US 1432696 A
Description (OCR text may contain errors)
W. F. HELMOND.
TYPEWRITING' MACHI NE.
APPLICATION FILED APR. I I. I9I9.
1 ,432, 696, Patented Oct. 17,1922.-
2 SHEETSSHEET I.
W. F. HELMOND.
APPLICATION FILED APR. 11, 1919 v v v v 2 SHEETS-SHEET 2.
n m WW m .lIl-IlllllllllrvlillVl-Illlll I trap; srarss PATENT unseat wrnnrnivr r. nnmvroun, or HAii'rFoRn, oo vnnorrou'r, ASSIGNOR TO UNDERWOOD rrrawrarrnn COMPANY, or NEW YORK, N. Y., A CORPORATION or DELAWARE.
Application filed April 11, 1919. SerialNo. 289,259.
To all whom it may concern."
Be it known that I, VILLIAM F. HEIMOND, a citizen of "the United States, residing in Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.
This invention relates to an improved paper-guiding device for a typewriting ma-' chine, and is herein illustrated as applied to a platen frame adapted for use with a machine of the Underwood front-strike type.
An object of the invention is to provide an improved adjustable guide for the side edge of the work-sheet, and means for supporting the same.
As herein disclosed, the invention provides for the construction-of such a guide, of a single piece of sheet-metal, whereby a substantial reduction of cost, as compared with that of guides previously in use, is effected. This construction also 'aids in elimlnating noise; The body of the guide extends clownwardly and forwardly, preferably lying directly in contact withthe table or papershelfof the typewriter, and is provided, preferably at one edge, with an upturned flange or paper-guiding element, forming a gage or guide for the side of the sheet. The guide "is continued upwardly and rearwardly, and curved to form a flexible neck extending over the usual bead on the papershelf, and down beneath the same. The rear end of said guide is preferably provided with a pair of offset ears having perforations therein, thus forming an attaching'portion adapted to fit upon a rod of non-cylindircal form which may be described as FD-shaped, half round, or segmental in cross-section, and with a narrow spring tongue projecting from said guide, between said ears, and curving around said rod sufficientlyto bring its 1 extremity against the flat surface of said guide may be adjusted when desired by lift rod, thus serving to hold the paper-guide against the front surface of the paper-shelf and frictionally opposing accidental displacement of the guide along the shelf. The
ing the same slightly from the paper-shelf,
and moving the same to right or left;
The supporting means for the paper-guidemay comprise the above-mentioned rod of segmental cross-section and a pairof brackets secured to the platen frame.
For con venience, in assembling the parts, one of said brackets may be provided with a circular opening, into which said rod may be inserted, and the other bracket provided with a D-shaped opening, to receive a reduced end of said rod. Any suitable means,
such as a screw, inserted into a threaded opening in the reduced end of the rod, may
be used to maintain the same in position.
It will be seen that the paper-guide and its mounting are simple, inexpensive and readlly applied to the platen frame, and that the structure is such as to facilitate elimination of noise during the operation of the machine.
Otherfeatures and advantages will hereinafter appear.
In the accompanying drawings,
Figure 1 is a perspective view of the platen frame of an Underwood typewriting machine, with my invention applied thereto.
' Figure 2 is an end view, partly in section, of the structure shown in Figure 1.
Figure 3 is aperspective view, showing my "improved paper-guide, and the guide bar on which it is mounted.
axle :2, mounted in end frames 3, which are connected by a paper-shelf or table l, hav
ing a bead 5, of the usual form, at one edge, and preferably secured to abar 7 and to said end frames by means of fastening devices, such as screws 8. Said end frames are also connected by means of a rod 9, fixed thereto.
The paper-shelf 4 is provided with a flat portion 10,at the rear, and a continuously arched portion 11, extending from said flat portion to the vicinity of the platen, the paper-shelf being connected at its forward edge to the end frames of the platen frame by any desired means, such as inwardly extending projections 12 on the end frames, and screws or other fastening devices 13. Associated with the platen are the usual pressure rolls 14 and a suitable guiding de vice 15 extending from the paper-shelf to the front of the platen.
Provision is also made of an edge guide 16, preferably of a single piece of sheetmetal, comprising a body portion having a flat portion 17, normally overlying. the fiat portion 10 of the paper-shelf, and an arched portion 18, forming a resilient neck curved over the bead at the rear edge of said papershelf and extending beneath the same. At the end of the arched portion or neck 18 upturned ears 19 are provided, having D- shaped or segmentaleshaped openings 20, and a spring tongue 21 extends from the arched portion 18 between the ears 19. The flat portion of the guide 16 is provided with an upstanding flange or guide 22 preferably at one edge thereof. Passing through the D-shaped openings of the offset ears 19 18 a D-shaped bar 241. having a flat surface 25- against which presses the spring tongue 21, referred to above. At one end said bar 24; is supported in a bracket 26, having a circular opening 26 of the same radius as the bar, and at the other end in a bracket 27, having a D-shaped or segmental-shaped opening 28 of smaller area than the crosssection of the bar, into which is fitted the reduced end 29 of said bar. neck portion 18 serves as spring means to press the flanged guiding portion 17 against the upper surface of the paper-table 4. The
bar 24 may be maintained in position by any suitable means, and preferably is provided with a threaded opening 30, into which is fitted a screw 31.
