Патент USA US2116823код для вставки
May 10, 1938. J, BLEwET-r ‘2,116,823 CLOSURE FOR COTTON GIN ROLL BOXES Filed Sept. 16, 1935 ‘ 2 Sheets-Sheet l May 10, J’ BLEWETT ' 2,116,823 CLOSURE FOR COTTON GIN ROLL BOXES‘ Filed Sept. 16, 1955 Z7 Z4 Z5 / l7 /5 [la 27’ 2 Sheets-Sheet 2 Patented May 10,‘ 1938 2,116,823 UNITED'STATES PATENT ‘ OFFICE , ‘ ‘ v John Blewett, Dallas, Tex.,‘assiznor to The Mur ray Company, Dallas, Tex, a corporation of Texas Application September 16, ‘1935,‘Serial No. 40.703‘ ‘ _ 'lClaimsh (CL 19-55)‘ ‘ ‘ ‘ which an e‘xam‘ple‘of “the ‘invention is shown, This invention relates to new and‘ useful im 1 provements in closures ‘for cotton gin‘ roll boxes. - One object of the‘ invention is to provide an‘ improved closure for the roll box of a cotton sin 5 which is arranged to permit ready access to the interior of the‘ box when it is necessary‘ to clean and wherein: . ‘ , ‘ 1 ‘Figure 1 is a, ‘transverse, vertical sectional view of a cotton ‘gin, having a‘closure constructed in accordance with the‘ invention, closing‘ its roll 5 box, , , , ‘ 1 ‘Figure 2 is a longitudinal, vertical sectional An important object of the invention isto pro vide an improved closure for the‘front of the ‘roll l0 box of a cotton gin which is arranged to be hinged at either its upper or lower end whereby it may be swung either from its upper or lower end, and also being so constructed that“; may be‘ completely removed to open the entire front of view, taken on the line 2-2 of Figure l, ‘ Figure-3151s an isometric view of one end of the the ginning ribs,‘ or for any other reason.‘ , the roll box. , x closure,“ ‘ ‘ , ‘ ‘ , “ “ ‘ y 10 Figure 4 is an enlargeddetail view of (‘meet the retractible pins and its, mounting, , “Figure? ‘is an isometricvview of one of the pins, and" “ Figure 6 is a ‘transverse, vertical sectional, view ‘ ‘ Still another‘object of .‘the invention is to‘ pro of the closure ‘showing the same swung ‘downm ‘vide an improved closurefor the frontoi a roll‘ ‘ \va‘r‘dly, the other positions of said ‘closure being box which is supported by retractible pins at its show‘nin dotted lines. ‘ ‘ r ‘ upper andlower ends, whereby whenthe upper ‘ , ‘In‘th‘e drawings, the numeral l0 designates an pins are retracted‘ the closure may be swung ordinary cotton "gin which may be of the usual 20 downwardly with the lower pins‘as a pivot, and ‘ when the lower pins are retracted, said closure maybe swung upwardly, the upper pins serving‘ as a pivot, the location of the pins being such'that‘ 25 a single operator can operate the closure; the retraction of both upper and lower pins permit-l Still another object of the invention is to pro vide a swinging closure forlthe front of a roll 30 box which is constructed so that when opened the roll within the box may be retained, the hinge ‘ of said closure beingsuch “that the seed‘ within the box can not enter beneath the open closure‘ to prevent complete closing ofwthe“ same. ‘ , 35 C A further object‘of the ‘invention 'is to pro-j vide an improved closure for‘ the rollgbox of a cotton‘ gin having retractible‘ means ‘for holding the ‘same in a closed position, said retractible means being arranged‘ to engage the ‘gin frame, 40 when the lower end of the closure has be‘en‘swung to an open position, said means thereby holding said closure in such open position.“ ' c l3 a‘nd‘huller ribs“ II.‘ The roll box A is formed ~ above the ginning saws and ribs in the usual way. ‘ Theifront of the gin breast II is removable‘ and is generally‘known‘as the ‘outer front, ‘ ‘The ‘ front’oi the roll‘box is usually closed'by an in-‘ .‘ ‘ ting the entire closure to be readily removed. ' construction‘. The‘ gin has the usual outer‘ piv-‘ oted gin breast ll‘, ginning saw‘s l2, ginning ribs ner fron't'which‘ is‘ removable also so as to permit access toth‘e interior of the roll box. ‘ ‘ The removal of ‘the outer and inner fronts en- , tailsconsiderable time in loosening bolts and nuts to‘permlt such‘remov‘al. Many times, it is only necessary to reach within the roll box to remedy theparticular trouble and therefore, the necessity of ‘the removal‘ of ‘the inner front“ results in a waste of time. , ‘ i‘ ' In ‘carrying outv the invention,‘ the usual front which‘closes. the roll box A is eliminated, and a‘ curvedrlclosure I5 is provided. This ‘closurexex tends transversely within the gin breast between the side walls“ l6 thereof, and, as clearly shown‘ in Figures 2 and 3, is ‘formed‘of a pair‘ of curved, , ‘ ‘ c ?anged end members I1, which are‘ constructed ‘ of metal or other ‘suitable material. The‘ ‘end mounted on retractible ‘pins engaging the‘ gin" members are“ preferably cast but ‘may be con A still further object of the invention is to pro-, vide an improved closure for‘ a roll box which‘ is 4 frame, whereby all bolts, nuts and other holding ‘ means which necessitate the use of tools are ‘elim ‘ ‘ A curved plate It extends between the members and has its upper and lower ends bent upon it self‘ to form elongated‘ channels l9 at the upper A construction designed to carry out the in-, and lower ends of said plate. “A complementary 50 inated. ‘ to structedvin‘ any desired way. , vention will be hereinafter described, together outer plate 20 is welded or otherwise‘secured to ‘ ‘with other features oi‘the invention.