Improvements in Machines for the Manufacture of Caps or Covers for Bottles, Jars and the like.
Year: 1898

page_text: Date of Application, 14th Sept., 1898-Accepted, 22nd Oct., 1898
COMPLETE SPECIFICATION.
Improvements in Machines for the Manufacture of Caps or Covers for
Bottles, Jars and the like.
We, EDMUND HOFFMAN, of 69, East Avenue, Bridgeton, Machinist, ROBERT
PORTER FRIST, of York and Moore Streets, Bridgeton, Patternmaker, and CHARLES
EWING ELMER WHITELEY, of 65, Broad Street, Bridgeton, Secretary of The
Whiteley Company, all of Bridgeton, Cumberland County, New Jersey, United
States of America, WILLIAM GUSTAVUS WHITELEY, of 800, West Street, Wilming-
ton, New Castle County, Delaware, United States of America, Manager of The
Whiteley Company, and HENRY WHITELEY, of 3803, Spruce Street, City and
County of Philadelphia, Pennsylvania, United States of America, Iron Manu-
facturer, do hereby declare the nature of this invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement:-
Our invention relates to the construction of mechanism for forming caps such
as are used for closing fruit jars or bottles, and are provided with inwardly
extending lugs pressed out of the metal to engage with locking lugs or grooves
on the receptacle with which they are used. Preferably we employ mechanism
which in addition to forming the locking lugs also corrugates the sides of the
cap in order to provide a good hold for the fingers.
The leading features of our invention consists in the employment of a mandrel
or mandrel roll having retractable die sections adapted for the formation of the
inwardly extending lugs in combination with a co-acting die carrier provided
with dies adapted to operate in connection with the retractable dies of the
mandrel.
The nature of our improvements, both in the general construction of the cap
forming mechanism, and in detail, will be best understood as described in con-
nection with the drawings in which they are illustrated, and in which,
Figure 1 is a side elevation partly in section of a machine provided with our
improvements.
Figure 2 is a cross-sectional end view taken as on the line 1-1 of Fig. 1.
Figure 3 is a side elevation on a larger scale and partly in section of the cap
forming mechanism.
Figure 4 is a cross-sectional view taken as on the line 2-2 of Fig. 3.
Figure 5 is a perspective view showing the mandrel roll and retractable dies.
Figure 6 is a perspective view of a cap finished on the mechanism illustrated
in the drawing, and
Figure 7 is a cross-sectional view of this cap.
A indicates the frame of the machine which, as shown, is formed with bear-
ings A1 and A2 for the main shaft and with a further tubular bearing A serving
as a bearing for the shaft H, to be hereafter described. B is a tubular shaft
working in the bearings A¹ and A and driven, in the plan shown, by the belt
wheel B1. As shown the tubular shaft B has at its operative end a head B³
slotted as indicated at B³, and terminating in a corrugating mandrel roll C

