Apparatus for lifting and moving an article

The present invention is an apparatus that can be operated by one person to move an article such as a pool table, vending machine, and the like, from place to place over a floor surface. The apparatus is made of a planar base and planar platform with a structure for slidably moving the apparatus across the floor. The apparatus includes a mechanism for pivotally connecting the base and platform attached at opposing sides of the apparatus. The pivotal connecting mechanism is operable to raise and lower the platform relative the base to selectively move the apparatus between a retracted position and an elevated position. The invention further provides a method of moving an article using the apparatus. In use, an operator positions the apparatus in the retracted position underneath the article and pushes downward on the handle of the movement actuating structure to elevate the platform which then contacts the article and raises it off the floor. The article is then moved to a new location, and the platform lowered to place the article onto the floor.

FIELD OF THE INVENTION 
This invention relates generally to an apparatus for lifting and moving a 
large, heavy object such as a pool table, vending machine, pinball game 
table, and the like, across a floor surface. 
BACKGROUND OF THE INVENTION 
Large articles such as pool tables, air hockey tables, football tables, 
vending machines and the like, are often provided in commercial 
establishments. These articles must be moved from time to time, for 
example, when cleaning, recarpeting or refinishing a floor, rearranging 
the room or remodeling the establishment. These articles are large, heavy 
and rather awkward to move. However, it is often impractical and costly to 
hire professional movers to move such articles. 
Oftentimes, pool tables and other large articles are moved by a number of 
persons who are positioned at the corners and sides of the article and 
then manually lift and move the article to a desired location. There is a 
danger, however, that the article may be tipped or dropped during moving, 
resulting in damage to the article as well as the floor. Additionally, a 
person may become injured due to the weight of the article and their 
general lack of skill in moving such large articles. 
In an attempt to overcome such drawbacks, dollies have been developed for 
moving various types of articles and furniture. One such device is a 
furniture dolly made of a steel or wood frame approximately two feet 
square and four inches high, with casters at each corner of the frame. To 
move an article such as a pool table using that device, two or more people 
tip the pool table onto its side, place the table onto the dolly, and roll 
the table to a new location. The table would then be tipped back onto its 
legs into a normal standing position. 
A drawback of that device is that several people are needed to tip the 
article onto its side and place it onto the dolly. With a pool table, if 
proper care is not taken during tipping, the article may be accidentally 
dropped and damaged. Also, if the table is tipped at too sharp an angle, 
the feet of the table may become damaged and/or the level of the slate may 
become altered. 
Other devices have been described for moving large articles that eliminate 
the need for tipping the article to place it on the dolly. One such device 
is made with a hydraulic jack welded at its base to a steel plate with 
casters attached to the bottom surface for rolling the device across a 
floor. At its other end, the jack is welded to a steel plate for 
contacting and lifting an article such as a pool table. In use, the device 
is placed under the table, the jack is actuated to vertically raise and 
lift the table off the ground, and the table is then rolled to its desired 
location. There, the jack is again actuated to vertically lower the table 
onto the floor, and the dolly is then removed. A dolly of this type is 
described, for example, in U.S. Pat. No. 4,331,324 for moving a pinball 
game table. 
A drawback of this device is the instability of the article during 
movement. Several people are needed to balance the article on the 
contacting plate and maintain the article in that position during the 
move. Another drawback is that oftentimes a person must position himself 
under the table or other article to manually actuate the jack for 
contacting the plate with the article and raising the article above the 
floor. This lends itself to the risk of injury to the person. Also, if a 
hydraulic jack is used, there may be leakage of hydraulic fluid that may 
cause damage to floors and/or create a safety hazard for slipping. 
U.S. Pat. No. 5,125,626 describes a dolly for moving a pool table that may 
be operated by one person. The dolly is made of a rectangular frame 
supported on four wheels, and an elevating platform that is raised and 
lowered by means of mechanical jacks positioned at opposite sides of the 
frame. The dolly is rolled beneath the pool table and the platform is 
brought into contact with the table by raising each of the jacks. A jack 
is raised by stepping on an associated lever with a relatively low force 
and short stroke. The jacks are individually operated by a user so that 
only a portion of the weight of the table is lifted at a time. Once raised 
off the floor by the platform, the table may be moved from one place to 
another. 
