CERTAIN IMPROVEMENTS IN CORK AND OTHER STOPPERS, AND A NEW COMPOSITION OR SUBSTANCE WHICH MAY BE USED AS A SUBSTITUTE FOR AND IN PREFERENCE TO CORK, AND A METHOD OR METHODS OF MANUFACTURING THE SAID NEW COMPOSITION OR SUBSTANCE INTO BUNGS, STOPPERS, AND OTHER USEFUL ARTICLES
Year: 1844

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
HANCOCK, of Grosvenor Place, in the County of Middlesex, Artist, send
greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Fifteenth day of May, in the seventh year of Her reign, did, for
Herself, Her heirs and successors, give and grant unto me, the said Charles
Hancock, my exors, admors, and assigns, Her especial licence, full power,
sole privilege and authority, that I, the said Charles Hancock, my exors,
admors, and assigns, or such others as I, the said Charles Hancock, my exors,
admors, or assigns, should at any time agree with, and no others, from time to
time and at all times thereafter, 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 the Town of Berwick-upon-Tweed, my Inven-
tion of "CERTAIN IMPROVEMENTS IN CORK AND OTHER STOPPERS, AND A NEW
COMPOSITION OR SUBSTANCE WHICH MAY BE USED AS A SUBSTITUTE FOR AND IN
PREFERENCE TO CORK, AND A METHOD OR METHODS OF MANUFACTURING THE SAID
NEW COMPOSITION OR SUBSTANCE INTO BUNGS, STOPPERS, AND OTHER USEFUL
ARTICLES;" in which said Letters Patent there is contained a proviso that I,
דו

page_text: the said Charles Hancock, shall cause a particular description of the nature
of my said Invention, and in what manner the same is to be performed, under
my hand and seal, to be enrolled in Her Majesty's High Court of Chancery
within six calendar months next and immediately after the date of the said in
part recited Letters Patent, as in and by the same, reference being thereunto
had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Charles Hancock, hereby declare that the nature of the said Invention, and
in what manner the same is to be performed, are fully ascertained and
described in and by the present Specification thereof, that is to say:―
The nature of my said Invention consists,-
Firstly, in manufacturing cork and other stoppers and useful articles of a
new composition or compound substance, formed in manner herein-after
described, from common cork or wood sawdust, and caoutchouc, or instead of
caoutchouc a vegetable extract recently introduced from the East Indies, but
never, to the best of my knowledge, before made use of in the arts and manu-
factures of this country, called gutta percha (sometimes gutta tuban), which
possesses elastic and adhesive properties similar to caoutchouc, but is dis-
tinguishable from it in being free from any offensive smell, and in not being
acted on by oils (the essential oils excepted), or at least only acted on by them
with comparative difficulty; or instead of either caoutchouc or gutta percha
alone, a mixture consisting partly of caoutchouc and partly of gutta percha;
or instead of either caoutchouc or gutta percha, or caoutchouc and gutta
percha combined, a mixture of treacle and glue.
Secondly, in manufacturing cork and other stoppers aud useful articles by
uniting the said new composition or substance when in the state of blocks or
sheets with similar blocks or sheets of caoutchouc or gutta percha, or caoutchouc
and gutta percha combined.
Thirdly, in making cork and other stoppers and useful articles partly of
pieces of common cork and partly of pieces of the said new composition or
substance, or of pieces of caoutchouc, or pieces of caoutchouc and gutta
percha combined, or wholly of pieces of common cork cemented together
by caoutchouc or gutta percha or caoutchouc and gutta percha combined,
or some other suitable cement; and,
Fourthly, in manufacturing cork and other stoppers and useful articles
by making the interior or main body of the article of the common cork, and
coating or casing it externally, and either wholely or in parts only, with the
said new composition or substance, or with a mixture of caoutchouc and gutta
percha, or with caoutchouc alone, or gutta percha alone,

