Патент USA US2410131код для вставки
Oct. 29, 1946. 2,410,131 R. SARDESON a?- AL FILM HOLDING DEVICE Filed July 22, 1942 2, Sheets-Sheet I Inventors ROBERT SARBESO" ED Bf 4% Patented Oct. 29,“ 1946 2,410,131 UNITED STATES PATENT OFFICE 2,410,131 FILM HOLDING DEVICE Robert Sardeson and Edward H. Savela, Minne apolis, Minn., assignors to Pako Corporation, Minneapolis, Minn., a corporation of Delaware Application July 22, 1942, Serial N0. 451,940 6 Claims. (Cl. 95-100) 1 2 This invention relates to a device for holding photographic ?lms. It is customary to hold these ?lms in substantially vertical position while they said portion but cannot be moved past said shoulder over said pointed member. It is also an object of the invention to provide are being processed. a ?lm holding device comprising a pair of re It is desirable to have~a ?lm holder on which the ?lms can be very eas- ‘ ily and quickly placed, and one which will se curely hold the ?lm. It is also desirable to have some tension in a vertical direction on the ?lm siliently opposed plate-like members, one of which has projecting therefrom and toward the other member a ?lm holding means such as set forth in the above paragraph the other of said members having an apertured portion into which to hold it properly in position and to have some provision whereby the ?lm, if of considerable 10 said pointed portion is receivable, said apertured width, can expand laterally. It is of great im portion having in the rear thereof a plate adapted portance that the ?lm holder have a minimum of to be engaged by the ?nger of the operator Where contact surface for the ?lm. This means that ‘by said members may be moved toward each there will be less ?uid adhering to the holder other to force a ?lm onto said pointed member. and ?lm when it is transferred from one liquid 15 These and other objects and advantages of the to another and it also means that there is less invention will be fully set forth in the following moisture carried to be evaporated so that the description made in connection with the accom drying operation is more rapid. panying drawings in which like reference char It is an object of this invention to provide a acters refer to similar parts throughout the sev simple and e?icient ?lm holding device having a 20 eral views and in which: ?lm holding means on which the ?lm can be very Fig. 1 is a view in front elevation of a ?lm ho1d— easily and quickly placed and on which it is very securely held. It is another object of the invention to pro ing device; vide a ?lm holding device comprising a top mem ber having ?lm holding means, and a bottom tion indicating that the ?lm 22 is in an expanded Fig. 2 is a partial view similar to Fig. 1 shown on an enlarged scale, with arms I‘! in a posi condition; member capable of vertical movement having ?lm holding means, said film holding means be Fig. 3 is a vertical section taken on line 3--3 of Fig. 5 as indicated by the arrow; ing swingable about horizontal axes whereby a Fig. 4 is a vertical section taken on line 4—4 ?lm held in said device will be tensioned vertically 30 of Fig. 3 as indicated by the arrows turned through by said bottom member and can expand laterally due to the swinging movement of said ?lm hold ing means and be tensioned laterally by said bot tom member. 90 degrees; Fig. 5 is a horizontal section taken on line 5—5 of Fig. 2 as indicated by the arrows; Fig. 6 is a horizontal section taken on line 6-6 It is a further object of the invention to pro 35 of Fig. 2 as indicated by the arrows; vide a ?lm holding device having a bar at its Fig. 7 is a view in front elevation of a modi?ed top by means of which it can be suspended on form of holding device; horizontal supports, the same also having verti Fig. 8 is a ‘vertical section taken on line 8--8 cal parallel guide members, a ?xed top member of Fig. 7 as indicated by the arrows; extending between said guide members and pro 40 Fig. 9 is a vertical section taken on line 9-9 vided with a plurality of pairs of ?lm holding of Fig. 7 as indicated by the arrows; means, a bottom member extending between and Fig. 10 is a view in front elevation of another movable on said guide members also having modi?ed holding device; ‘ thereon a plurality of pairs of ?lm holding means Fig. 11 is a vertical section taken on line I I-—-I l vertically aligned respectively with the said pairs 45 of Fig. 10 as indicated by the arrows; and on said top member. , Fig. 