A drawback of this device is that each of the individual jacks must be 
separated actuated to bring the platform into contact with the table, and 
to raise and lower the table. Also, the table is not lifted vertically off 
the floor. Rather, once the dolly is in place underneath the article, the 
jacks on one side and then the jacks on the other side are actuated. As a 
result, the pool table becomes tipped during lifting which makes it 
unstable on the dolly and may also alter the level of the slate. 
Therefore, an object of the invention is to provide an apparatus for moving 
a heavy article from place to place over a floor surface that is easily 
and safely operable by a single person. Another object is to provide an 
apparatus for moving an article that will maintain the article in a stable 
position while being lifted onto the apparatus and moved. Another object 
is to provide an apparatus that is portable and detachable from the 
article being moved. 
SUMMARY OF THE INVENTION 
These and other objects are achieved by the present invention which is 
directed to an apparatus for moving an article such as a pool table, 
vending machine, and the like, from place to place over a floor surface, 
and a method of moving an article using the apparatus. 
The apparatus is made of a pivotally connected planar base and planar 
platform. The base and platform are made of a generally rectangular-shaped 
frame oriented in a generally horizontal plane relative the floor. The 
base includes means for slidably moving the apparatus across the floor. 
The apparatus includes means for pivotally connecting the base and platform 
attached at opposing sides of the apparatus. The pivotal connecting means 
is operable to raise and lower the platform relative the base to 
selectively move the apparatus between a retracted position and an 
elevated position. In the retracted position, the platform is in close 
proximity to the base with the pivotal connecting means oriented at an 
acute angle relative the horizontal plane of the base and platform. In the 
elevated position, the platform is maintained at a distance above the base 
with the pivotal connecting means oriented at an obtuse angle relative the 
horizontal plane of the base and the platform. 
At one end of the apparatus is attached means for actuating movement of the 
base and the platform through the pivotal connecting means. The movement 
actuating means is attached to both the platform and the base, and 
operable to selectively raise and lower the platform relative the base by 
moving the pivotal connecting means between its acute angle orientation 
and its obtuse angle orientation. In a preferred embodiment, the movement 
actuating means is an L-shaped member attached to an end of both the 
platform and the base with the lower extension projecting away from the 
base. The lower extension is preferably adapted for receiving a handle 
that may be releasibly inserted into or onto the lower extension member, 
and used for actuating movement of the apparatus to raise and lower the 
platform and the article to be moved. 
In the retracted position, the apparatus is adapted to be positioned 
underneath the article to be moved which has upstanding support legs. It 
is understood that the present apparatus may also be used to move an 
article without legs merely by lifting the article onto the platform. In 
the elevated position, the platform of the apparatus is adapted for 
contacting and elevating the article off the floor such that the article 
may be slidably moved from place to place over the floor surface in a 
stable manner. 
In use, the apparatus in the retracted position is positioned underneath 
the article to be lifted, and the operator pushes downward on the handle 
of the movement actuating means to elevate the platform which then 
contacts the article and raises it off the floor. Additional force is 
applied to the handle to move platform past the point of being centered 
over the base and to an at-rest position in which the platform rests upon 
the end of the connecting member of the pivotal connecting means. The 
angle of the connecting member between the platform and the base, and the 
weight of the platform on the connecting member, function together to lock 
the platform into place in the elevated position. A safety pin may be 
inserted into an aperture in the bracket member of the base to lock the 
first extension member of the movement actuating means into a locked 
position adjacent the end of the base. The handle is then removed and, 
with the platform locked in the elevated position and the article stably 
balanced on the platform, the operator pushes the apparatus and the 
article to the desired location. At the new location, the article is 
lowered to the floor by reinserting the handle into the movement actuating 
means and removing the safety pin from the bracket member. The handle is 
then raised by applying an upward force which causes the platform to be 
lowered and the article to be placed onto the floor surface. With the 
apparatus in the retracted position, it may then be pulled out from under 
the article and used elsewhere. 
