CERTAIN IMPROVEMENTS IN THE CONSTRUCTION OF CARRIAGES USED ON RAILROADS
Year: 1841

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDMUND
TAYLER, of King William Street, in the City of London, Gentleman, send
greeting.
WHEREAS Her most Excellent Majesty Victoria, by Her Royal Letters
Patent under the Great Seal of England, bearing-date at Westminster, the
Eleventh day of May, One thousand eight hundred and forty-one, and in
the fourth of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Edmund Tayler, my executors, administrators,
and assigns, Her especial licence, that I, the said Edmund Tayler, my execu
tors; 'administrators, and assigns, and such others as we or they should agree
with (and no others), from time to time and at all times during the term of
years therein expressed, should and lawfully might make, use, exercise, and
vend; within that part of Her Majesty's United Kingdom of Great Britain
and Ireland called-England, Her Dominion of Wales, and Town of Berwick-
upon-Tweed, an Invention of "CERTAIN IMPROVEMENTS IN THE CONSTRUCTION
OF CARRIAGES USED ON RAILROADS; "in which said Letters Patent there is
contained a proviso that I, the said Edmund Tayler, should within six calendar
months from the date of the said Letters Patent-cause a further description
of the nature of the said 'Invention, and the manner in which the same was
to be performed, by an instrument in writing under my hand and seal, to be
inrolled in Her Majesty's High Court of Chancery, (as in and by the same,
reference being thereunto had, will more fully and at large appear).

page_text: NOW KNOW YE, that in' compliance with the said proviso, I, the said
Edmund Tayler, do hereby declare that the nature of the said Invention, and
the manner in which the same is to be performed, are described and ascer-
tained in manner herein-after set forth, and as represented in the Sheet of
Drawings hereunto annexed, which are drawn to the scale of one inch and a
half to a foot, (with the exception of Fig. 1, which is drawn to the scale of of
an inch to a foot), and in which the same letters indicate the same parts :-
Fig. 1 is a side view of a portion of an inclosed railway carriage, with the
panels a, a, a, formed of sheets of papier maché, (I prefer that made and
prepared with oil by Mr. William Brindley, of North Wood Street, Birming-
ham,) which are attached to the carriage framing in the same manner as the
wood panels at present in use, and painted and varnished the same as wood.
The papier maché panels should be about half the substance of the wooden
The roof is also covered with sheets of similar papier maché b, b, about
one-eighth of an inch in thickness, laid across the roof, and the joints covered
with a batten or strip of wood c, c, to keep out the wet.
ones.
My improvements in carriages also comprize a compound axle, and various
improvements in wheels, which, from their several methods of construction,
are less liable to break than wheels as now constructed, either by changes in
temperature or other causes.
Fig. 2 is a longitudinal section through an improved compound axle, having
bearings or journals outside the wheels, upon which the carriage is supported;
and Fig. 3 is a modification of the same, the bearings being placed inside the
wheels; d, d, d, is a turned wrought-iron axle (with a journal or bearing h¹, h³,
at either end), upon one end of which a wheel e, e, (previously bored true) is
driven tight against the shoulder, and secured in the usual manner by a steel
key which fits into the groove f; the other wheel el, el, is driven firmly on
one end of a wrought-iron tube 9, 9, (half an inch in thickness,) and held in
its place by caulking or upsetting the extreme end of the tube into a recess in
the nave.
The axle d, d, with the wheel e, e, attached, is passed through the
tube until the end of the tube and the shoulder of the axle are in contact,
and then secured by a wrought-iron collar i, i, and the split pins j, j, as fully
shown in Fig. 4, which is a section through y, z, in Fig. 2 and Fig. 3. When
bearings inside the wheels are required, the tube must have two collars k, k,
welded on to form the journal h. The journal h³ is turned in the axle d; a
wrought-iron collar is welded on the end of the tube to prevent the same
from bursting. The middle of the axle is turned one-eighth of an inch less
diameter than the inside of the tube, in order that the tube may only bear at
the two ends.