‘ the plate “and overlies the‘ same. As clearly \ , ‘ The invention will be more readily understood from a reading of the following speci?cation and 55 by reference to the accompanying drawings,‘ in shown in ‘Figure 3,‘ the“ outer plate serves to res tain the ends of the inner plate in their bent posi- ‘ tion. Both ;plates ‘are “ then secured to the end‘ 55 2 9,1 16,838 members ll by rivets, or-other means, whereby an elongated curved closure for the roll box A is formed. If desired, the outer Plate 22 may be bent upwardly to form a longitudinal rib 2| throughout its length,-whereby rigidity will be added to the structure. . For mounting the closure between the side walls iii of the gin breast ll, an elongated, tu bular casing 22 is inserted in the upper channel 10 19 of the sheet i8. The ends of the casing ter minate adjacent the side ?anges ll’ of the end members ll of the closure (Figure 2), and the casing is suitably fastened in the channel. It may have a tight fit and be driven therein. A plunger 23 is mounted at each end of the casing and is slidable therein. The outer end of each plunger is formed with a reduced pin 24, whereby an annular shoulder 25 is provided. The reduced pin extends from the end of the casing 20 and passes through an opening 28 (Figure 4) in the side ?ange ll’ of the end member II. The extreme outer end of said pin is arranged to en gage in an opening 21 formed in the side wall I‘ 15 of the gin breast. 25 " ' _ The pin is normally held in engagement with said opening, with the annular shoulder 28 about the inner side of the ?ange l'l' by a coiled spring 28 which is con?ned within the casing 22 between It will-be seen that the closure is mounted be tween the side walls of the gin breast to close the front 01' the roll box A. With the upper plungers 23 and the lower plunger 23' in their outer posi tions, the pins 24 and 24' engage their respective openings 21 and 21’ in the side walls l6. Assum ing the thumb bolts 30 and 30' to be engaged in the o?set notches, it will be seen that the closure is securely locked in position. In ginning wet cotton, or under other condi tions, the) girming ribs l3 may become clogged and it is necessary to reach within the roll box . A to clean said ribs. It is only necessary, after the outer front of the breast I I has been removed, for the operator to grasp the thumb bolts 22, one 15 in each hand, and retract the upper plunger 23 to disengage the pins 24 from the openings 2'I.~ The lower pins 24' are still in engagement with their respective openings, and the closure may then be swung to the position shown in dotted lines in Fig.1 and in full lines in Figure 6. It is noted that the pins 24' serve as the pivot on which said closure swings. The operator may then move the entire roll within the box A forwardly onto the inner side 01' the closure and the ginning ribs and saws are then readily accessible. When it is desired to close the closure, the upper end is swung inward the inner end of the plunger 23 and a transverse ' ly. Due to the curve of the inner side of said closure and also to the fact that the closure is it will be obvious that the springs exert their hinged on the pins, any seed which might have pressure to hold the plungers in their outer posi accumulated on the inner face of said closure tions (Figure 2) with the reduced pins 24 engag while the same was open, will fall from said clo ing in the openings 21 in the side walls 01' the gin sure as it moves to a closed position. It is noted 35 breast. The engagement of the annular shoulder ' that there is no possibility of the accumulated seed 36. 30 pin 29 which extends across said casing. _Thus, 25 of each plunger with inner side of the ?ange ll’ prevents the displacement or said plunger from the casing. It is noted that when thepins are within the openings 21, the upper ‘end 01' clo '40 sure is attached to the breast II. For locking the pins within the openings, each ‘plunger 23 is provided with a radially extending interfering with the closing by falling into the hinge, as is the case in some closures now in use. The curve of the closure positively guides the seed back into the roll box.