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Патент USA US3071897

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Jan. 8, 1963
3,071,887
E. J. voN ARB
LEVELING APPARATUS
Filed Feb. 11, 1960
3 Sheets-Sheet 1
1470
EDWARD d. VON ARB
BY
MAM,
ATTORNE S
Jan. 8, 1963
3,071,887
E. J. voN ARB
LEVI-:LING APPARATUS
Filed Feb. l1, 1960
3 Sheets-Sheet 2
im@
INVENTOR.
EDWARD J. VON ARB
BY
„I
I
l@ ATTORNEjS
l
U
.
Jan. 8, 1963
3,071,887
E. J. voN ARB
LEVELING APPARATUS
Filed Feb. l1, 1960
3 Sheets-Sheet 3
ON
ln
BY
INVENToR.
EDWARD J. voN ARB
www»
ATToRNE s
p
United States Patent() " ICC
3,071,887
Patented Jan. 8, 1963
l
3
3,071,887
inclined plane and cam members, have male and female
screw threads which cooperate upon the rotation of the
LEVELING APPARATUS
Edward J. Von Arb, Adrian, Mich., assignor to Revco,
Inc., Deerfield, Mich., a corporation of Michigan
Filed Feb. 11, 1960, Ser. N0. 8,062
16 Claims. (Cl. 45-139)
This invention relates to leveling apparatus in general
and in particular to leveling apparatus which may be uti
lized with built-in or other cabinets which have leveling
points that are not readily accessible. .
The :built-in market which includes refrigerators, freez
ers, clothes and dish washers, etc., both in domestic and
in some industrial applications has grown such that it
`now affects a large portion of the economy and ha-bits of
the consumers. Such devices almost always need leveling
for best operation and always need leveling to enhance
the appearance, particularly »when adjacent to or between
other built-ins or cabinets.
displacing member to cause the movement of one of the
inclined plane and cam members lwith respect to the other.
The leveling apparatus described herein may be also
defined as leveling apparatus for independently moving
two remote points with respect to each other comprising
a jack or vertically adjustable means attached to a liirst
of said two points, an inclined plane member, a cam
member registering with said inclined plane member, one
of said inclined plane and said cam members abutting a
second of said two points, a displacing member journaled
in a base member of the jack means and attached to said
inclined plane member or cam member not abutting the
second point, the displacing member and the member at
tached thereto being adapted'to cooperate with the mem- ‘
-ber abutting a second point to move the second point, the
jack means having a lateral extension adapted to guide
Since a built-in most com
movement of the member attached to the displacing mem
monly has at least two sides which are inaccessible and 20 ber, the lateral extension adapted to keep said inclined
sometimes three the product must be leveled before it is
plane and said cam members in registration.
placed in its desired position. However, differences be
Other objects, features and advantages of this invention
tween the ñoor surfaces when the device is leveled and
will appear when the following description is taken in con
the floor surfaces where the device is tobe located may be
junction with the accompanying drawings, in which:
such that it is impossible to properly level the device un 25
FlG. I is a sectional view of leveling apparatus em-body
less the leveling is accomplished with the device in its ining the teachings of this invention;
stalled position. The latter is particularly true when it is
FIG. II is a front- View of the apparatus illustrated in
desired tov level the top surface of the product into the
FIG. I;
plane deiined by the top surfaces of »apparatus on either
FIG. III is a cross sectional View of FIG. II; and
side of lthe Äbuilt-in. Further, since the consumer himself 30
FIG. IV is a sectional view of a second embodiment of
may‘install the devices, either to save the cost of installa
the teachings of this invention.
tion or because the device is being moved to a new posi
Referring to FIGS. I, Il and III there is .illustrated the
tion after initial installation, the built-in device may not
ñrst embodiment of this invention in which the leveling
be properly leveled for best operation and appearance
apparatus is utilized to level the front and back corners
simply because of the problem in moving the heavier
of a built-in device which is designated generally at 10.
built-ins out to adjust the levelers and pushing it back into
The lower portion of the cabinet designated generally at
position.
10 may comprise individual foot pieces or a completely
. Accordingly, it is an object» of this invention to provide
unitized cabinet. It is to be recognized that an identical
improved leveling apparatus.
g
Another‘object of this invention'is to provide leveling
apparatus which allows or provides >:tor adjustment to
level from one side only of a product without moving the '
product or device out of position.
f
`
unit may be used on an opposite side so that all four
corners are adjustable with respect to each other.
