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Патент USA US2264939

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Dec. 2, 1941.
v2,264,939
L. HAWKINS
DROPPING BOARD SGRAPER
7
Filed April 20, 1940
‘KM ~
33 aka
I
a.,
Patented Dec. 2, 1941
2,264,939
UNITED STATES‘PATENT OFFICE
2,264,939
‘DROPPING BOARD SCRAPER
Luty Hawkins, mum Vernon, 111.
Application April 20, 1940, Serial No. 330,745
8 Claims.
(01.15-236)
This invention relates to poultry coops and 1' I I2 and I4. The supporting members I6 and I1
more particularly to an improved dropping board
are constructed in substantially U-form with the
scraper for a poultry coop;
'
bights I 8 and I 9, respectively. Extending at right
angles and inwardly from the lower end of the
An object of this invention is to provide an im
proved scraper for a dropping board which is so
bight I8 of the member I6 is a lower leg or ?ange
Extend
constructed that it will scrape the board upon ‘ " 20, which engages beneath the board I I].
movement of the-scraper in either direction.
Another object of this invention is to provide
an improved scraper structure including a pair of
scraper blades and means movable with the
blades for holding the blades against the dropping
board.
I
.
v A further object of this invention is to pro
vide a blade tensioning means for a dropping
to
board
slidably
scraper
engage
blade
thestructure
under side
which
of thedropping
is adapted
board so as to thereby press the dropping board
against the scraper blade structure, irrespective
_ of any unevenness in the dropping-board.
To the foregoing objects and to others which
may hereinafter appear, the invention consists
of the novel construction, combination and ar
rangement of parts as will be more speci?cally
referred to and illustrated in the accompanying
ing at right angles and inwardly from the lower
end of the bight I9 of the member I‘! is a lower
m:
leg or ?ange 2 I, which engages beneath the board
ID on the opposite side thereof from the side
which the leg 20 engages beneath. The bight I8
of the member I6 is formed with a horizontally
disposed inwardly extending upper leg or ?ange
22, which overlies the tops of ‘the blades I2 and I4.
The bight I9 'of the member I‘! is formed with a
' horizontally disposed inwardly extending upper
leg or ?ange 25, which overlies .the tops of‘the
blades I2 and I4. 'The blade I2 is provided with
an upper ?ange 23 and the blade I4 with an
upper ?ange 24. The ends of. the ?anges 23,24.
engage the lower faces of the upper ?anges 22, 25
of the members I6 ‘ and I1 respectively.
The
?anges I3 and I5 of the blades I2 and I4 are
drawing wherein are shown embodiments of the
secured against the inner faces of the bights I8
and I9 respectively, by spot welding 25“, or the
invention, but it is to be understood that changes,
variations and modi?cations may be resorted to
‘ like, whereby the blades I2 and I4 will be ?xed
at right angles to the members I6 and I1. ‘
which fall within-the scope of the invention as
The blade member I2 at its lower edge portion
is provided with an outwardly curved portion 26
30 and the lower terminal edge of the blade I2 is
Figure 1 is a perspective view of a scraper con
' provided with a keen edge 21 adapted to slidably
structed according to an embodiment of this in
engage the upper surface of the board I0. The
vention.
blade I4 is provided with an outwardly curved
Figure 2 is a sectional View taken on the line
lower portion 28 and with a keen edge portion 29
claimed.
In the drawing
2—2 ofFigure 1.
,
.
r
.
s
Figure 3 is a fragmentary sectional view of the
scraper, taken on the line 3—3 of Figure 2.
Referring to the drawing, numeral‘ I0 desig
‘ engageable with the upper surface of the board
‘ I 0. The blade structure hereinbefore described
is adapted to be moved lengthwise of the board I 0
and when the scraper blade structure is moved
nates generallya dropping board which is pref
to the left as viewed in the drawing, the blade I2
erably constructed of metal and is disposed in a 40 is adapted to scrape the droppings from the
horizontal position. ' An oppositely shiftable ' board III.v When the blade structure is moved to
scraper structure generally designated as I I slid
the right, the blade I4 is adapted to scrape the
ably engages the dropping board I0 and is adapt
upper surface of the board III.
.
ed to move lengthwise of the dropping board I!)
