Herbert William Garratt deposited his patent on 24. January 1908.
“.... By placing his fuell and water tanks on the bogies, Garratt not only lessened the strains and forces
on the pivot, but completely altered the existing concept of boiler design. While still retaining the basic
locomotive type, his design of engine enabled the boiler to the developed to almost the maximum permitted by
the loading gauge. The Fireboxes on Mallets had to be either narrow or shallow, to fit them in between, or over,
the driving wheels, and this also applied to the Meyer in its original form, the bogies being connected, with
the boiler, tanks, bunker and cab mounted on a single frame over them. While the Fairlie could have a deep
firebox, the width was limited because the double-ended boiler had to be fired from the side. The water
tanks and fuel bunkers also limited the diameter of the boilers on both Fairlie and Meyer. In 1894 Kitson of Leeds
improved the original Meyer concept by seperating the bogies and pivoting them individually under the boiler frame.
This gave the Meyer a mew lease of live, because the firebox could be dropped almost to rail level, but the width
was still restricted by the water tanks carried at the sides.”
(from Hills/Patrick "Beyer Peacock locomotive buildert to the world")