US1395121A - Recording-machine - Google Patents

Description

H. LANDSIEDEL.

RECORDING MACHINE.

APPLICATION HLED FEB. 11. 1920.

Patented Oct. 25, 1921.

3 SHEETS-SHEET I.

WITNESS,

f i By @WK S A UBA/EVS.

H. LANDSIEDEL` RECORDING MACHINE.

APPLICATION FILED FEB. II, 1920. 1,395,121. Patented Oct. 25, 1921.

3 SHE TS-SHEET 2.

1 By l J I I /f/J AOR/VEYS.

H. LANDSIEDEL.

RECORDING MACHINE.

. .APPLICATION FILED FEB. II. 1920.

1,395,121.' Patented Oct. 25, 1921.

'.SHEETS-SHEET 3. zgr

WITNESS. /N VE N TUI?.

UNITED STATES PATENT OFFICE.

HARRY LANDSIEDEL, OF NORWOOD, OHIO, ASSIGNOR TO THE DALTON ADDING MACHINE COMPANY, 0F CINCINNATI, OHIO, A CORPORATION 0F OHIO.

RECORDING-MACHINE.

Specification of Letters Patent.

Patented Oct. 25, 1921.

Application filed February 11, 1920. Serial No. 357,776.

To all whom t may concern.:

Be it known that l, HARRY LANnsIEDEL, a citizen of the United States, residing at Norwood, Hamilton county, and btate of Ohio, have invented a new and useful Recording-Machine, of which the followinois a specification.

his invention relates to recording machines.

An object of the invention is to provide an improved printing mechanism for use in adding machines and in any other embodiments in which it may be satisfactorily employed.

Another object of the invention is to provide a printing mechanism, comprising individual hammers arranged for percussive action against printing type, equipped with a novel form oi' quick acting mechanism for controlling the operation of the hammers.

Another object of the invention is to equip an adding machine with type driving hammers arranged to be released under control of the type-carriers, provided with equipment whereby the tripping elements of the hammers will not present any undue resistance against the type-carriers as the latter move to their positions in which the type on the carriers are supported in position for printing. i

A further object is to provide a novel mechanism for interrupting or splitting the cooperative relationship between the hammers, whereby release oi' hammers in lower numerical orders by hammers in higher nu-l merical orders may be prevented.

In the drawings I have illustrated my invention embodied in a Dalton adding machine, though it will be apparent that the use of the invention is not restricted to a Dalton machine. The invention may well be used in other embodiments. In the drawings,

Figure l is a side elevation of the operative mechanism of a Dalton adding machine having my invention embodied therein, certain of the shafts and frame parts being in section.`

Fig. 2 is a plan view of the parts-of the printing mechanism below the line A-A of Fig. 4.

Fig. 3 is a front elevationA of the printing mechanism.

Fig. 4 is a side elevation of the printing being removed showing the hammers and the hammer latches engaged in their normal positions.

Fig. 5 is a similar view showing the ositions of one of the hammers and its latch after the hammer has operated to print.

Fig. 6 is an enlarged plan view of the hammer latches and the coperatng couplings.

Fig. 7 is a view showing the construction by which the couplings may be latched in different adjustments for the purpose of splitting the machine, or effecting coperative relationshi between the couplingsin different numerlcal orders.

Fig. 8 is a view showing the coupling latched in position in which the coperative relationship is interrupted so that the latch member on which said coupling is mounted may bereleased from its coperating hammer without releasing the coupling in the adjacent lower numerical order.

Fig. 9 is an enlarged perspective view illustrating more clearly the arrangement of the latches and couplings.

The mode of operation of the type-carriers 1 of the Dalton adding machines under control of the differential mechanism 2 is well known, aS is the fact that the Dalton machine includesa controlling shaft 3 which is turned in one direction to permit the type-carriers to operate 'after the differential mechanism has been set and is turl' 'd in the opposite direction to its starting 'point to return the type-carriers to their starting points after printing has been effected. The vusual adding pinions 4 and their controlling racks 5 are shown, said racks being cooperatively associated with the type-carriers in order to operate the adding pinions properly. The printing type 6 are supported by the type-carriers and in the case of the Dalton adding machines are driven to effect printing upon paper fed to the type by a platen roller 7 and coperating mechanism.

n the case of the Dalton machine the printing faces of the type are toward the platen and after the type-carriers have been operated to and stopped in proper positions to aline the desired type at'the printing line, the hammers are percussively operated to strike the outer ends of the type and thereby drive the type as required to print.