In order to provide a means whereby the two
in a selected direction so as to clean the upper 7 blades I2 and I4 may be held in sliding engage
surface of the board In. The scraper structure
ment with the upper surface of the board I? so
II comprises a pair of scraper blades I2 and I4
that in the event the board Ill is uneven, the
which are disposed in upwardly convergent rela
blades I2 and I4 will nevertheless contact along
tion.
their entire scraping edges with the board I 0,
The blades I2 and I4 are provided at the oppo- ’ I have provided a blade tensioning means com
site ends thereof with right angularly disposed
prising a bar generally designated as 30 which is
?anges I3 and I5, respectively, which are ?xed to
secured as by welding 3| to the lower ?anges or
the inner surface of a pair of vertically disposed
legs 20 and 2 I. The blade tensioning member 30
blade supporting slide members I6 and IT. The
is formed with an arched intermediate portion 32
members I6, I‘! constitute a carrier for the‘ blades 55 having the convex surface thereof slidably' en
2.
2,264,939
gageable with the under surface of the board Ill
and the tensioning member 30 is also formed with
a pair of flat portions 33 and 34 extending from
the longitudinal edges of the arched portion 3!.
In practice the peak of the arched portion 32
may be slightly above the horizontal plane de?ned
by the keen edges 21 and 25 so that the board ill
will be tensioned or slightly bent between the di
blade tensioning member ?xed to the lower por
tions of said end members and slidingly engaging
the lower surface of said board.
2. A dropping board scraper comprising a blade
structure for travelling on the upper face of the
dropping board, a pair of upright carrier mem
bers for and ?xed to the opposite ends of said blade
structure and being opposite shif table in unison, a
lower ?ange carried by said members arranged
vergent lower edges of the two blades [2 and I4.
Furthermore, the arching of the blade tensioning 10 beneath said board, and a blade tensioning mem
ber ?xed on the lower surfaces of said lower
member 30 provides a smooth dropping board
?anges and slidingly engaging the lower surface
contacting surface which will permit sliding
movement of the blades 12 and I4 while at the ' of the board.
3. A dropping board scraper comprising an
same time ?rmly holding the upper surface of
oppositely shiftable V-shaped blade structure
the board l0 against the keen edges 21 and 29 of
‘having the divergent edges thereof slidingly en
the blades l2 and Hi.
gaging the upper surface of the board, a vertically
The blade structure H is adapted to-be .moved
disposed oppositely shiftable carrier means for
lengthwise of the board [0 by means of a draft
and ?xed to the ends of said structure, said means
device 35 which is secured to one end of each‘of
the slide members l6 and I1, and a second draft 20 depending below said structure and the dropping
board, and a blade tensioning means ?xed rela
device 36 issecured to the opposite ends of these
tive to the lower portion of said carrier means
slide members [6 and ll‘. The draft device 35
and slidingly engaging ‘the under surface of the
is formed of a ?exible member such as a wire
board to thereby holdsaid blade structure in con
strand which is secured at the opposite ends
thereof in openings 31 and 33 formed in the 25 tact with said board, said blade tensioning means
formed of a transversely arched member disposed
bights l3 and I9, and the ?exible member 35 is
with the convex surface thereof slidingly engag
provided with an eye or loop 39 which is formed
ing the under surface of the board.
by twisting the central portion of the ?exible
4. A dropping board scraper comprising a V
member 35.
The draft member 36 is formed of a single 30 shaped blade structure disposed in inverted posi
tion with the divergent portion thereof slidingly
strand of wire having the opposite ends thereof
engaging the upper surface of the board, a pair
secured in openings 40 and 4| formed in the
of end members fixed to the opposite ends of said
bights l8 and I9 at the ends thereof opposite
blade structure and engaging theopposite longi-.
from theopenings 3'! and 3,8, and a loop or eye 42
is formed in the central portion of the draft 35 tudinal edges of said board, a lower ?ange carried
by each of said end members, and an elongated
member 35.
blade tensioning member having its ends ?xed to
In the useand operation of this scraper device,
said ?anges .and including a transversely arched
the dropping board Ill is inserted between the
portion slidably engaging the under surface .of
blades l2 and I4 and the blade tensioning mem
said board.
