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Патент USA US3023553

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March 6, 1962
Filed April 9, 1958
Jéz'e »% Kai/22¢ and“
hired erases .Patent
Leslie H. Laine and Floyd T. Hagedorn, Perrysburg,
Ghio, assignors to Libbey-Owens-Ford Glass Company,
Toledo, Ohio, a corporation of Ohio
Filed Apr. 9, 1%58, Ser. No. 727,385
4 Claims. (Cl. 49-67)
This invention relates generally to the bending or shap
ing of glass sheets or plates to a desired con?guration,
and more particularly to an improved bending mold for
bending glass sheets.
Before the sections of the multiple section bending
Patented Mar. 6, 1962
relatively long spaced shaping rails 16 bent to a relatively
long radius. Shaping rails 16 are held in spaced relation
ship by cross rods 17 secured to the inwardly facing sur
faces of the inverted T sections which form the shaping
The center section 15 is movably connected to oppo
sitely disposed aligned rectangular end sections 18 each
of which comprises shaping rails 19 which are also formed
by inverted T sections. End section shaping rails 19 are
bent sharply upward from the point of juncture between
the center section 15 and the end sections 18 as viewed
in FIG. 1. The top edge of the shaping rails 16 and 19
join in their closed position to form a continuous substan
tially uninterrupted shaping surface “A.” The end section
molds are assembled, the shaping rails are ground to the 15 shaping rails 19 are reinforced by cross rods 20 which
exact contour to which the glass sheet is to be bent and
are mounted in the same manner as center section cross
in the areas of the abutting ends of the sections adjacent
rods 17.
the hinges the rails are ground and matched so that there
To support the mold end sections, pairs of depending
is a substantially continuous, smooth glass shaping sur
arms 21 are welded or fastened by other means to the
face. After the bending molds are placed in use for 20 outwardly facing surface of each end section shaping rail
bending glass sheets, it is often-times necessary to replace
19 on opposite sides thereof about midway between the
one or more of the sections thereof because the upper
ends. Each arm 21 carries a pin 22 at its lower extremity
surface of the shaping rails which contact the glass sheet
which pivotally engages the lower end of a link 23, which,
become worn with continued use. Thus it is desirable
in turn, is pivoted at its upper end about a pin 24 ex
that the shaping surfaces of the bending mold be readily 25 tending through a corner post 13 near the upper extremity
adjustable to facilitate both the initial assembly and the
thereof. Hinges 25 join the center section 15 with the
replacement of worn sections.
end sections 18.
It is therefore, the object of the present invention to
According to the present invention, the hinges 25 are
provide an improved bending mold which is easily as
mounted on the mold by means of new and novel struc
sembled and which has readily adjustable shaping surfaces. 30 ture which facilitates easy assembly and disassembly of
Another object of the invention is to provide a multiple
the mold and which permits individual mold sections to
section bending mold in which individual sections may
be easily replaced. As shown in B of FIGS. 3 and 4 the
be easily replaced.
center rails 16 are notched at the bottom corners on both
A further object of the invention is to provide a multiple
ends, leaving the top or shaping surface intact. To pro
section hinge type bending mold in which sections of 35 vide support for the hinge 25 a rail plate 26 is tack welded
the shaping rail may be installed or replaced without
grinding to blend at the hinge joints.
Other objects and advantages of the invention will be
as at 27 to overlie a portion of the notch B on the inward
ly facing surface of the shaping rail 16. In order that
the hinge 25 may retain the shaping rails in proper align~
come more apparent during the course of the following
ment the rail plate 26 is substantially parallel to the shap
description, when taken in connection with the accom 40 ing rail 16. The outermost edge of the rail plate 26 lies
panying drawings.
In the drawings wherein like numerals are employed
to designate like parts throughout the same:
FIG. 1 is a front elevation of the improved mold and
FIG. 2 is a plan view of the mold and frame of
FIG. 1;
inwardly of the outermost end of both the notched out
portion B and the shaping rail 16 in order to prevent the
mold from binding during closure. An integrally formed
leg portion 28 extends downwardly from the rail plate 26
45 and an aperture 29 extends through the rail plate 26 at a
point directly above the leg 28.
