Improvements in Machines for Filling and Sewing Sacks.
Year: 1892

page_text: Date of Application, 14th July, 1892
Complete Specification Left, 14th Apr., 1893-Accepted, 14th July, 1893
PROVISIONAL SPECIFICATION.
[Communicated from abroad by JOHN T. BIBB, of Tacoma, in the County of
Pierce, and ARTHUR T. TIMEWELL, of Spokane Falls, in the County of
Spokane, both in the State of Washington, United States of America.]
Improvements in Machines for Filling and Sewing Sacks.
I, HENRY HARRIS LAKE, of the Firm of Haseltine Lake & Co., Patent Agents,
45 Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of this invention to be as follows:-
This invention relates to means for sacking grain, ore, and other materials and
for sewing the sacks after they are filled.
The table consists of two sections one the second being connected at its outer
end only to the frame by hinges aud is normally somewhat lower than the first
section.
.
The sack attached to the sack-holder extends down through a suitable opening in
the table, so as to rest on a carrier belt or floor.
The sack-holder consists of four bars hinged together at their ends. Two of the
bars on their upper faces are provided with a rack each of said bars being serrated
on its inner edge. Two of the bars are provided with hooks which are near the
hinges. The object of the serrations hooks and racks will be hereinafter referred
to. The ends of each bar at the joints extend beyond the hinging points and are
bevelled in order that the sack-holder may be opened. Each bar is provided with.
a recess at its bevelled end, in which is pivoted a catch having a hook at its
forward end and bent behind the pivot. When the sack-holder is closed, the bent.
When the sack
end of each catch will project from the bevelled end of its bar.
holder is open, the bent ends of the catches will cross each other and engage the
spring-hooks attached to the under side of the bars. The hooked end of each of
the catches will thus be held close to the edge of the bar in which it is pivoted
and against the force of a U-shaped spring which bears against the bent ends of
the catches.
In order to release the catches from the spring-hooks we employ a pin which.
passes through a plate secured to one of the side bars of the sack-holder and.
engages the lugs on the spring hooks. The pin is provided with a button at its
upper end, and a spring is interposed between the button and the plate. The
holder is forced into and maintained in an open position by a V-shaped spring at.
each of the joints.
Rods slide in suitable guideways on the second table-section. Each rod carries.
at its inner end twin rollers adapted to engage the bars of the sack-holder near the
joints. In order to close the sack-holder against the force of the springs the rods.
are drawn together by means of the ropes passing over pulleys and connected to
the said rods and a treadle. To retract the rods we attach ropes to their outer
ends, which ropes pass over pulleys and carry weights.
The first table-section provided with a narrow opening through which the
mouth end of the sack passes during the sewing operation.
Small pulleys are arranged along each side of the opening between which the
sack holder passes and is maintained in a closed position during the operation of
sewing the sack.
A travelling belt is arranged onto which the sack passes from the carrier-floor
and by which it is carried to the point at which it is removed from the machine.
The main driving-shaft is journalled in suitable bearings secured to, the first.

page_text: table-section and projecting over the second table-section. The shaft carries two
pulleys one on each side of the opening in the table. The shaft also carries a spur
gear adapted to engage the racks on the sack holder. A shaft is mounted in
adjustable bearings on the first table-section and carries pulleys and a spur-gear
the latter being adapted to engage the racks.
Belts pass around the pulleys and transmit motion from the driving shaft to the
other shaft. The further function of these belts will be described hereinafter.
A. diamond shaped opening is formed in the table it being a continuation and
enlargement of the aforesaid opening.
A bar extends across the opening and grooved at each side to slide on ways on
the table for the purpose of supporting the forward end of the sack-holder as it is
pushed across the opening.
Lifting bars are pivoted at one end to the table the latter being slotted to
receive them. In their normal position the bars are slightly below the level of the
first table-section and each bar is bent, to enable it to be elevated without coming
in contact with the pulleys and belts.
Standards are supported on the first table section each having a pulley near its
upper end.
Pulleys are mounted in suitable bearings on the first table-section.
