US1310832A - Planoqrapii co - Google Patents

Description

W. S. IRELAND AND W. E. LIPPERT. TYPE WRITING MACHINE.

APPLICATION FILED NOV. 18. l9l6- 4 SHEETS-SHEET I.

I I 72% W rm? COLUMBIA PLANOGFMP" 60., WAsHINd'loN, D. c.

W. S. IRELAND AND W. E. LIPPERT. TYPE WRITING MACHINE.

APPLICATION flLED NOV. 8. 1916 1,310,832.

Patented July 22, 1919 4SHEETS-SHEET 2f v WtLLi part 3? Y W THE COLUMBiA PLANDGRAPH 50., WASHINGTON, D. c.

W. S. IRELAND AND W. E. LIPPERT. TYPE WRITING MACHINE 1,310,832. APPLICATION FILED NOV. I8, I916- Patented 22,

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TYPE wmmm MACHINE.

1,310,832. APPLICATIO-N FILED NOV. I8, I916- 4 SHEET.SSHEET 4.

W. 5, lreland .E. Llppert unrrnn srnrns PATENT onnicn.

WARD s. IRELAND, on ST. LOUIS, MISSOURI, AND WALTER. n. LIPPERT, OIEYCINCINNA'I'I,

OHIO, ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, TO NATIONAL SHORT- HAND MACHINE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION WARE.

TYPE-WRITING- MAGHINE.

Specification of Letters Patent.

Application filed November 18, 1916. Serial No. 132,078.

To all whom it may concern:

Be it known that we, WARD S. IRELAND and WALTER E. LIPPERT, citizens of the United States of America, residents, respectively, of the city of St. Louis, State of Missouri, and of Cincinnati, in the county of Hamilton, State of Ohio, have invented certain new and useful Improvements in Type- Writing Machines, of which the following is a full, clear, and exact description, reference being had to the accompanyingdrawings, forming a part of this specification.

. Our invention relates to improvements in typewriting machines, and the novel features of the invention are particularly adapted for use in shorthand machines. One of the objects of the invention is to produce a very strong universal bar, or universal frame, having its elements so constructed and arrangedthat it is well adapted to transmitenergy from finger keys to feeding devices, without being bent, distorted or otherwise-impaired by the stresses to which it is subjected in service. To produce a light and simple universal bar, or frame, possessinga very high degree of strength, wepreferably-c'onnectcertain parts of the device by means of braces which reinforce the structure very materially, and at'the same time perform other functions, as will be hereinafter described. v i

A further object of the invention is to produce an improved means for guiding universal bar, or frame. y

With the foregoing and other objects in view the invention comprises the novel construction, combination and arrangement of parts hereinafter more specifically described and illustrated in the accompanying draw ings wherein is shown the preferred embodiment of the invention; however, it is to be understood that the invention comprehends changes, variations and modifications which come within the scope of the claims hereuntoappended. v I

' Figure I is a plan view, partly in section, illustrating the shorthand machine embodying the features of our invention.

Fig. II is a longitudinal section of the machine shown in Fig. I. H V i Fig. III 's a fragmentary view showing the printing and paper feeding devices.

Fig. IV is a transverse section showing the universal bar or frame, the key levers for actuating said bar or frame, and the versal bar, showing the means for trans.

mitting movement to the ribbon feeding device and paper feeding device.

Fig. VIII is a perspective view of the universal bar, one of the key levers being shown by dotted lines. I I

To illustrate the preferred form of themvention, we have shown a shorthand machine provided with a housing 1, a type holder 2 arranged in said housing (Figs. I, II and III), a type bar 3 secured in said type holder, and an inking ribbon 4: adjacent to the line of type on said type bar 3. The paper passes from a supply roll A, over a roller 5 (Fig. II) under and partially around a roller 5, in front of and over a roller 6, and then to a paper feeding de vice whereby it is unwound from the roll and fed through an opening at the rear of the machine.

Thekey actuated devices preferably include a series of angular levers each having an upwardlyextending arm 8 at its front end (Fig. II) and a character key 9 at the upper end of said arm. Any suitable shorthand code may be used, and, if desired, the keys may be provided with characters corresponding to the line of type characters on the type bar 3. Each key lever has an arm 10 extending rearwardly from its arm 8, and an arm 11 extending upwardly from the rear portion of said arm 10. The series of key levers is pivotally supported by a pivot member 12 located at the junctions of the lever arms 10 and 11. The upper end of each leverarm 11 is provided with a forwardly extending printing hammer 13 which lies adjacent to the type 3', as shown most clearly in. Fig. II. Restoring springs 14 (Fig. II) tend to retain the key levers in engagement with an abutment 15.

