Improvements in or applicable to Apparatus for Working Butter and the like.
Year: 1890

page_text: Date of Application, 6th Mar., 1890
Complete Specification Left, 8th Dec., 1890-Accepted, 17th Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in or applicable to Apparatus for Working Butter
and the like.
I, THOMAS BRADFORD, of High Holborn, in the County of London, Dairy Engineer,
do hereby declare the nature of my said invention to be as follows:-
This invention relates to certain improvements in or applicable to butter workers,
or apparatus for working butter, lard, fat and the like.
The improvements have special reference to circular and other forms of butter
workers in which the butter or other substance is worked upon a rotating or recipro-
cating table supported by friction wheels or rollers. According to the present
improvements I connect such friction wheels or rollers with the driving gear of the
machine, in such a manner that they will wholly or in part drive the table, and will
thus serve the purpose of both supporting and driving the table. I also place one or
more of such friction rollers directly under the rollers which operate upon the sub-
stance under treatment, thereby relieving strain upon that part of the table where
the strain is greatest and most needing relief, and adding to the effective driving
power by increasing the frictional contact of the table with the supporting rollers.
By such means the table is supported and actuated at different points, and the driving
power is proportioned to the work required to be done, as the greater the bulk and
weight of butter to be treated upon the table the greater the pressure upon the
friction rollers or wheels, and consequently, the greater their effective frictional
power to drive the table.
I also propose to apply and use with such butter working apparatus correspondingly
modified forms of the improved helically wormed butter working rollers described in
the Specification accompanying my application for Letters Patent No. 20618 dated
December 23rd, 1889; shaping the roller according to the shape or formation of the
table with which it is intended to be used, and making it with a quick worm in order
to cause the grooves it makes in the butter when the machine is rotating or in
operation to radiate quickly to the lower level of the bed so that the butter milk or
water can quickly gravitate away.
Dated this 5th day of March 1800
DAY, DAVIES & HUNT,
321, High Holborn, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or applicable to Apparatus for Working Butter
and the like.
I, THOMAS BRADFORD, of High Holborn, in the County of London, Dairy Engineer,
do hereby declare the nature of the said invention and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention relates to certain improvements in or applicable to apparatus
employed for working butter, fard fat and the like.
The improvements have special reference to that class of such apparatus in which
the butter or other substance is worked by rollers upon a circular table to which
rotary motion is suitably imparted.

page_text: ассотран) img
awings
Fig. 1, represents a sectional elevation of a circular butter worker embracing the
present improvements.
Fig. 2, represents a partial end view illustrating the gearing represented in Fig. 1.
Snch apparatus is intended to be driven by power.
Fig. 3, represents a partial sectional elevation of a circular butter worker of
ordinary construction and of a size suitable for hand power, representing the applica-
tion thereto of the berein described improved butter working rollers, which are also
represented in Fig. 1, as applied to the apparatus therein represented.
Figs. 4 and 5 represent (on an enlarged scale) side and end elevations respectively
of the improved butter working roller.
According to the present improvements, I connect the friction wheels or rollers 6,
(upon which, in the larger sizes of such apparatus such as those intended to be driven by
power, the rotating table 7, has hitherto been simply supported) with the driving
gear 8, of the machine in such a manner as to cause such rollers to serve the twofold
purpose of supporting and driving the table, and place such frictionally driving
rollers 6, directly under the rollers 9, which operate upon the substance supported by
the table, thereby relieving strain upon those parts of the table where the strain is
greatest and most needing relief and adding to the effective driving power by
increasing the frictional contact of the table with the supporting and driving rollers.
By such improved arrangement and means the table is supported and actuated at
different points and the driving power is proportioned to the work required to be
done, as the greater the bulk and weight of butter to be treated upon the table, the
greater the pressure upon the frictional driving rollers and consequently the greater
their effective frictional power to drive the table.
The rollers 6, and gearing 8, 8* are keyed on shafts 10, supported by the side
frames 11, and by bearings 12, supported by a cross girder 13. The table 7, is pro-
vided with an under circular bearing plate 14, which rests on the rollers 6, and such
plate may be formed with a circular toothed rim 15, adapted to engage with a toothed
wheel 16, keyed on one of the shafts 10, or with like wheels keyed on both of such shafts.
17, represents the driving shaft on which are keyed on the one side of the
apparatus a driving pinion 18, driving the gear wheel 8, and on the other side of
the apparatus a geared wheel 19, vide Fig. 2, which gears with a like sized wheel 19*,
on a stud 20, supported by the adjacent side frame 11, of the apparatus, the wheel 19*,
being made fast to a pinion 18×, which drives the gear wheel 8*. 21, 22 represent
fast and loose pulleys on the shaft 17.
I also apply to and use in connection with such butter working apparatus corre-
spondingly modified forms of the improved helically-wormed or inclined butter working
rollers, described in the Specification filed in pursuance of my application for Letters
Patent, No. 20,618, dated 23 Dec. 1889, tapering or shaping such rollers, 9, according
to the inclination or formation of the tables 7, with which they are respectively
intended to be used, and making the projecting flutes 24, thereof with a very much
quicker spiral inclination, preferably at about that represented on the accompanying
drawings. Such improved formation of the roller is effective in causing the butter to
be worked to much better advantage than when worked with the ordinary fluted
rollers in which there is no such angularity of placement of the projecting flutes,
and when the machine is rotating or in operation causes the formation of grooves
which radiate quickly to the lowest level of the table so that the expressed butter-milk
or water can quickly gravitate away.
The rollers 9, are driven from the gearing 8, 8×, by connecting gearing 23, or may
be otherwise driven in any suitable manner.
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 :
1. The herein before described arrangement for and means of supporting and
driving rotary butter working tables.

page_text: rollers.
2. The hereinbefore described improved spirally inclined butter working
Dated this 6th day of December 1890.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C., Agents for the Applicant.