Year: 1887

page_text: Date of Application, 20th Sept., 1887
Complete Left, 13th Dec., 1887
Complete Accepted, 13th Jan., 1888
I WILLIAM TUCKER WEBBER of Bishop Street South Birmingham in the county
of Warwick Lamp Manufacturor do hereby declare the nature of this invention to be
as follows:-
This invention relates to the manufacture of carriage and other lamps, and has for
its object the method or process of producing certain parts of such lamps by the
spinning process.
In certain designs or patterns of lamps the fronts are made of an oval shape, also
in some instances the backs (reflecter), the tops, and also the bottoms of such lamps
are made of an oval shape, but hitherto they have been made by hand, that is with
tools by what is understood as by the hand process.
Instead of this however, I produce such parts by the process of spinning, by means
of an oval chuck in a lathe.
I take a blank of metal, and spin it into or upon an oval chuck to the required form
and size; in some cases removing the centre, as in the case of the fronts and the
tops &c., of such lamps, while in other parts I may leave such centres in. In the
case of the fronts, I am also thus enabled to roll over the outer edges on to a stout
wire, and thus to dispense with the soldering process, of securing such wire, as in the
present method.
Further, this adaptation of the spinning process to the manufacture of such parts
enables me to roll over the edges of such oval fronts on to the wire and also to
burnish them, that have been as hitherto, made by the present method of forming
such fronts out of curved strips, and hard soldered together.
I
By thus applying the process of oval spinning to the manufacture of these parts,
am enabled to make them of a seamless piece, in a cheaper and more perfect manner
than heretofore, part of such process being as before intimated, applicable to the
unfinished fronts of present make.
1007
CHARLES T. POWELL.
Applicant's Agent.

page_text: Improvements in the Manufacture of Carriage and other Lamps.
I WILLIAM TUCKER WEBBER of Bishop Street South, Birmingham in the county of
Warwick Lamp Manufacturer, 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 manufacture of carriage and other lamps, and has for
its object the method or process of producing certain parts of such lamps by the
spinning process.
In certain designs or patterns of lamps, the fronts are made of an oval shape, also
in some instances the backs (reflector), the tops, and also the bottoms of such lamps,
are made of an oval shape, but hitherto they have been made by hand, that is with
tools by what is understood, as by the hand process.
Instead of this however, I produce such or similar parts by the process of spinning,
by means of an oval chuck in a lathe.
I take a blank of metal, and spin it into or upon an oval chuck, to the required form
and size; in some cases removing the centre, as in the case of the fronts and the
tops &c., of such lamps, while in other parts I may leave such centres in. In the
case of the fronts, I am also thus enabled to roll over the outer edges on to a stout
wire, and thus to dispense with the soldering process, of securing such wire, as in the
present method.
Further, this adoption of the spinning process to the manufacture of such parts
enables me to roll over the edges of such oval fronts on to the wire, and also to
burnish them, that have been as hitherto, made by the present method of forming
such fronts out of curved strips, and hard soldered together.
By thus applying the process of oval spinning to the manufacture of these parts, I
am enabled to make them of a seamless piece, in a cheaper and more perfect manner
than heretofore, part of such process being as before intimated, applicable to the
unfinished fronts of present inake.
I will now proceed to more particularly describe these my improvements and their
application to the manufacture of the various parts of lamps, having reference to the
accompanying illustrated sheets of drawings, upon which are figures and letters
of reference.
Figs. 1 to 10 inclusive, illustrate my improved, method, either wholly or in part, of
manufacturing such parts of lamps, that are known as the outside or inside bells, that
is, such parts as are adjacent to the illuminating window of the lamp. I will first
deal with the manufacture of an outside bell.
I employ what is generally known as an oval turning lathe headstock, provided
with an ordinary oval chuck arrangement, or similar thereto, and such other parts
necessary for driving and manipulating such lathe. I also use such tools for spinning,
turning over, and otherwise operating upon the metal, as are ordinarily in use for
similar purposes in other manufactures, or such special tools as may from time to
time be considered preferable by the operator.
I then take a blank of metal Fig. 1, which has been previously electro plated or
otherwise coated, and place it upon an oval chuck; and spin or turn down the edge
at a, as in Fig. 2, and also cut out the centre b, during the same operation. I then
further provide a suitably shaped chuck as at c Fig. 3, and having placed the partly
formed piece Fig. 2, thereon, I spin the metal into the shape shown at d (Fig. 3), and

