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Патент USA US2106105

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Jan. .18,
A, P_ M]|_|_ER
' 2,106,105
COMPOSITE PLANK
I
Filed May-l4, 1935
mean/aw“ I
INVENTOR
BY
ATTORNEYS
Patented Jan. 18, 1938
, . ‘
k
\
‘UNITED STATES PATENT.- OFFICE
2,106,105
, COMPOSITE PLANK
Anthony P, Miller, Pleasantville, N. J.
‘Application May 14, 1935, Serial No. 21,338
6 Claims. (01. 94-15’).
This invention relates to composite planks
which may have a wide and varied range of usefulness but which are particularly intended and
peculiarly adapted for use in construction of
5 heavily travelled decking such for instance as the
the longitudinally extending grooves in the tops
of the planks are undercut and a series of wood
or composite ‘blocks disposed transversely of the
grooves for tapered ends to key into the under (a
cuts. With this type of ~ construction although
boardwalks commonly employed at seashore re-
somewhat ‘more expensive originally than ?llers
sorts.
is even less expensive to maintain because a single
' V
These walks are usually elevated so that high
tides may flow under them and while the use
10 of an all concrete walk is satisfactory from a
worn block may be removed and replaced with
out disturbing its fellows. However it is within
the scope of the invention to use elongated
standpoint of structural strength and durability,
wooden or rubber or composition ?llers preformed
such walks are > extremely. hot and uncomfort-
to be slid endwise into the grooves or to use as
able, lack resiliency, are tiring to walk upon and
bestos or similar material which may be pre
consequently ‘discourage promenading and are
15 resultantly detrimental to the business of merchants and amusement concessions on the walk.
A wooden walk is quite comfortable to walk
upon. It is not nearly as hot as concrete but it
formed, molded or pressed. Into» the grooves.
The invention may be more fully understood 15
from the following description in connection with
the accompanying drawing wherein:-—
Fig. 1 is plan view, partly broken away and in
does present a ?re hazard and it is very expen20 Sive to keep in "repair. Furthermore, in many
localities such for instance as Atlantic City, these
boardwalks must be built to sustain very heavy
loads such for instance as the travel of heavy
section illustrating one form of my invention,
Fig. 2 is an enlarged view in transverse section 20
on the line 2--2 of Fig. l,
Fig_ 3 is a, view similar to Fig, 1 illustrating a
modi?cation, and
25 in mind the walks1 are built of extremely heavy,
on the line 4-4‘ of Fig.3; '
?re engines Over-them in emergencies- With this
Fig. 4 is an enlarged transverse sectional view
25
expensive Wooden Planking which must be re“
placed as Soon 315 ' the Surface‘ thereof becomes
sphmiered or‘ spht or “(011m down’ 01' otherfmse
While as vabove suggested the grooves in the
upper surface of the concrete bases of the planks
may receive any suitable type of removable re
dgtenora'tes to .a’ condition where pedestrians
silient tread member such as elongated wood or
30 mlght trip or imure themselvfas on tfhe walk-
rubber members or may be filled ‘with any suit- ~ 9
.An object of. the present Invention 15 to pro‘
able resilient wear resisting material which will
Vlde 9‘ cqmpoglte plank for use at such board‘
afford the desired attraction, I have for illuse
walks whmh W111 he even strffger .than .the heavy
trative purposes shown only the construction in
Wood?“ planks now ‘511111129376 ?rms? gnu be sub:
which a multiplicity of transversely disposed,
35 sfanmny?re'pmf’ W 10h
no .ecome un-
uly hot in the sun and yet which will very ma-
laterally abutting wooden blocks are employed
to afford the desired tread surface
terially reduce the cost of maintenance of the
Referring more particularly to F'?gs 1 and 2
Waikr'eauue of‘ the invention is the use of a plank
of the drawing" 7»! ' represents the _??’° elongated‘
40 having a base of concrete or similar material, gasedoffhe P133511! 311d 1. the refslhsgt ?élerior 40
t e reception 0
read mem ers or wear mem-
,
’
a
,
bers of inexpensive construction which may be fa? extgndmf ?gwgh?uttlts gné?'fogrefera'bhi
readily removed and replaced when they become
W1 h un frcu‘l :1 e :31 5d 21 a o h
e genera
45 worn. The planks may be spaced apart in the cr?I§;'S‘%3u1°na_ 2“: a1; 1: zlf’ews ocz‘iwliv-ubb
fashion of the wood planking now used in order
to provide ventilation, drainage and attraction.
e ,t 3‘ pm’ 5
y eThe (iorées
any _Sul _a e composl Ion‘
y
8; 9:;
pon
45
1
A walk constructed of these planks is comfort- ltvne1t111¢1k11ra1$la saecttéoiilaé ghggestcgoti?svgiznssg
able to walk upon due to the resiliency of the
50 tread members and the only elements which are
subject to wear under foot tra?ic or wheel traf?c are the removable tread pieces which are in
the ?rst place inexpensive and which in the
second place may be readily replaced when worn.
