Mode of Attaching them to their carriers or unains.
Year: 1887

page_text: Date of Application, 8th Sept., 1887
Complete Specification Left, 7th July, 1888
Complete Specification Accepted, 17th Aug., 188
Mode of Attaching them to their carriers or unains.
I ADOLPH VOGT of Kiel in the Empire of Germany Civil Engineer do hereby
declare the nature of this invention to be as follows:-
My Invention has for its object to so construct excavator buckets and attach them
to their carriers or chains that they are capable of working more expeditiously than
hitherto.
According to my Invention I make the buckets of a prolonged cradle-like shape in
side view their unattached ends passing between the carriers or chains and their
forward ends instead of being attached to the carriers or chains at the part parallel
to the said carriers or chains are attached by their ends or mouths to projections from
the chains projecting at a right or other convenient or sufficient angle thereto as to
cause an earlier tipping of the bucket as it passes over the upper wheel or tumbler or
this earlier tipping may be caused by a rod or lever attached to the bucket and to
one of the links forward of it. The bottom of the bucket owing to this different
arrangement instead of being of the usual curve is made of a curve such that it has
the necessary concentricity with the axis of the upper wheel or tumbler.

page_text: Improvements in the Buckets of Excavating Apparatus and the
Mode of Attaching them to their Carriers or Chains.
I, ADOLPH VOGT of Kiel in the Empire of Germany, Civil Engineer 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:
My Invention has for its object to so construct excavator buckets and attach them
to their carriers or chains that they are capable of working more expeditiously than
hitherto the tipping of the buckets as they pass over the top tumbler being caused by
means of my improvements to take place earlier than is the case with buckets as
ordinarily arranged.
And in order that my said Invention may be fully understood I shall now proceed
more particularly to describe the same and for that purpose shall refer to the several
figures on the annexed sheet of drawings the same letters of reference indicating
corresponding parts in all the figures.
Figures and 2 of the accompanying drawings represent a chain 9 carrying
buckets d according to this invention in elevation and partially in section respectively
(Figure 2 being drawn to a larger scale than Figure 1). The buckets d are of a
prolonged cradle like shape and are constructed with bottoms d¹ curved in the arc of
a circle struck from the axis of the top tumbler (a) as a centre so that the edge of a
fixed scraper c Figure 1 may effectually scrape the spoil out of the buckets as they
pass over the top tumbler.
The unattached ends d³ of the buckets project between the links of the chain g so
as to prevent the spoil from dropping out at the side e which is
open.
In place of attaching the buckets to the chains at the side e in the usual manner
the links in front of the buckets are provided with lever arms f standing out
perpendicularly or at a suitable angle from the said links being rivetted to the mouths
of the buckets.
In place of this arrangement an equally advantageous form of construction
indicated in dotted lines in Figure 1 may be employed according to which an arm or
link is connected to a joint pin K at the end of the link h and to the sides of the
bucket at ¹.
Directly the link reaches the side or surface of the top tumbler a Figure 1 the
spoil is discharged from the bucket which is completely emptied by the action of the
scraper cas-the link is carried round on the said tumbler.
The tipping of the buckets can be made to take place as early as desired by
adjusting the arm i in connection with different pins in the chain. For example in
place of connecting it with the pin at the end of the first link has indicated by the
dotted lines in Figure 1 it may be attached to the second or next link in advance of
the link h.

page_text: 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. The improved open excavator buckets attached to the chains by connecting their
sides or mouths to arms (f) projecting at a suitable angle from the links in front of
the buckets or to a rod or arm () connected to the pins of the links for the purpose of
accelerating the discharge or emptying of the buckets substantially as hereinbefore
described and illustrated in the accompanying drawings.
2. The arrangements and combinations of parts constituting the improvements in
excavator buckets and in the mode of connecting the same to their chains substantially
as hereinbefore described and illustrated in the accompanying drawings.