A Portable or Travelling Sack Hoist.
Year: 1893

page_text: Date of Application, 19th Oct., 1893
Complete Specification Left. 15th July, 1894-Accepted, 18th Aug., 1894
PROVISIONAL SPECIFICATION.
A Portable or Travelling Sack Hoist.
I, THOMAS POWELL, of Grove Farm, Pyle, Bridgend, Glamorganshire, Farmer,
do hereby declare the nature of this invention to be as follows:-
This invention consists in an appliance designed for lifting sacks from the ground
into wagons.
It is specially adapted for collecting, easily and rapidly, sacks of
potatoes or other produce as they lie in the fields and like places. The appliance
is constructed, arranged and operated as follows. Hinged at one side of a carriage
or trolley mounted on wheels is a frame composed of two posts coupled at top by a
cross arm. Suspended by a chain, or its equivalent, to the cross arm is a beam
which normally lies at a right angle to the cross arm and extends over the wagon
which accompanies the appliance when in use.
At the
Behind each post aforesaid is an arm. These arms are hinged at top to the
posts and, after having been inclined across the trolley, are connected thereto by
bolts passed through slots provided towards the lower ends of the arms.
outer end of the beam aforesaid is attached a chain for connection to a band passed
round each sack in turn. At the inner end of the beam is connected a sling, being
a chain loop or the like which at the lower end is attached to a pole extending
back from the centre of the beam. Towards the top of the sling is a horizontal
bar.
To pick up a sack an attendant in the wagon seizes the chain at the outer end of
the beam and tilts the beam downwards. By a second attendant the sack is hitched
to the chain. A third attendant having mounted a ladder at the sling end of the
beam then steps into the sling and in descending by gravitation raises the sack
which swings inwards and tilts the hinged frame from the wagon over the side of
which the sack is thus brought. It is lowered by the attendant at the sling end of
the beam who, as the sack is raised, descends to the ground. By means of the
horizontal bar of the sling the attendant at the sling is enabled to lower the sack
into position in the wagon as directed by the attendant therein.
Dated this 18th day of October 1893.
NICHOLAS WATTS,
Chartered Patent Agent.
COMPLETE SPECIFICATION.
A Portable or Travelling Sack Hoist.
I, THOMAS POWELL, of Grove Farm, Pyle, Bridgend, Glamorganshire, Farmer,
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 :-
This invention consists in an appliance designed for lifting sacks from the ground
into wagons.
It is specially adapted for collecting, easily and rapidly, sacks of
potatoes or other produce as they lie in the fields and like places. The appliance
is constructed, arranged and operated as follows. Hinged at one side of a carriage
or trolley mounted on wheels is a frame composed of two posts coupled at top by a
cross arm. Suspended by a chain, or its equivalent, to the cross arm is a beam
which extends over the wagon which accompanies the appliance when in use.
SD017

