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Патент USA US2406448

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Aug. 27, 1946.
2,406,448 ,
Filed -June 4,l 1940
4 Shee'ts-Sheet. 1
- Aug. 2.7,> 1946.
' 2,406,448
i ‘
Filed June . 4, 1940
4 sheets-sheet 2
. W/zedf »
Aug. v27, 1946.
Filed June 4, l194@
4 Sheets-Sheet 5
âw ä_
Aug. 27, 1946.
4 sheets-sheet 4
' l Files, June 4, 1940
@e0/‘ge’ ¿Y W/fedl‘
Patented Aug. 27, 1946
George G. Wheat, Brooklyn, N, Y.
` Application June 4, 1940,y Serial No. 338,710
2 claims. (c1. eef-4)"
2 v
This invention relates to -panels to be assem
showingtheV manner of adhesivelyfuniting the n
bled and united to form hollow structures, and
same and providing tunnels between the _boards
while they may be used in the construction of
or adjacent shocks or panels for the passage of
different forms of structures they are particularn>
bly adapted for use as shocks in constructing ship
ping cases, boxes or crates.
,tie rods.
Figure 4 is a perspective view, on an enlarged n l
scale» and partly'broken away, of a board ‘or
yplank showing the mannerV of arranging mortises '
It is an object of the invention to provide an
improved boXQor case shook or panel consisting
in the ends thereof'and engaging tenons orsplines
of 'a plurality of wood pieces, such as boards or y
therein to connect the boards of afshook or ad
jacent shooks and arrange Vthe mortise with
planks, assembled in-edgewise joined relation by
‘tongues and grooves, and the provision of means
tunnels- for the passage of tie rods.
' `
to engage and extend transversely of the width ,
t Figure 5 is a perspective view` offashipping
of boards or planks to retain them in edgewise
assembled relation under >a compression force
acting against the resiliency of the wood and
adapted to distributeV and take up uniformly
throughout the entire panel or shook the force
case constructed of shooks, shown in Figure l.
Figure 6 is a perspective view on an enlarged
scaleA and broken away, of a> corner portion of
the case shown in' Figure 5, to show the manner
of uniting the members of the case.
of lateral stresses transmitted thereto;
Figurel'l is a perspective View
While the shook or panel is adapted for use in T
liedv construction'i’t-of a lshipping
the construction ofl different structures,_ and is 20 from shooks’shownv in Figure 1.
showing amodi#
,_ 4 ,v
particularly adapted for use in the construction
of shipping cases, boxes or crates wherein a
Figure 8` isl a Isectional view on an enlarged
.scaletake'n substantially on the line 8,-8 offFig- _
shook or panel, or two or more of said shooksor
',ure 7 to show the connecting `of members to the,
panels assembled in edgewise relation, constitutethe sides, top and bottom lof the structure, and
wherein means engaging and extending trans
versely of the width of the boards or planks _serve
to joint them in edgewise relation and take up
in the shook or panel the stresses of forces trans
mitted laterally thereto, they also serve to secure ’
¿shocks or panelsto constitute skids of the ship-v
ping case.V
Figure 9 is a View `similar to Figures snowing
a modified construction of members connected to
the shooks or panels to >constitute skids forv ay
shipping case. j
and unite the shocks assembled in the case or
Figure loris a sectionaluview on an enlarged 1
scale taken ‘substantially’ onthe line lll-,I0 of
crate while maintaining the shook boards under
Figure 'l> to show the manner of connecting a
a compression force and effect an equalized or
shook ,or> shocks constitutingthe top of a ship- y
balanced distribution of strength throughout the
ping case to a shook orrshooks constituting a side
case or crate and uniformly distribute and take 35
up through all the partsof the case lor crate any
of the shipping case.- l
, ’
Figure 11 is a perspective 'view showing the
stress or stresses of a load therein exerted on a
shooks assembled’in a further modified construc
part or parts of the case or crate, and thus adapt
tion of shipping case.
ing the shooks or panels to the construction of
l Figure 12 is a sectional view‘in perspective on
a shipping case, box or crate which is not only 40 an enlarged scale,r of a‘ portion of the VAcase shown
simple in construction andl low in cost but highly
in> Figure l1, the section being taken substan
eiiicient in use.
tially on the line l2,-`|2 of said Figure lltovshow
Other objects and advantages of the invention
the manner ,of connecting shooks constituting the
will hereinafter appean»
In the drawings accompanying and forminga
part of this application,
top andvfbottomof a shipping. case to the shocks
or panels constituting, the sides thereof.
