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Патент USA US3046864

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July 31, 1962
Filed. April 6, 1959
2 Sheets-Sheet 1
O. M. Baxter
July 31, 1962
' Filed April 6, 1959
Z Sheets-Sheet 2
0. M. Baxter
United States Patent 0
Orion Martin Baxter, 4802 Roosevelt, San Antonio, Tex.
Filed Apr. 6, 1959, Ser. No. 804,480
1 Claim. (Cl. 94-48)
3,046,856 ,
Patented July 31, 1962
by set screws 28 and 29 rotatable by means of connected
handles 30, 31 and lock nuts 32, 33. At their outer ends
the shafts 26, 27 terminate in curved handles 34, 35. At
its free end one of the handle members, 35 is provided
with a‘ socket or attachment member 36 for the shank
37 which projects forwardly [from the free end of the
The present invention relates to concrete ?nishing
other curved handle 34. A set screw 38 on the socket 36
device and has for an object to provide a device for
rough or ?ne concrete ?nishing in which new forms of
may bind into the shank 37 to maintain the coupling, the
handle arrangements provide adjustability for various
new modes of operation.
A further object of the invention involves a new form
of frame over which expanded metal or other suitable
concrete contacting material is placed or stretched.
set screw having a handle39 for this purpose. The set
10 screw is also provided with a lock nut 40 threaded there
on and positioned to jam against the socket side wall to
maintain the adjustment.
Referring more particularly to FIGURE 6, a goose
neck ?tting has a threaded shank 42 for screwing into
A still further object of the invention is to provide the 15 the internally threaded center socket 19. At its other
end the gooseneck ?tting 41 is also provided with a
?nishing member with certain new arrangements of con
threaded shank 43 for threading into a handle shaft ex
necting means by which the shafts of handles may be
tension 44. A board 45 is attached beneath the base 10
accommodated to the ?nishing member in various angu
in any suitable manner and preferably extends beyond
lar relationships with means for connecting the handles
together in one position for presenting a new manual ap 20 the ends of the ?nishing member.
FIGURE 1 shows the device in a collapsed position in
proach for producing a novel form of manipulation of
which it occupies a minimum of space. The stub shanks
the instrument and with new case in its handling.
22 and 23 are folded down toward one another substan
With the foregoing and other objects in view, the inven- .
tially parallel with the ?nishing member while the ban
tion will be more fully described hereinafter, and will be
more particularly pointed out in the claim appended 25 dles and their shafts are completely disconnected from the
stub shanks and laid on the upper edges of the bars 11,
12, 13 ‘and 1,3“. Substantially all parts are accommo
In the drawings, wherein like symbols refer to like or
dated within the con?nes of the outer longitudinal mem
corresponding parts throughout the several views:
bers 11 and 12 and the end members 14 and 15.
FIGURE 1 is an isometric view of one form of a con
FIGURE 2. shows the stub shanks 22 and 23 erected
crete ?nishing device constructed in accordance with the 30
with the handle shafts 26 and 27 telescoped therewith
invention with the parts collapsed and assembled in small
compass for packing and transportation.
and with the curved handles turned mutually together
ly parallel with the ?nishing member in which positions
and at?xed by the shank 37 and socket 36.
FIGURE 2 is a similar view showing the device set up
FIGURE 4 shows the curved handles 34, 35 disasso
for operation with the handles in one assumed position.
FIGURE 3 is a top plan view of the ?nishing member 35 ‘dated and turned at right angles to the position of FIG
URE 4, both handles projecting in the same direction.
showing the stub shanks of the handle shafts pivoted
This is permissible by loosening the set screws 28 and 29
and rotating or angularly turning the shafts 26 and 27
FIGURE 4 is a view similar to FIGURE 2 but with
on the stub shanks 22 and 23. Thereafter the handles
the handles turned angnlarly into a different position for
40 30, 31 are rotated to a?ix the set screws so that this ad
a di?erent mode of operation.
justment may be secured.
FIGURE 5 is a cross sectional view taken on an en
In FIGURE 6 the stub shanks 22 and 23 are shown
larged scale on the line 6--6 in FIGURE 3.
as having been rotated outwardly to positions substantial
FIGURE 6 is an isometric View of a modi?ed form of
FIGURE 7 is a fragmentary sectional view taken 45 they constitute weight factors tending to balance the tool
which in this instance is connected to a single handle ex
through one of the stub shanks and tubular handle shafts
tension 44 through a single gooseneck 41 connected to
and illustrated in detail a form of retaining device.
Referring more particularly to the drawings, 10 desig
the single central socket 19.
