вход по аккаунту


Патент USA US2107322

код для вставки
Feb. 8, 1938.
2,107,322 .
Filed May 3, 1937
4 Sheets-Sheet 1
„ `E
<m.{Ii?\ \ \.w\ \ „d«ì.ìMmf/«ML œufm»,Q . \@ig-«we _.„MAmul9v~
I _'
\ Ve.“ OYS
G’. Äh evsoh
d mes Ã.
, 1938.
Filed May 5,_ 1957
4'Sheets-Sheet 2
L Kì _e___
Feb. 8, ìßë.
Filed _May 3, 1957
4 SheefbS-Shee’rl 5
Feb. 8, E938.
Filed May 3, 1957 '
4 sheets-sheet 4
l 'l l I I
Àdoìpñ G, A“
Patented Feb..v 8, 1938
" Y
oEN'rarr'UGsn cas'rmo moms .
AAdolph G. Anderson and James I. Kibbe, Mucke-à
` t0n, Michqwsssignors to'Cainpbeil, Wyant à
« ' Cannon Foundry Company, Muskegon Heights,
,Miclm s. corporation of Michigan
application Mays, 1931, sensi No. 140,368
-_12. Claims.
'I'his invention relates to a machine for centrif->
ugally casting tubular sleeves. In practice the
ment about the axis of the post i. The. post i
is equipped> with rack teeth at one side meshing
withl which is a gear l carried on a shaft which
machine which we have 'devised is used in cast-v
ing cylindrical sleeves for use in internal com-_
bustion engines, in which thequality of the cast
metal must be very high, being of an especially
uniform and homogeneous character and capable
of being machined to .relatively _thin cross sections
` and have substantially perfect inner andl outer
cylindrical surfaces after machining.
It is 'a primary object and purpose of the pres
ent invention to provide a machine for the use
stated, and by means of which the cylindrically
may be operated to .adjust the motor vertically
to different positions. 'I'he motor shaft has a
ley 9 around which an endless belt I0 passes,
he beltv also passing around a driven'pulley II
secured at the outer end of the main shaft I2 of
the‘machine. The shafting of the belt is for
the purpose of changing the speed of the motor
‘shaft and the belt may be tightened to the desired
degree by operation of the shaft carrying the '
gear 8. A brake Il is associated with the shaft
cast sleeves may be produced in quantity and with . I2 and is tightened by swinging an operating cam
economy, the molds in which the sleeves are cast .I5 to the left (Fig. 1) through the horizontal
being quickly introduced into the machine and movement of a rod I8 connected to the cam mem
ber I5 and which is connectedto anarm I1 pivot- -
clamped and held therein, thereupon the molten '
iron may be poured while the mold is revolved, ally mounted at one end on the supporting cast
and after the casting operation has been com ' ing I`, and with which is associated a hand lever
I8 to _apply the brake and stop the shaft I2 at
pleted, the mold with the cast sleeve therein .re«the end oi’ a casting operation.
.moved for the insertionI of a succeeding mold.
The shaft extends through and is mounted in
Many objects and purposes _and structure to
suitable bearings I9 and 20 carried bythe sup
attain the same are provided, including novel
means for securingl and clamping the molds in - porting casting. At its end and extending over
the table 2 a mold receiving and holding housing 25
25 the machine; means for compensating for expan
is positioned, preferably cast integral with the
sion -caused by the high temperature of the molten
metal, novel means for air coolin'g the machine shaft I2. Such housing is'of cylindrical form,
as it is operated, and many other novel construc , as indicated at 2| (Fig. 4), and has three spaced
tions and arrangements of' parts, all of which apart continuous annular ribs 22,. 23, and 2l, the ’
30 will appear and be understood from‘the follow-x first of which is intermediate the ends of the
cylinder, the second at the open end and the third
ing description, taken in connection with the ac
adjacent the end where it joins with the -shaft
companying drawings, in which, '
Fig. 1 is an elevation and longitudinal central I2 (see Fig. 3). Longitudinal radially extended
lvertical section through a machine for centrif
and spaced apart vanes 25 extend between-and
35 ugally casting elongated cylindrical sleeves. in ' are integrally connected with said annular ribs. 35
An end> 21 to the cylindrical housing integrally
accordance with our invention.
joins the wallsof said housingwith thev shaft I2
Fig. 2 is an end elevation thereof.
