PART THREE – Patents
For completeness, I found two relevant patents on the Rover Thoroughbreds.

67968 of April 1974 for height adjustment improvements
67969 of April 1974 for handle improvements

The applicant was Rover Mowers but the actual inventor for
both patents was Douglas Flinders Green.

The height adjuster improvement was a simple idea most suitable
for domestic reel mowers. It enabled operators to repeat selected
cutting heights by aligning a gauge bar with a decal on the chaincase.

The handle bar improvement enabled the top handle to be
folded (for transport) but also permitted the top handle to be
rotated; to move it away from walls on the edging side
(opposite the chaincase). I guess the idea had some merit …

[Linked Image]
[Linked Image]

Attachments
67968_1974_rover.pdf (180.13 KB, 15 downloads)
ROVER PATENT 67968 - HEIGHT ADJUSTER
67969_1974_rover.pdf (223.14 KB, 13 downloads)
ROVER PATENT 67969 - HANDLE ADJUSTER