close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2066547

код для вставки
Jén- 5, 1957-
w. J. SPENSLEY
2,066,547
FOUNDRY SLIP FLASK
Filed March 16, 1956
2 Sheets-Sheet l
7 Jan- 5, 1937-
w. J. SPENSLEY
2,066,547
FOUNDRY SL IP FLASK
Fi-led March 1a, 1956
2 Sheets-Sheet 2_
33
'34
32
36
a1
r
Patented Jan. 5, 1937
UNITED STATES PATENT orrice
2,066,547
FOUNDRY SLIP FLASK
William J. Spensley, Dubuque, Iowa, assignor to
The Adams Company, Dubuque, Iowa, a corpo
ration of Iowa
Application March 16, 1936, Serial No. 69,091
8 Claims. (01. 22-111)
This invention relates to slip ?asks of the type 25 and 26 is positioned on the lower edge of the
used for the manufacture of molds in conven
tional foundry practice.
Among the more important objects of the in
~ vention are the provision of a generally improved
slip ?ask having improved means for retaining
the sand in the cope wherein a sand strip of im
proved form is supported between the lower edge
of the cope and the upper edge of the drag for
1
movement between an inserted and a withdrawn
position and wherein novel means are provided
for retaining the sand strip» in position and
effecting movement thereof between said posi—
tions.
15' Other objects will become apparent to those
skilled in the art from the following description
and the accompanying drawings, in which—
Figure 1 is a side view of a slip ?ask embodying
my invention;
Fig. 2 is a View taken on the line 2-2 of Fig
20
ure 1 showing the lower edge of the cope with
the sand ‘strip carried thereon;
Fig.‘ 3 is a fragmentary section through one
wall of the slip ?ask showing the mold and pat
2
30
tern plate in position with the sand strip inserted;
Fig. 4 is a section similar to Fig. 3 showing the
position of the parts when the cope and the
upper half of the mold is returned to its position
on the drag;
Fig. 5- is a section on the line 5-5 of Figure 1,
and
Fig. 6 is a section on the line 6-6 of Fig. 5.
The invention contemplates a slip ?ask of the
type having a cope, such as shown at ‘l, and a
drag 8 between which a pattern plate designated
generally by the numeral 9 is adapted to be
inserted and within which the usual molding sand
is packed to produce cope and drag mold portions
II and I2, respectively, in accordance with the
usual foundry practice. Ears l3 and M are at~
tached to opposite sides of the cope and carry
bearing members l5 and I6 which receive pins
H and. [8 attached to opposite sides of the drag,
as shown at IS, the pins and ears serving to main
45 ' tain the cope and drag in alignment and permit
removal- of the cope from the drag in the usual
manner.
cope, each of these sections extending between
diagonal opposite corners of the cope and along
the lower edge thereof so that each section con
sists of two legs 21 and 28 joined together at one 5
extremity to form a right angle. An important
feature of the invention is the cross-sectional
shape of the sand strip. Directing attention to
Figs. 3 and 4, it will be observed that this con
sists of a solid piece of metal having its inner
edge- beveled outwardly toward the upper sur
face, as shown at 29. The lower surface of the
strip is recessed, as shown at 3i, for the recep
tion of retainer members designated generally by
the numeral 32, the retainer members being 15
spaced around the periphery of the cope, as best
appears in Fig. 2. Attention is directed to the
fact that the recess 3! is of slightly lesser depth
than the thickness of the retainer members to
provide a small amount of clearance between the 20
forward end of the sand strip and the element
directly below (in Fig. 3 the pattern plate 9 and
in Fig. 4 the strip 2|). This arrangement per
mits the weight of the cope to be normally car
ried on the retainer members and permits the 25
sand strip to be moved freely between its po
sitions.
The retainer members 32 have a portion 33
seating against the outer surface of the cope and
attached thereto by means of screws 34, or other 30
suitable means. Below the portion 33 the re
tainers are bowed outwardly, as shown at 35, to
permit movement of the sand strip outwardly
beyond the outer surface of the side members
of the ?ask, as shown in Fig. 4, and also to 35
partially enclose the projecting sand strip and
provide protection against mechanical damage to
the outwardly extending edge of the sand strip.
Thence, the retainers extend inwardly in parallel
and spaced relation to the lower edge of the cope 40
in the form of fingers 36, which are receivedv in
the recess 3| of the sand strip, as previously ex
plained. It will be understood that the sand
strip is movable between the positions shown in
Figs. 3 and 4, and in the position shown in Fig. 3 45
serves to retain the cope half H of the mold.
