Improvements in Tools for use in Mounting or Dismounting the Parts of Centrifugal Apparatus.
Year: 1899

page_text: Date of Application, 20th Feb., 1899-Accepted, 8th Apr., 1899
CUALFLUTE SPECIFICATION.
Improvements in Tools for use in Mounting or Dismounting the Parts
of Centrifugal Apparatus.
I, ERIK GUSTAF NICOLAUS SALENIUS, of Stora Kraftriket, Albano, in the King-
dom of Sweden, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement :-
This invention relates to a tool by means of which the axially detachable parts
of the drum or bowl of a centrifugal apparatus can be readily put together or
detached from each other.
Figure 1 illustrates the mode of detaching the upper part of the drum from the
lower.
Figure 2 illustrates the method removing the inset from the drum.
Figure 3 illustrates the mode of forcing down the inset into the drum and,
Figures 4 and 5 are front and side elevation respectively of the tool complete.
It is composed of a screw a provided with an handle and a foot-piece d, a nut
in the shape of a cross-head located on the screw, and long hooks c, c jointed to
the cross head. The cross-head is bent downwards at the ends and, like the hooks,
is provided with holes for the insertion of pins c¹ by means of which the hooks
can be rigidly secured to the cross-head. The foot-piece d is provided at the
sides with lugs f from which depend hooks g, which are suitably united by a cross-
shaft Figure 5, or the said lugs themselves may form hooks on which other hooks
may, alternatively, be suspended, as shown on the drawings. When the hooks c
are released, ie when the pins c¹ are pulled out, the hooks can be employed as a
pair of tongs, whereas, when they are secured, they form feet or legs, so to speak,
of the tool.
In Figure 1 is shown the mode of detaching the upper part of the drum or
bowl of a centrifugal apparatus from the lower one. To the latter h belong the
parts h1, h2, h3, of which he is slightly tapering toward the top. The upper part k
is forced down with its neck-like portion on to the part 2. In order to detach
the parts the hooks are applied so as to grasp in under the part k, and the screw a
is screwed down its foot-piece & bearing against the part h³, and as a result the
part is pulled up from the part h².
In Figure 2 is shown the mode of removing a system of plates p¹, a so-called
inset, from the drum h. The said inset is, provided with ribs having holes into
which the hooks g are inserted. The tool is placed with the hooks c resting on the
upper edge of the drum, in the packing-ring groove h of which the hooks enter by
means of their bottom lugs h5. The inset can now be pulled up by means of the
screw a.
In Figure 3 the mode of forcing down the inset in the drum is shown. The
said inset is composed of plates superposed on one another, and over said plates
is placed a cover m. The hooks c are brought to grasp in under a flange p at the
upper end of the frame or standard supporting the drum, and by means of the
screw a pressure is applied on the cover m, the inset being consequently de-

page_text: pressed and the plates forced together so that the cover m can be screwed down
on the top of the inset by the aid of a ring 2, Figure 1.
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:
A tool for mounting and dismounting the axially detachable parts of centrifugal
drums or bowls, consisting of two long hooks (c, c) jointed to the crosshead-
shaped nut (b) of a screw (a) and which when fixed in position. by means of
pins (c, c) inserted through them and the downwardly-bent ends of the aforesaid
crosshead, form feet or legs, so to speak, for the tool, but, when released, are
adapted to be employed as a pair of tongs the said screw being provided with a
bottom-piece (d) with (detachable) side-hooks (9, 9), all for the purpose of using
the screw and its foot-piece for compression, in which case the hooks are
employed as a pair of tongs, or using the screw and its hooks (g, g) for pulling
apart the parts of the drum or bowl, while employing the hooks (c, c) as feet or
legs.
D
1
1
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.