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Патент USA US3096808

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July 9, 1963
L. EQPUGSLEY‘
3,096,798
ELECTRICAL MULTIPURPOSE SHOP TOOL
Filed June 6, 1960
5 Sheets-Sheet l
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INVENTOR.
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July 9, 1963
|_. E. PUGSLEY
3,096,798
ELECTRICAL MULTIPURPOSE SHOP TOOL
Filed June 6, 1960
5 Sheets-Sheet 2
134 .ZAWQEA/CE £1.’ ‘1905.525 ,
INVENTOR.
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July 9, 1963
L. E. PUGSLEY
3,096,798
ELECTRICAL MULTIPURPOSE SHOP TOOL
Filed June 6, 1960
5 Sheets-Sheet 3
LAWQEA/C‘E
P0631. EZ,
INVEN TOR.
July 9, 1963
L. E. PUGSLEY
3,096,798
ELECTRICAL MULTIPURPOSE SHOP TOOL
Filed June a, 1960
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5 Sheets-Sheet’ 4
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INVENTOR.
.LAWREA/CE 15’. P065413,
BY MS 4rram/eg5.‘
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July 9, 1963
|_. E. PUGSLEY
3,096,798
ELECTRICAL MULTIPURPOSE SHOP TOOL
Filed June 6. 1960
5 Sheets-Sheet 5
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United States Patent 0
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3,096,798
Lawrence E. Pugsley, Box 656, RR. 1, Escondido, Calif.
Filed June 6, 1960, Ser. No. 34,163
25 Claims. (Cl'. 144-1)
The present invention relates generally to the power
tool art and more particularly to a novel multipurpose
power tool of the type which may be used as a hand or
Patented July 9, 1963
2
1
ELECTRICAL MULTIPURPOSE SHOP TOOL
3,096,798
,
can easily and quickly convert the device from one type
of tool to another.
A further object is to provide a novel power member
with a work-tool holder and a support therefor whereby
the position of the work-tool holder can be easily and
quickly adjusted both axially and laterally relative to the
support. More particularly, it is an object to provide
such power member and support therefor whereby the
power member and its work-tool holder can be moved
bench power tool in a home workshop.
10 axially of the supporting housing or stand as in drilling
operations, and can also be adjusted in a lateral direction
Brie?y stated, the device includes a basic unit con
taining front and rear plate members positioned in paral
lel spaced relationship and having an electrically operated
power unit with rotatable work-tool supporting means
mounted on the rear plate member for transverse move
ment toward and away from the front plate member.
The latter member is provided with a relatively large
work-tool passageway adjacent the center thereof and a
number of rod-receiving apertures adjacent the workatool
passageway, the apertures having clamping means asso
:ciated therewith for maintaining the rods inserted therein
in predetermined position relative to the plate member.
When a drill bit is mounted in the work-tool supporting
as when a saw blade or the like is mounted in the work
tool holder.
Further objects and advantages of the present invention
will be apparent from the following detailed description,
reference being had to the accompanying drawings where
in preferred embodiments of the present invention are
shown.
In the drawings:
FIG. 1 is a perspective view of the power unit and its
supporting sleeve member shown in spaced-apart relation
ship;
FIG. 2 is a perspective view (on a reduced scale) of an
alternative power unit and supporting sleeve construction;
FIG. 3 is an enlarged side elevational view, partially in
ever, the main utility of the present invention resides in 25
cross
section, showing a power unit mounted in its sup
the use of several vsimple auxiliary members with the
porting sleeve;
basic unit, either singly or in combination, whereby the
means, the :device is usable as a hand power drill. How
assembled unit can function as one of many different
FIG. 4 is a vertical sectional view taken on the line
4-4 in FIG. 3;
types of hand and bench-type power tools. These aux
FIG. 5 is an enlarged fragmentary sectional view of the
iliairy members include a rvise member with guide rods 30
which extend into the apertures; a table which can be
removably clamped to either the basic unit or to the
detent mounted in the wall of the power unit as shown in
the right-hand side of FIG. 4;
FIG. 6 is a perspective view of the device assembled
and positioned for use in drilling holes in a vertical sur
basic unit, with the vise member, and with the table.
As is well known in the industry, there is a relatively 35 face;
FIG. 7 is a perspective view of the device positioned
large and consistent demand for woodworking power
for use as a drill press;
tools which can be used in the home workshop by ama
FIG. 8 is a perspective view of the device assembled
teur carpenters, cabinet makers and hobbyists. Unfor~
and positioned for use in drilling a series of laterally
tunately, at the present time the main deterrent‘ to a
spaced holes in an elongated workpiece;
vise member; and a rip fence which ‘can be used with the
more widespread usage and sale of home workshop power
tools is the fact that many different types of tools or
FIG. 9 is a perspective view of the device assembled
and positioned for use as a table saw;
pieces of equipment are required to provide an adequate
FIG. 10 is an enlarged fragmentary vertical sectional
ly equipped shop, and the total cost of the plurality of
view taken on the line 10—10 in FIG. 9';
individual tools or pieces of equipment is more than 45
FIG. 11 is a fragmentary side elevational view taken on
many persons can pay or are wiling ‘to pay. Another
the line 11—11 in FIG. 10;
disadvantage occasioned by the use of a plurality of such
FIG. 12 is a perspective view of the device assembled
tools is that they occupy a relatively large area or work
for use as a hand drill so that it may be used in drilling a
space, and many homes do not contain the necessary
series of holes a predetermined distance from the edge
space to accommodate them.
50 of a large workpiece;
It is an object of the present invention, therefore, to
FIG. 13 is a side elevational view of the device assem
provide a novel multipurpose power tool which will
bled and positioned for use as a saber saw with an adjust
perform the functions of a large number of individual
hand and bench-type power tools now used in the con
ventional amateur’s woodworking shop. More particu 55
larly, it is an object to provide such a multipurpose power
tool which can be used as a drill press7 a hand power
saw, a table saw, a saber saw, a jigsaw, a router, a bench
grinder and sander-and in numerous other capacities.
