US979731A - Type-writing machine. - Google Patents

Description

W. J. BARRON. TYPE WRITING MAUHINE.

APPLIOATIOII FILED BEPT. 30, 1009.

Patented Dec. 27, 1910.

3 BHEBTB-BHEET 1.

HISATTURNEY WITNEESES= W. J. BARRON. TYPE WRITING MACHINE.

APPLIOATION I'ILED SEPT. 30, 1009.

Patented Dec. 27, 1910.

3 SHEETS-SHEET 2.

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WITNEEISE'E:

HISATTURNEY W. J. BARRON. TYPE WRITING MAGHINE.

APPLIOATIOH 151mm SEPT. a0, 1900.

Patented. Dec. 27, 1910.

3 EIHEETB-BHEBT 3.

WIT-N55555:

INVENTEIRH HISATTEIRNEY nnrtrnnsrarns WENT OFFICE.

WALTER J. BARRON, OF NEW YORK, N. Y., ASSIGNOR TO UNION 'IYPEXVRITER COIVL PANY, 0F JERSEY CITY, NEW JERSEY, A. CORPORATION OF NEW JERSEY.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Dec. 27. 1910.

Application as September so, was. Serial No. 520,321.

in the county of Kings and State of New York, have invented certain new and useful Improvements in 'lype-Nriting Machines, of the following is a specification.

My invention relates to typewriting machines and more particularly to means for returning the printing instrumentalities to normal position.

A common difliculty encountered in typewriting machines is to have the type bars or their actuating means stick in their movements from the printing position the restoring springs being at times insutlicient to return the parts to normal position when the type bars stick. This so-called 'sticking of the type bars in some instances is due to the type bars colliding or jamming together one type bar on its way to the printing point meets another one returning to normal osition. Insome instances the type bars stick in the type guide and in other cases the bearings for the type bars are so snug that the bars will not move with suflicient freedom to prevent them from sticking occasionally and to prevent them from returning to normal position in the operation of the machine. It is essential that the bearings be sntliciently snug to preserve alinement and it is often difficult to preserve al'inemnt and yet render the movements of the bars sufficiently free in their hearings to enable them to return from nor mal position with suflicient freedom. Ordi-- naril the operator has to take hold of the sticking bar or bars and move them by hand back to normal position. This results in the loss .of much time and in soiling the hands of the operator.

- The object of my invention generally stated is to overcome certain of the disadvantages pointed out above and topicvide simple and efficient means by which the sticking are or type carriers and their actuating means 'may be readily restored to normal position.

To the above and other ends which will hereinafter appear. my invention consists in the features of construction, arrangements of parts and combinations of devices to be hereinafter described and particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicate corresponding parts in the various views, Figure 1 1s a vertical, front to rear, sectional view of sufficient number of parts of one form of typewriting machine to show my invention in its embodiment therein. Fig. 2 is a vertical, transverse, sectional View of the same taken on the line of Fig. 1 and looking in the direction of the arrow at said line. Fig. 3 is a diagrammatic side elevation of sufficient number of parts of a Yost visible machine to show another form of my.

invention in its embodiment therein. Fig. 4 is a fragmentary front elevation showing some of the parts illustrated in Fig. 3. Fig. 5 is an enlarged detail fragmentary side View partly in section of the type carrying end of a type bar used in the construction shown in Figs. 3 and 4. Fig. (3 is a. detail face view of the type-block carryingspring shown in Figs. 3 and 5.

While I have shown in invention in the present instance embodiec in two different forms of front-strike machines, it should be understood that the invention may be employed in various styles of machines.

Referring first more particularly to Figs. 1 and. 2, it will be seen that the frame of the machine comprises a base 1,corner posts 2 and a topplate 3. A carriage (not shown) supports a cylindrical rotative platen 4 that 13 adapted to travel across the top plate from side to side of the machine. A series of segmentally arranged upwardly and rearwardly striking type bars 5 are mounted on type bar hangers 6 secured to a. type bar segment 7. The type barsare actuated by pull links 8 connected at their forward ends to angular levers 9 pivoted at 10 to hangers detacliably fixed to a supporting segment 11. The forwardly extending arm of each angular lever 9 is connected to a pull link 12 which is inclined downwardly and forwardly where it makes connection at 13 with an upwardly extending arm 14 of a key lever 15. The key lovers are fulcrumed on a plate 16 secured to the base of the machine by screws 17. The key lovers are provided with the usual finger keys 18 by which the type actions are operated. The parts of each type actionare ordinarily restored to normal potype bars will, for various reasons liereinbej fore stated, be prevented from being restored to normal position by the ordinary means employed for that purpose.

