for receiving thereon open ends of a paper roll, said roll axle means each being attached to the upper end of a respective adjacent one of said arm means and extending inwardly therefrom, said right roll axle means being spaced from said left roll axle means, said right and left roll axle means each having aligned elongated roll-receiving outer surfaces disposed upwardly of said right and left saddles, said back engaging means having elongated right and left side portions attached thereto and extending upwardly therefrom and connected respectively to said right and left arm means for preventing said arm means from moving rearwardly, said back engaging means having a soft surface covering thereon to prevent abrasion of said carriage.
Claim 2
Dependent Claim
392 words
A paper roll support for a typewriter of a type having a base having forward, rearward and right and left sides, a carriage movably mounted on said base for movement from side to side with respect to said base, said carriage having two horizontal shaft means having forward and rearward sides, each shaft means being elongated from right to left and one of said shaft means disposed on the right side and one of said shaft means on the left hand side of and mounted on said carriage, said paper roll support comprising: right and left spaced upstanding arm means disposable on the right and left sides of said carriage, right and left shaft-engaging saddles on the lower ends of said arm means respectively, each saddle having a concave inner surface, each said concave inner surface having an upper portion extending forwardly and rearwardly for engaging the upper side of the respective said shaft means, said saddles each having a forward portion extending downwardly for engaging the forward side of a respective one of said shaft means so as to restrain the respective saddle from moving rearwardly with respect to the respective shaft means, each said saddle having an upper portion for extending across the upper side of a respective one of said shaft means and on which said upper portion of said concave inner surface is formed, a back-engaging means having a back engaging portion disposed at a substantial spacing rearwardly from a line between said right and left saddles so that said back engaging portion can engage the back of said carriage, right and left elongated aligned paper roll axle means for receiving thereon open ends of a paper roll, said roll axle means each being attached to the upper end of a respective adjacent one of said arm means and extending inwardly therefrom, said right roll axle means being spaced from said left roll axle means, said right and left roll axle means each having aligned elongated roll-receiving outer surfaces disposed upwardly of said right and left saddles, said back engaging means having elongated right and left side portions attached thereto and extending upwardly therefrom and connected respectively to said right and left arm means for preventing said arm means from moving rearwardly, said back engaging means having a soft surface covering thereon to prevent abrasion of said carriage.
Claim 3
Dependent Claim
120 words
The combination of claim 1 in which said right and left roll axle means each comprise: a horizontally extending member attached to the upper end of a respective one of said arm means, a retractable sleeve defining a part of the respective roll axle means and said sleeve having an outer sleeve surface defining one of said roll-receiving outer surfaces, said sleeve being movable back and forth legnthwise of said horizontally extending member, urging means including a spring and mounted in said sleeve and urging said sleeve inwardly from a respective arm means to engage in a paper roll, said sleeves being manually retractable by compressing said springs for moving said springs outwardly to release said paper roll for replacement.
Claim 4
Dependent Claim
144 words
The combination of claim 1 in which said arm means each have forward and rearward portions which are upstanding and which are joined together at their lower ends by said shaft-engaging saddles respectively on the right and left hand sides of the paper roll support, said arm means and saddles being formed of resilient wire and said saddles further having rearward portions spaced from said forward portions, said forward and rearward portions being disposed on forward and rearward sides respectively of a saddle recess so that when said forward and rearward portions receive a shaft means of sufficient diameter therebetween said forward and rearward portions can be sprung apart somewhat as the saddle is pushed downwardly onto a shaft means, said forward and rearward portions thereby resiliently gripping the underside of the forward and rearward sides of a respective one of said shaft means.
Claim 5
Dependent Claim
22 words
The combination of claim 1 in which: each said saddle upper portion is formed integrally with the respective said saddle forward portion.
Claim 6
Dependent Claim
51 words
The combination of claim 1 in which: said back-engaging means is entirely disposed a substantial distance rearwardly of said roll axle means respectively whereby the downward pressure of the weight of a paper roll on said roll axle means will be upheld by said back-engaging means and also by said saddles.
Claim 7
Dependent Claim
22 words
The combination of claim 1 in which: each arm means and respective saddle are formed of a single integral piece of wire.
Claim 8
Dependent Claim
92 words
The combination of claim 1 in which said saddles each also have a rearward portion spaced rearwardly from said forward portion, said saddles being resilient and flexible, each saddle having a recess formed by said concave inner surface and having the spacing of said forward and rearward portions lesser at one depth of said recess than at a greater depth of said recess and resiliently gripping the respective shaft means with at least half of the cross-sectional area of the respective shaft means deeper than said one depth of the respective recess.
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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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |