An Improved Lifting Apparatus for Sack Barrows.
Year: 1893

page_text: Date of Application, 5th Apr., 1893-4ccepted, 27th May, 1893
COMPLETE SPECIFICATION.
An Improved Lifting Apparatus for Sack Barrows.
We, WILLIAM ROBINSON, Storekeeper, and FREDERICK DUNCAN FERGUSSON,
Schoolmaster, both of Makotuku, in the Provincial District of Hawke's Bay, in
the Colony of New Zealand, 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 relates to the barrows or trucks employed for carrying sacks and
other articles and its object is to provide a simple apparatus which is combined
with the ordinary sack barrows so that the sack or other object may be readily
lifted by the man who is wheeling the barrow or truck on to a cart or other
receptacle, thus enabling an extra man to be dispensed with and reducing the
labour of lifting. The apparatus is so designed and attached that it can be readily
removed and the barrow worked with or without the attachment as desired.
In a barrow or truck constructed to embody these improvements the iron plates
or foot of the truck upon which the sack or other article rests is provided with a
rack gearing with a pinion by means of which the sack or other article may easily
be raised to the required height.
The accompanying drawings reference to which is hereinafter made, illustrate in
what manner this invention may be carried into effect.
Figures 1 and 2 illustrate respectively front and side elevations of an ordinary
sack barrow or truck having the improved apparatus combined therewith.
Figure 3 is a front view of the lifting gear drawn to an enlarged scale.
Figures 4 and 5 are respectively a side elevation and plan of the lifting gear and
the enclosing case.
Figure 6 represents a section taken along the line A B Figure 3.
Figure 7 is an illustration of the handle ratchet and pawl of the lifting gear.
Referring to the drawings, the sides and handles a of the sack barrow are
provided with cross slats a' a² a³, wheels a' and the ordinary iron shoe a. A guide
or bed b made of cast or malleable iron and secured to the slats a¹ and a² by
screws 6 has formed with or attached to it at its upper end a casing or chamber 6³
which rests on the top of the upper slat a¹ and thus assists in supporting the
downward thrust of the load and also forms a convenient case in which to fix
the necessary gearing, the case being closed by a plate 6* secured by screws 6. The
guide plate 6 has on its face a groove 6 extending throughout its length, in which
the slide and rack may move freely up and down carrying with it the foot c' of the
truck (see Figures 1 and 2). The foot lifts with it the sack or other article
resting upon it and in the case of a box or similar article spikes c² are attached.
A pinion d gears with the rack c and is carried by the shaft d' or bush e¹ in a
recess be formed in the casing. Secured to the pinion is the wheel e. A second
pinion is carried by a shaft to which is fitted at its outer end a suitable
handle and a ratchet and pawl f* mounted upon the box or casing 6². The
spur wheel e gears with the pinion f. A light guide g is provided for the purpose
of steadying a sack when being lifted. It is fastened by screws g¹ so as to be
readily removable when desired.
The operation of the apparatus is as follows.-The sack or other article having
been placed upon the truck is wheeled to the desired place. The handle f' is then
rotated and the rack c rises carrying with it the foot c¹ and the sack or other
article. The ratchet f³ controls the apparatus and prevents accidental descent.
The sack may thus be easily raised to a convenient height for transferring to a cart
or other receptacle.
It will be evident that instead of securing the guide 6 by means of screws as
shewn that hooks or other similar or equivalent devices may be employed.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is―
1. In a sack or similar barrow or truck a foot plate capable of being operated
relatively to the truck constructed arranged and operated substantially as and
for the purpose hereinbefore described and as illustrated by the accompanying
drawings.
2. The combination with a sack or similar barrow or truck of a movable foot, a
connecting rack, a guide plate and suitable gearing, all constructed arranged
and operated substantially as hereinbefore described and as illustrated by the
accompanying drawings.
3. A lifting device for sack and similar trucks and barrows constructed arranged
and operated substantially as hereinbefore described and as illustrated by the
accompanying drawings.
Dated this 30th day of March A.D. 1893.
WILLIAM E. HEYS,
Agent for the Applicants.