Improvements in Apparatus or Machinery to be used in connection with the Uniting Together of Tubular Parts to form Framings or other Constructions for various purposes.
Year: 1898

page_text: Date of Application, 5th Apr., 1898-Accepted, 11th June, 1898
Improvements in Apparatus or Machinery to be used in connection
with the Uniting Together of Tubular Parts to form Framings or
other Constructions for various purposes.
I, CHARLES HARVEY, of The Swifts, South Yardley, near the City of Birmingham,
Manager of Works, 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 the machinery employed in uniting together the tele-
scoping parts of the tubular members and junction lugs of cycle and analogous
framings, also for connecting tubular lengths to one another or to fittings or parts
telescoped by them for various purposes, particularly by that process or method in
which annular or part annular inward bulgings, indentations or creasings are
made around the tubular parts to be united, by the means of impressing or creasing
spinning tools carried in the jaws of adjustable tool-holders or levers which are
operated by mechanical means and caused to rock to and fro or make partial
rotatings about, and gradually close (as the creasing proceeds) upon, the said
tubular parts, which come between and are gripped by the tool holding jaws.
The said invention has more particular reference to the work tables of such
machines, whereto the cycle or like framings or other tubular construction are
bolted or secured during the time that parts of them are being operated upon or
creased, to form the junctions or joints thereof, by the tools, and has for its object,
to so construct and mount the said table relative to the fixed bed or framing of the
machine that the work carried by it is self-centred may be readily brought central
with the jaws or grips carrying the impressing tools, without having to adjust or
vary the position of the tools or to accurately set the work in any particular
position upon the table, which has to be effected in machines where either the tools,
the table or the work (or sometimes the whole of them) have to be relatively
adjusted in order to bring the work central between the jaws of the gripping tools;
and this object I propose to accomplish by connecting the foundation of the said
tube to the stationary bed of the machine by rocking arms or parallel-motion links
in such a manner that it is capable of a rising and falling movement, the said
foundation being balanced or preserved at the required level by systems of weights
and springs acting in opposition to the weight of the table so that the tendency.
of the table to depress the links and to fall by its own weight is neutralized by
the balance weights and springs acting in the contrary or opposite direction and
tending to uphold it; and by mounting the top of the table (to which the work is
secured) upon the said balanced foundation by yielding or universal rocking joints
or centres which admit of the said top moving (when required) in a horizontal
plane independent of the said foundation, whereby the said table and the worked
secured thereto, may be moved in any direction and to any extent (within certain
limits) relative to the bed of the machine and the tools mounted thereon.
Figure 1 of the accompanying drawings represents an elevation of a portion of
a machine for making mechanical or brazeless joints (of the kind hereinbefore

page_text: referred to) between telescoping tubular parts of cycle and like framings, fitted or
provided with a universally mounted and balanced work table constructed and
mounted according to my invention.
Figure 2 is a topside plan of Figure 1. "
Figure 3 is an elevation, upon an enlarged scale, of a portion of the said machine,
showing the construction and arrangement of one form of tool carriers which Í
propose to employ in conjunction with my improved table.
Figure 4 is a horizontal section of Figure 3, upon the dotted line.
Figure 5 is an elevation, upon a somewhat larger scale than Figures 1 and 2,
showing the opposite side of the table to that represented in Figure 1.
Figure 6 is a horizontal, section. of Figure 5, upon the dotted line ¹, representing
the foundation of the table in plan and showing the disposing of the rocking or
yielding connections of the table top.thereto..
Figure 7 is a longitudinal vertical section of the said table and the contiguous
parts of the fixed bed of the machine.
Figure 8 is an elevation of Figure 5, looking at the same from the left hand.
Figures 9 and 10 represent in section and in, two different positions, one of the
rocking connections by which the top of the table is mounted upon, the foundation
or base and which is provided with a suspended weight for automatically, returning
the said top to its normal position when released after being moved in a horizontal
plane in adjusting or centreing the work bolted thereon in the tools.
Figure 11 is a separate elevation of the rocking arm of the said connection.. -
And Figure 12 represents an elevation and a plan of the casing wherein, the foot
of the said arm works.
2. 0.... A
Figure 13 is an elevation of one of the laterally-yielding and anti-friction joints,
a series of which are provided between the table proper and its foundation, in
addition to the rocking joints shown in Figures 9 and 10.
1
Figure 14 represents topside and underside plans, full elevation and an elevation,
partly in section, of the peg connection, the base or foot of which is enlarged and
recessed on the bottom or lower end to take over the anti-friction balls.
Figure 15 represents an elevation, cross section and plan of the casing or con-
fining ring in which the foot of the said peg works.
The same letters of reference indicate corresponding parts in the several figures
of the drawings.
a is the general framing of the machine, carrying a bearing b, within which
is mounted a tool carrying sleeve b¹, having a gap b³, for the tubes of a frame to
drop into and an annular toothed rack 2, cut around its periphery and engaging
with a racked bar 4, which is caused to make a traversing movement and so
communicate a rocking or part rotating motion to the said sleeve and to the tool
carrying arms c, c', which are mounted upon a casting 63, bolted to one end of the
said sleeve. The one tool c, is stationary, being either rigidly connected or formed
an integral part of the casting 63, whilst the other c¹, is jointed and is adjusted,
so as to take its semi-circular jaw, closed up to the jaw c3, of the other arm by
means of a screw c, thus providing a means for causing the impressing tools which
are mounted in the said jaws, to follow up or deepen the impressions made by them
in forming the junctions. By thus mounting the tools upon the rocking carrier,
the axis about which the semi-circular gripping jaws rotate is fixed or remains
in a constant position relative to the stationary bed of the machine. The work
table consists of two parts, viz., a top or table proper d, which is slotted to receive
the bolts by which cycle or other framings to be jointed up are bolted, and a base
or foundation e, which is carried upon a casting e¹, connected or jointed by means
of pairs of parallel motion links e, to another casting a², bolted onto the end a',
of the frame or bed a, of the machine, so that the said foundation may make a
rising or falling movement, when required, in a vertical plane. In order to
balance the said foundation at the required level and to prevent it falling by its
own weight onto the bed a, I arrange in conjunction with the links a shaft e³, to
which the upper pair of links are keyed, so that the said links and shaft move