‘ In some cases, it is desirable to swing the clo 40 sure upwardly completely out _of.the operator's‘ way so that the interior roll box is easily acces thumb bolt 30 which projects outwardly and is sible. In such cases the upper plungers 23 re slidable within a slot 3| (Figure 3) formed in the ‘ main in their outer position so that their‘ pins 24 outer side of the channel IS. The slot is provided with o?set notches 32 at each end thereof and the I bolt 30 is so located on the plunger. that when the. pin 24 is engaging in the opening" 21, said bolt is opposite the outer notch 32. A slight rotation of the plunger causes the bolt to enter said notch, and it will be seen that said plunger cannot be moved to disengage the pin from the opening 21 until such time as the thumb bolt ismoved from said outer notch. I . I When said bolt is disengaged from the outer notch, the plunger may then be slid inwardly under tension of the coiled spring 22, and after the pin 24 is retracted from the opening 27, the thumb bolt may be swung into the inner onset 60 notch 32, whereby the plunger may be locked in . a retracted position. From the above, it will be seen that the upper end of the closure is supported in the side walls of the gin breast II, by the retractible plungers -65 23. The lower end of said closure is supported by similar plungers 23' which are mounted in the ends 01' a casing 22' located within the. lower ' channel l9. These plungers are provided with reduced pins 24' which engage openings 21'. in 70 the sidewalls of the gin breast. The construc tion and operation oi! the lower plungers are ex actly the same as the upper pins and a detailed description would merely be repetition. Corre sponding parts of the lower plungers have been 75 given prime ,numbers. ~ ' remain within their respective opening 2] in the 45 side walls IS. The lower plungers 23' are re tracted so that their pins'24' are‘ disengaged vfrom the openings 21', so that the ‘closure may be swung upwardly as shown by dotted lines in Figure 6. If desired, after the lower end of the, closure has been swung above the top of the side walls It the plungers can be again moved outwardly’ so that the pins 24' rest upon the top edge oi! said side walls to prevent downward movement of the closure until such time as the plungers 23' are 55 again-retracted. It is noted that this action is automatic if the thumb bolts 30' are not engaged with the inner oifset notch 32' when‘ the plungers 23' are ?rst retracted to disengage the pins 24' from the openings 21', for it is obvious that dur ing the upward swinging, the outer edge of the 12111524’ will ride against the inner side or the. walls i6, being held so by the coiled springs 28'. As soon as the pins clear the upper end of said walls, said spring will immediately move them 65 outwardly. ' From the above, it will be seen that the closure ' may be either swung upwardly or downwardly depending on whether the upper or lower pins are retracted from their respective openings. If 70 the upper pins are retracted, the lower pins form the hinge, and vice versa. The disengagement oi’ the pins may be readily accomplished by one operator who can grasp one of the thumb bolts in each hand and swing the closure. Hereto 75 3 2,1 16,823 fore, the removal of the front of the roll box required at least two men. The swinging from either the top or bottom of the closure permits ready access to the interior of the roll box A for any purpose. _ . In some cases, it is desirable to entirely remove the closure, and when this is necessary, both sets of pins 24 and 24’ are retracted from the dinally between the end walls of the gin breast across the front of said roll box to close the same, a pair of spring-pressed plungers at the upper opposite corner portions of said closure member and extending outwardly from the ends thereof for engaging in openings in said end walls to support the upper end portions of the member, similar spring-pressed plungers at the lower corners of the member for engaging - openings and the entire closure may be removed. It is noted that the closure is fastened in place - openings in the walls of said gin breast to sup 10 by the retractible pins which may be easily op erated by hand. No nuts, bolts. or other'com paratively permanent means lsemployed. This port the lower end portions of the member, means on each plunger for retracting the same to dis eliminates the use of any kind of tools and saves a great deal of time and labor on the part of leasably retaining the plungers in their extended engage it from its opening, and means for re~ and retracted positions. ‘ 4. A closure for the roll box of a cotton gin It is noted that the particular structure of the ‘ including, a longitudinally extending member ar ranged to close the forward end of said box, closure is subject to variation and it is not nec separate retractible means for supporting the essary to make the closure of the end members upper opposite corner portions of said member, 20 20 and plates, but all these parts could, if desired, separate retractible means for supporting