US1346115A - carhart and s - Google Patents

Description

L. P. CAR'HART AND S. SHAUGHNESSY. um; INDlCATING DEVICE ron TYPEWRITERS. APPLICATION FILED APR. 18. I917.

1,346, 1 1 5. Patented J uly 13, 1920 2 SHEEIS-SNEEI 1.

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LINE INDICATING DEVICE FOR TYPEWRITERS.

APPLICATION FILED APR. m. 19H.

1,346,115. Patented July 13,1920.

2 SHEElS-SHEEI 2.

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W AFTORNEV UNITED STATES PATENT OFFICE.

LINDEN PETER CARHART, OF BROOKLYN, NEW YORK, AND SARA SHAUGHNESSY,

OF JERSEY CITY,

NEW JERSEY.

LIINE-INDICA'I'ING DEVICE FOR TYPEWRITEBS.

Specification of Letters Patent.

Patented July 13, 1920.

Application filed April 18, 1817. Serial No. 162,855.

To all whom it may concern:

Be it known that we, LINDEN PETER CAR- rrarrr and SARA SHAUGHNESSY, citizens of the United States, and residents of the borough of Brookl n, county of Kings, city and State of New ork, and count of Hudson, city of Jersey City, State of ew Jersey, respectivel have invented certain new and useful improvements in Line-Indicating Devices for Typewriters, of which the followin is a specification.

he device which we are about to describe is intended as an attachment for typewriters for the sole purpose ofindicating by number, the written lines. upon a sheet.

As the device is an attachment it is, not necessary to modify or change the construction ofthe typewriter or in any way modify or change the operation of the machine.

The presence of the indicator may be unknown to the operator, and the ordinary operation of the machine will cause the indicator to operate automatically, and without special attentionbeing given thereto.

When writing long pages, and articularly pages of legalmatter where it. is sometimes desirable 'that the lines or foliosbe numbered so that reference may. made to them, our device demonstrates its greatest utility and importance. the writing rogresses the device will indicate the num er of lines of writing on the page as they are, produced and a corresponding.

number placed adjacenta line will indicate the number of the line.v

As the device is automatic in operation it may be used on or employed with any typewriter, and even though attached may not be referred to if its useis not desired.

The construction andjmethod of operation of two forms of our invention will be fully described as the specification progresses.

The following is what we consider a good means for carrying out our invention and the accompanying drawings should befreferred to for a complete imderstanding the description which fo'l lows.

In the drawings T Figure 1 shows a view in side elevation, part1 in section, a portion of the casing of this evice being removed to disclose the interior mechanism.

Fig. 1' is an end elevation of the lever, and

, support therefor.

be readily Fig. 2 is an elevation and partial section of a different form of device.

Fig. 3.is a sectional view of the device shown in Fig. 2.

Fi 4 shows the device shown in Fig. 1, attac ed to an ordinary typewriter.

Similar referencenumerals indicate like parts in all of the figures where they appear.

The casi for our indicator is formed in 2 parts, and is provided with suitable projectrons, and chambers or recesses. A portion of the casing shownin Fig. 1 is indicated at 1. This portion, indicated at 1, may be considered as half of the casing, and as certain of theparts in the casing are cylindrical, it is obvious that the other half of the casing must be provided with theother half of a chamber 2, for the reception of the numbermg mechanism, a chamber 3 for thereception of the spring andshaft, and chamber or recess 4 for the reception of parts to be later described. 'At 5, in .Fig. 5 we show the other half ofthe noted that this portion 5is' provided with an arm 6,'having a T shaped extension 7 perforated, and provided to receive securingscrews Sand 9, already writer of the class shown in Fig; 5. 5

Extending through the ch her. 4', and into the chamber 2, is a shaft;10,and. upon the right end of which is secured a wheel 11, carrying a series of numerals 12. i The numorals, as in ordinal? indicating devices, will probabl extend rofn 0' to 9,-inclusive.-

This whee 1 1. has a one in ten connection of any well known-type with a second wheel 15 freely surrounding theshaft. 10, whereby the wheel 15 is advanced one-tenth of a 'revolution at ever complete revolution? of the wheel 11. This second -wheel15 also carries a series of numbers from 0 to 59: inclusive. I have not deemeda' detail the connection -cas'ing,'and it will bet necessary .to describe in betweenthe wheels- 111 and 15 smce the method of makingsuch onefoundupon a typenumber 24 is shown.