FigurelS ~is airagmentary view‘in .perspective f
Figure 1 is- a front elevation of- 'my improved
on an enlarged lscale and partlybroken away, of
shook or panel and showing the sameinjedge
‘ ¿avgc’ornerportion of ‘the casingshownin Figure
wise assembled relation under- the :force of a
compression pressure by tie rods. ,
> -
lFigure 2 is a view on an enlarged 'scale looking
at the end of the shook or panel shown in Fig
ure 5.
11 `to show- the .. niannerì» of ,connecting shocksv
' >constituting the sides to the top of the shipping
case; and
' „
>Figure 14 is a fragmentary view in perspective
on an enlarged scale and partly shown in section,
Figure 3 is an end elevation, on an enlarged
the section being taken through the case between
scale, of a pair of the boards of a shook or panel 55 adjacent shooks, as ony the line Ill-'I4 of Figure
Y 2,406,448
case the nuts are removedfrom the tie rods and
_ 11, and showing a modified arrangement 'ofv con- l
necting the shooks constituting the top and 'bot
Will overlie the ends of the tunnels vand others of
tom of a shipping case to a shook constituting a
m side of the case andthe connecting of members
n to said shook constituting a side of the case and
constituting skids for the case.
the shocks positioned so that certain of the shocks '
the shocks connected thereto by extending the
ends of the tie rods through the portions of thev
shocks overlying the ends of the tunnels.
VIn Figure 5 there is shown a shipping case or
The shook or >panel as shown in Figure'_ 1 is
f constructed of wood pieces, such as boards or
box constructed in vaccordance with the present
l planks IA, hayinggparallel pairs o_f,_grooves; l5 ar
1invention,from:shooksfas‘shev/in; in Figure l. As
" ranged in oneilongitudinal edge fini the direction l0 fishes/nf; each ,ofîthe sideimembersïof the case in
cludes a pair of shocks a, a', each of the end
1 of thegrain of the boards or; planks and a pair
` ofV parallel tongues I6 extending along the oppo- i, \niernbers a pairV of shocks b, b’; and the top and
bottom members each include a pair ci shocks
“ÍQÈ‘CZ «1n assembling the members of the case the
grain.> The boards or vplanks«are«îioinedlineedge
` Wise relation by >engaging the tongues ormone! «end and side members are ñrst assembled by posi
y -'board in the grooves of an adjacent-board. "_Ifp l' ì ,tieni-ngthegend members Vwith the face adjacent
site longitudinal edge in the direction >of the
'the ends'engaging or abutting the opposite lon
seal the joint between the tongues _and'grooves`
_z the grooves are made of' greater-depthßthanfthe » ' lfgitudinall edges `cìf‘the side members and with the
i distance or extent to which the tonguesèpr‘oäect . _ Alongitudinal edges of the end members spaced
from the board and theiportion’intermediate'thé
iromtheends of the side members, as shown at
î tongues, as et. Il, isin aplane inwardly _fram the
1 LDOI‘ÍÜÍQIILSîtï' buiwardilyjfrom the'wneuès?wherebr
¿secured? irr‘sai-d'- position -by'tie “rc'ds‘îë '_' engaged
‘ -çwhen'the boards 'are‘joined ’theçbottornióffthe
y »groovesWilI-be spacedtfrem the’to'ngues‘j asfshïown
