A Noiseless Joint Connection for Vehicle Shafts and Machinery Rods.
Year: 1889

page_text: يا
Date of Application, 12th Apr., 1889
Complete Specification Left, 13th Jan., 1890-Accepted, 22nd Feb., 1890
PROVISIONAL SPECIFICATION.
A Noiseless Joint Connection for Vehicle Shafts and Machinery
Rods.
I, THOMAS WATTS of High Street Pershore in the County of Worcester, Carriage
Builder, do hereby declare the nature of this invention to be as follows:-
The shanks, or the extended inner ends of dog cart shafts, are usually connected
to the body of the vehicle at two points, viz. :-at the rear, and near the front (and
sometimes to the splinter-bar). The former connection is made by an interposed
spring, lying between the top sides of the extreme inner ends of the shafts, and the
underside back of the body, and sometimes with pivots and shackles, whilst the inner
connections are made by pivot joints, which allow the shafts to deflect or bend in
accordance with the change of position of the said body. The pivot joints of such
connections after a little wear, become loose, and "chatter," in consequence of the
metallic parts of the said joints, coming in contact with each other, on the jolting and
running of the vehicle.
The primary object of my invention, is to obviate this defect, by making the joints
or the connections, noiseless, by substituting for the said joints or connections, yielding
fulcrums in the form of rubber blocks, upon which the undersides of the shafts near
the front of the body of the vehicle, take their bearings.
I will first describe my invention in connection with the shafts of a two-wheeled
dog-cart.
The noiseless attachment of the one part, consists of an open topped fulcrum box,
or hollow casting, gapped on its underside, and provided with opposite bossed eyes
or short necks, directed from the opposite inner and outer walls or sides, respectively,
of the said fulcrum box. The middle of the bottom of the box or lower casting, is
countersunk, with a hole, wherein the square head of a hanging screw pin fits, for
connecting the said fulcrum box to the eye of the bracket, connected to the body of
the vehicle, and which is accomplished by a screw nut on the end of the screw pin,
with a washer interposed between the top side of the said bracket, and the underside
of the fulcrum box.
The hollow of the fulcrum box is larger than the recess to be left for the reception
of the rubber block, which has an elongated axial hole through its middle, wherein
a transversely directed screw pin, which takes through the bossed eyes as aforesaid,
passes, in securing or connecting the parts together.
The attachment of the other part, consists of a fulcrum plate, with connection ears
for securing it to the underside of the shaft of a vehicle, near the front of the body
part; and which said plate, which has a gap through its middle of the horizontal
section of the rubber block, carries upon its underside, a sleeve bracket, which when
in position, takes upon the bossed eyes or necks of the other part as aforesaid:
Thus, the yielding connection is put together in manner following.
Pass the bracket upon the underside of the fulcrum plate, into the hollow of the
fulcrum box, then move laterally the said box, so as to thread its bossed eyes or necks
into the sleeves of the depending bracket of the fulcrum plate, and which is done
by a sliding motion, which thus leaves a cavity within the middle of the castings,
wherein the rubber fulcrum block is placed, and there secured, by a transversely
directed pin, taking through the whole of the parts as aforesaid.
The upper part of the rubber fulcrum block extends beyond the inner face, or
inner side of the fulcrum plate, and takes its bearing upon the underside of the shaft
in such a manner, that on nuts being screwed upon pins proceeding from the shaft,
and passing through eyes or holes in or through the fulcrum plate, the rubber block
is forced fully into the interstices of the combined and separated castings, which are
.