The shaft 10 extends, by two enlargements 21 and 22, exterior to the casing 2, and upon this shaft we arrange a knurled tlum ble 23, having an extension 24, provided with .recesses '25, adapted to receive a spring operated pin 26. The inner end of the reduced portion 24 of the thimble 23 is provided with ratchet teeth 27., which engage ratchet teeth 28 on the pinion 17.

A pin or srrew 29 passes through a recess 30, in the thimble 23, and into the largest portion 22 of the shaft 10.

At right angles to the shaft 10 is :1 sm nd shaft 31, provided with a crank lever 32, and secured to this shaft 31 is a crown ear 19, previously referred to. This shaft 31 is capable of a partial revolution only, and when so partially revolved is returned to its normal position by a spring 33 shown socured to the she-ft 31, and to the casing 1.

Now let us consider the operation of this device, and inthe description of the opera; tion we will refer to the reference characters thus far employed Our device is attached to a typewriter when fully assembled by the means shown in Fig. 5, and the crank 34, of the lever 32 is arranged in position to be met bythe shiftlever'35 of'a typewriter;

Consider that the 23rd line has been written as shown in Fig. 5. The l'e'ver 3 is moved to the right to advance the platen and'shift the carriage. the crank 34, also rotates; the shaft 31', moving the Wheel 1-1 through the crown gear 19. thepinion 17, the thirnble 23-24, and shaft -21-22, advancing the wheel. 11 until the Thelever 35 beingreleased, thelever 32 and crank 34 are returned to their normal position by the spring 33, and when the next line is completed the same operation is repeated.

When it is desired to reset the indicator, as when a new sheet is inserted, the thimble 23'is first pulled'outwardly to disengage the teeth 27 and 28, the pin 26 riding up the inclined inner ends of the recesses and.

engaging the the part 21,

'Dhe thirnble may now be rotated without impartingmotion to the crown gear but by reason'of the in 29 engaging in slot rotation will be imparted to shaft 10 andthe numberwheels are rotated backward until the-proper number is displayed through the aperture 36 in the casing 5.

Should it be desired 'at any time that this device be so conditioned, that it should not indicate the lines or operate in any manner, the thimble 23 is withdrawn until the pin 26 has left the apertures 25. At, this time the teeth 27 and 28 will be disenga ed by the teeth 27 being drawn away from the teeth 28 and the device will not operate. The pin 26 engaging in any one of the teeth 25 retains smooth adj aeent. surfaces of This lever engaging the device in the operable position shown in Fig. 1.

As shown in Fig. 1, we have provided: a stop 1', which checks the movement of the lever 32, and prevents it from being intcn tional l-y or accidentally rotated more than the extent desired.

The device shown in Figs. 2 and 3 and the modification shown in Fig. 4 are of a somewhat different construction. The principal difference resides in the shape and in the mechanical changes necessary with the change of design.

The casing 40 is a dished casin" having a central promotion, and within tins casing we arrange a plurality of disks] The disk 41 carries the unit fi'gi'ue s, and is hollowed out at the center portion, and pro vided with an extension 42,'by"m1eans of which the disk is supported u on a: projection 43, from the casing 40. he'di'sk 41 is free to be moved or rotated upon the exten sion 43, and termed upon the dish 41, or attached'thereto is a ratchet wheel 44, provided with a number ofteeth e ual to the number of units or figures'upon t e'disk.