Fig. 3 is a fragmentary sectionenlarged similar ' and through this- end'a plurality of openings 2Q
to the section shown at the left in Fig. 1. »
are made for air passage; 'It is apparent >that the
Fig. 4 is a fragmentary elevation and section, cylindrical mold holding and Iczarryingmember 40
the section being a horizontal central section _2| is rotatable with the shaft
through the left-hand portion of the machine _
A' cylindrical cover. 30 of suitable thin metal is ‘
shown in Fig. 1, andwith _the closure member‘for located around` the mold carrying housing de
holding the 'mold in place swung .partially -out
scribed, being connected at one fend portion to a.
' l .ring 2| which in turn is bolted to the supporting 45
Fig, 5 is a transverse vertical section. substan-v casting I. Atits opposite end a substantially con
tially on the plane of lines B-S-of'll‘igs. .1 -and l3, tinuous annular trough member 32 is located to
looking in the direction indicated by the arrows. -which >a similar ring of angle iron cross section
Like reference characters refer to like parts in 33 is bolted at one flange, the other flange- having
,the diii'erent figures of the drawings.`
.a fixed connection to the outer e'nd of the cover
supporting casting I is provided at one lside oi’
Il. This member 32 rests' upon the outer'- por
-tion of the base 2. At its upper side it ha's‘a
which is an integral horizontalbase 2.- An elec
>hollow branch u which formsI an outlet for air
tric motor 2 is mounted upon a carrying table l
55 above the supporting casting I'. _fromwhich table ^
a verticalpost l5 extends downwardly through a
sleeve 6 >while a pin ‘I attached to the'- table l
passes through'an opening in> >a ?angefat the
-during the operation ofthe machine. the air be
ing drawn through ‘suitable openings, as indi
cated atzlla in Fig. 3 made near the-lnnercnd
' In the construction -of the machine a »vertical
upper‘endofthe sleeve ._ therebyiholding--the
table andthe vvmotor
which circulates within the enclosedcover 30 -
of the'cover 8l.
Atfthe open end of ,the housinsr 2I a ring ll
is bolted
has a horizontally projecting m
2, 107,822 ‘
nular flange yat the outer side of which a plurality
is to move the ring inward'until' stopped by the
of screw threads II are cut. said threads prefer
nuts on said bolts.
ably being square threads, though not necessarily
A floating member is mounted upon the closure
member and within the same, having a cylindrical
` so. 'I‘he inner side of the ring” is provided with
î a conical surface 31 ¿which tapers inwardly as
flange i3 which passes through the central opem/ 5
ing in web 69, integral with which flange is a web'
Q4. A continuous annular rib 65 is cast integral
with and-extends from the drum 63 to which a
ring N is permanently secured by bolts or screws
The drive shaft I2 is hollow extending nearly
through which is a rod or shaft 3l.' As shown in
Fig. 1, the-«right-hand end of the shaft bears
(Fig. 3). The ring 66 at its outer periphery is
against one end of a coiled compression spring 29
which is disposed within the hollow drive shaft ~ provided with square screw threads 61 adapted
- I2, .the opposite end of the spring bearing against
,to coact with the- threads 80a on the ring 6I. At
an adjusting screw 40 which extends through a
vscrew cap 4I threaded onto the end of the drive
15 shaft I2, an' adjusting and locking nut being
its inner side the part thereof projecting inwardly
from the rib 65 is interiorly threaded., as at Il >
with threads of the same size and character as'
the threads 26 on the ring 35. A ring 69 provided.
at its outer periphery- with continuous gear teeth
is secured to and located around the drum 63. A
screwed onto the outer end of the adjusting screw
40 as shown. It permits the tension of the spring
e 2l to be adjusted.