page_text: kept asunder, and protected from "chattering," by the elastic pressure exerted by the
said block.
Thus, the shaft instead of bending or deflecting itself upon a pivot centre, turns
about a fulcrum block, which yields in obedience to the pressure and deflection of the
shaft.
By making connections as aforesaid, the attachments become noiseless and without
play.
In applying my invention to machinery rods, such as are employed in pumping
appliances, the bracket with the lower casting is connected to a travelling slide, and
with the yielding connection disposed at a suitable distance from the inner end; so
that the deflection or bending of the rod is made about the rubber block as a centre,
making a combined reciprocating and rotary movement.
Although I have described that the yielding fulcrum block is carried within a
recess formed between the locking together of two castings, yet I wish it to be under-
stood that the said separate and independent castings may be varied, so long as a
suitable recess for the reception of the block is produced.
The inner or body ends of the shafts, instead of being attached to the sides of the
said body, may pass through it; and further, the body of the vehicle may be mounted
upon opposite springs, whose ends rest upon the inner ends of the shafts.
Dated this Tenth day of Anril 1889
THOMAS WATTS.
By Henry Skerrett,
Agent for Applicant.
COMPLETE SPECIFICATION.
A Noiseless Joint Connection for Vehicle Shafts and Machinery
Rods.
I THOMAS WATTS of High Street, Pershore, in the County of Worcester Carriage
Builder 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 :-
-
The shanks, or the extended inner ends of dog-cart shafts are usually connected to
the body of the vehicle at two points viz.:-at the rear, and near the front, and
sometimes to the splinter bar. The former connection is made by an interposed
spring, lying between the top sides of the extreme inner ends of the shafts, and the
under side back of the body, and sometimes with pivots and shackles whilst the
inner connections are made by pivot joints, which allow the shafts to deflect or bend
in accordance with the change of position of the said body.
The pivot joints of such connections after a little wear become loose and "chatter "
in consequence of the metallic parts of the said joints, coming in contact with each
other in the jolting and running of the vehicle.
The primary object of my said invention is to obviate this defect, by making the
joints or the connection noiseless, by substituting for metallic joints, yielding ones,
in the form of rubber blocks, upon which the undersides of the shafts of a vehicle
take their bearings.
I will first describe my invention in connection with the shafts, of a two-wheeled
dog-cart.
The noiseless attachment of the one part consists of an open topped fulcrum box,
or hollow casting, gapped on its under side, and provided with opposite bossed eyes
or short necks, directed from the opposite inner and outer walls or sides respectively
of the said fulcrum box. The middle of the bottom of the box or hollow casting, is
countersunk, with a hole, wherein the square head of a hanging screw pin fits, for
connecting the said fulcrum box to the eye of the bracket, connected to the body of
the vehicle, and which is accomplished by a screw nut on the end of the screw pin,
with a washer interposed between the top side of the said bracket and the underside
of the fulcrum box.

page_text: The hollow of the fulcrum box is larger than the recess necessary to be left for
the reception of the rubber block, which has an elongated axial hole through its
middle, and wherethrough a transversely directed screw pin, which also takes
through the bossed eyes, as aforesaid, passes, in securing or connecting the parts
together.
The attachment of the other part, consists of a shaft plate, with connection cars
for securing it to the underside of the shaft of a vehicle, this said plate has a gap
through its middle of the horizontal section of the rubber block and bracket eyes
upon its underside which when in position takes upon the bossed eyes or necks of the
other part as aforesaid.
The yielding connection is put together in manner following-
Pass the bracket eyes upon the underside of the shaft plate into the hollow of the
fulcrum box, then move laterally the said plate so as to thread the bossed eyes or
necks of the one part into the eyes of the other part and within the cavity of the lower
part and the hole of the upper one a rubber block is fitted and there secured, by a
transversely directed pin taking through the block and connection.
The upper part of the rubber fulcrum block extends above the top face or inner
side of the shaft plate and takes its bearing upon the underside of the shaft in such
a manner that on screw nuts of shaft attachments being screwed home the rubber
block is forced fully into the interior of the combined and separated castings, which
are thereby kept asunder and prevented from "chattering consequent upon the
pressure exerted by the said yielding block.
Thus the shafts instead of bending or deflecting themselves upon unyielding pivot
centres, slightly turn about an interposed rubber block, which yields in obedience to
the pressure and deflection of the shaft.
By making connections as described the joints are noiseless and without play.
In applying my invention to machinery rods, such as are employed in pumping
appliances differs in no essential respect from its application to that of a vehicle.
Figure 1 of the accompanying drawings, represents in side elevation, a two wheeled
vehicle, provided with noiseless shaft connections, constructed and arranged according
my said invention.
to
Figure 2 represents a transverse vertical section of the rear connection, upon an
enlarged scale to that of figure 1, whilst figure 3 also represents a transverse vertical
section of the front noiseless connection.
Figure 4 is a top side plan of figure 2, whilst figure 5 is a top side plan of
figure 3.
Figure 6 represents a longitudinal vertical section of the said connection, upon the
dotted lines A B figure 3 and figure 7 represents a transverse vertical section upon
the dotted lines CD, figure 5.
The only difference between the said sections figures 6 and 7, is that the cushion
fulcrum, or rubber block, which is interposed between the inside of the metallic
attachment parts, and the underside of the shaft, is shown distended, and without the
shaft pressing upon it.
Figure 8 represents a front elevation of the said connection, and figure 9 a side
view of it.
Figure 10 represents a section of the cushion fulcrum box, and figure 11 the
connection plate of it.
a is an open topped fulcrum box or hollow casting, provided with gapped sides a³,
and necks a, one of which latter, is directed inwardly from the inner walls of the
said hollow casting, whilst the other is directed outwardly from the outer walls
or sides.
Directed vertically through the bottom of the said casting is a hole a*, wherethrough
a connecting screw pin b, passes and fits, and by means of which, the attachment
is connected, by the passing of the screw nut 63, upon the wormed end of the
said banging screw.
arm c,