A double rope carrying a weight passes over one of the pulleys and thence
diverges, one part passing around a pulley and being secured to the end of the
sliding bar and the other part passing under a pulley and thence over the pulley on
one of the standards to the end of one of the lifting-bars to which it is secured.
Another rope secured to the free end of the other lifting bar passes over the pulley
on the other standard and thence around a pulley on the frame of the machine to
the rope to which it is connected by which arrangement both bars are elevated
simultaneously.
A spur-gear mounted on a shaft one end of which is supported in a fixed bearing
on the under side of the table section and the other end in a vertically-moving
bearing which passes through a suitable opening in the first table section and is
provided with a pin with which a wedge-shaped cam pivoted on the sliding bar is
adapted to engage in order to lift the spur-gear into engagement with the rack on
the under side of the bar. The rack and the spur gear will remain in engagement
until the cam passes entirely under the pin when the bearing will drop and
disengage them. A hook is pivoted on the bar and adapted to engage a lug on
the under side of the sack-holder the hook and lug being held in engagement by
the weighted end of the hook. The hook and lug are disengaged by means of a
wedge-shaped block on the first table-section with which a pin on the weighted
end of the hook is adapted to engage as the sliding bar nears the end of its
travel. The object of this mechanism is to carry the sack-holder forward after
it has passed out of engagement with the spur-gear. Motion is imparted to the
spur-gear by means of a belt passing around pulleys on the shafts.
The travelling belt travels around sprocket-wheels on the shafts. One of the
shafts also carries a bevel-gear which meshes with a bevel gear on a vertical
shaft this shaft receiving its motion from the main shaft through the medium of
bevel gears. The movement of the travelling belt is constant during the operation
of the machine. The shaft also carries at each end a friction-pulley.
The carrier-floor travels around sprocket-wheels on the shafts and one of the
shafts carries at each end a friction-pulley similar and in close proximity to the
pulleys on the shaft carrying the friction pulley.
•
.
Vertical rods having a limited vertical movement in bearings are attached to
the frame of the machine. The upper ends of these rods engage the free end of
the first table-section and their lower ends are bent and enlarged. A shaft
journalled in the ends extends across the machine and carries at each end an idler-
pulley adapted to be brought into engagement with the friction-pulleys and thereby
transmit motion to the former from the latter.
The treadle is prvoted to the frame of the machine and bas'a projection on each

page_text: arm extending beyond the pivotal point. When the treadle is depressed, the
projections will engage and lift the rods thereby raising the second table-section to
a level with the first section and also bringing the idler-pulleys into engagement
with the pulleys to put the carrier-floor in motion.
The sewing mechanism is as follows.
A reciprocating movement is given to the needle by means of a pitman connecting
rod and crank the latter being on the vertical shaft which is driven by the spur-gear
through the medium of a suitable train of gearing.
A rocking hook is provided having a pin near its point which catches the thread-
loop from the point of the needle and forms a chain-stitch. The rocking motion is
imparted to the hook by means of the bent rod which has a reciprocating movement
and passes through an opening in the heel of the hook. The rod is supported and
guided in bearings and being connected to the pitman by the vertical post has a
uniform movement therewith.
The operation is as follows: The sack-holder having been placed in position,
the operator stretches out the mouth of the sack at the hinges and presses on the
button thereby releasing the catches whose hooked ends are thereupon forced out
by the spring to engage the sack. The sack must now be opened and its opposite
sides attached to the hooks which will bring it into position to be filled.
When
the sack has been filled, the treadle must be depressed, causing the sliding bars to
approach each other, and thereby close the sack-holder against the force of the
springs. At the same time the second table-section is elevated to the level of
section thus bringing the rack into engagement with the spur-gear which will have
the effect of pulling the sack-holder forward between the pulleys. The carrier-
floor will also be put in motion by reason of the idler-pulleys being forced by the
depression of the treadle into engagement with the friction-pulleys. The sack will
thus be moved onto the travelling belt and the mouth will pass along the narrow
opening in the first table-section during which passage it will be sewed. Before
the sack-holder passes entirely from under the gear, the gear on the shaft will
engage the rack and thus continue the movement of the sack holder. When the
forward end of the sack-holder reaches the triangular opening it will engage and
be supported by the sliding bar in its further forward movement across the opening.