page_text: Fig. 5 is a face or side view, and Fig. 6 is a transverse section (through the
dotted line in Fig. 5) of an improved railway carriage wheel, and Fig. 7 is a
portion of a wrought-iron nave and axle for the same. The axle is forged
with a swell m, into which six holes n, n, n, (the number of the spokes) are
accurately drilled at right angles to the axle; o, o, o, are wrought-iron spokes,
which are turned at one end so as to fit into these holes and to leave a small
shoulder; the other ends are also turned and screwed, and an oblong hole or
slit cut through the threaded part. p, p, p, are hexagon nuts, with holes
drilled through each of the six sides; v, v, v, are washers, curved on one side
and flat on the other, to give the nuts a true bearing; r, r, r, is a wrought-
iron ring or hoop in three parts; s, 8, s. are six segments of dry seasoned oak
or other suitable wood, turned true both on.the inner and outer circumference;
t is an ordinary wrought-iron hoop or flanged tire, turned true on the inside.
To put this wheel and axle together, first drive the spokes o, o, o, quite tight
into the holes n, n, n, until the small shoulders bear true on the nave m;
screw on the nuts as far as they will go, and put the washers above them (with
the curved side outwards), and then place the three portions r, r, r, of the
inner ring or hoop with the divisions over alternate washers; around this hoop
place the six wooden segments, which are held together by wrought-iron
dowels u, u, u, about four inches long, and three-quarters of an inch in
diameter. Upon the wheel thus formed place the tire t (cold), and tighten
all up by means of the nuts p, p, p, which are held fast by split keys
or pins which pass through the nuts and oblong holes in the spokes.
The outside tire t is now to be turned; which completes the wheel; w, w,
are bolts with countersunk heads for preventing the tire from becoming
displaced. Segments of papier machè (one half the depth) may be substituted
for the wooden segments.
Fig. 8 is a face view, and Fig. 9 is a transverse section (through the dotted
line in Fig. 8) of another improved wheel, and Fig. 10 is a section of a
wrought-iron nave; the construction of this wheel is almost similar to that
described in Fig. 5, Fig. 6, and Fig. 7, the difference consisting in the
have A, which is cast upon the ends of the spokes in the manner usually
practised by ironfounders, and in the method of constructing the felloes,
which consists of three concentric hoops of ash or other suitable wood, bent
by steam or any other convenient means. The ends of the spokes, instead
of being turned, must be split open to prevent them. from drawing out of
A wrought-iron nave (Fig. 10) may be substituted for the above,
which is drilled as directed for the wheel described in Fig. 5.
the nave.
Fig. 11 is a face view; and Fig. 12 is a section (through the dotted line, in

page_text: Fig. 11) of another railway carriage wheel. a*, a*, ax, are seven spokes formed
of bars of wrought iron (about three inches broad by half, an inch thick),
bended upon a shape or block of cast iron. Each bar has two bends d*, d*,
and the portions ex, e*, curved outwards towards the, spoke next to it.
Upon the inner ends of these spokes the nave A is cast. Around the con-
tinuous rim; formed, by the middle portions, of the bars of iron six segments
of wood 6x, bx, bx, are placed, with small spaces X, X, X, between them, and
fastened with iron dowels at each joint, as previously directed. Over these fix
a. band of thin sheet iron c*. Around the wheel thus formed shrink on the
tire t, by first heating it and then placing both wheel and tire in water, which
will prevent the wood from being injured. Papier maché (about two inches
deep) may be substituted for the wood in this wheel, the spokes being enlarged
in proportion to the thinness of the felloe. The contraction of the tire in
cooling will bring the segments of wood closer together, and will also bend the
curved portions of the bars forming the spokes still more, and thereby increase
the contact between them and add to their strength. The segments of wood
may be baked and compressed about twenty per cent., and the tire applied
cold. By placing the whole in water, the compressed wood will swell to its
original dimensions, and the tire be held tight, in its place by the elasticity
of the wood; the band of sheet iron is then unnecessary. A cast-iron or
any other centre for the support of the felloes may be substituted for that
described.