page_text: d, is a fulcrum or shaft attachment plate, and e, is the shaft, to which the said plate
is attachedly connected, by bolts or strap clips f, passing through or around the said
shafts, and with their wormed ends fitted with screw nuts, for making the necessary
attachment.
This said plate d, has hanging eyes or bracket bearings d³, which take upon the
necks a, of the box casting a, as aforesaid.
Fitted within the hollow of the fulcrum box or casting a, and extending or
protruding through the open middle, d³, of the attachment plate d is a rubber or
other yielding block 9, constituting a cushion fulcrum, which when in position as
in figures 1, 2, 3, and 6 interposes between the undersides of the shaft and the bottom
and insides of the casting a.
Directed transversely through the hollow necks a³, of the box casting a, and the
eyes, of the shaft plate d, and also the middle of the rubber block, is a pin h, with
a head h³, at one end, and a screw nut h, at the other end, whereby the whole of the
parts of the attachment are connected together.
The parts of the connection are put together as follows.
First pass the hanging screw pin b, in position and thread the shank of it through
the attachment arm, then screw home the screw nut 6 upon the screwed end of the
said pin.
Then pass the bracket eyes d³, into the hollow a, of the box casting a, and by
a lateral sliding motion from right to left, of the said shaft plate d, the bracket
eyes d, are passed onto the necks a³, as represented in the views figures 6, 7 and 9,
this done, insert the rubber block g, through the middle opening d, of the shaft
attachment plate d, into the hollow a, of the casting a, and with the said block g,
resting at the bottom of the said casting, and with its upper end protruding or
standing above the top side of the plate d.
The said shaft attachment parts as aforesaid are secured or connected together,
and the cushion fulcrum retained in its place, by the passing through the said parts,
of the pin h, which is then secured by the nut h³.
In affixing the noiseless connection, place the underside of the shaft upon the top of
the rubber block, and pass the ends f, of the screw pins or bolts f, through the holes
or eyes d', made through the ears d³, of the attachment plate d, when on the screwing
home of the nuts f³, the connection is made.
It will thus be seen, that the upper part of the rubber block extends above the
top side of the shaft attachment plate, and takes it bearing upon the underside of
the shaft, in such a manner, that the rubber block, on pressure being applied, is forced
into the hollow of the castings, and plate and through the interstices or gaps i,
between them, thereby keeping asunder the said métallic parts and preventing the
joints from chattering.
It will also be observed, that the shaft attachment plate d or the bearings & of it
turn upon the bearing necks a³, of the other part.
In figure 1 it will be seen that the noisless connections are attached to the body of
the vehicle, whilst in figure 12, the front attachment is applied to the splinter bar
marked j.
Figure 13 represents my new or improved connection, as applied to machinery rods,
for communicating motion for various purposes.
a is a box casting, an attachment plate, c a rod, connected to the box casting a,
and is a second rod, with a Ț end, which is bolted to the flanges, of the said
attachment plate d, by bolts d³, and interposed between the said parts a, and d, is a
rubber block g, fitted in position by a cross pin h, which passes through the necks a³,
and eyes d', of the parts a, and d, respectively.
Figure 14 represents an edge view of figure 13. Instead of employing a rubber
block, a spring may in some cases be substituted for it.
The bolt b, is preferably secured in position, by a lock nut, instead of by a single
nut taking upon its lower end.

page_text: Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare what I
claim is.
First Interposing between the metallic shaft connections, or attachments, of two
wheeled vehicles, and the shafts, or the undersides of the shafts of them, rubber
blocks, or cushioning fulcrums, for the purpose substantially as described and
set forth.
Secondly-Noiseless connections for the shafts, of two wheeled vehicles, consisting
of a fulcrum box or hollow casting a, a, a, a, and a shaft attachment plate d, d², d³,
with a rubber or yielding fulcrum block or spring 9, fitted within them, and
which said parts are constructed arranged and operate substantially as described
and set forth.
Thirdly-In noiseless joint connections for two wheeled vehicles, arranged,
combined and applied, substantially as described and set forth.
Fourthly: A noiseless joint connection, for rods, for communicating motion sub-
stantially as described and set forth in figures 13 and 14.
Dated this 11th day of January 1890.
THOMAS WATTS.
By Henry Skerrett,
Agent for Applicant.