page_text: And the manner in which the said Invention is performed is as follows:--
When the said new composition or compound is made of common cork and
caoutchouc, I first rasp or grind the cork to powder, and add as much
thereof to caoutchouc in a fluid state or state of solution as is necessary to
give sufficient consistency to the mixture. I then transfer the mixture to
moulds of the shape and size of the cork and other stoppers and useful
articles into which the same is intended to be manufactured, and leaveitthere
to settle and solidify. Where wood sawdust is substituted for the ground
cork the same process is followed, and the wood either sawn for the purpose
or common sawdust employed. When gutta percha in a fluid state is em-
ployed, either by itself or in combination with caoutchouc, instead of the
caoutchouc solution, it is either made use of in its native liquid state or a
solution of it is obtained by the same means by which caoutchouc is now ordi-
narily dissolved; or instead of mixing the ground cork or sawdust with the
caoutchouc or gutta percha, or caoutchoue or gutta percha in a fluid state, the
mixture may be effected by mastication, as follows, that is to say:-Caoutchouc
or gutta percha, or gutta percha and caoutchouc, may be put in a solid state
into a masticating machine, such as is now commonly used in the manufac-
tures of caoutchouc, and when the same is brought by the action of the
machine and the heat applied to it to a plastic or kneadable state, as much of
the ground cork or sawdust may be thrown in as the plastic mass will readily
and combine with. And when the said several matters have been
thus thoroughly incorporated, I either transfer the plastic mass to large moulds
of a square, oblong, or any other suitable shape, where it is left to settle and
solidify, and whence it is afterwards taken to be cut up into cork and other
stoppers and useful articles, or I at once transfer the plastic mass from the
masticating machine to moulds of the size and form of the cork or other
stoppers or useful articles into which the same is intended to be formed, and
leave it there, as in the other case, to settle and solidify. When glue and
treacle are made use of to form the new composition or compound substance,
I melt the glue and treacle in an ordinary glue pot, using more or less treacle
according as more or less softness is desired to be given to the composition,
and add the ground cork or sawdust as before; the plastic mass is then
transferred to moulds either large or small, as herein-before directed when
caoutchouc or gutta percha forms a part of the composition. Should the new
composition be required to be of a very close texture, it is put into collapsable
moulds (such as are well known to moulders) and there subjected to more or
less pressure. To make the gutta percha by itself into sheets or blocks suitable
for the purposes of this Invention, it is treated generally in the same manner
take
up

page_text: as caoutchouc or india rubber is now commonly treated; that is to say, it is
taken in the solid state and passed through a masticating machine of the
description aforesaid, and then placed in moulds under pressure where it is
allowed to remain till it is nearly or quite cold; sheets or blocks may be also
made in the same manner, composed only in part of gutta percha and in part
of caoutchouc, using either equal quantities of each or a greater quantity of
one than the other, as may be found or deemed expedient. To manufacture
blocks of the said new composition or substance, or blocks of caoutchouc, or
blocks of the said new extract called gutta percha, or blocks composed in
part of caoutchouc and in part of gutta percha, into cork and other stoppers
and useful articles, or into parts of such articles, I place the same in a sheet
cutting machine, such as is now ordinarily employed in cutting blocks of
caoutchouc or india rubber into sheets, and cut them into lengths of the
thickness required; I then divide the lengths into pieces of any suitable
breadth, and round them up or otherwise fashion them by means of such tools,
moulds, or other instruments as cork cutters and caoutchouc manufacturersare
in the habit of employing for such purposes. When the said new composition
is to be united in the state of blocks or sheets with caoutchouc or gutta
percha, or caoutchouc and gutta percha combined, in the like state of blocks
or sheets, in order to the manufacture of the two combined articles into cork
and other stoppers and useful articles, the union is effected either by simple
pressure, in the same manner as pieces of sheet or block caoutchouc are now
united, or by means of fluid caoutchouc, or of gutta percha, or of caoutchouc
and gutta percha combined, and two, three, four, or more such sheets may be
so united, and there may be either an equal number of blocks or sheets of the
one substance or an equal number of blocks or sheets of the other,ora greater
number of one than the other, according as it may be found expedient that
the one or the other should predominate. These compound sheets or blocks
are then cut up into pieces, and these pieces rounded or otherwise fashioned,
in the same way as blocks consisting of the new composition alone or its sub-
stitutes, are herein-before directed to be treated. In making corks and other
stoppers partly of pieces of common cork and partly of pieces of the said new
composition, or of caoutchouc or gutta percha, or of caoutchouc and gutta
percha combined, the latter may be attached to the former, either at top orat
bottom, or both at top and bottom; and the cement which I prefer to employ,
in order to unite the pieces together, is a solution either of caoutchouc or of
gutta percha, or a solution of caoutchouc and gutta percha combined. I find
that corks thus made are perfectly proof against the ravages of the worm
which is so destructive to common corks. To make cork and other stoppers

