US1945895A - Typewriting machine - Google Patents

Typewriting machine Download PDF

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Publication number
US1945895A
US1945895A US575345A US57534531A US1945895A US 1945895 A US1945895 A US 1945895A US 575345 A US575345 A US 575345A US 57534531 A US57534531 A US 57534531A US 1945895 A US1945895 A US 1945895A
Authority
US
United States
Prior art keywords
cam
tabulator
stops
latch
shaft
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
US575345A
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English (en)
Inventor
Frederick A Hart
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.)
Remington Typewriter Co
Original Assignee
Remington Typewriter 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 Remington Typewriter Co filed Critical Remington Typewriter Co
Priority to US575345A priority Critical patent/US1945895A/en
Priority claimed from US634670A external-priority patent/US1973314A/en
Priority to DER86227D priority patent/DE612335C/de
Application granted granted Critical
Publication of US1945895A publication Critical patent/US1945895A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/02—Key actions for specified purposes
    • B41J25/18—Tabulating

Definitions

  • My invention relates to typewriting, combined typewriting and computing and like machines and more particularly to power actuated tabulator mechanism therefor.
  • the main object of my invention is to provide highly efficient mechanism of the character specified.
  • a further object of myinvention is to provide mechanism of thecharacter referred to whichmay be readily embodied in existing machines without modifying, or materially modifying, the existing structural features of such machines.
  • FIG. 1 is a fragmentary, vertical, fore and aft sectional view showing a portion of the tabulator mechanism and some of the associated parts.
  • Fig. 2 is a fragmentary top plan view of the tabulator mechanism with some of the associated parts, a portion of the structure being sectioned away.
  • Fig. 3 is an enlarged detail, fragmentary horizontal sectional view of a portion of the same, the section being taken on the line 3-3 of Fig. 4 and looking in the direction of the arrows at said line.
  • Fig. 4 is an enlarged, detail, side elevation, with parts sectioned away, of a portion of the structure disclosed in Fig. 2, and as seen from the righthand side of the machine and with the parts in normal position.
  • Fig. 5 is a view that corresponds somewhat to Fig. 4 except that the parts are shown in the actuated position, as they appear when a tabulator key is held depressed.
  • Fig. 6 is a diagrammatic side view showing the driving connections between the motor and different parts actuated thereby.
  • Fig. '7 is a detail side view of one of the tabulator key levers and some of the parts controlled thereby.
  • Fig. 8 is an enlarged, detail, fragmentary, face view of the adjustable contact by which the arresting trips are actuated, together with some of the associated parts.
  • Fig. 9 is an enlarged detail sectional view taken on the line 9--9 of Fig. 5 and looking in the direction of the arrows at said line.
  • the denominational tabulator mechanism disclosed in the present instance corresponds in part to that commonly employed in Remington machines.
  • the usual carriage comprising end bars 1, a rear cross bar 2 and a front cross bar (not shown) supports a platen 3 and is mounted on crossed bearing rollers 4. at the front and rear of the carriage to travel from side-to-side of the machine.
  • the carriage supports bracket arms 5 on which are fixed a column stop bar 6 having a series of column stops 7 mounted thereon. These stops 7, as shown in the present instance, are adapted to be moved fore and aft on the column stop bar into and out of effective position.
  • a series of denominational stops 8 are arranged at letter space intervals, each being carried by and projecting forward from a denominational stop lever 9, pivoted at 10 in a tabulator frame 11 fixed to the typewriter frame.
  • each of these levers 9 terminates at its lower end in the rear of a slide 12 mounted on parallel supporting rods 13 for movement fore and aft of the machine and is guided in said movement by guide combs 14 that form part of a frame 15 by which the rods 13 I are supported.
  • the slides 12 are operated by power actuated means, to be hereinafter described, and thus control the movements of the stops 8 to and from projected position, or into and out of the path of the effective column stops '7.
  • any stop 8 to effective position is operative to release the carriage from con-, trol of its escapement mechanism, so as to free the carriage for tabulating movement.
  • this is effected by a universal bar 16 carried by a frame pivoted at 17 to the tabulator frame 11 and provided with an arm 18.
  • a pin 19 on the arm 18 coacts with a link 20 pivoted at its lower end, at 21, to a crank arm 22 on a rock shaft 23.
  • Another crank arm 24 on this rock shaft is connected to an upright link 28, to a standard 29 on the top plate 30 of the machine.
  • the releasing device is provided with a contact shoe 31 that underlies a feed rack 32 carried by the carriage in the usual manner and normally engaging a feed pinion 33 operatively connected with the escapement wheel.
