Year: 1888

page_text: Date of Application, 9th Apr., 1888
Complete Specification Left, 7th Jan., 1889
Complete Specification Accepted, 12th Feb., 1889
I, ALBERT FRANOIS WENGER, of Parker Street, Hanley, in the County of Stafford,
Color Manufacturer, do hereby declare the nature of this invention to be as
follows:-
My invention consists of an improved Color Mixer wherein the color is contained in
an open top vessel which is carried upon trunnions and has pear shaped Muller
revolving therein. This Muller grinds and mixes the material. The axle of this
Muller is diagonally inclined and passes thro' a frame which swivels upon trunnions.
I lift out the said Muller by means of a counterbalance upon frame carrying the axle.
This counterbalance I fix upon a turnover lever in such a manner that I can adjust its
distance from fulcrum or I can increase or decrease the angle of the lever in relation
to angle of inclined axle of the Muller. When the counterbalance is turned over in
same direction as the Muller its weight causes an increase of pressure of the Muller on
the bottom of the vessel greater or less according to the angle at which the lever is
placed and the weight of the counterbalance and its distance from centre of frame
trunnions. When I turnover counterbalance in direction opposite to that of the
Muller the Muller is balanced and by means of the trunnions on the said frame the
muller is easily lifted out of the mixing vessel. When Muller is thus lifted out the
vessel may then be turned over on its trunnions and emptied of its contents.
11909

page_text: Improvements in Color Mixers.
I, ALBERT FRANCIS WENGER of Parker Street, Hanley, in the county of Stafford,
Color Manufacturer, 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:-
My invention consists in an improved color mixer wherein the color is contained in
an open top vessel which is carried upon trunnions, and has pear shaped muller
revolving therein. This muller grinds and mixes the material. The axle of this
mullor is diagonally inclined and passes thro a frame which swivels upon trunnions.
I lift out the said muller by means of a counterbalance upon frame carrying the axle.
This counterbalance I fix upon a turnover lever in such a manner that I can adjust its
distance from fulcrum or I can increase or decrease the angle of the lever in relation
to angle of inclined axle of the muller. When the counterbalance is turned over in
same direction as the muller its weight causes an increase of pressure of the muller on
the bottom of the vessel greater or less according to the angle at which the lever is
placed and the weight of the counterbalance and its distance from centre of frame
trunnions. When I turnover counterbalance in direction opposite to that of the
muller, the muller is more or less balanced and by means of the trunnions on the said
frame the muller is easily lifted out of the mixing vessel. When muller is thus lifted
out the vessel may then be turned over on its trunnions and emptied of its contents.
Figures 1. 2. 3 and 4 on the accompanying drawing illustrate my said invention.
A is an open topped pan or vessel carried upon trunnions B and B and having therein
when required a steam space R as shewn, steam or hot water passing thro' the said
trunnions into the space R for warming the contents of the vessel A. In the vessel A
I revolve on the axle C a pear shaped muller D by means of bevel wheels E and E
which in turn I drive by pulleys F keyed on shaft T which passes thro' trunnion H or
by a winch handle upon shaft T or in any other suitable manner.
I carry the axle C
in a rocking frame G and inside the said frame GI also carry the said bevel wheels E
and B. I support the frame G on trunnions H H upon the side standards K K² of
the machine. Upon the trunnion H' I place a vibrating or turnover lever L having
thereon a counterbalance M. This counterbalance I secure with a set screw so that I
may fix it upon any portion of lever L. Figure 1 shews my improved apparatus in
working order. In this case the lever Lwith counterbalance M vibrating upon
trunnion H rests against a stop pin N bolted thro' the slot S in the frame G and exerts
pressure thro the frame G upon the muller D. The stop pin N is adjustable in the slot S.
By moving the pin N in the slot S I adjust the angle of the lèver L and correspond-
ingly vary the pressure exerted by the counterweight on the muller D. I attach to an
arm P projecting from frame G a scraper Q having slot holes to allow for proper adjust-
ment. The scraper Q clears away from the muller the material being mixed or
ground and prevents it from climbing up the spindle of the muller D. Between the two
standards K K' of the machine I fix a flat bar J thro' which I pass an adjustable set
pin V which serves as a rest or support for the vessel A when in working position.

page_text: Figure 2 shews the apparatus with the lever in position for lifting the muller. In
this instance the lever Lrests against a projection upon the frame G and counter-
balances tho muller and spindle to a greater or less degree.
Figure 3 shews the muller withdrawn and the vessel A turned over for emptying its
contents.
Figure 4 shews a plan of the apparatus when the pan is being emptied of its
contents.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be carried out, I declare that what I
claim is
The apparatus for mixing and grinding colors substantially as described and
illustrated, also the turnover lever and adjustable counterweight for the purpose
described.