page_text: wholly of a combination of pieces of common cork, the pieces are laid one
above the other and cemented together by means of a solution of caoutchouc
or of gutta percha, or of caoutchouc and gutta percha combined, or some other
suitable cement. Such corks also resist the ravages of the worm, but in a
less degree than those last before mentioned. To case externally cork and
other stoppers and useful articles, the main body of which is made of common
cork with the said new composition or other substitute, as aforesaid, the
article is either done over with the composition or other substitute while in a
fluent or pasty state, and layer after layer added till the coating is of sufficient
thickness, or it is at first done over with a thin solution of either caoutchouc
or gutta percha, or of a mixture of caoutchouc and gutta percha superposed
on the solution, or they are cased with sheets of any of the before-named
compositions.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I am aware that corks
have been before made consisting of two pieces joined lengthwise by
Vancouver's or some other strong cement, and then capped with sheet
caoutchouc, and that I lay no claim to corks so formed. I declare further,
that I am aware that ground cork has been combined with caoutchouc for
other purposes than the manufacture of cork and other stoppers, and that I
lay no claim to such combination for such other purposes. I declare further,
that I am aware that caoutchouc, both in the sheet state and in a state of
solution, has been before employed as a coating or covering for corks and other
stoppers made interiorly of fibrous materials, and that I lay no claim to such
employment of it. But that what I claim is,-
Firstly, the new composition or substance before described, and the employ-
ment of the same in any of the states and according to any of the methods
aforesaid in the manufacture of cork and other stoppers and useful articles,
but confining always my claim as regards caoutchouc to the use of the same
in combination with gutta percha, or when combined by itself with ground
cork or wood sawdust, for the purpose of being manufactured into cork and
other stoppers.
Secondly, the employment of gutta percha in any of the states or according
to any of the methods before described, in the manufacture of cork and other
stoppers and useful articles; and,
Thirdly, the making of cork and other stoppers and useful articles of
common cork, cased or coated in manner aforesaid with the said new compo-
sition or with a mixture of ground cork and any suitable oil or varnish, or
with caoutchouc alone, or gutta percha alone, or with a mixture of caoutchouc

page_text: and gutta percha, excepting always stoppers made of fibrous materials in so far
as respects the application thereto of caoutchouc alone.
In witness whereof, I have hereunto setmy hand and seal, this Fifteenth
day of November, One thousand eight hundred and forty-four.
CHARLES (L.S.) HANCOCK.
AND BE IT REMEMBERED, that on the Fifteenth day of November,
in the year of our Lord 1844, the aforesaid Charles Hancock came before our
said Lady the Queen in Her Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained and specified, in form
above written. And also the Specification aforesaid was staruped according
to the tenor of the Statute made for that purpose.