As soon as the sack-holder passes from between the pulleys the springs will force
it open, and thereby release it from the sack, another spring serving to limit its
outward movement. The sack holder will then occupy the position over the lifting-
bars. As the sack holder advances across the opening it will push the sliding bar
in front of it, and thereby elevate the weight. When the sack-holder passes from
under the spur gear it is carried onward to the end of its travel by the spur gear
which engages the rack on the under side of the sliding bar as before mentioned.
As soon as the sack-holder is disengaged from the hook on the sliding bar and the
rack from the spur-gear the weight will drop thereby causing the rope and its
branches to retract the sliding bar and at the same time elevate the lifting bar and
with them the sack-holder. The latter will slide down the inclined surface of the
bars onto the carrier belts which will return it to the second table-section ready to
be used with another sack.
I do not limit myself to the exact construction of devices herein described, as
they may be variously modified in a mechanical sense without departing from the
spirit of my invention.
I have described herein a sewing device in order that the operation of my
machine may be fully understood, but I do not intend thereby to limit myself to
the special form of sewing device described in operating my machine, for it is
obvious that other forms of sewing mechanisms might be used with equally good
results.

page_text: EE are rods sliding in suitable guideways ce on the table-section A¹. Each
rod carries at its inner end twin rollers e¹ e adapted to engage the bars of the
sack-holder near the joints c. In order to close the sack-holder against the
force of the springs, the rods E E are drawn together by means of
the ropes e e, passing over pulleys and connected to the rods E E and a
treadle E. To retract the rods E E we attach ropes ete to their outer ends,
which ropes pass over pulleys ee and carry the weights ee
The table-section A is provided with a narrow opening A**, through which the
mouth end of the sack passes during the sewing operation.
B B are small pulleys arranged along each side of the opening A** between
which the sack-bolder passes and is maintained in a closed position during the
operation of sewing the sack.
F is a travelling belt onto which the sack passes from the carrier-floor D and by
which it is carried to the point at which it is removed from the machine.
Gis the main driving-shaft journalled in suitable bearings 9 secured to the table
section A and projecting over the table-section A'. The shaft G carries two
pulleys g'g' one on each side of the opening A** in the table. The shaft G also
carries a spur-gear g2 adapted to engage the racks c² on the sack-holder. A shaft H
is mounted in adjustable bearings h on the table-section A and carries the
pulleys and the spur-gear 72, the latter being adapted to engage the
racks c².
II are belts passing around the pulleys and ' and transmitting motion from
the shaft G to the shaft H. The further function of these belts will be described
hereinafter.
•
A³ is a diamond-shaped opening in the table A, it being a continuation and
enlargement of the opening A**.
i
J represents a bar extending across the opening A³ and grooved at each side to
slide on ways jj on the table A for the purpose of supporting the forward end of
the sack-holder as it is pushed across the opening A³.
KK are lifting bars pivoted at one end to the table A. the latter being slotted
to receive them. In their normal position the bars K are slightly below the level
of the table-section A, as shown in full lines in Figure 2, and each bar is bent, as
at k¹, to enable it to be elevated, as designated by dotted lines in Figure 2, without
coming in contact with the pulleys and belts I I.
L Lare standards supported on the table-section A each having a pulley / near
its upper end.
MM and M² indicate pulleys mounted in suitable bearings on the table-section A
(see Figures 12 and 4).
N is a rope, doubled and carrying a weight N' in its loop. The double rope
passes over the pulley M and thence diverges, one part n passing around the
pulley M and being secured to the end of the sliding bar J and the other part n¹
passing under the pulley M and thence over the pulley on one of the standards
to the end of one of the lifting-bars K to which it is secured. Another rope n³
secured to the free end of the other lifting bar K passes over the pulley on the
other standard L, and thence around a pulley M on the frame of the machine to
the rope n' to which it is connected, by which arrangement both bars K are elevated
simultaneously.
