US588493A - Type-writing machine - Google Patents

Description

(No Model.) 3 SheetsSheet 1.

J. G. SINCLAIR. TYPE WRITING MACHINE.

Patented Aug. 17,1897.

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3 Sheets-Sheet 2.

-(No Model.)

Patented Aug. 17,1897.

Wf/VZfjfi QM 3mm (No Model.) 3 Sheets-Sheet 3.

J. C. SINCLAIR. TYPE WRITING MACHINE.

Patented Aug. 1'7, 1897.

I II

UNITE STATES TENT Fries.

JEREMIAH .C. SINCLAIR, OF ELMORE, OHIO.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 588,493, dated August 17, 1897. Application filed July 13, 1896. Serial No. 598,931. (No model.)

To all whom itmtty concern.-

Be it known that I, JEREMIAH O. SINCLAIR, of Elmore, county of Ottawa, and State of Ohio, have invented certain new and useful Improvements in Type -VVriters; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in'the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form part of this specification.

My invention relates to a type-writer, and has for its object to provide a mechanism in which the matter written shall be open to visual inspection without raising the carriage.

A further object is to provide a curved plate having pivotal points for the key and type-lever mechanism, whereby the articulation of these levers shall-be such as to effect a movement in the are of a circle respectively to cause the type to strike the paper in a horizontal line immediately in front of the operator.

A further object is to so articulate the typebars that the type shall fall in front of the carriage in convenient position for observation or cleaning.

A further object is to provide an inking pad or roller controllable by the operator, whereby the act of spacing shall ink the type.

A further object is to provide a type-bar hanger having convenient means of adjustment to compensate for wear.

A further object is to tilt the carriage with a movement in the arc of a circle with respect to its pivot-point to print from the upper case when desired.

A further object is to simplify the construction and produce a machine at minimum expense capable of more rapid and satisfactory operation than heretofore.

The invention therefore consists in the parts and combination of parts, as hereinafter shown, described, and claimed.

In the drawings, Figure 1 is a perspective view of the essential parts of the machine in illustration of the operation of a key-lever and type-lever, also showing the spacing-bar and inking-pad shaft in connection therewith, also showing the shift-rods attached to a crossbar which carries the scale whereby the carriage is tilted for upper-case letters. Fig. 2 is a longitudinal vertical section showing the various parts, also showing one of the typebars in the act of striking and in dotted lines the position of the platen when raised. Fig.

3 is a front elevation of the curved frameplate to which the type-bar hangers are attached, also illustrating the position of the platen in reference thereto. Fig. 4 is a side sectional elevation of the type-bar hanger, showing a type-bar, key-bar, and the lever connection therewith. Fig. 5 is a like view of the hanger, illustrating a modified construction. Fig. 6 is an elevation of the keylever and its attachment to the frame, the latter being shown in section. Fig. 7 illus trates a modification comprising an inkingroller for inking the type. Fig. 8 is a detail view of a portion of the frame, illustrating a construction of type-cleaner in section secured thereto. Fig. 9 is a sectional side elevation of-the same.

1 designates a bed-frame having risers 2, upon whichis secured a carriage 3, having any preferred means for moving the same transversely of the frame and having the platen-roller 4 journaled thereom .5 designates a curved plate secured to the frame transversely thereof at each end and having means for securing the type-bar hangers thereto, the object of this arrangement being to so articulate the key-lever and typebars, respectively, that a downward push upon the key-lever will efiect a stroke of the type upon the-platen at a point to allow of visual inspection of the matter printed by the operator while in the act of adding thereto.

6 designates hangers secured to the plate by means of screws '7, each hanger being formed with a bottom plate 8 and side plates 9, each end of the bottom plate 8 having depending flanges'lO, which, together with the bottom plate 8, form a recess to receive the body of the curved plate 5, the parts being held in assembled relation by the screws 7, passing through orifices in the depending flanges 10 and the body of the plate 5.

Each side plate 9 of the hanger 6 is slitted vertically, which divides the hanger into preferably three divisions, each of which is provided with an orifice 9 near-the upper end,

through which passes a screw-bolt 9, upon which are journaled right-angled arms 11, it being understood that there are three of these arms in each hanger 6, which are arranged in different transverse planes.

Secured to one end 11 of said right-angled arm 11 is a type-bar 12, having secured at its opposite end a type-head 13, and secured to the opposite end 11 of the right-angled arm 11 is a rod 14, attached at its opposite end to the vertical arm of a right-angled key-lever 15, whereby a pull upon rod 14 will rock the right-angled arm 11 upon its pivot 9 and cause the type-bar to move in the are of a circle and the type-head 13 to contact with the platen or paper thereon. Key-levers 15 are right angled in formation and fulcrumed at an angle upon a transverse rod 16, journaled at each end in the frame, there being a spring 17, arranged to normally elevate the horizontal arm 15" of the key'lever to hold the typebars to their normally-lowered position. This normal position of the type-bars allows of ready access and visual inspection when in the act of cleaning the type.

