Recording Devices (Patent No: 623869)

Inventor: Graham, Robert

Location: Bowness

Comments: N/A

Description:
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. In a recording device having a housing with a drive motor in such housing and a plurality of superposed circular recording charts each slit radially and connected centrally to the drive motor to be rotated by the drive motor and a recording stylus in the housing positioned to record on one of the charts, spreading mechanism in sliding contact with the chart being recorded on by the stylus, such spreading means formed to pass under the rear edge of such chart to guide the chart over the stylus and allow the stylus to pass to the chart beneath.

2. In a recording device having a housing with a drive motor in such housing and a plurality of stacked circular recording charts each slit radially and connected centrally to the drive motor to be rotated by the drive motor and recording stylus in the housing positioned to record on one of the charts, spreading mechanism comprising a spreader bar extending diametrically across the charts in contact with the chart being recorded on by the stylus, such bar formed to intercept the rear edge of such chart and pass under the rear edge of the chart to guide the chart over the stylus and permit the stylus to pass to the chart beneath.

3. The recording device as claimed in Claim 2 and arms extending from the bar, such arms connected pivotally to the housing to allow the bar to be raised away from the charts and spring means, coating between the arms and the housing to hold the bar in the raised position or in frictional contact with the charts.

4. The recorder as claimed in Claim 2 wherein the spreader bar is wedge shaped to intercept the rear edge of the chart at it's narrowest portion and guide the chart over the stylus.

5. In a recording device having a housing with a drive motor in such housing and a plurality of superposed circular recording charts each slit radially and connected centrally to the drive motor to be rotated by the drive motor and a recording stylus in the housing positioned to record on one of the charts, an overlap secured to the rearward edge of each of the charts to overlap the forward edge of such chart, spreading mechanism in sliding contact with one of the charts, such spreading mechanism formed to pass under the overlap of the chart being recorded on by the stylus to guide the overlap and the chart over the stylus and allow the stylus to pass to the chart beneath.

6. A recording chart for use in a continuous recording mechanism comprising a circular chart having a central opening therein for connection to a drive mechanism and a radial slit leading from the centre of the chart to the periphery thereof, an overlap secured to one edge of the chart at the radial slit to overlap the opposite edge of the chart at the radial slit.

7. The chart as claimed in 6 wherein the overlap secured to the chart is of less flexible material than the chart.

Bishop, McKenzie Be Co.
Barristers Be Solicitors
303 Alexandra Building
Edmonton, Alberta
Patent Agents of the Applicant.