24-07-2018, 08:02 PM
(This post was last modified: 24-07-2018, 09:05 PM by Jeff Taylor.)
Unfortunately I can't help regarding either of your two questions - A) positioning on what little chassis extension rail there actually is aft of the rear crossmember (bearing in mind the rear crossmember is some way forward of the rear axle) or B) how the carrier locks into position horizontally - the first catalogue illustration below may be of help in that regard. As with AustinWood, I'm not aware of any RP Saloon luggage racks having been produced by the Austin Motor Co. themselves.
The 'Aftermarket' motor accessory companies however obviously did, as can be seen from this 1938 Motor Factors Catalogue - the "SUPER EASYFIT" grid no. SE/8N would appear to have been specifically made to fit the RP Saloon and '35 Tourer - back then of course the luggage rack brackets would be bolting to virtually new bodywork / floorpan steel - 80 odd years on that steel is very much thinner and a lot less strong hence everyones concern at trying to attach a luggage grid together with the weight of any luggage you may wish to carry to the body / floorpan steel. The one you've bought at Glamis may not of course be a model SE/8N or equivalent aftermarket A7 rack so your attachment brackets may differ and the pressed steel grid itself could be wider - I notice yours has five open pressings, the one on the left in the catalogue presumably meant for smaller sized cars like the Seven has four. Sorry I can't be of more help - hopefully an RP saloon owning forum member with a luggage rack fitted may be along soon to advise.
Also of interest, the EASYFIT "MIDGET" single fold grids were available for the Austin 7 1927/28 Gordon England Saloons, 1928/29 Mulliner Fabric Saloons and the 1933/34 RP Saloon / 1935 Tourer. The platform measurement was 29.5" x 9.5".
The 'Aftermarket' motor accessory companies however obviously did, as can be seen from this 1938 Motor Factors Catalogue - the "SUPER EASYFIT" grid no. SE/8N would appear to have been specifically made to fit the RP Saloon and '35 Tourer - back then of course the luggage rack brackets would be bolting to virtually new bodywork / floorpan steel - 80 odd years on that steel is very much thinner and a lot less strong hence everyones concern at trying to attach a luggage grid together with the weight of any luggage you may wish to carry to the body / floorpan steel. The one you've bought at Glamis may not of course be a model SE/8N or equivalent aftermarket A7 rack so your attachment brackets may differ and the pressed steel grid itself could be wider - I notice yours has five open pressings, the one on the left in the catalogue presumably meant for smaller sized cars like the Seven has four. Sorry I can't be of more help - hopefully an RP saloon owning forum member with a luggage rack fitted may be along soon to advise.
Also of interest, the EASYFIT "MIDGET" single fold grids were available for the Austin 7 1927/28 Gordon England Saloons, 1928/29 Mulliner Fabric Saloons and the 1933/34 RP Saloon / 1935 Tourer. The platform measurement was 29.5" x 9.5".