the ‘ be made integral. ,It is further pointed out that lower opposite corner portions of said member, the closure may be attached to any ordinary and means for releasably retaining said retracti cotton gin having the roll box A above the gin ble means in either their extended or retracted ning saws and ribs. nu positions. What I claim and desire to secure by Letters 5. A closure for the roll box of a cotton gin Patent is: 1. A closure for the roll box of a cotton gin including, a removable closure member extending the gin operator. including, a curved member extending longitu longitudinally between the end walls of the gin dinally across the front of'said roll box to close the same, retractible locking means resiliently breast across the front of said roll box to close the same, separate retractible means on said 30 biased toward their locking position carried by closure member engaging the walls of the gin breast for‘ pivotally supporting the upper end of the member, similar retractible means for piv otally supporting the lower opposite corner por tions of the member, whereby either ‘the upper the upper end of the member and engaging the walls of the ‘gin breast for pivotally supporting the upper end of the same, and similar retracti 35 ble locking means resiliently biased toward their locking position for pivotally supporting the or lower means may be retracted at will to per lower end of the member, and means independ mite the closure member to be swung either up wardly from its lower end or downwardly from its upper end, and means for releasably retain ently operable for retracting both the upper and lower retractible means. whereby the member 40 may be either swung downwardly from its upper ing said retractible means in either their ex end or swung upwardly from its‘ lower end, or may be entirely disengaged from the breast, the curve of the member being such that when the upper means has been retracted to permit down 45 ward swinging of the member, the seed within tended or retracted positions. 6. A closure for the roll box of a cotton gin including, a removable closure member extend the roll box is prevented from entering the hinge o! the member, whereby interference by. the seed with the closing of said member is eliminated. 2. A closure for the roll box of a cotton gin including, a curved member extending longitu dinally across the front of said roll box to close the same, retractible means carried by the upper end of the member and engaging the walls of 55 the gin breast for pivotally supporting the upper end of the same, and similar retractible means for pivotally supporting‘the lower end of the member, and means for retracting both the‘upper and lower retractible means, whereby the mem 60 ber may be either swung downwardly from its upper end or swung upwardly from its lower end, or may be entirely disengaged from the breast, the curve of the member being such that when the upper means has been retracted to 65 permit downward swinging of the member, the seed within the roll box is prevented from enter ing the hinge of the member, whereby interfer ence by the seed with the closing of said member is eliminated, the location of the lower retractible 70 means being such that when ‘the member is swung upwardly, said means will engage the upper edge of the side walls of the gin breast to hold said member in an open position. 3. A closure for the roll box of a cotton gin 75 including, a closure member extending longitu~ ing longitudinally between the opposite end walls of the gin breast across the box to close the same, and retractible independently operable locking means mounted on each end corner por tion of said closure member and resiliently pro jected into supporting engagement with the con tiguous end wall portions of the gin breast where 50 by to releasably lock said member in place and to hingedly support said member near either longitudinal side when the locking means near the opposite longitudinal side is retracted from engagement with the wall portions of the gin breast. ' 7. A closure for the roll box of a cotton gin including, a removable closure member extend ing longitudinally between the opposite end walls 60 of the gin breast across the box to close the same, and separate retractible ‘and independ ently operable bolts mounted on the opposite end corner portions of the closure member and being ‘spring-pressed and normally urged to project into openings provided therefor in the contigu ous breast end wall portions whereby said closure member is releasably locked in place to be re movable‘ as a unit, at will, and is hingedly sup ported at its opposite end corner portions at 70 either side when only the bolts at the other side are retracted from the openings in the contigu ous wall portions, and reversely when only the other bolts are retracted. JOHN BLEWETT.