The present apparatus overcomes the drawbacks of other moving devices 
through the provision of a lifting device that can be operated by a single 
person in one movement without assistance from others. The apparatus is 
useful for moving a variety of articles including, for example, a pool 
table, vending machine, pinball game table, desk, dining table, dresser, 
cabinet, credenza, bureau, among other articles. Advantageously, the 
apparatus vertically lifts the article in one movement and maintains the 
article on the raised platform in a properly balanced alignment so that 
the article may be moved by one person from place to place in a stable 
manner.

DETAILED DESCRIPTION OF THE INVENTION 
The present invention provides an apparatus for lifting and moving an 
article such as a pool table, vending machine, pinball game table, among 
others, from place to place, for example, across a floor or to a different 
location in a building. 
Referring now to the drawings, FIGS. 1-3 are illustrations of a first 
embodiment of the apparatus for lifting and moving an article such as a 
pool table, in accordance with the invention, designated generally by the 
numeral 10. As shown in FIG. 1, the apparatus is in the retracted 
position. In general, apparatus 10, includes base 12, platform 14, means 
18 for pivotally connecting the base and the platform, means 20 for 
actuating movement of the pivotal connecting means, and means 16 for 
slidably moving the apparatus across the floor surface. 
Base 12 and platform 14 are generally planar and rectangular in shape. As 
illustrated in FIG. 3, base 12 and platform 14 are preferably constructed 
as an open frame. Base 12 includes first and second sides 22,23 in 
opposing parallel arrangement, and first and second ends 24,25 in opposing 
parallel arrangement. Platform 14 includes first and second sides 26,27 in 
opposing parallel arrangement, first and second ends 28,29 in opposing 
parallel arrangement. The apparatus is constructed such that base 12 and 
platform 14 are oriented in a generally horizontal plane, 52,53, 
respectively, relative the floor surface. It is understood that base 12 
and platform 14 may also be constructed as a closed box-like frame with a 
panel (not shown) attached to base 12 along one or both surfaces 31,32, 
and/or with a panel (not shown) attached to platform 14 along one or both 
surfaces 35,36. 
Base 12 and platform 14 are sized to support the article to be moved in a 
stable manner. For example, base 12 and platform 14 may be sized to have 
the same dimensions as illustrated in FIGS. 1-5, or platform 114 may be 
sized larger than base 112, as shown in FIGS. 6-9 with a length greater 
than base 112. It is desirable that base 12 and platform 14 are sized 
about the same to minimize production costs where the article to be moved 
has a solid base or an underside able to support the article to be lifted 
such as a pool table, air hockey table, football table, and the like. It 
is preferred that platform 114 is sized larger than base 112 where the 
article to be moved requires that platform 114 lifts on a structural 
member of the article to be moved, or if the weight of the article 
requires the article to be distributed over a larger area, such as with a 
vending machine, cigarette machine, pop machine, and the like. Base 12 or 
112 may also be sized larger than platform 14 or 114 (not shown). 
Base 12 includes means 16 for slidably moving the apparatus from place to 
place across the floor surface. As shown, slidable moving means 16 are 
attached to surface 32 of base 12 at each of the four corners to provide 
maximum stability of apparatus 10 and the article during movement. As few 
as three slidable moving means 16 may be positioned at any location along 
base 12 which provides the desired stability to apparatus 10 during use. 
In general, slidable moving means 16 suitable for use according to the 
invention are those dimensioned and constructed to support the weight of 
the article being moved to slidably move the article from one location to 
another. Examples of such slidable moving means 24 include wheels, 
casters, rollers, skids and the like. Preferably, slidable moving means 16 
is detachable from base 12. Optionally, apparatus 10 may include means 
(not shown) for locking slidable moving means 16 to prevent movement and 
maintain apparatus 10 at a substantially stationary location on the floor. 
Platform 14 is connected to base 12 by a plurality of pivotal connecting 
means 18. As shown in FIGS. 4a-4d, pivotal connecting means 18 is made of 
oppositely disposed first and second members 41,42 in opposing parallel 
arrangement being coupled together by connecting member 43. As shown in 
FIG. 41-4d, connecting member 43 is a plate-like member oriented at an 
angle 49 relative longitudinal axis 46 of members 41,42. Apertures 45 
provided in members 41,42, are adapted for receiving means 44 for pivotal 
attachment of pivotal connecting means 18 to apparatus 20, for example, 
bolts, pins, and the like, as shown in FIG. 1. 
