US855207A - Type-writing machine. - Google Patents

Description

7 0 9 1 8 2 Y A M D E T. N E, T A P nm E A P E H S H O TYPE WRITING MACHINE.

APPLICATION FILED JULY 12, 1905.

3 SHEETS-SHEET 1.

INVENTEIR:

WITNEEEES= Hi5 ATTURNEY PATENTED MAY 28, 1907.

0. H. SHEPARD. TYPE WRITING MACHINE.

APPLICATION FILED JULYlZ, 1905. I

3 SHEETBSHEET2.

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, fl/s' Aitorzzey PATENTED MAY 28, 1907.

G. H. SHEPARD. TYPE WRITING ISZIACHIIIE. APPLICATION FILED JULY 12, 1905.

a SHEETS-SHEET a.

lnl enforr H/s A zftozwey UNITED smgrnsrnrnnr OFFICE.

CHARLES H. SHEPARD, OF NEW YORK, N. Y., ASSIGNOR TO WYOKOFF, SEAMANS & BENEDICT, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented May 28, 1907.

Application filed July 12, 1905. Serial No. 269,346.

To all whom it may concern.-

Be it known that I, CHARLES H. SHErARn,

a citizen of the United States, and a resident of the, borough of Brooklyn, city of New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

My invention relates to printing point indicating mechanism for t ewriting machines and one object of the invention is to provide simple and efficient mechanism of the character specified which is automatically actuated at each printing operation to move the indicator from the normal or indicating position to the norind c-ating position.

A further object of myinvention is to provide mechanism of the character specified that can be readily applied to existing forms of typewriting machines without changing the structural features of such machines' To the above and other ends, which will hereinafter ap ear, my invention consists in the features of parts and combinations of dev ces to be hereinafter described and claimed.

In the accompanying drawings, wherein like reference charactersindicate corresponding parts in the various views, Figure 1 is a vertical, central, front-to rear sectional view of sufficient number of typewriting machine to illustrate .myinvention and its application thereto. Fig. 2 is a fragmentary frontelevation of the same.

- Fig. 3 is an enlarged detail vertical sectional view showing the indicator and some of the associated parts. i Fig. 4 is a front elevation of the same; Fig: 5 is an enlarged detail front elevation of the indicator. Fi (Sis-a plan view of the blank from which the indicator is made. i

I have shown my invention appliedto a Monarch machine, though some of the parts are shown in conventional form, but it is to be understood that the invention may be applied to various other forms of typewriting machines. The base 1 of the machine has c'orner posts 2 extending upwardly therefrom and a top plate 3 surmounts the cornerposts and suports a carriage which carries a platen 4' and is adapted to move from side. to side ofthe construction, arrangement of machine.

arts of one form of machine. Key levers 5 are fulcrumed on a fulcrum plate 6 and carry the usual finger keys 7 and restoring springs 8. Each key lever has a sub-lever 9 pivoted thereto at 10 and the lower end portion :of each sub-lever is slotted at 11 for co-operatiori with a fixed fulcrum rod 12 which extends transversely beneath the key levers and is secured at its ends in the base 1 of the machine. The uper end of each sub lever is pivoted at 13 to a orwardly extending link 14 pivoted at 15 to a type bar 16. The various segmentally arranged type bars are pivoted on a pivot wire 17 supported on a type bar segment 18.