It is the object of the pres-c1 it invention to provide auxiliary positively acting means for restoring the type bars and their actuatin means to normal position. To this end Iiave provided in the construction shown in Figs. 1 and 2, a rock shaft 19 which is tudinal movement of the rock shaft in its bearing openings. The rock shaft 19 is arranged above the key levers 15 and the arms 22 are situated at the sides of the system of key levers and extend below the same, where they are connected by a cross bar or retractor 25 which extends beneath the key levers. A stop in 26 extends from one side of the 'machme into the path of the arm or finger piece 20 in order to limit the rearward movev ment of said arm.

From an inspection of Pi 1 it will he seen that the arms 22 exten downwardly and rearwardly from the rock shaft 19 and the weight of thearms and the cross bar 25 may be employed to normally maintain the cross bar '25 in the position shown in Fig. 2. H desired a suitable spring may be employed to eh ect the movement oi the bar 25 and the parts connectedthereiwith' to normal position. If a type bar or any of its actuatingconnections should stick to prevent the returnotthe partsto normal position by the restoring sprin 18, then a forward pull on the finger piece 29 would be effective to elevate the-her 25, thus forcing the depressed key lover or levers upwardly; lit

will he seonthat the construction and arrangement of the parts of each type action .mench that an upward movement efiected hy the loci 25 on the key lever is efiective to reswre the key lever and the parts controlled thereby to normal position. It will also be seen that the har 25.is efiective to co-' oerate with any or all of the keg levers 'wich may be maintained depresse by the sticking of the parts before the type bars are restored to normal position, and that although this bar 25' and the means for controlling it are independent of the' type actions, the car nevertheless e06 erates with the'ty-pe actions and is operah e at will to restore any-oi them to normal position in the event or anyoi the or a type action striking hetero its type her is returned to'a.

eve,7e1

position of rest in the type basket. Moreover, it will he understood that normally the bar 25 is maintained below the normal extent of dip of the key levers and. is normally maintained out of a cooperation with the type actions although it is at all times in a position where it may readily be brought into cooperation with the type actions. The use of this device adds nothing to the weight of the type actions and the device is only employed in the event ofa type bar, or the actuating means therefor, failing to return to normal position during the ordinary operation of the machine.

So far as I am aware I am the first to have provided means for positively restoring the type carrier to normal position in the event of it sticking before the carrier returns to normal position, and I wish to be understood as claiming such a constructionbroadly.

I am aware that various modifications may be made without departing from my invention, and that it is unnecessary to have the restoring means act on the actuating means for t e type carrier. If rlesiredfit may act directly on the type carrier.

In Figs. 3 we inclusive l have shown a modified form of construction in which the retractor or the device whereby the type actions are restored to normal position, coact directly with the type hare. in this construction l have illustrated the invention embodied in a Zest visible machinathe type action shown in F' 3 being: essentially same'as that emho led ini aid cept for the manner or ($31.15 block. In this constructionthe key levers 27 are pivoted at 28 to the frame of the machine and are each connected Toy a link 29 with an angular lever, 30 which in turn is connected to the forward end of a pull link 31 connected at its rear end with a driver 32 pivoted at 33 to a hanger which is secured to a type loar segment 3a. The driver 32 is pivoted at 35 to the type har proper 36 which has one cncl thereof pivoted at 37 130 one end. or" a uide link 38, the opposits end of said gui e link hoine pivoted at 39 to a fixed part of the machihe. The

machine ex;

mg the type driver extends beyond this pivot and at the last portion of the printing stroke coil erates with the ty e bar proper as shown ig. 3.