page_text: f.
together; and made fast to one end of the said shaft is an armes, upon which a
sliding or adjustable weight or counterpoise et, is mounted, the action of which is
to rock the links in an upward direction and so elevate, the table, whilst in order,
to further neutralize, or nearly so, this falling tendency of the table I also arrange.
a spring (or springs) f, fixed at one end to the framing and at the other end to
an extension e, of the casting el, so that a lifting pull is exerted thereby, which
acts in conjunction with the weighted lever to sustain or balance the table. The
tension of this spring may be adjusted by means of the nut es, screwing onto the
end of its connecting pin e
The table top is universally jointed to, or is capable of making an independent
movement in one direction relative to, the balanced foundation, this being effected
by the employment of a series of supports or pegs g, which are capable of a lateral
movement upon anti-friction or roller bearings g', interposed between the top of
the foundation and the recessed underside of their enlarged feet,g², which are
confined within casings or chambers g³, secured to the said foundation plate, and
in conjunction with these anti-friction connectings, I also employ a series of two
or more rocking joints each comprising a peg or arm h, with the upper end taking
and swivelling in a bearing hole in the table top whilst the lower end or extended
foot h, has normally a flat bearing upon the top of the foundation plate and is
confined within a bolted-on ring or casing h³, whilst depending from the said foot,
and extending through a hole in the foundation is an eyed peg h³, from which is
suspended a weight h³, the operation of which is to return the joint arm h, to its
vertical position and drag the table back automatically to its normal position as
hereinafter described.
OPERATION.
Assuming that the joints between the several tubular members and junction
lugs of a cycle framing require to be made and that the level of the top of the
balanced table has been adjusted if required by altering the position of the balance
weight upon the weighted level and also increasing or decreasing the tension of
the spring, and the jaws of the tools are opened out; then the framing, the parts
of which have been temporarily connected together, is placed upon, and bolted to,
the table top, with the one member which is to be first joined to its lug lying along
the gap 65, in the rotating or rocking carrier sleeve. The jaws of the tools are
then brought together by the screw, and should the tube not lie properly central
with the axis of the tool grips, the act of closing together the said tools self-centres
the said tube, and the balanced table is sensitive to and immediately follows up
any movement made on the part of the tube in being so centred, such following
up being admitted by the top moving upon its universal mountings as described.
The machine is then set in operation and the necessary joint formed, after which
the framing is unbolted and removed from the table, whose top is caused to
immediately resume its normal position relative to the balanced base by the pull
of the weights h³, dragging the rocking arms h, again into an erect position.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
First In machinery for uniting together tubular metallic parts, the employ-
ment of a universally mounted and balanced work table, to which the work to be
operated upon by the tools is secured, whereby the said work is made to self-find
or centre itself relative to the tools employed for forming the joints.
Secondly-In machinery for uniting together tubular metallic parts, the com-
bination with the operating tools, which are so mounted that the position of the
axis of their jaws or grips is always constant relative to the stationary framing of
the machine, of a universally mounted and balanced sensitive work table, as
referred to in the preceding claim, to which the work is secured, substantially as,
and for the purpose described and set forth.

page_text: Thirdly: A universally mounted work table to be employed in connection
with machinery for uniting together tubular metallic parts, comprising a founda-
tion plate or base, connected to the fixed bed of the machine, by a series of parallel
motion links and balanced or upheld by a system of weights or springs or both,
acting against the weight of the said table, and a top or table proper, to which the
work is secured, connected to the said foundation by universal mountings or joints,
substantially as and for the purpose described and set forth.
Dated th A1
P A
$11000
CHARLES HARVEY,
By Henry Skerrett,
24, Temple Row, Birmingham, Agent for Applicant.