My present invention comprises a set of mechanism, one of the side frame plates/printing' hammers-:fv-a-rranged in numerical eluded, since the hammers may be caused to operate at other times if desired;

The printing hammers 8 are pivotally supported upon a shaft 9 and are guided between teeth of a comb plate 10 and also between the teeth of a comb plate 11. Each hammer is provided with a projecting arm 12 and retractile springs 13 connect the arms 12 with a rod 14, the power and tension of said springs bein exerted to drive the hammers percussive y against the type alined at the printing line. For each hammer anv individual releasable latch is provided, said latches being effective to hold the hammers in their retracted positions shown in Figs. 1 and 4 until said latches are released at the proper time by mechanism provided for that purpose. As shown, each latch'- c'omprises' an appropriately shaped `vmember 15' having a .shoulder 16 for engaging the `arm 12 of the' 'correspondin hammer to hold the hammer retracted. prings 17 connect depending arms on the latch l riers move to their startin points.

members with a rod 18 and yieldingly hold the latches engaged with the arms 12 of the hammers. The latch members are operatively'supported by the guiding comb plate 11 and another guiding comb plate 19 between the teeth of which comb plates the latch members are movable into and o utof engagementjwith the arms 12 of the'Qh'ammers. As will be apparent by referenceto.

Figs. 4 a1id '5,`the tendency of the sprin 17 1s to raise the rear or inner ends of t e latchmembers from the positions showninf Fig. 4 to the positions shown in Fig. 52;

When the machine is idle and at rest, the rear ends of the latch members 15 are held in their lower positions by appropriate projections 2() on the corresponding' type-carriers (Fig. 1), said projections enga 'ng the upper edges of the rear or inner en s of the latch members and holding them pressed downward. After printing has been effected the rear ends of the latch members are pressed downwardly to their normal or idle psltlons by projections 20 as the typecarbecause the rear ends of t e latch members 15 arein the path of movement of the projections 20 so'that as the ty e-carriers return to their vstarting points t e latch members are automatically returned to their 'proper positions.k Y' v This is A rod 21 is supported by the side frames of the hammer mechanism and serves as an abutment to limit rearward movement ofthe latch members and also as a species of fulcrum or pivot against which the lat'ch members may turn when said members rlse ,to the positions in which they are shown in Fi 5. f

ach of the latch members, except the one in the highest numerical order which is at the extreme left relative to the operator facing the machine, has a projection 22 extending toward the latch member in the adjacent higherv order in position to be engaged by a -coupling so that when any latch member above the one in lowest. order is moved to release the corresponding hainmer, all other latch members in lower orders may also be moved to release their hammers. Certain of the projections 22 are arranged to coperate with pivoted couplings 23 which are preferably of resilient material supported on pivots 24 on adjacent latch members. Each coupling carries a block 25 which, in one position of the coupling,- is in position to be engaged by the projection 22 on-the latch member inthe next adjacent -lower numerical order; and which, in another position of the coupling,-is out of position to be engaged by said projection, thus permitting the machine to be split or divided so as to prevent release of hammers .in lower numerical orders as an incident tooperation of hammers in higher numerical orders. As shown each coupling 23 is in the form of an angular plate supported on its pivot 24 near the angle of the coupling, and having a projection 26 serving as a detent to engage in an opening or recess 27 to latch each coupling in position to be engaged by the adjacent projection 22, andv also afrranged to be engaged in a recess 28 to latch the coupling in position so that it will not be' engaged by the adjacent projection 22,thus4 leaving the latch member, on which the coupling is supported free to be released without effecting release of latch members toward l'ower orders. i

An extension 29 on each coupling serves as a key' or handle by which the coupling may be engaged for purpose of adjustment, to latch the coupling in either operative or inoperative position as desired. Since the operative mechanism of the machine is largely inclosed within a. case provision is made for permitting access to the couplings through an opening 30 in the case.