page_text: Behind each post aforesaid is an arm. These arms are hinged at top to the posts
and, after having been inclined across the trolley, are connected thereto by bolts
passed through slots provided towards the lower ends of the arms.
At the outer
end of the beam aforesaid is attached a chain for connection to the sacks to be
lifted. To the inner end of the beam is connected a sling, being a chain loop, or
the like, which, at the lower end, is attached to a foot-board connected to the
lifting beam. The sling is fitted with cross bars.
To pick up a sack, an attendant in the wagon seizes the chain at the outer end
of the beam and tilts the beam downwards. By a second attendant the sack is
hitched to the chain. A third attendant having mounted a ladder at the sling end
of the beam then takes hold of one of the cross bars of the sling and steps off the
ladder on to the foot-board and in descending by gravitation raises the sack which
swings inwards and tilts the hinged frame back. The sack is thus brought over the
side of the wagon. The sack is lowered by the attendant at the sling end of the
beam who, as the sack rises, descends to the ground and deposits the sack into
position in the wagon as directed by the attendant therein.
Referring to the accompanying sheets of illustrative drawings,
Fig. 1 represents a view of my improved portable or travelling sack hoist as seen
from the rear end thereof.
Fig. 2 is a side view with portions removed for purposes of clearer illustration
and simplification.
Carried on hinges a at one side of the trolley or carriage b is a frame composed
of two posts c coupled at the top by a cross arm c¹ and at bottom by a cross
arm².
Suspended from the cross arm c¹ by a chain d and link d' is a beam e extending
over the wagon which accompanies the hoist when in practical use. Hinged at
their upper ends as at to the posts c are backstays which are inclined across
the carriage b. Through slots in the lower ends of the backstays f project bolts g
fixed to the sides of the carriage, over which bolts g the backstays are free to
work within variable limits regulated by adjusting pins i passed transversely
through the backstays, as shown. At the outer end of the beam e is attached a
chain for connection to the sacks to be lifted. At the inner end of the said
beam e is attached a sling k consisting of chains or ropes carrying cross bars. An
end elevation of the sling is shown at Fig. 3.
At its lower end the sling k is connected to a foot-board suspended at the
forward end to the beam e. Connected by links m, m³ to the pole n is a ladder o
(shown in section at Fig. 1). The link m is pivotted to the pole n at n'. Extending
from the link m and made in one piece therewith or rigidly attached thereto are
counterweight arms m² of which a section is shown at Fig. 4. From the arms m³
of which there are two, (one at each side of the pole n) a quadrant p extends
below the pole n and governs the upward range of the arms m³. The ladder may
be kept for as long as may be desired with its lower end resting on the ground, by
means of a movable holding pin p₁ passed through the quadrant p and bearing on
the upper face of the pole n.
This pin is not necessarily used in the field. The appliance is put into practical
use for lifting sacks of potatoes or the like in the manner following.
The hoist is drawn up alongside a wagon 9 which is placed between it and the
Back. The front end of the beam e projects over or above the wagon. An
attendant in the wagon seizes the chain and tilts the beam e forward. By a
second attendant, who is on the ground, the chain j is hitched to the sack, or the
sack is seized between claws or grippers adjusted by the said second attendant. A
third attendant having mounted the ladder o grasps the uppermost cross bar of the
sling and stepping off the ladder places one foot ou the foot-board 1. By the
weight of the said third attendant the sling end of the beam e is lowered and
the sack at the opposite end is raised and swinging inwards towards the wagon 9
tilts the frame c, c' away from the wagon to the extent allowed by the pins i in the
slots of the backstays f. This causes the raised sack to swing inwards over the

page_text: outer side of the wagon q, and the attendant at the sling end having reached
the ground lowers the sack into the wagon as directed by the attendant therein.
The pin p being absent, the ladder o rises under the downward movement of the
counterweight arms m³ as soon as the attendant leaves the ladder and steps on to
the foot-board 1. The ladder thus raised assumes an approximately vertical
position and is held suspended clear of the ground. It is free to swing both
sideways and backward and forward on the pivots m³ and m of the link m¹.
The method of attachment of the ladder to the hoist may be varied; the
particular method described and shown in the drawings being given merely as an
example of a convenient way of attachment and working.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
•
1. A portable or travelling hoist, mainly for lifting sacks of potatoes and the
like into wagons; the said hoist being a wheeled carriage such as b arranged for
horse or other traction and having hinged thereto at one side thereof a frame such
as c, c', c, with hinged and slotted backstays f for controlling the range of tilt of
the frame c, c, and with lifting beam e carrying a sling such as k and foot-board
such as ; the parts being constructed, arranged and fitted to operate substantially
as hereinbefore described with reference to the accompanying sheet of drawings.
2. The combination of a portable or wheeled hoist such as is set forth in the
preceding claim with a ladder such as o suspended by an universal joint, or the
equivalent thereof, from a pole or arm such as n fixed to the hoist carriage;
the said ladder being arranged to be carried out of contact with the ground when
the hoist is travelling.
Dated this 16th day of July 1894
NICHOLAS WATTS,
Chartered Patent Agent, Bristol.