Typing error correction device
OwnerFrederick Harold Humphreyinventor
Life of this patent
Estimating the term…
Abstract
An apparatus for use with a typewriter is described. The apparatus is adapted to be utilized with a variety of typewriters, regardless of typewriter configuration, and permits a correcton ribbon or tape to be fed through the standard ribbon guide between the inked ribbon and the platen. The apparatus includes two spool housings, one on either side of the typewriter, each housing being capable ofl attachment to the typewriter housing as by double-faced adhesive tape. Each housing has a pivotally mounted guide portion defining an edge around which the ribbon can bend, to allow the correction ribbon to be directed horizontally across the typewriter from one housing to the other.
Claims5
Apparatus for use with a typewriter, comprising:
- a first support means supporting a first spool for holding correction ribbon, the spool being mounted for rotation with respect to the first support means,
- first attachment means permitting the first support means to be affixed to the outer cover of a typewriter at one side thereof,
- a first ribbon guide pivotally mounted on said first support means, and having a first guide edge around which the ribbon can bend, whereby the orientation of said first guide edge can be manually determined, the first ribbon guide having visible alignment means to allow the user to know when the first guide edge is oriented perpendicular to a table surface supporting a typewriter to which the apparatus is affixed,
- a second support means supporting a second spool for receiving correction ribbon, the second spool being mounted for rotation with respect to the second support means,
- an indexing member adapted positively to rotate the second spool by increments,
- second attachment means permitting the second support means to be affixed to the outer cover of a typewriter at the other side thereof,
- and a second ribbon guide pivotally mounted on said second support means, and having a second guide edge around which the ribbon can bend, whereby the orientation of said second guide edge can be manually determined, the second ribbon guide having visible alignment means to allow the user to know when the second guide edge is oriented perpendicular to a table surface supporting a typewriter to which the apparatus is affixed,
- each said support means including a housing which defines a protective compartment containing the respective spool, the correction ribbon having access to and egress from each compartment through an opening configured to allow unrestricted movement of the ribbon therethrough regardless of the angular orientation of the ribbon with respect to the housing, the respective guide edge for each support means being located outside of but adjacent to the respective said opening;
- each said visible alignment means being constituted by an alignment finger extending perpendicular to the respective guide edge, whereby the alignment finger when oriented parallel to a table surface ensures that its respective guide edge is perpendicular to the table surface;
- each ribbon guide being frictionally mounted to its respective support means such that it will remain in any orientation until torque is applied to change the orientation.
Dependencies are inferred from the claim text.