IMPROVEMENTS IN MACHINERY FOR SPINNING AND DOUBLING FIBROUS MATERIALS
Year: 1868

page_text: LETTERS PATENT to Isaac Holt, William Holt, James Holt, and
Joseph Maude, of Bolton, in the County of Lancaster, for the
Invention of "IMPROVEMENTS IN MACHINERY FOR SPINNING AND DOUBLING
FIBROUS MATERIALS."
Scaled the 30th April 1869, and dated the 4th November 1868.
PROVISIONAL SPECIFICATION left by the said Isaac Holt, William
Holt, James Holt, and Joseph Maude at the Office of the Com-
missioners of Patents, with their Petition, on the 4th November
1868.
We, ISAAC HOLT, WILLIAM HOLT, JAMES HOLT, and JOSEPH MAUDE,
of Bolton, in the County of Lancaster, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN MACHINERY FOR SPINNING AND
DOUBLING FIBROUS MATERIALS," to be as follows:-
This Invention relates to doubling and throstle frames, mules, and
similar machinery, and consists of an improved arrangement of spindle
and an improved mode of holding the tubes which pass over the spindles
to the lifting rail.."

page_text: Instead of supporting the spindles in footsteps in the cross or bottom
rail and employing warves for driving them we form an improved
spindle by holding a small pulley or roller to the bottom of the spindle
by a steady pin and screw or screws with one or more nuts, or by one
or more set screws, or by one or more pins or keys. The bottom surface
of the small pulley or roller is in contact with the periphery of a larger
pulley or roller, to which revolving motion is imparted, the latter pulley
supporting the small pulley and spindle, and turning with the least
possible amount of power.
Instead of fixing the tubes which pass over the spindles to the lifting
rail by screws and nuts we fix each tube to a plate bent at one or both
ends at right angles, which plate rests on the lifting rail and the
bent end or ends prevent the plate and tube from turning with the
spindle.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Isaac Holt, William Holt, James Holt, and
Joseph Maude in the Great Seal Patent Office on the 4th May
1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, ISAAC
HOLT, WILLIAM HOLT, JAMES HOLT, and JOSEPH MAUDE, of Bolton, in
the County of Lancaster, send greeting.
с
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of November, in the
year of our Lord One thousand eight hundred and sixty-eight, in the
thirty-first year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto us, the said Isaac Holt, William Holt,
James Holt, and Joseph Maude, Her special licence that we, the said
Isaac Holt, William Holt, James Holt, and Joseph Maude, our exe-
cutors, administrators, and assigns, or such others as we, the said Isaac
Holt, William Holt, James Holt, and Joseph Maude, our executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN

page_text: MACHINERY FOR SPINNING AND DOUBLING FIBROUS MATERIALS," upon the con-
dition (amongst others) that we, the said Isaac Holt, William Holt,
James Holt, and Joseph Maude, our executors or administrators, by an
instrument in writing under our, or their, or one of their lands and
scals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Scal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that we, the said Isaac Holt, William Holt, James
Holt, and Joseph Maude, do hereby declare the nature of our said
Invention, and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement:-
This Invention relates to doubling and throstle frames, mules, and
other similar machinery in which spindles are used, and consists in
dispensing with the ordinary drum bands and warves, and driving the
spindles of such machinery in a novel manner by friction wheels, the
periphery of the driving wheels of such frictional gear being parallel
with the axis of the horizontal driving shaft, and a weighted boss being
secured to the lower extremity of the spindles covered with leather or
other suitable material cupped to the proper shape, so as to present a.
narrow or feather edge to rest upon the periphery of the driving wheel.
This arrangement of driving the spindles enables cach individual
spindle to be stopped without being taken hold of by the hand of
the attendant, thus leaving both hands at liberty for piecing or dofling.
This Invention further relates to a novel and simple method of holding
the tubes (through which the spindles pass and upon which the bobbins
are placed) upon the ordinary lifting rail, so that the height of the
bobbins may be regulated without increasing the drag.
Instead of affixing such tubes to the lifting rail by screws and nuts
we fix each tube to a metallic plate bent down at one or both ends at
right angles, so as to grasp the lifting rail, and thereby prevent the plate
and tube from turning with the spindle.
In order that this our said Invention may be the more readily scen
and understood we have hereunto annexed a Drawing illustrative of our
improvements, similar letters being used to denote similar parts in all
the views..