When one of the finger keys 9 is depressed, the key lever associated therewith turns or DELA- about the axis of pivot member 12 and a printing hammer 13 moves toward the type 3, thereby forcing the paper and inklng ribbon toward the type and printing one of the type characters on the paper. The key levers may be operated independently of each other, or any desired number of key levers may be operated simultaneously.

The universal bar associated with the key levers is preferably in the form of a frame having a transverse abutment holder 18 (Figs. II, IV and VIII) arranged in front of the series of lever arms 11 and provided with a yieldable abutment 19 which engages all of said lever arms 11. This yieldable abutment is preferably a felt pad. The universal bar also includes a pair of arms 20 and 21 pivotally supported by the pivot member 12, arranged on opposite sides of the lever arms 11, and secured near thei-rupper ends to the transverse abutment holder- 18. 22 designates a connecting member uniting the arms 20 and 21 of universal bar, said connecting member being located at the rear of lever arms 11. 23 designates a re-' storing spring tending to retain the universal bar in the position shown in Fig. II. This restoring spring is preferably con nected to the universal bar, or frame, at a point substantially midway between the side arms 20 and 21. The transverse abutment 19, forming part of the universal bar structure,'1s so arranged that the unlversal bar Wlll move in response to movements of any one of the key levers.

The transverse abutment holder 18 uniting the arms 20 and 21, is preferably a channel shaped member formed integral with said arms,'and in addition to serving as an abutment holder,this member 18 very materially reinforces the universal bar structure.

The connecting member 22 reinforces the structure at a point substantially between the abutment holder 18 and the pivotal sup port 12. The universal bar structure is thus strengthened or braced so that it will not be distorted, bent, or otherwisemutilated by the peculiar stresses to which it is subjected in transmitting energy from the different key levers to, the feeding devices.

The inking ribbon 4:, which travels between the type bar 3, and printing hammers 13, is preferably a continuous strip of material (Fig. I) passing around guide spools 24 and 24:, and fitted to a feed spool 25, the lat ter being fixed to a vertical shaft 26. The

means for driving the feed spool 25 com prises a ratchet wheel 27 fixed to the shaft 26, an oscillatory pawl arm 28 (Figs. I and VI) loosely fitted to said shaft 26 and provided with a pawl 29 which engages the ratchet wheel 27 A yieldable link 30, in the form of a helical spring, connects the arm 21 of the universal bar to the pawl arm 28. During each key operation, the universal bar wheel 28.

The paper feeding device preferably comprises a rotatable shaft 32,a pair of feed wheels 33 fixed to said shaft, a ratchet wheel 35 fixed to the shaft, and a pawl carrier 36 loosely secured to said shaft. 37 designates a pawl (Fig. III) pivoted to the pawl carrier 36, and 38 designates a spring connecting said pawl to the pawl carrier. The

spring 38 tendsto force the pawl into engagement with. the ratchet wheel 35, as shown by dotted lines in Fig. III. The arm 21 of the universal baris provided with an extension 39 (Figs. III and VIII) which 00- operates with an. arm 40 .on a pawl carrier 36. A spring 41, securedto the universal bar, forces the arm 40, into engagement with the universal bar extension 39, said arm 4L0 being provided with a pad which bears against said extension, as seen in Fig; III. This arm 40, extending from the pawl carrier 36, is so arranged between the spring ll and unlversal bar extension 39, that the pawl:

carrier will partake ofthe movements of the universal bar. It will be understood that.

the pawl carrier 36, as well as theauniversal bar, is under the control of the key avers;

andthatthe pawl carrier is adapted to os-j cillate inresponse. to movements of said key levers. f i

W hen a key isdepressed, or when several keysare depressed simultaneously, the uni versal bar moves forwardly about the axis of the pivot member 12, and the pawl carrier 36 turns about'the axis ofthe shaft 32-} so as to advance the ratchet wheel 35 one step, thus turning the feed wheels 33 toun wind the paper and advance it one step. At the end ofthe paper feeding operation, the printing hammer or hammers 13 force the paper and inking ribbon toward the type to print the selected character or characters.

At this time the connecting member 18 of the universal bar, engages a yieldable stop. or pad 18", see Fig. II'. Thereafter, the,uni-

versal bar and key lever, or levers, return to; p

the position shown in the drawings, and durmg this movement the paper feeding pawl 37 moves idly along the ratchet wheel 35; i

The paper feeding wheels 33' areprovid'ed" with peripheral teeth, and the margins of the strip of paper are perforated to receive said teeth. 45 designates apresser member adapted to engage thepaperto prevent it from becoming disengaged from the feed wheels during the paper feeding operations. When the upper portion of the universal bar moves forwardly it positively pushes the pawl carrier 36 (Fig. III) to insure the desired positive paper feeding action, and during the return movement of the universal bar, the pawl carrier is forced backwardly through the medium of a spring 41, the latter being secured to the universal bar. This spring 41 retains the pawl carrier in engagement with the universal bar, thereby preventing noisy hammer blows which would occur if one of these parts was permitted to strike the other. The axes of the universal bar and pawl carrier lie in difierent planes, and these parts therefore slide on each other during the paper feeding operations. The spring 41 yields freely to permit a movement of this kind. Furthermore, the noiseless joint at the junction of the universal bar and pawl carrier is not impaired by wear at the point where said parts engage each other. Another advantage of this substantially universal joint, is that the spring 41 will yield to compensate for inaccuracies in the dimensions or location of the parts with which it is associated.

