US757431A - Type-writing machine. - Google Patents

Type-writing machine. Download PDF

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Publication number
US757431A
US757431A US4374901A US1901043749A US757431A US 757431 A US757431 A US 757431A US 4374901 A US4374901 A US 4374901A US 1901043749 A US1901043749 A US 1901043749A US 757431 A US757431 A US 757431A
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Prior art keywords
paper
arm
carriage
platen
type
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US4374901A
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Walter J Barron
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DENSMORE TYPEWRITER Co
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DENSMORE TYPEWRITER Co
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/54Locking devices applied to printing mechanisms
    • B41J29/58Locking devices applied to printing mechanisms and automatically actuated
    • B41J29/68Locking devices applied to printing mechanisms and automatically actuated by completion of a page or predetermined number of lines or exhaustion of paper to lock the keyboard

Description

Nd. 757,431. I PATENTBD APR.19, 1904.
' a w. J. BARRON.-
TYPE WRITING MACHINE.
APPLICATION rnnn JAN. 18, 1901. no 11012 1.. v 4 SHEETS-SHEET 1,
WA/ITNEQSEEI I T 14:5 ATTUR NEY,
No. 757,431. PATENTED APR. 19 ;1904.
W, J. BARRON. V TYPE WRITING MAGHINB. v APPLICATION FILED JAN. 18, 1901'. no 110mm. 4 sums-sum z.
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PATENTED APR. 19, 1904- W. J. BARRON. TYPE WRITING MAGHINE. APPLICATION rmin JAN. 18. 1901.
4 SHEETS-SHEET 3.
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"\A/ITNESEEE @K'J MW 1-h5 TT :3 NEY PATENTBD APR. 19, 190+;
w; J. BARRON; TYPE, WRITING MACHINE.
Y 4 W- R. D R .T D m N T k E T T; V P IN m m 4 7 L L :54 MM n M UNITED STATES Patented April 19, 1904:.
WALTER J. BARRON, or BROOKLYN,
NEW YORK, ASSIGNOR TO THE DENSMORE TYPEVVRITER COMPANY, OF SYRACUSE, NEW YORK, A
CORPORATION OF NEW YORK.
TYPE-WRITING MACHINE.
PEGIFICATION formingpart of Letters Patent NO. 757,431, dated April 19, 1904.
Application filed January 18, 1901. Serial No. 43,749. (No model.)
To all whom it may concern: 7
Be it known that I, WALTER J. BARRON, 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 ofNew York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.
This invention relates to means for notifying the operator when a predetermined point is reached upon a page of writing or when the operator has come to the end of a page, and thus enabling him to avoid printing too far down on the sheet or printing upon the platen after the edge of the sheet has been fed past the printing point, thereby conducing to greater uniformity in the ending of the pages of a given piece of work and avoiding injury to the platen.
In carrying out the invention I provide means controlled by the paper for locking the type-actuating keys, preferably when the next to the lastline upon the page is being written, thereby warning the operator that there is room for only one succeeding line. I also provide means whereby the keys may be unlocked, so that the operator may finish the line, and also means for ringing the bell while the carriage is being returned to begin the last line upon the page. I also provide for again locking the keys during the writing of the final line, thus finally notifying the operator that no more should be written upon the sheet.
I accomplish these results by means of mechanism which may be readily attached to existing machines.
My invention consists in certain features of construction, combinations of devices, and arrangements of parts, all as will be fully hereinafter set forth, and particularly pointed out in the concluding claims.
In the accompanying drawings my invention is shown as applied to a Remington No. 6 machine, substantially as shown and described in the patent to G. B. Webb, granted February 22, 1898, No. 599,428. T
Figure 1 is a plan of the left-hand upper portion of said machine and corresponds to the left-hand portion of Fig. 1 in said patent. Fig.2 is a sectional side elevation taken on the line X X of Fig. 1 and corresponds to Fig. 3 of said patent. Fig. 3 is a perspective view 'of a paper-controlled arm. Fig.4 is a sectional detail View taken at about the line Z Z of Fig. 1 and illustrating the position of the paper-1 controlled devices whenlocking the keys. Fig. 5 is a perspective bottom view of a bracket designed for attachment to the endwise-movable key-locking margin-gage rack of a Remington machine and adapted to support a tappet. Fig. 6 is a skeleton view of a portion of Fig. 2, but illustrating in dotted lines the method of unlocking the keys. Fig. 7 is a view resembling Fig. 6, but illustrating the method of ringing a bell during the retraction of the paper-carriage to begin a line of writing. Fig. 8 is a fragmentary rear View of a portion of the letter-feeding and key-locking mechanism. Fig. 9 is a profile view of a Remington machine.