O is a spur-gear mounted on a shaft Oone end of which is supported in a fixed
bearing o on the under side of the table-section A and the other end in a vertically-
moving bearing o', which passes through a suitable opening in the table-section A
and is provided with a pin o², with which a wedge-shaped cam o³, pivoted on the
sliding bar J, is adapted to engage in order to lift the spur-gear into engagement
with the rack on the under side of the bar J. The rack and the spur-gear O
will remain in engagement until the cam o³ passes entirely under the pin o², when
the bearing of will drop and disengage them. A hook Ji is pivoted on the bar J
and adapted to engage a lug B2 on the underside of the sack-holder, the hook and
lug being held in engagement by the weighted end J' of the hook. The hook J¹

page_text: and lug B are disengaged by means of a wedge-shaped block a' on the table-
section A, with which a pin 13 on the weighted end of the hook J is adapted to
engage as the sliding bar J nears the end of its travel. The object of this
mechanism is to carry the sack-holder B forward after it has passed out of engage-
ment with the spur-gear 2. Motion is imparted to the spur-gear O by means of a
belt O passing around pulleys O³ and H3 on the shaft Oand H respectively.
The travelling belt F travels around sprocket-wheels ff on the shafts F1 F2.
The shaft Falso carries a bevel-gear which meshes with the bevel gear on
the vertical shaft F³ this shaft F3 receiving its motion from the main shaft G
through the medium of bevel-gears ff. The movement of the travelling belt F
is constant during the operation of the machine. The shaft F¹ also carries at each
end a friction-pulley F
The carrier floor D travels around sprocket-wheels on the shafts D' D2 and the
shaft D¹ carries at each end a friction-pulley D³ similar and in close proximity to
the pulleys F on the shaft F'.
PP are rods having a limited vertical movement in bearings pp attached to the
frame of the machine. The upper ends of these rods engage the free end of the
table-section A', and their lower ends are bent and enlarged, as shown at p².
(See Figure 2.) A shaft P1 P1 journalled in the ends pl extends across the machine
and carries at each end an idler-pulley P adapted to be brought into engagement
with the friction-pulleys D³ and F and thereby transmit motion to the former from
the latter.
The treadle E' is pivoted to the frame of the machine at E2 and has a projec-
tion E on each arm extending beyond the pivotal point. When the treadle is
depressed, the projections E will engage and lift the rods PP thereby raising the
-table-section A' to a level with the section A, and also bringing the idler-
pulleys P² into engagement with the pulleys D³ and F to put the carrier-floor D
in motion.
The sewing mechanism is illustrated in detail on an enlarged scale, in Figures 5, 6
and 7, and its location on the machine is indicated in the dotted lines Q of
Figure 1.
R represents the needle to which a reciprocating movement is given by means of
the pitman r, connecting rod and crank the latter being on the vertical shaft F³,
which is driven by the spur gear S through the medium of a suitable train of
gearing (indicated as a whole by the letter S in Figures 1 and 2) it being shown
in the former figure by dotted lines.
T is a rocking hook having a pin & near its point, which catches the thread-loop
from the point of the needle R and forms a chain-stitch. The rocking motion is
imparted to the hook T by means of the bent rod U which has a reciprocating
movement and passes through an opening in the heel of the hook T. The rod Ü
is supported and guided in bearings u u, and being connected to the pitman by
the vertical post U¹ has a uniform movement therewith.
The operation is as follows: The sack-holder having been placed in position, as
shown in Figure 1, the operator stretches out the mouth of the sack at the
hinges and presses on the button, thereby releasing the catches d, whose
hooked ends are thereupon forced out by the spring to engage the sack.
The sack must now be opened and its opposite sides attached to the hooks et c',
which will bring it into position to be filled. When the sack has been filled, the
treadle E must be depressed, causing the sliding bars E to approach each other,
and thereby close the sack-holder against the force of the springs At the
same time the table-section A' is elevated to the level of section A, thus bringing
the rack into engagement with the spur-gear g², which will have the effect of
pulling the sack-holder forward between the pulleys B. The carrier-floor D will
also be put in motion by reason of the idler-pulleys P2 being forced by the
depression of the treadle into engagement with the friction pulleys D³ and F4.
