Year: 1888

page_text: I, PATRICK DEEVY, of Dudley, County of Wapello, State of Iowa, in the
United States of America, Blacksmith, 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 relates to improvements in wheeled scrapers; and it consists in
certain novel features hereinafter described and then pointed out in the claims.
In the accompanying drawings forming part of this specification, Figure 1 is a plan
view, Figure 2 is a side elevation. Fig. 3 is a similar view showing the parts in a
different position. Fig. 4 is a side view showing a modification, Fig. 5 is a plan view
of the same. Fig. 6 is a detail view.
Referring to the drawings by letter, A designates the scoop which is preferably
rectangular in shape, and has the front edges of its sides and bottom sharpered to
facilitate its passage through the earth. The rear portion of the bowl is strengthened
and stiffened by a malleable iron casting B, which is riveted about the rear inner and
upper edge of the bowl, as best shown in Fig. 1. The scoop is also provided on the
under side of its bottom with a steel reinforcing plate C, which receives the wear on
the scoop and prevents its bottom being worn away.
From the sides of the scoop near the centres thereof rise the standards D D having
the eyes E E at their upper ends in which the axle F is journaled. Collars G G are
formed on the axle just inside of the upper ends of the standards D D to prevent
lateral movement of the scoop upon the axle. Just outside of the upper ends of the
standards D D are secured the crank arms H of the axle, the said crank arms having
spindles at their lower ends on which the supporting and carrying wheels I are

page_text: mounted. These spindles are provided with hoods J which project outward over
the hubs K of the wheels, and protect the spindles from sand, dirt or grit of
any kind.
From the rear sides of the standards D project outwardly extending stops or
catches L, which are adapted to bear against the rear sides of the cranks H.
From the rear side of the scraper projects a slotted arm M in which is pivoted a
latch N. The upper end of the said latch is provided with a normally rearward
extending barb O, and from the lower and thereof extends a horizontal arm P. The
front end of this arm bears against the rear side of the scoop to which are secured
the usual rearwardly extending arms Q.
The latch is formed in the shape of a bell crank lever, as shown, and is pivoted to
the slotted arm M at about the centre of its catch arm, which is beveled off at the
top so as to automatically engage the rearwardly projecting U-shaped frame herein-
after refer to. The lower or lever arm of the latch projects outward from the
bowl and tends by its weight to constantly throw the upper end of the latch away
from the bowl and at the same time by bearing against the scoop serves to limit the
play of the latch.
R represents a pair of brackets, one of which is attached to the outer side of each
of the sides of the scoop at a suitable distance from the front edge thereof.
S represents an U-shaped yoke, having the forwardly extending arms T on opposite
sides of the scoop and the cross bar U behind the same.
The front ends of the arms T are pivoted to the brackets R the said arms T being
provided with a series of openings V, whereby they may be adjustably connected to
the scoop. At a suitable distance in the rear of the series of openings V the arms
are provided with a second series of openings W. ✗ represents a pair of links which
are pivoted to the lower ends of the axle cranks H, and having their lower ends
working in vertical slots in the arm T. Bolts Y extend through either of the series
of openings W and through openings in the lower ends of the links X, and thereby
serve to adjustably connect the lower ends of the said links to the said arms.
Z represents stops or detents, one of which is provided for each arm T near the
front end thereof. The said stops or detents extend upward and rearward from the
said arms, and have their upper ends bent inward at right angles, as shown. These
stops or detents may be either formed separately from the arms T and bolted thereto,
as shown, or they may be formed integrally with the said arms, as I do not limit
myself in this particular.
From the rear side of the cross bar U, of the yoke, at the centre thereof extends a
rearwardly projecting lever a, the rear end of which is curved upward, as shown.
On opposite sides of the scoop at a slight distance in the rear of the brackets N
are secured cars b, to which are pivoted the ends of an U-shaped frame c. A tongue d
is rigidly attached to the central portion of the said frame and projects forward
therefrom.
The points at which the rear ends of the arms of the frame care pivoted to the
scraper are nearly on a level with the top edges of the said scraper. e represents
a vertical arm which extends upward from the frame c, and to the said arm is pivoted
a catch/.
The upper end of the arm e is slotted and the catch fis pivoted within said slotted
portion. The catch serves to hold the scoop in the position shown in Fig. 3 by
engaging the flange g of a projection on the back of the scoop. The slot in the
upper end of the arm e is just deep enough to allow for the necessary range of the
catch and a spring i is secured at one end to the upper edge of the catch and has its
end pressing against the inner upper face of the slot or recess in the upper end of the
arm e. The free end of the arm e is curved upward so as to ride over the axles and the
back upper edge of the scoop and also over the rear cross bar U, such formation being
adopted in order that when the scoop is dumped the catch will automatically engage
the flange g and hold the parts in the position shown, until the engagement is broken
by the operator.
The operation of my invention is as follows: The machine is in its normal or

page_text: initial position when the scraper is olevated a slight distance above the earth and is in
a horizontal position, as shown in Fig. 2. When thus arranged, the catch N
is engaged with the cross bar of the yokes S and the catch fis disengaged from the
projection h.
In order to cause the scoop to bite into the earth and thereby become filled with
material, as it is drawn forward, the catch N is disengaged from th yoke S and the
latter is turned upward so that the front edge of the scoop rests on the ground, thereby
causir g the links X which connect the arms of the said yoke to the cranks of the
axle to turn the latter so as to raise the supporting wheels above the level of the
bottom of the scoop. When the yoke is turned upward far enough to cause the scoop
to be arranged at such an angle as will readily enable it to become filled with material,
the detents bear against the upper sides of the frame c and thereby maintain the
scoop in the said inclined position, the forward draft of the machine provonting the
scoop from turning down while being filled.
In order to carry the load to its place of deposit, the yoke S is turned to its initial
position, shown in Fig. 1 by bearing downward on the lever a until the latch or
catch N automatically engages the said yoke S, and in order then to dump the load
and secure the scoop in position, the operator then grasps the lever a and tilts the
scoop to the position shown in Fig. 3, at which point the projection / becomes auto-
matically engaged by the catch, thereby holding the scoop in its position.
When in this position, the machine may be readily drawn from one place to another,
as will be readily understood.
If it is merely desired to dump the scoop of its contents, the same will not be
turned quite so far as to cause the projection to become engaged by the catch f.
In Figs. 4 and 5 I have shown another form of my invention.
In this arrange-
ment, upon each side of the scraper I secure an outwardly extending bracket 19, to
which the rear ends of the draw-bars 21 are pivotally connected through the medium
of bolts 22, the brackets 19 being so formed that the draw bars will be at some
distance from the sides of the scraper bowl. The draw bars are of peculiar form,
being provided with a rearwardly extending lug or ear 23, by means of which pivotal
connection with the brackets 19 is established, said lug or ear extending backward
from the upper end of a substantially vertical portion 24. From the lower end
of the portion 24 the draw-bars curve forward and then upward and forward, as
shown.
Al the rear of the scraper there is arranged the main operating lever 30, said
lever being provided with two outwardly branching arms 31, which extend forward
a short distance in diagonal lines as they leave the lever 30, and then extend outward
at right angles to the lever in the same horizontal plane, to be bent so as to extend
forward in parallel lines at 32, the forward parallel extending portions being shown
at 36. To the arms 31 there is secured a bar 33 formed with two forwardly and
downwardly extending arms 34, the lower ends of which are pivotally secured to the
sides of the scraper by brackets 35.
As shown, the arms 34 are arranged so that between the outer faces and the
forwardly extending portion 36 of the arms 31 there is a space, and in this space so
formed there are arranged connecting rods 37, said rods being pivotally mounted
through the medium of bolts 38.
The forward ends of the connecting rods 37, are pivotally connected to rearwardly
extending and slotted lugs 39, formed upon the crank arms 15, the forward ends of
the connecting rods entering the slot formed in said lug 39.
From the construction just described it will be seen that the scraper is hung so as
to swing upon the horizontal portion of the axle, and it will also be seen that the
angle at which the scraper hangs depends upon the length of the connecting rods 37,
and consequently in order that this angle may be varied I have formed said connecting
rods with a number of holes 2, through any one of which the bolts 38 may be passed,
in order that the bowl may be adjusted as required.
To each side of the scraper, and near the forward edge of said scraper, there is
rigidly secured a bracket 45, which serves as the support for a pivotally mounted.