Pivotal connecting means 18 are attached to both base 12 and platform 14. 
Preferably, apparatus 10 includes four pivotal connecting means 18 
attached to sides 22,23 of base 12 and sides 26, 27 of platform 14 to 
provide an eight-point suspension of platform 14 in the elevated and 
at-rest position above base 12. Pivotal connecting means 18 are suitably 
dimensioned and constructed of a suitably strong and rigid material such 
as steel, aluminum, steel casting and the like, to effectively raise and 
lower platform 14 relative base 12, and to stably support platform 14 and 
the lifted article above base 12 during use of apparatus 10 to move the 
article. As shown in FIG. 3, pivotal connecting means 18a is attached to 
first sides 22,26 of base 12 and platform 14, respectively, and pivotal 
connecting means 18b is attached to second sides 23,27 of base 12 and 
platform 14, respectively. More particularly, member 41 of pivotal 
connecting means 18 is secured to outer surfaces 33,37 of base 12 and 
platform 14, and member 42 is attached to inner surfaces 34,38 of base 12 
and platform 14, respectively. 
As shown in FIGS. 1-3, movement actuating means 20 is an L-shaped member 
made of first (upper) extension member 61 and second (lower) extension 
member 63. Movement actuating means 20 may be formed as a single 
construction or by welding or otherwise fastening together first extension 
member 61 to second extension member 63 at junction 62 at an about 
perpendicular angle. Optionally, reinforcing member 67 may be attached to 
first extension member 61 and second extension member 63 to provide 
additional structural support at junction 62. 
First extension member 61 is pivotally attached to clasp-like bracket 
members 68a,68b secured to ends 24,28 of base 12 and platform 14, 
respectively, for example, by bolts, adhesive, welding, and the like. In 
particular, extension member 61 is pivotally attached at first end 72 to 
bracket member 68b and at about position 74, which is beyond the midpoint 
of extension 61 toward second end 73, to bracket member 68a on base 12. 
Such pivotal attachment of first extension member 61 may be achieved by 
any suitable means such as bolts, pins, and the like, that will allow 
first extension member 61 to pivot about pivotal attachment means 69a,69b. 
Bracket member 68a on base 12 also includes aperture 70 for removably 
receiving pin 71, or the like, for maintaining first extension member 61 
in a locked position when apparatus 10 is elevated and platform 14 is in 
the at-rest position, as shown in FIGS. 2 and 3. This inhibits movement of 
movement actuating means 20 and platform 14 when apparatus 10 is elevated 
and is in use. 
Second (lower) extension 63 includes means 64 for receiving a rod-like 
handle 66. As shown, handle receiving means 64 is adapted to receive 
handle 66 by insertion of handle 66 into handle receiving means 64, but 
can also be adapted for external attachment of handle 66. The combination 
of movement actuating means 20 with handle 66, and its pivotal attachment 
to apparatus 10, is used to actuate simultaneous movement of base 12, 
platform 14 and pivotal connecting means 18 which in turn causes platform 
14 to be selectively raised and lowered relative base 12 to place 
apparatus 10 in an elevated or retracted position. It is preferred that 
the length of handle 66 is suitable for actuating apparatus 10 by a person 
standing upright on the floor, without the need for positioning himself 
underneath the object and risking possible injury. 
Apparatus 10 is preferably composed of steel, but may also be constructed 
of wood, aluminum, composite material such as graphite polymer and the 
like, steel tubing, or other rigid material capable of supporting the 
article to be lifted. 
To assemble apparatus 10, base 12 and platform 14 as shown in FIGS. 1-3, 
may be fabricated by bending a sheet of steel (80.times.6.5.times.12 
gauge) into a U-shaped strip and then into a rectangular shape, cutting 
away excess material at each of the four corners, and closing the open 
corners using conventional steel fastening techniques. While this 
construction technique is preferred, other similar metalworking techniques 
would be sufficient. Although a rectangular-shaped base and platform are 
preferred, it is understood that base 12 and platform 14 may be of any 
desired shape, including for example, square, circular, oval, triangular, 
among others. As shown in FIG. 3, to reinforce the attachment of pivotal 
connecting means 18, plate members 81,82 are optionally, but preferably, 
attached to inner surface 34 of opposing sides 22,23 of base 12, and inner 
surface 38 of opposing sides 26,27 of platform 14 by conventional steel 
fastening techniques. It is preferred that pivotal connecting means 18 is 
made of a rigid material such as wood, aluminum, composite material, steel 
tubing, and the like. 
