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Filed Dec. 15, 1945
2 Sheets-Sheet l
Um 17, 73946, v
Filed Dec. 15, 1945
2 Sheets-Sheet 2
Harv C"- (‘ampbel l _.
Patented Dec. 17, 1946
Harry C. Campbell, Toledo, Ohio
Application December 15, 1945, Serial No. 635,168
2 Claims.
(01. 304-5)
My invention relates to folding horses, or
trestles, of the type disclosed in my U. S. Letters
als, my improved horse, in the preferred em
Patent No. 2,312,956, dated March 2, 1943, and
an improvement.
My instant invention is designed with the pri
bodiment illustrated, comprises, as usual, an elon
gated back member I and a pair of opposed legs
2 at each end of said member'diverging, in each
over which the instant invention is designed as
pair, toward the lower ends thereof. The back
member I and the legs 2 are tubular and prefer
ably of rectangular shape in cross section‘; A pair
horse, or trestle, for use in the building trades
of opposed. beveled notches 3 are provided in
and comprising parts all of which may be in
expensively stamped out of metal by a punch l0 the sides of the back member I adjacent to op
press or the like.
posite ends of said member and in which the
upper ends of the pairs of legs 2 ‘are adapted to
Another object is to provide in such horses im
seat when the horse is unfolded, and as shown,
proved means for maintaining the legs of the
for instance, in Figure 3. The back member I
horse unfolded and rigid, together with means
adapting such horses for greater utility than 15 and the'legs 2 may be formed of any light, strong
metal suitable for stamping and‘bending.
mary object in view of providing an all-metal
present-day horses, or trestles.
Flat feet 4, preferably rectangular, are provided
for the lower ends of the legs 2 with shanks 5
?tting in said ends. The feet 47 are also prefer
Still another object is to simplify the con
nection between the legs and the back member
and to generally strengthen the composite struc
ture, particularly when unfolded.
ably formed of metal.
prehended by my invention, together with the
A compound hinge‘connection is provided be
tween each pair of legs 2 and the back member
precise nature of my improvements and the
I comprising the following: A‘transverserow of
Other and subordinate objects, also com
hinge barrels 6 is formed on the bottom of said
manifold advantages thereof will be readily
understood when the succeeding description and 25 member I adjacent to each end of the same, with
said barrels laterally spaced in the row. The
claims are read with reference to the drawings
hinge barrels 6 are preferably formed by stamp
accompanying and forming part of this speci?ca
In said drawings:
Figure 1 is a view in side elevation of my im
proved horse, or trestle, unfolded,
Figure 2 is a view of the same in end elevation,
Figure 3 is a fragmentary view in perspective,
drawn to an enlarged scale,
ing tongues out of the bottom ofsaid member
I, as best shown in Figure 6, and rolling'said
tongues into barrel form.
The rows of hinge
barrels 6 are aligned with‘the inner, edges of the
notches 3. A similar row of hinge barrelsl‘lmis
, similarly provided on the rearside of each, leg
2 adjacent to the upper ends of ‘the legs.’ A rec
tangular hinge plate 8 with laterally spaced hinge
Figure 4 is a fragmentary view in side eleva
tion, drawn to an enlarged scale, and illustrat~ 35 barrels 9, I0, I I on. three edges’ thereof is provided
for each pair of legs ,2, with the hinge barrels" 9
ing in dotted lines the manner in which the legs
on one edge of plate 8 alternating with and con
of one pair are folded,
necting to the row of hinge barrels 6 by a ,pintle
Figure 5 is a view in vertical transverse'sec
I 2, and the hinge barrels I8, II on the other edges
tion taken on the line 5-5, of Figure 4,‘
40 of said plate 8 similarly connected, by pintles I3,
Figure 6 is a fragmentary view in longitudi
i4 to the hinge barrels ‘I. of the legs '2», respec
nal section taken on the line 6—6 of Figure 5 and
illustrating one of the legs partly folded,
Aswill now be seen, by virtue of the described
Figure 7 is a view in bottom plan of one of the
hinge connection, the legs 2 of each
hinge braces,
pair may be swung toward each other, from un
Figure 8 is a fragmentary view in longitudinal
folded position, on the hinge plates 8 from diverg
section of the shelf drawn to a further enlarged
ing relation in each pair into substantially par
allel relation, and then swung, together with said
Figure 9 is a fragmentary view in rear eleva
plates 8, in pairs, alongside the back member I
tion of one of the legs,
50 substantially parallel with said back.
Figure 10 is a fragmentary view in bottom plan
A hinge brace I5 connects the legs 2 of each’
of the back member, and
pair of legs intermediate the ends of said legs,
Figure 11 is a view in bottom plan of one of the
hinge plates.