It will be seen that portion 11 of the paper-shelf is continuously arched from the line of demarkation between said portion 11 and the flat portion 10, so as to avoid having any fiat portion, and, consequently, to render the paper-table sufiiciently stiff, and to avoid any tendency to become noisy during the op eration of the machine. The forward edge of the edge guide 116 extends to said line of demarkation between the flat and arched portions of the paper-shelf. and, consequently, when the platen is turned back, the rear edge of the paper will be supported by the arched portion 11, so as to ride over the forward edge of the edge guide 16.
It will be seen that the extremity of the spring tongue 21 contacts with the rearward portion of the flat upper reari ardly-inclined surface 25 on said bar as, and that it tends,
therefore, not only to provide a frictional resistance to moving the edge guide. along said bar, but also tends to turn the edge guide about said bar, so as to press the forward edge of the guide against the papershelf. Such turning movement of the edge guide may also cause the paper-guide to hen it is desired to.
bind on the bar 24L adjust the position of the paper-guide, it
The resilient may be lifted slightly from the paper-table, and this movement, if not too great, will tend to remove the binding action between the paper-guide and the bar 2-1, and enable the paper-guide to be moved more easily. Also such lifting of the paper-guide will avoid any unnecessary scratching of the paper-table.
The arrangement by which bracket 26 is provided with a circular opening and bracket 27 with a segmental opening facilitates placing bar 2st in the machine, for the round bar, from which bar 24- is made, is substantially of uniform cross-section, and therefore can be passed through the circular opening without difficulty, whereas, if the openings in both brackets were of the same form as the cross-section, any slight variation in the position'of the fiat surface would cause binding and might interfere with the placing of the forward end in the second bracket into which it is inserted. Obviously, the means for preventing the bar from turning can be placed at either end, greater rigidity being obtained when the bar is securet against rotational movementat the end on which the edge guide is mounted.
Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.
Having thus described my invention, I claim:
1. A one-piece paper-guide for the paper shelf of a typewriting machine, comprising a body portion having offset ears provided with openings of such shape as to prevent substantial rotational movement of said guide about a bar having a cross section of the same general shape as. said openings, said body portion being curved to extend around the rear edge of the paper shelf, and being provided in the vicinity of said offset ears with a spring extension curved to e3:- tend in a direction around said bar with its end in contact therewith.
2. A paper-guide for the paper shelf of a typewriting machine, comprising a body portion having offsetears on the end portion curved to extend around the rearedge of the paper shelf, said ears being provided with, openings, each having a straight line forming a part of its perimeter, to permit said ears to be fitted over a supporting bar having a flat surface, and said body portion having a spring extension, the extremity of which is positioned to press on said flat surface, so as to tend to hold said guide against displacement along said bar, and'to move saidguide in a direction to cause its forward end to press against the paper shelf.
3. A papengnide for the paper shelf of a typewritlng machine, comprising a body portionprovided at its forward end with an upstanding flange, the rearward portion of .said guide being bent to extend around the a with offset ears and having openings therethrough, the perimeter of each of said openings including a straight line, to enable said ears to fit over a bar having a fiat surface, said rearward portion of said guide being also provided with a spring extensiomliaving its end in position to contact with said flat surface.
4:. A sheet-metal edge-guide for the paper shelf of a typewriting machine, comprising a flat portion adapted to co-operate with a corresponding flat portion of the paper 1 shelf, and having an upstanding flange, a
portion of said guide extending from said flat portion, arched to pass over a bead at the edge of the paper shelf, two ears offset from sides of said arched portion, and having openings adapted to fit over a supporting bar, and a curved spring tongue extending from said arched portion at a point between said ears, and having its extremity in position to engage and press on said bar.
5. In a typewriting machine, in combination, a paper-table, a non-rotative supporting bar extending in spaced relation along the rear edge thereof and having a noncylindrical cross-sectional form, and a paper-guide having an attaching portion slidably but non-rotatably directly connected with said bar, so that said bar holds said guide against substantial rotative movement a body portion to rest against the face of said table, a paper-guiding element projecting upwardly from said body portion,
a resilient neck portion connecting said body portion with said attaching portion and serving as spring means to normally resiliently hold the former firmly pressed against the upper surface of said table, and a spring tongue extending from said neck portion adjacent said attaching portion and having an end normally pressed into frictional contact with the non-cylindrical surface of said bar, so as to tend to hold said guide against displacement along said bar, the surface of contact between said tongue and bar being so related with respect to the center of attachment between said guide and said bar as to aid in holding said guide pressed firmly against said table.
JOHN J. BASKERVILLE, \VILLIAM P. SMITH.