~ îin‘the tunnels öft't'h’ei side'rnernbers,` theI tief rods »
- beingï _of a lengt-hjgre'ater e than the Width o'iî the
23' in Figure 6,»the endend side membersfbeing
ì Vat I8, and the portion intermediate. the"tongues g5 ` two*A sheGiesen?A a' ' 'and' extended-'through“openings
1 'will-bespa'ced from thefopposedgportion“ofjthe '='
"bo/arde' a-_n adhesive,y Asu’chjass jglue," _is ïdo'ctoreîd `
ïrnerrgbersiA to ‘ the `iside«members offthejï 'casearia
j ‘onto ‘the - surface jbetwe'en I the' tongues fof * the
"boardszand’ it may _also be 'applied r1.5021ih'eîeís'lee „30 `boards"t'l'ier'ec'sfr underja*compressionjforce~ fjThe
¿portion '~ between' the ¿grooves vv‘the , gglue ,a s_'jithe ‘ '
boards arejoined and" drawn JVtogetherî`~_oozing
»fromi'betvveen the portion” t1 '_.of .thefboa'rdsralong
shocks c,- 4ç’l oiN4 the topi an*d"bottom-mernbers - are
*thenîposit'ioned‘ betweeni the ‘ en'd 'portions' ‘off the
' side‘mernbers yprojecting"bevond’the‘side'f_e’eliges‘oi
` the ¿end members, ras s at`__2¿` _5, _andi the `sideïeiigespf
„35 :the 'side i members engaging the~top z and vbottom
Ymembers, as atl-26, andthe'toparrd'bottomirriem-V
'bers-'secured 'in 'such'p'osition ‘joyY tie rods?siniila'r '
*to* -the tiefro'ds'l‘22 '_ extendedthrough Ltl:1e“tu1"lnels _
iin-*the end,l top :and ¿bottom‘mernbers >theftie: rods
‘ « transmitted laterally >to ¿the Avshook for; panel‘the _ 1 40 ¿extended through theiîtunnels'ofth'e top and'botd
‘toínrnembersi'being' extended'through'Qpeningsin
j vi-,i'rrcngli> the' tunnels in theY end membersextended
of the‘boards
fleeing Idis- ‘
lilQSedmildww'the'thîckness -ofrthe woeîd
"the side "members, Iand fthe 'tie 'rods extended
Y 1 ‘intermediate,thetolieuesandgsrooves and îbeiiïe ` Y through îopenings‘in' the' top gnd'bottom members',
__arid‘nuts‘ threaded onto said tie‘ro'ds '_also‘drawing
î fof aVV Width substantially ' equal I‘to’ the ‘spacefbel __
ï iweenthe bases of the tongues and grooves, as:
` Vshown
H), and extend intotheboards,.,as_iridi_ catedatElS’, 'the .side Walls ,of the _mortisesbeing
. chamferedand decline to the bottom .pfîthe nior
ythe top-‘andbottom‘members' toitheî end members
andfholding'the ‘shooks‘of the .endmembers ,under
` ' î'lîyt the >Ya'rrangeinent `-df i mortising '.tenons .into
` Lise, as Vat |795'. ¿Tenons orisplines '.2i3,.^p_1ie'_ rably __ 50 "the'ern'ds jo‘vf’t'heîshoóks therefisfprovided _a "deep
fcord l‘or Içbe'am eiïect -Withftl'le `-result :thatîthe `
¿Wood pieces, _ of layvidthjl_essi than'thfe depth'
1 mortis'es _are :engaged inthe mortisesgandßthe
_ `space ‘b_etWeenjtheîbottom of'the___mortis_ef_anïi ‘
v ì _tenons or splines 'Constitutineïtunnels‘_extending
vshocks are equal in'strength'and by ‘drawing the
vshocks-_together by'theitiero‘ds’and thenbyplac- f
ingthe" boards/of'. the v'shooksgurider a compression
Í transversely Of the Widthqof the shook. "‘The'rOIlje §55 ‘force any‘lateral stresses; such as impacts against
§~_edge of the. tenons engagedin anïlçoppose‘ditoithe »
` ï ‘bottom -of‘ the rnori'dsejis.f'recessedV as _at"'_2l¿_`_t_l'.1e
íthesame,l are ’distributed and taken _up uniformly
