Newsgroup: it.hobby.fai-da-te
Titolo: un*invenzione del 1918 di un bisnonno di mia madre

 12:13
 
 Ho trovato un brevetto USA del 1918 di un'invenzione di
 un bisnonno di mia madre, si tratta di un cannone ad aria
 compressa... che faccio, a qualcuno interessa, posto
 i link a google patents e al pdf?... O lascio perdere?
 Ci sono i disegni e gli scritti originali dell'inventore
 (inventava varie cose, questa fu una)
 
 
 -*_ uniposta(at)
yahoo.it
 -*_ uniposta(at)
gmail.com
 
--------------------------------
Inviato via 
http://arianna.libero.it/usenet/

 12:35 ah no, aspetta... un nonno, non un bisnonno
 
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 (inventava varie cose, questa fu una)
mi piacerebbe vedere com'era fatto :-)
posta pure, grazie
ciao,
Piero 


 
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 testo copiato dalla scansione, con errori sia di scrittura
 che di impaginazione (ovviamente qui non ci sono le figure)
 
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A. GLISSENTI. •
APPARATUS FOR THROWING PR01ECTILES.
APPLICATION FILED MAY 6, 1918.
1,872,481, Patented July 16, 1918.
2 SHEETS— SHEET 1.
 
A, GLISSENTI.
APPARATUS FOR THROWING PROJECTILES.
APPLICATION FILED MAY 6, 1918.
1,273,481- Patented July 16, 1918.
2 SHEETS— SHEET 2.
 
CH.ISSBNO?!, OF BBESCIA, ITALY.
APPABATUS FOB THBOWIKG PROJECTILES.
Specification of Letters Pateat.
Application filed Hay 8, 1918. Serial Ho. 833,988 1,273,4551 1,272,421
 
 
To all whom it may concern;
Be it known that I, ANGELO GLISSENTI,
a subject of the King of Italy, residing at
Via Umberto I No. 20, Brescia, Italy, have
5 invented new and useful Improvements in
Apparatus for Throwing Projectiles, of
which the following is a specification.
This invention has tor its object to provide
an improved apparatus for throwing
10 by means of compressed air, tubes, bombs
and projectiles of all kinds over preferably
short distances.
The improved apparatus being more particularly
designed for war purposes, is of
15 very simple construction, so that it can be
brought into action with extreme rapidity
and can be trained and worked without
producing detonations.
The improved apparatus is characterized
20 essentially by a support adapted to revolve
on a bed or platform, and provided with a
tube for throwing the projectile, upon which
an air compressor connected to the said
tube acts at the proper time. Devices ar«
25 provided for diminishing or taking up the .
recoils and for loading the weapon at its
breech end.
Two constructional forms of this invention
are illustrated by way of example in
30 the accompanying drawings in which: —
Figure 1 is a diagrammatic side elevation
of the improved apparatus.
Fig. 2 is a vertical cross section on the
line is — x of Fig. 1.
35 Fig. 3 is a longitudinal axial section
drawn to a larger scale of a second constructional
form of the improved apparatus.
Figs. 4, 5, 6, and 7 show details of a modi-
40 fication of the breech-loading arrangements.
Fig. 4: is an an axial section taken at the
junction of j;he tube with the breech ;
Fig. 5 illustrates a detail hereinafter described |
45 Fig. 6 is a cross section on the line y — y
of Fig. 4; and
Fig. 7 illustrates a detail hereinafter described.
In all these figures the same references
50 indicate the same parts.
Referring first to Figs. 1 and 2, 1 is the
gun tube (hereinafter called the firing tube)
for throwing the projectile; it is slidably
mounted on the bar 2 which is adapted to
55 turn on the axis 3 in the support or carriage
4 of "the apparatus. 5 is the bedplate or platform, 6 is a compressed air
reservoir fitted with a charging valve 7, and a discharging valve 8j it is
connected by a small flexible pipe 9 to the rear of the firing 60 The
carriage 4 is provided with rollers 10 bearing on the track 11 of the gun
platform so as to allow of the carriage revolving on said platform, and
thereby enabling 65 the firing tube 1 to be trained in the desired
direction. 12 is a graduated arc- for elevating the firing tube turning on
the axis 3. 13 is an opposing spring for returning 70 the firing tube into
its normal position after each recoil. This improved apparatus operates as
follows: — The air reservoir 6 being charged, and 75 the firing tube _1
being loaded with the projectile, and trained in the desired direction, the
cock 8 is opened and the compressed air passing through the small pipe 9
acts instantly upon the rear of the projectile which 80 is thereby thrown
from the firing tube. The pressure of the air in the reservoir is regulated
by a pressure gage (not shown) in such a manner as^to produce a propelling
force upon the projectile corresponding to 85 the distance to which the
projectile is to be thrown. As shown, the air reservoir 6 is situated
between the arms of the gun carriage parallel to the firing tube and is
coupled to the bar 2 by means of fastenings 14. It is however to be
understood that according to circumstances the air reservoir may be
removably mounted on the apparatus so as to allow of a more rapid change of
reservoir. In the example shown in Fig. 3, the improved apparatus comprises
essentially a device A for charging and discharging the air and a central
distributing cylinder B, a gun carriage C, a gun mount D and ac- 100 cessory
parts for regulating the pressure of the air, for effecting the training and
elevation of the. firing tube and for discharging the projectile. The
apparatus is charged with compressed 105 air through the small tube 9, a
passage — a — provided with a discharge valve — a' — , a central chamber — 5
— in which works a piston — c — , an orifice — -d — fitted with a valve
spindle — d' — and a concentric outer chamber —e, — fitted with ports — f —
. When the apparatus is charged, the pis- 90 95 110
 