page_text: In the Matter of a Patent granted to Charles Hancock, of Grosvenor
Place, in the County of Middlesex, Artist, for his Invention of
"Certain Improvements in Cork and other Stoppers, and a new
Composition or Substance which may be used as a Substitute forand
in preference to Cork, and a Method or Methods of Manufacturing
the said new Composition or Substance into Bungs, Stoppers, and
other Useful Articles," bearing date at Westminster, the Fifteenth
day of May, One thousand eight hundred and forty-four, and to
which a Specification has been duly inrolled.
DISCLAIMER AND MEMORANDUM OF ALTERATION proposed
to be entered by the said Patentee according to the Statute in such case
made and provided.
I, the said Charles Hancock, did, in my said Specification, amongst other
matters,describe and claim the use of india rubber (caoutchouc) in combina-
tion with cork in the state of powder, and also with wood sawdust, for the
making of cork and other stoppers; but the same has not turned out to be of
such utility as to induce me to wish to retain it as part of my said Patent, for
which reason I wish to disclaim, and do hereby disclaim, all parts of my said
Specification which describe and claim the use of caoutchouc or india rubber
in combination with powdered cork or with wood sawdust.
And I, the said Charles Hancock, did, amongst other things, describe and
claim, in my said Specification, the use of treacle and glue in the manufacture
of cork and other stoppers and useful articles; but I have found since the
enrolment of my said Specification that such part of my Invention is not
useful, for which reason I wish to disclaim, and I do hereby disclaim, all parts
of my said Specification which describe and claim the use of glue and treacle
in the manufacture of cork and other stoppers and useful articles.
And I, the said Charles Hancock, since the enrolment of my said Specification,
have found that the parts of my said Invention, which at the commencing or
introductory portion of my said Specification are respectively mentioned under
the heads Thirdly and Fourthly, are not useful, for which reason I wish to
disclaim, and I do hereby disclaim, all parts of my said Specification which
describe and claim such parts of my said Invention.
And I, the said Charles Hancock, since the enrolment of my said Specification

page_text: have not been able to obtain any considerable quantity of gutta percha in
its native fluid state; for which reason I wish to disclaim, and I do hereby
disclaim,all parts of the said Specification which describe and claim the use of
gutta percha in its native fluid state; and as the title would be inconsistent with
the Invention which will remain aftersuch Disclaimer is made,I,the said Charles
Hancock, for such reason wish to disclaim, and do hereby disclaim, the words
"Certain Improvements in Cork and other Stoppers, and " in the said title.
And in order that the effect of such Disclaimer may be understood, I, the said
Charles Hancock, have hereunto annexed a copy of my said Specification,
with the parts disclaimed ruled through or struck out with red ink, and which I
hereby declare to be part of this my Disclaimer and Memorandum of Alteration.
And I have altered the said Specification by introducing the words "the
manner herein described in" at an early part of my said Specification, to
make that part of the statement more correct. And I have further altered
my said Specification by striking out the words "tools, moulds, or other" in
another part of my said Specification, those words being incorrect, and I have
made other slight verbal alterations to make sense.
In witness whereof, I, the said Charles Hancock, have hereunto set my
hand and seal, this Sixth day of June, in the year of our Lord One
thousand eight hundred and fifty-one.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
HANCOCK, of Grosvenor Place, in the County of Middlesex, Artist, send
greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by HerLet-
ters Patent under the Great Seal of Great Britain, bearing date at Westminster,
the Fifteenth day of May, in the seventh year of Her reign, did, for Herself,
Her heirs and successors, give and grant unto me, the said Charles Hancock,
my exors, admors, and assigns, Her especial licence, full power, sole privilege
and authority, that I, the said Charles Hancock, my exors, admors, and
assigns, or such others as I, the said Charles Hancock, my exors, adñiors, or
assigns, should at any time agree with, and no others, from time to time and
at all times thereafter, 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, my Invention
of "Certain Improvements in Cork-and-other-Stoppers; and A NEW COMPOSITION OR