page_text: also finish such surface with a burnishing tool. Thus far I produce it by what I term
the spinning inwards, but I may in some instances take the blank Fig. 1 and place it
upon a chuck e Fig. 4, and spin or "bring down" the metal externally upon the said
chuck as shewn. Having thus formed it, I cut away the front part, as seen in
Fig. 5, then place it in a similar chuck to that of Fig. 3, and turn or spin over the
edge for the wiring &c. as seen in Fig. 6.
The alternative methods have now reached a similar shape, when I may insert the
wire 9, and proceed to spin or turn over the metal on to the wire as seen in Fig. 7, or
in some cases spin or turn over the metal without the wire as seen in Fig. 8. At the
stage of Fig. 7 or 8 the said metal forming the bead over the wire or otherwise, would
also be burnished. It has been customary to solder the wire in its place but by this
method of manufacture I am enabled to firmly cover it without soldering, and present
a neater appearance.
Fig. 10 illustrates an inside oval bell, which may be made in the same manner
described for the outside bell, but requires no wiring, it having however a bead or
turn over, spun at its edge h, and which would be burnished as therefor described,
while upon the oval chuck.
At present both the outside and inside bells, are made from a cut piece of metal
similar to that seen in Fig. 9, when its two ends are hard soldered together, then
forming a piece similar to Fig. 5. At this stage of its manufacture however, I may
proceed to finish it by my improved method of oval spinning and burnishing, as
described for Figs. 3, 6, 7, & 10.
I will next describe my improved method of applying the oval spinning process,
to the manufacture of the various other parts of the lamps, in which some such parts
have their central portions removed, similar to the bells already described, whilst
others retain the said central part. Thus, Figs. 11, 12 & 13, illustrate the method of
producing those articles which retain their central portion. I find in producing these
articles, that if their central portion is burnished upon the oval chuck, after they have
been shaped, such burnishing produces an objectionable mark or line lengthwise of
the oval, by reason of the eccentric motion of the chuck. To obviate this I proceed
as follows-1 take the blank i, prepared &c. similar as Fig. 1, and first place it upon
an ordinary round chuck as seen in Fig. 12, and while upon such chuck I burnish its
central part, so that should any mark at all be perceptable, such mark would be of a
concentric or circular form, but the burnishing when done skilfully would not present
marks readily perceptable. I new place the piece as seen in Fig. 12, into an oval
chuck Fig. 13, and proceed with the spinning and burnishing, similarly as before
described, drawing or turning down the metal into or onto the sectional shape of the
chuck, the piece Fig. 13, being arranged for the back or door of a lamp.
Fig. 14, also illustrates a piece for the backs or doors for these lamps. In this case
however I do not need the process as shewn in, and described for Fig. 12, inasmuch
as the centre k, is cut away, so that I take the blank of necessary size and shape, and
place it direct upon an oval chuck, of a similar sectional shape to that of the desired
back or door, and then spin it and burnish, at the same operation, removing therefrom
the said central portion k.
Fig. 15, illustrates a "top." Fig. 16, a "bottom" without nozzle, and Fig. 17
a bottom with nozzle, each of which I make in the same manner as described
for Fig. 14.
Fig. 18, represents a loose nozzle which may be spun from a flat blank into or onto
an oval chuck, and burnished, or, it may be soldered together into a plain tubular
form, and then further spun and burnished into its finished sectional forin. In other
cases this loose nozzle may be made in two parts -m as shewn in Fig. 19; being
made first into a tubular form, and further spun and burnished, and shaped at its
front end to receive the cap m; the said cap m being made in a similar manner to
that of Figs. 15, 16 or 17, and then soldered together at n, n', forming the complete
nozzle similar to Fig. 18.
T
Fig. 20, shews a "back light bell," which would be also made similar to
12

page_text: Figs. 21 & 22, illustrates a "reflector" and "top cap," also again made similar to
Fig. 16 &c.
Fig. 23, illustrates the making of the "ball" of these lamps, the piece o being
spun and burnished by the method similar to that described for Figs. 11, 12 & 13, it
retaining its central part, while the piece p, would be spun and burnished similar to
say Fig. 22, its portion q, being cut away.
These two parts would then be closed or secured together, by the ordinary closing
or rolling over of the joint r, while in an oval chuck, similar as seen in Fig. 24.
Fig. 25, illustrates the application of this my invention, to the manufacture of the
handles of such lamps, the piece s being first cut out in a flat blank form, soldered
together into the tubular form, then placed onto an oval chuck or mandril, when the
end would be turned down &c. to receive the cap t, and also burnished at the same
operation. I now take a blank of metal, and spin and burnish it as seen at t, to form
the cap, then insert it in the end of the handle, and solder it at the joint u, as seen
in Fig. 26.
In some designs it is desirablo to form beads or ribs upon the handle as shewn in
dotted lines. In such cases I should insert the said handle into an oval chuck in order
to produce such beads or ribs.
am aware that the spinning and burnishing of circular parts of lamps, has been,
and is now in use, and therefore I do not claim the method of spinning and burnishing
by machinery for the manufacture of lamps broadly, but as yet the oval parts of
lamps have not been made by the method described, but have been made by the hand
process, which is expensive and not so neat and uniform as that produced by my
improved method, whilst it is also much less expensive.
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
1st. The method of making the oval parts of lamps, by spinning and burnishing
such parts upon oval chucks, in a lathe or other suitable machine, substantially as
hereindescribed and set forth in Figs. 1, 2, 3, 6, 7, 8, 10, 13 to 24 inclusive, and also
part of 25.
2nd. The finishing or part shaping and burnishing of certain oval parts of lamps,
as hereindescribed and illustrated in Figs. 5, 6, 7, 8, 9, & 10, and part of Figs. 25
& 26, by means of an oval chuck in a lathe or other suitable machine.
3rd. In the manufacture of such oval parts of lamps, which retain their central
portion, the method described of burnishing their said central part in a round
chuck in combination with finishing or completing their further oval spinning and
burnishing upon oval chucks, substantially as herein setforth and illustrated in
Figs. 11, 12, 13 & 23.
4th. The turning over of the metal of the parts Figs. 3, 5 & 9, by the spinning and
burnishing method described to form a bead with or without wire, as set forth and
illustrated in Figs. 7 & 8.
Dated this 9th day of December 1887.