, In the several'views similar parts are designated by similar numerals of reference and certain portions of the machine are omitted or broken away to more clearly disclose the invention. 1 designates corner-posts upon which is supported a top plate or type-ring 2, from which rise ears 3, upon which is mounted the main carriage-guiding rail 4.. A truck 5, having wheels 6, which engage said rail, and connected to a second rail 7 by means of an arm 8, is adapted to carry a platen-frame, the latter comprising end bars 9, front bar 10, and rear bar 11, and being hinged at 12 upon a rocking frame 13, which is pivoted at 14 to the forward portion of said truck. Said frame carries both a cylindrical platen 15, journaled at 16 in the side arms 9, and also paper guiding and feeding fingers'or plates 17 and pressure-rollers 18. The front bar 10 of the platenframe carries a roller 19, which runs upon a shift-rail 20. Upon said truck is carried a longitudinal rack 21, which meshes with a pinion 22, the latter being connected to an escapement-wheel 23, which is alternately engaged during the movements of the keys and type-bars by dogs 24 and 25, the former being a feeding-dog and normally in engagement with said wheel and the latter being a detentdog normally disengaged from said wheel, but brought into engagment therewith during the printing strokes of the types. The carriage is propelled by a spring-barrel 26, to
shaft arranged on the carriage and surrounded by a coiled spring 32, said pivot having also a weight 33. The plate 31 may engage the lug during a longitudinal movement of the carriage in letter-feeding direction, and thereby cause the 'rack 29 to slide endwise upon its pivots 28. During this motion of the rack a stud 34, projecting downwardly therefrom, engages an upwardly-projecting arm 35 of a belllever, which is pivoted at 36, and thereby causes the horizontal arm 37 of said lever to move downwardly, so that its nose may intercept a lug 38, formed on the rear portion of the detent-dog 25, and thereby lock said dog, and hence all of the type-operating keys,
against action. This operation is known in the art as locking the line. When it is desired to release the keys from the control of the locking mechanism, so that more characters may be added at the end of the line, a button 39, provided upon the forward end of ahorizontal rod 40, is pushed in, thereby moving said rod rearwardly, together with a vertically-directed arm 41, formed'thereon. Said arm 41 loosely engages a fork 42, formed upon the lower end of a bracket 43, which is attached by a screw 44 to the under side of the rack 29, at the left-hand end of the latter, so that said rearward movement of the rod 40 and arm 41 causes said rack to rotate upon its pivots 28, as indicated at dotted lines at Fig. 6, whereby the stud 34, depending from said rack, is swung rearwardly out of engagement with the arm 35 of the pivotedlocking-lever, and said lever is thereby enabled to resume normal position by reason of the reaction of a spring (not shown) usually provided for the purpose, so that the dogrocker, and hence the keys, are released and may be freely operated. To said rack 29 is attached a clapper 44, which is adapted to a bell 45, so that when said rack is rocked upon the pins 28 by engagement of the arm 31 with a cam 46 said clapper is lifted, and when said arm slips off from or releases said cam, whereby the rack is permitted to swing back to normal position, said clapper drops and strikes said bell.
Since all of the parts above mentioned are common in the said Remington No. 6 typewriting machine, it is not deemed necessary to describe them more fully.