Release of the hammers is effected at the proper time by a release bar'31 having one end pivoted on a support 32 (Fig. 2) andthe opposite end pivoted to the upper extremity of a lever 33. The lever 33 1s pivoted on a i support 34 and the lower end of said lever has an' arm carrying a roller 35 operating upon upper edge oifv acam 36carried by the shaft 3 and having a depressed 'r- `tion or recess 37 near its rear end. hen the shaft 3 is turned in a forward direction, that is toward the operator of the machine, theroller rides upon the upper edge of the cam 36 and the printing hammers in the 'embodiment shown are not released until bar 31 with it. Such movement of the releasebar 31 is sufficient to take said bar beyond the rear edges of the shoulders 38 on the latch members 15. The shoulders 38 had previously engaged against the under edge of the release bar 31 and limited upward movement of the latch members lwhichhad been permitted to rise by the movement of the corresponding type-carriers to recording position. The type-carriers which had notmoved to the recording position remain stationary or approximately stationary and do not move a sufficient distance to permit the corresponding latch members l5 to rise.` However, the latch members corresponding to the type-carriers which had moved lto recording position are permitted to rise, due to the fact that the projections 20 on the type-7 carriers which had moved to recording p osition permit such movement of the latch members. From .this it follows Vthat the lsprings 17 raise the latch members which vmaybe raised to engage the shoulders 38 of said'latchmembers in front of the latch release bar 31 about the time that the shaft 3 completes its forward turning movement. A's the shaft 3 starts on its return movement, that is its movement toward its starting point, the cam 36, by contact with the roller 35, swings the upper end of the lever 33 and thereby the latch release bar 31 forwardly, thus moving forward to released position all of the latch members 15 whose shoulders 38 had become engaged in front of the release bar 31, as previously described. This operation occurs during the initial portion of the return movement of the rock shaft torward its starting point in the embodiment shown; such release of the hammers being vquickly effected, permitting immediate percussive'action of the hammers against the type. The lever 33 is actuated in one direction by a spring 39 and is operated against the power of said spring by the fzeamv36.

A device is provided to restore the hammers into latehed engagement with the latch members 15.' As shown, the restoring device comprisesfaf'bail'including' a rod 40 supported transversely at' therear of the hammers by a 'pair of armsilwhich are attached to a rock shaft.42. A Vlever 43,

which may be an extension of one of the arms 41, or otherwise-attached to the shaft 42, has a roller 44 operating on a cam 45 attached to the shaft 3. As the shaft 3 is turned in a forward direction to permit the type-carriers to move to recording position, t e cam 45 moves along under the roller 44 until a notch or depression 46 (Fig. 1) on the cam is presented at the roller. A spring 47 serves to actuate the arms 41 rearwardly to swing the rod away from the hammers to permit the hammers to be operated by their springs 13 when the hammers are released as above 'described The movement of the bail away from the hammers takes place about the time that the forward turning movement of the shaft 3 is completed and prior to the release of the hammers. When the shaft 3 starts on its return movement after having completed its forward turning movement the cani quickly raises the lever 43 thereby actuating the arms 41 and the rod 40 in a direction to restore the hammers into latched engagement with the latch members 15.

From the foregoing it is apparent that my .invention serves Yits purposes in a highly efficient manner. Plainlythe invention may be used in adding machines other than the Dalton adding machine. I do not restrict myself to the use of the invention in any particular machine, nor do I otherwise limit myself to unessential features since it is apparent that lthe invention may be varied without departure from the nature and princi le thereof.

