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Патент USA US2404274

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July 1'6, 1946-
5. J., A. CHRISTIE
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2404374
SPECIAL TOOL
Filed March 31, 1944
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ATTORNEYS
Patented July '16, 1946
2,404,274 i
'_vUNITED
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~ STATES
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' SPECIAL
2,404,274
, TOOL
PATENT‘,
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" OFFICE
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, Stanley J. A. Christie, Oshawa, Ontario, Canada
Application March '31, 1944, Serial No. 528,8zl
2_ Claims. (01. 1437132).
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This invention relates to attachments, for ma
chines employinga tiltable table top,. designed to
taken in- conjunction with the accompaying draw,
release and secure the tilting means:
ing.w:.
Inlthe
Up to the presenttimejcertain machines em
ploying a tiltable table .top designed to tilt in two
directionsiand'employing a nut and bolt combina~
tion fonlocking the-table‘ against tilting after it has
been. swung‘ to. desired predetermined position,
have beenemployed'.‘ When, however, a'structure
of this kind is swung to be lockedin a tilted posi
drawing:
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. Figure 1 is‘ a fragmentary, view of the tiltable
table top of a machine illustrating the attachment
according to, the present invention in mounted
position and in engagement with the securing nut.
‘ controlling'the setting of the table top in, adjust-'
a’ble'position;
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tion sloping'downwardly over thelocking nut, it
detail of part of Figure 1.
is difficult to reach the latter and in some cases
practically impossible to do so. , Consequently, by
Figure-3 is a fragmentary sectional view of Fig-7
ure 1 taken substantially along the line 3——3;of
using an ordinary wrenchor a‘ known special tool
to accomplish this'lockingfunction it is very
difficult to get at the locking nut and’ in some
positions of the table, practically impossible.
These difficulties are avoidedin the presentin
vention.
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the present invena
It is therefore an object
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vFigure 2 is an enlarged sectional fragmentary
Figure‘ 1,
and
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Figure 4 is a transverse section taken substan
tially along the line 4—4 of ,Figurel.
: Referring to the drawing:,
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< ‘A indicates the tilting top of a machine‘which,
for instancamay employ aband saw B passing
20 “through the table top ‘A, the latter being tiltable
tion to provide a special attachment, for ma- '
in two directions by means of suitable pivots such
chines employing a tilt top table, which may be
employed to lock the table in its desired adjusted
position regardless as to what angle it may be
desired to swing and secure‘the table. '
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> A further object of the invention is to provide
an attachment'of this kind'which ‘will always
be positioned ready to hand-and‘ therefore can be
operated with facility.
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A still further object of the invention is to _,
provide an attachment of this kind‘ which, will
be maintained in position in engagement with the
locking nut or which may be disengaged there
from and employed as-a special tool for tighten
as the. pivotal axis 10, indicatedin Figurev 1, and
the pivotal'axis represented by the bolt H (illus
trated most clearly in Figure 3).» The pivoting
26 or tilting movement of ‘the'table in respect tothe ,
bolt H is effected by the ?tting C which employs
the quadrant plate 12, carrying the ‘pin or bolt H
which projects from one surface thereof :and'is
designed to pass through the arcuate-slot I 3,in .
the bifurcated mounting piece [3a (Figures 1'
and 3). The swing adjustment of the tabletop
A, in terms of the pivotal axis represented by bolt
II, is effected by tightening or loosening as the
case may be, the nut M on the'bolt ,Il so that
ing‘or loosening other nuts on the machine of _ Ll the table top may be swung to a predetermined
a size corresponding to the socket of the attach
desired position when the nut I4 is loosened and
retained in that position when the nut- M'is
With these and other objects in view the inven
tightened.
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tion generally comprises an attachment, for ma
Tilting of the table in the opposite direction
v about the pivotal axis I0 is accomplished by in-'
chines having a tiltable top, which employs a
ment.
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shank having a swin'gably mounted socket at one
end and an operating member at the other pro
jecting beyond-the table edge, a'holding bracket
on the tiltable top normally holding said shank
and means cooperating between the shank and the
bracket'for retaining the socket in engagement
with. the securing ‘nut’ of the machine.
