US629800A - Type-writing machine. - Google Patents

Type-writing machine. Download PDF

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Publication number
US629800A
US629800A US64365197A US1897643651A US629800A US 629800 A US629800 A US 629800A US 64365197 A US64365197 A US 64365197A US 1897643651 A US1897643651 A US 1897643651A US 629800 A US629800 A US 629800A
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block
bar
type
escapement
frame
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US64365197A
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Edward H Merritt
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D H PAYNE
E M WASSON
W A WASSON
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D H PAYNE
E M WASSON
W A WASSON
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/28Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers
    • B41J3/283Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers on bank books or the like

Definitions

  • My invention relates to the improvement of type-writers, and has particular relation to that class of type-writers which are adapted for printing on the pages of books.
  • Fig. 7 is a plan view of the ters of the lines. same.
  • Fig.8 is an end'view of said escapement.
  • Fig. 9 is a transverse section on line or a; of Fig. 6.
  • Fig. 10 is a side elevation of the spacing block or camwhich I employ in connection with the escapement.
  • Fig. ll is a sectional view on line of Fig. '7.
  • Fig. 12 is a detail view in elevation of the escapeline m m of Fig. 12.
  • Fig. 4 is a detail view in perspective of the stationary and traveling base-frame:
  • Fig. 5 is a detail view, partly in section and partly in elevation, illustrating in dotted and ment which I employ in the manner herein" after described for the purpose of spacing the lines of type-written matter.
  • Fig. 13 is an end Similar numerals refer to similar parts throughout the several'views.
  • the framework above the frames 1 and 5 may provide a suitable external casing, which is shown at 17, this casing extending about the bottom plate 10 and having its upper portion extending downward on the inner side of the cylinder let.
  • the plate 10 is provided with an extension, as indicated at 18, said casing 17 extending over said extension 18, as indicated.
  • each of the lugs 21 is provided with an inward extension 22, in the upper side of which is formed an inclined recess or pocket 23, and in these recessed portions of the lugs is supported an inclined pad-holding ring 25.
  • each of the keylevers 26 has extending upwardly therefrom and suitably connected therewith a key-rod 28, these key-rods passing loosely through openings formed in the casing 17 and having mounted on their upper ends suitable letter and number disks 29.
  • Each of the key-levers 26 has pivotally connected therewith,
  • each of these rods terminating in a vertical extension 31 and the vertical portion of each of said rods preferably being intersected by a suitable turnbuckle 32.
  • the vertical portion 31 of each of the rods 30 extends upward through a small opening 33 into one of the sockets 15 of the cylinder 14.
  • the upper end portion of each of the rod portions 31, which normally terminate in the upper portion of the socket 15, is provided with a head or enlargement 31, and between this head and the lower end of said socket said rod portion is surrounded bya coil-spring 35.
  • each of the links 36' is fulcrumed to the short arm of abell-crank lever 38, the upper end of the main arm of which projects within one of a number of slotted openings 39, formed at intervals in the lower end of the ring 16.
  • the upper ends of said bell-crank main arms are fulcrunied on a circular rod or ring 40, which is threaded through outwardly-projecting lugs or Wings 41 on opposite sides of the slotted openings 39.
  • the main arm of the bell-crank lever 38 normally extends outward and downward and has its lower end fulcru med to the outer end of an angular type-bar42.
  • This type-bar normally extends inward from its fulcru m-point with the bell-crank and has its inner type-carrying arm inclined downward and inward, as indicated at 4.3.
  • On the lower end of the type-bar arm 43 is secured a suitable printing-type 44, the face of which normally rests on the ink-pad 15, which bears in the circular pad-ring 25.
  • Each of the normally-horizontal portions of the type-bar 42 has fulcrumed thereto the upper end of an arm 46, the lower end of which is fulcrumed on a wire ring 47, which passes through the lugs 21.
  • each of the key-levers 26 and in front of the circular set of type-bars extends, in contact with said levers, a transverse bar 50.