Vhat I claim and desire to secure by Letters Patent, is

1. In a recording machine, the combination of type-carriers,.spring actuated hammers for driving the `type on said type-car riers to print, a latchY for holding each of said hammers in retracted position, a device for releasing the latches corresponding to the` type-carriers in recording positions, springs for moving latches into latching engagement with said device when the corresponding type-carriers move to recording positions, and means controlled directlfy by `the type-carriers preventing release o the latches corresponding to the type-carriers which are out ofV recording position', andcoperating with said sprin to move released latches to their initia positions into engagement .with the corresponding hammers when the type-carriers move to their g starting positions.

2. Ina recording machine, the combination -of type-carriers movable to and from recording positions, hammersA for driving the type on the typefcarriers to print, meansfory retracting the.v hammers from the type, latch members for lholdin the hammers retracted, a device for re easing the latch members from the hammers corresponding to the type-carriers in recording positions, a spring for moving each of the latch menibers into engagement with said device, and means supported and operated by the typecarriers for moving said latch members out of engagement with said device as an incident to movement of the type-carriers toward their starting positions, and arranged to permit said springs to move said latch members into engagement with the hammers which had been operated.

3. In a recording machine, a shaft, hammers pivoted on said shaft, elements for guiding said hammers in their operations, a latch member engaging each hammer, a device for releasing said ,latch members from said hammers, a trip actuated by one latch member for releasing another latch member from the hammer engaged by the latter, means controlled by the type-carriers holding said latch members out of engagement with said device when the typecarriers are out of recording position and permitting said latch members to be moved into engagement with said device when the type-carriers move to recording position, and springs for moving said latch members into engagement with said device when the type-carriers move to recording position, and for moving the latch members into engagement with said hammers when the type-carriers'- move from their recording positions.

l. In a recording machine, the combination of a series of type-carriers, hammersl for driving the type on said type-carriers to print, a rock shaft operable in forward and return turning movements, mechanism for positioning the type-carriers for printing as an incident to the turning of said shaft in one direction, latches holding said hammers in retracted positions, a device actuated by the return turning vmovements of said rock shaft for releasing said latches from said hammers during the return turning movementof said rock shaft, springs for moving the latches into position to be engaged by said device as an incident to movement of the type-carriers.. to recording osit-ions and arranged to move said late es into engagement with the hammers as an incident to movement of the type-carriers from their recording positions and during the .return turning movement of said rock shaft, and elements operated by the typecarrieis during their movement from 'recording position-for moving said latches in opposition to the power of said springs` outy of position to be engaged by said device and leaving said springs free to movesai latches into engagement with said hammers,

5. In a recordin machine, the combination of a series o type-carriers, hammers for driving the type on said type-carriers to print, a rock shaft operable in forward and return turning movements, mechanism for positioning the type-carriers for print` `device `to release from the hammers suci latches as engage said device, and means operated by the type-carriers during] their movement toward their starting points for moving said latches in opposition to the power of said springs out of position to be engaged by said device, and arranged to hold corresponding latches out of position to be engaged by said device until the typecarriers move toward their recording positions.

6. In 4a recording machine, the combination of a rock shaft operable in forward and return turning movements, type-carriers movable to recording osition during turning movement of said s aft in one direction,

spring actuated hammers for driving the type on said type-carriers to rint, a latch member for engaging and holding each hammer in a retracted position, a'swinging bai" for releasing latch members during the initial movement of said rock shaft toward its starting point after the type-carriers have been positioned for printing, means for operating said bar from said Arock shaft during the initial portion of the return turning movement of said rock shaft, and a spring connected with each latch member arranged to move the same into position to be engaged by said bar as an incident to movement of the corresponding type-carrier toward recording position, and arranged to move said latch member into engagement with the corresponding hammer as an incident to Vmovement of the corresponding type-carrier form recording position.