Bald spring vhas a tendency
to move the shaft 38 to the left (Figs. 1 and 3). , sleeve 'III having a longitudinal passage 1I there
’I'he longitudinal movement of the rod or shaft through is_formed integrally with‘the'web 59 20
Il is limited by a pin 42 -(Fig 3) mounted on and through'which passage a shaft 12 `equipped with
passing through shaft I2 and entering a recess 4gear orïpinion teeth 13 at its in'ner end may pass,
43 in the» shaft 2l. the length of- said recesslless the teeth 13 meshing with the gear teeth on the
Athe diameter of the pin covering the 4range of ring 6I, whereby _the floating member may be ro
tated about its horizontal axis. At the inner edge 25
said shaft n immediately beyond the closed of the flange 58' of the drum closure member a lo
eating plug 14 ismounted (Fig. 4) _adapted to en
end 21l of the cylindrical mold housing 2i is pro
vided with a head 44 which has air entrance- ter a .guide recess 15 in the member 22 when the
closure member‘is swung to closed position. A „
. passages 45 therethrough '_andf` which has a cylin
bracket 10 is connected with said ñan‘ge 5.3, on 30`
drical dange 48 continuously around the same a'nd
bearing against the inner sides of the cylindrical ¿ which is mounted a pivoted lever latch 'I1 for re
mold carrying housing 2l; The inner sides of leasably engaging _with a keeper 18 ,on the mem
1 the flange“ are of conical form, as shownv at 41, ber/32 as shown in Fig. 4 to clamp the closure
tapering irí the same direction Aand at substan-._` member in the closed position shown in Figs. 1
and_3. The motor may be v_controlled >by switch 35
~ tially the same inclination as the inclined conical
buttons such as shown at 19 on the outlet at 24;
surface 21 on the ring II. The end portion of
The core 56 and the web 64 ofthe floating mem
the rod or shaft Ilja) which the head 44 is con
lber described have central openings _l0 for en-' I
nected is bored longitudinally for a distance re
ceiving a coiled compression spring 43 therein,V
trance vof molten iron into the mold.
and also a rod 4| one end of which bears against
said spring. ’1‘herod49 extends outwardly be
Assuming the partsto be in the position shown in Fig. 4, the ñoating member has been operated
-. yond the end of the' shaft “and has a circular
so that it is at its outermost position, and the ’
plate “secured _thereto through which` are air' ring ‘I is in screw threaded engagement with
the ring 40. The closure member may be swung
to wide open position, anda mold with its sur .46
: e. II.v lThe plate Il has a vertical outer
face as shown. It is evident that the rod 4I and
-the plate Il attached thereto _may have a `limited rounding flask, consisting of the- sand mold ll,
horisontal movement relative to the spring". .the ilask l2 and the members I3 and\ I4 at itrsl
-In11*lg.¿1 a pin -and slot is indicated? to limit -the- ends inserted within _the housing 2l. The mem»
ber/i3 engaging ilange 46 will serve tog centrally
extent ofsuch movement.
-Theîmold used is formed within a cylindricall locate Ithe inner part of the mold and together
tubular flask l2 to the oposite end“ portions» of , with the inner end of the mold bears against the
vwhicha?i'e disks Il and I4, permanently secured. plate ll, while the forward member M_at its con7
the per'lpher‘aiedge> portions of which are conical ical peripheral edges engages with the `conical
'surfaces corresponding with conical surfaces 41 surface at 21.v v Core It is placed in _the outer end
55 and. ~I1, respectively. _The lmold Il is of sand u o_f thje flask and the closure member is then swung
located within~ the flask I2 and has a cylindrical' to- closed position and latched. The shaft ‘12f
is inserted through the passage 1i and the pinion
mold' cavity into which `molten _iron may be de
'I'he‘inner end _of Athe mold is thickened 'Il engaged with the gear teeth of ring 6l. Then
radially as shown in Fig. 1 and at the outer end by rotating the ring in the'proper direction the
of the mold is a disk-like core Il, the outer ver-m threads n wm connect with the threads n and
tical face of which lies flush with-the enti,- 'of the' the ñoating member be moved horizontally to the
position shown in Fig. 1 or 3, and push the niold
Horizontal lugs Il. _(Figs. 2 and 4)f extend from andsurrounding flask aheiîd of it until the outer
peripheral conical surface of the member- 54 isl ,
_the member 22)"on which a> drum-like closure brought
tightly into engagement with the conical 65
member is pivotally mounted to swing about a l21. 'I‘he plate '5I with the connecting
vertical `axis._ Said member comprises a'cylin surfaces
rod 48 .will be moved to compress the spring 4l
drical ñange l. and an outer web i9A in_the cene and, if necessary, the head`44 and the shaft Il
' tral portion of which is a circular opening._ A I with its connecting member moved. with a result
70 ‘ ring” having screw threads Ilia4 at its inner side ant compression of the spring I9. „
is mounted within the flange 58 and connected ,
vWith the parts in this position or as shown
with the web 59 by bolts4 0I which pass through in Figs._1 and `3, the mold is then ready to rel
the webvand ring. Compression springs I2 sur„- -ceive molten iron.