  • an upwardly-extending rod 51 Connected with each end of this transverse bar is an upwardly-extending rod 51, the upper end of which is suitably connected with the front transverse bar 52 of a rocking frame 53.
  • the side arms 54 of this frame 53 extend rearwardl y beneath the outer sides of the type-plate 13 and are connected with the rear transverse frame-bar 55.
  • At the centers of the lengths of the side bars 51 of the frame 53 said side bars are fulcrumed to hangers 57, which depend from the under side of the plate 13.
  • the rocking frame thus produced has depending from its rear arm an escapementoperating rod 59.
  • a suitable or ordinary form of spring-reel such as that indicated at 9, the spring-strip 61 of which extends outwardly from said casing, thence downwardly over a suitable guide-roller 62, and thence across the frame 5, with the outer side bar 7 of which itis connected.
  • the springreel above mentioned is of that class in which the tendency of the spring is to wind upon a .reel, the construction of the same being well known and common in type-writing and other mechanisms.
  • an escapement mechanism which is indicated at 64.
  • This escapement which is shown more clearly in detail in Figs. 6, 7, 8, 9, 10, and 11 of the drawings, consists, first, in a horizontal bar 65, which, as indicated more clearly in Figs. 1 and 3 of the drawings, is secured horizontally to the rear portion of the machine-plate 10.
  • the bar 65 has pivotally connected there-With, on its outer face, an elongated escapement body or block 67, the latter being channeled to impart thereto a block C-shaped in cross section, as shown more clearly in Figs. 9 and 11.
  • the block 68 represents a sliding escapement-bar, which is of less length than the block 67 and which is adapted to fit and travel within the internal channel of the latter.
  • the block 68 is provided with an elongated mortise as indicated at (39, and within the forward end portion of this mortise projects transversely from the back of the block 67 a stop-lug 67. From this lug extends rearwardly in the di rection of the length of the bar 68 and loosely through the rear end of the latter a guiderod 70, which between the lug 67 and the end of the mortise 69 is surrounded by a coilspring 7] said spring normally retaining the forward end of the mortise 69 in contact with the lug 67.
  • block 68 is provided at its forward end with a downwardly-extendin g tooth 72, which projects through a slotted opening 73 in the lower side of the block 67.
  • a space-regulating block 74 the latter having an internal chamber, as indicated more clearly in Fig. 9.
  • This block which represents a substantially square space, is adapted to be rotated within theend portion of the block (37 by means of a suitable finger-piece 75, mounted on the outer end of a square stem 76, which extends through the block 74on one side of its centerand is adapted to enter a squared opening 77 in the rear wall of the block 67.
  • the stem or pin 76 within the block 74 is provided with a coil-spring 78, which normally retains the squared end of the pin 76 in engagement with the opening 77, and thus prevents rotation of the block 74.
  • the rocking-frame rod is jointedly connected with the upper-side of the escapement-block 67, and it will also be seen that said escapement-block is so supported as to admit of the pawl 81 and tooth 72 engaging with the teeth of the rack 8.
  • a shorter internal sliding escape-mentbar 88 is provided with a shorter internal sliding escape-mentbar 88, the latter having an elongated mortise therein and being made spring-actuated, as prescribed for the bar 68.
  • the block 87 is provided with a pivoted pawl 89, corresponding with the pawl 61, while .the bar 88 is provided in its forward portion with a downwardly-extending tooth 89", corresponding with the'tooth 72.
  • a space-regulating block which slides within the forward end portion of the channeled block 87 and which has passing therethrough a spring-actuated pin 91, which is adapted to be forced by its spring into the desired one of two or more holes 92, formed in the back of the block 87.
  • the 93 represents an angular or bell-crankshaped trigger, which is pivoted at its angle to the rear end of the stationary bar 85, above which its normally-vertical arm projects.
  • the remaining or substantially hook-shaped arm of the trigger 93 is adapted to engage with a recess 94, formed in the back of the block 87, as shown more clearly in Fig. 14 of the drawings.
  • the trigger is normally retained in this engaged position through the medium of a short coiled spring 95, which connects said trigger above its pivot-point with the frame 1.
