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Патент USA US2404880

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July ‘30, 1946.
G. |_. LATEUR
2,404,880
ADJUSTABLE SHIP CURVE
Filed March 2'7, 1944
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Patented July 30, 1946
2,404,880
UNITED STATES PATENTL'OFFICE
.,
..
2,4045880
ADJUSTABLE SHIP CURVE
T" Gaston‘L'Lateur, Menlo Bark, Calif.
’ Application :March 27,>1944;SeriallNo.,528,315
i, ".2 Claims. (o1. 33+'-—176)
1
2
.The ipresent invention» relates. to "improve
. ' Figure 9 is an isometric view of another form
ements in an, adjustableshipcurve, and .it con
of sleeve.
While I have shown only the preferred forms
of >my invention; it‘ should be understood that
. .SiSt‘s of~the.combinations, tconstructionsand ar
rangements hereinafter described andclaimed.
An object of my invention is to provide an
. various "changes. or..modi?cations may be made
‘adjustable. ship;curve which is an improvement
withinthe-scope of-the appended claims without
departing fromthespirit and scope of~the-in
over my’ copending application on an adjustable
ship curve, Serial No. 520,349, ?led January 29,
., vention.
In carrying out, my inventionl provide a ‘base
, ‘.4944. I In the, copending case I show a .base with
'ctWO parallel bars. and shoes mounted between 10 indicated generally at A and this base has a
.the bars andrslidable ;therealong. A ?exible . ?at underside .l- and a curved upper ‘surface 2,
ruling member is adjustably connected tothe
.see Figure 2.1,Thebase-A isg-supported by rub
., shoes by extensible members that maintainthe
.ber sleeves 3,4 and
see Figure 1., that'sup
desired curve in the member. In the present in
. port the. base a slight. distance above the sup
vention I disclose a base comprising a single 15 porting surface 5.. The rubber vsleeves a. prevent
elongated. member. Sleeves are. slidably- mounted
slippage of. the base :over thegsupporting sur
‘face.
. , extensions
on the member
that hold
and in.
thes?exible.
turn; rotatably
rulingsupport
mem
I show .fah-r?exible ruling member 3 in both
. ber. in the desired shape.
. Figures ,lwand 2,.and onev end of the member
A. further object of my invention is'to provide. 20 is secured to. the-base A "by a screw 1 that is
threaded; through an upright 8 carried by the
‘a device of the type described in which the
‘flexible rulingmember. is held .atthe desired slant
base. .NutsHS and ID are threaded on the screw
.1 and hold thescrew against lateral movement
with respect to‘ the paper on. which the ship
. curve is to be drawn so; that .abetter de?ned ‘ ~ with-respect to thevupright 8. vNut- 9‘ also acts
r ruling edge ‘will be presented, along .which. the 25 as .a-spacing member between thehfiexiblerule
.B and the, upright.
; pencil or inking, pen may be moved whendraw
ing the curve.
‘ “The ?exible ruling member B has alength
substantially coextensive with the length ofthe
A. further object of my invention is to ,pro
vide a devicegsimplein construction “and. durable’
. and ef?cient forthe purpose intended.
.base‘Aand. the, rule is anchored to the base at
30. spaced points,‘ the anchoring meanstbeing ad
Other objectsand ‘advantages willappear in
, the following. speci?cation, and the novel fea
‘-tures of ,the device will be. particularly pointed
out in the appended claims.
My invention isillustrated in the accompany- ‘
ing» drawing forming?a part of; this..application,
in which:
‘
justable forholding the ?exible ruling-member
inlanydesiredrshape. At intervals along the rule
BI provide openings “shown by the dot-dash
linesin Figure- 2A. It-will be noted that the
rule is inclinedwithlrespect to the supporting
surface for the purpose of providing an edge l2
. for guiding a pencil or ,a ruling pen.-
Each open
Figure 1 is a plan view of the device;
ing‘has a countersunk recess I3 in the rear wall
Figure 2 is an enlarged transverse section
l3a of the rule and a countersunk recess M in
40 the front wall Ma of the rule. A screw I5 is
taken along the line 2-—2 of Figure 1;
received in the opening H and the screw has a
Figure 2A is a transverse section through the
?exible ruling member;
Figure 3 is an end view of a modi?ed form of
the invention;
Figure 3A shows another modi?ed form of
the device;
Figure 4 illustrates still another modified form
of the invention;
Figure 5 is a sectional view through a slightly
modi?ed form of the device shown in Figure 4; r
Figure 6 is a plan view of Figure 5;
Figure 7 is a bottom plan view of a modified
form of sleeve.
Figure 8 shows another modi?ed form of the
sleeve; and
head 16 that is received in the countersunk por
tion I4. A nut I1 is mounted on the screw and
is received in the countersunk portion [3. In
this way the screws are rigidly secured to the
rule B. It is possible to pivotally secure the
screws to the rule in the same manner shown
in my copending application.
