Improvements in the Manufacture of Leather Belts.
Year: 1899

page_text: Date of Application, 28th Oct., 1899
Complete Specification Left, 27th July, 1900-Accepted, 8th Sept., 1900
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Leather Belts.
I, EDWARD FRANK SARGEANT, of Landen Lodge, Stroud, in the County of
Gloucester, Engineer, do hereby declare the nature of this invention
to be as follows:-
The object of this invention is to improve the manufacture of comparatively
nariow leather belts say up to about three inches in width from strips of leather
cut spirally from the skins
To manufacture such comparatively narrow belts the spiral strips are accord-
ing to this invention cut of the full width of the intended belt
Both
The strip is then split into two layers and one layer say the grain split is
stretched straight down to a long table and held so either hetween iron guide
bais o by means of wood pegs The other (say the flesh) layer is then divided
longitudinally into two halves and these two halves are then stretched over the
grain split being first tuined end for end so that when they are placed over the
grain split they will tend to turn in the contrary direction to the latter
these flesh strips are stretched with a tension approximately equal to that imposed
upon the wider grain split, and while they are so stretched that half of the
flesh split which has been on the inside of the spiral is nailed down in position
The other half of the flesh split is stretched still more however so that it becomes
from 2 to 10 per cent longer than the first half of the flesh split It is then
nailed in position and cross lines are scribed on the belt and on the table so as
to ensure that when the two layers of splits are subsequently cemented togethei
the upper splits may have the same tension put upon them by again bringing
the lines upon the strips and upon the table to coincide. The amount of extra
tension imposed upon the outer half of the flesh strip is a matter foi experience
but unless it is 80 stretched the belt will be found to constantly travel towards
one edge of the pulley It must be understood that both halves of the flesh split
have their curvatures in the same direction and that the only object of dividing
the flesh split longitudinally into two halves is to enable a little more tension
to be imposed upon that part of it which formed the outside of the spiral
Instead of turning the flesh split end for end the same result may be obtained
by taking a fleah split which has been out from a strip having a right hand
spiral and forming it into a belt with a grain split cut from a strip having a
left hand spiral a method which has the advantage that similar parts of the
hide are applied to each other Narrow belts such as one inch or one and a
balf inches formed in the above way by dividing the strips into two splits or
layers and turning one split end for end before cementing the one split to the
other do not need to have the flesh split divided into two halves longitudinally
D
871
1
1000

page_text: Improvements in the Manufacture of Leather Belts.
I, EDWARD FRANK SARGEANT, of Linden Lodge, Stroud, in the County of
Gloucester, 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.-
In my former Specification No. 26985 of 1898 I described the manufacture of
comparatively wide leather belts from spirally cut and split strips
The object of this invention 18 to improve the manufacture of comparatively
naniow leather belts say up to about three inches in width from stips of leather
cut spirally from the skins.
To manufacture such comparatively narrow belts the spiral strips are accord-
ing to this invention cut of the full width of the intended belt
The strip is then split into two layers and one layer say the grain split is
stretched straight down to a long table and held so either between iron guide
bars or by means of wood pegs The other (say the flesh) layer is then divided
longitudinally into two halves and these two halves are then stretched over the
grain split being fist turned end for end so that when they are placed over the
grain split they will tend to turn in the contrary duection to the latter. Both
these flesh strips are stretched with a tension approximately equal to that imposed
upon the wider grain split, and while they are so stretched that half of the
flesh split which has been on the inside of the spiral is nailed down in position
The other half of the flesh split 18 stretched still more however so that it becomes
from 2 to 10 per cent longer than the first half of the flesh split It is then
nailed in position and cross lines are scribed on the belt and on the table so as
to ensure that when the two layers of splits are subsequently cemented together
the upper splits may have the same tension put upon them by again bringing
the lines upon the strips and upon the table to coincide The amount of extra
tension imposed upon the outer half of the flesh strip 18 a matter for experience
but unless it is so stretched the belt will be found to constantly travel towards
one edge of the pulley It must be understood that both halves of the flesh split
have then curvatures in the same direction and that the only object of dividing
the flesh split longitudinally into two halves 18 to enable a little more tension
to be imposed upon that part of it which formed the outside of the spiral
After the two layers of the leather have been stretched down to the table and
marked as above described, one end of the upper layer is loosened from the
table and cement is applied to the two cut surfaces of the layers by a brush
taking care to apply the cement to short lengths at a time and beginning at the
end which 18 still nailed in place, the upper laver is then pressed down on the
lower laver and rubbed with a glass " slicker" till the cement has set; this
operation is repeated down the whole length of the belt but care 18 to be taken
that the strips forming the top layer are stretched as the work proceeds so that
the marks scnbed on them may coincide with the marks scibed on the table,
thus ensuing that the upper layer is cemented to the lower layer at the proper
tension
Instead of turning the flesh split end for end the same result may be obtained
by taking a flesh split which has been cut from a strip having a right hand
spiral and forming it into a belt with a grain split cut from a strip having a
left hand spiral a method which has the advantage that similar parts of the
hide are applied to each other Nanow belts such as one inch or one and a
half inches formed m the above way by dividing the strips into two splits or

page_text: layers and turning one split end for end before cementing the one split to the
other do not need to have the flesh split divided into two halves longitudinally.
Having now particularly described and ascertained the nature of my said
invention and in what mauner the same is to be performed I declare that what
I claim 18:-
1. A belt formed from a spally cut strip of leather divided into two layers
of approximately equal thickness, one layer being turned so that the curvatures
of the two layers may tend to neutralise one another
2. A belt formed from a spually cut strip of leather divided into two layers of
approximately equal thickness, one layer being divided longitudinally into two
parts of which that part which was on the outer side of the spiral has a tension
greater than the other and the various portions so aɩranged that then curvatures
tend to neutralise one another.
3* A belt formed from two layers each being approximately half of one of two
strips of leather cut spirally in opposite directions the layers being so arranged
that their curvatures tend to neutralise one anothei
4 A belt formed from two layers each being approximately half of one of
two strips of leather cut spirally in opposite directions one layer being divi led
longitudinally into two parts of which that part which was on the outer side of
the spiral has a tension greater than the other and the various portions being 80
arranged that their curvatures tend to neutralise one another
5 The manufacture of leather belts substantially as described.