Surrounded"and' supported upon a suitable portion of-the disk 41 is a second disk or ring 45, havinga proj ecting'lever 46, and a sprin 47, connected withthefdisk or ring l5, ten s'to returner retain the lever 46 to. the position shown in ig'. 2 by rotatingthe ringfifi in'a reverse direction,

Bivotal'ly mounted"iipon the lever 46' is' an operating do 48 wlneh'is urged inward y spr ngs it'wh n' he s .6 J snv f hnwn' a Prawn f om th casing 40 movesth'e dpgoutwardfagainst the interior portion, of the. casing, the position shown in 'j A springl'operated dog 51 serve s' as a do: tent, the teeth of the ratchet wheel 44, and preventing a backward frnovement thereof untilthedetent' 51 is disen aged. A movable and pivotal'ly Q su ported dog or abutment 52 is so arrange that it may be causedto engage theprogeetion to prevent an operation offth'e evice when its use is not des red. a i

The transfer mechanism which we employ is such as is eomrnon'tospeedozneters and numberin machines; The disk 41. is rovided 'wi an inwai dfproiection 53,".w iioh engages and rotates a 'smail gear 54, which gear in fi1r n.o crates the second number carrglng wheel 5' in a manner well under- $000 Any suitable and, properly timed mechanism may be employed to obtain an o eration of t e second, number carrying disk 55 from the disk 41.

The operation of this device is.very similar to the operation of the device shown in Fig 1.

he lever 46 is arranged, in the path of the shift lever 35, of an ordinary typewriter, and when this lever 35 is moved, the lever 46 is also moved. The movement of the lever 46 causes the dog 48 to engage one of the teeth on the ratchet wheel 44, carries it forward and causes one-tenth of a revolution of the disk 41. When 10 movements or one complete revolution of the disk 41 has been accomplished the disk 55 will be moved one unit by means of the gear When the shift lever 35 is released after each movement of the carriage and platen, the lever 46 will be returned by the spring 47 to its normal position, and the dog l8 will be disengaged from the teeth 44. The detent 51 will however prevent a return movement of the disk 41.

When a maximum movement of the disk 55 has been accomplished, a stop 56 on the disk 55, engaging a stop 57 formed on a suitable portion of a casing will prevent a further movement of the indicating device, at which time the detent 51 should be disengaged, and the larger spiral spring 58, which has been slowly wound up by the movement of the disks will rotate the disks backward until the 0 point is reached on both disks, and the stops 56 and 57 engage one upon the other Whereafter the operation may continue as before.

Having carefully and fully described our invention what we claim and desire to secure by Letters Patent is 1. A device of the character described comprising a shaft adapted to operate an indicator, a gear loose upon said shaft, a sleeve slidably but non-rotatably mounted upon said shaft and having at one end a ratchet face adapted to engage a ratchet face on the said gear, said sleeve having its periphery formed with a series of notches, a pin yieldingly engaging in said notches and means for rotating said gear.

2. A device of the character described comprising a shaft adapted to operate an indicator, a gear loose upon said shaft, a sleeve slidably but nonrotatably mounted upon said shaft and having at one end a ratchet face adapted to engage a ratchet face on the said gear, said sleeve having its periphery formed with a series of notches,a pin yieldingly engaging in said notches, said notches having inclined ends to permit of automatic displacement of the pin therefrom when the sleeve is moved away from the gear and means for rotating said gear.

3. A device of the character described comprising a shaft adapted to operate an indicator, a gear loose upon said shaft, a sleeve mounted to slide upon and rotate with said shaft, said sleeve adapted to be moved into and out of engagement with said gear and means retaining said sleeve against backward rotation when engaged with said gear, said means being automatically displaceable upon movement of the sleeve away from the gear.

Signed at the county of New York, State of New York, this 3d day of April, 1917.

LINDEN PETER CAR-HART. SARA SHAUGHNESSY.

\Vitnesses:

G. E. S. MARK, ARTHUR PHELPS MARK.

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