I place between the paper and the left-hand portion of the platen, which latter is recessed or circumferentially reduced at 47 for the purpose, the free end 48 of a wire loop, which extends parallel with the platen-axis and whose other arm, 49, is adjustably secured by a screw 50 to the lower end of a swinging arm 51. The part 49 lies in a shallow depression or groove 52, formed upon the under or rear surface of said arm, so that the loop may be adjusted longitudinally of the platen and also rotated to different angular positions, Fig. 7-, to meet varying conditions as to width of paper or extent of margin required at the end of a page, &c., the screw 50 being adapted to hold said loop, in any position to which it may be adjusted. The upper portion of said swinging arm 51, which abuts against the inner vertical face of a lug 53, usually cast upon the platen frame, is pivoted upon a long shoulder formed upon a horizontal screw 54, which is'tapped into the said lug 53. The arm 51 extends downwardly and forwardly from its pivot and occupies a position just in rear of the platen and just at the left of the devices usually provided for guiding and feeding the paper around the platen, so that the left-hand margin of the paper may be readily brought into cooperative relation with the finger 48, carried at the lower end of said arm At Fig. 4 the arm is shown in full lines as resting against the forward edge of a small stop-plate 55, secured by a screw 55 upon the under surface of saidlug 53 and projectinginwardly therefrom to a position behind the arm 51. The arm is of light construction, so as to avoid liability of tearing the paper and also so as to insure that the finger 48 shall be sustained in its elevated position by the comparatively weak paper, which latter, it will be understood, has an adjacent support, as indicated at 17, Fig. 1, so that it is not apt to buckle or sag by reason of the weight of said arm 51 and the finger thereon. Said arm is adapted to swing downwardly from its position at Fig. 2 to the full-line position at Fig.4, in which latter position it may during the letter-feeding movement of the carriage strike the left-hand edge of a blade-like tappet56, and hence impart an endwise movement to the margin-gage rack 29, to which latter the tappet is connected. by means of a bracket, which is designated as 57 and which is secured by a screw 58 to the front vertical face of the hereinbefore-described key-releasing arm 43. The tip of said bracket 57 is bent over upon said margin -gage bar at 59, and at its lower end it is bent forwardly at 60 and downwardly on opposite sides at 61, so as to form ears, which are perforated at 62, Fig. 5, toreceive a pivotpin 63, whereby said tappet 56 is secured at its rear portion upon said bracket, so that a contact of the forwardend of the tappet with the top plate of the machine may not prevent a pivotal movement of the margin-gage rack, Fig. 6. The tappet 56 is prolonged rearwardly beyond the pivot 63 and provided with an upturned nose 64, which is adapted to bear up against the under surface of the part of the bracket 57 and prevent the forward end of the tappet from sagging.
The tappet 56 and the margin-gage bar-are moved to the left by the arm 51, and thereby the dog-rocker is locked, and the keys are prevented from descending, so that the operator is notified that the predetermined point upon the page has been reached. This key-locking action occurs at about the middle of the line being written, so that the operator may not be led to suppose that it is the usual linelocking operation. The button 39 may be pushed back so as to release the keys and enable the operator to complete the line, and
during the subsequent return movement of the carriage the arm 51 again engages the forward portion of the tappet 56; but owing to a twist 56, which is made in said tappet about midway of its length, an inclined face is presented to the arm 51, and hence the tappet is cammed downwardly by the arm 51, this operation being facilitated by abevel 51, formed upon the lower-end thereof, so that the arm at this time acts in the nature ofa tripping device. During said oamming the tappet is not vibrated upon the pivot 63, owing to the engagement of its nose 64 with the bracket 57; but the bracket and the margin-gage rack are together vibrated upon the trunnions 28, thereby raising the bell-clapper 44, as illustrated. at Fig. 7, so that when the arm 51 releases the tappet'the latter, together with the margin-gage rack, may resume normal position and the clapper may descend and strike the bell 46, this occurring at about the middle of the return stroke of the carriage. Thus the operator is given a second warning that the end of the page is at hand. A guard 67 is provided upon the top plate for preventing injury to the tappet 56 at any time by reason of the engagement therewith of the arm 51, which engagement, it will be understood, subjects the comparatively weak tappet to considerable transverse stress. t
i To set the device in working position, the arm' .51 is swung forwardly by means of rearward pressure exerted upon an upwardly-ex tending portion 65 thereof until the finger 48 contacts with the recess 47, formed upon the end of the platen, whereupon the paper is in- I serted in the machine with its left-hand edge overlapping said recess and so that a portion of said finger 48 lies between the paper and the platen. The operation of writing proceeds line by line in the usual manner until the bottom of the sheet(designated as 66) releases the finger 48 and permits the arm 51 to drop, at which time the next to the last line upon the page is being written. During the writing of this line the arm 51 engages the tappet 56 and moves the latter, together with the margin gage rack 29, toward the left, thereby causing the lever 37 to intercept the dog 38, and hence prevent the usual operation thereof and of thekeys and types. The operator is thereby notified that there is room for only one more line upon the page. In order to finish the line, the button 39 is pushed rearwardly, thereby swinging the margingage rack and freeing the dog 38 and the typekeys. When the carriage is returned for beginning a new line of writing, the cam edge 51 strikes the inclined surface of the tappet 56 and forces the latter downwardly about the axis 28, thus raising the bell-clapper 44, which immediately falls and sounds an alarm. Upon writing the next line, which is in this instance the last line upon the page, the keys are again locked by reason of the engagement of the arm 51 with the tappet 56, and bythis third warning the operator is notified that no more lines should be written upon the page.