The front corner or point 11 is equipped with a
-stair step shaped recess member which extends laterally
the full length of one side of the built-in 10 and which
provides a recess into whichthe leveling apparatus _may
A -further object of this invention is to provide im
proved leveling apparatus by vwhich one of two o_r more 45 fit beneath the built-in so that the side walls of the built-`
in may be installed ñush against adjacent cabinets or
points may be moved independently with reference to the
other point to accomplish leveling of a product.
‘
other built-ins. The most forward or front portion of
A still further object of this invention is to provide an
the recess member '11 has a hole 12 formed therein to
improved leveling apparatus which is inexpensive, easy to
receive a screw threaded boss 13. The boss 13 is in
50 serted into the hole 12 and may be welded or otherwise
install, and simple to manipulate.
suitably attached to the recess member 11. Although a
In accordance with the a‘bove objects leveling apparatus
'for built-in or other devices, of which a part is inaccessible "
for ordinary leveling purposes, is described hereinafter
which comprises the following features. A vertically ad
number of suitable leveling devices may be utilized for
the vertically~ adjustable means to level the front corner
which is accessible to the consumer or serviceman, the
justable eXtensible-retractible means abutting -against a 55 screw jack means as described herein is advantageously
_iirst accessible leveling point is utilized for leveling a front
or first point of a device. An inclined plane member and ’
a cam member registering therewith is utilized to level an
utilized. The screw jack means is illustrated as com~
prising the boss 13 having female screw threads formed
therein, a stud 14 having a bearing end 15 and a screw
threaded end 16, and seat means,
inaccessible or second leveling point. One of the inclined
plane or `cam members abuts the inaccessible leveling 60 an aperture 17 formed in a base
the bearing end 15 of the stud 14.
point. A displacing member is- attached to one .of the
in FIG. I rotation of the stud 14
registered inclined plane and cam members and is adapted
to move the member to lwhich it is attached with respect
which may comprise
means 18, to receive
As may best be seen
by the application of
a wrench to the hexagonally formed portion 19 causes
vthe stud to turn both in the seat or base means ‘17 and
to the other of the registering members. The displacing
member is operable from an accessible position adjacent 65 18 and also within the boss 13. The rotation of the
bearing end 15 in the base means 18 eifects no vertical
the vertically adjustable means in the front. The‘verti
movement of the front corner of the built-in 10‘. How
‘cally adjustable means has a base member which has pro
ever, the cooperation between the male and female
vision for journaling the displacing member therein. The
vthreads of the other end of the stud 14 and the .boss 13
'base means of the vertically adjustable means also has a
lateral guide extension which is adapted to maintain the 70 causes the front corner of the built~in to be vertically
registration of the inclined planeand cam members. The
vdisplaced to a desired point. ,
v _
{displacing member and the attachedV one, of the registering
The base means 18 of the vertically adjustable or jack
3,071,887
4
3
means utilized to level the front corner of the built-in
is provided with a laterally extending member 20 which
is generally U-shaped. The lateral member 20 extends to
`70 and thus the rear corner against which the upper
wedge member 70 abuts.
the rear corner of the built-in it). As best seen in FIG. I
a wedge or inclined plane member 30 having an inclined
Although particularly advantageous embodiments are
shown for the apparatus of this invention it is to be real
ized that there are functional equivalents which will ac
plane surface 31 is attached to and/or abutted against
complish the teachings of this invention. `For example,
the rear corner of the built-in device Iii). Disposed with
in the lateral extension member 20 and registering with
for displacing the front or displacing the ñrst point in a
desired direction the jack means or vertically adjustable
the inclined plane member 31 is a cam member 40. The
means 14 which is shown and described is meant to cover
lateral extension member 20 maintains the registration
any vertically adjustable or extensible-retractible means
of the inclined plane surface 31 and the cam member
40. An elongated bolt 50 journaled in an aperture 51 of
the base member 18 extends throughout the length of
which may be used on a kbase means abutting an accessible
the laterally extended guide member 2t) and is attached
to the cam member 40 by means of an aperture or cavity
41 formed in the cam member 40 and through the co
operation of male and female screw threads formed ou
the bolt 50 and within the aperture 41 of the cam mem
ber 40. Rotation of the bolt 50 causes lateral movement
of the laterally moveable cam member 40 which bears
against the inclined plane surface 31. Such lateral move
ment effects a vertical adjustment of the rear corner of
the built-in device 10.
