Improvements in Machines for Packing Tea or other Substances.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Machines for Packing Tea or other Substances.
I, SAMUEL CLELAND DAVIDSON of Sirocco Engineering Works, Belfast, Ireland,
Merchant, do hereby declare the nature of this invention to be as follows:-
The invention has reference to machines for packing tea or other substances
of the type described in the Specifications of two previous Patents dated respec-
tively 6th February 1894 No. 2008 (granted to the present applicant and another)
and 7th August 1895 No. 14924 (granted to the present applicant and which
Specifications are hereinafter referred to as the previous Specifications) in which
machines the chest to be filled is clamped or otherwise made fast to the top surface
of a table which has a rapid vibratory oscillating motion imparted to it. In the
machines described in the previous Specifications the bottom of the chest receives
a shorter oscillatory movement than the top and by some users this is considered
a disadvantage.
The present invention consists first in so mounting the packing table on arms
or on a central pivot, that while its to and fro movements are through the arc
of a circle, and consequently oscillatory, its surface is always kept horizontal
whereby the motion which the table imparts to the chest clamped upon it is the
same at the bottom of the chest as at the top. According to one manner of
carrying out this part of the invention the table is mounted on vertical oscillating
links jointed to the bed plate; the connecting rod which receives motion from the
crank or excentric shaft is attached to one of these links so that as the crank shaft
retates the table receives an oscillatory movement on the vertically oscillating
and supporting links while at same time the surface of the table remains horizontal
and consequently the bottom of the chest carried by the table receives the same
amount of motion as the top.
According to another way of carrying out this part of the invention the table
is mounted upon horizontal oscillating cranks to one of which the connecting rod
is attached so that the throw of the excentric causes through the intermediation of
the connecting rod and the crank to which it is connected an oscillatory move-
ment of the table upon its horizontally oscillating and supporting cranks.
According to a third way the connecting rod is attached to the table, preferably
at one end thereof. The table is mounted on a central pivot which is free to turn
in a footstep bearing so that the throw of the excentric causes through the
connecting rod a horizontal oscillatory movement of the table on the said pivot.
The invention further consists in so transmitting the oscillatory or to and fro
motion by means of indirect lever arms from the excentric portion of the driving
shaft to the table as to introduce more or less spring between the driving shaft
and the table and thereby obviate or minimize the hard, concussive or hammer
ike action, which at the end of each to and fro movement, the table would other-
vise have upon the driving cam or crank owing to the extreme rapidity of its
ibratory oscillating motion. In order to carry out this part of the invention the
motion from the driving cam to the table is transmitted through an intermediate
Pain Q17

page_text: lever arm in which the end acted on by the driving excentric or crank has its to
and fro motion imparted to it in either a transverse or an oppositely acting direc-
tion to that of the movements of the table, and I preferably have the end of the
lever arm which is connected with the driving excentric, sufficiently long from
its pivot or its rigid connection to the table to have more or less spring in it at
the end of each to and fro movement of the cam and table, this amount of spring
greatly minimises the hard concussive and hammer like action of the table, when
rapidly vibrating and loaded with a heavy chest upon it; the driving excentric
of cranks are consequently rendered much more durable.
Dated this 28th day of October 1896.
J. C. MEWBURN & ELLIS,
55 and 56 Chancery Lane, London, Chartered Patent Agents.
Improveme
I, SAMUEL CLELAND DAVIDSON, of Sirocco Engineering Works, Belfast, Ireland, 1
Merchant, do hereby declare the nature of the said invention and in what manner the
same is to be nerformed to be particularly described and ascertained in and by the
following statement:―
The invention has reference to machines for packing tea or other substances
of the type described in the Specifications of two previous Patents numbered respec-
tively 6th February 1894, No. 2608 (granted to the present applicant and another)
and 7th August 1895 No. 14924 (granted to the present applicant), and which
Specifications are hereinafter referred to as the previous Specifications, in which
machines the chest to be filled is clamped or otherwise made fast to the top surface
of a table which has a rapid vibratory oscillating motion imparted to it. In the
machines described in the previous Specifications, the bottom of the chest receives
a shorter oscillatory movement than the top, and by some users this is considered
a disadvantage.
The present invention consists first in so mounting the packing table on arms
or on a central pivot, that while its to and fro movements are through the arc
of a circle, and consequently oscillatory, its surface is always kept horizontal
whereby the motion which the table imparts to the chest clamped upon it is the
According to one manner of
same at the bottom of the chest as at the top.
carrying out this part of the invention the tablo is mounted on vertical oscillating
links jointed to the bed plate; the connecting rod which receives motion from the
ciank or excentric shaft is attached to one of these links so that as the crank shaft
rotates the table receives an oscillatory movement on the vertically oscillating
and supporting links while at same time the surface of the table remains horizontal
and consequently the bottom of the chest carried by the table receives the same
amount of motion as the top.
According to another way of carrying out this part of the invention the table
is mounted upon horizontal oscillating cranks to one of which the connecting rod
is attached so that the throw of the excentric causes through the intermediation of
the connecting rod and the crank to which it is connected an oscillatory move-
ment of the table upon its horizontally oscillating and supporting cranks.
According to a third way the connecting rod is attached to the table, preferably
at one end thereof. The table is mounted on a central pivot which is free to turn
in a footstep bearing so that the throw of the excentric causes through the
connecting rod a horizontal oscillatory movement of the table on the said pivot.