The arm 51 may be locked in an inoperative position at any time by means of a lever or button 68, which is pivoted, by means of a screw 69, upon the upper portion 65 of the arm 51 and is adapted to wedge against the vertical arm or ledge 7 0 of a bracket which is secured by a screw 71 upon the lug 53, the parts being so proportioned that when said arm or button is wedged downwardly the striker 51 is thereby sustained out of contact with the tappet 56, while the finger 48 stands slightly away from the platen or a trifle below its position at Fig. 2. The device 68 may also be employed for holding the finger in this position while the paper is being inserted, thus leaving both hands free for adjusting the paper.
As usual, the platen is provided with a linespace wheel 71, having a spring check or detent 72 and operated by a pawl 73, the'latter being carried upon an upwardly-extending arm 74 of a carriage-lever 75. The impressions upon the paper are made by types 76, carried upon the ends of bars 77, the latter being connected by rods 78 to key-levers 79. Arranged transversely beneath the key-levers is a universal bar 80, which is suspended by hooks 81 upon branches 82 of a dog-rocker 83, the latter being pivoted at 84 and provided with a returning-spring 85.
The pressure roller or rollers 18 are journaled in the lower ends of arms 86, the latter being pivoted at their upper ends at 87 to the rear bar of the platen-frame and pressed forwardly by springs 88. At the left-hand end of the carriage is arranged a pressure-roller release -lever 89, which is mounted upon a horizontal rock-shaft 90, the latte-r having blades 91, adapted to engage projections 92 upon the pressure-roller arms 86, so thatwhen said release-lever is pushed rearwardly its shaft is rocked, and the blades thereon push the arms 86 rearwardly, thus moving the pressure-rollers away from the platen and permitting the insertion of the paper between the rollers and the platen. At the same time a part 89 of the release-lever contacts with a finger 93, which is riveted or otherwise secured upon the paper-controlled arm 51, so that said arm is pressed upwardly until the finger 48 contacts with the platen, as illustrated at Fig. 2. Thus by one movement of the lever 89 the pressure-rollers are thrown away from the platen to permit the introduction of the paper, and the finger 48 is moved into the groove 47, where it is in position to be engaged by the paper when the latter is passed into the machine. Upon release of the lever 89 the pressure-roller is permitted to move against the platen under the tension of the springs 88, while the finger 48 is retained by the paper.
From the foregoing description it will be understood that the bell 45 and its cooperating mechanism constitute alarm or sounding means for notifying the operator when an end of a page is approached, that the sounding of the bell is directly effected by the travel of the carriage, but that the paper controls the actuation or sounding of the bell, and that an automatic actuation of the bell hammer or clapper is is afforded by the line-feed'movement of the paper.
Many changes may be made within the scope of my invention, some portions of which may be used without others.
- What I claim as new, and desire to secure by Letters Patent, is-
1. In a type-writing machine, as a means for notifying the operator that a predetermined point upon a page of writing has been reached, the combination with a carriage, of a paper-controlled device and a cooperating device, one of said devices being arranged upon the carriage and the other thereof being arranged upon the framework of the machine, and said devices being caused to coact by a movement of'the carriage along the framework. 7
2. In a type-writing machine, the combination of a carriage, a device which may be positioned by the paper, and means for notifying the operator that a predetermined portion of the page has been reached, said means being adapted to be actuated by a movement of said carriage after the positioning of said device.
3. In a type-writing machine, the combination of acarriage, a part held in an inoperative position by the paper, and means which may be engaged by said part during a longitudinal movement of the carriage, after said part has tion of acarriage, aoylindrical platen thereon, a movable arm also supported upon said carriage and provided with a finger releasable by the paper, a device upon the fixed framework which may be engaged by said movable arm during a longitudinal movement of the carriage, and means connected to said framework device for notifying the operator that a predetermined portion of the page has been reached.