ber 30. When it is desired to scrape the upper
5. A dropping board scraper comprising a pair
surface of the board 19, the scraper structure H
of scraper blades disposed in downwardly diver
is moved lengthwise of the board Ill by pulling
on a selected draft device, and in the movement
gent relation, end ?anges carried by said blades,
upper surface of the board In while at the same
wardly projecting ?ange carried by said end
a pair of end members ?xed to said end ?anges
of the scraper structure II, the blade tensioning
member 30 will yieldably and ?rmly hold the 45 and projecting at‘right angles from said blades
to thereby form a movable hopper, an upper in
blades l2 and M in sliding engagement with the
members, a lower inwardly projecting ?ange car
time, correcting any irregularities in the contour
ried by said end members, and an elongated blade
of the board It) due to warping, bending orother
50 tensioning member ?xed to said lower ?anges and
circumstances.
slidingly engaging the under surface of the board,
With a scraper structure of this kind, the sur
said blade tensioning member including a trans
face of the dropping board I0 will be thoroughly
versely arched portion engageable with the under
cleaned with each movement of the scraper struc
surface of the board to thereby hold said blades
ture ll lengthwise of the board. In addition, in
in sliding contact with the board.
view of the fact that the slide members I6 and l’!
6. In a combined dropping board scraper and
extend considerably beyond the scraping edges of
hopper, an upstanding structure for disposing in
the two blades 52 and [4, these slide members 16
overlapping relation with respect to and opposite
and I‘! will form ahopper with the blades 12 and
ly slidable relative to the dropping board, said
ill so as to retain the loosened droppings in front
of the blades and between the bights l8 and 19 of 60 structure including a pair of scraping blades dis
posed in downwardly divergent position over and
the slide members l6 and IT, respectively. In
for engaging said board, a pair of oppositely dis
addition, the ?anges 23 and 24 on the upper edges
posed upstanding blade carrying members ?xed
of the blades l2 and I4 together with the ?anges
to the ends of and extending at right angles to
22 and 25 .of the slide members l6 and I ‘l, coast
the blades, said members having upper ?anges
with the vertical parts IB and I9 informing the
overlapping the tops of the blades and lower
hopper forwardly of the scraper blades I2 and i4.
?anges disposed below the lower face of the board,
What I claim is:
means ?xed to said members and disposed on said
1. A dropping board scraper comprising a blade
lower ?anges for maintaining the blades against
structure, a pair of vertically disposed oppositely
the upper surface of the board, and oppositely ex
extending simultaneously shiftable end members
tending traction means for said structure and
?xed to the ends of said blade structure and ex
secured to the ends of said members.
tending forwardly and rearwardly ‘therefrom to
7. In a combined dropping board scraper and
thereby form a hopper on opposite sides of said
blade structure, said members depending below _ hopper, an upstanding structure for disposing in
overlapping relation with respect. to and oppo
said structure and the dropping board, and a
3
2,264,939
sitely slidable relative to the dropping board,
structure including a pair of scraping blades dis
said structure including a pair of scraping blades
posed in downwardly divergent position over and
disposed in downwardly divergent position over
for engaging said board, a pair of oppositely dis
and for engaging said board, a pair of oppositely
posed upstanding blade carrying members ?xed
disposed upstanding blade carrying members ?xed 5 ‘to the ends of and extending at right angles to
to the ends of and extending at right angles to
the blades, said members having upper ?anges
the blades, said members having upper ?anges
overlapping the tops of the blades and lower
overlapping the tops of the blades and lower
?anges disposed below the lower face of the
?anges disposed below the lower face of the
board, means fixed to said members and disposed
board, means ?xed to said members and disposed 10 on said lower ?anges for maintaining the blades
on said lower ?anges for maintaining the blades
against the upper surface of the board, and oppo
against the upper surface of the board, and oppo
sitely extending traction means for said structure
sitely extending traction means for said structure
and secured to the ends of said members, each of
and secured to the ends of said members, each of
said blades coacting with a portion of each of
said blades coacting with a portion of each of 15 said members to form a horizontal hopper open
said members to form a horizontal hopper open
at its outer end.
8. In a combined dropping board scraper and
at its outer end, each of said blades including a
?ange at its upper edge coacting with the upper
?anges of said members in retaining the material
hopper, an upstanding structure for disposing in
in said hoppers.
overlapping relation with respect to and oppo 20
sitely slidable relative to the dropping board, said
LUTY HAWKINS.
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