page_text: lever 46, to one of which there is secured an outwardly projecting pin 47. The
opposite and lower ends of the levers 46 are connected by link 49 to the lower ends
of lugs 50, formed upon the arms 34 of the bar 33.
In connection with the pin carrying levers 46 I arrange oscillating strips 52 in the
rear ends of which there are formed flaring bell shaped slots 53. The strips 52 are
made integral with the practically vertical strips 54 that fit closely against the inner
faces of the draw bars 21, the upper end of each strip being bent to form ears 55,
which overlap the upper edges of the said draw bars. The lower ends of the strips 54
are bent outward beneath the draw bars to form lugs or ears 56, and in these lugs or
ears 56 I make threaded sockets, in which there are mounted adjusting screws 57.
It will be seen that as the scraper is lowered the lugs 50 will be thrown back, and,
drawing upon the connecting rods or links 49, will throw the upper ends of the
lever 46 forward, so that their pins 47 will enter the bell shaped slots 53 formed in
the oscillating strips 52 and consequently, when the scraper is being loaded, all
possibility of the accidental dumping of the same will be avoided; also, a cortain
amount of play will be permitted owing to the fact that the strips 52 are free to
oscillate within certain limits.
Having thus described my invention, what I claim and desire to secure by Letters
Patent, is
1. A wheeled scraper provided with an automatic locking device consisting of a
catch pivotally mounted on a standard, the free end of said catch being curved
upward, substantially as described.
2. In a wheeled scrapor, the scoop having a reinforcing strip secured thereto, as
set forth.
3. The combination of the crank axle, the suspended scoop, the rear U-shaped
frame pivoted to the scoop and the links adjustably connecting said frame and the
axle, substantially as set forth.
4. The combination of the crank axle, the scoop suspended thereon, the rear frame
pivoted to the scoop and connected to the axle, draw bars pivoted to the scoop and
connections between the rear frame and the draw bars, substantially as set forth.
5. In a wheeled scraper, the combination with the crank axle, of the scoop
and a manipulating lever supported by a frame within which the scoop swings, as
set forth.
6. The combination of the scoop, the rear frame pivoted thereto, the slotted
rearward extending arm, and the latch pivoted in said slotted arm and engaging the
said frame, as set forth.
7. The combination with the cranked axle, of the scoop pivotally hung thereon,
the draft frame pivotally secured to the sides of the scoop, the rearwardly extending
yoke pivoted to the sides of the scoop below and in advance of the pivotal point of
the draft frame, and connected to the cranked axle, the arm e rising from the draft
frame, and the catch pivoted to said arm and adapted to engage said yoke, as
set forth.
8. The combination of the cranked axle, the scoop hung thereon, the draft frame
pivoted to the scoop, the rearwardly extending yoke also pivoted to the scoop, the
slotted arm extending rearwardly from the scoop, and the catch pivoted in said arm
and bearing against the scoop, at its lower end, and engaging the yoke at its upper
end, substantially as described.
9. The combination of the scoop having the vertical standards, the cranked axlo
journaled to the said standards and having the supporting wheels, the draft frame
having its arms pivoted to the side of the scoop, the yoke having its arms pivoted to
the sides of the scoop at points below and in advance of the pivotal connections of
the draft frame, the said yoke being further provided with the detents adapted to
engage the draft frame. for the purpose set forth, and the links connecting the sid
yoke to the cranks of the axle, substantially as described.
10. The combination of the scoop, the draft frame pivotally connected thereto, the
oranked axle from which the scoop is suspended and having the supporting wheels,

page_text: the yoke extending rearward from the scoop, and having its side arms pivoted to the
sides of the scoop and longitudinally adjustable thereon, the said yoko being further
provided with the detents for the purpose set forth, and the links pivoted to the lower
end of the crank arms of the axle, and having their lower ends pivoted to the side
arms of the yoke and longitudinally adjustable thereon, substantially as described.
11. In combination with the scoop, the cranked axle from which the scoop is
pivotally hung, the draft frame pivotally attached to the scoop, and the yoke pivotally
attached to the scoop and having the arms or detents to engage the draft frame to lock
the scoop when the latter is swung to an incline] position, as set forth.
.ח
1
Q 1
0 A
1000
BERNHARD DUKES,
226, High Holborn, London, W.C.,
Agent for the Applicant.