An ink pa. i0 is supported by the ty e her segment and the type faces 41 normal rest against this pad, it being understoo that Fig. 3 illustrates the type her in printing position. v has a hole 42 extending therethrough to re- ;ceive the stem &3. of a type hlock 44. A.

leaf spring i5 is secured st ll? to the type her proper and is connected at its free end by a rivet at? or otherwise with the stem 43 of the type hloch onthe op osite side of the type bar has; that at whi the type lolock The free end or each t me bar arms 53 and 49- in the position shown in Fig.

type face from contactwith the work sheet a printing movement ofthe type bar.

of the fixed type guide 48 and is recessed type bar after the latter .is arrested, the

is situated. The pressure of this spring is normally exerted to maintain the type b ock in a position such as that indicated in Fig. 5.

It will be understood that the type bars of the system are segmentally arranged and strike upwardly and rearwardly against the front face of the platen 4. As the type bar approaches the printin position its type block is received in a fired type guide 48 secured to the top plate 3 of the machine. The retractor comprises an arm 49 mounted on a rock shaft 50 adapted to turn in bearings 51 and 52 secured to the top plate of the machine. The outer end of the rock shaft is provided with an arm 53 which extends forwardly to the front part of the machine and terminates in a finger piece 54-. The arm 53 is secured to the rock shaft 50 by a pin 55 or by any other suitable means. A coiled spring'56 surrounds the rock shaft near the outer end thereof and is connected at one end to the arm 53 and at its opposite end to the fixed bearing 52. This spring exerts a pressure to normally maintain the 3. The arm 53 is situated directly in front at its upper en as indicated at 57, the recess registering with the Opening 58 in the type guide. A segmental buffer 59 of felt, leather or other suitable material is secured to the front face of the arm 49 so that it is interposed in the path of each of the type bars as they approach the printing position. The relation of the parts is such that the free end portion of the type bar roper 36 will contact with the buffer 59 be ore a type face on the bar reaches the platen or the paper thereon. The momentum of the arts, however, is sufiicient to cause the type lock and its stem to-gmove independently of the movement of theblockbing effected against the pressure of the spring-45 which connects the type block with the type bar. This independent movement or overthrow of the type block carries a type-face on the block against the work sheet and efiects an imprint, the spring 45 and the force of the blow against the platen, withdrawing the as soon as the imprinthas been effected. The arm 4-9 at this time bears against the fixed type guide to arrest the rearward movement of the arm 49 and thus resists or limits the The type guide therefore constitutes a stop which llmits the movement of the arm 49 and the parts connected thereto to normal position, the spring 56 holding the parts normally in this position. Should the type bar stick in tl type guide it is merely necessary to depress the finger piece 54 and this movement effects a forward movement of the arm 49 through the interposed rock shaft 50 which turn movement of the bar 36 causes a corrcspending return movement ofthe parts for actuating the type bar. A restoring spring 60 is connected at one end to the link 31 and at its opposite end to the driver 32, this restoring spring being effective ordinarily to restore the parts to normal position. An actuation of the retractor through the finger icce 54 is necessary only where the restoring spring 60 is ineffective to disengage the type block from its guide or to return the parts to normal position. The buffer 59 and the arm 49 which carries it, in addition to forming a part of the retractor, constitute means for arresting the type bars before the types reach the platen as hereinbefore pointed out so that the imprint is effected by an overthrow of the type block. This means enables the type faces to be uickly withdrawn from the face of the platen, or the work sheet thereon, to prevent double imprints or ghosts being produced. Moreover, the construction is such that a practically noiseless type action is provided and one in which a substantially uniform imprint is efiected at all times, irrespective of the force appliedto-the printing keys.

It will be understood that in both forms of the construction shown I have provided mechanical means auxiliary to and separate from the type action for restoring the type bars to normal position; that said means are out of operation during the printing movements of each of the type actions; and that said means are nevertheless operable at will independently of printing operations to positively restore each ty e bar, and the parts by which it is actuate to normal position, in the event of the failure of the ordinary means such as the restoring springs 18 and 60 to effect such result.

Features of the construction disclosed in Figs. 3 to 6 inclusive which are not specifically claimed herein will he made the subject-matter of a sep'arate application.

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

1. In a typewriting machine, the combination of a type action, including a type carrier, the usual means whereby the type carrier is restored to normal position after each printing operation, and means for actuating said type carrier; and auxiliary mechanical means operable at will indcpenth ently of printin operations to return the type carrier to normal position in the event of it sticking before it is restored to normal position by the usual means employed for this pit-pose.

. .2. a typewriting machine, the combination of a type action including a type car- 'rier, the usual means whereby the type carno i ,return the type carrier and its actuating ineans to normal position in the event of the parts sticking before they are restoredto normal positlon by the "usual means employed for this purpose.

