Improvements in Under Vests.
Year: 1891

page_text: Date of Application, 15th June, 1891
Complete Specification Left, 19th Aug., 1891-Accepted, 3rd Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Under Vests.
JOHN ROGERSON 304 Brixton Road London S.W. do hereby declare the nature
of this invention to be as follows
The human body requires more warmth at the back than over the chest and
abdomen, for the following reasons-
1stly. Man's clothing is usually less thick or warm on the back & shoulders, and
further, the over clothes do not cling so closely at the back as in the front.
2ndly. The spinal column, kidneys and the back of the lungs require more
protection from the cold than the chest, which is well covered with muscle, or the
abdomen which is a heat conservator.
Now, most undervests are made of one substance, or of equal warmth both back
& front, excepting, however, some which are made with the material doubled over
the chest the usual mode of doing which is by laying a piece of material on the
chest of the vest and sewing or weaving it in its place-thus leaving the back of the
body, by contrast, colder. The doubling of the material in the above stated way
reduces the porosity of the garment and thus checks the exhalations from the skin-
and causes an unnecessary strain on the lungs, liver & kidneys.
.
By my invention I propose to equalise the warmth of the body by supplying
warmth where it is deficient and most required. I propose to do it in the following
manner-by thickening the back, or part of the back of the undervest in such a way
that the cellular structure of the garment shall be considerably increased without
clogging, but rather helping the exhalatory functions of the skin. The mode of
doing this will be as follows-By weaving or knitting the vest of a yarn made of
wool-dyed or undyed or mixture of wool & cotton or silk or any other suitable
material. The front of the vest shall be made of a single weaving or stitch-such
as is usual in hosiery manufacture-the back or part of the back of the vest shall
be woven in a diced, mat, fancy or ribbed style of weaving or pattern-and without
doubling the material-thus adding to the density or warmth giving properties of
the garment without increasing the weight of the garment in like proportion as
would be the result if the material were simply doubled. The result of my
invention will be a greatly increased power of retaining heat and absorbing and
dispersing perspiration and reducing the risk of chills in changeable weather, and
will prevent the ill effects of heavy but non-porous underwear.
Dated this the 15th day of June 1891.
JOHN ROGERSON.
COMPLETE SPECIFICATION.
Improvements in Under Vests.
JOHN ROGERSON 304 Brixton Road London, S. W. Hosier 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 :-
The human body requires more warmth at the back than over the chest and
abdomen for the following reasons―
1stly. Man's clothing is usually less thick or warm on the back and shoulders, and
further the over clothes do not cling so closely at the back as in the front.
2ndly. The spinal column, kidneys and the back of the lungs require more
protection from the cold than the chest, which is well covered with muscle, or the
abdomen which is a heat conservator.

page_text: Now most undervests are made of one substance or of equal warmth, both back
and front, excepting, however, some which are made with the material doubled over
the chest the usual mode of doing which is by laying a piece of material on the
chest of the vest and sewing or weaving it in its place:-thus-leaving the back of
the body, by contrast, colder.
The doubling of the material in the above stated way reduces the porosity of the
garment, and. thus checks the exhalations from the skin, and causes an unnecessary
strain on lungs, liver, and kidneys.
By my invention, I propose to equalise the warmth of the body by supplying
warmth where it is deficient, and most required. I propose to do it in the
following manner-By thickening the back, or part of the back, of the undervest
in such a way that the cellular structure of the garment shall be considerably
increased without clogging, but rather helping, the exhalatory functions of the
skin.
The mode of doing this will be as follows-By weaving or knitting the vest of a
yarn made of wool-dyed or undyed-or mixture of wool and cotton, or silk, or any
suitable material.
The front of the vest shall be made of a single weaving, or stitch, such as is usual
in hosiery manufacture. The back or part of the back of the vest shall be woven
in a diced-mat-fancy or ribbed style of weaving or pattern-without doubling
the material, thus adding to the density or warmth giving properties of the garment
without increasing the weight in like proportion as would be the result if the
material were simply doubled. The result of my invention will be a greatly
increased power of retaining heat, and absorbing and dispersing perspiration, and
reducing the risk of chills in changeable weather, and will prevent the ill effects of
heavy but non-porous underwear.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is―
The improvement in under vests-in increasing the thickness of the backs of same
by such methods and for the purposes herein set forth.
Dated this the 19th day of August 1891. –
JOHN ROGERSON.