l side-Walls 'of the'recesses declíning'flîßmthej sides
throughout the l_entire shook. Also ‘by the _ar
rangement o_f’thetie rods' in uniting’the elements
' ¿ _ of the tenons to the bottom_o‘f ‘the ‘recessjas atV
_ofthe case the tie, rods will' be'funder' tension and
1 ZIE 'Tfieî'boardsiincassembling aneiioîninedf >the @-5) 'thejwood ,of the 'shocks act under compression
same :by >the rtongues' and grooves,r „as jshown `in '
andthe pull 'ofthe Ltie ro'dsvïill :nct'fbeagainst Y Y
1 Figurej 2, „are subjected edgewise_ofithegforcegoia l
one another fbutagainst the resiliency‘ciitheïtvood
i <ë0mpressiqn;pressi1re against .thegresilìençyjò'f_
withthe result that there _is Van egualizedprïbal- Y
¢ ï ithefwoo‘d ;of_:the‘boards '.by'iorcibly„drawing :the . ‘anced 'distribution of strengthv a'ndjgany’stresses
communicated to .a member of- the 'case _isi trans
' ¿"‘boardsftogetherlby suitableîmeaIl-SL"Such ¿25j-'tie _65
y rods 22 extendedthrcughv the'm'ertise `timnels “ _the
te and
taken upm
of. the
members or
of" _`
v ' „and nuts‘th?eaide‘dento.Said I‘Odsáridre'tairredin '
_ fthe Woodof' thekshooks is'placed under sheer; nor _ .
ï Seidhonditian „until'they lare ite Lbe'fusß.I `
>:airegtlri'e ‘shooksfplac‘ed under'jiin'di.ley1 stress atthe
l construction’óf eholle‘w ,Strußturesueh
ì pine Aor packinsjícàseßbex' -orA crate,_ ___ h .shQQkS _70 terminals-cry r'edgesf_thereof, as in__securing Y'the
_ or'fpanelsjas Ashown'in' Figure?l; -a-refa a'ptedf'fto ' shocks; in thercavsethere is noLpenetra'ti'oniand
disruptive 'eiïect of “the >marginal ,portions idffthe
` be _used singly or in multiple in the construction
-oiî ïarshippin’g case, i-boxior crate _of ‘rectangular f shocks-_by'fasteningmeans such as nails, screws
andthe like. „The_tie rodsextendthroughgthe
_ 'forrriß‘arr'wwhenlenly one'offthe sheoksjis‘toibe
l t futilizeqiorìthesides, endstj'top'andäqottoinjof the ‘,7 5 îs'hjooks at -thecorn-ers of'theîcasejandftdprevent `
the nuts as they are screwed onto the tie rods
to the end members by tie rods 22o extended.
exerting a crushing and disruptive effect upon the
through the tunnels in the shocks of the top
wood of the shocks, and to also protect the Cor
members and the angle iron members 3l and nuts
ners metallic cap members 21` are engaged upon
threaded onto the ends thereof at the outer side
the comers of the case to embrace the side and Ul of the angle iron members, and the bottom mem
end members and the top or bottom member, the ,
ber is united to the side members by'tie rods 22d
tie rods being extended through openings in said
caps and the nuts abutting the same.
To further reinforce and strengthen the case, tie
rods are extended longitudinally through tunnels
arranged in the side, tcp and bottom members of
the case.
These ro-ds are -shown as extended
extended throughv the mortise tunnel and the
shocks of the bottom member and through the
shocks of the side members a, a', a2, a3 of the
To reinforce the case and adaptfit to be readily '
moved, as on rollers, the case is -provided with
longitudinally intermediate the shooks, as’at 28.
