Improvements in and in Means for Double Seaming or Closing the Ends of Canisters for Preserved Provisions and the like.
Year: 1899

page_text: Date of Application, 19th Jan., 1899
Complete Specification Left, 20th Nov., 1899-Aocepted, 6th Jan., 1900
Improvements in and in Means for Double Seaming or Closing the
Ends of Canisters for Preserved Provisions and the like.
I, WILLIAM WALLER, Engineer, of 28/32, Vauxhall Walk, Lambeth, London,
S.E., do hereby declare the nature of this invention to be as follows:-
This invention relates to certain improvements in and in means for double seam-
ing or closing the ends of canisters or tins for preserved provisions and the like.
The object of this invention is to automatically operate a double set of rollers
of a double seaming machine for the seaming or closing operation.'
In carrying the invention into practise a forked lever arm is employed carry-
ing two rollers mounted upon centres in the forked lever arms; the lever itself
is centred upon a stud and has a rocking motion thereof so as to bring first
one and then the other closing roller into juxtaposition with the flanged edges
of the canister body and which has to be closed, in somewhat similar manner
to that of the now employed lever machines of this class. The-said-roller_has
an extending arm beyond its said centre of motion and this is linked to one
arm of a double armed lever centered upon a bracket of the framing of the
machine. The other arm of this lever is fitted with a roller or runner which
engages with an edge cam or face cam groove of a disc, carried on a shaft driven
off any going part of the driving motion of the machine.
This mounting of the cam is made, advantageously, upon a cross worm shaft
driven by a worm wheel from any going part of the machine.
In practise the cam is to be timed first to bring the pressure of the first closing
roller into operation against the edge of the flanges or edges of the canister
body and of the top or bottom cover, as the case may be. As this first operation
is completed the cam will operate the connecting levers of the forming rollers
lever so as to bring into contact and operation. the second of the forming or
closing rollers to finish the closing operation. According to whether the bodies
of the canisters to be treated are of cylindrical body formation or otherwise,
the cam operating the levers of the forming rollers lever will be provided with
corresponding dwells to follow the contour of the body so as to correspondingly
direct the pressure, as the body turns between the holding chucks.
Datel the 10th Tonnorr 1900

page_text: Improvements in and in Means for Double Seaming or Closing the
Ends of Canisters for Preserved Provisions and the like.
I, WILLIAM WALLER, Engineer, of 28/32, Vauxhall Walk, Lambeth, London,
S.E., 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:-
1
This invention relates to certain improvements in and in means for double seam-
ing or closing the ends of canisters or tins for preserved provisions and the like.
The object of this invention is to automatically operate a double set of rollers
of a double seaming machine for the seaming or closing operation.
In carrying the invention into practice a forked lever arm is employed, carry-
ing two rollers mounted upon centres in the forked lever arms; the lever itself
is centred upon a stud and has a rocking motion thereof so as to bring first
one and then the other closing roller into juxtaposition with the flanged edges
of the canister body and which has to be closed, in somewhat similar manner
to that of the now employed hand lever machines of this class.
The said roller lever has an extending arm beyond its said centre of motion
and this is linked to one arm of a double armed lever centered upon a bracket of
the framing of the machine. The other arm of this lever is fitted with a roller
or runner which engages with an edge cam or face cam groove of a disc, carried
on a shaft driven off any going part of the driving motion of the machine.
This mounting of the cam is made, advantageously, upon a cross worm shaft
driven by a worm wheel from any going part of the machine.
In practice the cam is to be timed first to bring the pressure of the first closing
roller into operation against the edge of the flanges or edges of the canister body
and of the top or bottom cover, as the case may be. As this first operation is
completed the cam will operate the connecting levers of the forming rollers
lever so as to bring into contact and operation, the second of the forming or
closing rollers to finish the closing operation. According to whether the bodies
of the canisters to be treated are of cylindrical body formation or otherwise, the
cam operating the levers of the forming rollers lever will be provided with
corresponding dwells to follow the contour of the body so as to correspondingly
direct the pressure as the body turns between the holding chucks. In order that
the said invention may be readily ascertained and carried into practical effect
there is annexed hereto a sheet of drawings illustrative of its application and
the same will be referred to by figures and letters in the following description
thereof, like letters indicating similar parts.
Fig. 1 is a general view of machine and Figs.
and 2 are diagrams.
A, is a suitable framing upon which the working parts of the machine is
carried. B, an adjustable sliding block and bracket carrying the rest or plat-
form B¹, on which the canister undergoing the closing process will be rested,
C is the upper holder of the canister under operation, said holder C, being rotated
through the bevil gear D, off the driving shaft D'.
The rest B', and the holder C, are in effect chucks, adjustable as to their
distance apart, for receiving, holding and rotating the canisters the ends of
which have to be seamed or closed. E, is a fast and loose pulley on the driving
shaft D F, indicates a striking fork for the driving band of the pulley E, D²,
indicates a worm on driving shaft D₁, gearing with a wheel on cross shaft d
supported by bracket A¹, said cross shaft d, carrying the cam .
Upon a centre pin a of the adjustable bracket A2, is carried, a forked lever
arm a carrying two edged rollers mounted upon centres in the ends of the forked

page_text: lever arms; the lever a¹, having a rocking motion thereof on stud a so as to
bring first one and then the other closing roller into juxtaposition with the
flanged edges of the canister body which has to be closed. The said roller
carrier lever is at its other end linked by the rod b to one arm of a double armed
lever c centered upon a bracket A3, of the framing of the machine. The other
arm of this lever is fitted with a roller or runner which engages with an edge
cam, (or it may be a face cam groove of a disc), carried on shaft d.
In practice the cam d', is to be timed first to bring the pressure of the first
closing roller, see Figs. 2 and 2, against the edge of the flanges-or edges of the
canister body, and of the top or bottom cover as the case may be.
As this
first operation is completed the cam d, will, in continuing its motion, act on
the roller c of the double arm levere thus operating the connecting levers c, b,
so as to bring into contact and operation, the second of the forming or closing
rollers of the forked lever a¹ to finish the closing operation. The canister so
closed and seamed will then be removed from the chucks B, C, and another
canister be placed therein ready for the next following operation in like manner.
According to whether the bodies of the canisters to be treated are of cylin-
drical body formation or otherwise the cam, operating the levers e, b, of the
forming rollers lever a¹, will be provided with corresponding "dwells" to follow
the contour of the body shape, so as to correspondingly direct and apply the
pressure, automatically as the body turns with the holding chucks C, B
Ilaving now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:-
In machines for double seaming or closing the ends of canisters the com-
bination with the holding chucks, B, C of a centre pin and bracket a, A2,
carrying the closing rollers lever a¹, linked as at b, to the double armed lever c.
actuated by cam , driving off the motion shaft D1, D2, the whole constructed
combined and operating as and for the purpose herein set forth, and substantially
as shown by and described in reference to the accompanying drawing.
DOLL Novemb1800