US2138627A - Printing mechanism - Google Patents

Description

G. F. DALY Nov. 29, 193s.

PRINTING MECHANISM Filed Nov. 15, 1955 2 Shets-Sheefc l 7)vlam-0R ATTORNEY Nov. 29,71938. G. FjDALY PRINTING MEGHANISM Filed N0`V. l5, 1935 2 Sheets-Sheet 2 REGISTER, ADDRESS, FLOORI STORE GARD MTE,

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.nssaaaaaaa gy'e'rn ATTORNEY PatentedNov. 29, 1938 PRINTING MECHANISM George F. Daly, West Orange, N. J., asslgnor to International Business Machines Corporation, New York, N. Y., a corporation ot New vYork Application November 13, 1935, Serial No. 49,480

4 Claims.

utilizing one or more of the timed impulses to control printing mechanism. v

In certain classes of work where dates or the like are to be printed under control of record cards, it has been necessary toeiect perforations representing the dates to be printed, on the record cards. If these cards later are to be utilized in preparing other reports in which the perforated date is not desired. but someother date is required, it has been-necessary to re-perforate the cards in another eld with the new date, or, if space is not available on the card, to dispense with such printing. In accordance with the present invention, it is proposed to set aside a iield of all record cards from which dates are to be printed and in such field to arbitrarily punch a hole representi'ng I in the first column, 2 in the second column, 3 in the third column, and so on, up to 9, Thes fields as they feed through the machine are a alyzed and circuits potentially established by the holes in the card columns at times represented by the location of the perforations in the several columns. l

If, for example, it is desired to have the record card print a predetermined date, such as 6-29, representing June 29th, the columns containing the 6, 2, and 9 perforations are manually selected to complete circuits at such times to lenergize printing magnets which in turn position type bars to print 6-29'. If the same card is to be utilized in connection with some other report to print, for example, the number 15558, a further manual selection in the columns containing the I, 5, and 8 perforations is made to' cause these columns to control the positioning of the type bars to select` the number for printing. I In accordance with a modied form of the invention a commutator device is provided which is arranged to close circuits at successive times in the same manner as the series of periorations in the record cards, thus making the utilization of the separate punchedileld unnecessary.

Various other objects and' advantages of the (Cl. lol-93) invention will be obvious from the following particular description of one form of mechanism embodying the invention or from an inspection of the accompanying drawings; andthe invention also constitutes 'certain new and useful features 5 of construction and combination oi' parts hereinafter set forth and claimed.

In the drawings:

Fig. l represents the printing circuits of the tabulating machine involved in the operation of 10 the invention.x

Fig. 2 is a similar view showing the arrangement according to the modified form of the invention.

Fig. 3 is a representation of the printing -mecha- 16 nism.

Fig. 4 is a specimen of a fragment of a record' card having a eld perforated for carrying out the objects of the invention. y

The general arrangement of the machine is 20 substantially as disclosed in the patent to Daly and Page, No. 1,762,145, to which reference may be made 'for details of construction and operation of the parts of the machine with which the present invention is not specifically concerned. In 25 such machines, record cards, as in Fig. 4, are suc` cessively moved to pass a row of analyzing brushes so that theindex point positions 9, 8, 1, etc. are sensed by the brushes, in succession As the cards move Apast the brushes, printing type 30 bars I0 (Fig. 3) move upwardly to passprinting position opposite platen II as the card passes the brushes Aand the timing is such that the 9 type element I2 is at printing position as the 9" index point position is at the brushes and the other type 35 elements I2 will be at the printing position as the correspondingly numbered index point positions of the card are at the sensing brushes. As any position containing a perforation is sensed by the A brushes, a circuit will be completed to printing magnet I3 which, upon energization, will attract j, its armature I4 to rock allatchJS, thereby releas-/- ing stopping pawl I6 for engagement with one of the teeth I1 of the -type bar I0, to interrupt the type bar with the type element I2 corresponding 45 to the perforation sensed, at the printing line.

The type bars are carried by a crosshead I8 mounted for vertical reciprocatlon on rods I 9 and are urged upwardly by spring-operated levers I9 5o pivoted to the crosshead so that upon vinterruption of movement of a type bar, the crosshead will continue to move upwardly and lever I9 will yield to permit the type bar to remain in its adjusted position. 55

The brushes 23 are further connected throughv lower card lever contacts LCL to one side of line 25. The contacts LCL are closed during the period the card is passing the brushes. In the circuit are also shown print magnets .I3 which-are connected through a commutator 26 and cam contacts 21 to the left side of line 28. The record card (Fig. 4) is provided with a lield comprising nine columns, which eld is designated 29. The columns `are numbered 1 to 9 and a series of perforations as indicated is made in which the first column has a perforation in the I index point position, the second column a perforation in the 2 index point position, and so on. The brushes which traverse these nine columns are indicated in Fig. 1 by the numerals l to 9 and as the iield 29 passes these-brushes, contact will be made therethrough in successive order. The brushes LB are provided with multiple plug sockets 30 from which plug connections 3l may be made to plug sockets 32 wired to the printing magnets I3. Thus, for example, if a plug connection is made from the 2 brush socket 30,

to one of the sockets 32, a circuit would be completed from the 2" perforation analyzed to energize the magnet I3 at such time and interrupt its related type bar with the 2 type element in printing position. Similar connections to the other sockets 30 will cause energization of the magnets 30 at times depending upon the brush LB to which connection has been made.

In Fig. 1 are shown three connections for controlling the printing of the date June 29th. for

. which a connection 3| is made from the 2, 6,

and 9 sockets 30 to three adjacent sockets 32 and as the eld passes the brushes, the selected type bars will be positioned to print 6-29.

In Fig. 2 is shown a modified form of the invention in which a commutator 33 having conducting segments 34 electrically connected to a common ring 35 receive current from a brush 36 connected to the brushes 23. The segments 34 are arranged and timed to contact the brushes 31 at the same time that the correspondingly numbered'index point positions are encountered by the brushes LB and it will be appreciated that the circuits completed will be similar to those explained in connection with Fig. 1. In Fig. 2 are shown plug connections 3| for printing the number 15558 in which use of the multiple plug sockets 30 enables the 5 brush 31 to complete three parallel circuits to position three adjacent type bars with the 5 type element in printing position.

While there has .been shown and described and pointed out the fundamental novel features of 2,138,627 the invention as applied to a single modication,

it will be understood that various omissionsgand substitutions and changes in the form and details of the device illustrated and in its operation may be made by those skilled in theart without 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.

' What is claimed is as follows: 1. In a machine of the class described, a plurality of type carriers, means for moving the same to printing position, and means 'for causing the selective positioning of said carriers in the same manner for each operation to repeatedly print a number, said last named means comprising a plurality of magnets, one for each carrier, a series of contacts, one for each digit, plug connections between said magnets and the contacts arranged in accordance with the number to be repeatedly printed and a commutator for completing circuits through said contacts in succession for each operation of the carriers.

2. In a machine of the class described, a plurality of type carriers, means for moving the same -to printing position, and means for'causing the selective positioning of saidv carriers in the same manner for each operation to repeatedly print a number, said last named means comprising a piurality of magnets, one for each carrier, a series of contacts, one for each digit, plug connections between said magnets and the contacts arranged in accordance with the number to be repeatedly printed and including circuit closing means for between saidmagnets and the contacts arranged in accordance with the number to be repeatedly printed and including circuit closing means for completing circuits through said contacts in succession for each operation of the carriers.

y 4. In a machine of the class described, a plurality of type carriers, means for moving the same to printing position and means forA causing the selective positioning of said carriers 'in the same manner for each operation to repeatedly print a number, saidlast named means ccmprisv ing a plurality of controlling devices, one for eachcarrier, a. series of control elements, one for each digit, connections betweenpsaid controllingdevices and saidcontrol elements arranged in accordance with the number to be repeatedly printed and including means for causing said control elements to render said controlling devices eil'ective through said connections in succession for each operation of the carriers.

GEORGE F. DALY.

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