Патент USA US2264939код для вставки
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.