  • actuating devices about to be described are supported by a separate auxiliary frame designated as a whole by the reference numeral 34 and which is detachably connected to the base section 35 of the mainframe of the machine by screws 36, so that said frame 34 and the parts carried thereby may be introduced into and removed from the machine as a single unit.
  • the auxiliary frame 34 supports a pivot rod 37 (see Fig. 4) on which are mounted a series of angular or bell crank levers or actuating device 38, equal in number to the slides 12 and the stop carrying levers 9 with which they coact.
  • the levers 38 are guided by guide combs 39 and 39 supported by the auxiliary frame, and the upper rearwardly extending end of the upright arm of each lever'38 coacts with the forward end of the associated slide 12.
  • the horizontally disposed arm of each lever 38 is connected to one end of a contractile returning spring40 anchored at its other end to a plate 41 secured to the auxiliary frame 34.
  • each lever 38 has pivoted thereto, at 42, a link, selective actuating device or interponent 43, that swings vertically and also moves bodily fore and aft of the machine in a slot in an upright guide comb 44.
  • This guide comb is formed from the same piece as the guide comb 39 and is secured to the auxiliary frame 34.
  • Cooperative with each interponent 43 is an underlying slide 45, each slide being guided for vertical movement at its upper end in a guide slot in the plate in which the guide combs 39 and 44 are formed, and at its lower end in a guide slot in the plate in which the guide comb 39 is formed.
  • Each slide 45 is arranged directly beneath and coacts with the associated interponent 43 so that an elevation of a slide will result in swinging the forward end of the associated interponent upward around its pivot 42, from the Fig. 4 to the Fig. 5 position. This results in bringing the free end of the elevated interponent in the path of movement of a universal actuating member 46 adapted to receive a reciprocatory or oscillatory movement fore and aft of the machine and to coact with any of the interponents 43 when the latter are raised .into the path thereof.
  • aseries of bell crank tabulator key levers 47 provided with tabulator keys 47 are pivotally supported on a pivot rod 47* that 0 8 the machine frame.
  • the depending arm of each lever 47 is detachablypivoted, at 48, to a link 49 that extends fore and aft of the machine.
  • the forward end portions of the links 49 extend in converging vertical planes, whereas the rear end portions thereof are arranged in vertical parallel planes, where they are supported from beneath them by a supporting roller 50.
  • This roller is provided with reduced ends 51 by which the roller is supported in bearings provided for by U-shaped bracket arms 52 formed on the same plate in which the guide comb 39 is cut.
  • This plate has a right angle bend therein, in the. upright portion of which is provided a series of guide slots 53 (Fig. 7) each adapted to receive and guide the free end portion of one of the links 49.
  • Each link 49 at its rear end portion is arranged adjacent to its companion slide 45, and the latter carries an anti-friction roller 54 preferably supported on its slide by bearing balls 55 (see Figs. 3 and 7).
  • Each roller 54 rests on the upper edges of its companion link 49 and is adapted to coact with a cam" thereon.
  • Each cam comprises a low portion 56 on which the companion roller normally rests, an inclined face '57 by which the companion slide is elevated when the link moves rearward, and a dwell 58 on which the roller is-supported to hold the companion slide in its elevated position and resist any tendency of an actuated slide 45 to return to normal position until itscompanion link 49 moves forward to normal position.
  • each tabulator key lever 47 and its link 49 to normal position, when the depressed key is released by the operator, is effected by a contractile return spring 59 connected at one end to an upright arm 60 on the companion link 49 and anchored at the other end to an angle bar 61.
  • One effect, therefore, of depressing a tabulator key is to elevate an interponent 43 into the path of movement of the actuating member 46 and to hold the interponent in such position as long as the key is held depressed by the operator.
  • the actuating member 46 is mounted and controlled in the manner now to be described.
  • the member 46 in addition to its cross bar which coacts with all of the interponents 43, has depending supporting arms 62 and 63 at the ends thereof.
  • Each of these arms has a hub 64 pinned to a rock shaft 65 mounted to rock in hearings in the auxiliary frame 34.
  • the left hand end of this shaft extends beyond said frame where it is provided with a crank arm 66 to which one endof a spring 67 is attached, the opposite end of the spring being anchored on a pin 68 projecting from the frame 34.
  • the arm 62 carries an anti-friction roller 69 mounted on hearing rollers 70.
  • the cam 71 is controlled at each actuation of 145 a tabulator key in the following manner:
  • the cam 71 is mounted and free to turn on hearing balls a (see Fig. 3) on a continuously running motor driven shaft 72. Adjacent to said cam and fixed to the shaft 72 is a locking wheel 150 73 notched at regular intervals, as indicated at 74.
  • the cam 71 carries a latch 75 pivoted on one side thereof, as indicated at 76.
  • the engaging nose 77 of this latch is adapted to be received in one or another of the notches 74 in the locking .wheel, and thus connect the cam 71 to revolve with the shaft 72.