Still referring to Figure 2, it will be noted
that the screw I5 is received in a threaded sleeve
18; The sleeve has a head l9 and an eyelet 20
is rotatably mounted on the sleeve and bears
against the head I9. An outer threaded mem
ber 2| is screwed upon the sleeve l8 which is
threaded on its exterior surface for this pur
2,404,880
4
3
tongue 33 is of a thicker material and is welded
or otherwise secured to the sleeve. In-Figure '7
the tongue 361 is formed from a struckup portion
from the sleeve 35. In all other respects the de
The tongue extends from a sleeve or a shoe 25 5 vice shown in Figure 7 is the same as that shown
in Figure 5.
that slides along the base A. The shoe 25 is
It is possible to use a base E that is oval in
shaped to contact with the surfaces l and 2 of
cross section and in this event the shoe or sleeve
the base and su?icient friction is developed be
36 is also made oval. The. sleeveor shoe carries
tween the sleeve and the surfaces tohold the
pose. The outer member bears against the op
posite side of the eyelet.
The eyelet has a shank 22 that is passed
through the opening 23 formed in a tongue 24.
shoe in adjusted‘position.
10 a tongue 31 for supporting the ‘other parts of
'
A nut 26, see Figure 4, is threaded upon the
shank 22 ofthe eyelet 20 and the nut bears
against the top of the tongue 24. A second nut
21 is threaded upon the lower portion of the
shank and has a shoulder 28 adapted to enter
the opening 23 in the tongue and to contact with
the under surface of the nut 22%. Theconstruc
tion is such that the eyelet is rotatably secured
to the tongue and the screw [5 can swing about
the vertical axis of the shank 22. At the same
time the screw l5 can be extended or retracted
for moving the ?exible rule B the desired distance
toward oraway from the base A.
the device.
ably receiving the sides of the base D. The edges
of the recesses 40 are the sole contacting sur
faces between the sleeve and the base and this
reduces friction. The end members 39 have
openings 4| which may receive ball-bearings (not
shown), thatcan ride on the sides of the base
D for reducing the friction still further, if that.
I
A number of the shoesv25and screws 15 are
is
provided and these are spaced along thebase A‘,
' as shown in Figure 1.
1.
’
~
'
desired.
I‘ claim:
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I
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I
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"
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1. In a device of the type described, an elon
' gated rigid base having a curved upper portion
The screws [5 pivot on
the shank 22 and they can be extended‘ for giv
ing the ?exible ruling member B the desired
curve, for example, the curve illustrated in Fig-_
ure
.
In Figure 9 I show an isometric view of a modi
?ed form of sleeve or shoe. In this view the
sleeve 38 is larger than the base D and the sleeve
has end members 39 that are curved toward each
other and are provided with recesses 49 for slid
and av?at under portion in crosssection, sleeves
slidable alongv the base and having curved and
30 ?at portions to contact with the upper and lower
In'Fig‘u're 3 I show a, slightly modified form of
base portions; a portion of each sleeve wall being
the invention. In this form the base C'is square
: in cross section and the shoes 25a are also square.
struck up to ‘form a tongue that parallels the
flat under base portion, said tongue having an
opening therein, a'connecto-r swivelled in each
The shoes havetongues 24a and'iall of the other
elements going to make up the structure of the
tongue opening and being supported by ‘the
’ supporting means for the screw l5 are the same,
tongue and ‘sleeve, an extensible member carried
by each connector, and a ?exible ruling member
so like reference numerals will be applied to simi
'
lar parts.
The supporting rubber members 29
' carried by the extensible members and being held
for the base C hold the base so that a lower corner
' is spaced above the supporting surface. '
in the desired shape by the extensible members.
40
The form of_ the invention shown in‘Figure 3A
2. In an adjustable ship curve, an elongated
base, .a shoe slidable therealong, an eye-piece
is the same as that shown in Figure 3 except that
the base-C’. is now triangular shaped in cross
rotatably carried by the shoe, a sleeve rotatably
section and the shoe 25b is also triangular in
shape. In all other respects thev device shown in
tudinal axis swingable in a horizontal p1ane;‘the
Figure 3A is the same as that shown in Figure v3.
_ Coming toFigure 4, I show a base D that is
rectangular in cross section and a shoe 250 that is
also rectangular in shape.‘ The tongue 24b is not
struck up from the shoe portion as is true with "3
the shoes 25, 25a and 251), but instead is placed
in ‘a recess 30 formedin the shoeor sleeve 25c
and is welded or otherwise secured in the recess.
The form of the device shown in Figures _5 and
6 is similar to that shown in Figure 4 with the ‘
exception thatrthe sleeve or shoe 3! is split as
at 32'and is more narrow in thickness. The
carried byv the eye-piece'and having vits longi
' interior of the sleeve being threaded, a screw re
ceived in the sleeve and being longitudinally ad
vanced or retracted as the {sleeve is- rotated in
one direction or the other in the eye-piece, and
a ?exible ruling member secured to one end of
the screw, said »member having a countersunk
opening for receiving the screw, said screw having
a head receivable in the countersunk opening,
said member having an annular shoulder‘on the
opposite side from the countersunk opening and
being'aligned therewith, and a nut mounted on
the screw and bearing against the shoulder.
GASTON L. LATEUR.
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