Pneumatic Conveyer. Page: 3 of 4
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UNITED STATES PATENT OFFICE.
WILLIAM E. VERNON, OF SIPE SPRINGS, ASSIGNOR TO HIMSELF, AND GEORGE
VERNON, JOHN N. FARMER, AND JOSEPH E. MURPHY, OF COMANCHE,
TEXAS.
PNEUMATIC CONVEYER.
SPECIFICATION forming part of Letters Patent No. 489,348, dated January 3, 1893.
Application filed May 4, 1891, SerialNo. 391,451. (No model.)To all whom it may concern:
Be it known that I, -WILLIAM E. VERNON,
of Sipe Springs, in the county of Comanche
and State of Texas, have invented a new and
5 Improved Pneumatic Conveyer, of which the
following is a full, clear, and exact descrip-
tion.
The object of the invention is to provide
new and useful improvements for insuring
to rapid and convenient traveling, transporta-
tion of mails, packages, freight, &c.
The invention consists of certain parts and
details and combinations of the same, as will
be hereinafter described and then pointed out
15 in the claims.
Reference is to be had to the accompanying
drawings forming a part of this specification,
in which similar letters of reference indicate
corresponding parts in all the figures.
7o Figure 1 is a side elevation of theimprove-
ment with parts in section; Fig. 2 is a trans-
verse section of the same; Fig. 3 is an en-
larged sectional side elevation of one end of
the pusher; Fig. 4 is a cross section of a modi-
25 fled form of the pneumatic tube. Fig. 5 is a
detail view showing the tube and its valve, in
the plunger. Fig. 6 is a plan view of the track
tubes, the pneumatic tube and the plunger,
the arms of the plunger being in section; and
30 Fig. 7 is a similar view showing the plunger
in a reverse position.
The car A is provided on its under side with
hangers B, supporting cylindrically-shaped
runners C fitting into tubes D arranged par-
35 allel and forming the track of the transporta-
tion or conveying mechanism. The brackets
B pass through slots E formed in the top of
the tubes D, the said slots being ordinarily
closed by flaps F made of a suitable material
40 and arranged on the outside, as shown in Figs.
1 and 2. The brackets B in their forward
movement push the flaps F aside for the time
being, the flaps again closing the slots E after
the brackets have passed. The car A is adapt-
45 ed to be engaged at its rear end at or near the
middle by one end of a pusher HI provided
with downwardly-extending arms H' carrying
a plunger I mounted to slide in a tube J ar-
ranged between the track tubes D. The tube
50 J is connected at one end with a suitable aircompressor, so that air is forced into the tube
against the plunger I, so as to propel the same
forward. The plunger I is preferably made
in jointed sections to readily follow the curves
in the tube J. As the plunger I carries the 55
pusher H engaging the car A, the latter is
propelled forward with the said pusher and
the plunger I. The arms H' of the pusher It
pass through a slot J' in the top of the tube
J, the said slot being ordinarily closed by a 60
valve K of flexible material secured on the
inside of the tube by one longitudinal edge
and extending over the slot of the tube as
shown most clearly in Fig. 4. The arms II'
when moving forward push the valve K tem- 65
porarily to one side, said valve again closing
the slot J', as soon as the arms II' have passed.
In order to insure a tight fitting of the plun-
ger I in the tube J, the rear end of the said
plunger I is provided with packing I', as 70
plainly illustrated in Fig. 3. Through the
center of the plunger I extends a tube L reach-
ing to the front end of the said plunger, the
said tube being adapted to be opened and
closed by a valve N, under the control of the 75
operator having charge of the car. When the
valve N is opened compressed air from the
rear of the plunger I can be admitted to the
front of the latter, so as to propel a plunger I
on the next car ahead, and to admit of the 80
first car being held up or stopped.
On the front projecting end of the tube L
is held a brush O connected with a pipe P
leading to an oil supply (not shown) so that
oil is passed to the said brush O, and distrib- 85
uted by the latter in the tube J to keep the
said tube and the plunger I lubricated. A
similar lubricating device may be connected
with each runner C to reduce friction to a
minimum. As the tube J may be connected 90
only at one end with an air supply, then a re-
turn movement of the car A can be had by
an additional pipe Q extending alongside of
the tube J, and connected with the latter at
the end having no station as shown in Figs. 6 95
and 7, the pipes J and Q being provided with
valves a b respectively as also shown in said
figures. The pusher H as well as the plunger
I, are then reversed at the end of the trip, the
valve a in pipe J is then closed and valve b ioo
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Vernon, William E. Pneumatic Conveyer., patent, January 3, 1893; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth173281/m1/3/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.