5. In a type-writing machine, the combination of a carriage, a series of types, and keys therefor, and means called into action by a movement of the paper in line-space direction for locking said keys.
6. In a type-writing machine and in combination, a carriage, a device controlled by the paper, and a key-locking device actuated by the carriage after the release of the papercontrolled device.
7. In a type-writing machine, the combination of a carriage, a movable arm mounted on the carriage and releasable by the paper, and a key-locking device mounted upon the frame of the machine and extending to a point where it may be actuated by said arm upon the release of the latter by the paper.
8. In a type-writing machine, the combination of a carriage, a part thereon releasable by the paper, and a key-locking device extending to a position where it may be actuated by said part during a longitudinal movement of the carriage.
9. In a type-writing machine, the combination of a carriage, a device releasable by the paper, and key-locking and bell-ringing mechanisms cooperating with said releasable device.
10. In a type-writing machine,the combination of a carriage, means releasable by the paper for locking the key during the writing of a line, and a bell-striking device with which said releasable device cooperates during a return movement of the carriage.
11. In a type-writingmachine,the combination of a carriage, means releasable by the paper for locking the keys, and means for releasing the keys.
12. In atype-writing machine,the combination of acarriage, a device releasable by the paper, means cooperating with said releasable device for locking the keys, means for releasing the keys, and means also cooperating with said releasable device for ringing the bell during a return movement of the carriage.
13. In atype-writing machine, the combination of a carriage, letter-spacing devices, linespacing devices, means for locking the keys when a predetermined point is reached in the line of writing, and means for locking the keys when a predetermined point is reached in line-space direction.
14:. In a type-writing machine, the combination of a carriage, means for feeding the paper in two directions, and means for locking the keys when the paper has reached predetermined points in its feeding movements in both directions.
15. In a type-writing machine, the combination of a carriage, letter-feeding mechanism, line-spacing devices, key-locking mechanism, means for actuating said key-locking mechanism at a predetermined point in each line of writing, and means released by the sheet for causing an actuation of said key-locking mechanism at a predetermined point in the page of writing.
16. Inatype-writing machine, the combination of a carriage, a device controlled by the paper, and a bell mechanism actuated by the carriage after the release of the paper-controlled device.
17. In a type-writing machine, the combination of a carriage, letter-spacing devices, linespacing devices, a margin-gage bar, key-locking devices connected to said bar, a tappet upon said bar, and an arm releasable by the fiaper for c'oacting with said tappet to lock the eys.
18. In a type-writing machine, the combination of a carriage, letter-spacing devices, linespacing devices, a margin-gage bar, key-locking devices operated by an endwise movement of said bar, a tappet extending forwardly from said bar, and an arm releasable by the paper for engaging said tappet so as to move the bar endwise.
19. In atype-writing machine, the combination of a carriage, letter-spacing devices, linespacing devices, a journaled margin-gage rack, key-locking devices operable by an endwise movement of said rack, a bell-ringing device operable by a pivotal movement of said rack, a tappet connected to said rack, and a device mounted upon the carriage and releasable by the paper for engaging said tappet both to move the said rack endwise and also to give said rack a pivotal movement.
20. In a type-writing machine, the combination of a carriage, letter-spacing devices, linespacing devices, a j ournaled margin-gage rack, key-locking devices operable by an endwise movement of said rack, bell-ringing devices operable by a pivotal movement of said rack, a tappet connected to said rack and having an inclined face, and a device upon the carriage releasable by the paper for engaging the said tappet during a movement of the carriage in letter-feeding direction so as to move said rack endwise, and engaging with said inclined face during a return movement of said carriage so as to impart a pivotal movement to said rack.
21. In atype-writingmachine, the combination of a carriage, a platen, a platen-frame, arm 51 pivoted on said platen-frame, finger 48 supported upon said arm, tappet 56, margingage rack 29, and key-locking devices operable by said rack.
22. In atype-writing machine, the combinabell-ringing device operable by a movement thereof in another direction.
24. In a type-writing machine, the combination of a platen, paper guiding andfeeding devices, a recess in said platen, a finger adapt-" ed to lie in said recess between the platen and the paper, and a device called into action when said finger is released by the sheet for notifying the operator that a predetermined point upon the page has been reached.