12 is a vertical section taken on line l2—l2 It is more speci?cally an object of the inven of Fig. 10 as indicated by the arrows. tion to provide a means for holding a ?lm com Referring to the drawings, particularly Figs. prising a pointed member in the shape of a 1 to 6,‘ a ?lm holding device is shown comprising triangle in central longitudinal section, the same 50 a frame I5. While this frame might be variously having a portion of reduced diameter, the sides constructed, in the embodiment of the invention of which make substantially a right angle with illustrated it is shown as made from a cylindrical the bottom of said triangle, said bottom forming rod bent into ‘substantial U-shape forming a bot a shoulder whereby a ?lm can be pushed over tom horizontal portionv [5a and vertical spaced said pointed member into position surrounding 55 parallel portions 15b. Portions l5b diverge at 2,410,131 3 4 their upper ends and are bent to form horizon quite freely on said guide members so that it can tally extending terminal portions |5c adapted to move downward some distance more at one side rest upon spaced horizontal supports. A top member I6 is provided formed of a ?at strip, the than the other. This will thus tension the ?lm even though the pointed members 2| are not the same distance from the edge thereof. When the ?lm is placed on arms I‘! they will be swung to same being bent around the members l5?) and secured thereto in any suitable manner as by spot welding. Member I6 also has a horizontal ?ange |6a extending forwardly therefrom and extending almost all the distance between the incline inwardly away from members or por tions |5b as shown in Fig. 1. A ?lm of con siderable width when wet, expands laterally ap ends thereof. Arms I‘! are provided and these are 10 preciably. This laterally expanding movement can be accommodated by arms I‘! swinging about pivoted to member l6 adjacent its ends, said their pivots toward side portions iiib. The ?lm arms being supported on studs or pivots |B se is also tensioned laterally appreciably by the cured in member IS in any suitable manner as by horizontal component of the force exerted on the riveting. Pivots l8 are provided with peripheral grooves forming a reduced portion therein and 15 ?lm by the weight of the lower member 20. In Figs. '7 to 9 another form of holding device is arms H are provided with open ended slots Ila shown. This comprises a frame formed of a bar extending at an angle thereinto so as to be en 25 and while this may be made of various ma gaged over said reduced portions. Arms II are terials and various shapes, in the embodiment of of increased width at their ends adjacent flange the invention illustrated, it is shown as a wooden Ilia and are provided with end surfaces |'|b ex bar substantially square in transverse cross sec tending at an obtuse angle to each other and tion. Member 25 has secured thereto cam plates adapted to engage the bottom of ?ange IGa. to 26 of substantially triangular shape having limit the swinging movement of arms |'|. Sur rounded corners which function when the device faces l‘lb are connected by a surface concentric is moved through a processing machine such as with the surface of pivot IS. A bottom member 20 is provided similar to member I6, the same having its ends bent around vertical portions 150 and constructed and arranged to be slidable shown in the prior patent of Glen M. Dye No. on it is only necessary to press the same against are identical with portions 2 | , 2 l a and 2|b already described. Portions 3ilc are also provided with 1,863,689. A member 21 formed of a cylindrical rod is provided and bent into substantial U-shape, the same thus- having a bottom portion 21a thereon. Member 20 also has a forwardly pro jecting horizontal flange 20a. Arms l? are also 30 which inclines downwardly slightly toward the center and vertical side portions 21b which are pivoted to member 2|) adjacent its ends, which threaded at their upper terminal ends and pass arms are identical with arms I‘! already described. through bar 25. Portions 2112 are equipped with Each of the arms I1 is provided with a ?lm hold nuts 28 and washers 29 at each side of bar 25 and ing means and this comprises a pointed mere are thus held securely therein. A top member her 2| having the shape of a triangle in longi 36 is provided extending between portions 211), tudinal central section and preferably of conical the same having