More particularly, it is an object to provide a device which
includes a single power source and a stand or support
therefor, and several simple attachments which can be
able stop for ripping a strip of predetermined width from
an elongated workpiece;
7 FIG. 14- is a front elevational view taken on the line
14—14 in FIG. 13;
FIG. 15 is a perspective view of the device assembled
and positioned for use as a grinder or sander; and
FIG. 16 is a perspective view of the device assembled
and positioned for use as a router.
Referring to the drawings more particularly by refer
perform the woodworking functions of a vast array of
ence numerals, 20 indicates a power unit adapted to be
supported in ‘a framework 22 which includes a mounting
with a minimum'amount of maintenance and which is sim
electrical motor 36 with a splined shaft 38 which drives
ple in design and operation whereby amateur craftsmen
a high-speed internally threaded socket 40‘ and a low
used therewith so that the assembled unit can be used to
sleeve 24. As shown in FIGS. 1 through 5, the power
presently known power tools.
65 unit 20 includes a cylindrical housing 26 which has a
Another object is to provide a novel multipurpose pow
handle assembly 28 fastened to one end thereof, said as
er tool which is relatively simple in design but of rugged
sembly containing a handle 30 provided with a switch but-7
and dependable construction. More particularly, it is an
ton 32 and diametrically opposed recessed male elec
object to provide such a device which is so rugged and
strong that it will have a relatively long life expectancy 70 trical sockets 34. Mounted within the housing 26 is an
3,096,798
4
speed internally threaded socket 42 through gears 44, 46
tubular sockets 106v which extend inwardly and which
and 48, said sockets being adapted to receive a conven
tional J acob’s chuck 50. A plate 52 covers the operating
end of the power- unit and is fastened to the housing 26
by long screws 54 which are threaded into a partition
two apertures 110 (FIG. 9) adjacent the bottom edge
wall 56.
In the embodiment shown in FIG. 1, the housing 26 is
provided with diametrically opposed ball-‘like detents 58
contain thumb screws 108‘.
In like manner, there are
of the front plate member which have tubular sockets 112
and thumb screws 114 (FIG. 6) associated therewith.
Two tapped holes 115 (FIG. 8) are provided adjacent the
lower edge of the large circular opening 100‘ for use in
supporting a saber saw as will be described more fully
hereinafter. The outer face of the front plate member
20 in the supporting sleeve 24. Turning brie?y to a con 10 78 contains a vertically extending V-sh-aped groove 116
(FIGS. 4 and 5) for use in positioning the power unit
sideration of the sleeve 24 as shown in FIG. 1, one end
thereof is provided with diametrically opposed mounting
tabs 60 which contain screw-receiving apertures 62 ‘and
which bisects the circular opening 100. Formed in the
left-hand edge of the front plate member are ‘an upper
pin-receiving recess 118 and a lower pin-receiving recess
120, and formed in the right-hand edge thereof are- a
the other end is formed or cut on the bias as at ‘64 so
that the power unit 20 can be more easily inserted 15 similarly placed upper pin-receiving recess 122 and a
lower pin-receiving recess 124 (FIG. 15). The left-hand
therein, as will be described more fully hereinafter. Ad
edge of the front plate member also contains an inter
nally threaded recess 126 immediately below the upper
pin-receiving recess 118 for use in adjusting the posi
longitudinally extending grooves 68 which are parallel
with the axis of the sleeve 24 and which terminate at the 20 tion of a table member relative to the supporting frame
work, as will be described more fully hereinafter.
edge 64. It will be apparent that when the power unit
As shown in a number of the ?gures, including FIGS.
20 is inserted in the sleeve 24 the detents ‘53 are ?rst
6 and 7, the device may include a vise member 128 which
positioned in the longitudinally extending grooves 68 and,
comprises a square vise plate 130 having a large circular
if the power unit 20 is inserted far enough into the sleeve,
the detents will pass into and be restrained by the annular 25 opening 132 adjacent the center thereof and a hand slot
134 adjacent what can be considered to be the bottom
groove 66. Thus, the longitudinal grooves 68 guide the
edge as shown in FIG. 6. A vertically extending
movement of the power unit in the axial direction, and,
V-shaped groove 136 is formed in the inner face of the
when the detents 58 are positioned in the annular groove
jacent the end of the sleeve whidh contains the tabs 69
is an inner annular groove 66 which communicates with
66, the power unit 20 can be rotated to vary the position
of the sockets 40 and 42 relative to any ?xed point on
the periphery of the sleeve 24, for a purpose to appear.
Thumb screws 70 extend through the wall of the sleeve
vise plate 130 so as to bisect the vise plate and the circu
lar opening ‘132. Formed in the side edges of the vise
plate adjacent the top thereof are opposed pin-receiving
recesses 138 and 140, and below the recess 140 is an
internally threaded recess 142 similar to the recess 126
24 for holding engagement with the housing 26 to main
previously described. Two guide rods 144 and 146 are
tain the power unit 20 in ‘adjusted position relative to the
sleeve 24.
35 fastened to the inner face of the vise plate 13!) adjacent
the top edge thereof so as to extend perpendicularly
As shown in FIG. 2, the same result can be achieved by
from the plate in a parallel relationship, the guide rods
using a sleeve which contains detents 72 and a power
being spaced-apart a distance equal to the spacing be—
unit which has an annular groove 74 and two longi
tween the tubular sockets 106 and between the tubular
tudinally extending grooves 76 formed in the outer sur
face of the housing.
40 sockets 112 previously described. It is preferable to
have the guide rods of unequal length whereby it is easier
Turning to a consideration of the supporting frame
to insert them in each set of sockets as will be apparent
work 22 (FIG. 6), it includes a front plate member 78
and a rear plate member 80 which are perpendicular to
the axis of the sleeve 24 and are maintained in parallel
‘ when the assembly of the unit is discussed hereinafter.