As will be later described, to prevent lateral movement
FIG. 3 is an enlarged elevation with parts in section
of the assembled hinge, a generally L shaped lug 30 is
of the improved hinge structure as viewed from the center
secured to the outwardly facing surface of the rail plate 26
50 parallel to the shaping surface of the center section shap
of the mold;
P16. 4 is a section of the hinge construction taken on
ing rail 16. The lug 30 terminates in the longitudinal
the line 4-4 of FIG. 3; and
direction a short distance from the edge ‘of the rail plate
FIG. 5 is another section of the hinge construction taken
26 which lies adjacent the outermost end of the rail 16,
on the line 5-5 of FIG. 3.
while the opening between the L shaped lug 30 and the
Referring now to the drawings, and particularly to 55 rail plate 26 provides a vertical slot 31 adjacent and ex
FIGS. 1 and 2, the numeral 10 refers to a mold supporting
tending parallel to the outwardly facing surface of the rail
frame which is comprised of a pair of longitudinally ex
plate 26 directly beneath the center section shaping rail.
tending base members 11 held in substantially parallel,
The hinge 25 includes a clevis portion 32 comprising a
spaced relationship by a pair of spaced transverse skids
vertically extending rib 33 disposed at right angles to the
or rails 12. The rails 12 also serve to guide the rack as
adjacent end rail section and parallel spaced bifurcations
it moves along a conveyor (not shown) through a bending
34 and 35 secured thereto which extend toward the trans
furnace. Four vertically extending hanger posts 13 are
verse center line of the mold 14 at right angles to the rib
secured to the base members 11 near the longitudinal
33. As seen in FIGS. 3 and 4, the bifurcations 34 and 35
extremities thereof.
contain aligned apertures 36 at the lower innermost cor
A mold generally indicated by the numeral 14 is carried
by the hanger posts 13 and includes a center section 15
The lower innermost corners of the end section shaping
which is comprised of a pair of substantially parallel
rails 19 are notched at C to receive the rib section 33 of
the clevis portion 32 which is tack welded to the end rails
at 37 in abutting relation with the notched portion C.
The bifurcations 34 and 35 are each positioned within the
notched portion C and are spaced equidistant from the
plane of each end shaping rail 19.
The hinge 25 also includes an eye portion 38 that is
provided with an aperture 39 which when aligned with the
apertures 36 in the clevis portion 32 is pivotally joined to
the clevis portion 32 ‘by a hinge pin 40. Lateral movement
rotate relative to said second member thereby changing
the relative position of the shaping surface of said inter
mediate section and said end section.
2. Apparatus for selectively connecting and disconnect
ing adjacent sections of a glass bending mold and align
ing the glass engaging shaping surfaces formed on said
sections, comprising a hinge having two hinge members
pivotally joined together with one of said members se~
cured to the end of one of said sections, a plate secured
of the hinge pin 40 in the aligned apertures is prevented 10 to the other of said hinge members and extending toward
the end of anladjacent section of said bending mold, a
by a washer 41 mounted opposite the head end of the
second plate secured to the end of said adjacent section
hinge pin 40 and secured by a cotter key 42. To limit the
and overlapping said ?rst member, means pivotally con
closing motion of the mold 14 a stop member in the form
necting said ?rst and second members for movement with
of a projection 43 is provided near the top of the eye por
respect to each other about a ?xed axis thereby to shift
tion 38 and _is adapted to contact the rib $3 of the clevis
the glass engaging surfaces formed on said sections rela
portion 32.
tive to each other, and locating means formed on said
Attached to the eye portion 38 is a hinge plate 44 tack
first plate and said second plate, and adjustable clamping
welded thereto at several points indicated by the numeral
means acting between said locating means on said ?rst
45. The hinge plate 44 carries a pivot pin 46 substantially
plate and said second plate to prevent relative rotation
in the center thereof adapted to extend through the aper
between said ?rst and second plate.
ture 29 in the rail plate 26 to permit the hinge plate to
3. In apparatus for bending glass sheets, a mold com~
pivot thereabout. The hinge plate 44 extends upward and
prising a plurality of mold sections including an end
is received in the vertical slot 31 where it is con?ned
section and an intermediate section having shaping sur
in ?nal assembly against lateral movement to prevent dis
faces formed thereon, said mold sections adapted to move
engagement of the pivot pin 46 from the aperture v29.
relative to each other between an open, sheet receiving
Locator pins 47 and 48 are carried by the hinge plate 44
position and a closed position wherein said shaping sur
below the pivot pin 46 and as seen in FIGS. 3 and 5
face forms a continuous surface de?ning the con?gura
these locator pins 47 and 48 project inwardly from hinge
tion to which the glass sheet is to be bent, a hinge having
plate 44 parallel to the pivot pin 46.
