Improvements in Bobbins with Detachable Disks for use in Weaving, Spinning, Knitting, and the like Machinery.
Year: 1898

page_text: Date of Application, 15th Apr., 1898-Accepted, 23rd July, 1898
COMPLETE SPECIFICATION.
Improvements in Bobbins with Detachable Disks for use in Weaving,
Spinning, Knitting, and the like Machinery.
I, FREDERICK WILLIAM GOLBY, of 36, Chancery Lane, in the County of Middlesex,
Patent Agent, do hereby declare the nature of this invention and in what manner
the same is to be performed, as communicated to me by Friedrich Ay, Tavern
Holder, of Wiesbaden, Germany, to be particularly described and ascertained in
and by the following statement:-
This invention relates to bobbins, for use in weaving, spinning, knitting and the
like machinery, of the kind in which two disks are connected to a tube-like nave,
in order to effect the exchange of defective parts, instead of replacing the whole
bobbin as heretofore. The object of this invention is to construct such bobbins in
such a manner as to facilitate the ready detachment of the disks, without the danger
attendant upon the loosening of the disks too soon. Such a bobbin is illustrated
in the annexed drawing, in which Fig. 1 is a side elevation, Fig. 2 is a front
elevation, Fig. 3 a longitudinal section, and Fig. 4 a section on the line IV-IV
of Fig. 3. Figs. 5 to 8 show details, Fig. 5 being a cross-section, Fig. 6 an elevation,
Fig. 7 a section on the line VII-VII of Fig. 8, while Fig. 8 is a section on the
line VIII-VIII of Fig. 7.
The tube-like nave a, Figs. 1 and 3 is made from wood or pasteboard, and the
disks are made from sheet metal. The disks 6 are provided with a central
boring b¹, Fig. 5, the diameter of which is equal to the outer diameter of the
tube like nave a. These disks are provided furthermore with radial channels b²,
see Figs. 1, 2, 3 and 5, communicating with the nave hole, Fig. 3, through the
borings a¹ of the tube like nave a. In composing the bobbin, one of the parallel
legs ee of a bow e² el e² is passed through one of these borings a¹ into one of the
channels 62 in order to prevent an axial displacement of the disks b. In the
arrangement shown by the annexed drawing there are provided for instance three
channels b' in each disk and according to this number of channels 62 the tube-like
nave a is provided with three borings a near each end, furthermore three
bows e el are necessary as shown in Fig. 4. In these bows e2 el e2, the cross
piece e, which is parallel with the axis of the tube-like nave a when the bobbin
is made up, is of such a shape, that only the middle part of it touches the inner
surface of the tube-like nave a, the ends of the cross-piece el however leave a
certain distance between themselves and this surface (see Figure 3) so as to engage
with one of the cylindrical pieces f to be inserted into the ends of the tube-like
nave a. For this reason the cylindrical pieces f are provided with three longi-
tudinal cavities f¹, Figs. 7 and 8, the bottom surface 2 of which is inclined in
such a manner that the distance between this surface and the axis of the bobbin
decreases in the direction towards the outer ends of the tube-like nave a, Fig. 3.
The cylindrical pieces f can be disconnected from the tube-like nave a by drawing
them outwardly by inserting a hook or the like into the axial boring ft. The
surfaces of the cavities f form a right angle with the axis of the bobbin and
thus serve as abutments when putting the cylindrical pieces f into the tube-like

page_text: nave a.
The bows e² et e² are made from elastic wire, and the cylindrical pieces f
are preferably made from wood.
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:
Bobbin, for use in weaving, spinning, knitting, and the like machinery, with
detachable disks b which are connected with the tube-like nave a by means of
U-shaped bows e² el e³, the legs e² of which pass through borings a¹ in the nave a
into one of the radial channels 62 of the disks b, these bows e ele being prevented
from moving inwardly by cylindrical pieces f so placed, that the outer ends of
the longitudinal piece e¹ of the bow enters into a wedge-like cavity f¹ in the
pieces f, and prevents the latter from moving outwardly, substantially as herein
set forth and illustrated in the accompanying drawings and for the purpose
specified.
T] 15.11. 1. of Al 1808
E. W. GOLBY,
36, Chancery Lane, London, W.C.