55
In accordance with one form of the invention
1011a
5
_
_ -
cated in this recess they will be keyed therein. 50
They are further preferably Secured 1n the base
by a thickness of waterproof Cement 01‘ mastic
cement 4 located under the filler pieces and
around the ends thereof, thus keeping out mois
ture and effectively securing the ?ller pieces in 55
2
2,106,105
place. This mastic may likewise be employed
between the ?ller blocks if desired.
To anchor the planks I preferably employ nails
5 driven into joists or other supports 6 and hav
ing heads ‘I thereon which are forced into longi~
tudinally extending grooves 8 in the sides of the
plank. In driving the nails they are positioned
close to the planks and when driven in‘ su?i
ciently are bent laterally to project the heads of
the nails into the grooves. Adjacent planks are
thus necessarily spaced a distance apart at least
as great as the diameter of the shanks of the
description or shown in the accompanying draw
ing shall be interpreted as illustrative and not
in a limiting sense.
Having thus described my invention, what I
claim as new and desire to secure by Letters
Patent is:—
1. A composite plank, including a preformed
base having a recess in its upper face extending
throughout its length and transversely posi
tioned preformed ?ller pieces keyed in the recess, 10
said
base
having longitudinally extending
grooves in its side edges adapted to receive the
spikes or nails.
heads
of securing devices driven into a support
In the modi?cation illustrated in Figs. 3 and '
on which the plank is located.
15 4 of the drawing the plank increased width pro
2. A composite plank including a base having
vides room for three parallel grooves l4 corre—
a series of parallel recesses in its upper face,
sponding to the groove 3. Grooves 9 are formed
in the upper face of the base to give to the plank . ?ller pieces keyed in the recesses, said base hav
20
the appearance of a series of single planks, these
grooves being of a width corresponding to the
spacing of the single planks shown in Fig. 1.
While three longitudinal tread receiving re
cesses M are shown, the plank'may have two,
25
four or more if desired.
In the bottom of the grooves 9 drain openings
ID are provided and these drain openings are
preferably given the downwardly ?ared or coni
cal shape shown to prevent them from clogging.
The ?ller pieces 2 when of wood are preferably
30
formed with the grain running vertically and.
may be treated in any desired manner to length
en their wearing qualities.
35
When a ?ller piece is worn or rotted, it can
be dug out of the recess and a three part ?ller
piece inserted. This is illustrated in Fig. 1 of
the drawing and the parts of the ?ller piece are
given the reference characters H, l2 and I 3.
The end sections II and I2 have tapered ends
to key in: the recess 3 and the center section l3
40 when forced or wedged into position between
them insures their interlocking engagement with
the base.
'.
'
It will thus be seen that my improved plank
can be easily and cheaply kept in repair reduc
45 ing the cost of maintenance to a minimum.
These planks may be conveniently used for the
replacement of one of the wooden planks now
employed.
- It will thus be seen that there is herein de
50 scribed an article in whichthe several features
of this invention are embodied, and which article
in its action attains the various objects of the
invention and is well suited to meet the require
ments of practical use.
55
-
.
l
.
As many changes could be made in the above
construction, and many apparently widely differ-v
ent embodiments of this invention could be made
without departing from the scope thereof, it is
intended that all matter contained in the above
ing longitudinal grooves in its upper face be
tween the recesses to simulate separate planks
and drain openings in the bottoms of the grooves. 20
.3. A composite plank comprising a base hav
ing a dove-tailed recess in its-upper face extend
ing throughout its length and removable ?ller
pieces in the recess at least one of said ?ller pieces
consisting of end sections shaped to ?tthe side
walls of the recess and a center section between
the end sections holding them in locked engagee
ment with the base.
4. A multiple composite plank including a wide
?at preformed base having a plurality of longi
tudinally extending recesses in its upper face,
tread members removably secured in said re
cesses, the spaces between said tread members
being relatively narrow and said base having
grooves in the spaces between the tread members
whereby to simulate separated composite planks.
5. A multiple composite plank including a
wide ?at preformed base having a plurality of
longitudinally extending recesses in its upper
face, tread members removably secured in said
recesses, the spaces between said tread members
being relatively narrow and said base having
grooves in the spaces between the ‘tread mem
bers. whereby to simulate separated composite
planks, said last mentioned grooves having drain 45
holes therein.
'
6. A multiple composite plank including a wide
?at preformed base having a plurality of longi
tudinally extending recesses in its upper face,
tread members removably secured in said re
50
cesses, the spaces between said tread members
being relatively narrow and said base having
grooves in the spaces between the’ tread mem
bers whereby to simulate separated composite
planks, the edges of said base having recesses
therein adapted to receive the heads of securing
devices for retaining the composite plank in posi
tion.
ANTHONY P. MILLER.
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