To provide tunnels between the shocks for the
skids 33, one extending longitudinally below the
Figure 3, is removed from the lend member cf the
shook and the board is provided with’a groove
ing longtiudinally of the bottom member inter
mediate the'ends of the shocks thereof. While
the skids may consist of one niecetc reduce the
edge of 'each side member of the case and a part
passage of said rods a tongue, as shown at lßa in 15 of the bottom case member and one skidextend
I5a similar to the grooves I5 adapted to be 0p
posed to a groove I5 in the edge of the adjacent
‘cost they are, as shown in Figures 8 and 9, con~
shook providing a tunnel cfgreater width in the 20 structed of three memberalpreferably wood, in
directicnrof the width of the boards and permit
sidewise relation, each member being of a thick-f
ting the tie rods to be displaced laterally to avoid
tie rods extending through the boards or between
the shocks of case members in someforms of the
case. If desired, tie rods, as the rods 23,' may be
» gether by bolts 3d.4 In the arrangement of skids
extended longitudinally through tunnels arranged
members of Vthe'skids and the longitudinal edges
intermediate the side edges of boards of the
shooks, for which purpose a tongue Itet is 'removed
from one of the intermediate boards and provided
are iianged laterally to extend »in opposite direc
tions, as shown in 35’ and 3d”, whereby one
flange of one plate will cverlie one cuter mem
With a groove, as indicated at Iâb in Figure 3. L
ber of the skid and the flange of the other platev
overlie thevother cuter member of the skid, andV
The tie rods 28 extending through the ends of the
shocks having the tenons mcrtised therein, as
shown in Figure 6, function to draw. the top and
bottom members adjacent the side edges and
intermediate the length thereof to the side mem
bers of the case, draw the side members adja
cent theside edges and intermediate the length to
the ends of the end members of the case and draw '
nessk less than the Width thereof and secured to
shcwn in Figure 9, plates 35A of greater width than
the skid members are interposed between the»
. the flanges at the opposite edges of the plate over
lying the intermediate member of the skids. To "
connect the skids to the case andî further rein'-V
force and strengthen the case tie rods 28' are ex
tended ‘through tunnels, as at ltiß, formed Vbe
tween the adjacent shocks of the side members
of the case, the nut or head at one end of the tie
the end members adjacent the side edges 4and
rods being-countershunk into the skids andv the
intermediate the length thereof to the ends of the 40 opposite ends of the tie'r'ods extended through
top and bottom members, said tie rods are ex
tended through a leg of angle iron members 2B,
the angle members engaging over the joined por
tions of shocks and the side marginal portions of
the case members, as 4clearly shown in Figures 5
and 6.
In Figure ’7 there is shown a niodiiied arrange
ment of shipping case or crate constructed from
shooks, as shown in Figure 1, and utilizing four of
said shocks a., a', a2 and a3 in the side members, ’
four shocks c, c', c2 and c3 in the tcp and bottom
members, and two shocks b, b’ in the end mem
` bers.
Angle iron members 3i) are engaged over
the angle at the juncture of the side members with ,
the end members and angle iron‘members 3| and
32 engaged over the angle at the juncture of theV
tcpmember with the end members and side mem- .
bers, respectively, the angle iron members being
secured by suitable means, such as screws. 4; In
constructing the case the side members are united
' to the end members by tie rods 22a extended
v through the mortise tunnels of the shocks similar
to the tie rods 22.’ in the Figure 5 arrangement,
the angle iron members 32 and nuts threaded >`
thereon. The intermediate skid is connected to
the case by tie rods 23” extended through the
tunnel, as atÀ |5a, between the shocks of the end ~
members and said skid with the nut or head at
one end ccuntersunk into the skid and the op;
posite end cf the tie rods extended through the'
angle ironvmembers 3l and nuts threaded there- "
on. A board may be secured to the- ends of the
skids to close the space at the bottom of the case
between the skids to give a ñnished appearance to` _ `
the case.>
In Figures 1l to lli there is shownía further i Y
modified embodiment of the Y invention con
structed from shooks, as shown in Figure l. The '
side, top and bottom members of the case are
constructed of Áfour shocks and the end mem
bers oftwc> shocks the same as in Figure 7, the
side `and end members engaging upon the bottom
member with the top member engaging upon the
Vendsv of the side and end members. >Instead of
the side and end members beingy arranged in
abutting relation and an angle iron >engaged
and through the angle iron members 3€)r and vthe
thereover, `as in the Figure 7 arramgement,` angleV y
shocks as well as the boards of the 'shocks being 65 iron members 36’ through which thejsidev andA
drawn together under a compression force by nuts
end members are united are arranged so that the
threaded onto the tie rods at the outer side of the
outer face of ¿ one leg >of said angle iron mem
angle iron members. The end members are se
bers engages Aa side edge oi the side members
cured tc the side members by tie rods 22h extended
of the case and the'other leg engages the side
through the tunnels in the shocks of the end 70 edge of an ’end member ofthe case, as clearly
members and through the angle iron members 30
shown in Figure 13, and the tie rods 22a ex
and nuts threaded onto the ends thereof to draw
tended through the mortise tunnels of the side
togetherunder a compression force the shocks
members and the tie rods 22b extended through
and the boards of the shocks of the end members
the mortise tunnels in the end members are
cf the case. The top member of the case is united 75 extended through openings in said angle iron
the ftie: rodsr ToV further rstrengtljíen¿the case, a
¿ 'ine assieme members e 31" and
reinforcing member., maybe interposed between
the »top member and the side membersof the
case, as'shown at 4l! in Figure 14.