  • the escapementblock 87 has its rear portion normally elevated by means of asuitablespring-strip 87*, one end of which is secured to the frame 5 and the remaining end of which extends beneath the escapement-block end.
  • I employ a flat page-plate of metal or other suitable material 97, which is designed to be laid and rest upon the pages of an open book, which is IIO shown at 98, and upon this plate I employ a suitable pad 100, of rubber or other suitable material.
  • the page99 which is to be. typewritten is thrown over the pad 100, and the typewriter-supporting frame lis seated upon said page adjacent to its sides.
  • the machine will have moved to the right a distance equal to the distance traveled by the escapement-bar 68, providing a corresponding space between the printed letters. It is evident that I may change the traveling distance of the escapement-bar 68 by pulling the stem 76 out of engagement with the block 67 and retating the block 74 until the desired side of said block is toward the escapement-bar. Owing to the fact that the stem 7 6 is eccentrically connected with said block 74, it is obvious that the distance between the said block and the cscapement-bar will be decreased when that side of'said block which is farthest from the stem is toward the bar.
  • the plate 10 and the mechanism supported thereon are forced back to the left side of the page, and in so doing said plate 10 comes into contact with the upper end of the bell-crank trigger 93 and in running over the same forces the latter back and causes a lifting of the forward end of the escapement-block 87, thus releasing the pawl 89 from engagement with the rack 4.
  • the tooth 89 comes into contact with one of the teeth of the rack.
  • the springstrip 9 the machine is allowed to travel down the page until the spring-actuated escapement-ba'r 88 is in contact with the end of the space-regulating block 90.
  • a type-writingmechanism-supporting plate 10 movably supported on said traveling frame, an escapement-block 67 having a fulcrumed connection with said plate 10, a spring-actuated esoapement-bar in said block, a tooth extension thereof, a spring-actuted and fulcrumed pawltooth supported in said block, said bar and pawl-teeth adapted to engage with the teeth of said rack and means for limiting and regulating the sliding movement of said escapement-bar,of a type-writing mechanism mounted upon said plate 10, a series of fulcrumed key-lever-operated type-bars arranged about an opening in said plate 10, a bar beneath said key-levers, and connections between said bar and said escapement-block 67 whereby the depressing of one of said key-levers raises a one end of said escapement-block, substantially as

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Description

. Patented Aug. I, I899.
E. H. ME BRITT. Y TYPE WRITING MACHINE.
' (Application filed July 0, 1397.
4 Sheets-Sheet I.
(No Model.)
INVENTOR EhmHKNhuifiv WITNESS s=- ATTORNEY m: mmms F'ETEOKS co. mmaLmw. \VAS .No. 629,800. Patented Aug. I, 1899.
E. H. MERB-ITT.
TYPE WRITING HAGHINE.
(Application filed July 6, I897.) (No Model.) 4 Sheets-Sheet 2.
WITNESSES:
Y/ QQM INVENTOR Ema mm-M) No. 629,800. Patented Aug. I, I899.
E. "H; MEBRITT.
TYPE WRITING MACHINE.
v(Application filed July 8, 1897.) R0 Model.) 4 Sheefs3heei 3.
a I 1 I fl 1 73 I I I so 51 1 o c a c n o a I s 57 60 3555 -fs 59 5 0000 000 c' 1 000 //@o IIII I 43 I 70 I I o 1 I L w w immlmm i! 1 I I 1 97 i g I 4 (47 72 I4 9 s' [97 1 as WITNESSES: INVENTOR CA Eiwma Mar-Hi I I BY W Y ATTORNEY HIE NORRIS PETERS co, VHCIFO-LITND., WAEHINGTOV': D. C.
No. 629,300. Pat ented Aug. 1, 1899.-
E. H. MERRITT;
TYPE WRITINGMAEHINfi.
[Application filed. July 6. 1897. (No Modem {smear-Sheet 4.
ig-59 my ATTORNEY -rm: Nomi; Firms co. FNOTOLITNCL. waswmcmn. o. c.
{UNITED STATES' PATENT OFFICE.