-
Fig. 13 is a face view, and Fig. 14 is a section (through the dotted line in
Fig. 13) of another railway carriage wheel, and Fig. 15 is a transverse section
through one of the spokes. f, fx, f*; are seven spokes of wrought iron,
also formed on shapes or blocks which have two bends g*, g*, and portions
h*, h*, curved outwards towards the next spoke. The middle. portions i*,*,
between the bends, are of such a length as to leave spaces of three i inches
between the bends of each spoke. A space of about one inch is also left between
the bars of iron at their insertion in the nave (which is cast upon them after
they are properly adjusted). Into these spaces, formed by the spokes not being
in contact, wedges of wood' k*, k*, kx, (oak is preferred) are driven tight, (the
points just entering into, but not touching, the bottom of suitable recesses cast
in the nave between the spokes); after which any portions projecting, are cut
off to the sweep of the portions of a circle formed by the middle portions of
the iron bars. On the large ends.or: heads of the wedges, projecting plates of
sheet iron l*, one-eighth of an inch thick, are fastened, which project beyond
the complete circle formed by the. iron spokes and wooden wedges. The tire
is put on hot, and in cooling first contracts upon the protecting plates, and

page_text: forces the wedges still further, until the protecting plates form a circle with
the ends of the spokes. The contraction of the tire. will also increase the cur-
vature of the spokes, and thereby still further tighten the wedges. Additional
security is afforded against the wedges falling out, by bending the two ends. (gra-
dually from the bends) of each bar of iron lengthwise, as shewn in Fig..15,
which may be done either before the bars are bended on the cast-iron block, "or
by giving the necessary form to the block. Wedges of papier maché: may, be
substituted for those of wood. The wedges. of wood may be compressed,' if
deemed necessary.
Fig. 16 is a face view of another wheel, which is a modification of that
described in Fig. 13. Rivets n*, n*, n*, with washers, are added to keep
their wedges in their places..
Fig. 17 is a face of part of a wheel having eight spokes. Each spoke
consists of a bar of wrought iron, having two bends, which. bends.. are in
contact' next the fire. The portions forming the spokes are curved outwards
towards each other.
:
Fig. 18 is a modification of Fig. 17, the spokes not being in contact.at the
bends, but at a part of the curved portions between the nave and fire, such a
space being left between the bends. (about half an inch) that the contraction
of the fire will not bring them quite together..
Fig. 19 is another modification of Fig. 17, the bends being 'welded together
with a small wedge of wrought iron m* between them.
Fig. 20 is a modification of Fig. 18. The spokes from the bends (which
are in contact but not next the tire) to the nave are curved towards each other.
I wish it to be understood that I claim as my Invention,―
Firstly; the use or application of papier maché in the construction of
carriages used on railroads.
Secondly, the mode described of constructing carriages used on railroads.
Thirdly, the mode described of covering the roofs of carriages used on
railroads.
Fourthly, the methods described of constructing axles for carriages used on
railroads.
Fifthly, the methods described of constructing wheels for carriages used on
railroads, with a subdivided inner ring for the support of wooden or papier
maché felloes.
Sixthly, the forming the naves and axles of the wheels of carriages used on
railroads of wrought iron in one piece.
Seventhly, the method described of forming the naves and axles of the
wheels of carriages used on railroads in one piece.
a

page_text: Eighthly, the method described of forming the naves of the wheels for
carriages used on railroads of wrought iron.
Ninthly, the use or application of bended hoops or rings of wood in the
construction of wheels for carriages used on railroads.
Tenthly, the use or application of papier maché in the construction of wheels
for carriages used on railroads.
Eleventhly, the use or application of compressed wood for forming the
felloes and spokes of wheels for carriages used on railroads.
Twelfthly, the method described of forming the felloes and spokes of wheels
for carriages used on railroads of compressed wood.
