Year: 1887

page_text: Date of Application, 12th Apr., 1887.
Specification Accepted, 13th May, 1887.
I, PERCY HADDAN of the firm of Herbert & Co., Patent Agents, of 67 Strand,
London, in the County of Middlesex, Civil 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 relates to an improvement in tips or outlets for gas burners, and in
the method of constructing the tips.
The object of the invention is to produce all that is desirable in both lava and metal
tips as heretofore constructed with none of the objectionable features, by producing a
tip which may be easily adjusted in an ordinary pillar or receptacle, will be cheap,
and one which will emit an even and symmetrical flame, either singly or intersecting
so as to produce brilliant flames of steady light, and further to provide means for
deflecting the flames so that a comparatively small quantity of gas will give a large
and brilliant flame, and also the method for constructing the tips to effectively
accomplish these objects.
With these ends in view the invention consists in certain mechanical combinations
of parts which will be hereinafter fully described and set forth.
In the accompanying drawings:
Fig. 1 represents the improved tip complete.
Fig. 2 represents a horizontal section, through line a-a of Fig. 1.
Fig. 3 is a vertical central section taken transversely through the slot.
Fig. 4 is a detached view of the binding shell.
Fig. 5 is a view of the locking plate.
Fig. 6 is a horizontal section of the same through line -b of Fig. 5.
Fig. 7 is a half shell in readiness to be bound with its mate.
Fig. 8 illustrates a tip designed to emit intersecting flames.
Fig. 9 is a horizontal section on line c-c of Fig. 8.
Figs. 10 and 11 show the construction of the intersecting lock plates.

page_text: slot being struck, one half in each.
Fig. 13 is a modification with the parts detached, and in their relative position.
Fig. 14 the same fastened together.
Fig. 15 is a plan view of the dome shaped apex.
Figs. 16 and 17 and 18 illustrate different forms of slots, the same being compound
or semi-cross-cut.
Fig. 19 shows a tip with the intermediate shell removed, and having a flat or
truncated apex.
Fig. 20 shows different form of slots, and-
Fig. 21 is a vertical section of the slotted tip after its top is depressed.
A A¹ represent a pair of similar half tips struck from the stock in a concavo-convex
and tapering form and when these are placed with their concave surfaces opposed,
they form a hollow chamber. Between these half tips A A¹ a locking plate B is
inserted. This locking plate B is struck from similar stock as the half tips, tapering
slightly at the lower end and has countersunk edges 6' so that when placed between
the half tips, the edges of the latter articulate along the countersink, and thus forming
a complete circle in horizontal section, the top of the locking plate forming the limit
of the gas slot or outlet c¹ and the thickness of the locking plate determining the width
of the same.
The half shells and locking plate are fastened together in the position described by
means of a binding shell D, the latter being simply a hollow tapering cylindrical
drawn out of thin metal. The locking plate and half shells have a slight reinforce d¹
which covers the upper edge of the binding shell and also forms a joint against the
same after the half shells and locking plate are driven or swedged together as shown
in Fig. 1. The object of the tapering lower end of the tips is to admit of their being
adjusted gas tight into any ordinary pillar or receptacle.
After the parts are all united the whole is plunged into a suitable cement or
corrosive fluid thence thrown in large numbers into a shaking or revolving rattler,
thus finishing them for market, the object of the cement or corrosive fluid being to
seal all joints air tight and firmly bind all parts in permanent union.
Fig. 8 shows a tip constructed with a double quadrangular leafed locking plate
shown in section in Fig. 9. The locking plate consists of two flat plates locked
together by means of slots alternately located in the top and bottom as shown in
Figs. 10 and 11 forming four lateral wings.
To conform to the particular construction of this quadrangular plate, the tip shell is
formed in quarters instead of halves and the whole is swedged and enclosed by the
binding shell as in the former tip, but in this case creating an intersecting or four way
gas outlet or slot.
Fig. 12 represents a modified form of tip formed of the two pieces therein shown in
combination with the part D Fig. 4. In this tip there is no locking plate, and the
slot or outlet c¹ is formed by one half being cut from one half shell and the other half
from its mate, the parts being bound together as previously described.
In the modification shown in Fig. 13, the tip consists of three pieces of sheet metal
lettered 1, m and n respectively. The letter represents the dome shaped apex
provided with slots in the top and enlarged at the bottom where it terminates in an
outwardly projecting annular flange 12. The letter m represents an intermediate shell
consisting of a raised projection, flat across the top with inclined sides terminating also
in an outwardly extending flange m', the flat top being provided with a perforation m²
of any suitable size, which permits a fixed quantity of gas to pass under a uniform
pressure and thus insure a relative standard of emerging pressure through the slot in
the piece l.
The letter n represents the third part and is an inverted truncated, hollow cone,
having a flat off-set around its larger end and an upwardly extending flange n'. The
tapering portion forms an accommodating joint for engagement with the inside of an
ordinary pillar. The parts are assembled as follows: Shell m is placed inside apex l,
the flanges together and both are placed upon the inside surface of the flat off-set of