Therefore, the weight of this half of the mold is
In this instance, the upper and lower edges of
the drag are provided with metal strips 2| and
50*‘ 22 and the upper edge of the cope is provided
with a strip 23, the strips 2|, 22 and 23 extending
carried by the sand strip and transmitted to the
completely around the ?ask and being attached
corners and are of substantially the same thick
ness as the recessed portions of the sand strip.
?ngers 36 in an obvious manner.
Corner plates 31 and 38 are attached to the 50
lower edge of the cope at diagonally opposite
thereto by means of screws, as shown at 24.
Referring now more particularly to' Fig. 2,
These plates are in the form of fight angled tri
55? a sand strip composed of two sections designated
angles, the hypotenuse of which forms abut
55
2
2,066,547
ments and guideways for the ends of the sand
strip portions 25 and 28. In other words, the
free ends of the legs 21 and 28 of each sand
strip portion abuts against the edges of the plates
3? and 38, as shown at 39 and Ill, and likewise
the free ends of the sand strip portion 26 abut
against these plates. It will be seen that since
the sand strip portions 25 and 26 are unitary,
the inner edges of the plates form parallel guide
10 ways for the angularly formed ends of the sand
strip portions so that they guide the sand strip
portions from the position in which the portion
inserted and withdrawn and yet leaves but a
comparatively small impresion in the sand of
the mold.
While I have thus described and illustrated
a speci?c embodiment of the invention, I am
aware that numerous alterations and changes
may be made without departing from the spirit
of the invention, and I do not wish to be limited
except as required by the prior art and the scope
of the appended claims, in which
I claim:
10
1. The combination in a slip ?ask having a
‘.25 is shown into a position corresponding to that
cope and a drag of a sand strip mechanism com
occupied by the sand strip portion 26.
prising a plurality of retainers extending inward
ly along the drag edge of the cope and in spaced 15
relation thereto for supporting the cope on the
drag, a sand strip positioned in substantial part
Each of the sand strip portions has a bracket
(5'3 seated in the recess 3| of the sand strip por
tion and spanning the corner at which the legs
thereof are joined, as best shown in Figs. 2 and 6,
the brackets being of substantially the same
thickness as the depth of the recess 3!. This
bracket extends outwardly beyond the outer sur
face of the ?ask, as shown in Fig. 6, and has
an ear 5:3 to which a lever 44 is attached by
means of a pin 45. One end of the lever 44 is
articulated on a bracket 46 attached to the outer
surface of the flask by means of a pin 41. The
opposite end of the lever 44 is ?ared, as shown
at 123, for manual rotation of the lever about
the pin 47. The brackets 42 each have parallelly
30 disposed side edges 49 (Fig. 2) which bear
against beveled edges 5i and 52 of the retainers
32 adjacent thereto on opposite sides so that
movement of the bracket 42 is guided along the
diagonal side of the ?ask. The lever 45 is slotted,
as shown at 53, for the reception of a bolt and
nut 54% (Fig. 6), the space relation being such
that the head of the bolt 54 abuts against the
edge of the bracket 46 to limit the rotation of
the lever 44. Because of the slot the limiting po
This acts
to limit the extent to which the sand strip may
be inserted into the mold.
It will thus be seen that by rotation of the
handles 48, the sand strip portions are inserted
or Withdrawn from the interior of the ?ask, the
plates 31 and 38 and the retainers adjacent op
posite corners of the ?ask serving to guide the
sand strip portions so that they move on a diag
onal of the ?ask. Means are provided on the
50 levers M for limiting the extent to which the
sand strips are inserted and this limiting or stop
means is adjustable. The retainers 32 function
to retain the sand strips in position under the
load occasioned by their use. Furthermore, the
55 retainers serve to space the lower edge of the
cope from the element normally positioned there
below such as the upper edge of the drag or the
40 sition of the lever may be adjusted.
pattern plate. The forward ends of the retainer
?ngers 36 serve to limit the withdrawal of the
60 sand strips while the bowed portion 35 of the
retainers serve to protect the outer edges of the
sand strip when it occupies its withdrawn posi
tion. In this way, the retainers serve to protect
the sand strip in its operation and to facilitate
the movement thereof both as to direction and
clearance. It will be noted that these retainers
eii‘ectively carry the weight of the cope half of
the mold without clamping the sand strip and
the beveled edges of the retainer cooperate with
70
the beveled edge ends of the sand strip portions
to effectively guide the sand strip inwardly and
outwardly when the operating lever is manipu
lated.