Thirteenthly, the use or application of wedges of wood or papier maché in
the construction of wheels for carriages used on railroads.
Fourteenthly, the methods described of constructing the wheels for carriages
used on railroads with felloes of wood or papier maché.
Fifteenthly, the curving towards each other bars of wrought iron, forming
compound spokes of wheels for carriages used on railroads.
Sixteenthly, the methods described of constructing the wheels for carriages
used on railroads with compound spokes which curve towards each other.
Seventeenthly, the method described of constructing the wheels of carriages
used on railroads with spokes formed of bars of wrought iron having two bends
in each bar, with small spaces between such bends.
I do not limit myself to the exact dimensions and proportions herein-before
set forth, as I have merely described what I deem best suited to carry out the
objects intended.
In witness whereof, I, the said Edmund Tayler, have hereunto set
my hand and seal, this Ninth day of November, in the year of our
Lord One thousand eight hundred and forty-one.
EDMUND (L.S.) TAILER.
AND BE IT REMEMBERED, that on the same Ninth day of November,
in the year above written, the aforesaid Edmund Tayler came before our
Lady the Queen in Her Chancery, and acknowledged the Specification afore-
said, and all and every thing therein contained, in form above written. And
also the Specification aforesaid was stamped according to the tenor of the
Statute in that case made and provided.
Inrolled the Tenth day of November, in the year above written.

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN CoоD
HADDAN, of No. 14, Lincoln's Inn Fields, in the County of Middlesex, Civil
Engineer, send greeting..
WHEREAS by Letters Patent under the Great Seal of the United King-
dom Great Britain and Ireland, bearing date at Westminster, the Eleventh
day of May, in the fourth year of the reign of Her present Majesty Queen
Victoria, Her said Majesty did grant unto Edmund Tayler, of King William
Street, in the City of London, Gentleman, his executors, administrators, and
assigns, the sole use, benefit, and advantage of his Invention of "CERTAIN
IMPROVEMENTS IN THE CONSTRUCTION OF CARRIAGES USED ON RAILROADS;" to
have, hold, exercise, and enjoy the same unto and by the said Edmund Tayler,
his executors, administrators, and assigns, within England, Wales, and the
Town of Berwick-upon-Tweed, for the term of fourteen years: And whereas
the said Edmund Tayler, in pursuance of a proviso in the said Letters Patent
contained, did, by an instrument in writing under his hand and seal (com-
monly called a Specification), describe and ascertain the nature of his said
Invention, and in what manner the same is to be performed, and did cause the
same instrument to be enrolled in Her Majesty's High Court of Chancery on
the Tenth day of November, in the year of our Lord One thousand eight hun-
dred and forty-one: And whereas, by Indenture bearing date the Ninth day of.
November, One thousand eight hundred and forty-one, and made or expressed
to be made between the said Edmund Tayler of the one part, and me, the
said John Coope Haddan, of the other part, for the considerations therein
expressed, the said Letters Patent, and the Invention, rights, privileges, profits,
and premises therein comprised, or thereby granted, were duly assigned. unto
me, the said John Coope Haddan, my executors, administrators, and assigns:
And whereas, since the date of the said Letters Patent, and of the said enrol-
ment of the said Specification, I, the said John Coope Haddan, have been
advised that the several parts of the said Invention comprised in the said
Letters Patent, and described in the said Specification, and herein-after dis-
claimed, or intended so to be, are not of great public utility; and in order to
prevent the validity of the said Letters Patent being endangered by reason
of such parts of the said Invention, I am desirous, with the leave of Her

page_text: Majesty's Attorney-General, to enter with the Clerk of the Patents of England
such Disclaimer and Memorandum of Alteration as herein-after contained or
expressed.