EDIVARD ll. MERRITT, OF COLUMBUS, OIIIQ, ASSIGNOR OF THREE-FOURTHSl TO D. H. PAYNE, IV. A. WASSON, AND E. M. W'ASSON, OF SAME PLACE.
- "TYPE-WRITING'MACHINE.
SPECIFICATION fdrining part of Letters Patent No. 629,860, dated August 1, 1899.
I Application filed July 6, 1897. Serial No. 643,651. (No model.)
To all whom it may concern;
Be it known that l, EDNVARD H. Murmur, a citizen of the United States, residing at C- lumbus, in the county of Franklin and State of Ohio, haveinvented a certain new and useful Improvement in Type-Writing Machines,
of which the following is a specification.
My invention relates to the improvement of type-writers, and has particular relation to that class of type-writers which are adapted for printing on the pages of books.
The objects of my invention are to provide an improved machine of this class of superior construction and arrangement of parts by means of which the production of type-written matter on the pages of bound books or volumes will be facilitated and to produce other improvementsihe details of construction and operation of which will be more fully'pointed out hereinafter. These objects I accomplish in the manner illustrated in thea'cconipanying drawings, in which Figure 1 is a central vertical section of my improved type-writing machine. Fig. 2 is a plan view of the same. Fig. 3 is a rear end 5 view.
capement which I employ in spacing the let Fig. 7is a plan view of the ters of the lines. same. Fig.8 is an end'view of said escapement. Fig. 9 is a transverse section on line or a; of Fig. 6. Fig. 10 is a side elevation of the spacing block or camwhich I employ in connection with the escapement. Fig. llis a sectional view on line of Fig. '7. Fig. 12 is a detail view in elevation of the escapeline m m of Fig. 12.
Fig. 4 is a detail view in perspective of the stationary and traveling base-frame: Fig. 5 is a detail view, partly in section and partly in elevation, illustrating in dotted and ment which I employ in the manner herein" after described for the purpose of spacing the lines of type-written matter. Fig. 13 is an end Similar numerals refer to similar parts throughout the several'views.
1 represents the stationary base-frame of my machine, said frame being preferably of the oblong form shown and having its longer side bars channeled or grooved on their upper sides, as indicated at 2. As shown in the drawings, these parallel bars 1 are connected by transverse end bars or plates 3. On the inner side of one of the side bars of the frame 1 I secure, as indicated, a longitudinally-arranged rack 4, the latter having its teeth inclined rearwardly, as shown. Across the oblong frame 1, formed as above described, and on the upper side thereof, I provide a transverse traveling frame 5, the longer and parallel bars of which run transversely of the'frame-bars-l'and are provided on their under sides with downwardly-extending guide-lugs Gofsuch form as to enter and travel within'the grooves 2 of the bars 1. .These transverse bars 5 vare connected over the bars 1 by bars or rails .7. Against'the rear face of the rear frame-bar 5 I secure a rack-bar S, which corresponds with the rackbar. 4..
Upon the forward cross-bar 3 of the frame 1-is mounted a suitable coil' spring reel 9 of the usual or ordinary construction, the outer end of the spring-strip 9, which is normally wound thereon, being secured to the under side of the rear bar 5 of the traveling frame. 10 represents the bottom or base plate of my improved type-writing mechanis m,'the
latter being provided with: parallel trans- ,verse guide-bars 11 Orr-its under side, said guide-bars being adapted to fit and-travel" .within the grooved or channeled upper sides of the traveling frame-bars 5. Rising from the base-plate 10 are standards orcornerposts 12, which at their upper endssu-pport a horizontal top plate 13. This'top plate 13' is provided with a comparatively large central opening, and about said opening is supported an upwardly-extending ring or shortfcylin- ,der lithe circular wall of the latter-having formed therein at suitable intervals Vertical I openings or sockets 15. The plate 13 is provided about its central opening with adownwardly-extending tubular or ringportion 1-6.