B designates an upper key lever guide, arranged above-the universal bar and provided with a series of grooves for the reception of the upper portions of lever arms 11. An angular guiding device 0, located at the junctions of lever arms 10 and 11, constitutes a support for the pivot member 12, and it is provided with a series of comb-like teeth to which the key levers are fitted. This guiding device C is also provided with angular grooves 46 for the reception of the arms 20 and 21 of the universal bar. These arms 20 and 21 have extensions 20 and 21 which lie in an angular groove 46, said extensions being formed at an angle to the arms 20 and 21, as shown in Fig. VIII. The angular guiding device C is closely fitted to the angular lower portions of the universal bar structure, and owing to the shape and arrangement of these parts, the universal bar is firmly and accurately guided in its movements. The angular guiding device also serves as means for bracing the universal bar structure.

The printing hammers and the type holder associated therewith are claimed in an application for patent filed by W. S. Ireland on Nov. 18, 1916, Serial No. 132,07 6. The key lever guide is claimed in an application filed by W. S. Ireland and W. E. Lippert, on Nov. 18, 1916, Serial No.

132,077. The inking device is claimed in an application filed by W. S. Ireland on Nov. 18,1916, Serial No. 132,075. The paper feeding device is claimed in an application filed by W. S. Ireland and W. E. Lippert on Nov. 18, 1916, Serial No. 132,066.

WVe claim: 1. In a typewriting machine having key levers, a universal frame operable by said key levers, and a pivotal support for said universal frame, said universal frame comprising a pair of arms extending from said pivotal support and connecting members uniting said arms,'said connecting members being located at opposite sides of said key levers.

2. In a typewriting machine having a series of key levers provided with upwardly extending arms, a universal frame operable by said arms, said universal frame comprising a pair of side members, a front connecting member uniting said side members and arranged in front of said arms, and a rear connecting member uniting said side members, said rear connecting member being located at the rear of said arms.

3. In a typewriting machine having key levers, a universal frame operable by said key levers, said universal frame comprising a pair of arms arranged at opposite sides of said key levers, a connecting member uniting said arms, and a restoring spring attached to said connecting member at a point substantially midway between said arms.

4. In a typewriting machine having key levers, a universal frame operable by said key levers, and a guide for bracing said universal frame, said universal frame bein provided with extensions which are fitted to said guide.

5. In a typewriting machine having key levers, a universal frame operable by said key levers, and guide members for bracing said universal frame, said universal frame being provided with side arms having extensions which are fitted to said guide members.

'6. In a typewriting machine having key levers, a universal frame operable by said key levers, and a guiding device for bracing said universal frame, said universal frame being provided with side arms which lie on opposite sides of the key levers and which are fitted to said guiding device, and the said side members being provided with extensions which lie in said guiding device.

7. In a typewriting machine having key levers, a universal frame operable by said key levers, said universal frame comprising a pair of side arms having extensions which lie at an angle to said side arms, and an angular guiding device fitted to said side arms and their extensions.

8. In a typewriting machine having key levers, a universal frame operable by said key levers, and a pivotal support for said universal frame, said universal frame comprising a pair of arms extending from said pivotal support, a channel-shaped reinforcing element connecting and formed integral with said arms, an abutment member arranged in said ohannel-shaped reinforcing element and extending therefrom to engage said key levers, and a connecting member reinforcing said arms at points between said channel-shaped member and said pivotal support.

9. In a typeWriting-n1aehine having a series of key levers provided with upwardly extending arms, a universal frame operable by said arms, said universal frame comprising a pair of side members, a pivotal support for said side members, a connecting member uniting said side members at a point above said pivotal support,said connecting member being arranged in front of and provided With an elongated yieldable abutment adapted to be engaged by the arms of said key levers, a yieldable abutment normally engaged by the rear faces of said arms, and a yieldable abutment arranged infront of said universal frame to limit the forward movement thereof. 7

WARD S. IRELAND.

WALTER E. LIPPERT.

Copies of this patent may be obtained for five cents each; by addressing the Commissioner of Patents, Washington, D. 0.

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