Although generally the weight of the built-in device
will be suflìcient to assist lateral movement to the right,
as viewed in FIG. I, of the cam member 4t) and hold the
head of the bolt 50 against the base means 1S whenever
the bolt 50 is properly rotated, it may be advantageous
leveling point. There are several such devices known
in the art which need not be described herein. For dis
placing a second point remote from a lirst point the
teachings of this invention provide that an inclined plane
member and a cam member registering therewith are re
quired. Hereinbefore the apparatus has been described
as assuming that the inclined plane member, such as
30 and 70 shown in FIGS. I and IV, is attached to or
abutting the second point that is desired to be leveled.
However, as most readily understood from viewing FIG.
IV, the inclined plane member may be the lower wedge
80. That is, the lower wedge 80 would be laterally dis
placed with the inclined plane surface 8‘1 bearing against
a cam piece (or the second point itself) such that lateral
movement of the inclined .plane member 80 causes dis
placement of the second point that is being leveled in a
desired direction. In the just described instance the
to provide the bolt 50 with a thrust collar arrangement
upper wedge 70 would be such a cam member. Obvious
60 so that when the weight of the built-in device 10 30 ly, the cam member need not have an inclined plane
is suiñciently light the proper rotation of the bolt S0 will
surface itself but it advantageously may have such a
allow the bolt to bear against the base member 18 by
surface.
means of the thrust collar arrangement 60 so that the
Therefore, to properly define applicant’s invention, for
cam member 40 will be properly laterally moved. The
leveling a second point remote from a first the combina~
thrust collar arrangement 60 is illustrated in FIG. I 35 tion comprises an inclined plane member and a cam mem
and may comprise a washer 61 held in place, so that
ber registering therewith. One of the inclined plane and
the bolt 60 may bear thereagainst, by means of a cot
cam members just described abuts an inaccessible level
ter pin 62 or other suitable means which will removably
ing
point. A displacing member, such as the bolt 50,
secure the washer or thrust collar 61 to the elongated
is attached to one of the registering inclined plane and
bolt 50.
40 cam members and is adapted to move the member to
Referring to FIG. III there is shown a cross section
which it is attached with respect to the other of the regis-l
which discloses the internal structure of the wedge or
tering members. It is to be understood that the inacces~
inclined plane member 30. As may be seen in FIG, III
sible point to be displaced in a desired direction may be
the wedge 30 need not be machined from a single piece
the cam member itself. That is, the inclined plane sur
of stock but may instead be press formed from a pre
cut single sheet of metal. The structure shown in FIG. 45 face may bear directly against the rear corner of the
cabinet.
III is advantageously utilized because of the low cost of
In summary, there has been illustrated and described
production and low cost of material. In any event, any
apparatus
for independently moving two points with
suitably produced member having an inclined plane sur
face may be utilized to perform the teachings of this 50 respect to each other by manipulation of the apparatus
in the vicinity of one of the points. The apparatus com~
invention.
prises a wedge member having an inclined plane sur
In the embodiment shown in FIG. I the rounded or cy
face attached to a first of said points, a laterally move
lindrical cam member 40 is most advantageously utilized
since the rounded surface of the cam member 40 acts as
able member abutting said inclined plane surface of said
a pivotal point for leveling the rear corner of the built-in 55 wedge member, and jack means attached to a second
point to be leveled. Means extending to the vicinity of
device 10. That is, the inclined plane surface 31 makes
the jack means are provided for displacing the laterally
only tangential contact with the cam piece or member 40.
moveable member. The jack means or vertically ad
Therefore, a wedge member 30 may be permanently se
justable means has a lateral guide extension adapted to
cured to the recess member 11 without fear of stressing
guide the movement of the laterally moveable member.
the entire length of the recess member 1‘1 because of any 60 The displacing member is rotatably mounted in said
torque action due to leveling front and rear corners to
guide extension adjacent the jack means. The displac
`different heights on an uneven surface. Since the leveling
ing member and the laterally moveable member have
male and female screw threads which cooperate when
apparatus for the rear corner may act as a pivot there
the displacing member is rotated to cause lateral move
will be no torque stress throughout the length of the re~
65 ment. Although not shown or described herein it is to
cess member 11.