As indicated in Fig. 1 of the drawings, I
, tion of the casing 17.
may provide the framework above the frames 1 and 5 with a suitable external casing, which is shown at 17, this casing extending about the bottom plate 10 and having its upper portion extending downward on the inner side of the cylinder let. At the forward side of the machine the plate 10 is provided with an extension, as indicated at 18, said casing 17 extending over said extension 18, as indicated.
Upon the plate 10 and about the opening 19 therein I support a ring 20, the inner side of the latter being provided at short intervals with inwardly-extending and radiallyarranged arms or lugs 21. Each of the lugs 21 is provided with an inward extension 22, in the upper side of which is formed an inclined recess or pocket 23, and in these recessed portions of the lugs is supported an inclined pad-holding ring 25.
26 represents parallel key-levers, the forward portions of which extend over the plate extension 18 and the forward ends of which are fulcrumed to a key-rod 27, which is arranged transversely within the forward por- As indicated in the drawings, a portion of these levers are adapted to extend within the line of the posts 12, while the remaininglevers extend on opposite sides of the plate-ring 20 and terminate within the line of the rear posts '12 at points in rear of and above said ring 20. As is usual in constructions of this character, each of the keylevers 26 has extending upwardly therefrom and suitably connected therewith a key-rod 28, these key-rods passing loosely through openings formed in the casing 17 and having mounted on their upper ends suitable letter and number disks 29. Each of the key-levers 26 has pivotally connected therewith,
within the main framework of the machine,
an upwardly extending and thence upwardly and inwardly inclined operating-rod 30, each of these rods terminating in a vertical extension 31 and the vertical portion of each of said rods preferably being intersected by a suitable turnbuckle 32. As shown more clearly in Fig. 1 of the drawings, the vertical portion 31 of each of the rods 30 extends upward through a small opening 33 into one of the sockets 15 of the cylinder 14. The upper end portion of each of the rod portions 31, which normally terminate in the upper portion of the socket 15, is provided with a head or enlargement 31, and between this head and the lower end of said socket said rod portion is surrounded bya coil-spring 35. At the junction of the portion 31 with the portion 30 of each of said rods said rod is fulcrumed lower end of each of the links 36'is fulcrumed to the short arm of abell-crank lever 38, the upper end of the main arm of which projects within one of a number of slotted openings 39, formed at intervals in the lower end of the ring 16. Outside of this ring the upper ends of said bell-crank main arms are fulcrunied on a circular rod or ring 40, which is threaded through outwardly-projecting lugs or Wings 41 on opposite sides of the slotted openings 39. The main arm of the bell-crank lever 38 normally extends outward and downward and has its lower end fulcru med to the outer end of an angular type-bar42. This type-bar normally extends inward from its fulcru m-point with the bell-crank and has its inner type-carrying arm inclined downward and inward, as indicated at 4.3. On the lower end of the type-bar arm 43 is secured a suitable printing-type 44, the face of which normally rests on the ink-pad 15, which bears in the circular pad-ring 25. Each of the normally-horizontal portions of the type-bar 42 has fulcrumed thereto the upper end of an arm 46, the lower end of which is fulcrumed on a wire ring 47, which passes through the lugs 21.
Beneath each of the key-levers 26 and in front of the circular set of type-bars extends, in contact with said levers, a transverse bar 50. Connected with each end of this transverse bar is an upwardly-extending rod 51, the upper end of which is suitably connected with the front transverse bar 52 of a rocking frame 53. The side arms 54 of this frame 53 extend rearwardl y beneath the outer sides of the type-plate 13 and are connected with the rear transverse frame-bar 55. At the centers of the lengths of the side bars 51 of the frame 53 said side bars are fulcrumed to hangers 57, which depend from the under side of the plate 13. The rocking frame thus produced has depending from its rear arm an escapementoperating rod 59.
Upon the plate 10 and in the rear portion thereof is supported in a casing a suitable or ordinary form of spring-reel, such as that indicated at 9, the spring-strip 61 of which extends outwardly from said casing, thence downwardly over a suitable guide-roller 62, and thence across the frame 5, with the outer side bar 7 of which itis connected. The springreel above mentioned is of that class in which the tendency of the spring is to wind upon a .reel, the construction of the same being well known and common in type-writing and other mechanisms.