  • a spring 78 exerts its force on the latch 75 to bring about an engagement thereof with the locking wheel.
  • the trip devices 79 and 80 engages a projection 81 on the latch, as shown in Figs. 4 and 5
  • the latch is maintained in the disengaged position against the force of its spring 78, thus holding the cam against movement.
  • the motor driven shaft 72 is preferably supported at its left-hand end on hearing balls b in one side of the base section 35 of the frame, as'
  • the shaft is supported intermediate its ends by bearing balls 0 in an arm 82 detachably secured by screws 83 to the auxiliary frame 34 and arranged in close proximity to the cam.
  • the right-hand end of the shaft 72 is supported on a ball bearing (not shown) in the base section, such bearing corresponding to that indicated at the other end of the shaft.
  • the lefthand end of the driving shaft 72, where it extends beyond the base, has a pinion 84 fixed thereon. From a consideration of Figs. 2, 3 and 6 it will be understood that the pinion 84 meshes with an idler 85 mounted on bearing balls d on 7.
  • trip 80 is constructed and mounted like the trip 79, except that the latter is provided with a hook-like engaging projection 79 to engage the latch in its movement from right to'left, whereas the terminal end.of the trip 80 engages the trip in its movement from left to right. Therefore, the same reference numerals will be employed to designate corresponding parts of the two trips and their mounting means.
  • trip '79 is connected to the upper end of a contractile spring 101, the lower end of the spring being anchored to the plate in which the guide comb 39 is formed. The force of this spring is exerted to normally hold the trip 79 out of the path of the latch 75 and the trip 80 normally in the path thereof, as shown in Fig. 4.
  • a yokelike universal bar 102 the forwardly bent arms 103 of which are pivoted at 104 to the auxiliary frame 34.
  • This universal bar overlies the upper edges of all of the interponents 43 in a position to be moved upward around its pivots 104 to the Fig. 5 position when any of said interponents is elevated on the depression of the corresponding tabulator key 47
  • the universal bar 102, 103 in its normal lowered position is supported by an adjustable screw stop 102* (Fig. 5) so as to normally maintain said bar free from contact with the interponents 43 as shown in Figs. 4 and 8.
  • the universal bar 102 carries an adjustable contact in the nature of a bar 105 provided with inclined slots 106 (see Fig. 8) through which the stems of headed screws 107 pass. As shown in Fig. 4 the rear threaded ends of these screws are received in tapped openings in the universal bar 102.
  • This construction affords a raising or a lowering of the contact 105 on the universal bar when the screws are loosened, and when they are tightened the contact is clamped in its adjusted position.
  • This contact underlies the rear end of the trip 79, and as the universal bar is elevated the engaging end of the trip will be lowered to the Fig. 5 position in the path of the latch 75, or the projection 81 thereon.
  • each of the links 49 is beveled at 49.
  • the purpose of such bevels is to facilitate assembling the parts.
  • the frame of the machine is made of two sections, hinged together at the rear thereof to enable the upper section to be swung back on.
  • the construction is such that the power actuated tabulator mechanism may be rapidly actuated with the exertion of but very little force on the tabulator keys, yet the mechanism is comparatively simple in construction and easy to assemble in existing machines, with little or no modification of the existing structural features thereof.
  • cam loosely mounted on said shaft a latch for fixedly connecting said cam to turnv with said shaft, a tabulator stop, means including said cam for controlling the movement of said tabulator stop into and out of effective position, a tabulator key, and means controlled thereby for controlling said latch, said last mentioned means comprising two 'trip devices which coact alternately with said latch.
  • a cam loosely mounted thereon, a latch carried by said cam for positively connecting said cam to turn with said shaft, a tabulator stop, means including said cam for controlling the movement of said tabulator stop into and out of efl'ective po-.
  • said last mentioned means comprising two trip devices which coact alternately with said latch first to enable the latch to be moved to engaging position by withdrawing one trip device from contact therewith during the depression of the tabulator key and for simultaneously interposing the other trip device in the path of the latch to disengage it after the cam has completed a predetermined extent of turning movement, whereby the projected tabulator stop may be held in its effective position as long as the key is held depressed, the second trip device being withdrawn from contact with the latch and the first trip device being interposed in the path thereof when the depressed key is released by the operator and returns to normal position, thereby enabling the tabulator stop to return to normal ineffective position and a disconnection of the cam from the power shaft to be effected when the cam has completed its cycle.