page_text: the cone n.
The parts thus assembled are placed in a close swedge, and the flange n¹
is closed over the flanges m¹ and 12, thus locking all the parts securely together.
Figs. 16, 17 and 18 illustrate semi-intersecting slots, or outlets formed in the dome
or apex 1, and are formed preferably as in the case of a simple slot, leaving a solid
centre at the extreme top of the dome.
Figs. 19, 20 and 21 show constructions differing slightly from those already
described. In this construction no intermediate shell is employed, and the shell
used is preferably convex or flattened on the top, in the first process of stamping,
casting, or turning.
The tip is then placed in a tie suited for the purpose, and various forms of slots
are stamped or cut therein, as shown in Figs. 16, 17, 18 and 20. After these
slots are formed the crown of the tip is countersunk, or depressed as shown in
Fig. 21, thus changing the plane of the slots, so that the gas upon issuing from
them, is deflected or intersected upon itself, forming flames of the desired form
and shape.
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 :—
1. A sectional tip or outlet, cut, struck, or pressed from sheet iron or steel,
substantially as set forth.
2. A tip or outlet, cut, struck, or pressed from sheet metal, having slots cut, by a die
or cutter across the apex or dome dividing the same into polygonal spaces, said slot
not intersecting but separated by a solid centre at the apex of the dome, for the
purpose of producing intersecting uniform flames, substantially as and for the purpose
set forth.
3. In a gas burner the combination with a chambered head provided with a flame
slot, of a perforated diaphragm or cup section located within the chambered head, the
upper portion of the diaphragm being flattened and situated in practically the same
plane as the lower ends of the flame slot thereby forming a substantially hemi-
spherical gas chamber within the upper end of the chambered head, substantially as
set forth.
4. A gas tip or outlet made of two or more sections, the sections or parts struck, cut
or pressed out of sheet metal, and secured together, substantially as specified.
5. A gas tip or outlet, made of sections, the sections or parts cut, struck or pressed
out of sheet metal, having the passage for the egress of gas, cut, struck or pressed out
of the said metal, substantially as and for the purpose specified.
6. A gas tip or outlet consisting of two or more longitudinal sections, cut, struck
or pressed out of sheet metal, and a binding shell embracing said section and locking
them together, substantially as set forth.
7. A gas tip consisting of a body having intersecting slots for the exit of gas
composed of two or more sections, and an annular locking plate located within said
body, and a binding shell embracing said body, and locking the parts together,
substantially as set forth.
8. The herein described method of cutting or punching perforations through the
flat or externally convex surface of the tip, of the closed pillar or tip, and subsequently
depressing or countersinking said surface, for the purpose of changing the direction
or plane of such perforation, substantially as set forth.
Dated this 19th day of April 1887
P. HADDAN.
By Herbert & Co.,
67, Strand, W.C.,
Agents to Applicant.