Turning to a consideration of the operation of the
device, if it is desired to drill holes which are absolutely
82. Obviously, other types of members other than the 45 normal to a ?at surface such as a wall or table top, the
spaced-apart relationship by opposed side panels 81 and
example tubular members or the like. For convenience
vise member 128 may be used with the framework 122
or it may be omitted, depending upon the length of the
drill bit which is to be used in the Iacob’s chuck 50. As
of description, the edges of the plate members upon which.
indicated hereinabove, the chuck 50 may be threaded
rear plate member 80 adjacent the top edge thereof and
front plate member 78 would then be positioned against
panels 81 and 82 could be used for the purpose of sup
porting the plate members in spaced relationship, as for
the device is resting as shown in FIG. 6v will be referred 50 either in the high-speed socket 40 or in the low-speed
socket 42 depending on the type of material in which
to hereinafter as the bottom edges and the sides opposite
the holes are to be drilled. Assuming that a relatively
thereto will be referred to as the top edges.
short drill bit is to be used, the vise member 128 would
Referring to the rear plate member 80, it is provided
not be required and only the power unit 20 and the
with a large opening at the center thereof which receives
the sleeve 24, the latter being secured to the inner face 55 framework 22 would be used. Thus, the chuck end of
the power unit 20 would be positioned on the projecting
of the plate member by screws 84 (FIG. 8) which pass
lip of the edge 64 of the sleeve 24 and the idetents 58
through the screw-receiving openings 62 in the mount
guided into the longitudinally extending grooves 68. The
ing tabs 60. Two upper apertures 86 are located in the
associated therewith are tubular sockets 88 Which are 60 the surface to be drilled and the power unit 20 moved
axially of the sleeve 24 by means of the handle 30. It
fastened to the plate so as to extend toward the front
should be noted that the framework can be supported by
means of the hand slot 98 and that the switch button 32
is in the handle ‘so that the unit is designed for one-man
apertures (not shown) and associated tubular sockets
94 with thumb screws 96 are provided adjacent the bot 65 operation. Because the grooves 76 are parallel with the
axis of the sleeve 24 and the front plate member 78 is
tom edge of the rear plate member 80 (FIG. 8). An
perpendicular to the ‘aforementioned ‘axis, the hole which
elongated hand slot 98 is also contained in the rear
is
‘drilled will ‘also be perpendicular to the front plate
plate member 80 adjacent the bottom edge thereof.
member 78 and the surface against which it is positioned.
The front plate member 78 contains a large circular
If a long drill bit were used so that it would project
work-tool receiving opening 100 adjacent the center there 70
beyond
the front plate member '78 when the power unit
of in axial alignment with the power unit 20, and a simi
plate member, the tubular sockets being provided with
thumb screws 90‘ for a purpose to appear. Similar lower
20 is moved to its most rearward position relative to the
lar hand slot 102 adjacent the bottom edge thereof. The
sleeve 24, the vise member 128 should be used as an
front plate member is also provided with two upper aper
extension. Thus, the vise member 128 would be used in
tures 104 adjacent the top edge thereof with associated 75 the manner shown in FIG. 6 in which the guide rods 144
3,096,798
5
6
and 146 are inserted through the upper apertures 104 and
into the tubular sockets 106. Because one guide rod is
longer than the other, it is only necessary to insert one at
a time in each aperture thereby facilitating the assembling
of the unit. After the guide rods have been inserted into
the sockets 106 the proper distance, the thumb screws 108
chuck S0 with the saw blade exterior of the framework
22. In this operation, the power unit 20 is moved into
the sleeve 24 until the detents 58 are positioned in the
annular groove 66 whereby the power unit can be rotated
in the sleeve to raise and lower the saw blade as will be
described more fully hereinafter. In order to support the
workpiece relative to the saw blade at table 164 is pro
vided, the table being mounted on the upper portion of
tion with the vise plate 130 parallel with the front plate
the supporting framework 22 so that it can be tilted rela~
member 78. Consequently, when the vise plate 130 is
held against a ?at surface and the power unit 20 is moved 10 tive thereto and locked in selected tilted position. Thus,
the table 164 has a rectangular top portion 166 with de
axially of the sleeve 24 in the manner previously described,
pending ?ange-like edge portions 168 formed integral
the bit will drill a 'hole in the workpiece which is per
therewith. Formed in the top portion adjacent the center
pendicular to the surface of the workpiece and the vise
thereof is a saw slot 170 and adjacent thereto is a router
plate 130. FIG. 6 shows the device in position to drill
a hole in a vertical surface and FIG. 7 shows the device 15 opening 172. Adjacent one edge of the top portion is a
groove 174 for receiving the guide ‘bar of a conventional
in position to drill a hole in a horizontal surface. In
mitre gage (not shown). As shown in FIG. 11, a semi
addition, the assembly shown in FIG. 7 can be used for
circular protractor-like plate 176 is fastened to the under
drilling holes in workpieces which are fastened to the
side of the top portion 166 by means of spaced clips 178
assembly; in short, the member 128 can be used as one
jaw of a vise. Thus, assuming that it is desired to drill 20 so as to depend therefrom inwardly of one of these edge
portions 168. A pin 180 is mounted adjacent the upper
a hole in a cylindrical wooden workpiece such as a dowel
edge of the plate 176 so as to extend into the pin-receiving
rod (not shown), the rod would be positioned in the
recess 118. Adjacent the lower edge of the plate is an
V-shaped groove 136 and the thumb screws 108 loosened
arcuate slot 182 which receives a threaded thumb screw
to permit the front plate member 178 to be lowered until
the V-shaped groove 116 thereof engaged the upper sur 25 184 which extends into the threaded recess 126. A retain
ing Washer 186 (FIG. 10) prevents the screw from falling
face of the rod. The thumb screws 188 would then ‘be
out of the slot 182 when the table is not in use. If de
tightened so as to hold the rod securely between the vise
sired, the arcuate edge of the plate 176 can be provided
plate 130 and the front plate member 78 while the power
with an angular scale 188 and an arrow 190 or other type
unit 20 is moved in the sleeve 24 in the manner previ
ously described so as to drill a hole through the cylindrical 30 of datum line can be marked on the framework 22 below
the plate. Also fastened to the under side of the top
workpiece.