1,273,4551 1,272,421
 
ton — e— which is under the pressure of
the air in chamber — & — and of the spring —
g — acting upon its rear end, forms, as
shown, with its head — -h— an airtight clo-
5 sure for the firing tube I which receives the
explosive projectile 15 that is to be thrown.
To throw the said projectile 15 by means
of the apparatus, the spindle — d'— screw-
threaded at — d" — is operated by means of
10 the hand wheel — d'" — so as to close the
orifice — d — . The discharge valve — a' —
is opened by pulling the cord — k — . This
causes the plate — K — to move in the direction
of the arrow, and consequently to
15 raise the stem — r — and permit the air in
chamber Z> to exhaust into the atmosphere.
Bj this means the pressure exerted by .the
compressed air in chamber — e — upon the
collar — m — , will drive the piston — c—
20 back and the air will escape through the
aperture — n — behind the rear end — o —
of the projectile and thereby press upon
and project the projectile 15 from the firing
tube 1.
25 The recoil of the firing tube 1 which is
mounted free on the cylinder B, is taken up
by stops — s — , — t — , a coil spring — u —
and an elastic cushion — v — .
The casing z, which surrounds the tube 1,
30 is provided with a flat base i, that is pivoted
for horizontal movement on a pin p, so that
the firing tube may be swung horizontally
for pointing in various directions. The base
has a circular dovetail groove i' (a section
35 of a portion of which is shown) and the
pivot pin p forms the center of a circle corresponding
to the circle of the groove i' '.
The pin p pivotally connects the base i to a
platform q, and this platform is provided
40 with a clamping bolt, the head j of which
is slidably mounted in the circular groove
i2. The platform g is pivotally connected
for vertical movement on the support D by
means of a pin p'.
45 The training of the weapon in the horizontal
plane is effected in this example by •
rotating the apparatus on its pivot — p — ,
and it is fixed at the desired point in the
said plane by means of a clamping nut — y —
50 which' is adapted to clamp the head — j —
against the sides — v — , — w — , of the circular
recess — i' — .
For moving the weapon in a vertical!
plane, that is to say, elevating the weapon,
55 the rear end of the platform — g — is connected
to a long screw — x — . The raising
or lowering of the breech end of the weapon,
relatively to its pivot — p' — , .is effected by
means of the hand wheel — x' — constructed
60 as a nut working on the screw — x — . The
head —x" — • of the screw — x — is formed
with a slot — x"f — to allow the necessary
plate to the pivot pin — I — .
The degree of pressure of the air in the
85 cylinder B is regulated by means of a pres- 70 90 95 sure gage not shown,
.connected to the small pipe — tr — . To dismount the weapon from the
platform it is merely necessary to remove the retaining pin — qf — and to
undo the clamping nut — y — . Figs. 4, 5, 6, and 7 show a modification
designed to enable the projectile to be charged at the breech end 25 of the
gun 'tube 1. In this modification the gun tube instead 75 of being fixed
rigidly by means of screws 18 to the distributing breech cylinder B, as
shown in Fig. 3, is connected to the cylinder B by moans of a hinge 19 which
enables the breech end 25 of the gun tube to be opened 80 and exposed to
receive the projectile. The breech end 25 is closed by means of a collar 20