be understood that any other displacing member may
Referring to FIG. IV there is shown a substantially
identical leveling apparatus in which changes have been
made only in the rear corner leveling. An inclined plane
be utilized in the place of the bolt 50 for causing lateral
movement of any laterally moveable member adapted
member 70 is shown abutting and/ or attached to the rear 70 for use in this invention. The jack means may com
prise as described hereinbefore a boss having female
`corner point to be leveled, The second inclined plane
member 80 is shown attached by means of female screw
threads to the displacing member or bolt 50. When the
bolt 50 is rotated the lower wedge member Si) is moved
laterally, vertically displacing the upper wedge member 75
screw threads formed therein, a stud having a bearing
end and a screw threaded end and seat means for receiv
ing the Ibearing end of the stud. »
In conclusion it is pointed out that while the illustrated
3,071,887
5
6.
example constitutes a practical embodiment of my inven
tion, I do not limit myself to the exact details shown,
remote points with respect to each other comprising, in
since modiíication of the same may be varie-d without
departing from the spirit of this invention.
~ Having described the invention, I claim:
‘ 1. Apparatus Ifor independently moving two points with
respect to each other by manipulation of said apparatus
in the vicinity of one of said points comprising, incom
bination; a wedge member, having an inclined plane sur
face, attached to a tirst of said points; a laterally movable
member abutting said inclined plane surface of said wedge
member; jack means attached to sai-d second point; means
extending to the vicinity of said jack means for displac
«ing said laterally movable member; the displacement of
said laterally movable member moving said first point
only and the operation of said jack means moving said
second point on'ly.
2. Apparatus for independently moving two points
combination; jack means attached to a iirst of said two
points; a thrust member abutting against a second of said
two points; said thrust member having an inclined plane
surface; a displacing member journaled in said jack means
adapted to cooperate with said thrust member to move said
second point to a desired position.
7. Leveling apparatus for independently moving two
remote points with respect to each other comprising, in
combination; jack means attached to a iirst of said two
points; a thrust member abutting against a second of said
two points; said thrust member having an inclined plane
surface; a displacing member journaled in said jack means
adapted to cooperate with said> thrust member to move
said secondI point to a desired position; said jack means
having a lateral extension to guide movement of said
thrust member.
'
8. Leveling apparatus for independently moving two
with respect to each other by manipulation of said ap»
remote points with respect to each other comprising, in
paratus in the vicinity of one of said points comprising, 20 combination; jack means attached to a ñrst of said two
points comprising a boss'having female screw threads
in combination; a wedge member, having an inclined
formed therein, a stud having a bearing end and a screw
plane sur-face, attached to a ñrst of „said points; a lateral
ly movable member abutting said inclined plane surface
threaded end, and seat means for receiving said bearing
end of said stud; a thrust member abutting against a sec
of saidA wedge mem-ber; jack means attached to said
second point; said jack means having a lateral guide ex 25 ond of said two points; said thrust‘member having an in
tension adapted to guide the movement of said laterally
clined plane surface; a displacing member journaled in said
jack means adapted to cooperate with said thrust member
movable member; a displacing member extending to the
to move said second point to a desired position.V
vicinity `of said jack means adapted to move said lateral
>9. Leveling apparatus for independently moving two re
ly movable member; the displacement of said lateral‘ly
movable member moving said first point only and the 30 mote points with respect to each other comprising, in comn
operation of said jack means moving said second point
bination; jack means attached to a first of said two points;
only.
an inclined plane member; a cam member registering with
3. Apparatus for independently moving .two points with
respect to each other by manipulation of said apparatus
said inclined plane member; one of said inclined plane
and said cam members abutting a second of said two
in the vicinity of one of said points comprising, in com 35 points; a displacing member attached to said inclined
plane member or cam member not» abutting said second
bination; a wedge member having an inclined plane
point; said displacing member and the member attached
surface attached to a iirst of said points; a laterally mova
thereto being adapted to cooperate with said member
ble member abutting said inclined plane surface of said
abutting said second point to move said second point.
wedge member; jack -means attached to said second point;
l0. Leveling apparatus for independently moving two
said jack means having a lateral gui-de extension adapted 40
remote points with respect to each other comprising, in
to guide ythe movement of said laterally movable mem
combination; jack means attached to a Iirst of said two
ber; a displacing member extending to the vicinity of
points; an inclined plane memebr; a cam member register
said jack means adapted to move said laterally movable
ing with said inclined plane member; one of said inclined
member; said displacing member being rotatably mount-V
plane and said cam members abutting a second of said two
ed in said guide extension adjacent said jack means.
points; a displacing member, journaled in said jack means,
4. Apparatus for independently moving two points with
respect to each other by manipulation of said apparatus
attached to said inclined plane member or cam member
not abutting said second point; said displacing member
`in the vicinity of one of said points comprising, in com
and the member attached thereto being adapted to co
bination; a wedge member having an inclined plane sur
face attached to a first of said points; a laterally movable 50 operate with said member abutting said second point to
move said second point.