portion 166 in alignment with the pin 180 is a tubular
As shown in FIG. 8, the vise member 128 can also be
housing 192 (FIG. 10) which contains a slot provided
used with the framework 22 for drilling holes in an elon
with an inoperative notch 194 and an operative notch
gated member, as for example a ?at board such as a
1" x 6" (not shown). In this operation, the vise mem 35 196. Mounted in the housing 192 is a coiled spring 198
which bears against one end of a latch bolt 200 which
ber 128 is turned around from the position shown in
has a reduced end 202 positioned in the pin-receiving
FIG. 6 so that the guide rods 144 and 146 are inserted
recess 122. The bolt 200 is provided with a handle 204
through the lower apertures 110 and 112 and 94, the
whereby it can be moved into engagement with either of
thumb screws 114 and 96 being loosened so that the vise
the aforementioned notches. Thus, it will be apparent
member 128 is free to move relative to the front plate
that in order to use the device as a bench saw, it is merely
‘member 78. A rip fence 148 is then mounted on the vise
necessary to position the shaft and saw ‘blade assembly 162
plate 130 in the proper vertical position relative to the
drill bit supported in the chuck 50. ‘The trip fence 148
in the chuck 50 (as previously mentioned) and fasten the
are tightened so as to lock the vise member 128 in posi
contains a guide member which is of V-sh-aped cross sec
table 164 in a horizontal or tilted position, as desired.
tion with a continuous leg portion 150 and a leg portion 45 The last-mentioned step can be easily and quickly accom
plished by moving the latch bolt 200 to the inoperative
152 which contains two elongated parallel slots 154. A
position with the handle in the notch 194, engaging the
?xed jaw member 156 is fastened to one end of the leg
pin 180 in the recess 118, aligning the bolt 200 with the
portion 152 and an adjustable jaw member 158 is mounted
recess 122 and releasing the handle 204 from the notch
in the slots 154 whereby the rip fence can be clamped
to a table or to the vise plate 138 as shown in FIG. 8. 50 194 to cause the reduced end 202 to be moved into the
After the rip fence 148 has been secured in the proper
position, the board to be drilled can be supported on the
leg portion 150 with one face thereof held against the
inner face of the vise plate 138. Consequently, when the
recess 122 by the action of the spring 198. The handle
is then moved into the operative notch 196, thereby lock
ing the table in position on the framework 22. Thereafter,
the thumb screw 184 is engaged in the recess 126, and
vise member 128 and the ‘rip ‘fence 148 are moved toward 55 after the table is pivoted or tilted to the desired angular
the bit and the power unit 20 (the latter being held in
position, the thumb screw 184 can be tightened to lock
?xed position by means of the thumb screws 70), a hole
the plate 176 against the side panel 81. As shown in
will be drilled in the board. The vise member 128 and
FIG. 9, the same rip fence 148 can also be used with the
the board can then be backed away from the bit and the
table 164 when the device is being used as a table saw.
board moved along the leg portion 150 to the position 60
where another hole is to be drilled. In this manner, a
series of aligned holes can be drilled in a board, each hole
As mentioned hereinabove, the vertical position of the
saw blade relative to the table 164 (and therefore the
depth of cut) can be varied by merely rotating the power
being the same distance from the lower edge of the board
unit
20 within the sleeve 24 with the detents 58 positioned
which was supported on the rip fence 148. As shown in
FIG. 8, it is preferable to fasten the supporting frame— 65 in the annular groove 66. Thus, by referring to FIG. 4
and assuming that the saw blade is supported in the low
work 22 to a table or the like during the drilling operation
speed chuck, the ‘blade will be at its lowermost position
as by means of a C-clamp 160v or the like. It will also
when the power unit 20 is in the position shown in FIG. 4.
be obvious that the vise member 128 could be ?xed in
position relative to the framework 22 as by tightening the
When the power unit 20 is rotated 90° in either direction,
thumb screws 114 and 96, and the thumb screws 70 70 the saw blade will be raised one half of its travel and
when it is rotated the full 180° the blade will have been
loosened so that the power unit 20 would be free to be
moved axially of the sleeve 24.
raised a distance equal to the spacing between the centers
of the low-speed and the high-speed sockets 42 and 40,
If it is desired to use the device as a table saw (FIG. 9),
the vise member 128 and the drill bit are removed and
respectively. Obviously, the power unit 20 and therefore
a shaft and saw blade assembly 162 are mounted in the 75 the saw blade can be locked in any selected position by
3,096,798
8
means of the thumb screws 71) which engage the hous
ber 128 has its guide rods 144 and'146 inserted in the
ing 26.
apertures 1111 contained in the front plate member 178
so that the vise plate projects downwardly below ‘the edge
of the work bench. This places the pin-receiving recesses
If desired, a second latch bolt assembly and associated
pin 286 (only the pin 266 being shown as in FIGS. 9
and 15) can be mounted on the table 164 for use when
138 and 140 and the threaded recess 142 adjacent the
uppermost edge \of the vise plate. Thereafter, the table
more fully when the assembly shown in FIG. 16 ‘is dis
164 is positioned ‘on the vise plate 130 with the pin 180
cussed.
