US902125A - Printing-eliminating device for adding-machines. - Google Patents

Description

U. WALES.

PRINTING BLIMINATING DEVIGE FOB. ADDING MACHINES.

APPLIUATIOK FILED 00'1. 23,1906.

Patented Oct. 27, 1908.

6M Inventor:

"UNITED STATES PATENT OFFICE.

CHARLES WALES, OF CLEVELAND OHIO, ASSIGNOR TO THE ADDER MACHINE COMPANY, OF KINGSTON, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

PBINTING-ILIKINATING DEVICE FOR ADDING-MACHINES.

Specification of Letters Patent.

Patented Oct. 27, 1908.

Application flied October 28, 1908. flerial No. 340,186.

To all whom it may concern:

Be it known that I, CnAnLns WALES, a citizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Printing-Eliminating Devices for Addin -ltlachines, of which the following is a s eoiflcation.

My invention rc ates to adding machines and its object is to provide means entirely under the control of the operator whereby the mechanism for enumerating the items to be added may be utilized to accumulate it into the total of the other items enumerated without, however, recording it with such other items.

Machines of this class have reached a high de ree of erfection and are accurate and relia le. Tiey commonly comprise accumulating mechanism and recording or printing mechanism, and the usual operation 13 to set up the items on keys, and then, by the movemcnt of a handle, or the vibration of a shaft, set in motion trains of mechanism whereby. the items so set up are accumulated and recorded and finally, through other mechanism, a total is determined and recorded. There are a variety of other functions performed b the different mechanism, but the above is t eir main purpose.

It is convenient at times to accumulate an item without recordin it on the slip on which other items are fiisted and recorded. Where the mechanism is in its normal state this cannot be done because all of the items enumerated by means of the keys are printed as the Y are accumulated. I have, however,

rovi ed a means called an elimination ey or non-printing key whereby thefunction of the rinting mechanism is interrupted without a ecting the functions of the other mechanism. I also provide means for restoring this function or keeping it interrupted at will.

In order to explain the inv ntion I shall describe it in connection wi the related arts of an adding machine and I have soected for that purpose the machine which is the subject matter of Letters Patent No. 797,032, issued to me August 15, 1905, and I refer to that patent for a particular description of the mechanism not directly involved here.

In the drawing there is shown: in side elevation and (partial vertical section, that portion of an a ding machine embodying my invention. The registering mechanism is not shown but it will be understood that it consits of a bank of keys arranged in denominational series, each key provided with a stem by the depression of which a sto corresponding to the numeral value of tl e ke depressed, is interposed in the path of mo bars as described in the Wales atent above referred to. In the drawing,-t e rack bars are designated 20. .These are each provided with toothed racks 21 on their upper edges and are supported at their front ends upon links 22 suitably pivoted, and at their rear ends upon the extremities of hell crank levers 23 mounted to oscillate upon a shaft 24. The other ends of the bell cranks are pivotally connected to the rinting mechanism. The rack bars 20 are a apted to mesh with pinions 30 with which the numeral wheels 31 are provided. These numeral wheels display the digits in proper order on their edges (not shown) and are all mounted on a common shaft 32, there being one wheel for each denominational series of keys.

It is readily seen, that when the rack bars 20 are moved forward, and the racks are in mesh with the pinions 30 the extent of rotation of the wheels 31 is determined by the extent of the movement of such of the rack bars 20 as are permitted to move by raising steps 25, such movement being governed by the position of the stops above referred to and thrown up by the depression of the keys.

A main shaft 40 is ada ted to vibrate either by a handle manua ly oper ted or from a suitable source of power. his oscillates a sector 41 provided with a leg 42 which, in turn, through a pin 43, moves a train of mechanism whereby the racks 20 are moved and through them movem nt is communicated to the printin mocha 'sm. This latter comprises a series 0 type bars 50 arranged in vertical order on a carrier 51 so that when a rack is moved its type bar is raised untilthe t pe carrying the number corresponding to t e extent of its movement is opposite the point of print. This point of rint is in a fixed horizontal plane and is o posite the shaft 52 of the platen 53 which in turn is mounted upon a carriage 54 ada ted to move laterally in the machine. It w i be understood of course that suitable means are provided to ink the type and propel forward the pa ier and to move the parts in harmony to erl 'orm their functions.

he accumulating mechanism is not shown complete in the drawing. scribed in my former patent above referred it comprises carrying mechanism whereby when a number greater than 9 is accumulated on one numeral wheel it is suitably transferred to the wheel of next higher denomination and zero restorin mechanism, whereby the parts are all re aced in their initial position when the adcing operation has taken place.

The printing mechanism comprises pivoted hammers 90, one for each denominational series, adapted to oscillate on a common bar 91 actuated by individual springs 92 secured at their opposite ends to a common rock bar 93, actuated by mechanism not relevant to the present invention, although we may say that its function is to energize the springs 92. Mechanism is also provided normally to lock the hammers against movement until the time comes for their actuation.

A series of intermediate plungers 94 are arranged o posite the point of print and the function 0 the hammers 90, when released is to strike the plungeis to drive them a ainst the type bar ositioned to receive the b ow and so to rope such type bars against the paper on t e laten so as to print the item registered an accumulated in the other mechanism.