  • tabulator stops and power driven means for actuating said tabulator stops including a power actuated cam, selective interponents one for each of said tabulator stops, tabulator keys, and means controlled by said keys for selectively controlling said interponents for actuation by said power actuated cam.
  • tabulator stops and power driven means for actuating said tabulator stops including a power actuated member, selective interponents one for each of said tabulator stops, tabulator keys, means controlled by said keys for selectively controlling said interponents for actuation by said power actuated member, a rotary cam for actuating said power actuated member, and means controlled by the tabulator keys for controlling the rotation of said cam.
  • tabulator stops including a power actuated reciprocatory member, power actuated mechanical means for controlling the reciprocation of said reciprocatory member selective members movable selectively into the path of said reciprocatory member where they are rendered effective to transmit motion from said reciprocatory actuating member to the actuating connections for said tabulator stops, tabulator keys, and means controlled by said keys for selecti'vely controlling said selective members for the transmission of movement through the actuating connections to the respective tabulator stops.
  • tabulator stops including a power actuated member, selective members movable into and out of positions where they are rendered effective to transmit motion from said actuating member to the actuating connections for said tabulator stops, tabulator keys, means controlled by said keys for selectively controlling said selective members for the transmission of movement through the actuating connections to the respective tabulator stops, a power actuated cam, and means controlled by said keys for causing said cam to be actuated by its power actuated means.
  • tabulator stops including a power actuated member, selectivemembers movable into and out of positions where they are rendered effective to transmit motion from said actuating member to the actuating connections for said tabulator stops, tabulator keys, means controlled by said keys for selectively controlling said selective members for the transmission of movement through the actuating connections to the respective tabulator stops, a power actuated cam for actuating said actuating member, and means controlled by a depression of any of said keys for effecting a half revolution of said cam under the force of its power and for effecting the second half of the revolution of said cam when a depressed key is released and returns to normal position.
  • tabulator stops an actuating member therefor, actuating connections for said stop including selective members movable into and out of the path of said actuating member, tabulator keys, means controlled thereby for selectively moving said selective members into the path of said actuating member, a cam for controlling the movement of said actuating member, power means for turning said cam, means controlled by a depression of each of said keys for turning said cam a half revolution by its power means thereby holding the projected stop in effective position as long as a key is held depressed and for turning the camthe other half revolution when the depressed key is released and returns to normal position, thereby afiording a return of the projectedtabulator stop to normal position.
  • power actuated key selected means for controlling the movement of said stops into and out of effective position said means including a power actuated oscillatory member,'individual actuating devices one for each of said'stops, tabulator keys, means controlled by said keys for selectively moving said actuating devices into the path of said oscillatory member, and means for maintaining the actuated tabulator stop in its actuated position so longas the associated tabulator key is held depressed.
  • power actuated key selected means for controlling the movement of said stops into and out of effective position said means including an oscillatory member, individual actuating dev ces one for each of said stops, tabulator keys, means controlled by said keys for selectively moving said actuating devices into the path of said oscillatory member, individual actuating devices movement of said oscillatory member, a power driven shaft, connecting means for connecting said cam to turn with said shaft, and means controlled by said keys for controlling said connecting means.
  • tabulator stops and power actuated key selected means for actuating said stops comprising a continuously running motor-driven shaft, a cam having a high spot thereon, a spring-pressed latch carried by said cam for connecting the cam to turn with said shaft, means coacting with said latch to release it, and a spring pressed roller bearing against said cam and coacting with the said high spot on the cam to hold the latter against the reactive force of its latch spring when the cam is in normal position and the latch is released.
  • Patent. No. l, 945, 895 Patent. No. l, 945, 895.
US575345A 1931-11-16 1931-11-16 Typewriting machine Expired - Lifetime US1945895A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US575345A US1945895A (en) 1931-11-16 1931-11-16 Typewriting machine
DER86227D DE612335C (de) 1931-11-16 1932-10-26 Tabulator fuer Schreibmaschinen, Rechenmaschinen o. dgl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US575345A US1945895A (en) 1931-11-16 1931-11-16 Typewriting machine
US634670A US1973314A (en) 1932-09-24 1932-09-24 Typewriting machine

