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Патент USA US2405730

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Aug. 13; 1%.
Filed Sept.v 27, 1944
. amwrson
Patented Aug. 13, 1946
‘ 2,405,730
William R. Bankson, Pittsburgh, Pa.
Application September 27, 1944, Serial No. 556,042
1 Claim. (01. 232-47)
This invention relates to an improved mail box
somewhat of the type disclosed in my Patent
numbered 1,777,740, and issued October 7, 1930.
Important objects and advantages of the pres
able locking element for securing the receptacle
ent invention are to provide a mail box of the Cl
against entrance thereto by unauthorized persons.
A mail chute 8, extending at an angle from the
vertical, is mounted and ?xed in position in the
chute casing 2 by means of supporting brackets
character described, which is automatically oper
9 and It, or in any other suitable manner. The
able to uniformly stack letter mail with the ad
mail chute has an open lower end that is dis
dressed side thereof generally turned in the same
posed against the lower end of the rear wall of
direction, and under such conditions greatly
facilitate and expedite the handling, sorting and 10 the chute casing. The upper end of the mail
chute is disposed adjacent to the front wall of
postal cancellation of letter mail, and which em
chute casing and inclines at an angle from
bodies a chute entrance door constructed, posi
the vertical and has its top opening ll disposed
tioned, and operated in the manner identical to
directly rearward of the front opening l2, which
the conventional type of entrance door in gen
is provided at the upper end of the front
eral use on United States letter mail boxes.
15 wall of the chute casing.
With the foregoing and other objects in view
A chute entrance door I3 is hingedly con
which will appear as the description proceeds,
at its lower end to the chute casing 2 by
the invention resides in the novel construction,
means of the pivoting lugs I4v and I5, respectively
combination and arrangement of parts herein
speci?cally described and illustrated in the ac 20 carried by the chute door and the chute casing,
companying drawing, but it is to be understood
that the latter is merely illustrative of an em
bodiment of the invention, and that the actual
needs of practice and manufacture may require
certain mechanical variations from the embodi
connected by the pivoting pins It.
The chute
door is shifted or swung upwardly to the ver
tical- closed position to thereby close the casing
front opening 12 and further to simultaneously
close the angularly disposed opening II at the
upper end of the chute 8. When in the open
ment shown. It is, therefore, not intended to
position the chute door extends horizontally out
limit the invention to the disclosure thereof here
ward, as shown in Figure 1. The hinged connec
in illustrated, but rather to de?ne such limita
tion, position, and operation of the chute door
tions to the scope of the claim hereunto ap
30 is identical to the conventional letter mail in
let door of standard letter United States mail
In the drawing wherein like numerals of refer
boxes in common use.
' ence designate corresponding parts throughout
the several views:
Figure 1 is a side elevational view of the mail
box, partly in cross section, with the doors in the
open position, and with the operating mechanism
in the letter stacking position.
Theside walls of the chute casing 2 are spaced
from the side walls of the chute 8, to provide
clearance for a pair of similar L-shaped operat
ing levers H, which are positioned at respective
sides of the chute and‘ each of which comprises
a long arm l8 and a short arm 19. The operat
Figure 2 is a front elevational view of the mail
ing levers are rigidly ?xed to respective ends of a
box, partly in cross section, with the chute en
trance door removed, and with the letter stack 40 horizontally disposed pivoting shaft 20 at the
angle juncture of the associated arms. The shaft
ing mechanism in the operative position.
Figure 3 is a transverse cross sectional view of
the chute entrance door.
Referring in detail to the drawing I denotes
an oblong, rectangularly-shaped mail receptacle,
20 is pivotally mounted, at the front of the chute,
in a pair of bearing lugs 2| carried by the latter.
The long arms I 8, of the operating levers H, de
pend into the mail receptacle I, and carry a hor
izontally disposed closure block 22 therebetween.
having a, chute casing 2 mounted on the top of the
The latter is ?xed to said long arms and serves
forward end thereof. The mail receptacle is pro
to close the open lower end of the chute 8 when
vided with a side door 3 for allowing the removal
the letter stacking mechanism is in the operative
of letter mail from the receptacle. The side door
constitutes an entire side wall of the receptacle 50 position, as shown in Figures 1 and 2. Owing to
the ?xed connections of the pivoting shaft 20 and
rearward of the chute casing, and is hinged to
of the closure block 22 with the operating levers
the receptacle bottom 4. The receptacle top 5
11, the latter will shift in unison as an integral
carries a laterally disposed staple 6 for engage
structure during the operation of the stacking
ment in a registering slot 1 at the free side edge
of the side door and for the reception of a suit 55 mechanismto be described.