The beveled inner edge 29 of the sand
75 strip is of such shape that the strip is easily
in the space between said retainers and the edge
of the cope the marginal portion of the strip adja
cent the inner edge being of a thickness slightly 20
less than the combined thickness of the retainers
and the remainder of the strip whereby to sub
stantially ?ll the space between the cope and the
drag, and manually operable means for moving
25
the sand strips.
2. The combination with a slip ?ask having a
cope and a drag of a sand strip mechanism com
prising a plurality of spaced retaining fingers
attached to the side of the cope extending in
wardly along the drag edge of the cope and in 30
spaced relation thereto, a sand strip positioned
in the space between said retainers and the edge
of the cope, said strip comprising two portions
each extending along two sides of the cope, the
two portions meeting at diagonally opposed cor 35
ners of the cope, manually operable means lo
cated at the intermediate corners for moving said
strip portions in and out along the edge of the
cope on the diagonal connecting said intermediate
corners, and means on said strip portions com
40
plemental to some of said retaining ?ngers for
guiding said portions in said movements.
3. The combination with a slip ?ask having a
cope and a drag of sand strip mechanism com
prising a plurality of annularly spaced retaining 45
?ngers attached to the side of the cope extend
ing inwardly along the drag edge of the cope and
in spaced relation thereto adapted to support the
cope on the drag, a sand strip positioned in part
in the space between said retainers and the edge 50
of the cope, the marginal portion of the strip
adjacent the inner edge being of a thickness
slightly less than the combined thickness of the
retainers and the remainder of the strip whereby
to substantially ?ll the space between the cope 55
and the drag said strip comprising two portions
each extending along two sides of the cope, the
two portions meeting at diagonally opposed cor
ners of the cope, the ends of said portions being
parallel with a diagonal connecting interme 60
diate corners, manually operable means locat
ed at the intermediate corners for moving said
portions in and out along the edge of the
cope, and means attached to the edge of the
cope at the corners complemental to said ends 65
for guiding the movement of said strip por
tions, the strip having means at the intermediate
corners for engaging adjacent retaining ?ngers
to guide the movement of the strip.
4. The combination with a slip ?ask having 70
a cope and a drag of a sand strip mechanism
comprising a sand strip portion extending along
the drag edge of the cope between diagonally
opposite corners, said portions having an inner
75
2,066,547
edge sloping outwardly from bottom to top for
insertion into the sand of a mold, and having a
lower surface recessed to a line adjacent the inner
edge thereof to provide an inner marginal portion
of greater thickness than the remainder of the
strip, retainers attached to the outer surface of
said cope, said retainers extending into said recess
to support the strip portions for movement along
the edge of the cope between inserted and with
10 drawn positions, platespositioned in the recess
of said strip portions abutting said retainers to
guide the movement of said portions, and lever
means on the cope acting on said plates to move
said strip portions between said positions.
5. The combination recited in claim 4 wherein
15
adjustable stop means are provided for limiting
the movement of said lever and the amount of
insertion of said strip portions.
6. The combination recited in claim 4 wherein
20 the depth of said recess is slightly less than the
thickness of said retainers whereby to provide
clearance between the inner edge of said strip
portions and the upper edge of the drag.
7. The combination with a slip ?ask of the type
25 having a cope and a drag, of a sand strip com
prising a strip of solid metal wherein the inner
marginal portion is of greater thickness than the
3
remainder of the strip, the strip having an inner
edge sloping outwardly from bottom to top for
insertion into the sand of a mold and having a re
cess on the lower surface thereof adjacent the
opposite edge for the reception of retaining
means.
8. The combination in a slip ?ask having a
cope and a drag, of a sand strip mechanism com
prising sand strip portions extending along the
drag edge of the cope between diagonally oppo 10
site corners and supported for movement diagon
ally along the edge of the cope between inserted
and withdrawn positions, laterally projecting ears
on the sand strips adjacent the corners thereof,
brackets attached to the side of the cope adja 15
cent the corners thereof and in a horizontal plane
spaced from the horizontal plane of said ears, the
brackets and ears being out of vertical alignment,
a lever articulated at their ends on said brackets
for rotation on a vertical axis and a vertically dis 20
posed pivotal connection between said ears and
an intermediate point on said levers whereby said
strips are moved between said positions upon ro
tation of said levers, one of said positions being
determined by the amount of clearance in said 25
pivotal connections.
WILLIAM J. SPENSLEY.
Документ
Категория
Без категории
Просмотров
0
Размер файла
576 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа