US1916964A - Printing mechanism - Google Patents

Printing mechanism Download PDF

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Publication number
US1916964A
US1916964A US463900A US46390030A US1916964A US 1916964 A US1916964 A US 1916964A US 463900 A US463900 A US 463900A US 46390030 A US46390030 A US 46390030A US 1916964 A US1916964 A US 1916964A
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US
United States
Prior art keywords
type
printing
ring
actuating
drum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US463900A
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English (en)
Inventor
Fred M Carroll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tabulating Machine Co
Original Assignee
Tabulating Machine Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tabulating Machine Co filed Critical Tabulating Machine Co
Priority to US463900A priority Critical patent/US1916964A/en
Priority to DET38989D priority patent/DE562670C/de
Priority to FR720433D priority patent/FR720433A/fr
Priority to GB18380/31A priority patent/GB380843A/en
Application granted granted Critical
Publication of US1916964A publication Critical patent/US1916964A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
    • B41K3/00—Apparatus for stamping articles having integral means for supporting the articles to be stamped
    • B41K3/02—Apparatus for stamping articles having integral means for supporting the articles to be stamped with stamping surface located above article-supporting surface
    • B41K3/04—Apparatus for stamping articles having integral means for supporting the articles to be stamped with stamping surface located above article-supporting surface and movable at right angles to the surface to be stamped
    • B41K3/08—Apparatus for stamping articles having integral means for supporting the articles to be stamped with stamping surface located above article-supporting surface and movable at right angles to the surface to be stamped having adjustable type-carrying wheels

Definitions

  • This invention relates to rotary printing machines and more particularly to a rotary printing drum to be used in con unction with accounting machines and the like.
  • the invention is applicable to the type of rotary alphabet printing tabulator shown in Patent No. 1,726,539, issued to applicant September 3, 1929.
  • the drum disclosed in the patent carries a plurality of rows of pivoted t pe hammers on each of which are disposed a nuniber of type.
  • suitable call mechanism located adjacent to the drum may be actuated to rotate any type carrier about its pivot when it reaches printing position and cause one of its type to strike a paper carrying platen.
  • Each type carrier when it is in printing position may print one of several characters and the platen carriage is shifted to different positions to select the particular type which is to print.
  • the above mentioned patent discloses a call mechanism which acts directly upon the type carrier to swing it about its pivot at a substantially uniform rate of speed so that the path of travel describes an approximate epicycloid. lVith such arrangement the velocity of the type and consequently the 31 weight of impression upon the platen will be constant for a given speed of rotation of the drum. cause a proportionate increase in the velocity of the type and weight of impression. Where a drum is designed to operate at considerably greater speed, it is necessary, in order to obtain a normal printing impression, to so change the geometrical proportion of the type carrier as to render its use inconvenient in a machine where the platen is located in close proximity to the printing drum.
  • a form of printing drum is contemplated in which the call mechanism acts to trip the type carriers through an intermediate member.
  • This member actuates the type carrier through a camming surface so designed as to accelerate the type as it swings against the platen.
  • This camming surface lends itself to variations in outline so that for machines designed to operate at greatly different speeds, it requires only a diflerence in the design of the camming surface to produce the same angular velocity and weight of impression in both cases.
  • the principal object of the invention is to provide in an accounting machine a rotary printing drum of new and improved construction and arrangement of parts to the end that printing on machines of this type may be speed-ed up and that the printing may be effected with clear, uniform impressions.
  • Another object is to provide a rotary printing drum in which pivoted type carriers are adapted to rotate about their pivots in the same direction in which the drum is revolving and with accelerated velocity.
  • Another object is to provide a printing drum of compact, space conserving structure in which the operating mechanism is contained within the drum so that the limiting dimension of the device is the outer circumference of the drum.
  • a still further object of the invention is to provide a rotary printing drum in which the weight of impression of the type is not materially ailccted by changes in speed of rotation of the drum.
  • Fig. 1 is a view in side elevation of the device showing the driving connections.
  • Fig. 2 is a sectional view of the device taken on a plane parallel to Fig. 1.
  • Fig. 3 is-an enlarged position view of one of the type carriers and the associated call mechanism.
  • Fig. 4 is a sectional view taken on line 4-4 of Fig. 2.
  • Fig. 5 is a position view of the call mechanism.
  • Fig. 6 is a plan section of several call units taken on line 6-6 of Fig. 2.
  • printing ring 10 comprises a head 11 at one end which carries slotted bars 12 and a removable head 13 at the other end.
  • Head 11 has secured thereto a gear 14 and is mounted for rotation upolu.
  • a bearing 15 of suitable length which bearing is journalled in thefixed frame 16 of the machine.
  • Head 13 has secured internallythereto a gear 17 and is mounted for rotation upon a stud 18 coaxial with bearing 15. Rotation is imparted to ring 10 through gear 14 which is suitably geared to the machine proper so as to turn the ringone revolution for each cycle of operation of the machine.
  • the call mechanism including end plates 19 and 20 connected by cross plates 21. This structure is supported at one end by bearing 15 and at the other end by stud 18 which in turn is carried b a frame 22 supported upon rods 23 slidab e in fixed bearings 24 of the machine. A pin '25 passes through stud 18 and the hub of frame 22 to hold the call mechanism stationary while the ring 10 rotates thereabout.
  • the call mechanism may be moved axially with respect to ring 10 in the following manner:
  • frame 22 and rods 23 may be slid horizontally to the right as viewed in Fig. 4 carrying therewith head 13 and the entire call mechanism.
  • Rods 23 are of sufiicient length to permit the complete removal of the interior mechanism, while the connecting cables 27 have sufiicient slack at their left to permit movement to the right.
  • the call mechanism is supported upon stud 18 while the printing ring 10 is supported by bearing 15.
  • frame 22 is moved to the left and pin 26 inserted to lock the frame in position.
  • a spring pressed locating pin 28 cooperates with a suitable opening in the end of ring 10 to obtain the correct angular relationship between the arts and to serve as a means of driving hea 13 when gear 14 and head 11 are rotated.
  • the cross plates 21 are slotted to receive individual plates 30, one for each column of type carriers, arranged as shown in Fig. 6 so that adjacent plates are associated with every fourth column of carriers.
  • the plates 30 are arranged in tiers and each tier is offset axially from the others the distance between two columns of type carriers.
  • the individual plates 30 maybe slid into position along appriate slots in bars 21 until they abut cross bars 31.
  • Retaining lugs 32 may then be moved along a slot 33 (Fig. 6) into position to hold plate 30 against bar 31.
  • the lugs may then be locked in position by suitable screws as shown.
  • Each shaft 33 has their ends journalled in end plates 19 and 20 and are adapted to make one revolution for each machine cycle or revolution of rin 10.
  • Each shaft 33 carries a gear 34 attac ed thereto near the inner face of plate 20, the two shafts 33 to the right in Fig. 1 being driven in a counterclockwise direction through gearing 35 by a gear 36 in mesh with gear 17.
  • the two shafts 33 to the left are driven in a clockwise direction by gearing generally designated 37, driven by a gear 38 also in mesh with gear 17. Since end plate 20 is held stationary the turning of printing ring 10 together with the attached gear 17 in a clockwisedirection rotates the various enmeshed gears in the directions indicated by the arrows (Fig. 1).
  • Keyed upon each shaft 33 are a plurality of driving ratchets 39 and a plurality of restoring cams 40, one for each plate 30.
  • each plate 30 Mounted upon each plate 30 is a magnet 41 having an armature 42 pivoted ina conventional manner (see Figs. 2, 3 and 5).
  • armature 42 pivoted in a conventional manner (see Figs. 2, 3 and 5).
  • an angle plate 43 Secured to the upper side of the armature is an angle plate 43 having an opening therein to receive a pin 44 which is secured to a pawl 45 pivoted at 46 upon a member 47 which in turn is pivoted upon a stud 48.
  • a spring 49 extends between pawl 45 and member 47 and tends to hold the parts in normal position as shown in Fig. 2 wherein armature 42 is held in its upper position away from magnet 41; and member 47 is restrained against clockwise movement by a spring pressed detent 50.
  • Pawl 45 lies in the plane of continually running driving ratchet 39 whose teeth are adapted to pass the free end of the pawl in succession during the interval when magnet 41 may be energized. Energization of magnet 41 rocks the pawl 45 into engagement with ratchet 39 as shown in Fig. 3 causing member 47 to be rocked clockwise about its pivot. The lower end of member 47 carries a spring pressed by-pass lever 51 whose heel normally abuts a pivoted lever 52.
