An Improved Method of Locking Nuts Employed on Pit Tram Corve or Carriage Pedestals.
Year: 1888

page_text: Date of Application, 5th Sept., 1888
Complete Specification Left, 25th May, 1889-Accepted, -13th July. 1889
PROVISIONAL SPECIFICATION.
An Improved Method of Locking Nuts Employed on Pit Tram Corve
or Carriage Pedestals.
We, JOHN HENRY WALES LAVERICK, Assistant Colliery Manager, and EDWARD
FARNSWORTH, Engine wright, both of Pye Hill, Nottinghamshire, do hereby declare
the nature of this invention to be as follows :-
Beneath the flange of each pedestal, a square hole is formed in the direction of the
length of the flange, when the pedestal has been secured in position to the framing of
the corve or carriage by the screwed pins and nuts, the latter are prevented from
getting loose and coming off by a key being driven into the hole in the pedestal, the
ends of the key locking the nuts, said key has a shoulder raised on it near one end,
this shoulder rests on one side of the pedestal and a pin is rivetted into the key at the
other side of the pedestal, we thus dispense with rivetting the pin ends on the nuts,
and can readily remove the key and take off the pedestal if required without damage
to either pedestal, key, pins or nuts.
Dated this Bounth day of Santambar 1988
An Improved Method of Locking Nuts Employed on Pit Tram Corve
or Carriage Pedestals.
We JOHN HENRY WALES LAVERICK, Assistant Colliery Manager, and EDWARD
FARNSWORTH, Engine wright, both of Pye Hill, Nottinghamshire 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 :-
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a side view of a pedestal secured to the underframing of a pit corve
or carriage.
Figure 2 an end view of the same.
Figure 3 is an underside view showing a key locking the nuts.
Figure 4 is a side view of the key and a lead rivet.
Beneath the flange of each pedestal, square holes A, are formed in the direction of
the length of the flange, when the pedestal has been secured in position to the framing
of the corve or carriage by the screwed pins and nuts B, the latter are prevented from
getting loose and coming off by a key being driven into the holes in the pedestal,
the key fits up to the nuts near each end of the pedestal and securely locks them.
The key is kept in position by having a shoulder C₁ raised on it, which prevents it
from passing too far through the holes in the pedestal, and a pin D of lead, copper, or
other metal, is rivetted into the key at the other side of the pedestal. By the above
described method the pedestal is securely attached to the corve or carriage and cannot
get loose while at work, the rivetting of the pin ends on the nuts is dispensed with, as
by cutting off the ends of the pin D, the key may be knocked out of the pedestal, and
the pins and nuts may be removed without being destroyed when repairs are
required.
The breakage of wheels and axles heretofore caused by the pedestal getting off is
Lavoided

page_text: Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
1. The improved method of locking nuts employed on pit tram corve or carriage
pedestals, substantially as described and illustrated in the Drawings annexed.
•
Dated this Twenty-seventh day of May 1889.
H. W. GOUGH, C.E.,
Agent..