Improvements in Fastening and Securing Connecting Rod Straps to Connecting Rod Ends, such as are Used in Locomotive and other Steam Engines.
Year: 1888

page_text: Date of Application, 9th May, 1888
Complete Specification Left, 30th June, 1888
Complete Specification Accepted, 3rd Aug., 1888
PROVISIONAL SPECIFICATION.
Improvements in Fastening and Securing Connecting Rod Straps
to Connecting Rod Ends, such as are Used in Locomotive and
other Steam Engines.
GEORGE HUTCHINSON 48 Collingwood Street, Newcastle on Tyne, Patent Agent, and
SAMUEL SMITH YOUNGHUSBAND Rose Villa, Darlington, Engineer do hereby declare
the nature of this invention to be as follows:-
The invention consists of an improved constructed and arranged fastening and has
for its object the prevention of breakage to connecting rod straps, consequent upon
the breaking of connecting rod strap bolts. We use a dovetailed shaped key or clip
inserted partly into the connecting rod strap and partly into connecting rod end, and is
held in position by the aforesaid strap bolts and as the said dovetailed clip is impinging on
the strap and connecting rod end, thereby solidly holding them together, thus taking
the strain off the bolts.
Dated thin 8th law of Mov 1

page_text: Improvements in Fastening and Securing Connecting Rod Straps
to Connecting Rod Ends, such as are Used in Locomotive and
other Steam Engines.
We GEORGE HUTCHINSON of Newcastle on Tyne in the County of Northumberland
Patent Agent, and SAMUEL SMITH YOUNGHUSBAND of Darlington in the County of
Durham Engineer 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 has for its object to provide a fastening for securing connecting rod
straps to connecting rod ends, and which, while assisting or replacing the ordinary
strap bolts employed for that purpose shall also present an increased cross-section to resist
the shearing action due to the pull through the connecting rod, and thereby prevent
the breakage of connecting rod straps consequent upon the breaking of strap bolts.
Our invention consists in providing for each strap two or more clips or keys
of dovetail shape inserted transversely, partly into the connecting rod strap and partly
into the connecting rod end and held in position by the strap bolts.
In the accompanying sheet of illustrative drawings Fig. 1 is a side elevation of a
connecting rod end and shewing fastening clips or keys constructed according to our
invention, and Fig. 2 is a plan of the same.
The strap a is fitted with the brasses and cotter in the usual manner; but
instead of the strap fitting the connecting rod end d along the whole of its length
dovetailed clips or keys e are inserted transversely, partly into the connecting rod
strap a and partly into the connecting rod end d and are held in position by the strap
bolts as clearly shewn.
It will readily be seen that by means of the dovetailed clips or keys the strap and
rod end may be tightly drawn together to form a solid joint, and that owing to the
greater surface and cross section presented to resist the pull through the rod, the
shearing action is effectually resisted, and consequently the wear and breakage of the
strap bolts obviated.
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. In fastening and securing connecting rod straps to connecting rod ends; the
employment of clips or keys of dovetailed shape inserted transversely, partly into the
connecting rod strap and partly into the connecting rod end substantially as described.
2. The arrangement and construction of fastenings for securing connecting rod
straps to connecting rod ends substantially as described with reference to the
drawings.
Dated this 29th day of June 1888.