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US1945895A true US1945895A (en) 1934-02-06

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US575345A Expired - Lifetime US1945895A (en) 1931-11-16 1931-11-16 Typewriting machine

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DE (1) DE612335C (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478630A (en) * 1945-04-14 1949-08-09 L C Smith & Corona Typewriters Power-operated printing machine
US2489826A (en) * 1947-02-06 1949-11-29 Ibm Power mechanism for typewriting machines
US2852122A (en) * 1952-06-10 1958-09-16 Royal Mcbee Corp Tabulating mechanism for typewriter or like machines
US3177342A (en) * 1963-05-21 1965-04-06 Sunbeam Corp Cooking device
US3338368A (en) * 1964-08-01 1967-08-29 Olivetti & Co Spa Function operating device for an electric typewriter
US3358805A (en) * 1964-08-01 1967-12-19 Olivetti & Co Spa Express margin setting device for typewriters
US3371764A (en) * 1965-10-02 1968-03-05 Olympia Werke Ag Power roll coupling cam
US3438476A (en) * 1966-05-26 1969-04-15 Litton Business Systems Inc Fixed time delay for carriage return mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088988B (de) * 1952-05-08 1960-09-15 Ibm Deutschland Antriebsvorrichtung fuer den Reiteranschlag einer Dezimal-tabuliereinrichtung an kraftangetriebenen Schreib-, Rechen- u. dgl. Maschinen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478630A (en) * 1945-04-14 1949-08-09 L C Smith & Corona Typewriters Power-operated printing machine
US2489826A (en) * 1947-02-06 1949-11-29 Ibm Power mechanism for typewriting machines
US2852122A (en) * 1952-06-10 1958-09-16 Royal Mcbee Corp Tabulating mechanism for typewriter or like machines
US3177342A (en) * 1963-05-21 1965-04-06 Sunbeam Corp Cooking device
US3338368A (en) * 1964-08-01 1967-08-29 Olivetti & Co Spa Function operating device for an electric typewriter
US3358805A (en) * 1964-08-01 1967-12-19 Olivetti & Co Spa Express margin setting device for typewriters
US3371764A (en) * 1965-10-02 1968-03-05 Olympia Werke Ag Power roll coupling cam
US3438476A (en) * 1966-05-26 1969-04-15 Litton Business Systems Inc Fixed time delay for carriage return mechanism

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Publication number Publication date
DE612335C (de) 1935-04-25

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