For the purpose of uniformly spacing the .letters and in the manner hereinafter described I employ an escapement mechanism, which is indicated at 64. This escapement, which is shown more clearly in detail in Figs. 6, 7, 8, 9, 10, and 11 of the drawings, consists, first, in a horizontal bar 65, which, as indicated more clearly in Figs. 1 and 3 of the drawings, is secured horizontally to the rear portion of the machine-plate 10. As indicated at 66, the bar 65 has pivotally connected there-With, on its outer face, an elongated escapement body or block 67, the latter being channeled to impart thereto a block C-shaped in cross section, as shown more clearly in Figs. 9 and 11.
68 represents a sliding escapement-bar, which is of less length than the block 67 and which is adapted to fit and travel within the internal channel of the latter. The block 68 is provided with an elongated mortise as indicated at (39, and within the forward end portion of this mortise projects transversely from the back of the block 67 a stop-lug 67. From this lug extends rearwardly in the di rection of the length of the bar 68 and loosely through the rear end of the latter a guiderod 70, which between the lug 67 and the end of the mortise 69 is surrounded by a coilspring 7] said spring normally retaining the forward end of the mortise 69 in contact with the lug 67. block 68 is provided at its forward end with a downwardly-extendin g tooth 72, which projects through a slotted opening 73 in the lower side of the block 67. NVithin the channel portion of the forward end of the block 67 I provide a space-regulating block 74, the latter having an internal chamber, as indicated more clearly in Fig. 9. This block, which represents a substantially square space, is adapted to be rotated within theend portion of the block (37 by means of a suitable finger-piece 75, mounted on the outer end of a square stem 76, which extends through the block 74on one side of its centerand is adapted to enter a squared opening 77 in the rear wall of the block 67. As indicated more clearly in Fig. 9 of the drawings, the stem or pin 76 within the block 74 is provided with a coil-spring 78, which normally retains the squared end of the pin 76 in engagement with the opening 77, and thus prevents rotation of the block 74.
In the rear end portion of the block 67 is pivoted at 80 a normally-vertical pawl 81, the
downwardly-extending tooth of the latter projecting through the lower side of the block 67 in the manner prescribed for the tooth 72. This pawl 81 is retained in a normally-vertical position by means of a coil-spring 82, which extends between the upper end portion of the pawl and a shoulder of the block 67. It will be observed that the movement of the bar 68 will be limited by contact with the block 74 and that the distance between said bar 68 and said block will depend upon the position to which said block has been turned. As indicated in Figs. 1 and G of the drawings, the rocking-frame rod is jointedly connected with the upper-side of the escapement-block 67, and it will also be seen that said escapement-block is so supported as to admit of the pawl 81 and tooth 72 engaging with the teeth of the rack 8.
In Figs. 12, 13, 14, 15, and 16 I have shown detail views of the'escapement which Iemploy in the manner hereinafter described for spacingthe type-written lines. In the construction of this last-named escapement I employ a fixed bar 85, which is secured in connection The spring-actuated sliding with the inner side of one. of the side bars of the frame 1 and over the rack 4. To the face of this bar 85 I pivot, as indicated at 86, a
channeled escapement-block 87, and which,
as prescribed for the block 67, is provided with a shorter internal sliding escape-mentbar 88, the latter having an elongated mortise therein and being made spring-actuated, as prescribed for the bar 68. In its rear end the block 87 is provided with a pivoted pawl 89, corresponding with the pawl 61, while .the bar 88 is provided in its forward portion with a downwardly-extending tooth 89", corresponding with the'tooth 72.
90 represents a space-regulating block which slides within the forward end portion of the channeled block 87 and which has passing therethrough a spring-actuated pin 91, which is adapted to be forced by its spring into the desired one of two or more holes 92, formed in the back of the block 87.
