US1228637A

US1228637A - Type-writing machine.

Info

Publication number: US1228637A
Application number: US85843414A
Authority: US
Inventors: Walter E Barnard
Original assignee: Underwood Typewriter Co
Current assignee: Underwood Typewriter Co
Priority date: 1914-08-25
Filing date: 1914-08-25
Publication date: 1917-06-05
Anticipated expiration: 1934-06-05

Description

W. E. BARNARD.

TYPE WRITING MACHINE.

APPLICATION FILED Aue.25, 1914.

g@ v Patented June 5, 1917.

certain new and WALTER E. BRNARD, 0F BROOKLYN, NEW

WETTER COMPANY, OF NEW YORK, N.

YORK, ASSIGNOR TO UNDERWOD TYPE- Y., .A CORPORATION' 0F DELAWARE.

TYPE-WRITING MACHINE.

Application led August 25, 19M.

To all whom t may concern:

Be it known that I, WALTER E. BARNARD, a citizen of the United States, residing in Brooklyn borough, in the /county of Kings, city and State of New York, have invented useful Improvements in Type-Writing Machines, of which the following is a specification.

This invention relates to means coperating with a revoluble typewriter platen, to determine the position of the end of the work-sheet, or the completion of writing of a predetermined number of lines upon said sheet.

One of the objects of the invention is to provide simple and improved means for visually informing the operator when a predetermined number of lines have been written upon the worksheet, and to indicate that the work-sheet has reached a position for the last line of writing thereon.

This object is attained by the employment of a scale in the form of a ring or annulus which is mounted at one end of the platen to rotate therewith and to be independently revoluble for relative adjustment, said ring being provided around its peripheral surface with numbered graduations which cor* respond in number with the teeth upon the line spacing wheel. These graduations pass by a fixed indicator. The numbers upon the ring are arranged progressively in the direction of the advancing rotation of the platen, so that with the worksheet inserted in the machine and the ring adjusted with its zero mark at the indicator, the ring may be rotated to bring a space thereon containing a numeral representing the number of lines it is desired to write upon the sheet to said indicator. Then upon operating the line-spacing mechanism until the platen has advanced the desired number of spaces, the ring will have advanced in those operations to bring its zero mark back to the indicator and will thus visually inform the operator that the desired number of lines has been written. The space containing the zero mark is preferably distinguished by bearing a contrasting color, so that the eye of the operator may be readily arrested thereby.

Another object is to indicate that the bottom edge of the work-sheet is just leaving the lower feed rolls, whereby the operator may know that only a certain number of lines may still be written before said bottom Specification of Letters Patent.

l Patented JV une 5, i917.. serial No. 858,434.

edge of the work-sheet will lAssuming the distance between said feed rolls and the printing'line upon the platen to be equal to five line spaces, then the space upon the ring bearing the numeral 5 may 'also have a distinguishing color, in tor may be readily informed of said fact.

Obviously the ring will be operative with work-sheets upon which a greater number of lines are required to be written than the number of spaces contained upon said ring. Assuming for example that the ring bears thirty-three spaces, and that forty-three lines are desired to be written, the ring should be adjusted with its numeral l0 at the indicator, the number ten being necessary in addition to the thirty-three spaces on the ring to complete the forty-three lines that are to be written. The platen will then rotate one revolution plus that portion of a revolution comprising ten line-spacing operations in order to bring the ring with its zero mark to the indicator; the passing of the zero mark at the end of the first ten spaces being allowed for by the operator.

Tn conjunction with the numbered ring aforesaid, my invention includes a further visu ual indication informing the operators, at certain stages in the progress of the work-sheet, of the number of lines remaining tobe written thereon in order that the operator may make due allowance. Numeral indications are arranged upon the paper table, or upon an attachment thereto, said numeral indications being consecutive and capable of exposure or indication as the bottom edge of the worksheet passes thereover or adjacent thereto in the feed of said work-sheet. The numbers aforesaid diminish consecutively downwardly and are exposed or indicated during the passage of the work-sheets thereover to designate the number of line-spaces remaining before the bottom edge of the worksheet reaches the point upon the platen where the last line of writing is to be performed.

