Improvements in and relating to the Fastening of Pins or Dowels for Insulating Rollers.
Year: 1899

page_text: Date of Application, 4th Jan., 1899-Accepted, 1st Apr.,
1899
COMPLETE
SPECIFICATION.
Improvements in and relating to the Fastening of Pins or Dowels
for Insulating Rollers.
I, JOHANNES DETLEF HEINRICH GÖBEL, of 19, Kleine Vienlanderstrasse, Ham-
burg, in the Empire of Germany, Engineer, do hereby declare the nature of this
invention and in what manner the same is to he performed, to be particularly
described and ascertained in and by the following statement:-
-
The object of this invention is an improvement in the fixing of pins or dowels
for insulating rollers, the feature of which is that the fixing can be effected without
any soiling of the walls and with the certainty of there being no subsequent
loosening or coming out."
In the accompanying drawing:-
Fig. 1, is a side view of a pin or dowel with two insulator rollers according to
the present invention in side view.
Fig. 2, is a plan of the same, and
Fig. 3, a vertical section of Fig. 1.
The fixing apparatus consists in the first place, of two semi-circular pieces 1
and 2, which, for the purpose of securing a better hold, are furnished on the under
edge with various notches or indentations 14.
Un the opposite side they have a sharp edged projection 7 or additional piece
and are bored conically; this boring can be filled up by means of a cone 3, made of
sume soft elastic material.
The fixing of the rollers 4 and 5, is effected in a suitable manner to the bed
plate 6, which has a conical hole in the middle, and fits to the collar or projection
(additional piece) 7 of the two halves of the dowel.
For effecting the fixing of the apparatus the two halves are pushed through the
hole in the plate 6, which can easily be done, as the cone is not yet inserted.
The dowel thus formed of two parts is there upon introduced into the hole previously
formed in the wall and fixed by the driving in of the cone. The parts of the
dowel, as already mentioned, are forced apart by the conc, and thereby not only
is the dowel januned tightly into the hole formed in the wall, but also to the bed-
plate 6, and so as not to get loose again.
The number of the parts of which the dowel is formed, is as a matter of
course not limited to two, but according to circumstances three, four or several
may be used. The number has no bearing on the essential feature of the in-
vention.
Having now particularly described and ascertained the nature of my said. in-
vention and in what manner the same is to be performed, I declare that what I
claim is:
-
Improvements in the fixing of pins or dowels for insulator rollers, the distin-
guishing feature of which is that the actual pin or dowel consists of several pieces
held together by means of the bed-plate (6) and collar (7) thereon, and furnished
with notches or indentations on the side that is to be inserted in the wall, these

page_text: pieces being forced by means of a cone which is driven into a conical boring in
the centre of the same, in order by such driving apart to fix the pin or dowel
immovably in the wall as well as to the bed-plate.
Dated this 4th day of January 1899.
HUGHES & YOUNG,
55 and 56, Chancery Lane, London, W.C., Agents.