93 represents an angular or bell-crankshaped trigger, which is pivoted at its angle to the rear end of the stationary bar 85, above which its normally-vertical arm projects. The remaining or substantially hook-shaped arm of the trigger 93 is adapted to engage with a recess 94, formed in the back of the block 87, as shown more clearly in Fig. 14 of the drawings. The trigger is normally retained in this engaged position through the medium of a short coiled spring 95, which connects said trigger above its pivot-point with the frame 1. The escapementblock 87 has its rear portion normally elevated by means of asuitablespring-strip 87*, one end of which is secured to the frame 5 and the remaining end of which extends beneath the escapement-block end.
In utilizing my invention I employ a flat page-plate of metal or other suitable material 97, which is designed to be laid and rest upon the pages of an open book, which is IIO shown at 98, and upon this plate I employ a suitable pad 100, of rubber or other suitable material. The page99 which is to be. typewritten is thrown over the pad 100, and the typewriter-supporting frame lis seated upon said page adjacent to its sides.
It will be observed that when not in actual operation the type 44 of each of the type-bars key is connected, causing a downward move' ment of one of the proper rods 30, acompression of one of the springs 35, a downward movement of one of the links 36, and, as indicated in dotted lines in Fig. 5 of the drawings, an inward swinging movement of the lever-arm 38.
arm 38 results through the connection of the Thisinward movement of said type-bars.
arm 46 therewith in raising the type-bar 43 up out of contact with the ink-pad and in forcing said type-bar inward and thence downward to the position shown in dotted lines in said figure. In this manner the inked type at the end of the bar is made to strike the page 99 at a central point within the ring of The releasing of the pressure on the key-rod 28 results through the action of the spring 35 in the type-bar,- the lever 38, arm 46, link 37, rod 30, and lever 26 resuming theirnormal positions. The operation of depressing the key-lever above described must also result in a depression of the bar 50, upon which said levers bear. This depression of the bar 50 is followed by a rocking motion of the frame 53, which operates to raise the escapement-operating rod 59 at the rear of the machine, resulting in raising the forward end of the escapement-block 67 and in releasing the tooth 72 from engagement with the rack 8. Before the disengagement of the tooth 72 with the rack is completed the escapement-block will have been tilted to such position as to cause an engagement of the tooth end of the pawl 81 with one of the teethof said rack. On
the completion of the engagement of the tooth.
72 with said rack it is obvious that the escapement-bar will by the tension of its spring 71 be drawn out of contact with the space-regulating block 74, thus bringing said tooth 72 in position for entering the next succeeding tooth of the rack. On releasing the pressure on the key-lever it is obvious that the rod 59 will descend again, depressing the forward end portion of the escapementblock and raising the pawl-tooth out of engagement with the rack and causing an engagement of the tooth 72 with the rack. Owing to the fact that the pawl 81 is spring-actuated, as hereinbefore described, its disengagement with the rack-teeth may be more easily effected, any tendency of the pawl and rack teeth to bind or wedge being obviated by the tend.- ency of the pawl to give slightly when engaged by the rack-tooth. As the pawl-tooth is disengaged from the rack, it is obvious that the tendency of the spring-strip 61 to wind upon the reel must result in a movement of the frame-plate 10 and the mechanism mounted thereon until the space-regulating block 74 is in contact with the end of the escapement-bar 68. In this manner the machine will have moved to the right a distance equal to the distance traveled by the escapement-bar 68, providing a corresponding space between the printed letters. It is evident that I may change the traveling distance of the escapement-bar 68 by pulling the stem 76 out of engagement with the block 67 and retating the block 74 until the desired side of said block is toward the escapement-bar. Owing to the fact that the stem 7 6 is eccentrically connected with said block 74, it is obvious that the distance between the said block and the cscapement-bar will be decreased when that side of'said block which is farthest from the stem is toward the bar.