page_text: SUBSTANCE, WHICH MAY BE USED AS A SUBSTITUTE FOR AND IN PREFERENCE TO
CORK, AND A METHOD OR METHODS OF MANUFACTURING THE SAID NEW COMPOSITION
OR SUBSTANCE INTO BUNGS, STOPPERS, AND OTHER USEFUL ARTICLES;" in which
said Letters Patent there is contained a proviso that I, the said Charles
Hancock, shall cause a particular description of the nature of my said Inven-
tion, and in what manner the same is to be performed, under my hand and
seal, to be enrolled in Her Majesty's High Court of Chancery within six
calendar months next and immediately after the date of the said in partrecited
Letters Patent, as in and by the same, reference being thereunto had, will
more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Charles Hancock, hereby declare that the nature of the said Invention, and
in what manner the same is to be performed, are fully ascertained and
described in and by the present Specification thereof, that is to say :-
The nature of my said Invention consists,―
Firstly,in manufacturing eerk-and-other stoppers and useful articles of a new
composition or compound substance,formed in manner herein-after described,
from common cork or wood sawdust, and eaontehone, or instead of caoutchoue
a vegetable extract recently introduced from the East Indies, but never, to the
best of my knowledge, before made use of in the manner herein described in the
arts and manufactures of this country called gutta percha (sometimes gutta
tuban) which possesses elastic and adhesive properties similar to caoutchouc,
but is distinguishable from it in being free from any offensive smell, and in
not being acted on by oils (the essential oils excepted), or at least only acted
on by them with comparative difficulty; or instead of either-enoutehone or gutta
percha alone, a mixture consisting partly of caoutchouc and partly of gutta
percha, or instead of either enentehone-or-gutta perche, or caoutchone-and-gatta
pereha-combined, a mixture of treacle-and-glue.
Secondly, in manufacturing cock and other stoppers and useful articles by
uniting the said new composition or substance, when in the state of blocks or
sheets, with similar blocks or sheets of caoutchouc or gutta percha, or caout-
chouc and gutta percha combined.
Thirdly,-in-making cork-and-other-stoppers-and-useful-articles-partly-of-pieces-of
common cork-and-partly-of-pieces of the said new composition or substance, or of
pieces-of-eaoutehone,-or-pieces-of-enoutehone-and gutte pereha-combined, or wholly
of-pieces--of-common--cork-cemented--together--by caoutchone-or-gutta-percha
or-eaoutehone-and--gutta-pereha-combined,-or-come-other suitable-coment. And,
Fourthly,-in--manufacturing cork--and--other-stoppers and useful-articles--by
making-the-interior-or-main-body-of-the-article-of-the-common-eork,-and-coating-or
easing it-externally;-and-either wholly-or-in-parts-only-with-the-said-new-composi

page_text: tion-or-cnostanee, of with-a-mixture of each porn
ehone-alone-or-gutta-percha-alone,
.
And the manner in which the said Invention is performed is as
follows: When the said new composition or compound is made of common
cork and enoutehone, I first rasp or grind the cork to powder, and
add-as-much-thereof to--eaoutchoue--in--a Anid--state- or state-of-solution as-is
necessary-to-give-sufficient-consistency-to-the-mixture. I then-transfer the-mixture
to-moulds of the shape-and-size-of-the-cork-and-other-stoppers-and-useful-articles
into which the-same-is-intended-to-be-manufactured, and-leave-it there-to settle-and
solidity. Where wood sawdust is substituted for the ground cork the-same
process-is-followed-and-the-weed-either-cawn-for-the-purpose-or common sawdust
is employed. When gutta percha in-a-Auid state is employed either by itself
or in combination with caoutchouc, instead of the caoutchoue-solution, it is either
made use of in its native-liquid-state-or a solution of it is obtained by the same
means by which caoutchouc is now ordinarily dissolved; or instead of mixing
the ground cork or sawdust with the enontehone-or gutta percha, or-eneutehone
or-gutta pereha in a fluid state, the mixture may be effected by mastication as
foliows, that is to say:-Caoutchone-or gutta percha,-er-gutta-percha-and-eaont-
ehenc, may be put in a solid state into a masticating machine, such as is now
commonly used in the manufactures of caoutchouc, and when the same is
brought by the action of the machine and the heat applied to it to a plastic
or kneadable state, as much of the ground cork or sawdust may be thrown in
as the plastic mass will readily take up and combine with. And when the
said several matters have been thus thoroughly incorporated, I either transfer
the plastic mass to large moulds of a square, oblong, or any other suitable
shape, where it is left to settle and solidify, and whence it is afterwards taken
to be cut up into cork and other stoppers and useful articles, or I at once
transfer the plastic mass from the masticating machine to moulds of the size and
form of the cork or other stoppers or useful articles into which the same is in-
tended to be formed, and leave it there, as in the other case, to settle and solidify.
When-glue-and-treacle-are-made-use-of-to-form-the new composition-or-compound
substance,-I-melt-the-glue-and-trenele-in-an-ordinary-gine-pot,-using--more-or-less
treacle-according-as-more-or-less-softness-is-desired-to-be given to-the-composition,
and-add the-ground cork-or sawdust as before.---The plastic mass is then transferred
to-moulds-either large-or-small;-as-herein-before-directed-when-enontchoue-or-gutta
percha-forms-a-part-of the composition.---Should-the-new-composition--be-required
to be-of-a-very--close-texture, it--is--put-into-collapsable--moulds-(such-as-are--well
To make the
known-to-moulders)-and-there-subjected-to-more-or-less-pressure.
gutta percha by itselfinto sheets or blocks suitable for the purposes of this Inven-
tion, it is treated generally in the same manner as caoutchouc or india rubber