A stacking plate 23 is mounted between the
shown in dash lines in Figure l. A stop leg 25 is
?xed to and depends from the closure block 22.
The lower ‘free end of the stop} leg is positioned
to engage the forward face of the stacking plate
previously inserted letter mail. The letter mail
can only be inserted vertically edgewise into the
chute through the inclined upper chute opening
H, and remains in the chute until the door I3
has shifted to the closed position. When the
door [3 is released, the suspension and weight of
the stacking plate 23 will draw the said door to
the closed position, and the closure block 22 will
lower ends of the long arms 18, and is shiftably
joined with the latter by the pivotal connection
24. The latter are above the center of the stack
ing plate, so that said stacking plate will be
overbalanced to normally maintain a perpendic
ular edgewise suspension by gravity action, as
shift from beneath the lower end of the chute
10 and allow the inserted letter mail to drop into
below the connections‘ 24 so as to limit the an
gular movement of said stacking plate during the
letter stacking operation, as shown in Figure 1.
the receptacle I between the retracted stacking
plate 23 and letter support 3| on the slide mem
ber 30.
The width of the improved mail box allows the
The chute door l3 carries a pair of ?xed lever ' passage of letter mail 32 into the chute 8 and
lugs 25, which are disposed adjacent to respec 15
tive pivoting lugs M of said door,‘ and project
rearwardly into the chute, casing 2.
The short arms 19, of the operatingv levers All,‘
extend rearwardly in the chute casing 2, and the
free end of each of said short arms is pivotally
connected, as at 21, to the lower end of a con
necting bar 28. The upper ends of the connect
ing bars are pivotally connected, as at 29, to re
spective door lever lugs 26. Such operative con
nection of the chute door 13 with the operat
ing levers ll will actuate the latter to shift the
stacking plate 23 rearwardly to the stacking posi
receptacle I in the vertical edgewise position only,
and in consequence all letter mail will be stacked
on edge and at a rearward inclination against the
letter support 3|, as shown in Figure 1.
Due to the inclination of the slide member 30,
the stacked letter mail together with the support
31 may readily be shifted rearward on said slide
member, by the operation of the stacking mecha
nism, to accommodate subsequent letter mail in
The stacked letter mail is, of course removed
from the receptacle l by an authorized mailman
through the side door 3. The mailman manu
13 is pulled manually to
ally returns the letter ‘support 3| to its forward
weight of the stacking
on the slide member 30 each time the
the open door I3 is re 30 mail is removed from the receptacle. »
drawn automatically to
The present invention provides a most ei?cient
its closed position by gravity action.
device of its kind, which may be economically
A slide member 30 is mounted on the bottom
manufactured and maintained, and which may be
tion each time said door
the open position. The
plate is such that when
leased, the latter will be
4 in the receptacle l, and inclines upwardly from
successfully and conveniently employed for the
its rearward to its forward end. The slide mem 35 purpose and in the manner herein set forth.
ber is approximately equal to said bottom in
What I claim is:
' length and width. Shiftably or slidably positioned
In a letter mail box of the class described, the
on the slide member is a substantially L-shaped
combination with a letter chute and with operat
letter support 3!. The latter is of a width ap
ing levers pivotally supported by the chute and
proximating the width of the slide member, and 40 carrying a ?xed closure block and a pivotally
the front face thereof is disposed ‘at an angle
connected stacking plate, of a stop leg ?xed to and
from the vertical to provide an inclined rest for
depending from the closure block, the lower free
the mail letters 32 when stacked thereagainst, on
end of said leg being positioned to engage the
edge, as shown in Figure 1.
stacking plate below the pivotal connection of
In practice the improved mail box is operated
the latter to limit the angular movement of the
by pulling the chute entrance door l3 to the open
stacking block during the letter stacking opera
position, whereby the lower end of the chute 8
is closed by the closure block 22, and the stack
ing plate 23 is shifted rearwardly to stack the
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