7 In a recording machine, the combination of a rock shaft operable 'in forward and return turnin movements, type-carriers movable to recor ing position during movement of said shaft in one direction, hammers for driving the type on said type-carriers todprint, a latch member for engaging and hol ing each hammer in retracted position, a device for releasing said latch members during initial movement of said rock shaft toward its starting point after the type-carriers have been positioned, sprin for moving said latch members during t e forward turning movement of said -rolck shaft to position to be engaged by said device as an incident to movement of the corresponding type-carriers to recording position of a rock shaft, type-carriers movable to .recording position during turning movement of saidshaft in one direction, spring actuated hammers for driving the type on said type-carriers to print, a latch member for engaging and holding each hammer in a retracted position, a device for releasing said latch members during the initial movement of saidrock shaft toward its startin point after the type-carriers have been pos1tioned for printing, a cam on the rock shaft controlling and timing the operation of said' device, means operated by the type-carriers h for disengaging said latch members from said device, and means for operating said device from said rock shaft as an incident to movement of the type-carriers to their recording positions.

9. In a recording machine, a series of type driving hammers, a number of supports, a series of latches movable longitudinally Von said supports into and out of latching engagement with said hammers, a bar, a stationary support to which said bar is pivoted, means for moving selected ones of said latches into position to be engaged by said bar, and a lever for oscillating said'bar to release said latches from said hammers.

10. In a recording machine, a series of type driving hammers, a number 0f Su ports, a series of latches movable longitud?- nally on said supports into and out of latching engagement with said hammers, a bar, a stationary support to which said bar is pivoted, means for moving selected ones of said latches into position to be engaged by said bar, a lever for oscillating said bar to release said latches from said hammers, and devices for oscillating said lever.

11. In arecording machine, a series of type driving hammers, a number of supports, a series of latches movable longitudinally on said supports into and out of latching engagement with said hammers, a bar, a stationary support to which said bar is pivoted, means for moving selected ones of said latches into position tobe enga ed by said bar, a lever for oscillating said iar t0 release said latches from said hammers, and springs acting to move said latches into engagement with saidhammers.

12. In a recording machine, a series of type driving hammers, a shaft on which said hammersare pivoted,rsprings for actuating said hammers in ltype driving operations, devices'for guiding said hammers in their movements by said springs, a projection integral with each hammer, supports, latches arranged for pivotal and longitudinal movements on said supports, a bar for moving said latches out of engagement'with said projections, springs for moving said latches longitudinally on said supports into enga ement with said projections' and pivotaIly into 'engagement with said bar, a coupling member pivoted on each latch whereby latches in lower orders will he moved out of engagement with said projections by latches in higher orders, and means for latching said couplings in position to prevent release of latches in lower orders by latches in higher orders, leaving the latches in higher orders free to be released while the latches in lower orders remain engaged with said projections.

131 In a recording machine, a series of type driving hammers, a shaft on which said ammers are pivoted, springs for actuating said hammers in type driving operations, devices for guiding said hammers in their movements by said springs, a projection integral with each hammer, supports, latches movable longitudinally on said supports 100 into and out of engagement with said projections, springs for moving said latches into engagement with said projections, a coupling member pivoted on each latch whereby latches in lower orders will be 105 moved out of engagement with said projections by latches in higher orders, means for latching said couplings in position to pred vent release of latches in lower orders by latches in higher orders, leaving the latches 110 in higher orders free to be released while the latches in lower orders remain engaged with said projections, a pivoted release bar, and

.mechanism for operating said bar as required to release said latches.

14. In a recording machine, a number of type driving hammers, a shaft on which said hammers are pivoted, springs for operating said hammers, latch members for holding said hammers respectively in r e 120 tracted positions in opposition to said springs, springs forholding said latches in engagement with said hammers, means for moving said latches in opposition 'to the last-named springs to release said latches i215 selectively, cou lings pivoted to said latches, means for late ing said couplings in position to effect release of latches in lower orders as an incident to release of latches in higher orders, means for lathng Said W9 couplings in position to permit operation of latches in higher orders without releasing latches -in lower orders, and a manually engageable part wholly supported by each coupling whereby said couplings may be moved from one position to another.

15. In a recording machine, a series of y type driving hammers, a series of latches for lease of the adjacent latch'or out of position to effect such release of the adjacent latch as desired, and a manually engageable part supported by the other arm of said coupling for moving said coupling to said positions as desired.

