g
the hook lever out of engagement with the pivot stud _2_, as shown in
the lower portion of the figure. It will be noted that the pivotal end
of the hook lever is made with a slot instead of a hole as is the
customary practice.

The advantage of being able to remove the hook switch bodily from the
other portions arises mainly in connection with the shipment or
transportation of instruments. The projecting hooks cause the
instruments to take up more room and thus make larger packing boxes
necessary than would otherwise be used. Moreover, in handling the
telephones in store houses or transporting them to the places where
they are to be used, the projecting hook switch is particularly liable
to become damaged. It is for convenience under such conditions that
the Dean hook switch is made so that the switch lever may be removed
bodily and placed, for instance, inside the telephone box for
transportation.

Desk-Stand Hooks. The problem of hook-switch design for portable
desk telephones, while presenting the same general characteristics,
differs in the details of construction on account of the necessarily
restricted space available for the switch contacts in the desk
telephone.

[Illustration: WEST OFFICE OF HOME TELEPHONE COMPANY, SAN FRANCISCO
Serving the General Western Business and Residence Districts.]

_Western Electric._ In Fig. 86 is shown an excellent example of
hook-switch design as applied to the requirements of the ordinary
portable desk set. This figure is a cross-sectional view of the
base and standard of a familiar type of desk telephone. The base
itself is of stamped metal construction, as indicated, and the
standard which supports the transmitter and the switch hook for the
receiver is composed of a black enameled or nickel-plated brass tube
_1_, attached to the base by a screw-threaded joint, as shown. The
switch lever _2_ is pivoted at _3_ in a brass plug _4_, closing the
upper end of the tube forming the standard. This brass plug supports
also the transmitter, which is not shown in this figure. Attached to
the plug _4_ by the screw _5_ is a heavy strip _6_, which reaches down
through the tube to the base plate of the standard and is held therein
by a screw _7_. The plug _4_, carrying with it the switch-hook lever
_2_ and the brass strip _6_, may be lifted bodily out of the standard
_1_ by taking out the screw _7_ which holds the strip _6_ in place, as
is clearly indicated. On the strip _6_ there is m