Each hammer is provided with a detent 95 adapted to engage with one of a series of hammer hooks 96 pivoted on a bar 97 suitably located. These hooks are operated by a vertically movable release bar 98 adapted to slide in suitable bearings and are each provided with a tension s ring 99 secured at its opposite end to a fixe point in the machine, with a sto lug 100 placed immediately under the be crank lever 23, and a foot 101 projecting laterally from the bar.

It is obvious that when the bell crank lever 23is oscillated upward it will no lo or be in contact with the stop lug 100 aiid consequently the release bar 98 will move upward under tension of the spring 99. The upper end of the release bar will trip the hammer book 96 to disengage it from the detent 95 and the hammer 90 energized b the spring 92 will strike the plunger 94 as a ove stated.

None of the arts so far described form part of this specific invention.

It is obvious that if the release bar 98 is prevented from moving to strike the hammer 00k 96 when the lever 23 is vibrated, the hammer 90 will not be actuated and the item embodied in the ositioned ty e bars will not be printed. 11 other wor s, if the release bar is prevented from rising, the function of the printing mechanism will be tem- It is fully de-,

the frame of the machine is this key 10 comprising a finger tip and a key stem 11. The atter is slotted at 12 and ada ted to engage with a stop button 13, suita ly located on the frame of the machine. A restoring spring 14 is secured to the key stem and to some other convenient place. At its lower extremity, the stem 11 is ivoted to one end of a bell crank lever 15 a apted to oscillate on a pivot 16. The other end of the lever is provided with a lateral interference bar 17.

here are a series of release bars arranged across the machine one for each denominational series of t pe bars and hammers and each release bar has its lateral foot 101. If the key 10 is depressed it will oscillate the lever 15 and move the bar 17 into the path of the foot 101 and so prevent the release bar from rising to trip the book. The interference bar is made of such a width as to pass across the machine and it is toothed or slotted to pass between the series of release bars. The button 13 serves to hold the key 10 down when it has been depressed, it being normally held undepressed under tension of the restorin spring 14. it shall e restored to its normal position, it

.is moved sli htly forward and away from the button 13 w en it at once springs upward.

What I claim as new is 1. In a machine of the class described, comprising adding mechanism and printing mec anism, the latter, comprising separate ty e, separate means whereby they are indivisually propelled to record their res ective figures separate holding means for t e propelling means and se arate releasing means to permit each prope in means to operate, the combination therewit to suspend temporarily the function 0 the releasing means.

2. In a machine of the class described, com rising adding and printing mechanism, the atter comprising separate type, separate means whereby they are individually propelled to record their respective figures separate holding means for the propelling means, and se arate releasing means to permit each propel 'ng means to operate, the combinationtherewith of means adapted to suspend temporarily the function of the releasing means.

3. In a machine of the class described, comprising a printing mechanism provided with type-bars and movable type, means for positioning the type bars, means by which each type is indivi ually propelled to record its res ective number, separate holding means or the propelling means and separate releasing means to permit each propellin means to operate, the combination therewit When it is desired that of means ada ted of means adapted to prevent the operation of the releasing means and thus prevent the prolpelling means from actuating the type, an a manually depressible key for actuating ireventmg means.

n a machine of the class described comprising a printing mechanism provided with type bars, means for positionin them, hammers for striking such bars, an hooks for holdin the hammers inactive, the combination t erewith of means for preventing the disengagement of the hooks and the hammere.

5. In a machine of the class described, comprising a printing mechanism provided with type bars, means for positioning them, hammers under constant tension and adapted to strike the type bars when released, and hooks forrholdmg the hammers inactive, the combination therewith of means for preventing the disengagement-of the hooks and the hammers.

6. In a machine of the class described, comprising adding and printing-mechanism and means for actuating them, the printing mechanism being provided with t pe bars, plungers for striking the same and hammers adapted to strike the plungers when released, the combination therewith of hooks for holding the hammers inactive until released, means adapted normally to release said hooks automatically when the accumulatin mechanism of the machine is operated, an means for preventing said release.

7. In a machine of the class described, comprising adding and printing mechanism, and means for actuatin them, the printing mechanism bei plungers for stri g the same and hammers adapted to strike the plungers when released, the combination therewith of hooks for holding the hammers inactive until released,

said 4.

provi ed with type bars, P

means adapted normally to release said hooks automatically when the accumulating mechanism of the machine is operated, an means for preventing said release, consisting of a manually operated key.

8. In a machine of the class described, comprising adding and printing mechanism and means for actuating them, the printing mechanism being provided with t pe bars, plungers for striking the same and liammers adapted to strike the plungers when released, the combination therewith of hooks for holding the hammers inactive until released, means adapted normally to release said hooks automatically when the accumulating mechanism of the machine is operated, means for preventing said release consisting of a manually operated key, and means or restoring said key to its initial position after its operation.

9. In a machine of the class described, comprising adding and printing mechanism and means for actuating them, the printing mechanism being provided with t pe bars, plungers for striking the same and ammers adapted to strike the plungers when released, the combination therewith of hooks for holding the hammers inactive until released, means adapted normally to release said hooks automatically when the accumulating mechanism of the machine is operated, an means adapted to hold said releasing means inactive comprising a key adapted to be manually depresse an automatically raised after such depression.

In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAM R. Baum, ALAN MODONNELL.

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