round the bolts between the inner side of the~ ' The motor is started in operation driving the i
web Il and said ring 60, the tendency of which
shaft I2 and the connected parts at high speed
of rotation about a horizontal
The floating
member has a bearing in’the opening in the web
at 59, and rotates with the cylindrical housing 2Ly
-The molten iron is poured through the openings
l0 into the mold and the rotation isy sumciently
high that the molten iron, through centrifugal
and is to be considered comprehensive'of all`
forms of structure coming within their scope.
l. In a machine, of the class described, a r0
tating cylindrical housing adapted toireceive an/
elongated‘flask enclosing a nïold therein, a flask
' action, spreads evenly over the inner sides of the
comprising a cylinder and a disk at each end
mold 55; and with loss of heat the molten iron
secured thereto, the peripheral edge surfaces
solidiñes, producing a cylindrical sleeve.
' thereof being of tapered form, a yielding mem
" '
The switch controlled by the button at ,19 is
operated to interrupt the current to the motor
and -the brake at Il_applied to stop rotation by.
manual operation of the lei/cr` Il (Fig. 2). The
shaft 12 is again inserted but is then rotated in
the opposite direction to disconnect ring ß from
the 'member 35 and reconnect it with the ring 0I,
- as in Fig. 4. Thereupon, the latch 'Il may be re, leased from the keeper 1I, the closure swung to
ber at the inner end of said housing including a 10
cup-like end- having inner sides with' surfaces of
conical form corresponding to the peripheral ‘sur
face of the annular disk at the inner end ofthe
nask, said cylindrical housing at its outer end
having an inner conical surface corresponding to .is
the surface at the periphery of the disk at the
l outer end of theiflask, and means for forcing
open position and the flask, mold therein and the
said-`iiask with the mold therein inwardly until v'
the outermost disk at its edges engages with the
sleeve cast within the mold removed from the
machine. The succeeding Voperation is a repeti
-conicalsuri‘ace at» the outer end of the flask'
. v~
thereby centering the flask and holding it nrmly . .
tion of what has been described, and the opera ` in the housing, as specified.
tion may be repeated as many times as desired ' 2. In a machine ofthe class described, an elon
for the production of a plurality of. centrifugally A gated horizontal cylindrical housing open at its
outer end, a rotatable hollow shaft to whichl the
cast elongated sleeves.
'I‘he rotative speed of ’the shaft I2 varies with opposite end of-said housing is connected, a sec
the casting of'diil'erent diametersof sleeves. It
‘ond shaft extending through the hollow shaft, ’
ends of the flasks will be reducedA or increased.
like form and having inner tapered sides, a mem
is apparent that the flask,” may be of a diil'er-" spring means tending to move ‘said second shaft
ent diameter in which case the radial projection into said housing, a member attached to the end
30 of the members 53 and Il _outwardly -from the of said second shaft'within said >housing of cup
Forv the larger sleeves a rotation of 1200 R. P.- M.
may be sumcient and for smaller sleeves the r'o
ber connected to the outer end> of the housing
likewise having inner- tapered sides, ’a' ñask .com
prising an elongated cylinder and
a . disk located
“ ased
tation mayrbe incre
to as'high as 3 600 R . P ’ around each end of the cylinder and secured 435
M.; but in any case the rotation must be at a
high enough speed that tlie'l molten metal is
spread out evenly over the entire inner cylindri
cal surface of the mold.
thereto, said disks having conical peripheral sur-`
facesadapted-to coact with the tapered inner
- sides of 'said members attached respectively to the
During the rotation,v 'the an structure compris- -second shaft and tothe outer _end of the housing,
ing the severaly annular` ribs 22,23, and 24 and
the horizontal vanes. 2l induce a current of air
„ and also throw'the air'outward'due to centrifugal
action, causing a now of air toward the member
3.2 to escape Athrough the outlet at 3l. Air may
pass through the
es Il, Il, and Il length
`wise of the sleeve which i's being cast and heated
air likewise passes through the slots 2l outward
ly. the inlet of atmospheric temperature air being
through' the openings 3io.