Pivotal connecting means 18 are attached to base 12 and platform 18 by 
means of bolts or other connecting means 44 that allow for pivotal 
movement. Pivotal connecting means 18 are positioned along the sides of 
base 12 and platform 14 such that, when apparatus 10 is in the elevated 
position, edges 47,48 of connecting member 43 come into contact with 
surfaces 31,36, respectively of base 12 and platform 14, and platform 14 
is maintained in a horizontal plane 53 above base 12 and the article is 
supported in a stable manner without tipping. 
Bracket members 68a,68b are attached to ends 24,28 of base 12 and platform 
14. First extension member 61 of movement actuating means 20 is then 
attached to bracket members 68a,68b by bolts or other pivotal attachment 
means 69a,69b. Finally, casters or other slidable moving means 16 are 
attached to base 12, preferably using a releasable attachment, by methods 
known and used in the art. 
Referring now to FIG. 1, in use, apparatus 10 in the retracted position is 
positioned underneath the article to be lifted. In the retracted position, 
platform 14 is in close proximity to or resting on base 12. Axis 46 of 
pivotal connecting means 18, and axis 76 of extension member 61 of 
movement actuating means 20, are oriented at an acute angle to the 
horizontal planes 52,53 of base 12 and platform 14 and the floor surface. 
As shown in FIGS. 1-3, extension member 63 of movement actuating means 20 
is positioned at a slightly acute angle to extension member 61. As such, 
when extension member 61 is locked in position in bracket member 68a, axis 
77 of extension member 63 is maintained at an angle slightly above the 
horizontal plane of the floor, preferably at about 3.degree.-15.degree. 
above the horizontal, preferably at about 5.degree.-10.degree.. This, in 
turn, helps prevent handle 66 from coming into contact with the floor and 
catching the fingers of the operator between handle 66 and the floor. 
Optionally, handle 66 may also be fabricated to include a slight bend, for 
example, near where it is attached to receiving means 64, at or about the 
end held by the operator, or at a point thereinbetween. 
Once placed at the desired location underneath the article, the operator 
raises platform 14 into contact with the underside of the article by 
exerting a downward force onto handle 66 in the direction of arrow 84. 
This causes first extension member 61 to pivot about its connection at 
69a,69b to bracket members 68a,68b, and pivotal connecting means 18 to 
pivot about connections at 44, in the direction of arrow 86. 
Simultaneously, platform 14 is drawn in the direction of arrow 79 and 
raised away from base 12, as shown in FIG. 2. As platform 14 is raised, it 
comes into contact with and lifts article 96 vertically so that feet 95 
are no longer in contact with the floor, as shown in FIG. 5. Referring 
again to FIG. 2, further downward force on handle 66 in the direction of 
arrow 84 causes first extension member 61 and pivotal connecting means 18 
to further pivot around connecting members 69a,69b and 44, respectively, 
in the direction of arrow 86, until platform 14 is raised to a maximum 
distance from base 12, and then slightly lowered to an at-rest elevated 
position such that connecting member 43 of pivotal connecting means 18 
becomes essentially locked into position between platform 14 and base 12, 
and platform 14 becomes a solid, stable support rigidly held in the raised 
position above base 12. 