and functions to maintain the legs of each pair
Reference being had to the drawings by numer 55 in divergent relation. Each hinge brace I5 com
prises a pair of links I6, I1 of inverted channel
form with inner ends pivotally connected together,
as at I8, and the inner end of one link 16 ar
ranged to overlap the other link 11 to form an
ily understood. By lifting the hooks 28 out of
the keepers 3|, the shelf 26 may be detached
from the hinge braces l5, and by swinging the
brace bars 2| upwardly, the hook ends 24 may
be disengaged from the slots 25. The hinge
by the links are prevented from breaking down in braces may .then be swung upwardly in between
wardly out of aligned relation. The outer ends
the legs 2 of the pairs and said legs swung on the
of the links I6, 11 are pivoted to the rear sides
described compound hinge connection into par
‘of the legs 2, as at IS, in brackets 20 and so that
allel relation in each pair, and then swungin
‘said links l6, l1, may be swung upwardly in the 10 "pairs on said'compoun'dthinge‘connection parallel
plane o'fithe'pair of;legs 2 connected :by the de
to the back member I with the brace ro'ds 2| lying
between the hinge braces l5 and the plates 8 of
Pairs of brace rods 2| are provided for coopera
‘the pairs of legs. To unfold the horse, the oper
tion with the hinge braces Hi to maintain the
ations described in connection with folding are
upwardly breaking joint between said links where
pairs of legs 2 fully unfolded and said pairsof
as will be clear.
legs 2 in planes at substantially a right angle to 15 reversed,
The foregoing will, it is believed, suffice to im
the back member I. The pairs of brace rods2l
part a clear understanding of my invention with
are pivoted, as at 22, to opposite ends of an at
out further explanation.
taching bracket 23 suitably secured to the bottom
Manifestly, the invention, as described, is sus»
of the back member I centrally of said/member.
ceptible of modi?cation without departing from
Hooked outer ends 24 are provided on the brace
the inventive concept, and right is herein-reserved
. rods *2 I for insertion in slots 25 in the links l6,
tosuch modi?cations-asfall within the scope of
l1 ofthe‘hinge braces l5. As best shoWninFig
the appended claims.
~.ure'3,"th_eislots 24,.arespaced apart,—and thepivots
What I" claim is:
-'2»_2.~_connect the inner ends 10f :the pairs of brace
1. A trestle of the class described comprising a
bar-like back member, pairs of legs at opposite
:jrods r2lttogether1so~that
relatively, tostabilize
said :rods
the pairs of legs
ends of said member, compound hinge connec
. 2.:against lateral» twisting.
tions between said member and each pair of legs
A-shelf ‘provided in the
. adapting the legs in each pair to be swung toward
. extend-endwise between the pairs of legs 2. Pref
‘each other and eachpair of legs to be swung to
:erably' the shelf 26 is formed-‘of corrugated metal, ~ ward said member, pairs of hinge'bracesbetween
‘for ~_strengthening .purposes, with the corruga
the legs of 'each pair for preventing swinging of
,-tions~extending,longitudinally of the shelf, and
the legs toward each‘ other and comprising break
said shelf is formed with hook-shaped upstand~
joint connections whereby'said braces are opera
ling‘ end-?anges 21 for reinforcing the ends of the 1 tive to swing said legs toward each other, means
shelf lengthwise. Apairof S-shaped hooks 28
'iareprovidedeat-:eachendof the shelf 26 upon
opposite sides 'of .the longitudinal center of the
..»shelf,;said_hooks having innerends 29 riveted, as
extending betweensaidmember and said braces
for locking-said bracesagainst break joint oper
ation, and means interposed between the braces
of each pair of legs'for- preventing swinging of
at 30, to the ?anges 21 inside said ?anges. The
the legs towardsaid ‘member, the ?rst-mentioned
.-,outer'-ends ,of ‘the ‘hooks 28, are ?tted downwardly 4.0 . means comprising rods pivoted on said member
- instaple-likekeepers
and attached to said braces for detachment
on theinner sides of-eachrlink HS, l'l.
therefrom byrpivotal movement of the rods.
.->It .is to be particularly noted that the brace
_2. A trestle of the class described comprising
:bars 2 l_ , v and the shelf 26, since the pairs of brace
a'bar-like back member, pairs .of legs at oppo
bars 2|“incline ‘downwardly from the back mem
site-ends of said member, compound hinge con
.ber_l to-thehingerbraces l5, and the shelf 26 is
nections between said member and each pair of
> interposed between said braces,
legs adapting the legs in each pair to be swung
.tainthepairs of legs 2 ,infully unfolded position
toward each other and each ‘pair of legs to be
and also ‘function to prevent the hingebraces
swung towardsaid member, pairs of hinge braces
vfrom breaking upWa-r'dlmthereby maintaining the
between the legs ‘of each pair for preventing
:legs of-reachpair ‘in-properly divergent relation.
.Thus, ,a dual safety provision results by virtue
,ofruseof said 'barsll and the shelf 26 so that
,accidentalcollapse of the horse ‘cannot occur.
.If the shelf ,26_>is detached, when it isinot ,de
sired to .used the. same, the brace bars 2! alone
_ swinging of the legs .toward each other and com
. prising break joint connections whereby said
braces are operative to .‘swing said legs toward
, each other, means extending between said mem
_ ber and said braces forlocking said braces against
in vi
break joint operation, and means interposed be
tween the braces of each pair of legs for prevent
:willbe clear. If the bracebars 2! are detached
ing swinging of the legs toward said member, the
from ‘the links .l6, H, ,as through accident, the
second-mentioned means comprising a shelf de
shelf .26 will suffice to prevent the horse from 60 ‘tachably attached tosaid braces.
willgsui?ce to preventcollapse of the horse, as
The manner in which the described horse is
.adapted ‘to be folded andunfolded will beread
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