16. In a recording machine, a series of type driving hammers, a series of latches for holding said hammers in retracted positions, a bar movable to release said latches from said hammers, a stationary support upon which said bar is pivoted, a lever for oscillating said bar, a rock shaft, and a cam attached to said rock shaft arranged to operate said lever and thereby said bar in a direction to release said latches from said hammers during the initial movement of said rock shaft toward its starting point after said rockshaft has completed its full movement from its starting point.

p 17. In a recording machine, a.=sfe,ries of type driving hammers, a series of latches for holding said hammers in retracted positions, a bar movable to release said latches from said hammers, a stationary support upon which said bar is pivoted, a lever for oscillating said bar, a rock shaft, a cam attached to said rock shaft arranged to operate said lever and thereby said bar in a direction to release said latches from said hammers during the initial movement of said rock shaft toward its startin point after said rock shaft has complete vits full movement from its starting point, and mechanism operated by said rock shaft during movement of said rock shaft to its starting point after said hammers have been released as aforesaid for operating said hammers to position to be engaged by said latches.

' 18. In a recording machine, a series of type driving hammers, a series of latches for holding said hammers in retracted positions, a bar movable to release said latches from said hammers, a stationary support upon which said bar is pivoted, a lever for oscillating said bar, a rock shaft, a cam attached to said rock shaft arranged to operate said lever and thereby said bar in a direction to release said latches from said hammers during the initial movement of said rock shaft toward its starting point after said rock shaft has completed its full movement from its starting point, and springs for operating the hammers which are released as aforesaid.

19. In a recording machine, a series of type driving' hammers, latches for holding said hammers retracted, a rock shaft arranged to be turned from and to a definite starting position, a device for releasing said latches from said hammers, a lever for operating said device, a cam operated by said rock shaft arranged to operate said lever shaft to operate said bail after said hammershave been operated and during movement of the rock shaft. toward its starting position after that portion of the initial movement of said rock shaft toward its starting position during which the hammers are released as aforesaid.

- 20. In a recording machine, a series of type-carriers movable to and from recording positions, hammers for driving the type on said type-carriers to record, springs for operating said hammers, latches movable into and out of latched engagement with said hammers, a swinging bar, and means movable by the type-carrlers to position to hold said latches out of position to be engaged by said bar.

21. Ina recording machine, a series of type-carriers movable to and from recording positions, hammers for driving the type on sa1d typecarriers to record, springs for Op` eratlng said hammers, latches movable into and out of latched engagement with said hammers, a swinging bar, means movable by the type-carriers to position to hold said latches out of position to be engaged by said bar, and means for moving into positlon to be engaged by said bar the latches which correspond to the type-carriers which are operated.

22. In a recording machine, a rock shaft operable in forward and return turning movements, a series of type-carriers movable to recording position during turning movement of said rock shaft from its starting position, spring actuated hammers for driving the type on said type-carriers to print, latches for holding said hammers retracted, a device for releasing latches of the hammers corresponding to the type-carriers which move to recordlng position, mechanism for operating said device to effect release of latches from hammers during the initial portion of the return turning movement of said rock shaft, and means on the type-carriers which remain stationary for preventing operation of latches holding the hammers corresponding to said stationary type-carriers. I

23. Ina recording machine, a rock shaft, typecarriers movable to recording position during turning movement of said rock shaft from its starting point, hammers corresponding to said type-carriers respectively, latches holding said hammers retracted, a swinging bar for releasing latches, means carried by the type-carriers for holding said latches out of position to ybe engaged by said bar, means for moving the latches to position to be engaged by said bar when the type-carriers operate, a cam operable by the rock shaft during the initial movement of said rock shaft toward its starting point after,` said rock shaft has completed its full movement from its starting point for operating said bar to release the latches engaged by said bar, means for operating the hammers released as aforesaid, a bail for moving said hammers into latched engagement with said latch members after operation of said hammers, and a cam operated by said rock shaft to operate said bail after said hammers have been operated as aforesaid and during movement of said rock shaft toward its starting point subsequent to that initial movement of said rockshaft toward its starting point during which the hammers were released and operated.

HARRY LANDSIED'EL.

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