member abutting said inclined plane surface of said wedge
ll. Leveling apparatus for independently moving two
member; jack means attached to said second point; said
remote points with respect to each other comprising, in
jack means having a lateral guide extension adapted to
combination; jack means attached to a ñrst of said two
i guide the movement of said laterally movable member; a
displacing member extending to the vicinity of said jack 55 points; an inclined plane member; a cam member regis
tering with said inclined plane member; one of said in
means adapted to move said laterally movable member;
clined plane and said cam members abutting a second of
said displacing member being rotatably mounted in said
said two points; a displacing member, journaled in said
guide extension adjacent said jack means;'said displacing
jack means, attached to said inclined plane member or
member and said laterally movable member having male
and female screw threads which cooperate when said 60 cam member not abutting said second point; said displac
ing member and the member attached thereto being
displacing member is rotated to cause said lateral move
adapted to cooperate with said member abutting said sec~
ment.
ond point to move said second point; said jack means
5. Apparatus for independently moving two points with
having a lateral extension adapted to guide movement of
respect to each other by manipulation of said apparatus
in the vicinity of one of said points comprising, in com 65 the member attached to said displacing member.
l2. Leveling apparatus for independently moving two
bination; a wedge member having an inclined plane sur
remote points with respect to each other comprising, in
face attached to a ñrst of said points; a laterally movable
combination; jack means attached to a first of said two
member abutting said inclined plane surface of said
points; an inclined plane member; a cam member regis
wedge member; jack means attached to said second point
comprising a boss having female screw threads formed 70 tering with said inclined plane member; one of said in
clined plane and said cam members abutting a second of
therein, a stud having a bearing end and a screw threaded
said two points; a displacing member, journaled in said
end, and seat means for receiving said bearing end of said
stud; means extending to the vicinity of said jack means
jack means, attached to said inclined plane member or
for displacing said laterally movable member.
cam member not abutting said second point; said dis
6. Leveling apparatus for independently moving two 75 placing member and the member attached thereto being
3,071,887
8
adapted to cooperate with said member abutting said sec.
ond point to move said second point; said jack means hav
ing a lateral extension adapted to guide movement of the,
member attached to said displacing member; said lateral
extension adapted to keep said inclined plane and said
cam members in registration.
13. Leveling apparatus for independently moving two
remote points with respect to each other comprising, in
plane surface registering with the other member; one of
said ñrst and second members abutting said second point;
one of said 4iirst and second members being ñxed in place
while the other of said members is displaceable; and
means extending to the vicinity of said extensible-retract
ible means for laterally displacing the displaceable one
of said members whereby the displacement moves said
second point only.
15. Apparatus as defined in claim 14 wherein said ex
combination; jack means attached to a ñrst of said two
points comprising a boss having female screw threads 10 tensible-retractible means has attached thereto a lateral
guide extension adapted to maintain the registration of
formed therein, a stud having a bearing end and a screw
said iirst and second members.
threaded end, and seat means for receiving said bear
_16. Apparatus as deñned in claim 14 wherein said ex
ing end of said stud; an inclined plane member;
tensible-retractible means has a base means attached
a cam member registering with said inclined plane
thereto and said displacing means comprises a bolt having
member; one of said inclined plane and said cam members
one end attached to said displaceable member by screw
abutting a second of said two points; a displacing member
thread means and the other end journaled in said base
attached to said inclined plane member or cam member
means; said bolt having7 a thrust collar secured theretov
not abutting said second point; said displacing member
adapted to bear against said base means.
and the member attached thereto being adapted to co
operate with said member abutting said second point to 20
move said second point.
14. Apparatus for independently moving two remote
points with respect to each other by manipulation of said
apparatus in the vicinity of one of said points comprising,
in combination; eXtensible-retractible means abutting a
References Cited in the file of this patent
UNITED STATES PATENTS
335,282
2,544,822
Graves ______________ __ Feb. 2, 1886
Brown ______________ _.. Mar. 13, 1951
iirst of said two points for moving said first point only;
2,803,510
Carbary __________ __1-- Aug. 20, 11957
means for moving a second of said two points including
ñrst and second members, one of which has an inclined
2,828,578
McCabe ______________ .__ Apr. l, 1958
2,932,122
Matter __________ __-____ Apr. l12, 1960
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