thereof positioned in the recess 140, (the end 202 of the
The device can also be used as a hand power tool for
latch ‘bolt 200 positioned in the recess 138 (the handle
drilling holes a predetermined distance from the edge of 1O 284 of the bolt being moved into the looking or operative
a door or other ?at surface by employing the rip fence
notch 1%) and the thumb screw 184 threaded into the
148 in the manner shown in FIG. 12. Thus, with the
recess 142. The table 164 is then leveled by means of
power unit 28 positioned in the sleeve 24 so that the
the graduated semicircular plate 176 and the thumb screw
the device is employed ‘as a router as will be described
detents 58 ride in the longitudinally extending grooves
148 tightened to lock the table 164 in position. There
68, the rip fence 148 can be fastened to the outer surface 15 after, the table 164 and the vise member 128 are moved
of the front plate member 78 a predetermined distance
inwardly toward the framework 22 with the guide rods
from the drill bit which obviously can be held in either
144 and 146 sliding in the sockets ‘112 until the end of
the high-speed or low-speed chuck position. If desired,
the table 164 abuts the outer face of the front plate mem
graduations 208 can be marked on the outer face of the
ber 78. The thumb screws 114 are then tightened, there
plate members 78 so that the rip fence 148 can be quickly 20 by locking the unit in assembled position. As previously
clamped in the proper position relative to the drill bit
mentioned, the power unit 28' would normally be locked
without measuring the distance between the fence and
in position in the sleeve 24 by means of the thumb
the bit. After the unit has been assembled as described,
screws ‘7111.
the outer face of the plate member ‘78 can be positioned
Yet another arrangement of the various components
against the surface to be drilled with the leg portion 158 25 is shown in FIG. 16 wherein the device is used as a
of the rip fence in engagement with the edge of the door
router, a routing tool 224 being ‘fastened in the chuck 58
or the like being worked upon. The power unit 28 can
in the same manner as the other work tools previously
then be energized, and by moving the power unit 20' in
described. As the ?rst step in assembling the device as
the sleeve 24 the ?rst hole can be drilled in the workpiece.
a router, the vise member 128 is positioned on a ?at sur
The power unit 20 is then backed off, the framework 22 30 face such as the top ‘of a work bench, with the guide rods
moved along the surface with the rip fence 148 in con
144 and 146 extending upwardly. The framework 22
tact with the edge thereof, ‘and another hole easily and
(with the power unit 20 locked in position in the sleeve
quickly drilled in the workpiece the same distance ‘from
24 and without the outer tool 224 a?ixed) is then posi
the edge as the ?rst hole.
tioned on the guide rods 144 and 146 whereby the latter
As shown in FIGS. 13 and 14, the device can also be 35 extend through the apertures 36 in the rear plate member
used as a hand power saw, either with or without a guide
81) and into the sockets 88. With the handle 30 bearing
member, by merely turning the framework 22 so that
on the inner face of the vise plate 138 the thumb screws
it rests on the top edges of the front and rear plate mem
bers. Thus, the saw blade assembly previously described
can be replaced with a conventional saber saw unit 210
which includes a drive shaft 212 fastened in the chuck
58, a housing 214 fastened to the outer surface of the
front plate 78 in a manner to be described, ‘and a saw
blade 216 which projects from the housing. The housing
214 contains transversely projecting ears 218 which are
provided with openings for receiving machine screws 228
which extend into the tapped holes 115 thereby securely
fastening the saw unit 218 to the supporting framework.
It will be readily apparent that ‘with the power unit 2%}
locked in position by means of the thumb screws 70, the
unit can be grasped by means of the hand slot 182 and
the handle 38 and the saw blade 216 used for ripping a
9%) ‘are tightened so as to lock the unit in assembled posi
tion with the chuck 51) extending vertically upwardly.
The table 164 previously described is then positioned on
the front plate member 80 with the pin 1181)‘ in the recess
118 and the reduced end 2112 of the latch bolt 288 in the
recess 122. In this assembly another tapped opening can
be provided adjacent the opening 126 in the side panel
45 81 for receiving the thumb screw 184 so ‘as to be used
in locking the table 164 in ‘a horizontal position, or, a
second pin and latch bolt assembly can be used. If the
latter type of construction is employed, the pin 286 (simi
lar to the pin 181)) is positioned in the recess 120‘ and
the end of the second latch bolt (not shown) is positioned
in the recess 124. Thus, the table 164 can be securely
fastened to the end of :the framework 22 without any
board as shown in F1G. 13. If it is desired to use a
possibility of the table being tilted or tipped during the
guide to accurately control the width of the strip being
routing operation. With the table in position, the router
ripped from the board, the vise member 128 can be em
55 tool 224 is inserted through [the opening 172 and into
ployed for this purpose by inserting the guide rods 144
holding engagement with ‘the chuck 58. As shown in
and 146 in the ‘apertures 184 with the vise plate 130'
FIG. 16, the rip fence 148 can ‘also be used with this
extending in the same direction as the saw blade 216. In
arrangement.
this manner the ‘guide rods 144 ‘and 146 can be clamped
It will be obvious from the above description that the
in any desired position by means of the thumb screws 114
framework 22, the table 164, and the vise member 128
whereby the saw blade 216 can be guided a predetermined
can be used together in other combinations and with other
distance from the edge of the board.
cutting and forming tools so ‘as .to provide ‘other types
It will also be apparent from the previous description
of hand and bench power tools which may be used in a
of the table saw assembly (FIG. 9) that the table 164
home workshop. By way of illustration of -a further
can also be used with the saber saw unit 21%) whereby the 65 adaptation, the assembly can be used for quickly drilling
device can be used as a table-type jigsaw with the saw
holes in a predetermined position in the edge surface of
blade 216 extending upwardly through the saw slot 170
a ?at member such as a door ‘or the like. Thus, assum
(not shown because of similarity to other views).
ing that it is desired to drill a series of vertically spaced
If it is desired to have a sander or grinder, the various
holes in the exact center of the edge surface of a hung
units can be arranged in the manner shown in FIG. 15 70 door or a number of doors, the vise member 128 (FIG.