In order to provide desirable and uniform spaces between type-written lines, I have provided the escapement 87, through the operation of which I am enabled to move the printingmechanism down the page after the completion of each printed line. During the printing of a line across the page the tooth of the pawl 89 is in engagement with one of the teeth of the rack 4, while the rear tooth 89- is raised by the spring 87 out of engagement with said rack. When the end of the printed line has been reached, or when it is desirable to begin the printing of a new paragraph, the plate 10 and the mechanism supported thereon are forced back to the left side of the page, and in so doing said plate 10 comes into contact with the upper end of the bell-crank trigger 93 and in running over the same forces the latter back and causes a lifting of the forward end of the escapement-block 87, thus releasing the pawl 89 from engagement with the rack 4. Immediately prior to the disengagement of said pawl and rack the tooth 89 comes into contact with one of the teeth of the rack. Through the pulling action of the springstrip 9 the machine is allowed to travel down the page until the spring-actuated escapement-ba'r 88 is in contact with the end of the space-regulating block 90. In this manner the desired distance is gained between the lines, the machine now being in position for printing upon a new line. The return of the machine across the page results in again raising the trigger 93 by contact therewith and in the lowering of the forward end of the escapement-block until its pawl ,89 drops into engagement with a new tooth of the rack. It is evident that the distance which the ma chine may travel down the page after the completion of each line may be regulated by pulling outward the spring-actuated stem or pin 91 from engagement with the block 87 and moving the block 90 until the pin 91 may be engaged with the desired pin-hole 92.
From the construction and operation which I have described it will be seen that a reliable form of type-writer is produced the operation of which is simple and positive, and
it will also be seen that the construction of said type-writer is such as to admit of its being employed for printing upon the pages of books or other bound pages.
Having now fully described myinvention,
ICC
whatI claim, and desire to secure by Letters Patent, is-
1. In a type-writing machine the combination with the upper andlower framework and a circular ink-pad supported upon said lower framework, of a plurality of angular typebars normally supported in contact with said inking-pad, a. plurality of spring-actuated f ulcrumed levers 38 connected with said typebars, 'a series of fulcrumed key-levers, links 36 fulcrumed to arms of the levers 38, rods .30 extending from said key-levers and havvmally raising one of said teeth out of engagement with said rack and retaining the other in engagement therewith and a fulcrumed trigger or trip adapted to engage with one end of saidlolock, of a typewriter-mechanism frame, a normally coiled spring supported thereon, and having one of its ends connected with said traveling frame upon which said type-writer frame is movably supported, said typewriter-mechanism frame adapted to come into contact with said escapement-trip when moved laterally, substantially as and for the purpose specified.
3. In a type-writing machine, the combination With a stationary frame 1, a traveling frame 5 mounted thereon, and a rack-bar secured to said traveling frame, a type-writingmechanism-supporting plate 10 movably supported on said traveling frame, an escapement-block 67 having a fulcrumed connection with said plate 10, a spring-actuated esoapement-bar in said block, a tooth extension thereof,a spring-actuted and fulcrumed pawltooth supported in said block, said bar and pawl-teeth adapted to engage with the teeth of said rack and means for limiting and regulating the sliding movement of said escapement-bar,of a type-writing mechanism mounted upon said plate 10, a series of fulcrumed key-lever-operated type-bars arranged about an opening in said plate 10, a bar beneath said key-levers, and connections between said bar and said escapement-block 67 whereby the depressing of one of said key-levers raises a one end of said escapement-block, substantially as and for the purpose specified.
EDWARD H. MERRITT.
In presence of O. (3. SHEPHERD, P. S. KARsHNER.
US64365197A 1897-07-06 1897-07-06 Type-writing machine. Expired - Lifetime US629800A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486901A (en) * 1946-03-30 1949-11-01 Underwood Corp First line position determining means for typewriting machines
US20050040853A1 (en) * 2003-08-22 2005-02-24 Idaho Research Foundation, Inc. High voltage to low voltage level shifter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486901A (en) * 1946-03-30 1949-11-01 Underwood Corp First line position determining means for typewriting machines
US20050040853A1 (en) * 2003-08-22 2005-02-24 Idaho Research Foundation, Inc. High voltage to low voltage level shifter
US7061298B2 (en) * 2003-08-22 2006-06-13 Idaho Research Foundation, Inc. High voltage to low voltage level shifter

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