page_text: formed with recesses C₁ C¹; and it will be understood that any desired number
of these recesses are to be provided in accordance with the number of inwardly
extending, lugs which are to be formed upon the cap. D D are pivot pins
secured in the head B and extending across the slot B³, and pivoted upon these
pins are the die sections D¹ D', preferably formed with rearwardly extending
levers D2, as shown. The dies D extend into the recesses C¹ and as shown are
formed with terminal outwardly extending lips D³, and recesses D* having the
conformation or approximately so, which it is desired to give to the lug formed
on the cap, E is a longitudinally movable roller working in the tubular shaft B
and, as shown, provided with a sleeve E at its outer end with which engages
a lever F pivotted on an arm a of the frame A. At the other or operative end
of the rod E we have shown it as formed with a contracted section E2 and a
head E3, the outer edge E of which is rounded while the extreme end E5 of
the rod E moves in a guiding bearing formed in the end of the roller C. The
conformation of the under side of the dies D¹ and of the head E3 is such that
when the rod E is thrust forward or toward the left, as shown in the drawings,
the head E presses the dies D¹ outward to their normal operative position while
when the rod E has its head retracted or moved toward the right the dies D¹ are
permitted to move in the recesses to such a degree as to permit the removal
of the formed cap. We preferably form the rod E with the contracted portion Es
and form the dies D with a rearwardly extending lever arm D2 so that a back-
ward motion of the rod E will not only release the dies permitting them to be
retracted from operative position but by acting on the lever arms D2 will also
effect the retraction of the dies to a point where their engagement with the
formed cap is released.
G is a gear wheel secured on the shaft B and engaging with a gear wheel G¹
secured on the end of a shaft H supported in the sleeve bearing A³ and having
secured to its outer end a gear wheel J. The shaft H also serves as a support
and bearing for a bearing piece I which in turn forms a bearing for a shaft K
and a support for an intermediate gearing J₁ engaged with the gear wheel J
and with gear wheel J2 on the shaft K. The bearing piece I is formed or pro-
vided with a stop finger I which, in the operative position of the machine,
rests against a stop finger A* on the end of the sleeve A³. I indicates a handle
or lever secured to the bearing piece I and I³ a weight secured on this lever and
acting to normally hold the parts in the position shown in Figs. 1 and 2. L, as
shown, is at once a corrugating roll adapted to work in connection with the corru-
gations of the roll C to corrugate a cap and also a die holder carrying male
dies L' adapted to work in connection with the countersunk lug forming recess D'
of the retractable dies D¹. As shown, and as preferably constructed the dies L'
are formed integral with the corrugating roll L.
M, in Figs. 6 and 7, indicates the finished cap, which, as shown, has near its
head an annular beading M¹ below which the body of the cap is corrugated, as
indicated at Me, the corrugations being however interrupted by uncorrugated
faces M3 in which are formed the inwardly projecting locking lugs M; M³
indicates a washer or layer of cork or other elastic material lying on the inside and
against the head of the cap and extending into the beading M as shown. We
may say here that the cap as shown possesses in itself features of novelty and forms
the subject matter of another application for Letters Patent filed by us con-
currently with the present one, viz.: No. 19554 of 1898.
The operation of the machine as illustrated is simple and easily understood.
Caps uncorrugated and not provided with lugs are the blanks upon which the
machine operates and when it is desired to operate upon such a blank the work-
man by lifting on the lever I³ turns the bearing piece I on the shaft H as a centre
and thus moves the roll L away from the roll C. The cap blank is then placed
over the mandrel roll C and the bearing piece I restored to normal operative
position whereupon the rotation of the rolls C and L, the two rolls moving
synchronously by reason of the gearing already explained will effect the corru-

page_text: gation of the cap and the formation of the locking lugs M whereupon the bear-
ing piece I is again swung away by the action of the lever I2 and the rod E
retracted by means of the lever F, its operative head releasing the retractable
dies and preferably moving them inward as described so that the cap, finished
as shown in Figs. 6 and 7, can be withdrawn from the mandrel roll.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is;-
1. In a machine for forming metal caps a mandrel roll having retractable die
sections D¹ in combination with a synchronously rotating die carrier having dies
adapted to coact with dies D¹.
2. In a machine for forming metal caps, a corrugated mandrel roll C having
retractable die sections 1), in combination with a corrugated roll L having dies L'
adapted to coact with dies D¹.
3. In a machine for forming metal caps, a hollow shaft B, having at one end
a slotted section B2 and a mandrel roll formed with recesses in combination
with pivoted dies 1' pivoted in the slotted section 132 and lying in the recesses C¹,
a longitudinally movable rod E working in the hollow shaft 13 and arranged when
in one position to hold the dies D' in operative position and in another position
to permit their retraction, and a coacting synchronously revolving die carrier
having dies as L' arranged to coact with dies D¹.
4. In a machine for forming metal caps, a hollow shaft B, having at one end
a slotted section 132 and a mandrel roll C formed with recesses C¹, in combination
with pivoted dies 1 having lever extensions D2 pivoted in the slotted section B³
and lying in the recesses C¹, a longitudinally movable rod E having a neck sec-
tion E and head E working in the hollow shaft B and arranged "when in one
position to hold the dies D in operative position and in another position to permit
their retraction, and a coacting synchronously revolving die carrier having dies L'
arranged to coact with dies D¹.
TL 141 1
L
1
1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicants.