Page 61 - Wire Rope News & Sling Technology - April 2019

INVENTOR’S CORNER
displaced turns 33 of wire rope 3, which typically will be the
so-called safety turns discussed above, meaning that these
turns of wire rope 3 will not be engaged during regular opera-
tions, but serve as a backup in case of failure. It can also be
seen in figure 6 that the pocket 5 is provided as a reinforced
part 53 of the first winch drum 11 which is connected to the
winch drum 11 by means of welding and press-fitting.
Figure 9 shows a winch 10 according to the second aspect
of the present disclosure. The winch 10 comprises a housing
4 covering the ends of the winch drum 11 in the figure. The

Figure 7: Another side view of winch drum.
of a pocket connected to the first winch drum 11 and with
its opening provided as a slot 51, as best seen in figure 6, in
the outer surface 111 of the winch drum 11. The pocket 5
is adapted to accommodate a plurality of radially displaced
turns 33 of wire rope 3, as can best be seen in figure 6. Fig-
ure 7 is a side view of the winch drum device 1.
Figure 10: Winch drum in a second position of use.

winch 10 runs four parallel wire ropes 3, 3’, 3’’, 3’’’ connected
to a first winch drum 11 of a winch drum device 1 according
to the present disclosure. The first winch drum 11 is pro-
vided with four wire rope storage means 5, not visible in this
figure, one for each wire rope 3, 3’, 3’’, 3’’’. The winch 10 and
the winch drum device 1 are shown in a first position of use
P1, wherein the first winch drum 11 is adapted to accom-
modate single layers of the wire ropes 3, 3’, 3’’, 3’’’, as it will
Figure 8: Cross sectional view of the winch drum. typically be used in hoisting of drilling equipment and pipes
on a rig or on a vessel. The first winch drum 11 is constituted
Figure 8 is a cross-section as seen through the line C-C of by a removable shell 13.
figure 7, whereas figure 6 shows an enlarged view of detail In figure 10, the winch housing 4 has been removed for the
D from figure 8, including the pocket 5 and the radially dis- overview. Further, the removable shell 13 has been removed
placed turns 33 of wire 3 stored therein. In the shown embodi- in order to reveal a second winch drum 15 with a smaller
ment, the pocket 5 is adapted to accommodate four radially diameter than the first winch drum 11. This corresponds to
a second position P2 of use for the winch drum device 1.
In this second position of use P2 the winch drum device is
adapted to accommodate a plurality of layers of not shown
wire rope, whereby the winch 10 may also be used in opera-
tions requiring hoisting of loads over large heights, such as
in deep water applications.
Adjustable length cable
Pat. 10,190,334 U.S. class E05B 65/10 Int. class E05B 17/00
Inventor: Matthew S. Graham, Noblesville, IN., Justin
Wenger, Carmel, IN., Michael D. Coleman, Noblesville, IN.,
Yong Kwan Lacy, Carmel, IN.
Assignee: Schlage Lock Company LLC., Carmel, IN.
This patent presents an adjustable length cable system
that can be used in association with transmission of an ax-
ial pulling force. The cable system, which can be concealed
within and/or behind a structure such as, for example, with-
in an interior region of an entryway device, can accommo-
date adjustments in the axial lengths of a core wire and a
conduit system of the cable system. The core wire can extend
Figure 9: Second perspective view of winch drum. continued on next page

Wire Rope News & Sling Technology April 2019 61