Thus the long ?nishing
member including its board 45 may have a tendency to
nates an expanded metal or other base which is stretched
or affixed over a metal or other frame comprising the fol 50 rock about the center socket 19 or the gooseneck and
handle connection at this single central point and a con
lowing members: longitudinal outside bars 11 and 12
dition of stability is afforded by the stub shanks 22 and
and longitudinal inside bars 13 and 13a ‘which bars are
23 when rotated to the position indicated in FIGURE 6.
' spaced apart and connected by end bars 14 and 15.
At 44 is indicated only one handle extension of which
These various bars 11-15 are set on edge with the base
10 secured to the lower edges thereof and center and side 55 there may be ‘several jointed together in any suitable
manner as by the screw shanks 43. The base with the
?at 'bars 16, 17 and 18 laid crosswise over the upper
center handle attachment as illustrated in FIGURE 6 and
edges of the bars and af?xed thereto as by welding or
the handle extensions 44- permit the use over large areas
without the ?nisher having to walk on the concrete. It
The center ?at bar centrally thereof supports a center
socket ‘19 which is internally threaded. The side bars 17 60 will be understood that, in connection with this FIGURE
6, that the gooseneck 41 may be bent to any desired
and 18 support centrally thereof pairs of upstanding per—
angles and the handle extensions 44 will accordingly ex
forated ears 20 and 21 which receive therebetween the
tend o? to low or high points to permit accommodation
stub shanks 22 and 23 hinged to the pairs of ears 20 and
to various positions and desires of the operator.
21 by pivot bolts 24 and 25 having nuts 24a and 25a
threaded thereon for tightening the stub shanks 22 and 23 65 It will thus be seen that the invention provides jointed
in various angular positions ‘or for relieving the pivot bolts
free of any tight frictional restraint so that the stub
shanks 22 and 23 may freely pivot about the same in
> the operation of the tool.
Tubular shafts 26 and 27 are telescoped with the stub
shanks 22 and 23 to provide a longitudinal and also an
angular adjustment. The adjustment may be maintained
and movable connections, imparting great ?exibility
which enables the leveling device to be used at di?er
ent angles and in different situations all of which will be
appreciated by those skilled in the art and Will contribute
to an easier manipulation of the instrument and more
satisfactory operations upon the concrete.
‘In the collapsed position of FIGURE 1, the device
may be carried in an automobile or by hand on a bus.
members may occupy parallel planes or lie in a
Together with a gooseneck the device involves only four
pieces and its weight may be restricted to approximate
(g) the upper termini of said handle members being
common plane,
in juxtaposition when said handle members are in
~ The metal frame covered by the expanded metal is
used to force the ?nes (sand and cement mortar and
?ne stones that are forced tothe surface) and water to
the surface on a freshly poured concrete slab or sidewalk
(h) means for connecting said juxtaposed upper ends
of said handle members whereby said two handl
ly twenty pounds.
a common plane, and
members function as a single handle.
and will thus make the surface easier to ?nish.
The device will get into the corners easily and is light 10
and fast. It is-equally ‘applicable to four feet sidewalks
or wide slabs.
Although I have disclosed herein the best form of the 15
invention known-to me at this time, I reserve the right
to all such modi?cations and changes as may come with
in the scope of the following claim.
What is claimed is:
. A concrete working device-for urging large aggregate 20
toward subgrade and ?nes to the surface for subsequent
- >
(a) an aggregate separating member having opening
therethrough and adapted to enter the plastic mix,
said openings permitting ?nes to Work their way to 25
the surface through the openings of said member,
(b) spaced parallel pivots mounted on the member,
(c) stub shanks pivoted on said pivots,
(d) a pair of handle members each having a straight
lower end and curved upper end,
(a) the lower end of each handle member being hol
low and receiving one of said stub shanks therein,
(1‘) means for securing each said stub shank in one
of said handle members in one of a plurality of
angularly related positions whereby said handle
The device is easy to carry in'the position of FIGURE
1 as it isapproximately 47" by 8'! wide. 7
?nishing’ comprising
ReferencesCited in the ?le of this patent
Eggert _._ _____________ .__ Feb. 25, 1936
Weber ________________ __ Feb. 7, 1939
Tullis ___________ __>__.... Apr. 25, 1939
Mall ______ -a ________ __ July 30, 1940
Schottler ____________ __ Oct. 10,
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Tamblyn ____________ __ Dec. 22,
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Fischer ______________ __ July 25,
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Jackson _______ -2 _____ _; Nov. '9,
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Kadlec _____________ __ Mar. 15,
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Canada ______________ __ July 6,
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