With apparatus 10 in the position as shown in FIG. 2, pivotal connecting 
means 18 are oriented at an obtuse angle with axis 46 oriented at an angle 
54 which is past the vertical plane 56 to horizontal planes 52,53 of base 
12 and platform 14, respectively. In that position, connecting member 43 
is oriented at an about 70.degree.-80.degree. angle past a vertical plane 
and positioned such that edges 47,48 are in contact with first (upper) 
surface 31 of base 12 and second (lower) surface 36 of platform 14. As 
such, connecting member 43 functions to limit the extent of travel of 
pivotal connecting means 18 when apparatus 10 is selectively moved from 
the retracted to the elevated position. In the elevated, at-rest position, 
platform 14 settles down upon edge 47 of connecting member 43 and places 
force upon edge 48 in contact with base 12 which locks connecting member 
43 into place between base 12 and platform 14. In a preferred embodiment, 
apparatus 10 includes four pivotal connecting means 18 to provide a 
eight-point suspension of platform 14 in the elevated, at-rest position 
above base 12. This positioning of connecting member 43 in contact with 
base 12 and platform 14, and the force placed upon connecting member 43, 
absent a large counterforce, helps prevent slippage or other movement of 
raised platform 14 during use, and helps stabilize and maintain platform 
14 and the article in the raised position. Preferably, connecting member 
43 is oriented at about 25.degree. in relation to the center line of 
members 41 and 42 to provide maximum clearance when in the retracted 
position and to provide maximum support when in the elevated position. 
This allows pivotal connecting means 18 to rotate approximately 
1.degree.-20.degree. past vertical to come to rest at an about 
70.degree.-80.degree. angle in relation to the parallel planes 52 and 53. 
As depicted in FIG. 3, for additional security against movement of platform 
14, pin 71 may be inserted into aperture 70 of bracket member 68a to 
maintain extension member 61 in a locked position while apparatus 10 is in 
the elevated position. The user then removes handle 66 from apparatus 10, 
and moves apparatus 10 and the article to a new location. 
When the article is properly positioned, the article are lowered to the 
floor. To do so, handle 66 is reinserted into handle receiving means 64 of 
movement actuating means 20, and pin 71 is removed from aperture 70 of 
bracket member 68a. Handle 66 is then raised by applying an upward force 
opposite the direction of arrow 84. This causes first extension member 61 
and pivotal connecting means 18 to pivot in a direction opposite arrow 86, 
which in turn causes platform 14 to be lowered to its starting position as 
shown in FIG. 1, and the article to be placed onto the floor surface. 
Apparatus 10 may then be pulled out from under the article and used 
elsewhere. 
A single apparatus 10 is adapted to lift and move an article such as a pool 
table 96 that weighs about 450-1200 lbs, preferably about 600-800 lbs. To 
lift a typical pool table of about 600-800 lbs using apparatus 10, about 
50 lbs of downward force on the handle is required. For larger and/or 
heavier articles, it is preferred that two apparati according to the 
invention are strategically positioned underneath the article, for 
example, one apparatus at each end of the article. 
In a preferred embodiment, apparatus 10 for moving an about 
92".times.54".times.32" (l.times.w.times.h) pool table of about 600-800 
lbs would be constructed out of about 12 gauge steel sheeting, with each 
of base 12 and platform 14 about 20".times.20".times.3.5".times.15/8" 
(l.times.w.times.h.times.breadth); pivotal connecting means 18, about 
7".times.1".times.2" (l.times.w.times.b) with each of members 41,42 about 
7".times.1".times.10 gauge and connecting member 43, about 
3.875".times.1.75".times.10 gauge; movement actuating means 20 with first 
(upper) extension member 61, about 10".times.1".times.1", second (lower) 
extension member 63, about 8".times.1.25".times.1.25", and handle 66, 
about 48".times.1".times.1". Such a pool table-moving apparatus 10 would 
be about 131/2" in height when in the retracted position and about 163/4" 
in height when in the extended position. Apparatus 10 is relatively light 
in weight, preferably about 50-60 lbs. Preferably, apparatus 10 may be 
lifted and carried by 1-2 persons. 
A second embodiment of-the apparatus of the invention is shown in FIGS. 
6-9, and designated generally as 110, is designed for moving a vending 
machine or other like article having a low clearance height with upright 
legs of about 51/2 to about 71/2 inches. 
Like apparatus 10, apparatus 110 includes base 112, platform 114, means 118 
for pivotally connecting the base and the platform, means 120 for 
actuating movement of the pivotal connecting means, and means 116 for 
slidably moving the apparatus across the floor surface. To facilitate 
placement of apparatus 110 underneath a vending machine having low floor 
clearance, the overall height of apparatus 110 and various components are 
reduced in size. In a preferred embodiment of apparatus 110 for moving a 
vending machine with a base to floor clearance of about 5.5-7 inches, the 
height of each of base 112 and platform 114 is about 1-inch rather than 
31/2 inches as in base 12 and platform 14, the pivotal connecting means 
118 are shortened from 7 inches to about 4.5 inches, and the size of the 
casters or other slidable moving means 116 are reduced from 5 inches to 
about 4 inches. Also, the mounting of slidable moving means 116 may be 
offset, for example, by means 194 for insetting slidable moving means 116 
for example as a steel box as depicted in FIGS. 6-8. 