its ends bent around said por shape. Member 2| has in the rear thereof, and tions and secured thereto in any suitable manner is carried by, a reduced portion 2 lot of member i. as by spot welding. Member 30 is shown as of The sides of portion 2|a make substantially a plate-like form, the same having a strengthening right angle with the bottom of the cone or tri rib 30a formed therein and having spaced de angle above referred to so that said bottom pending flat portions 302) disposed in vertical forms a ?at shoulder. Portion 2 Ia is carried by a planes. The central portion 39b is shown as of portion 2|?) of much greater transverse dimen less width than the side portions 3% and mem sion having a ?at surface substantially parallel with the bottom of member 2|. 45 ber 33 also has adjacent its ends the flat portions 300 extending downwardly the same distance as In operation frame IE will, as stated, be sup portions 30b. The portions 3% are provided ad— ported upon a rack having horizontally extending jacent their lower corners with ?lm holding supporting members engaged by portions |5c. A means comprising a pointed member 3|, a re ?lm shown as 22 will be supported upon the ?lm duced portion 3la and a larger portion 3 lb which holding means and in order to place a ?lm there pointed members 2|. When the ?lm is pressed against member 2| said member punctures the ?lm and passes therethrough, the ?lm passing onto and surrounding portion 2|a. The ?lm is j film holding means comprising portions 3|, 3|a and SH). A bottom member 33 is provided similar in form to member 30, but in inverted position relative thereto. Said portion 33 has its ends now firmly and securely held on portion 2 la and bent around vertical portions 211) and these end it cannot be removed therefrom past the portions are constructed and arranged to slide shoulder or bottom of member 2| without further freely on portions 2727. Member 33 has a rupture. In practice when it is desired to remove strengthening rib 33a and has the upwardly ex the film it is given a slight jerk tearing the hole tending spaced portions 33?) which are disposed therein out through the edge. If it be attempted in vertical planes and are vertically aligned re to remove the ?lm the edge thereof about the spectively with portions 301). Member 33 also has puncture ?attens or“ moves approximately into the portions 33c similar to and vertically aligned one plane exerting a gripping action upon the re with portions 300. Member 30 between each por duced portion 2|a. This increases the dif?culty tion 300 and the adjacent portion 30b and be of removing the ?lm past the shoulder and over the pointed portion. The ?lm is rather soft when tween portions 302) is provided with a depending wet and is quite slippery. The flat shoulder on flange 30d projecting at an angle of substantially the pointed portion is important in preventing 45 degrees, the same being shown as projecting the ?lm from moving off of the pointed member 70 forwardly. Similar ?anges 3311 are formed on in the processing operations. With the ?lm sup member 33 and these are shown projecting up ported as shown, it will be tensioned vertically by wardly substantially at an angle of 45 degrees, member 20 which can slide down on portions I519. the same being vertically aligned with flanges The side portions |5b form guide members for the 30d. Portions 33b and 330 are also provided with lower member 20. The bottom member slides 75 the film holding means 3| having the portions 2,471 0,131 5 6 did and 3 lb and these are vertically aligned with tions Ma. The pointed portions 4|. enter poi’ the corresponding ?lm holding means on ‘top , tions We through the apertures 40]‘. .The' operator can’ thus-have his’ ?nger or thumbover portion member3ll.‘ ‘i > ~» I ~- - - r Y The‘ holder‘ just described has four-pairs of vertically aligned ?lm holding means and‘each' pair can be used to hold a narrow ?lm 35" as ‘shown 4022b without‘ any danger of being pricked by the sharp end of portion 4|. Portion 4lleicould be of suf?cient depth to protect. the ?nger or thumb of the operator fromipointed member 4|. Por tion '40i forms'a stop for the edge of the ?lm in Fig. 7. The‘ ?lms will be tensioned' vertically» by the weight of memberl33 which as stated, can and prevents the same from being inserted .too slide freely on guide‘members 27b. .The bottom of member 33 slopes toward a central'point and 10' far upwardly in the holder. Member 