Improvements in Skeleton Mould Boards for Ploughs.
Year: 1894

page_text: Date of Application, 27th Dec., 1894-Accepted, 9th Feb., 1895
COMPLETE SPECIFICATION.
Improvements in Skeleton Mould Boards for Ploughs.
I, SAMUEL SALTER, of Wal Wal, near Stawell, in the Colony of Victorin,
Farmer, do hereby declare the nature of this invention, and in what manner the
same is to be performed to be particularly described and ascertained in and by the
following statement :—
This invention relates to those mould boards for ploughs which are made of
skeleton form that is, instead of their being formed from a solid sheet of metal thoy
are made up of backwardly projecting prongs or rods that are set to the curvature
of the ordinary mould board. These mould boards are extremely useful in sticky
o tenacious soils and can be worked during wet or inoist weather and further by
reason of the small fictional surface on the soil the draught power requisite
is considerably less than is required with the solid plate inould boards. My
improvements consist 1st of the ineans employed for securing and supporting the
back part of each round rod or prong forming the mould board and in such
a manner that their angle and pitch can be adjusted and 2nd of the means
employed for securing the fore end of each round bar prong to the foot or sharo
plate.
In the attached drawings,
Fig. 1 is a side view of a mould board constructed according to my invention, and
Fig. 2 an end view of same looking forward from line a a Fig. 1.
Fig. 3 is a view of one prong and shewing the means employed for securing it in
position while
Fig. 4 shews an alternative form of supporting bar.
A is the plough beam, A' its foot, and A' the share, B is a bent bar or bracket
the top part of which is secured by a clamp B' and key B' to the plough beam.
The bracket B is arranged at about the position shewn in Fig. 1 and it has four
holes in it to receive the screw stays C which are furnished with double nuts as
shewn, said stays have a solid tee head on them which is rivetted at about midway
of its length as shown in Fig 3 to the proug D which it is to support. The fore
end of each prong has an eye formed on it in order that it may be secured to
a plate E by a countersunk head bolt D. The said plate E niay be made as
a backward extension from the foot or share or it may be rivetted or otherwise
secured thereto. Fig. 4 shews the bar B provided with a long slot C' in place of
holes as shewn in Fig. 1, to receive the screw stays C.
The bars or prongs D forming the skeleton mould board are round and preferably
made of steel, and 1 find it a great advantage to have cach proug adjustably
secured in position by the sciew stay C and bracket B, and with an eye at its fore
end instead of all the prongs being welded and made a fixture-to a support or plate
thereat. By having each prong separately fixed I can adjust each or remove either
one or the other as in some classes of soil only three or even two may be necessary
and further by the bracket B being kept say four inches clear of the prongs it
allows freedom for the soil and the prongs are less liable to got clogged and
BO interfore with the proper working of the mould board.
Having now particularly described and ascertained the nature of any said inven-
tion and in what manner the same is to be performed I declare that what I
claim 18:-
(1.) A bracket or bar as B clamped to the plough frame combined with scrow

page_text: stays as C, the fore ends of which are screwed to the prongs of the mould board
substantially as herein described and as illustrated in my drawings.
(2.) The prongs of skeleton mould boards having an eye at then fore ends
to allow of their being bolted to the foot or share plate and having at about midway
of their length an adjustable supporting screw stay or bolt as C substantially as
herein described and as illustrated in my drawings.
(3.) A skeleton mould board for ploughs constructed in accordance with my
improvements as above claimed and as herein described and illustrated in my
drawings.
SAMUEL SALTER.
W. Lloyd Wis0,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.