wherein the work tool is a grinding wheel or sander disc
6) would be removed from the framework 22 and two
assembly 222 which includes -a shaft gripped by the
short guide rods (not shown) inserted in diagonally posi
chuck 50 previously described. In this arrangement the
tioned tubular sockets 106 and 112 and locked in posi
framework 22 is positioned adjacent the edge of a ?at
tion therein so as .to project from the outer face of the
surface such as a work bench or table ‘and the vise mem~ 75 front plate member 78. The assembly would then be
3,096,798
9
1%
positioned adjacent the edge of the door with the short
guide rods on opposite sides thereof and the framework
rotated to bring the guide rods into engagement with
plane for supporting the tool on a ?at surface in operative
the opposed surfaces of the door. The power unit 26
would then be rotated in its sleeve 24 until the drill bit
was in alignment with the center of the door edge, and
the thumb screws 70 were tightened to lock the unit in
position. Thereafter, in order to drill other holes in
position; a cylindrical electrically operated power unit
containing rotatable work-tool supporting means adja
cent one end thereof supported on the rear frame mem
ber for rotational movement relative thereto and for
movement toward and away from the front plate mem
ber, said power unit being rotatable through substantially
360 degrees relative to its support, said work-tool support
ing means being offset from the center of the power unit;
doors of similar width, it is only necessary to fork the 10 means for maintaining the power unit in selected rota
tional position relative to its support and in selected posi
short guide rods on the door edge, rotate the assembly
tion relative to the front plate member; a work-tool pas
to bring the rods into engagement with the faces of the
sageway in the front plate member in alignment with the
door, and move the assembly toward the edge until the
work-tool supporting means; and means on said front
‘proper depth ‘hole has been drilled.
the center of the edge surface of the same door or other
Consequently, it is apparent that there has been pro‘ 15 member for supporting a plurality of separate workpiece
engaging means whereby a workpiece engaged thereby is
in operative relationship with the work-tool supporting
of the objects and advantages sought therefor. The de
vice is relatively simple in design and contains only a few
means.
4. A multipurpose power tool comprising: front plate
components; yet the various components can be easily
and quickly assembled together in various ‘arrangements 20 and rear frame members positioned in ?xed, spaced-apart
vided a novel multipurpose power tool which ful?lls all
to provide a wide range of hand and bench-type power
tools. Because the components are relatively few in
number, a device of this type is relatively inexpensive.
relationship providing at least three points in a common
plane for supporting the tool on a flat surface in operative
position; a tubular sleeve supported on the rear frame
member; an electrically operated power unit containing
porting framework, the device requires very little stor 25 rotatable work-tool supporting means adjacent one end
thereof mounted in the sleeve for longitudinal and rota
age space or working space. Therefore, it is ideally
suited for the small home-type workshop and for use by
tional movement relative thereto, said rotational move
ment being through substantially 360 degrees, the work
the amateur woodworker or cabinetrnaker. However, the
device is sufficiently rugged ‘and versatile so that it can
tool supporting means being offset from the axis of the
be advantageously employed by the professional crafts
sleeve; means for maintaining the power unit in selected
man as well.
rotational and transverse positions relative to the sleeve;
v1t is to ‘be understood that the foregoing description
a work-tool passageway in the front plate member in
and the accompanying drawings have been given only by
alignment with the work-tool supporting means; and
way of illustration and example and that changes and
means on said front plate member for supporting work
alterations in the present disclosure which will be readily
piece-engaging means whereby a workpiece engaged there
Also, because there is only one power unit and its sup
apparent to one skilled in the art are contemplated as
within the scope of the present invention.
1 claim:
1. A multipurpose power tool comprising: front plate
and rear frame members positioned in ?xed, spaced~apart
relationship providing at least three points in a common
plane for supporting the tool on a ?at surface in opera
tive position; an electrically operated power unit contain
ing a shaft with rotatable work~tool supporting means
by is in operative relationship with the work~t0ol sup
porting means.
5. A multipurpose power tool comprising: front plate
and rear frame members positioned in ?xed, spaced
apart relationship providing at least three points in a
common plane for supporting the tool on a ?at surface
in operative position; a cylindrical sleeve having a front
end and a rear end supported on the rear frame member;
an internal annular groove in the sleeve adjacent the
supported on the rear frame member for axial movement 45 front end thereof and at least one internal longitudinal
towand and away from the front plate member, the axis
groove extending from said annular groove to the rear
of said shaft being substantially'parallel with the afore
end of the sleeve; an electrically operated power unit
mentioned common plane whereby the same is substan
tially parallel with the ?at surface on which the tool may
be positioned; a work-tool passageway in the front plate
containing rotatable work-tool supporting means at one
end thereof supported in the sleeve, said power unit in—
cluding a cylindrical housing provided with projecting
member in alignment with the work-tool supporting
detent means received in said ‘grooves whereby the power
unit has controlled longitudinal movement and rotational
movement through 360 degrees relative to the sleeve, the
engaged thereby is in operative relationship with the
work-tool supporting means being offset from the axis of
work-tool supporting means.
55 said housing; means for maintaining the power unit in
2. A multipurpose power tool comprising: front plate
selected position relative to the sleeve; and a work-tool
and rear frame members positioned in ?xed, spaced-apart
passageway in the front plate member in alignment with
relationship providing at least three points in a common
the work-tool supporting means.
means; and means on said front plate member for sup"
porting workpiece-engaging means whereby a workpiece
plane for supporting the tool on a ?at surface in opera
tive position; an electrically operated power unit con
taining a shaft with rotatable work-tool ‘supporting means
6. A multipurpose power tool comprising: front plate
and rear frame members positioned in ?xed, spaced
apart relationship providing at least three points in a
supported on ‘the rear frame member for axial movement
toward and away from the front plate member, the axis of
said ‘shaft being substantially parallel with the aforemenl
in operative position; a tubular supporting sleeve having
common plane for supporting the tool on a ?at surface
a cylindrical inner wall supported on the rear frame mem
tioned common plane whereby the same is substantially 65 ber; detent means projecting inwardly from said inner
parallel with the flat surface on which the tool may be
wall; an electrically operated power unit containing a
positioned; a work-tool passageway in the front plate
cylindrical housing having a front end and a rear end,
member in alignment with ‘the work-tool supporting
means; and workpiece-engaging means removably and
adjustably mounted on said front plate member for sup
the power unit having rotatable work-tool supporting
means adjacent the front end thereof offset from the axis
of the housing; an external annular groove in the housing
porting a workpiece in operative relationship with the
adjacent the rear and thereof and at least one external
work-tool supporting means.