40 ‘can be supported on a rod or other member extending Water or other liquid will readily'run down to the through ‘the .bight at ‘the top thereof. Member central point and drip off. This gives ‘better 4|! can also be supported by a rod passing under drainage‘. than if the bottom were" horizontal. the bentlends of lugs 407‘ and 40g and through The?anges 30d tend to direct any water-which slot 40k. Lug 40a‘v will be sprung somewhat and might’be thereon away from the surface of the ?lms35 so that thesame would drip freely away from the?lm. The flanges 33d give a stabilizing action or effect when the carrier ismoved down wardly in a liquid to'submerge the ?lms. The member 40 willbe ?rmly held in position.’ I From the above description it will be seen that we have provided a very simple and e?icient ?lm holdingmeans and one on which the ?lm can ?anges 38d also protect the ?lm from anything 20 be very quickly and easily placed and‘ on which it will be" very securely held. It is impossible to dropping from above. ‘Both the flanges 30d and remove the ?lm from reduced portions 2|a, 3|a 33d support the carrier when it is laid ?at on a and 4| a without further rupturing the same, .The surface so that the pointed members 3| or the ?lm is ?rmly held even though the gelatinous ?lms do not come in contact with the surface. It will be noted that it is possibleto use the same 25 surface is wet and slippery. When the ?lm is type of member for bottom member 33 as fortop member 30. The flanges 36d and 33d have dis wet and the pins 2|, 3| and 4| are wet thev?lm might slip off ‘the. pins but for the shoulders tinct functions on both members. formed by reduced portions 2|a, 3|a and 4|a. ,_ ' In Figs. 10 to 12 another form of. ?lm "holding device is shown. This is formed of a plate/40 bent substantially at its center substantially 180 It is pointed out that there is an extremely small ?lm contacting surface on portions 2|a, 3|a and Ma which are the parts contacted by the ?lm. degrees, thus forming opposed portions 40a and This means that less water or ‘moisture will be retained on the holder or the adjacent part of 401). A slot 400 is formed in the plate and ex the ?lm and that there is less moisture to evap tends quite a distance in portion 40b. Portion 40a is of increased width at its lower end hav 35 orate so that the drying operation will be facili ing projecting portions 40d shown as having tated and speeded up. The ?lm holders embody ing the invention are quite simple in construc rounded ends and each is provided on its side tion, are easily made and are highly e?icient in adjacent member 4017 with a ?lm holding means use. The ?lms are properly supported under the 4| having a reduced portion Ma and a portion of greater transverse dimension 4|b. This hold 40 desired tension and provision is made for lateral or horizontal expansion. With narrow ?lms such ing means is similar in all respects to ?lm holding as shown in Fig. 7, the lateral expansion is not means 2| having the portions 2|a and 2|b al ready described. Portio'n 402) has pressed upward ly therefrom portions 40c illustrated as of sub stantially cylindrical form, the same each having an aperture 40]‘ at its center through which por tions 4| are adapted to pass when portions 40a and 40b are pressed toward each other. The su?icient to require any particular provision therefor. All of the devices illustrated have been amply demonstrated in actual practice, found to be very successful and e?icient and are being commercially made. It will of course be understood that various changes may be made in the form, details, ar bers 40a and 4% can be pressed together and 50 rangement and proportions of the parts without departing from the scope of applicants’ inven they will assume their normal spaced relation tion, which generally stated, consists in a device ship when released. The lower end 40)‘ of por capable of carrying out the objects above set tion 40b has parts 4019b reversely bent upwardly to lie parallel to the main part of portion 40b forth, in the parts and combinations of parts dis and to overlie the open end of bosses or projec 55 closed and de?ned in the appended claims, What is claimed is: tions 40c. Portion 40a is provided with a struck 1. A ?lm holding device having in combination, up lug 40g having its end extending parallel to a frame comprising spaced parallel vertical the outer side of portion 40a and the lower end guides, a