The numeral indications at the introductory side of the platen may be provided on a numeral plate adjustable lengthwise of the platen to positions corresponding to the poorder that the opera- A sitions of the work-sheets along the platen.

into view in succession as lthe work-sheet is mkk advanced `,over the platen, each numeral when brought to viewindicating the num-- ber of line-spaces. remaining before the work-sheet reaches the` position for the last line of writing. The numeral plate may be provided with anup-turned ange, or other means enabling it to be gaged to the worksheet by being set up to the lateral edge of the work-sheet. used as a gage for 'positioning the worksheet to correspond with the setting of the gage, and squaring the sheet to the'platen. The numerals on said plate provide an index enabling the scale or numbering on the platen to be set to correspond to the position of the work-sheet.

Other features and advantages will hereinafter appear.

In the accompanying drawing,

Figure 1is a perspective elevation of that portion of a typewriting machine compris- Ling a platen, with the platen frame and associated parts, including my improved indicating means.

Fig. 2 is a vertical sectional view of the end portion of a platen with the adjustable computing yring thereon. n

Fig.r 3 is a detail view of the computing ring with indicator, showing the work-sheet leaving theL feed rolls.

Fig. l is a similar view showing the work-y sheet in position for writing the last line thereon.

Fig. 5 is an end elevation, partly in section,

showing the method of supporting the computing ring upon the platen. f Fig. 6 is a front elevation of the platen with indicating means, showing the method of indicating the number of lines remaining to be written upon a work-sheet.

1n the present example of my invention, it

is shown as arranged with relation to an` Underwood typewriting machine having a platen 1, line-spacing wheel 2, platen frame 3, paper table 4, and lower forward feed rolls 5. The paper fingers 6 with their rolls 7 bearing upon the platen surface are also illustrated, and the line of printing upon the platen is indicated by the position of a typebar 8.

The meanswhereby the number of lines desired to be written upon `a work-sheet may be registered to inform the operator of the completion of writing that number of lines, consists of a ring or cap 9, loosely tting over the periphery of the platen 1, at one end thereof, ythe drawing in this example showing said ring 9 applied to the righto graduations 10, forming spaces which contain numerals arranged consecutively from 1 to 32, the ordination ascending in the direction of theadvance rotation of the platen;

said ring having an exterior annular knurled Said ange may also bey portion 11, whereby it ymay be grasped for purposes of rotation in-adjustment. The

rring 9 has an inwardly directed flange portion 1'2 t0 lie over the platen end 13 and to be revolubly supported thereon, as by the heads of screws 14 secured in the platen end; said screw heads or the like serving to hold `the flange 12 from withdrawal while allowing the ring to be rotated. Tensional means are provided to retard or prevent the too free rotation of said ring 9, such for example as springs 15 inserted in recesses 16 in the' line-spacingoperations, the ring 9 will bean graduations representing thirty-three spaces,

and 1 have shown these spaces occupied respectively with the zero mark and the numerals from 1 to 32 inclusive. The zero space is to be pointed to by the indicator when the platen is line-spaced after completing the last line of writing upon the work-sheet, and the ring 9 may be turned by hand, after the work-sheet has been adjusted upon the platen to the position for the first line of writing, to bring in conjunction f with the indicator the numeral upon the 'ring representing the number of lines to be written, or the number representing the number of lines to be written in excess of the number of spaces upon the ring, whereupon when the plateny in its line-spacing operations within the limits of a complete revolution brings the zero upon the ring to the indicator, the operator will thereby be informed that the predetermined number of lines have been writf ten. When the number of lines to be written is in excess of the number of line-spaces comprised in a single revolution of the platen', then the first passing of the zero mark upon the ring will be noted, and writing will cease when said zero mark for the second time alines with the indicator, thereby denoting the completion of the predetermined number of lines of writing.

