US PATENT SUBCLASS 400 / 639.1
.~.~.~.~ Mounted on "paper bail"

Current as of: June, 1999
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400 /   HD   TYPEWRITING MACHINES

578  DF  SHEET OR WEB (E.G., RECORD-MEDIUM FEEDING MECHANISM) {13}
634  DF  .~ Including friction-feed means (e.g., band) {2}
636  DF  .~.~ By roller couple (e.g., rotatable pinch rollers, etc.) {8}
639  DF  .~.~.~ Including upper feed-roller(s) (e.g, pressure roller, etc.) {1}
639.1.~.~.~.~ Mounted on "paper bail" {1}
639.2  DF  .~.~.~.~.~> Disengaged from platen by compound movement of bail (e.g., on double pivoted mount)

DEFINITION

Classification: 400/639.1

Mounted on "paper bail":

(under subclass 639) Subject matter wherein the upper feed-roller(s)* is/are supported by a paper bail which term is discussed and defined in (1) Note below.

(1) Note. The term "paper bail" is the term used by the typewriter industry to refer to a particular structure that holds a paper sheet to a platen*. It usually includes a bar that extends along the length of the platen parallel to the axis thereof. An arm is affixed to each end of the bar, and the other ends of the two arms are pivoted about a common axis parallel to the platen axis, whereby the paper bail is hinged so that its bar overlies the platen. When a record-medium* is fed between the platen and the paper bail, the paper bail holds the record-medium to the platen.