25. Inatype-writing machine, the combination of a platen, paper guiding and. feeding devices, a recess in said platen, an arm, afinger adjustable upon said arm and adapted to lie in said recess between the paper and the platen, and a device called. into action when said finger and arm are released by the sheet for notifying the operator that a predetermined oint upon the page has been reached.
26. n a type-writing machine, the combination of a carriage, a platen, devices for guiding and feeding the paper, arm 51, finger 48 adjustable upon said arm in a direction longitudinally of the platen and adapted to be held by a sheet of paper in the machine, the longitudinal adjustment of said finger being effective to meet varying conditions in the width of the paper, and means called into action when said finger is released by the sheet, for notifying the operator that a predetermined point upon the page has been reached.
27 Inatype-writing machine, the combination of a platen, recess 47 therein, loop 48, 49, arm 51 having groove 52 and screw 50, and a device operable by said arm when released by the paper for notifying the operator that a predetermined point upon the page has been reached.
28. In a type-writing machine, the combination of a platen, paper guiding and feeding devices, loop 48, 49, screw 50, arm 51, tappet 56, and key-locking devices movable by said tappet.
29. In a type-writing machine, the combination of a carriage, a device operable by a longitudinal movement of said carriage for notifying the operator that a predetermined line in the page has been reached, and a striker controlled by the paper and cooperating withsaid device. 1
30. In a type-writing machine, the combination of a paper-controlled arm, means coacting therewith for indicating to the operator by the actuation of an alarm the point which has been reached upon the page of writing, and means for holding said arm in a position of disuse.
31. In atype-writing machine, the combina tion of a platen, a platen-frame, finger 48 adapted to be released by the paper, arm 51 pivoted upon the platen-frame, and button 68.
32. Ina type-writing machine, the combination of a platen, finger 48, arm 51, button 68, ledge 7 0, tappet 56, and means controlled by said tappet for locking the keys.
33. In a type-writing machine, the combination of a platen, a pressure-roller movable away from the platen, a device adapted to be engaged by the paper, a connection between said device and said pressure-roller such that when said pressure-roller is moved away from the platen said device is moved into position to be engaged by the paper, and means for notifying the operator that a predetermined portion of the page has been reached.
34. In a type-writin g machine, the combination of a platen, a pressure-roller, a lever for releasing said pressure-roller, a device adapted to be engaged by the paper and moved by said release-lever to a position where it may be engaged by the paper, and means acting on the release of said device by the paper, for notifying the operator that a predetermined portion of the page has been reached.
35. In a type-writing machine, the combina tion of a platen; pressure-roller 18, lever 89, means operated by said lever for releasing said pressure-roller, arm 51 having a part operable by said lever, finger 4:8 moved by said lever to a position where it may be controlled by the paper, and a device operable by said arm 51 3 when said finger is released by the paper, and during a longitudinal movement of the carriage, for notifying the operator that a predetermined portion of the page has been reached.
36. Inatype-writing machine, the combination of a carriage, and sounding means for notifying the operator when an end of the page approaches the printing-line, said sounding means being actuated by a movement of the carriage.
37 In a type-writing machine, the combination of a carriage, sounding means controlled by the paper, and means operated by the longitudinal movement of the carriage for actuating said sounding means.
38. In a type-writing machine, the combina tion of a carriage, a tripping device controlled by the paper, an automatic actuation of said tripping device being afiorded by the line-feed movement of the paper, and a sounding device actuated by a movement of the tripping device with the carriage during the travel of the latter.
39. Inatype-writing machine, the combina tion of a carriage, a sounding device, actuating means controlled by the travel of the carriage for actuating said sounding device, and means controlled by the paper for rendering said actuating means operative.
Signed in the borough of'Manhattan, city of New York, in the county of New York and State of New York, this 16th day of January, A. D. 1901.
WALTER J. BARRON.
Witnesses:
K. V; DONOVAN, E. M. VVELLs.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2606642A (en) * 1949-09-22 1952-08-12 Philip J Linskey Bottom margin indicating mechanism for typewriters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2606642A (en) * 1949-09-22 1952-08-12 Philip J Linskey Bottom margin indicating mechanism for typewriters

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