Due to the fact that there are several variable factors 30 a clevis portion secured to said end section and an eye
involved, including manufacturing tolerances and wear,
which might result in misalignment of the shaping sur
portion, a hinge pin pivotally connecting said eye por
faces of the shaping rails 16 and 19 during installation or
replacement as shown by dashed lines at D and E in
FIG. 3, it has been found desirable in some instances to
tion and said clevis portion, adjustment means connect
.ing said intermediate section to said eye portion whereby
said end sections swing about said hinge pin as an axis
between said open and closed positions, said adjustment
provide means for angular adjustment of the rail plate
means comprising a ?rst member secured to said eye por
26 relative to the hinge plate 44. Such adjustment is ac
complished by means of triangular wedges 49 and 50
tion and projecting toward said intermediate section,
spaced apart pins secured at one end to said first member
placed between the leg portion 28 and the locator pins
and projecting laterally outwardly therefrom, a second
47 and 48. By properly locating the wedges it is possible 40 member rigidly secured to said intermediate section, a
to align the shaping surfaces of the center shaping rail 16
pivot pin joining said ?rst and second members and ex
and the end shaping rail 19. For example, if the rail 16
tending parallel to said hinge pin whereby said ?rst and
is in the “D” position, wedge 49 is withdrawn part way
second members rotate about said pivot pin as an axis
from between the leg 28 and the locator pin 47 allowing
to alter the relative positions of said shaping surfaces on
the rail 16 and rail plate 26 to pivot around the pivot
said mold sections, a leg portion integral with said second
pin 46 until the top surface of rail 16 is aligned with the
member and disposed between said pins on said ?rst
top surface of rail 19. Wedge 50 is advanced farther into
member, and wedges acting between said pins and the
the widened space between the leg 28 and the locator pin
opposite sides of said leg portion thereby to clamp said
48 to hold the alignment, and both Wedges are rigidly se
second member in a preselected position relative to the
cured to the hinge plate 44 by any suitable means such as 50 ?rst member to prevent relative rotation between said
tack welds '51. If the rail 16 is in the “E” position of
?rst and second members.
FIG. 3 the wedge 50 is withdrawn and wedge 49 is ad
4. ‘In apparatus for bending glass sheets, a mold com
vanced. 'The adjustment is made at all ‘four corners, if
prising a plurality of sections disposed end to end and
having shaping surfaces formed thereon, said mold sec
iIt is to be understood that the form of the invention
disclosed herein is to be taken as the preferred embodi
ment thereof, and that various changes in the shape, size
and arrangement of parts may be resorted to without de
parting from the spirit of the invention or the scope of the
tions adapted to move relative to each other between an
following claims.
open, sheet receiving position and a closed position where
in said shaping surfaces form a continuous surface de
?ning the configuration to which the glass sheet is to be
bent, a hinge comprising a clevis portion secured to one
of said mold sections and an eye portion, a hinge pin
We claim:
pivotally connecting said clevis portion and said eye por
1. In apparatus for bending glass sheets, a mold com
tion for rotation relative to each other about said pin as
prising a plurality of sections including an end section
an axis, adjusting means connecting said eye portion with
and an intermediate section having shaping surfaces
the other of said mold sections, said adjusting means com
formed thereon, said mold sections adapted to move rela 65 prising a hinge plate disposed in a plane parallel to said
tive to each other to a position wherein said shaping sur
mold sections and secured to said eye portion, pins formed
faces form a continuous surface de?ning the con?guration
on said hinge plate to project laterally outwardly there
to which the glass sheet is to be bent, hinge means mount
from, a rail plate rigid with said other mold section and
having a leg portion formed thereon and extending be
ing said end section for rotative movement to said posi
tion, and adjusting means connecting said hinge means 70 tween said pins, means pivotally connecting said hinge
plate and said rail plate, and adjustable means acting be
with said intermediate section, said adjusting means com
tween said pins on said hinge plate and said leg portion
prising a ?rst member rigidly secured to said intermediate
and operable to swing said rail plate relative to said hinge
section and a second member rigidly secured to said hinge
plate about said pivot means thereby to alter the rela
means, and means pivotally connecting said ?rst member
and .said second member to permit said ?rst member to 75 tive positions of said shaping surfaces to insure the con
tinuity of the con?guration of the ‘mold in said closed
position, and to selectively secure said rail plate in a
?xed position relative to said hinge plate.
References Cited in the ?le of this patent
2,73 6,140
Hoyt ________________ __ Dec. 8, 1903
Hem _______________ __ Feb. 20, 1923
Hurt ________________ __ Oct.
Mafera ______________ __ July
Mafera ______________ __ Feb.
Smith _______________ __ Aug.
Black _______________ __ Feb.
Jendrisak ____________ __ Mar.
Great Britain ________ __ Oct. 16, 1957
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