  • member 47 causes the heel of bypass 51 to exert a camming action against lever 52 to rock the lever clockwise and clevate a pin 53 resting on its upper edge, which in turn elevates an interposer 54 into the path of the hammer mechanism carried by the printing ring 10.
  • member 47 will swing by-pass 51 clear of lever 52 permitting said lever to be instantaneously restored without effecting member 47
  • the member 47 is held in its clockwise position by engagement of its lower end in a notch in detent 50 as shown.
  • the parts are so shaped that pawl 45 is disengaged from ratchet 39 under the influence of spring 49.
  • Each wire may be connected to a contact blade 57 secured to bar 31.
  • a connection 58 mounted on and insulated from plate 30 is adapted to engage the blade 57 when the unit is inserted and is wired to the magnet 41.
  • a second connection 58 is located beside the first and connects the return wire from the magnet 41 to asecond blade 57 which is connected to a common strip 59.
  • the print ing ring rotates in synchronism with the driving ratchets 39 and as the ratchet teeth successively pass the end of pawl 45, the rows of type carriers 61 successively pass the interposer 54 in the same order.
  • the particular type carrier to be selected for operation depends upon the time of operation of magnet 41, and the particular selection of the type on the carrier 61 depends upon the position of platen 60 (Fig. The mechanisms and circuits involved in the selection of the magnets 41 and the. positioning of platen 60 are fully disclosed in the patent referred to and since they form no part of the present invention need not be further explained here.
  • Each bar 12 is slotted to receive a plurality of type carriers 61 pivoted upon a rod 62 which type carriers are normally latched in the positions in which they appear in Fig. 2, by camming latches 63 pivoted on rods 64.
  • Individual springs 65 urge the latches 63 in a counterclockwise direction against stop rods 66. When in such position the carrier 61 rests against a resilient cushion 67, and a. depending arm 68 thereof is latched against a beveled end of latch 63 as shown. This serves to hold the carrier in position during rotation of ring 10.
  • Each bar 12 carries a restoring plate 69 adjacent to the call mechanism for the purpose of returning interposers 54 to their lower position after they have caused the operation of the type carriers.
  • the time of operation of magnet 41 is such that interposer 54 is moved outwardly in the interval following the passage of the restoring plate 69 associated with the preceding row of carriers and preceding the arrival of the tail of the latch 63 in line with the interposer.
  • the tail of latch 63 subsequently strikes the interposer 54, rapidly rocking the latch in a clockwise direction as the ring 10 continues in its rotation.
  • the upper edge of latch 63 is provided with a cam surface 70 which cooperates with an arm 71 of the carrier to swing the carrier rapidly in a clockwise direction as the arm 68 is unlatched.
  • the slope of cam surface 70 is so selected that it imparts to the carrier 61 an accelerated angular velocity, as the entire ring rotates, to move the carrier toward the platen 60.
  • the restoring plate 69 engages the interposer and forces it downwardly, being permitted to do so by the flexible construction of bypass 51.
  • type members supported both for movement in a circumferential path and for movement in the same direction in a supplemental pivotal striking path, and means for selectively calling one or more of said members into movement in their striking paths.
  • a continually rotating element type members circumferentially disposed in a single row thereon, and selectively controlled camming devices carried by said rotating element adapted to coact with said type members to move one of said members toward a platen when said member occupies a predetermined position.
  • a rotatable element In a printing machine, a rotatable element, a type carrying lever on said element, tripping means for actuating said lever and means carried by said rotatable element for restoring said tripping means.
  • a rotatable element a type carrying lever on said element, means for actuating said type carrying lever in the direction of rotation of said rotatable element and means for tripping said actuating means. 4
  • a rotatable element a type lever carried thereby, actuating means for said lever also carried by said element, and means operative as an incident to the operation of said actuating means for controlling the speed of operation of said lever.
  • a rotatable ring type levers carried by said ring, devices for actuating said type levers carried by said ring and tripping means located within said ring and radially movable in relation thereto for I tripping said actuating devices.
  • a continually running rotatable element type levers carried thereby, a continually running actuator driven by said rotatable element and located internally thereof, tripping mechanism adapted to be operated by said actuator and means effective upon the operation of said tripping mechanism for coupling said levers to said continually running actuator for operation.
  • a supporting element in combination, a supporting element, a type member carried thereby, means for moving said element and thereby advancing a type member first towards printing position and then away from such position, a latch carried by said element for locking said type member at all times, means for actuating said latch to unlock and actuate the type member to displace the same with respect to its movable support when it is adjacent to its printing position to thereby effect printing, said latch being adapted to lock the type member upon its rebound from printing position.
  • a rotatable element a rotatable element, a plurality of type members circumfcrentially arranged on said element, a platen supported adjacent to said element, an interposer adapted to trip any of said members while the latter is passing the platen, a continually running actuator and coupling means for connecting said interposer to said actuator for positive operation of said interposer by said actuator.
  • a continually running rotatable element type levers carried thereby, a continually running actuator located internally thereof, tripping mechanism for said type levers also located internally of said element and means for coupling said tripping mechanism and said actuator for positively controlling the operation of said type levers.
  • a drum located within said cylinder and provided with a plurality of actuating devices one for each column of type elementssaid devices being normally located adjacent to their corresponding columns of elements and means for effecting relative axial movement between said cylinder and said drum to change the relative location of said actuating devices and said columns of type elements.
  • actuating mechanism for said type elements insertible within said cylinder and comprising a plurality of actuating units on each of a plurality of shafts, the units on each shaft being in staggered relationship to the units on the other shafts.
  • a rotatable cylinder type levers carried by said cylinder, devices for actuating said type levers and carried by said cylinder and tripping means located within said cylinder for controlling the operation of said actuating devices.
  • type elements carried by said cylinder and operating elements located Within said cylinder for automatically causing printing operation of said type elements during the rotation of said cylinder.
  • a rotatable cylinder type levers carried thereby, devices carried by said cylinder for actuating said type levers and magnetically controlled tripping means for controlling the operation of said actuating devices.
  • a rotatable ring carrying a plurality of type elements, a rotatable actuator driven in synchronism with said ring and having a plurality of actuating elements thereon one for each of said type elements, and means for connecting one of said actuating elements and said type elements for operation whereby the corresponding type element will be actuated.

Landscapes

  • Handling Of Sheets (AREA)
  • Transmission Devices (AREA)
  • Printers Characterized By Their Purpose (AREA)
  • Labeling Devices (AREA)
US463900A 1930-06-26 1930-06-26 Printing mechanism Expired - Lifetime US1916964A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US463900A US1916964A (en) 1930-06-26 1930-06-26 Printing mechanism
DET38989D DE562670C (de) 1930-06-26 1931-06-12 Druckvorrichtung mit schwingbar an einem beweglichen Traeger sitzenden Typenhebeln
FR720433D FR720433A (fr) 1930-06-26 1931-06-20 Perfectionnements aux machines à écrire rotatives
GB18380/31A GB380843A (en) 1930-06-26 1931-06-25 Improvements in or relating to printing mechanism particularly applicable to statistical or like machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US463900A US1916964A (en) 1930-06-26 1930-06-26 Printing mechanism

Publications (1)

Publication Number Publication Date
US1916964A true US1916964A (en) 1933-07-04

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ID=23841737

Family Applications (1)

Application Number Title Priority Date Filing Date
US463900A Expired - Lifetime US1916964A (en) 1930-06-26 1930-06-26 Printing mechanism

Country Status (4)

Country Link
US (1) US1916964A (de)
DE (1) DE562670C (de)
FR (1) FR720433A (de)
GB (1) GB380843A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692551A (en) * 1950-05-26 1954-10-26 John T Potter High-speed rotary printer
US2766686A (en) * 1953-06-11 1956-10-16 Hughes Aircraft Co High speed electro-mechanical interference-type transducer
US2805620A (en) * 1951-12-15 1957-09-10 Rosen Leo Control means for high speed printing apparatus
US3083638A (en) * 1960-08-10 1963-04-02 Ritzerfeld Wilhelm Automatic selective duplicator
CN109287382A (zh) * 2018-11-12 2019-02-01 浙江工业大学之江学院 一种定角度菌袋打眼机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1270854B (de) * 1964-10-26 1968-06-20 Heinz Braeuning Zeilendrucker mit einer staendig umlaufenden Typentraeger-Trommel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692551A (en) * 1950-05-26 1954-10-26 John T Potter High-speed rotary printer
US2805620A (en) * 1951-12-15 1957-09-10 Rosen Leo Control means for high speed printing apparatus
US2766686A (en) * 1953-06-11 1956-10-16 Hughes Aircraft Co High speed electro-mechanical interference-type transducer
US3083638A (en) * 1960-08-10 1963-04-02 Ritzerfeld Wilhelm Automatic selective duplicator
CN109287382A (zh) * 2018-11-12 2019-02-01 浙江工业大学之江学院 一种定角度菌袋打眼机

Also Published As

Publication number Publication date
FR720433A (fr) 1932-02-19
DE562670C (de) 1932-10-28
GB380843A (en) 1932-09-26

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