As depicted in FIG. 6, apparatus 110 is shown as including cross member 191 
connected to sides 122,123 of base 112, and cross member 192 connected to 
ends 128,129 of platform 114. Base 112 is further shown as including 
insetting means 194a,194b with plate members 187a,187b and end members 
188a,188b. Insetting means 194a,194b are each connected to ends 124,125. 
Slidable moving means 116, preferably in the form of casters, are mounted 
on plate members, 187a,188b, as illustrated in FIGS. 6-8. Cross members 
191,192 and insetting means 194 are attached to base 112 and/or platform 
114 by conventional metal fastening techniques such as welding, gluing, 
riveting, or the like. 
In a preferred embodiment, apparatus 110 for moving an about 
70".times.38".times.30" vending machine of about 700-800 lbs would be 
constructed of about 0.083" wall thickness, 1'.times.1" square tubing, 
with base 112, about 26".times.22".times.1".times.1" 
(l.times.w.times.h.times.b); platform 114, about 
32".times.22".times.1".times.1"; pivotal connecting means 118, about 
4.5".times.1".times.1.375" (l.times.w.times.b) with each of members 
141,142, about 4.5".times.1".times.1/8-2/8"; movement actuating means 120 
with first (upper) extension member 161, about 5".times.1".times.1" 
(1/8-2/8 thickness), second (lower) extension member 163, about 
3".times.11/2".times.11/2", and handle 166, about 38".times.1".times.1". A 
preferred vending machine-moving apparatus 110 would be about 55/8" in 
height when in the retracted position and about 75/8" in height when in 
the extended position. Apparatus 110 is relatively light in weight, 
preferably about 40-50 lbs. 
To move an article such as a vending machine that has a height greater than 
its width or length, platform 114 is preferably sized with a length and/or 
width greater than base 112, such that, when vending machine 196 rests 
upon platform 114, ends 128,129 of platform 114 are in contact with the 
edge of opposing sides 198a,b of base 197 of vending machine 196, as shown 
in FIG. 9. This contact between platform 114 and sides 198a,b of base 197 
helps maintain vending machine 196 in a stable position on apparatus 110 
during moving. 
In use, as with apparatus 10, apparatus 110 in the retracted position is 
slid underneath vending machine, designated generally as 196, or other 
like article, as shown in FIG. 9. The operator then pushes down on handle 
166 to elevate platform 114 in contact with the underside of vending 
machine 196, to raise vending machine 196 so that feet 195 are no longer 
in contact with the floor, and to position platform 114 in the at-rest 
position. A pin (not shown) is then inserted into aperture 170 of bracket 
member 168a to lock first extension member 161 in place adjacent to base 
112. The operator then moves apparatus 110 with the article thereon to the 
desired location. 
Advantageously, the apparatus of the present invention provides vertical 
lifting of a pool table, vending machine or other article which eliminates 
damage caused to the article or the floor from dragging the legs and 
adjustable feet across the floor, or tipping or dropping of the article. 
Because the legs of the article do not contact the floor during the move, 
use of the present apparatus also eliminates the need for re-leveling 
adjustable feet such as those found with a pool table or vending machine. 
In addition, the present apparatus eliminates problems with balancing and 
moving an article such as a pool table or pinball game table, as found 
with other mechanical devices that use a plate attached to a jack. Also, 
the present apparatus is relatively light and portable, and can be shipped 
cross-country via normal courier service. Also, since the apparatus is not 
permanently attached to the article to be moved, it can be used for moving 
several articles at one location. 
Thus, the invention has been described with reference to various specific 
and preferred embodiments and techniques. However, it should be understood 
that many variations and modifications may be made while remaining within 
the spirit and scope of the invention, and the invention is not to be 
construed as limited to the specific embodiments shown in the drawings.