With the structure described the entering of
a flask and mold and the removal of the ñask,
mold and vcasting therein is’rapldly accomplished.
The- longitudinal expansionof the flask by reason
of the great increase in temperature which occurs
55 when the high. temperature molten iron is put
into the mold isl compensated' by a yielding lo'n
gitudinal _movement of the rod or shaft _Il with
a further compression of the spring 3l. The
floating mount of the'vring-IU on the bolts Il, to
gether with the springs il acting on vsaid, ring
permit yielding of the ring when required as the
a rod extending partially lengthwise of the sec .40
ond shaft, spring means acting thereon tending
to move said rod into said housing, a plate hav-v ing a vertical outer face of’an area greater than
the area of the end ofthe ilask connected to
the rod within said housing, and closure means 45
adapted to be moved‘into a po'sition to
with the outer end »of said flask and inovev eï
saine longitudinally against the yielding resist
ance of said spring means and -until the disk at
the ’outer end of the flask comes lintro snug en
sagement with the member attached to the outer' end- of said housing.
3. In a machine of the classdescribed, a cylin
driciilv housing open -at its outer end and sub
stantially closed at its inner end, a rotatable 55
shaft to which s_aid housing is connected and f
from which it horizontally projects, Aa flask with
an elongated - cylindrical mold therein. ‘located
within the housing, .means for locating. said flask`
with'its airis in substantial coincidence with the
axis of said shaft and housing, a cylindrical en
closure around the lhousing and spaced there
noating member with the ring-Il attachedfthere-I ~ from, avclosure member/«hinged thereto and
to comes into contact with the ring Il on closure
of the closure member: ‘~ Rapid production of cast » cuántos to be swung into closing position against
05 iron alloy sleeves is had.
The sleeves, because
of the high temperature of the molten iron used,
which may be a' temperature above 2700? F. are
the outer endet the flask or to open 'pt_isitio'n.j 65
and a manually operable floating member mount
ed on said closure member and operable to en
gage with the outer end of the flask and force
oi’ high quality, the metal is homogeneous -the same` into position, said floating member
70 throughout without defects, and-,the free carbon 'having an opening therein' for the‘pouring of 70
in very iinoly divided form is' thoroughly one ~ 'molten metal into said mold.
homogeneously disseminated through the casting,
4; A oonstruotibn containing the elements in"
‘ permitting the casting to be machined accurate
lcombination 'defined in claim 3, comblnedwith
ly and to a relatively thin cross section.
f '
The invention is defined in the appended claims
' yielding means resisting the inward ,longitudinal
movement of the flask, and coacting means on 75.
the housing and the flask for centrally locating
the flask in the housingwhen it has been moved
latching the closure member in closed position,
a iloating member rotatably mounted within said
closure member, means on said >iloating member,
to its innermost position.
5. In a machine of the class described,` an _ means on said _closure'member and means on
elongated cylindrical housing open atone end
and substantially closed at the other end, a ro
tatable shaft connected to the closed end of the
housing, said shaft and housing being rotatable
-Y about a horizontal axis, an enclosure surrounding
the housing and spaced therefrom, `a closure
member hinged thereto adapted to be ?êle'asable
held in -closed position, a noating member
mounted on said closuremember for rotation and
for bodily movement in a horizontal direction,
means for rotating said floating member, inter
engaging threaded means on the' floating member
and said housing for connecting the same to
gether on rotation of the iloating member in one
direction, and interengaging threaded means on
the closure member and said floating member for
connecting the same together on reverse rotation
of the floating member.
'6. In a machine of the class described, a ro
tatably mounted elongated cylindrical housing',
said housing whereby said floating member on
rotation in one direction connects with the hous
ing and bears against the flask to move it to
innermost position to move lwith the housing on
rotation thereof, and upon rotation of. the closure
member in the opposite direction disengages from 10
the housing and connects with said closure mem
ber to swing therewith to open position.