The space upon the ring bearing the zero mark may be distinguished as having a distinct or contrasting color, and similarly a space bearing a numeral which may represent the distance in line-spaces from the lower forward feed-rools to the printing line on the platen is similarly distinguished.

The paper table, as 4, bears upon its sur-- face certain numeral indications in upward sequence at line-space intervals apart to designate the distances in numbers of linespaces lying `between those numeral indicalos tions and the printing point on the platen through the path traveled by the work-sheet. These numeral indications are usually covered by the lower portion of the worksheet while its leading edge is advancing over the printing surface in the initial portion of its travel. But as the work-sheet continues to advance, of finally uncovers the aforesaid numeral indications in succession, and thereby affords positive information to the operator that there remain upon the work-sheet spaces for writing the number of lines represented by the particular numeral indication which the lower edge of covered or is in alinement with when noted.

The information thus furnished is valuable` in a corollary sense as a factor of information in informing they operator, in advance of the advice furnished by the ring 9 of the completion of the predetermined number of lines of writing, that, at the time when the lower edge of the work-sheet is passing from view over the paper table, a particular number of lines may at that stage still be written upon the work-sheet.

The index at the introductory side of the platen, comprises the numeral indications which are represented in Fig. l as inclusive of the remaining 18 to 26 line-spaces. These numerals are preferably carried on a numeral plate 18 adjustable along the paper table to correspond tothe position of the adjacent side edge` of the work-sheet. The numerals are thus positioned to always be covered by the work-sheet until the end edge\ of the worksheet passes beyond the numbers to expose them to view. As the numeral plate is gaged to the work-sheet, the numerals are uniformly positioned in coperative relation to each work-sheet, regardless of the position of the latter lengthwise of the platen. Each number is brought to View only as the work-sheet reaches the position to be designated by said number, and is then in immediate proximity to or in contact with the sheet, so that all liability 1s avoided of the index being incorrectly read by associating the wrong number with the sheet when the latter is at any particular position. l

The index at the paper table provides a convenient means for setting the index wheel on the platen, as it is simply necessary to set said wheel so that the index 17 points to the numeral on the wheel corresponding to the numeral disclosed to view at the end edge of the work-sheet. The index wheel may be thus set at any time after the work-sheet has passed beyond the highthe bottom edge therethe work-sheet has last unest number' on the index at the paper table, until the work-sheet has passed beyond the lowest number indicated on said table. If the work-sheet has been fed beyond the range of the numerals at said table before the index wheel has been set, the latter may still be set by rst rotating the platen backward to bring the work-sheet within the range of the numerals at said table, the index wheel being then set and the work-sheet again advanced to position for continuing the printing.

Variations may be resorted to within the scope of t-he invention, and portions of the improvements may be used without others.

Having thus describedvmy invention, I claim:

l. In a typewriting machine, the combination with a platen rotatable through linespaces of a predetermined extent, of a paper shelf at the introductory side of the platen, a side-gage for the work-sheets, said sidegage having a plate portion to underlie the work-sheet, said plate portion bearing numeral indications, each indication representing the number of lines which may still be written on a work-sheetV carried by the platen, said side-gage being adjustable along the paper shelf so as to be engageable by a work-sheet of any width, and so that each number is brought to view only as the worksheet reaches a position to be designated by said number, and so that said number is then in immediate proximity or in contact with the sheet, whereby liability of error in reading the indications is avoided.

2. In a typewriting machine, the combination with a rotary platen, of a rotary indicator mounted thereon, said indicator formed of sheet metal and comprising a ring surrounding the platen at the end thereof and extending a substantial distance beyond the platen end, the outer edge of the ring being curved inwardly toward the platen axis and backwardly toward the platen end and terminating in an annular iange lying Hat against the end of the platen, holding screws in the ends of the platen with their heads projecting over said liange to thereby hold the indicator on the platen to permit rotation thereof relatively to the platen, and springs interposed between said flange and the platen to frictionally retard the rotation of the indicator relative to the platen and cause it to rotate with the platen.

WALTER E. BARN ARD.

Witnesses:

W. O. WESTPHAL, J ULIUs DUoxsTINE.