longitudinal groove therein extending from the annular
3. A multipurpose power tool comprising: front plate
groove to the front end of the housing, said grooves re
ceiving the detent means whereby the power unit has
and rear frame members positioned in ?xed, spaced-apart
relationship providing at least’ three points in a common 75 controlled longitudinal ‘and rotational movement through
3,096,798
11
12
360 degrees relative to the supporting sleeve; and a work
tool passageway in the front plate member in alignment
work containing front and rear members in ?xed, spaced
apart relationship, the front member including top and
a side portion formed integral therewith; a stationary
jaw element fastened to one end of said base portion for
holding engagement with one of said edges of the vise
plate; and a movable jaw element adjustably mounted
adjacent the other end of said base portion for holding
engagement with another of said edges of the vise plate,
bottom edges in substantially parallel relationship, said
whereby the side portion of the rip fence projects from
with the work-tool supporting means.
7. A multipurpose power tool comprising: a frame
the vise plate in work-supporting position.
top edge and the rear member providing at least three
spaced-apart points in a ?rst common plane for support
14. A multipurpose power tool as set forth in claim
ing the tool on a ?at surface in a ?rst operative position, 10 2 in which the workpiece-engaging means comprises a
said bottom edge and the rear member providing at least
table mounted on the front plate member, and saw means
three spaced-apart points in a second common plane for
are positioned adjacent the outer face ‘of the front plate
supporting the tool on a ?at surface in a second operative
member and operatively connected to the work-tool sup
position; an electrically operated power unit containing
porting means.
15. A multipurpose power tool comprising in combina
rotatable work-tool supporting means supported on the 15
rear member for controlled movement toward and away
from the front member; a work-tool passageway in the
tion: a framework containing front and rear end mem
front member in alignment with the work-tool supporting
bers in spaced-apart relationship, the front member hav
ing a top edge and opposed side edge portions, said front
means; ‘and means on said front member adjacent the
and rear end members supporting the framework on a
top and bottom edges thereof for supporting a plurality 20 ?at surface in an operative position; an elongated elec
trically operated power unit having a front end and a
of different workpiece-engaging means whereby ‘a work
piece engaged thereby is inoperative relationship with the
rear end mounted on the rear end member for transverse
movement relative thereto and toward and away from the
front end member, the front end of the power unit con
work containing front and rear members in ?xed, spaced 25 taining rotatable work-tool supporting means and the rear
apart relationship, the front member including top and
end thereof being provided with a handle; a work-tool
passageway in the front end member in alignment with the
bottom edges in substantially parallel relationship, said
tool-supporting means; ‘opposed pin-receiving recesses
top edge and the rear member providing at least three
provided in the side edge portions of the front member
spaced~apart points in a ?rst common plane for support
ing the tool on a flat surface in a ?rst operative posi 30 adjacent the top edge thereof; a work table pivotally and
removably mounted on the front end member, said work
tion, said bottom edge and the rear member providing
table containing a ?xed pin positioned in one of said pin
at least three spaced-apart points in a second common
receiving recesses and a movable pin removably posi
plane for supporting the tool on a flat surface in a second
operative position; an electrically operated power unit
tioned in the other of said recesses; and means for main
work‘tool supporting means.
8. A multipurpose power tool comprising: a frame
containing rotatable work-tool supporting means sup 35 taining the work table in selected pivoted position rela
tive to the framework.
16. A multipurpose power tool as set forth in claim
ported on the rear member for controlled movement to
ward and away from the front member; a Work tool pas
sageway in the front member in alignment with the Work
tool supporting means; and workpiece-engaging means re
movably and adjustably mounted on said front member 40
adjacent one edge thereof for supporting a workpiece in
operative relationship with the work-tool supporting
means.
9. A multipurpose power tool as set forth in claim 1 in
which the means for supporting the workpiece-engaging
means includes a plurality of spaced-apart apertures for
receiving rods with workpiece-engaging means; and se
lectively operable retaining means associated with the
apertures for maintaining the rods received therein in
predetermined position relative to the front plate member.
10. A multipurpose power tool as set forth in claim 7
in which the means for supporting the workpiece-engaging
means includes a plurality of spaced-apart apertures for
receiving rods with workpiece-engaging means; and se
lectively operable retaining means for maintaining the
15 in which the movable pin is contained on the end of
a latch bolt which is slidably positioned in a housing
fastened to the table.
17. A multipurpose power tool as set forth in claim
15 in which the power unit is also rotatable relative to
the rear end member and the work-tool supporting means
is offset from the axis of rotation of said power unit so
that the distance between the table and the work-tool
supporting means is varied by rotating the unit relative
to the rear end member.
18. A multipurpose power tool'as set forth in claim
15 which includes means for maintaining the power unit
in selected position relative to the rear end member. ,
19. A multipurpose power tool as set forth in claim 2
including a saber saw assembly mounted on the outer face
of the front end member adjacent the work~tool pass-age
way, said assembly containing a drive shaft connected to
the work-tool supporting means; and in which tool the
rods received therein in predeterminedposition relative
front plate member contains rod-receiving apertures and
to the front member.
the workpiece-engaging means comprises a vise member
'
11. A multipurpose power tool as set forth in claim
2 in which the'f'ront plate member contains rod-receiving
apertures and the workpiece-engaging means comprises:
a vise member containing a vise plate provided with a
work-tool receiving opening, and a plurality of guide rods
extending from the vise plate and into the rod-receiving
apertures in the front plate member.
containing a vise plate having a plurality of guide rods
extending therefrom and into the rod-receiving apertures
in the front plate member for maintaining a workpiece
in predetermined cutting position relative to said saber
saw’ assembly.