top member extending ‘between and of portion 40a is bent outwardly to form a ?ange 40h parallel with a slot 40k extending parallel to 60 secured thereto, arms pivoted to said member adjacent said guides swingable about horizontal the surface of side portion 40a. Portion 4%!) has axes, a bottom member extending between and a narrow lug 4G1‘ bent at right angles thereto and vertically slidable on said guides, arms pivoted the same extends along the side of portion 40a. to said bottom member adjacent said guides and It will be seen that the portion 40a also has struck 65 freely swingable about horizontal axes, ?lm hold up therefrom a small lug 407'. ing means carried by said arms adjacent the free In operation when it is desired to hold a ?lm ends thereof whereby a ?lm can be supported on on member 4|! the ?lm will be placed with its said means extending therebetween and is held top portion between member 4| and portion 40a under vertical tension by said bottom member and the operator can then press sides 40a and 40b together with his thumb and ?nger, the thumb 70 and can expand laterally and be laterally ten sioned by the swinging movement of said arms. or ?nger engaging the outer sides of portion 40a 2. A ?lm holding device having in combination, and the part 4017b. The portions 4| will thus be a frame comprising spaced parallel vertical pressed through the ?lm and the top of portions guides, a top ?lm holder extending between said 408 will press the ?lm over portions 4| so that it will be positioned surrounding the reduced por 75 guides having at each side thereof laterally material of member 40 is resilient so that mem 2,410,131 swingable ?lm holding means, a bottom ?lm hold ing member extending between and slidable on said guides having at each side laterally and free ly swingable ?lm holding means whereby a ?lm 8 bers, said arms having pointed pins thereon spaced from their pivots, said pins having reduced portions forming ?at shoulders thereon, said arms being adapted to swing to an angular position may be supported on said means and will be 5 coincident with the attaching of a ?lm to said pins so that the weight of the slidable second member exerts a tensioning effect in a vertical direction and said weightdue to the horizontal movement of said ?lm holding means due to component of movement of said arms also exerts the weight of said bottom ?lm holding member. a tensioning effect in lateral directions. 3. The structure set forth in claim 2 and means 6. A ?lm holding device having in combina tensioned vertically by said bottom member and can expand laterally and be tensioned laterally by the horizontal component of the swinging for limiting the swinging movement of said ?lm tion, a frame comprising spaced parallel verti cal guides, a top member extending between and 4. A ?lm holding device having in combination, secured thereto, arms pivoted to said member a frame comprising spaced vertical guides, a 15 adjacent said guides swingable about horizontal top member extending between and secured there axes, a bottom member extending between and to, a second member of appreciable weight posi vertically slidable on said guides, arms pivoted to tioned below the top member and vertically slid said bottom member adjacent said guides and able ‘on said guides, arms swingably pivoted to swingable about horizontal axes, ?lm holding said members, film holding means adjacent the 20 means carried by said arms adjacent the free holding means. free ends of the arms, said arms being adapted to swing to an angular position coincident with the attaching of a ?lm to the ?lm holding means ends thereof whereby a ?lm can be supported on said means extending therebetween and is held under vertical tension 'by said bottom mem so that the weight of the slidable second mem ber and can expand laterally by the swinging ber exerts a tensioning effect in both vertical and 25 movement of said arms, said arms having sur lateral directions. faces extending at an angle to each other and 5. A ?lm holding device having in combination, means on said members respectively engageable a frame comprising spaced vertical guides, a top by said surfaces for limiting the swinging move member extending between and secured thereto, ment of said arms. a second member of appreciable weight positioned 30 below the top member and vertically slidable on said guides, arms swingably pivoted to said mem ROBERT SARDESON. EDWARD H. SAVELA.