Improvements in Pneumatic Despatch Terminals.
Year: 1899

page_text: Date of Application, 26th July, 1899-Accepted, 2nd Sept., 1899
COMPLETE SPECIFICATION.
Improvements in Pneumatic Despatch Terminals.
We, LAMSON PNEUMATIC TUBE COMPANY, LIMITED, and ERBINE CURTIS
PHILLIPS, Engineer, both of 20, Cheapside, in the City of London, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:--
The object of this invention is to improve the construction of pneumatic
despatch terminals.
The terminal will be described when an exhaust in front of the carrier is used
and such carrier is propelled by the ordinary air pressure behind it although it
will be obvious that a direct pressure above atmospheric may be employed by
suitably modifying the apparatus.
In the accompanying drawings-
Fig. 1, represents a sub-station terminal partly in section;
Fig. 2, is a plan view on the line 1, 1; and
Fig. 3, is a diagrammatic view of a central and single sub-station.
The sub-station terminals are made in two parts A and B suitably curved and
provided with flanges CC by which they may be secured together at the desired
angle. One part is connected to the incoming pipe D from the central station
the other part carries the outgoing pipe E which either goes direct to the central
station or connects with the ingoing pipe thereto. The outlet for the carrier at
the sub-station is closed by a pivotted door or valve F seating on an externally
surrounding rubber ring or like packing G and normally held closed by a
spring H but capable of being forced open by the carrier. The inlet for the
carrier is closed by a like door or valve I provided with a similar externally sur-
rounding packing and spring, In both cases the arrangement is such that there
is no wear on the packing due to the passage of the carrier. The flow of air or
exhaust is from the central station to and through both parts A B of the terminal
and back to the central station as indicated by arrows and as will be clearly
understood by reference to Fig. 3, in which J is the receiving terminal of a central
station from which the air is exhausted through K, the carriers to be despatched
to sub-station L being placed in tube M, the terminal at sub-station L being
of the form previously described as is also the case when more than one sub-
station is employed.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that
what we claim is:-
1. In pneumatic despatch systems a terminal made in two parts adapted to be
set at the desired angle to each other one part of such terminal being attached
to the incoming pipe for the station and the other carrying the outgoing pipe
and automatically closing outlet and inlet valves, as described.
2. In pneumatic despatch systems a terminal made in two parts adapted to be
set at the desired angle to each other one part of such terminal being attached to

page_text: the incoming pipe for the station and the other carrying the outgoing pipe and
automatically closing outlet and inlet valves, seating on packings so placed as
to be free from contact with the travelling carrier, as described.
Dated the 26th day of July 1899.
PHILIP M. JUSTICE,
55 & Chancery Lane, London,
Chartered Patent Agent for the Applicants.