page_text: The invention further consists in so transmitting the oscillatory or to and fro
notion by means of indirect lever arms from the excentric portion of the driving
haft to the table as to introduce more or less spring between the driving shaft
and the table, and thereby obviate or minimize the hard, concussive or hammer-
ike action which at the end of each to and fro movement, the table would other-
wise have upon the driving cam or crank owing to the extreme rapidity of its
vibratory oscillating motion. In order to carry out this part of the invention the
motion from the driving cam to the table is transmitted through an intermediate
lever arm in which the end acted on by the driving excentric or crank has its to
and fro motion imparted to it in either a transverse or an oppositely acting direc-
tion to that of the movements of the table, and I preferably have the end of the
lever arm which is connected with the driving excentric, sufficiently long from
its pivot or its rigid connection to the table to have more or less spring in it at
the end of each to and fro movement of the cam and table, this amount of spring
greatly minimises the hard concussive and hammer-like action of the table, when
rapidly vibrating and loaded with a heavy chest upon it; the driving excentric
or cranks are consequently rendered much more durable.
Reference to the accompanying drawings will more fully explain the nature of
my invention and in what manner the same is to be carried into effect.
Figures 1, 2, 3 and 4 are respectively a plan, a side elevation and elevations of
the two ends of my improved packing machine, constructed according to the
modification in which the packing table is mounted upon vertical oscillating arms.
Figures 5, 6 and 7 are respectively a plan, a side elevation. and an end elevation of
my improved machine constructed according to the modification in which the
packing table is mounted upon horizontally oscillating cranks.
Figures 8, 9 and 10 are respectively a plan, a side elevation and an end elevation
of my improved packing machine, constructed according to the modification in
which the packing table is given a horizontal oscillating movement on a central
pivot.
In all the modifications shown, A represents the bed plate, B the oscillating
packing table on which the chest or receptacle to be packed is secured by the
sliding clamps CC which are operated by the hand wheel 1) and the right and left
hand screw E. F is the crank or excentric shaft from which the table B receives
its motion and which rotates in the bearings G G and is driven by the pulley H,
and so far the construction of the bedplate and table is practically the same as
described in the previous Specifications. K is the excentric portion of the shaft F
and L the excentric rod which during the rotation of the shaft F necessarily
receives the motion of the excentric K and imparts the same to the connecting
rod L¹.
In the modification shown in Figures 1, 2, 3 and 4, the table B is supported
upon the vertical oscillating links M, M, M². L is the excentric connecting rod
and L' the lever arm which is attached to the links M by the block N so that, as
will be readily understood, the rotation of the shaft F causes through the excen-
tric K, connecting rod L and lever arm L' an oscillatory movement of the table B
on the vertically oscillating and supporting links M, M, M while at the same
time the surface of the table remains horizontal.
In the modification shown in Figures 5, 6 and 7 the table B is mounted upon the
horizontal oscillating cranks P, P1, P2. The lever arm L' is attached to the crank P
so that the throw of the excentric K causes, through the connecting rod L and
lever arm L and crank P, an oscillatory movement of the table B upon its
horizontally oscillating and supporting cranks 1, P1, P2.
In the modification shown in Figures 8, 9 and 10 the lever arm L¹ is attached
to the table B, preferably at one end of same. The table B is mounted on a central
pivot pin R which is free to turn in its footstep bearing S, so that the throw of
5 the excentric K causes, through the connecting rod L and lever arm La hori-
zontal oscillatory movement of the table B on the pivot R.
It will readily be understood that in all the modifications (and particularly in

page_text: those illustrated in Figures 5 to 7 and 8 to 10) the arrangement and manner of
connecting the lever arm provides a sufficient amount of spring or "give" to
minimize the concussive or hammer-like action of the table at the end of its to
and fro movements upon the driving cam or crank.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:-
1. A machine for packing tea or other substances in chests, boxes or receptacles,
the said machine being so constructed that a table to which the receptacle is
clamped or otherwise firmly secured receives a rapid oscillatory motion through
the arc of a circle (the plane of which circle is either vertical or horizontal) while
its surface is maintained in a horizontal position at all points of its oscillatory
movement, whereby the oscillatory motion imparted by the table to the receptacle
secured thereon is the same at the bottom of the receptacle as at the top, sub-
stantially as hereinbefore described.
2. In machines of the type hereinbefore referred to for packing tea or other
substances, an arrangement for imparting rapid oscillating motion to the
receptacle-carrying table, the said arrangement comprising a transversely
oscillating lever arm, one end of which is connected by a pivotted connecting rod
to and operated by a revolving cam or crank on the driving shaft, and its opposite
end connected to the table, either directly or indirectly, so that the rapid oscillatory
movement from the driving cam or crank is transversely communicated to the
lever arm and through it to the table, whereby the said lever arm becomes capable
of sufficient spring to reduce the concussive or hammer-like action of the table
at the end of its to and fro movements, upon the driving cam and pivots in the
connecting rod, all substantially as and for the purposes hereinbefore described
and represented in the accompanying drawings.
3. The special construction and arrangement of machine represented in Figures 1
to 4 and hereinbefore described, whereby the surface of the receptacle-carrying
table is maintained in a horizontal position during its rapid oscillatory motion.
4. The special construction and arrangement of machine represented in Figures 5
to 7 and herein before described whereby the surface of the receptacle-carrying
table is maintained in a horizontal position during its rapid oscillatory motion.
5. The special construction and arrangement of machine represented in Figures 8
to 10 and herein before described, whereby the surface of the receptacle-carrying
table is maintained in a horizontal position during its rapid oscillatory motion.
Dated this 24th day of July 1897
J. C. MEWBURN & ELLIS,
55 and 56 Chancery Lane, London, Chartered Patent Agents.