The sack will thus be moved onto the travelling belt F, and the mouth will pass
along the narrow opening A2* in the table-section A, during which passage it

page_text: The
will be sewed. Before the sack holder passes entirely from under the gear g².
the gear on the shaft H will engage the rack c³, and thus continue the movement
of the sack-holder. When the forward end of the sack-holder reaches the diamond
opening A³ it will engage and be supported by the sliding bar J in its further.
forward movement across the opening A³. As soon as the sack-holder passes from
between the pulleys B' the springs will force it open, and thereby release it
from the sack, the spring a³ ³ serving to limit its outward movement.
sack-holder will then occupy the position indicated by dotted lines in Figure 1,
it being over the lifting-bars K. As the sack-holder advances across the opening A³.
it will push the sliding bar J in front of it, and thereby elevate the weight N¹ to
the position shown in full lines in Figure 2. When the sack-holder passes from
under the spur gear it is carried onward to the end of its travel by the spur-.
gear O, which engages the rack on the under side of the sliding bar J, as before
mentioned. As soon as the sack-holder is disengaged from the hook on the
sliding bar J and the rack 2 from the spur-gear O the weight N' will drop to the.
position shown in dotted lines in Figure 2, thereby causing the rope N and its
branches to retract the sliding bar J and at the same time elevate the lifting-
bars K and with them the sack-holder B. The latter will slide down the inclined
surface of the bars K onto the carrier-belts I I, which will return it to the.
table-section A' ready to be used with another sack.
I do not limit myself to the exact construction of devices herein described, as.
they may be variously modified in a mechanical sense without departing from the.
spirit of my invention.
I have described herein a sewing device in order that the operation of my
machine may be fully understood; but I do not intend thereby to limit myself
to the special form of sewing device illustrated and described in operating my.
machine, for it is obvious that other forms of sewing mechanisms might be used
with equally good results. Neither do I intend to claim herein the special form
of sewing device illustrated.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed as communicated to me by
my foreign correspondents, I declare that what I claim is :-
-
1. In a machine for filling and sewing sacks, the combination of a sack-holder. a
device for closing said sack-holder and the mouth of the sack held thereby, a table,.
pulling gears, and a sewing device, substantially as set forth.
2. In a machine for filling and sewing sacks, the combination, with a table and
sack-holder, of pulling-gears mounted on said table and adapted to engage the
sack-holder, a sewing device supported on the table, lifting-bars adapted to receive
the sack-holder, after the sewing is completed and the sack released from the
holder, and carrier-belts adapted to receive the holder from the lifting-bars and
return it to the initial point, substantially as specified.
3. The combination of the constantly-moving belt F with the intermittently-.
moving floor D and suitable means to intermittently transmit motion from the
belt F to the floor D, substantially as specified.
4. The combination, with the sliding bar J and the sack-holder, of the lifting-
bars K, a looped rope having branches attached to the ends of the lifting-bars and
to the sliding bar, and a weight attached to the looped rope, substantially as
specified.
5. A sack-holder consisting of four bars hinged together and springs at two
opposite joints to force the holder open, combined with sliding bars adapted to
engage the other two opposite joints of the holder, and means to actuate the bars
to close the holder against the force of the springs, substantially as specified.
6. A sack-holder consisting of four bars hinged together and having a rack on
two of its sides, forming a straight line when the holder is closed, combined with a
spur gear adapted to engage the rack and move the sack-holder, substantially as
specified.

page_text: 7. A table formed in two sections, one section being hinged to the frame at its
outer end and normally lower than the other section, combined with a sack-holder
having a rack on its upper face and initially supported on the lower section, a spur-
gear mounted in bearings on the higher section, suitable means to elevate the
lower section to the level of the higher to bring the rack into engagement with
the spur-gear, and means to revolve the spur-gear to move the sack-holder,
substantially as specified.
Dated this 11th day of Anril 1893
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.