20. A multipurpose power tool comprising in corn
laination: a framework containing front and rear end
12. A multipurpose power tool as set forth in claim 65 members in spacedaapa-rt relationship, the front end mem
ber having an outer face and said end members together
2 in which the front plate member contains rod-receiving
supporting the framework on a ?at surface in an opera
apertures and the workpiece-engaging means comprises:
tive position, an elongated electrically operated power
a vise member containing a vise plate with opposed edges
unit having 1a front end and a rear end mounted on the
provided with a work~tool receiving opening; a plurality
of guide rods extending from the vise plate and into the 70 rear end member, the front end of the unit containing
worktool supporting means; a Work~tool passageway in
rod-receiving apertures in the front plate member; and
the front end member in alignment with the tool-support
Work-supporting means mounted on the vise member.
ing means; a plurality of rod-receiving apertures in the
13. A multipurpose power tool as set forth in claim
fnont end member adjacent the work-tool passageway, ‘the
12 in which the Work-supporting means comprises: a
fence of L-shaped cross section having a base portion and 75 axes {of said apertures ‘being substantially parallel with the
asserts
13
14
plurality of apertures in the front end member for receiv
ing rods with work-engaging means associated therewith,
the axes of said apertures being substantially parallel with
‘axis of the power unit; means associated with the aper
tures for maintaining the rods received therein in selected
position relative to the front end member; a vise member
the \axis of the power unit; means associated with the aper
including a vise plate having opposed side edges and an
upper edge; guide rods extending from the vise plate into
the rod~reeeiving apertures in the front end member; a
tures for maintaining the rods received therein in selected
position; and opposed pin-receiving recesses in the side
edges of the front end member for selectively supporting
table removably mounted on the vise plate at the upper
edge thereof; and an abrasive wheel mounted in the work
tool supporting means so as to be positioned adjacent the
outer face of the front end member and above the table.
21. A multipurpose power tool as set forth in claim 20
25. A multipurpose power tool, comprising: a frame
work containing front and rear end members, said front
member having an outer face and containing a work-tool
in which the vise plate contains opposed pin~receiving re
cesses in the opposed side edges adjacent the upper edge,
having a front end and a rear end mounted on the frame
a work table on said member.
passageway; an elongated electrically operated power unit
work for longitudinal movement relative thereto, the front
and the table contains a ?xed pin positioned in one of said
recesses and a movable pin positioned in the other of said 15 end of said power unit containing work-tool supporting
means, the front and rear end members supporting the
recesses.
framework on a ?at surface in an operative position with
22. A multipurpose power tool comprising in combina
the axis of the power unit substantially parallel with said
tion: a framework containing front and rear end members
flat surface; means on the front end member for mount
in spaced-apart relationship, the front member having an
ing a sabre saw on the outer face thereof in registry with
outer face; an elongated electrically operated power unit
the work-tool passageway and with the drive means of the
having :a front end and a rear end mounted on the rear
saw connected to said work-tool supporting means; a plu
end member for transverse movement relative thereto and
rality of apertures in the front end member for receiving
toward and away from the front end member, the front
rods with work-engaging means associated therewith, the
end of the unit containing worktool supporting means
and the rear end being provided with a handle; a work 25 axis of said apertures being substantially parallel with the
axis of the power unit; and means associated with the
tool passageway in the front end member in alignment with
apertures for maintaining the rods received therein in se
the tool-supporting means; a plurality of rod-receiving
lected position.
apertures in the rear end member; .a vise member includ
ing a vise plate having an outer face and an inner face, a
References Cited in the ?le of this patent
plurality of guide rods extending from the inner face of 30
the vise plate and into the apertures in the rear end mem
UNITED STATES PATENTS
ber [whereby the framework is supported on the outer face
541,349
Gardner _____________ __ June 18, 1895
of the vise plate with the front end member positioned
above the rear end member; and a table mounted on the
front end member adjacent ‘the outer face thereof.
35
23. A multipurpose power tool as set forth in claim 22
in which the front end member contains side edge portions
provided with opposed pin-receiving recesses, and the
table contains a ?xed pin positioned in one of said recesses
and a movable pin positioned in the other of said re 40
cesses.
24. A multipurpose power tool, comprising: a frame
work containing front and rear end members in ?xed,
1,506,154
‘1,651,995
1,662,608
1,679,103
1,697,669
Berthelsen et a1 ________ __ Aug. 26,1924
Casey ________________ __ Dec. 6, 1927
Hill ________________ __ Mar. 13, 1928
Thomson _____________ __ July 31, 1928
'I‘autz _________________ __ Jan. 1, 1929
1,712,049
Robb ___-______________ __ May 7, 1929
1,729,324
1,864,840
1,896,924
Bates ________________ __ Sept. 24,
Lehner ______________ __ June 28,
Ulrich ________________ __ Feb. 7,
Bocie _.._- ____________ __ July 18,
Wazac _______________ __ July 18,
Sanders _____________ _._ Dec. 23,
Goldsehmiclt __________ __ Dec. 30,
Turnbull _______________ __ Mar. 3,
Moeller _______________ __ Apr. 5,
Groehn ______________ __ July 16,
2,166,703
1929
1932
1933
1939
work for longitudinal movement relative thereto, the front
end of said power unit containing work-tool supporting
2,166,831
2,622,638
2,623,269
2,630,151
2,705,513
2,799,305
2,842,171
means; a work-tool passageway in the front end member 50
2,905,213
Levine ____ _._' ________ .... Sept. 22, 1959
in alignment with the tool-supporting means, said front
2,913,025
Richards ____________ __ Nov. 17, 1959
241,434
Great Britain _________ __ Oct. 22, 1925
spaced-apart relationship, said front member having op
posed top and bottom edges and side edges adjacent the 45
top edge; an elongated electrically operated Power unit
having a front end and a rear end mounted on the frame
and rear end members supporting the framework on a
?at surface in an operative position with the axis of the
power unit substantially parallel with said ?at surface; a
1939
1952
1952
1953
1955
1957
Weilcart et I31 ___________ __ July 8, 1958
FOREIGN PATENTS
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