Extending transversely beneath the various key levers is a universal bar 19, carried by the universal bar frame 20 pivoted in the base 1 of the machine on a pivotal center indicated at 21 and havin a rearwardly extending arm 22 from which extends an upwardly directed link 23,'the 11 per end' thereof being connected at 24 to a orwardly extendin arm 25 on a dog rocker, the rock sha t 26 of which is pivotedin a fixed bracket. A restoring spring 27 surrounds the rock shaft and is connected at one end thereto, whereas the op osite end of the spring is connected to a ed portion of the The upwardly extendin arm 28 of the dog rocker carries the usual eed do 5 29 which 'co-operate with a feed rack 30 rectly or operatively connected to the carriage, so as to efiec't a step-by-step movement of the carriage during the printing operations. A link 31 is pivoted at its lower end'32 to the arm 22 and its upper end carries a'laterally projecting pin 33 received the machine. The forward end portion of thelever 34 is bifurcated at 37 for the recepnea er a pivot 38 that extends across an opening39 in a depending arm 40 of a ribbon vibrator 41. The vibrator may be of any suitable construction, but in the present instance is shown provided with inwardly bent parallel edge ortions 42 received in guide grooves 43 in t eouter side edges of arms 44 of the fixed ribbon vibrator guide, said-guide being secured in place by screws 45 that connect it to the top plate of the machine. The ribbon vibrator has guide openings 4 6 through which the ribbon 47 is adapted- 420 4 the form of a bell crank 51 of the bellcrank 61 to extend around and to and to be be fed longitudinallyirom bne ribbon spool 48 to the other.

A rinti point indicator 49 is pivoted on screw 50 and is formed from a blank such as that shown in Fig.6 and when bent up into form is of a shape such as that shown in 5. The indicator may be saidto be in the lever, one arm 51 of which extends inwardly to a point forward of and above the ribbon vibrator actuating lever 34. The free end of this arm is pivote at 52 to a depending link 53 which extends freely through an opening inthe forwardly extending'and laterally bent arm 54 on the ribbon vibrator actuating lever. A coiled expansion spring 55'is located above the extension 54 and bears at its lower end against the extension and at its upper end against a collar 56 that is adjustably secured to the link by means of a set screw or otherwise. A

coiled expansion spring 57 surrounds the link below the extension 54 and bears at its upper end against the extension and at its lower end against a collar 58 adjustably secured in place to the link by a set-screw 59. By these means the printing point indicator is connected to the ribbon vibrator actuating lever and each movement of a lever produces a movement of the indicator. The other arm lever carries the indicator. A bend 60 in the indicator between the arms 51 and 61 enables the indicator arm the rear of one of the side arms 44 of the fixed vibrator ide ositioned-intermediate the ri bon and the p aten and intermediate the platen universal bar to be and ribbon vibrator.

arm 61 1s forked or indicating opening The up er end of the bifurcate to provide an .62 which has a width that corresponds substantially to one of the widest characters to be written on the ma chine, as indicated in Fig. 2.

A stop pin 63 extends forwardly from one of the arms 44 and co-operates with the arm 51 on the indicatorto imit the movement thereof from the normal to the non-indicatmg position. Another stop in 64 extends from the ribbon vibrator gui e beneath the arm 51 of the indicator and limits the throw of the indicator in its movement toward-the normal position, as represented in Fig. 2. A depression of the fin er key will cause the epressed, thereby elevating the forward end of the lever 34 to elevatethe vibrator so as to inter ose the ribbon in the path of the ap roac the type bar actuated by t e key depression. This movement of the ribbon vibrator actuating lever 34 likewise moves the printing point indicator, through the spring 55, to the non indicating position shown in Fig. 4, so that the indicator ismovedaway from the printing point as the typei'approaches the -printing position. When the pressure on the L ed vi r'ator guide by a headed PIVOU Flg.

the printing point indicator, or

tion between the arts,

ng type of tion of a print ng'pomt indicator,

finger key is released, the forward end of the lever 34 will move downwardly, thereby carrying the ribbon vibratordownward to. normal position and the same movement will, through the spring 57, restore the printing point indicator to the normal or indicating position. By employing the lost. motion connection between the ribbon vibrator lever 34 and the indicator I amenabled to compen sate for any change in the throw of the lever or any inaccuracy in the timing of the parts. Thus, for instance, in the lever 34 is given adifferential throw automatically from the normal position during different periods in the longitudinal feed thereof by a cam 65 moving the pin33 different distances from the fulcrum 35'of the le. ver 34 in order to efiect an automatic transverse feed to the ribbon. This mechanism is illustrated in the patent to Jacob Felbel & Carl Gabrielson, dated June 24th, 190-2, No. 763,339. It will be understood that bythe use of the springs 55 and 57 foreffecting a connection between the vibrator lever and the use of lost motion connec- I am enabled" to effec-tively actuate t e indicator when a difierential mechanism, such as that shown in the above mentioned patent, is employed-without altering the printing oint indicator or affecting the operation tereofj In other.