3; In a typewriting machine, the combination of a series of type actions including a series of type carriers and the usual means whereby each of said carriers is re stored to normal position after each printing operation; and auxiliary mechanical means operable independently of printing operations to return to normal position any of said type carriers which may stick before it is restored to normal position. by the usual means employed for this purpose.

4:- In a typewriting machine, the combination of a series of type actions including a series of type carriers and the usual means whereby each of said carriers is restored to normal position after each printing operation; and auxiliary mechanical means operable at will independently of printing operations to return to normal position all of said type carriers which may stickbefore they are restored to normal position by the usual means employed for this purpose.

5. In a typewriting-machine, the combination of a series of type actions including a series of type carriers, and the usual means whereby eachoii said carriers is restored to normal position after each printing opera tion, key actuated means for operating said type carriers} and positively acting auxiliary mechanical means operable at will to return any of said type carriers and its actuating connections to normal position which may stick before the type carrier is restored to normal position by the usual means employed for this purpose.

6. In a typewriting machine, the combination of a type, a key, intermediate con nections between said key and type, and hand actuated positively acting auxiliary mechanical means operable at will on said connections to restore them and the type bar to normal position in the event or the parts failing to be restored to normal position' in the actuation thereof.

7. In a typewriting machine, the combination of a series of types, a series of finger keys, intermediate connections between each finger key and its type, a series of restoring springs, and means independent of said re storing springs and operable at will on said connections of any type \to restore said connections and the type to normal position in the ev'ent of the parts failing to be restored to normal position, in 'the actuation thereof.

8. The combination with a type action, of

auxiliary mechanical means separate from the type action and under separate key control for restoring the parts of the type ac tion to normal osition in the event of the parts failing to 2*. restored to such position by the ordinary means employed for that purpose.

9. The combination with a type action, of mechanical positively acting means separate from the type action and operative at will thereon to move the parts of the type action back to normal position in the event of them sticking before the parts are restored tonormal position by the ordinary means employed for that purpose.

10. The combination with a series of type actions, of mechanical means separate from but coiiperative at will with all of said type actions to move back tonormal position any or all type actions which may happen to, stick in the operated position, said means being out of operation during printing operatlons.

11. In a typewriting machine, the combination of a series or types, a series of key actuated members for actuating said types, and a hand actuated bar cotiperative with said key actuated members to positively move them back to normal position.

12. In a typewriting machine, the combination of a series of type bars, a series of key levers, intermediate actuating connections between said type bars and key levers, a release bar coiperative with said key levers, and hand actuated means for actuating said: release bar to positively move the key levers back to normal position.

18. In a typewriting machine, the combination of a series of type bars, a series of key levers, intermediate actuating connections between said type bars and key levers, a re- 5:

lease bar pivoted to swin beneath the key levers and cooperative with the key levers to move themto normal position, and hand actuated means for swinging said release bar.

1 In a typewriting machine, the combi- 1 0 nation of a series of type bars, a series of key levers, intermediate actuating coimections between said type bars and key levers, a release bar coiiperative with said key levers, a

rock shaft which carries said release bar, and

a finger piece connected to said rock shaft to turn it and thus restore the key. levers'to normal position.

15. In a typewriting machine, the combination of a type bar, a key lever, a restoringspring, intermediate connections .between' j said key lever and type bar-,sa'nd connectwns being such that a downward movement on the key lever moves the type bar to the printing position and an upward movement on 12: the key lever moves the type .barto normal. position, and hand Efihiihhfi means separate from the key lever and restoring spring and operable at will to move the key lever up tuated bar separate from the key levers and wardly and thus restore it and the parts con trolled thereby to operative position.

16. In a typewriting machine, the combination of a series of type bars, a seriesflof key levers, intermediate connections between said key levers and ty e bars, said connections being such that a ownwarcl movement on a key lever moves the associated type bar to the printing position and an u ward movement on a key lever moves t e associated type bar to normal position, and a hand acoperable at will to move the key levers upwardly and thus restore them and the parts 15 controlled thereby to operative position.

, Signed at Hinghamin the county of Plymouth and State of Mass. this 28th day of Sept. A. D. 1909.

WALTER J. BARRON.

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