NOW KNOW YE, therefore, that I, the said John Coope Haddan, by
and with the leave of Sir John Jervis, Knight, Her Majesty's Attorney-
General, do hereby disclaim all such, and so much, and such parts of the said
Specification as describes certain parts of the said Invention in the words,
letters, and figures herein-after set forth or mentioned (that is to say):-
I do hereby disclaim the words, letters, and figures following "Fig. 1'is
"a side view of a portion of an enclosed railway carriage,. with the panels
a, a, a, formed of sheets of papier maché, (I prefer that made and prepared
"with oil by Mr. William Brindley, of North Wood Street, Birmingham;)
"which are attached to the carriage framing in the same manner as the
"wood panels at present in use, and painted and varnished, the same as wood.
The papier maché panels should be about half the substance of the wooden
The roof is also covered with sheets of similar papier maché b, b,
"about one-eighth of an inch in thickness, laid across the roof, and the joints
"covered with a batten or strip of wood c, c, to keep out the wet."
" ones.
And of the words," My improvements in carriages also comprise a compound
axle, and various improvements in wheels," contained in the said Specification,
I, the said John Coope Haddan, do hereby disclaim the word "" also," and the
words" a compound axle, and.".
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And I do further disclaim, the words, letters, and figures following (that is to
say) Fig. 2 is a longitudinal section through an improved compound axle,
having bearings or journals outside the wheels, upon which the carriage is
." supported; and Fig. 3 is a modification of the same, the bearings being
placed inside the wheels; d, d, d, is a turned wrought-iron axle (with a
journal or bearing h¹, h², at either end), upon one end of which a wheel e, e,
(previously bored-true), is driven tight against the shoulder, and secured in
"the usual manner by a steel key, which fits into the groove f. The other
"wheel e¹, e¹, is driven firmly on one end of a wrought-iron tube g, g, (half an
"inch in thickness), and held in its place by caulking or upsetting the extreme
"end of the tube into a recess in the nave. The axle d, d, with the wheel e, e,
"attached, is passed through the tube until the end of the tube and the
shoulder of the axle are in contact, and then secured by a wrought-iron
"collar i, i, and the split pins j, j, as fully shewn in Fig. 4, which is a section
"through y, z, in Fig. 2 and Fig. 3. When bearings inside the wheels are
required, the tube must have two collars k, k, welded on to form the jour-
"nal . The journal 2 is turned in the axle d. A wrought-iron collar l-is
6

page_text: "welded on the end of the tube, to prevent the same from bursting. The
middle of the axle is turned one-eighth of an inch less 'diameter than the
inside of the tube, in order that the tube may only bear at the two ends.
"
$6
66,
Fig. 5 is a face or side view, and Fig. 6 is a transverse section (through
"the dotted line in Figure 5) of an improved railway carriage wheel, and
"Figure 7 is a portion of a wrought-iron nave and axle for the same. The axle
"is forged with a swell-m, into which six holes n, n, n, (the number of the
spokes), are accurately drilled at right angles to the axle; 0, 0, 0, are wrought-
"iron spokes, which are turned at one end, so as to fit into these holes, and to
leave a small shoulder. 'The other ends are also turned and screwed, and an
oblong hole or slit cut through the threaded part. p, p, p, are hexagon nuts,
"with holes drilled through each of the six sides; 'v, v, v, are washers, curved
"on one side 'and flat on the other, to give the nuts a true bearing; r, r, r, is
"a.wrought-iron-ring or hoop in three parts; s, 8, 8, are six segments of dry
"seasoned oak, or other suitable wood, turned true both on the inner and
"outer circumference; t is an ordinary wrought-iron hoop or flanged tire,
"turned true on the inside. To put this wheel and axle together, first drive
"the spokes o, o, o, quite tight into the holes n, n, n, until the small shoulders
"bear true on the nave m;-screw on the nuts as far as they will go, and put the
"washers above them (with the curved side outwards), and then place the three
portions r,,, of the inner ring or hoop, with the divisions, over alternato
"washers; around this hoop place the six wooden segments, which are held
together by wrought-iron dowels u, u, u, about four inches long and three-
quarters of an inch in diameter. Upon the wheel thus formed place the
tiret (cold), and tighten all up by means of the nuts p, p, p, which are held
"fast by split keys or pins, which pass through the nuts and oblong holes in
"the spokes. The outside tire.t is now to be turned, which completes the
"wheel. w, w, are bolts with countersunk heads, for preventing the tire from
"becoming displaced. Segments of papier maché (one-half the depth) may
"be substituted for the wooden segments.