page_text: is now commonly treated; that is to say, it is taken in the solid state and passed
through a masticating machine of the description aforesaid, and then placed in
moulds under pressure, where it is allowed to remain till it is nearly or quite cold.
Sheets or blocks may be also made in the same manner composed only in part of
gutta percha and in part of caoutchouc, using either equal quantities of each or
a greater quantity of one than the other, as may be found or deemed expedient.
To manufacture blocks of the said new composition or substance or blocks-of
ceentchouc-or-blocks of the said new extract called gutta percha, or blocks
composed in part of caoutchouc and in part of gutta percha, into cork and
other stoppers and useful articles, or into parts of such articles, I place the
same in a sheet cutting machine, such as is now ordinarily employed in cutting
blocks of caoutchone or india rubber into sheets, and cut them into lengths
of the thickness required. Ithen divide the lengths into pieces of any suitable
breadth, and round them up or otherwise fashion them by means of such tools,
monlds, or other instruments as cork cutters and caoutchouc manufacturers are
in the habit of employing for such purposes. When the said new composition
is to be united in the state of blocks or sheets with caoutchouc or gutta
percha, or caoutchouc and gutta percha combined in the like state of blocks
or sheets, in order to the manufacture of the two combined articles into cork
and other stoppers and useful articles, the union is effected either by simple
pressure in the same manner as pieces of sheet or block caoutchouc are now
united, or by means of fluid caoutchouc or of gutta percha, or of caoutchouc
and gutta percha combined, and two, three, four, or more such sheets may be
so united, and there may be either an equal number of blocks or sheets of the
one substance, or an equal number of blocks or sheets of the other, or a
greater number of one than the other, according as it may be found expedient
that the one or the other should predominate. These compound sheets or
blocks are then cut up into pieces, and these pieces rounded or otherwise
fashioned in the same way as blocks consisting of the new composition alone,
or-its-substitutes, are herein-before directed to be treated. In making corks and
other-stoppers-partly of pieces of common-cork-and-partly-of-pieces-of-the-said-new
composition, or of eacutehone or--gutta-percha, or of caoutchouc--and gutte
percha-combined,-the-latter-may-be-attached to--the--former--either-at--top-or-at
bottom,-or-beth--at--top--and--bottom; and the cement--which-I-prefer-to employ
in order to unite--the-pieces--together--is--e--solution--either--of--caoutchouc or of
gutta-percha,-or-a-solution-of-caoutchoue-and-gutta-pereha-combined. I find that
eorke-thus-made-are-perfectly-proof-against-the-ravages-of-the--worm which is so
destructive-to-common-oorks.-To-make-cork-and-other--stoppers wholly-of-a-com-
bination-of-pieces-of-common-cork;-the--pieces--are-laid one--above--the--other--and
eemented-together-by-means of a solution of caoutchouc-or-of-gutta-percha,-or-of