The
bracket is formed preferably so as to permit de
cluding in the ?tting C, the spaced, parallel, sub
stantially arcuate arms l5 which in fact'carry
the pivot pins H], the latter being pivotally
mounted in the table in any suitable manner such,
5 for instance, as illustrated in Figure 3. Control
of the adjustment of the-table top when swung
about the pivot pins III is effected by meansv of a
bolt or the like l6 projecting from the arms I5
tachment of the shank from mounted position
and passing through arcuate slots l'l, formed in
and also to permit ready ‘mounting thereof, the 50 adjacent bracket plates I8.' By tightening or
shank, when mounted in a bracket,‘ being swing-.
loosening the nut l 9 in each case, swinging of the
able with the table as it is swung to various tilted
tabletop A is permitted in this direction as well as
positions desired.
its ‘securement in .thedesiredposition.
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The invention will be clearly understood by
reference to the following detailed speci?cation
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In the case of a machine such as the kind illus
trated in the present'drawing, the band saw B
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2,404,274
3cm
,1 passes through slots'ln the table (not shown) and
‘outer edge ‘of the tableand readily accessible. I
There is no problem, therefore, presented when
1 the table swings relatively’ to the ‘band saw
using‘ such an attachment as is the case in such
a situation where it is necessary by means of a
{ which latter may pass through a suitable guide 28 '
mounted on one side of the mounting piece l3a.
In order to control the tightening and. loosen
wrench of any desired shape to get in under the
tiltablo top to tighten the securing nut [4.
In addition to providing a most convenient
means for loosening and tightening the securing
nut M the manner in which theattachment is
, ing of the securing nut M_Which is a main con-'
3 trol nut, I provide a socket wrench 2| which by ‘
‘ way of a universal joint action 22 is fastened to
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. the shank. 2.3., forming the body of. the tool. or.
applied readily lends itself to further utility.
*attachmentwhichzfhas ‘a suitable operating
‘ For instance, the attachment may readily be de
dle or the like 24, such as a ratchet handle. The
shank 23 is of such length that it extends from. - ,mounted from the bracket 25 by‘ merely remov
§ the socket 2i to a point beyond the edge of the’ - "ing thepin 29 and swinging the shank 23 to the
line position of Figure 2 whereupon it may
1 tilting table topv A of the machine and thus;
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"’ bepulled away from the nut l4. Thus in the case
"accessible at the edge of this table
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' of ‘other nuts on the machine such as the nuts l9,
To mount the shank 23 I provide a bracket‘??
winch» arerallf oi a‘size similar to the securing nut
it the attachment may be used as a special nut ‘
tightening; or loosening tool.
From the foregoing it-‘is apparent that I have
‘ which is preferably bifurcated-to; form thestWOE "
arms 25 and 21 (see Figure 4) formed'by the cen-_: v‘
3 tral slot 23. . 'A seeming member or pin >29i's' 'de-'_
1 signedto traverse the slot 28 and is'moved to
provided a: useful attachment ‘ for machines’ em
1 and'i'rom‘i'tsnormal» securing-position, suchpas; I
ploying a1 tiltable- top! Wherebyi i'si-facilitated the‘
adjustment of‘ such tabletops regardless of the
by means of screw threading 30 and the operate
1 ing handle 3!. Thus when thessocke't wrench
j portion 21' of theI attachment'i‘s. engaged orr-éthe '
manner in which'theyr‘mayl beitiltedi ‘
What’I' claim as my invention is? I
i securing'nutr I4'the‘ attachment‘ may bei-swungr' -
1'; In a; machine employingraltabl‘e'i top mounted‘
‘ up into the slot728; Thepin: 29 may then; be‘ I on its frame. totiltiin all directions and including
~ a screw securingmeans adjacent the tilting point
3 caused'to- traverse the slot- ZBJby'ScreWing-it into
‘ upon the universal joint so' that the shanki'passes' '
for securing" said'topv in adj'ustediposition, an
adjusting member, fror'loosening-for tightening
position and the shank 23 is therefore: fastened
. in the bracket‘ 25'; .
said‘ securingjmeansi including a" shank; a head
In order to retain the- socket portion 2 l? ofi the
. attaehmentin operative-irelati'onsl‘iip_, to securing
. nut‘M‘I provide on the"; shank 23? a coil‘ spring 32.
‘ This at one end is designed to aibut'v a suitable
“ stop‘ member 33‘whi‘ch may! take the! form of " a ‘ ‘
pivotally'connected'to said shankiiat: one. end to r
' swing. in all directionsaand‘ engageable with said
securing means, the.~opp'osite.-ends1:of‘ said’ shank‘ . .