"
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"Figure 8 is a face view, and Figure 9 is a transverse section (through the
"dotted line in Figure 8) of another improved wheel, and Figure 10 is a
"section of a wrought-iron nave. The construction of this wheel is almost
similar to that described in Figure 5, Figure 6, and Figure 7, the difference
consisting in the nave A, which is cast upon the ends of the spokes in the
manner usually practised by ironfounders, and in the method of constructing
the felloes, which consists of three concentric hoops of ash or other suitable
"wood, bent by steam or any other convenient means. The ends of the
spokes, instead of being turned, must be split open, to prevent them from
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page_text: "
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drawing out of the nave. A wrought-iron nave (Figure 10) may be sub-
stituted for the above, which is drilled as directed for the wheel described in
Figure 5."
And I do also disclaim the words following (that is to say): Papier
"maché (about two inches deep) may be substituted for the wood in this
"wheel, the spokes being enlarged in proportion to the thinness of the felloe.
"The contraction of the tire in cooling will bring the segments of wood closer
together, and will also bend the curved portions of the bars forming the
spokes still more, and thereby increase the contact between them and add to
"their strength. The segments of wood may be baked and compressed about
"twenty per cent., and the tire applied cold. By placing the whole in water,
the compressed wood will swell to its original dimensions, and the tire be
"held tight in its place by the elasticity of the wood. The band of sheet
"iron is then unnecessary. A cast-iron or any other centre for the support
"of the felloes may be substituted for that described."
"
.
And I do also disclaim these words,-"Wedges of papier maché: may be
"substituted for those of wood."
And I do further disclaim the words, letters, and figures following (that is
to say "Figure 17 is the face of a part of a wheel having eight spokes.
"Each spoke consists of.a. bar of wrought iron having two bends, which bends
"are in contact next the tire. The portions forming the spokes are curved
"outwards towards each other."
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And I do also disclaim the words and claims following (that is to say) :-
Firstly, the use or application of papier maché in the construction of
"carriages used on railroads..
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Secondly, the mode described of constructing carriages used on railroads.
Thirdly, the mode described of covering the roofs of carriages used on
"railroads.
Fourthly, the methods described of constructing axles for carriages used
"on railroads.
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Fifthly, the method described of constructing wheels for carriages used on
"railroads with a subdivided inner ring for the support of wooden or papier
"maché felloes.
"Sixthly, the forming the naves and axles of the wheels of carriages used on
"railroads of wrought iron in one piece.
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Seventhly, the method described of forming the naves and axles of the
"wheels of carriages used on railroads in one piece.
Eighthly, the method described of forming the naves of the wheels for
carriages used on railroads of wrought iron.

page_text: 65
Ninthly, the use or application of bended hoops or rings of wood in the
"construction of wheels for carriages used on railroads.
"Tenthly, the use or 'application of papier maché in the construction of
"wheels for carriages used on railroads.
"Eleventhly, the use or application of compressed wood for forming the
"felloes and spokes of wheels for carriages used on railroads.
"
Twelfthly, the method described of forming the felloes and spokes .of.
"wheels for carriages used on railroads with compressed wood."
And in the claim in the said Specification contained or expressed in these
words, "Thirteenthly, the use or application of wedges of wood or papier
"maché in the construction of wheels for carriages used on railroads," I do.
hereby disclaim the words or papier maché;" and for the reasons aforesaid.
I do hereby alter the said claim, so that the same shall be as follows (that is
to say "Firstly, I claim the use or application of wedges of wood, as.
