Патент USA US2111117код для вставки
March 15, 1938. ' <;_ D, LAKE PERFORATED RECORD CONTROLLED MACHINE Filed March 20, 1934 11 \ 2,111,117 2,111,111 Patented Mar. 15, 1938 UNITED STATES ‘PATENT orncs 2,111,117 PEBFORATED RECORD CONTROLLED MACHINE Clair D. Lake, Binghamton, N. Y., asslgnor to-ln tanaticnal Business Machines Corporation, New York, N. Y., a corporation of New York Application March 20; 1934, Serial No. 716,465 40laims. (Cl. 200-46) This invention relates to analyzing devices for pushed over toward one side by the grooves in perforated record controlled machines, such as, the surface of the roller. The strands then ride record sorting and tabulating machines. More over the raised portion between the grooves as particularly, it relates to machines of this nature shown at 4a in Fig. 4, and drop into the next where the records are analysed by electric brushes while the records are in motion. ' 5 Another object is to decrease failure of the sensing brushes to close a circuit through the perforations in the records. in the card in Fig. 5., parts. 1 Another object is to produce an analyzing or " sensing device adapted to overcome the eil’ects of dust particles which may tend to prevent the strands of the sensing brush from contacting with the cooperating conductor. ~ Fig. l is a sectional side elevation of a portion of a machine adapted to analyse perforated records while the records are in motion; Fig. 2 is a fragmentary enlarged detail show ing a sensing brush and a metallic roller adapted to cooperate with the brush for closing an elec tric circuit; ‘ Fig. 3 is a fragmentary sectional detail, on a - 'much larger scale, of the contacting roller; ' Fig. 4 is a sectional detail taken on line 4—4 of Fig. 2; » In Fig. 3 the grooves 9 are shown as rounded. This will permit the individual wires of the brushes to ride gradually up and down the sides of the grooves without losing contact, although this specific shape of groove is not essential. While the grooves are shown as running con Referring to the drawing: ‘ 11g. 5 is a'detail similar to Fig. 2, slightly . - In Figs. 2 and 4, the brushes are shown as made up of closely placed strands of wire. In Fig. 5 the spacing between the several strands is ex aggerated and onlya few of the wires are shown in order to show. the action of the individual wires. Also, while the long narrow perforation is shown in Fig. 2, a round perforation is shown One of the objects of the invention is to im prove upon analyzing or sensing devices of this nature by reducing the burning of the contacting 10 adjacent groove. modified. stantly in one direction, they might be made to cross each other so that the separate wires of the sensing brushes would tend to be separated in both directions. Also other forms of irregulari ties may be provided on the surface of the roller to cause agitation of the brush wires. ' In existing machines, where a roller having a smooth surface is employed, to cooperate with the sensing brushes 4, the several strands of wire in the brushes tend to follow the same paths repeatedly around the roller. Thus, when spark ing tends to take place between the brushes and the roller, burning of the roller occurs along In the drawing, the record cards I are adapted to be fed one at a time by a card picker 2 to feed . rollers 3 which carry the card. downwardly, be fixed lines. and the wires of the brushes follow these lines. Due to the tendency to crystallize tween the sensing brushes 4 on one side of the card, and a cooperating roller 5 on the other side. The train of gears i which serve to operate the card feeding mechanism also drives a gear 1 40 which meshes with a gear I attached to the con contacting surfaces are reduced so that the full power of current does not always pass for the full counterclockwise direction as viewed in Figs. wires in the brushes, prevents the burning of fixed lines around the roller and obviates the tendency of vthe wires of the brushes. to follow _ - along such lines, the conducting properties of the 3; ‘ duration of contact through the perforation in the card, and the accuracy of the operation of the machine is hampered. With the contact tact roller 5 to cause the latter to turn in‘ a ' roller disclosed here, the constant shifting of the 1 and 4. . - As shown in Fig. 2, the contacting surface of the roller 5 is provided with grooves 9 out diagonally around the face of the roller, as in the case of screw threads. As the card i feeds down wardly, the brush 4 is held out of contact with the roller 5 until a perforation ll, through the 50 card, passes between the brush and the roller. The brush then reaches through the perforation and engages the roller to close .an electric cir cu'it for controlling the machine. As the roller "is turningdownwardly,asviewedin Fig. 2, the 55 strands of wire which make up the brush are any such ?xed burned lines. ' In the operation of machines of this kind, small particles of dust including paper dust are dragged by the brushes along the surface ofthe card and then through the perforation onto the surface of the contact roller. Where the surface 50 of the roller is smooth the brushes tend to drag these particles around the surface of the roller. These particles tend to separate the brush wires from the roller and this in turn tends to draw va spark. Also the dust particles which have 55 2 2,111,117 lifted the wires off the roller to produce the spark are burned by the spark. This tends to cause fusing of foreign substance in the surface of the roller and impairs the conductivity of the roller. The agitation of the brush wires produced by the grooves or irregularities in the surface of the roller, cause the dust particles to be thrown off, and this reduces sparking and burning on the surface of the roller. In tests, it has been found that where my improved roller is used, a much larger number of cards may be run through the machine before evidence of burning is apparent, than where smooth rollers are used. While there has been shown and described and pointed out the fundamental novel features of the invention as applied to a single modi?cation, it will be understood that various omissions and substitutions and changes in the form and de tails of the device illustrated and in its opera tion may be made by those skilled in the art with out departing from the spirit of the invention. It is the intention, therefore, to be limited only as indicated by the scope of the following claims. 25 What is claimed is: 1. In a record analyzing device, a perforation sensing brush comprising a plurality of in dividual conducting strands, a roller adapted to cooperate with said brush, said roller having an irregular surface adapted to cause agitation of the sensing brush thereby displacing the said strands relatively to each other. 2. In a perforated record analyzing device, a stranded wire brush adapted to reach through perforations in a record, a rotatable roller adapt ed to be engaged by such brush when it reaches through a perforation, said roller being provided with diagonal grooves around its surface for causing relative lateral movement of the in 10 dividual strands of the brush. 3. In a device of the class described, a rotatable contact roller, an electric contact brush compris ing a plurality of individual conducting strands adapted to reach through perforations in a pass 15 ing record to engage said roller, and means for causing lateral movement of the brush with re spect to the roller to cause the brush to follow an irregular course around the surface of the roller thereby effecting displacement of the said 20 strands with respect to each other. 4. In a record analyzing device, a sensing brush comprising a plurality of strands of wire, a mov able contact element cooperating with said brush, and means disposed on said contact element to provide predetermined movements of the said strands with respect to each other. ‘ CLAIR D. LAKE.