‘ extending adjacent‘ to one edge; of said tabletop,
collar, and at the other endthe coilspringrisrdea
1 signed to abut a suitable-shoe 34:‘- whi'chis' pref
Q erably formed; with a canrrlike-z surface‘ 315.1. Thus
when the 5socketiporti'on': has-been engaged withv
av bifurcated bracket mounted‘ adjacent thev edge
of said tabletop having parallel’arms' spaced;
apart. from 'one- another, said‘ shankbeing ‘receiv
able between said arms and swingablyr movable;
Y thegsecuringrnut. l'tl'and' thershan'kis then'fswung’ , ' therebetlwen, a detachable. pin member'travers
from the dotted line,v position showrr in. Figure 2’ , ing said‘arms andsaid space; therebetween to re
‘ t‘dthe full’ line: position, slight pressure‘inwardly . tain. said shankin said bracket; said: pin being: ~
upon. the’ coil spring 3zzbyway oiithe shoe 34: will >
, cause thew-shoe to engage the-inwardly directed‘:
‘ surface: of the: bracket: 25 ‘ which. thus: tends. to '
‘ .exertza slightvpressureiupon the: coilZsp-ringi and: . 1
‘ thereby‘retains the'socketrportion idirrpositiver
.- engagementywith: thjezsecuring: nut; 14:,"
Withcthe attachment thusv IIIOU'IItHdK it
mane
iiestly'clea-r that vwhen the‘ tablev is: tilted in. any " '
1 direction. the operating member‘ Z'?tfor the shank.
‘ 23'Wi1l} always'be'readily accessible; In. thisaconm
nection it'shqul'd be noted‘ that the upper end of?
‘ the s1ot-28‘isde?ned by theecurvedj' formation 36.
i ‘which together with the- amount of" clearance, ;
i permitted‘ between the top!v of‘the; shank; 237 and.
the" surface‘ 36 permits‘ all’ necessary relative‘
1 movement between the upper end of the‘: slot and‘.
‘ the shank when the table isitilted'. in a direction
toward or‘ away from: the shank;
As an: illustration. of? the general utility of’ the.
attachment let us assume that‘. the. table‘; A is .
I tilted'sothatthe right hand’ edge shown iniFigurei
‘ 1’v is‘moved! downwardly‘ to 'itsextremezdegree: of‘
I travel‘. In assuming‘ this: position the: belt‘ 31
removable to detaclr said. shanln. and operating
I means connected with saidshank; said >pin;'re1
taining said operating; meansin accessible. posi
tion adjacent the edge; of.‘ said tabletopuregard
less. of: the angular? lrxosiitionv oi thelatterr.
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2. The-combinationiwith aimachineaemploying‘
a table top mounted on its-?ame?o'» tilt‘ in: all
directions.‘ and including a: screw securing means
adjacent. the tilting; point; for: securing: such top ‘ '
injadjustedposition; ofan. adjustingv memloerior:~
loosening; or tightening said; screw= securing‘
means; ‘including a. shank: andla head; the .~ latter."
being? connected to; one; endqof the; shank‘ by: a;
universal: joint, saidzhead being: engageable with;
said securing means, the opposite end of. said;
shank extending; adjacent to: oneedge off said‘t'a- _
ble top; means for: detachably mounting": said.‘
shank in relatively movable. relation: trr saidt'a
ble top and" swingable' therewith, including a; bi
furcated, bracket carried onthe' table- top de'-~
signed to receiveethershankz and‘detachable; se
curing means for retaining. said shank inrmounte
ediposition,_a,coil spring-,anchored on.said.shank,.
‘ the. table» and; any ' ‘slackening 111i the belt: 31. will;
engageable with. said. mountingme-ans and come
pressibleby the; latter to retain; said: head-.in posi.-
‘ be taken up by: suitable’ taking‘ up: mechanism...
- tive engagement-.witlrsaid screvwsecuring means;
‘ driving the pulley; 38v wilt of conrsez‘moveu withv
and operating’ meanson saidshank in accessible
1 wardly with thetableitop: through the pivotfacil- f 3 position adjacent the; edgejof . said. table: top reg-
‘ At the sametimetheshank 23 will swing? down-V-L
itiesprovided‘by the: universal joint 22,. and‘ when. ‘ >
gardless; of. the; angularylocationioithe latter;
‘ the: table2 has‘ reached: its. adjusted‘ positioncthe, ‘
handle 24. of; the attachment will stiIlQbeEat-the;
.S'I‘ANLEY J‘. A...enmsTIE.. ‘
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