Apparatus for Mechanically Polishing, Scouring, and Grinding Metal and other Objects.
Year: 1893

page_text: Date of Application, 17th July, 1893
Complete Specification Left, 26th Feb., 1894-Accepted, 21st Apr., 1894
Apparatus for Mechanically Polishing, Scouring, and Grinding Metal
and other Objects.
I, ERNST HAMMESFAHR, of No. 7 Foche, Solingen, Prussia, in the Empire of
Germany, Manufacturer, do hereby declare the nature of this invention to be as
follows:
This invention relates to apparatus for mechanically polishing scouring and
grinding metal and other objects wherein the objects, such as knives, forks, blades &c.
are so arranged in groups or rows upon plates or drums that move in or over the
grinding medium that the objects dip into or are surrounded by such grinding
medium. The objects are secured in holders fixed to the drums or plates, and in
consequence of the rotation or other movement of these they are made to pass
through the medium.
The latter may be either pulverulent, granular, or in the form of a paste, and it
may either be stationary or it may also have motion imparted to it, by preference
in a direction the reverse of that of the said objects.
It may also be subject to gaseous or liquid pressure in order to prevent the
powder from flying about or to cause an energetic action thereof upon the
objects.
According to one arrangement of such apparatus, it consists of a box or case
more or less filled with pulverulent, granular, or pasty grinding or polishing
material, having an opening at top through which is introduced a disc having
holders to which the knives or other objects are attached, these being plunged into
the grinding material.
The disc has a stem or arm on its upper side to which a rectilinear or other to
and fro motion is imparted by any suitable known means. Or the disc, which may
either be circular or star shaped, may be slotted for the reception of the knife blades,
and be fixed to a central spindle, by the rotation of which the knives are made to.
travel round in circular paths in the grinding or polishing material in which they
are immersed. According to another modification the vertical spindle carries a
hollow cylindrical drum immersed in the grinding material, the knives &c. being
passed through slits in the cylindrical surface so as to project into the grinding
material. In this arrangement the casing containing the grinding material may
either be horizontal with the axis of the drum vertical, or the latter may be
arranged horizontally and the casing vertically, in which case the axis would be
passed through stuffing boxes on the closed ends of the casings.
In the last described arrangement the casing may have opposite inlet and outlet
passages through which fresh grinding material can be respectively introduced and
the used material removed from time to time.
Dated this 17th day of July 1893.
ABEL & IMRAY,
Agents for the Applicant.

page_text: Apparatus for Mechanically Polishing, Scouring, and Grinding Metal.
and other Objects.
I, ERNST HAMMESFAHR of No 7 Foche, Solingen, Prussia, in the Empire of
Germany, 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:
This invention relates to apparatus for mechanically polishing, scouring and
grinding metal and other objects wherein the objects, such as knives, forks, blades
&c., are so arranged in groups or rows upon plates or drums that move in or over
the grinding or polishing medium that the objects dip into or are surrounded by
such grinding or polishing medium. The objects are secured in slots or holders
fixed to the drums or plates, and in consequence of the rotation or other movement
of these they are made to pass through the medium.
The latter may be either pulverulent, granular, or in the form of a paste, and it
may either be stationary or it may also have motion imparted to it by preference
in a direction the reverse of that of the said objects.
It may also be subject to gaseous or liquid pressure in order to prevent the
powder from flying about or to cause an energetic action thereof upon the objects.
Figures 1 to 5 of the accompanying drawings shew by way of example some of
the various arrangements of apparatus that may be employed for carrying my
invention into practice. Figure 1 shews an arrangement in which the articles a to
be ground, scoured, or polished are inserted into slots or holes (6 Figure 2A) in a
disc d fixed to a stem c.
The objects a dip into the grinding material e with which the casing f is filled
to the required extent, and they are moved about in the said material either in a
rectilinear or curvilinear direction by means of the handle or stem c.
In the arrangement shewn in vertical section and sectional plan at Figure 2 the
slotted disc d which carries the objects a and which may also be of a star shape
as shewn at Figure 2A, is fixed to a shaft g which is rotated either by hand or by
other suitable means. In the modifications shewn at Figures 3 to 5 the objects a
are inserted into holes in a drum h which is fixed on an axis g that may either be
arranged vertically as at Figure 3 or horizontally, as at Figure 4, so that by its
rotation the drum together with the object a is carried round in the grinding
material e surrounding the drum.
In the arrangement at Figure 5 the casing i is provided with an inlet k and an
outlet through which the grinding material can be removed, and renewed from
time to time.
The arrangement of the objects upon a rotating disc as shewn in Figures 2
and 24, is advantageous in many cases because with it it is possible to arrange the
objects nearer to or farther from the axis g, and thus to vary the speed with which
they pass through the grinding or polishing material.
The casings f,i are fixed; they may however also receive a rotary motion. In
this case the object treated, or the discs, arms or drums carrying the same could
be kept stationary.
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 :-
Apparatus for mechanically polishing, scouring and grinding metallic or other
objects wherein a disc such as d, or drum such as h, provided with slots, holes or
holders for the insertion of the objects to be treated, is moved in a rectilinear,

page_text: curvilinear or circular path over, or in suitable grinding scouring or polishing-
material, which may be subject to pressure, so that the said objects carried by the
discs or drums are immersed and moved about in such material substantially as.
described.
Dated this 26th day of February 1894
ABEL & IMRAY,
Agents for the Applicaut..