page_text: Fig. 1 is a front, and Fig. 2 a side view, of a portion of a throstle or
doubling frame, shewing our improved system of mounting and driving
spindles, drawn partly in section to a scale of about quarter size.
Fig. 3 is a front sectional view, and Fig. 4 a side view, partly in
section, of our improved method of holding the spindle tubes upon the
lifting rail.
Fig. 5 is a sectional full-size view of the lower end of one of the
spindles illustrated in Figs. 1 and 2, shewing the periphery of the driving
wheel in frictional contact with the weighted boss affixed at the lower
end of cach spindle.
A represents the frame side; B is the bottom, and C the top rail, in
which the spindles D are mounted; these spindles have weighted
bosses E covered on the under side with a washer F of leather or other
suitable material and secured altogether to the spindle by lock nuts,
cotters, or other suitable fasteners, such washers or under coverings being
shaped, as illustrated more plainly by Fig. 5, by cutting away the central
portion of the under surface of the boss, so as to present a narrow or
feather edge to the driving wheels G, upon which such bosses rest, by.
which means the same speed is maintained in all the spindles whether
the driving wheel appertaining to each spindle is nearer to or farther
from the axis of the spindle than any of the others. The driving
wheels G are secured by keys, pins, or set screws upon the driving
shaft H, to which revolving motion is communicated either by strap or
toothed gearing. It will be apparent that cach spindle. requires an
independant driving wheel, having its periphery parallel with the axis of
the driving shaft in contradistinction to being bevilled or made conical.
I is a collar or boss formed upon each spindle, by means of which the
attendant, by placing the knee beneath such collar or boss, may raise
the spindle off the driving wheel, and thus stop it for doffing or piecing,
leaving both hands at liberty for the purpose. J, J, J, J, are the metallic
plates, into which the tubes K are rivited or screwed, each of which plates
has an overhanging edge L which grasps the lifting rail M, and thus
prevents the tube K from turning with the spindles D, instead of having-
such tubes secured to the lifting rail by screws and nuts. This method
of holding the tubes K enables each bobbin to be regulated in height
by placing a packing or washer under the plate J, between it and. the.
lifting rail, which is thus accomplished without increasing the drag..

page_text: It will be evident that by this arrangement of driving the spindles
the weight of the bosses will keep the spindles in. frictional contact with
the driving wheels, and that the spindles rest upon the driving wheels
altogether, and not partly upon collars or necks formed on the spindles,
and partly upon the driving wheels, and that as the narrow or feather
edge of the leather or other washer only touches the periphery of the
driving wheel sufficient to be turned by it the friction and power to
work the spindles is reduced to the minimum.
Our improvements can be applied in combination or separately, and
although they have been described more particularly with reference
to throstle and doubling frames, they are equally applicable for mules,
jack frames, slubbing or roving frames.
By our method of driving spindles it is practicable to place more
spindles in a frame than when driving by bands, thus économising space,
and we also find that more regular work is turned off a machine having
our improvements applied, and we consider it also a great advantage
and saving to dispense with footsteps and the necessary lubricating
matter which must be used when spindles revolve in footsteps and are
worked by toothed gearing.
Having thus particularly described and ascertained the nature of this
our said Invention, together with the best means with which we are
acquainted for carrying the same into practical effect, we wish it to
be distinctly understood that we do not confine ourselves to the precise
details, relative proportions, or dimensions of the several parts or portions
of the mechanism illustrated in the accompanying Drawing, and hercin-
before described, as the same may be considerably varied without
departing from the Invention; but what we do claim is -
1st. Mounting spindles with weighted bosses having their under
surfaces shaped, as described, to rest upon driving wheels having
peripheries parallel with the axis of the driving shaft, such spindles
being driven by the frictional contact of such driving wheels and
bosses, as herein-before described and illustrated in the accompanying
Drawing.
2nd. The method of holding the bobbin tubes upon the lifting rail, by
which facility is afforded for adjusting the height of the bobbins without
increasing the drag, as herein-before described and illustrated in the
accompanying Drawing.

page_text: 3rd. The application of our improvements either in combination or
separately as described.
In witness whereof, we, the said Isaac Holt, William Holt, James
Holt, and Joseph Maude, have hereunto set our hands and affixed
our seals, this Third day of May, in the year of our Lord One
thousand eight hundred and sixty-nine.
ISAAC
(L.S.) HOLT.
WILLIAM (L.S.) HOLT.
JAMES
(L.S.) HOLT.
JOSEPH
(L.S.) MAUDE.