provided with a handle 21 and teeth 22 which are caused by the rotation of
the collar to engage with corresponding teeth 23 85 on the front portion 24
of the cylinder B. To 'make an airtight joint, any suitable elastic packing
may be interposed if necessary between the contacting surfaces of the two
parts 24, 25. It is to be understood that the improved apparatus
hereinbefore described and shown by way of example, may be modified as
regards its construction for the purpose of rendering it suitable for
receiving and throwing explosive projectiles or non-explosive projectiles,
and generally projectiles of any desired nature, shape and dimensions.
Having now particularly described and ascertained the nature of my said
invention 106 and in what manner the same is to be performed, I declare that
what i claim is : — 1. An apparatus for throwing projectiles comprising a
firing tube, a cylinder connect- "d to the breech of said tube and arranged
log in alinement therewith, means for admitting compressed fluid to the said
cylinder, and a fluid controlled piston mounted in said cylinder for
controlling the passage of the fluid from the cylinder to the firing no
tube. 2. An apparatus for throwing projectiles, • comprising a firing tube,
a cylinder connected to the breech of said tube and including two chambers,
means for admitting 115 compressed fluid to one of said chambers and for
confining the fluid therein, a piston mounted in the other of said chambers
and movable in one direction by the fluid contained in the other chamber,
and means for permitting the exhaust of fluid from the second chamber to
permit the fluid in the first chamber to operate the piston and admit the
fluid from the first chamber to enter the firing tube. 3. An apparatus for
throwing projectiles comprising a firing tube, a cylinder communicating
therewith, means for permitting the exhaust of fluid from said cylinder, and
means operated by compressed fluid in the 120 125
 
1,272,421
 
cylinder for admitting compressed fluid to
the firing tube.
x
4. An apparatus for throwing projectiles
comprising a firing tube, a cylinder con-
5 nected to the breech of said firing tube and
having a plurality of chambers, a piston
mounted in one of said chambers and normally
preventing communication between
the interior of the cylinder and firing tube,
10 means for admitting compressed fluid to said
chamber for holding the piston in normal
position, a valve controlled port placing the
chambers in communication, other ports
placing the chambers in communication near
15 the front end of the piston, and means permitting fluid to exhaust from
the piston chamber. 5. An apparatus for throwing projectiles comprising a
firing tube, a cylinder communicating therewith through a passage, 20 means
for admitting compressed fluid to said cylinder, means for permitting the
exhaust of fluid from said cylinder, and means normally closing the passage
between the tube and cylinder and operated by com- 25 pressed fluid in the
cylinder for admitting compressed fluid to the firing tube. In testimony
whereof I have signed my name to this specification. / ANGELO GLISSENTI.
 
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 19:31 ecco i link e anche il testo trascritto da google
Ma quelli sono i disegni di un cannoncino da baleniera....
Ciao
Michele 

ti ringrazio, molto gentile
ciao,
Piero 

 Michele
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