page_text: enoutehone-and--gatta-perche combined, or come other suitable-cement. Such
corks-also-resist-the-ravages of the worm, but in-a loss degree than those last
before-mentioned. To-easo-externally-cork-and-other-stoppers and-useful-articles,
the-main-body-of-which-is-made-of-common-cork, with the said-new-composition
or-other-substitute, as aforesaid, the-article-is-either-done-over-with the-composition
or-other-cubstitute-while-in-a-fluent-or-pasty-state, and layer-after-layer-added-till
the-coating is of sufficient thickness, or-it-is-at-first-done-over-with-a-thin-solution
of either-caoutchous-or-gutta-percha, or-of-a-mixture-of caoutchoue-and-gutte
percha-superposed-on-the-solution,-or-they-are-eased with sheets of any of the
before-named-compositions.
And-having-now-described-the-nature of my said Invention, and-in-what-manner
the same-is-to-be-performed, I-declare-that I-am-aware-that-corks-have-been before
made, consisting of two-pieces-joined--lengthwise-by Vancouvers'-or-some-other
strong-cement,-and-than-capped-with sheet emontehone,-and-that-I-lay-no-claim-to
corks-so-formed. I-declare further, that-I-am aware-that-ground-cork has been
eombined-with-caoutchoue for other-purposes-than-the-manufacture-of-cork and
other-stoppers,-and-that I lay no claim-to-such-combination-for-such-other-purposes.
I declare-farther,-that-I-am-aware that caoutchoue, both-in-the-sheet-state and in a
state-of solution,-has-been-before-employed-as-a-coating or covering-for-corks-and
other stoppers-made interiorly of fibrous-materials, and-that-I-lay-no- claim--to
such-employment-of-it. But-that What I claim is,-
Firstly, the new composition or substance before described, and the employ-
ment of the same in any of the states and according to any of the methods
aforesaid in the manufacture of cork and otherstoppers and useful articles, but
confining always my claim as regards caoutchouc to the use of the same in
combination with gutta percha, or-when-combined-by-itself-with-ground-cork-or
wood-sawdust, for the purpose of being manufactured into cork and other
stoppers.
Secondly, the employment of gutta percha in any of the states, or according
to any of the methods before described in the manufacture of cork and other
stoppers and useful articles; and,
Thirdly, the making of cork and other stoppers--and useful articles of
common-cork;-eased-or-coated in-manner aforesaid, with the said new-composition,
or--with--a--mixture of ground--cork--and--any-suitable--oil or varnich, -or-with
caoutchone--alone, or gutta pereha--alone, or with-a-mixture-of--eaoutchone and
gutta-percha, excepting-always stoppers--made-of--fibrous--materials in so for-as
respects the application thereto-of-caoutchouc-alone.
In witness whereof, I have hereunto set my hand and seal, this
Fifteenth day of November, One thousand eight hundred and forty-

page_text: To the Clerk of the Patents of England.
This is to certify that the above-named Charles Hancock, of Grosvenor
Place, in the County of Middlesex, Artist, has applied to me for leave to enter
with you the above-written Disclaimer & Memorandum of Alteration of part of
the Title andSpecification of a certain Invention for which Letters Patentwere
granted to himunder the Great Seal of Great Britain,dated at Westminster, the
15th day of May, 1844,and to which a Specification was duly enrolled; andon
considering the said application I directed him to advertise his said Disclaimer
& Memorandum of Alteration in the London Gazette, and in the Times and
Morning Herald newspapers, and such advertisements having been duly made
viz., in the London Gazette, April the 29th, 1851, in the Morning Herald
newspaper, April 30th, 1851; and in the Times newspaper, May 5th, 1851;
and no valid objection having been made to the same, I hereby grant leave to
the said Charles Hancock to file his said Disclaimer & Memorandum of
Alteration pursuant to the Statute passed in the fifth & sixth years of the
reign of His late Majesty King William the Fourth, entitled "An Act to
amend the Law touching Letters Patent for Inventions."
AND BE IT REMEMBERED, that on the Sixth day of June, in the
year of our Lord 1851, the aforesaid Charles Hancock came before our
said Lady the Queen in Her Chancery, and acknowledged the Disclaimer
aforesaid, and all and every thing therein contained and specified, in form
above written. And also the Disclaimer aforesaid was stamped according to
the tenor of the Statute made for that purpose.