9. An elongated cylindrical ilask, a disk con
nected to and surrounding veach‘end portion of
the flask, said disks having conical peripheral
surfaces, a mold within the flask, an elongated
housing open at one end to receive said ñask and
mold -which may be moved longitudinally into
said housing, said housing adjacent opposite ends
having conical interior surfaces to engage with 20
said disks on the ñask and means for pressing
against the outer end of the ñask and forcing
the outer surfaces of the disks and housing into
engagement with each other to thereby centrally
closure at its outer endv -having an air outlet and
locate the flask, said means closing the outer end
_of the ñask and having a molten metal pouring
opening therein, and a plurality of annular ribs
around said housing having a plurality of lon
said housing having air _passing openings for
gitudinal »vanes therebetween.
means for locating and centralizing an elongated
-ilask with a mold therein in said housing, a sur
g rounding enclosure around the housing, said en
circulation of air on rotation of the housing and
for forcing the same outwardly through said
. outlet, there being air entrance openings into the
space between said housing and enclosure there'
for, a closure member hingedly mountedl on said -
10. «In a machine of the class described, an 30
elongated horizontal rotatably -mounted cylin
drical housing having anïopen outer end for
entrance of a flask and mold1 therein and a plu
rality' oi holes "through its closed inner end for
enclosure, means for releasably» , securing the » the passage oi' air therethrough, a cylindrical iiask 35
closure member in closed position at the outer end _ with mold therein centrally located in said hous
oi' the housing, a floating member mounted with
in said closure member for rotation and for hori
sontal movement inward or away from said hous
ing, manually operable means for rotating said
closure member, an interiorly threaded ring with
in the closure member, a cylindrical member both
ing, means for closing the inner end of the ilask,
means adapted to detachably connect with the
outer end oi' the housing to close the outer end of '
the flask and having a molten metal pouring 40
-opening therein, a moyably mounted supporting ,
member and means thereon with which said last
interiorly and exteriorly threaded connected to »
mentioned‘means is connected upon disengage
said floating member, and an exteriorly threaded
member connected to the outer end of the hous
ing, said member attached to the floating mem
ber screwing thereon when rotated in one direc
tion and screwing into- the ring carried by` the
closure member when rotated in the opposite
ment from said housing.
- '
11. A construction containing the elements in 45
combination defined in claim 10, combined with
manually operable means for moving said closing
means for the outer end oi' the flask to selectively
connect the same either with vsaid supporting
member or the outer. end
portion of the housing.
'1. A rotatably mounted cylindrical housing-,open at Yits outer end, an exteriorly. threaded
member secured at the open end of said housing,
a cover surrounding the housingand open at its
outer end, a closure member hinged to said
cover and adapted to'be swung to closed position,
means for releasably latching theclo’su're‘ mem
12. In a machine of the class described,ía hori- _
.sontally positioned rotatably mountedsubstan
tially'cylindrical housing open at its outer ~end,
a cylindrical ñask with-a cylindrical mold there
in located within' said'vhousing and insertable 55~
thereinat the open end of the housing, yielding
means within the housing against which the
ber in closed position, an interiorly threaded ring - inner end of said il’ask engages and which yields '
within the closure member, a second'ringboth and moves'upon the 'application of a'predeter
exteriorly and interiorly threaded attached to mined pressure against the“ outer end ofthe flask,
`the. -noating member, and means for manually ' locating means on the ends of the iiask, on thel
outer end oi' the housing and _on said yielding
turning said iloating member operable from out
side said closure member.
means for centrally locating the flask and mold
$.Inamachine'oitheclass described, aro ' within the housing upon the application of said
tatabiy -mounted horizontally located housing pressure against the outer end of the flask, a de'
'adapted to receive a flask with a cylindrical mold
tachable' closure for the outer end of the hous-v.
therein, means yieldingly resisting the entrance -ing screw connectable thereto, and means for
of the flask to extreme inner position therein,
said means engaging with the 'inner end oi’ said
i'iask, a support adjacent the outer end or the
housing, a closure member hingedly mounted on
said support and-adapted to be swung to closed
position or to open position, means for releasably v
manually rotating -said closure, said closure mem
ber having a „molten metal' passing opening
therethrough- for pouring molten metal into said 70
Без категории
Размер файла
913 Кб
Пожаловаться на содержимое документа