what 'I have termed a words, the printingpoint indicator will "be' moved a given extent to and from the indieating position and will belimited in these 16 movements by the sto s 64 and 63 and will always be in register with the printing point in the normal position of the indicator, irrespective of the extent'of movement given to t e vibrator actuating lever vibrator. v

The stop 63 may be eliminated without 5 materially altering the operation of the -dcvice as it is immaterial how far-the indicator is moved awayfrom the indicating position, I

but it is essential that the, indicator should always be arrested at the same point in its return movement to the indicating osition.

Various changes in detail may e made without departingfrom the spirit of my in- 5 vention.

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine,

the combination of a ribbonvibrator, a printing point in- 1 =9- angle lever dicator that is in thejformof an and is movable independently of the vibrator, and an automatically actuated lever that actuates saidvibrator and indicator.

2. In a typewriting machine, the combina- 51 an independently movable ribbon vibrator, and a spring which constitutes an operative con-'- nection between said vibrator and indicator;

he combma- 3 3. In a typewriting machin the Monarch machine,

or the ribbon 5 tion of a ribbon vibrator, means for automatically actu'ating'said vibrator, an indi-n .cator, and a spring between said vibrator ac- .indicator.

tuating means and the indicator.

'4. In a typewriting machine, the combina tion of an automatically actuated ribbon 'vibrator, a printing point indicator, and a lost motion connection between the vibrator and q '5 In a typewriti'ng machine,the combina tion of an automatically actuated ribbon .vi'

Q brator, a printing point indicators'eparate being operativ'elv-connected to said operating from but connected to said vibrator so as to be actuated when the vibr'ator is moved and toafiord a movement of the vibrator independently of said indicator; v

- 6. In a typewriting machine, the combina tion of a ribbon vibrator, an automatically actuated lever for operatingsaidvibrator' at each printing operation a'n'd'a printin pointindic'ator in the form;of a'bell-cr'ank 6%- angle lever pivoted to a fixed portion of the machine,'o'ne arm of said bellcra'nk le'ver constitutinga pointenadapted to register with the' Prlfiting P he other arm f said lever lever. p 7

In ty w t ng machine, the oombina;

tion oi a r bbon vibrator, an automatically 3 actuated lever for operating said vibrator at each printingoperation,- a printing point indicator in the form ofa bell crank or angle lever pivoted to afixed portion of the machineand-one arm of which constitutes a pointer adapted to register with the printing point, and a spring between the other arm of said angle lever andthe'automatically operated lever for the'v'ibrator.

8. In a typewriting machine, the combination of a ribbon vibrator, a device for actuating said vibrator, a. printing point indi cator, and a spring interposed between said device foractuating the vibrator and said indicator and through which motion is transv 'mitted from the vibrator actuating device to said indicator.

tion of. a printing point indicator having an opening therein that corresponds substantially in size 'toa character to be written by the m hine, means for normally maintaining the in icator in osition where the said openl regis'ter with the printing 1 point, and means for automatically movingsaid indicator avvay' from the printing'point mg therein wil at each printing operation.

10. In a typewriting machine, the combi- 9. In a typewriting machine, the'combinanation of a ribbon vibrator, means for automatically actuating said vibrator, means,

for eflecting a variable throw of said-vibrator, an independent printing pointindicator,

and means for effecting a given extent of imovement to the indicator from the means for automatically actuatin the vibrator.

. Signed at-the borough oi 1\ianhattan, city of New York, in the county of New York, and

State of New York, this ,lOth day ofJuly,

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