321’ arey engaged'over thel angles formed at‘the
juncture of the tcpinembers with the end andk
side members. The tie 'rods 2E” extending through "
the mor't'i‘se 'tunnels in the' shocks in the top
Having described my invention, I> claim:
member of the casev »are extended through the
‘angle iron members «'Sl’ to unite it? to the end
members, and the bottom lmember is connected
to 'the' end members by extending the vtie rods
22d in the mortise tunnels of the shocks thereof
tlu'o'ughVY the shocks hub’ of the »end members
of ‘the case. -‘The :case is »also provided With'ski‘dg
i 1.7In av shook or panel, a plurality of Wood
pieces of equal length having a pair of spaced Y
*tongues on onerlongitudinal edge and a pair of
grooves in the opposite longitudinal edge and' a
Wood piece havinga tongue and a groove onone
longitudinal Yedge and a pair' of grooves in the
opposite longitudinal edge, and all of the wood l
3%" extending >long-itudinally o'í'the case below the -
pieces having a mortise in the Iopposite endsiéXf
side nieinbersßand ‘intermediate the‘bettom mein
ber. u’To yconnect the fs'lrids- extending below the 15
side ineinbers '_to ‘and reinforce »the case the tie
rods »28" 'extending through the tunnels between
the v'shocks ï‘of‘ the side- >members are `extended
through said skids with the nut cr' h_ead at oneV
tending in the direction of the width and trans
endv ‘countersunk' int-o ¿the skids, las shown *in
Figures 1'2v and i4, the oppositerends v‘of- thetie
, rods‘eâtending throughythe angle iron members
52’1 The Yintermediate skid is connected vto the '
case by 'the `'tie rods ‘28"’ extended through l¿the
vtunnels between the "shocks of the gend members
dfï‘th‘e -case kar`1‘ài7~the 'angle v'iron' members f3'l".Y Y'To
make the oase pilier proofk angular caps ‘2l are
engaged -o've‘r the yemmers Ifformedfby vthe side and
end members _with ehe «tcp and-'bottom members
tlie‘gca-se, said l’caps being secured 'to thee'a-se
versely of the grain thereofrmidway the tinck-,_V
ness of thewood piecesì and said Wood pieces as-
sembled and yjoined in ed'geW-ise relation bythe
tongues and grooves with the mortises disposed in
alinernent and the oneâvvood piece With the-.tongue
and groove on the saine longitudinal edge die»
posed intermediate the assembled Wood pieces and
said groove opposed toa groove in the edge of
the adjacent Wood piece and forming therewith
ahpassage extending in a direction longitudinally
of lsaid Wood pieces, and splines of a Width less
than Vthe depth of and engaged in the mortises
toV extendftransversely of the lassembled Woodl l
piecesA adapted to take up the stresses of .forcesy
_transmitted laterally of the assembled wood
30 pieces, and-said splines spaced from and >forin
ing with thebottom portion of the mortises- tun
by zbelts/1,58 extended ‘inwardly through Vsaid cap
nels Yextending transversely of the assembled
threaded ontofthe ïbolts Within the
pieces adapted for the engagement of means to
case. -Tog‘faci-lïitate securing fthe lnuts onto said(
draw theassembled wood pieces together in edge-`
`boltsffroin _the vinterior of the Lcase"it is provided
v/ise relation.