"described in the said Specification, in the construction of wheels for carriages
"used on railroads."
And in the claim in the said Specification contained or expressed in these
words, "Fourteenthly, the methods described of constructing the wheels for
I carriages used on railroads with fellces of wood or papier maché, I do
hereby disclaim the words "or papier maché;" and for the reasons aforesaid
I do hereby alter the said last-mentioned claim, so that the same shall be as
follows (that is to say): Secondly, I claim the method described in the said
Specification, and not herein-before disclaimed, of constructing the wheels
"for carriages used on railroads with felloes of wood."
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And I do hereby further disclaim the words following (that is to say):-
Fifteenthly, the curving towards each other bars of wrought iron in forming
compound spokes of wheels for carriages used on railroads."
And as to the claim in the said Specification contained or expressed in these
words, "Sixteenthly, the methods described of constructing the wheels for
carriages used on railroads with compound spokes which curve towards each
"other," I do, for the reasons aforesaid, alter the said last-mentioned claim, so
that the same shall be as follows (that is to say):-"Thirdly, I claim the
"methods described in the said Specification, and not herein-before disclaimed,
"of constructing the wheels for carriages used on railroads with compound
spokes which curve towards each other, in manner described in those parts of
the Specification not herein-before disclaimed."
$6
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"
And I do hereby further disclaim the words,-"Seventeenthly, the method
described of constructing the wheels of carriages used on railroads with
spokes formed of bars of wrought iron, having two bends in each bar, with

page_text: "small spaces between such bends. I do not limit myself to the exact dimen-
"sions and proportions herein-before set forth, as I have merely described what
"I-deem best suited to carry out the objects intended."
.
And I do hereby further disclaim the several Figures represented in the
Sheet of Drawings annexed to the said Specification, and herein-after men-
tioned (that is to say), the several-Figures représented in the said: Sheet-of
Drawings, and respectively numbered or marked as follows:-"Fig. 1,"
"Fig. 2," "Fig. 3,". "Fig. 4," "Fig. 5,". "Fig. 6,": "Fig. 7," "Fig. 8,"
"Fig. 9," "Fig. 10," and "Fig. 17."
.
And I, the said John Coope Haddan, do further declare that the above- 1
written Disclaimer and Memorandum of Alteration are not, nor are either of
them respectively, or any part thereof respectively, intended to extend the
exclusive right granted by the Letters Patent, and that these Presents shall
not extend the said exclusive right in any manner whatsoever...
'In witness whereof, I, the said John Coope Haddan, have hereunto set 1
my hand and seal, this Thirty-first day of March, in the year of our
Lord One thousand eight hundred and forty-seven.
1847, before me,
W HORNE.
To the Clerk of the Patents of England..
This is to certify, that John Coope Hadden, of No. 14, Lincoln's Inn Fields,
in the County of Middlesex, Civil Engineer, has applied, to me for leave to
enter with you the above-written. Disclaimer and Memorandum of Alterations
of a certain Invention, for which Letters Patent were duly.granted to Edmund
Tayler, of King William Street, in the City of London, Gentleman, under, the
Great Seal, date the 11th day of May 1841,. and of the Specification which
was enrolled on the 10th of November. 1841; and, on considering of the said
application, 'I directed liim to advertise his said Disclaimer and Memorandum
of Alterations in the London Gazette, Times, Morning Chronicle, Midland
Counties Herald, Liverpool Mercury, and Newcastle Courant newspapers; and
such advertisements have been duly made in the said London Gazette, and the
said before-mentioned newspapers accordingly, and, no objection having been
made to the said application, I have accordingly granted leave to the said

page_text: John Coope Haddan to file his said Disclaimer and Memorandums of Altera-
tion, pursuant to the Statute passed in the 5th & 6th years of the reign of His
late Majesty, entitled An Act to amend the Law touching Letters Patent for
Inventions.
Dated this 1st day of April, 1847.
JOHN JERVIS, Temple.
Inrolled the Third day of April, in the year above written.