With >a'n _access "openingv having a hinged closure,
'as ¿shown-'atti arranged with means 'to secure
the lclosi-irefin closed position; as by afpadlocl;
V“or the'flilïe. "This 'opening .to the c'a’se may also
beV utilized fior the'passage *ci articlesjto ybe en
closedïin‘the case. ¿
" '
' Iníth'e arrangementïof cases Asloffívvn in 'Figures
_Tl the ’top and _.bottolnfmembers¿are also y
unite“ fthe “side ïn'i‘crnbers ‘by the :tie jrods '28@
extended through the tunnels between the-shoóks
di ¿said top and bottom members, said ltie rodsV
A of Sth'e't'op ’member extending through the angle
iron, ‘nienibers'ää’ and "of 'theY bottom member
t rough theshoólçs‘of the ïsidemembers, Washers
2. In a shook’ or panel forV cases and the like; a
»plurality of sections adapted to be disposed in
edgevvise‘ relation in theshook or panel, eaclisec-ç"
tionv consistingl of a plurality Iof wood Pieces hav-_
ing a mortiserin the opposite >ends extending in
the >direct-ion -of the Width and transversely Yof
the `grain of the Wood Apieces and having a pair ’
of ¿tongues on -one edgel and -a vpair of Ygrooves »in
the 4opposite edge extending longitudinallyjand `in
the'd'irection of the grain of the -Wood pieces, and
afwo'odrpiece to constitute the end Wood piece of>
a section having a tongue and a groove nextend
ing parallelly of 'the tong-ue in- the outer edge
vthereof and said groove adapted to be disposed
' being ïintei'posed'be‘tween the nuts and 'heads of 50 opposite a groove in lthe outer edgeiof the Wood
the' 4"cie/‘rooie to prevent undue compression of
_thewood of the shocks. In the arrangement of
the `shocks of the Itop, bottom andA side -members
‘as ‘shown `'in Figures 7 and Il vvhereinthe tie
" ‘rods 23', :28a intersecteachfotlienî'as shown'lin
pieceßa‘tthe end ofthe adjacent section and form
'therewith a passage extending longitudinally oi’
thevvood pieces of the sections, and the wood
pieces of thejseçtions joined in edgewise relation
l _by the tongues and grooves with the mortises dis
posed in alinement, splines of -ajlength ’equal vto
the Width ofthe shook Asections and `>of aWidt-h
tunnels between ‘the shocks -o’í 'increased Width '
less than the depth of themortises in -the ends ’
one fof ‘said 'tie rodsa for instance the ‘_tie rods
Figure fili, 'by 'the arrangement >of making >the
vof the wood vpieces engaged in the Vmortises and
extending through 'the tunnels between the
Y shocks-»df Èt'h'eside members ’off the case, maybe 60 extending 'transversely fof " the sections Yof the
readily ffdispo'sed‘at'thesi'de of `>the tierods ex " shook and positioned inthe mortises in Aspaced
' tended lthrough fthe rztunnelsfbetween 'the ~shocks
di :the ‘top and -fbottom members'of the case.
ì‘ils’oïtoïdisplace'theïtie rods'in the mortis'e tun-V
relation to >and ¿forming with :the bottom `portion
thereof tunnels extendingtransverselyï ofthe plu~
rality. Qf'v‘shook sections, >and means extendedY
nels ‘o‘ífthe shook-'sL of #one member ¿of the case 675 through lsaidl tunnels adapted tof connect the ~ sec
tions of >the vshook in edgewise relation and >place
relative _to another member ‘ofthe case andlthus
-nmilitate the >s'crevvingdf `the `nuts onto the tie
and f-hold'ïth‘e `plurality of sections 4of îthe l'shook
rods -in v»the »moitise îtunnels, fthe mortise - tunnels
underan edgewise compressionïforce.
areVí ofiincreasedßwidthërelative -ïto ïth'e diameter of
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