To avoid noise and undue impact and to hold the type in proper alinement when in their lowered position, I have arranged a bar 18, covered with rubber or other flexible material 19 and attached at the extremities thereof to the side of the frame.

20 designates the spacing-levers, fulcrnmed upon the rod 16 at each end thereof, said spacing-levers being right angled in form, the vertical portion 21 of each lever carrying a transverse bar 22, connected at each end thereto, said bar normally abutting against the rear sides of the vertical portion 15 of the keylevers, and secured to said bar 22 and to any suitable spacing mechanism is a rod 23.

2t is an inkingpad pivoted upon a transverse shaft 25, and depending therefrom, at each end, are arms 25, and connecting said arms 25 and a lever 26, pivoted to the frame at 26', are rods 27, whereby when the lever 20 is depressed the inking-pad Qi is caused to revolve in the arc of a circle and bear upon the type, thereby inking the same. The inking-pad 2 1 is preferably constructed of a body portion of metal or other rigid material and of a curvature corresponding with that of the type when in their normally-lowered position and is covered upon the front side with a material which absorbs the ink.

Levers 20, which operate the spacing mechanism, are placed directly under the forward end of the levers 26. Therefore upon the depression of the levers 26 two operations are accomplished-to wit, the inking of the type and the spacing of the carriage. Therefore it will be seen thatby this arrangement the type are inked every time it is necessary to space.

28 designates a transverse bar upon which the roller 20, which supports the carriageframe 3, rests.

30 designates rods secu red to the side frames in bearings having a vertical movement therein, the upper end of said bars being secured to and carrying the transverse bar 28, the lower end resting upon the end of a shifting lever 31, pivotally secured to the frame at 32, the forward end having secured thereto a finger-bar 33, by which means the forward end is depressed.

The operation to shift the carriage vertically to present the platen to the upper or lower case, as desired, will be readily apparent, as it is only necessary to depress the forward end 33, which raises the rods 30 and consequently the transverse bar 28, which tilts the carriage and consequently raises the platen, as shown in dotted lines, Fig. 2.

In the construction of hanger shown in Fig. 4:, wherein the fulcrums of the plurality of type-levers secured to each hanger are in the same horizontal plane, it is necessary in order that the type strike against the platen at a given vertical point that they be of substantially the same length, as the platen is almost directly over the hanger. Therefore the type when in a horizontal position against the bar 18 will be in different horizontal planesthat is, the type-bars being hinged to the hanger at three different points, there will consequentl y be three rows of type when they bear normally against the bar 18. This construction will necessitate an inking-pad of a width to contact with all of the type-faces.

In-Fig. 5 I have illustrated a modification in which the pivotal points of the type-lever are at a right angle to the line between the striking-point against the platen and the desired position at which the type rest when the machine'is not in operation. By this construction when at rest the type will lie in one line across'the machine and will all strike at a given point upon the platen. By this construction the inking-pad need only be the width of one type-face.

In Fig. 7 is illustrated an apparent modification of my invention, in which an inkingroller 3i is employed in lieu of the construction of inking-pad heretofore described. In this construction I employ a roller 34, having an inverted conical taper from the center to form a contour coincident with the face of the type when at rest, and so journal the same in a right-angled hanger 34, pivoted at the angle of the hanger, that when connected with the space-bar the tendency will be, when the space-bar is depressed, to effect a revolution of this inking-roller upon the type, therebypresenting a new face of the inking-roller upon every depression of the space-bar.

In Figs. 8 and 9 is illustrated the construction of the cleaning-brush, which comprises a shaft 35, which rests in the bearings 36, integral with the side of the machine, and secured upon said shaft through the medium of a spring 37 is a rotary brush 38.

The operation of the brush is as follows: The brush being previously wound is placed upon the machine in the bearings 36, and

' when released the spring 37 will have a tendency to rapidly revolve the brush, which engages with the type, cleaning the same.

What I claim is 1. In a type-writer, a carriage, a platen carried thereby, a bed-frame, a downwardly curved fiat plate arranged transversely and secured to the bed-frame, a plurality of hangers secured to the plate, each hanger comprising a base, having downwardly-projecting ears upon each side which, when the base is flush with the plate, embrace both sides of the plate, orifices in the ears and transversely through the plate screws passing through the ears and the plate, key-levers pivotally secured in the frame, type-bars pivotally secured in the hangers and rods connecting the key-levers and type-bars, whereby the type-levers move in an arc of a circle to contact with the platen.

2. In-a type-writer, a bed-frame, a transverse plate, secured thereto, a plurality of type-bars pivotally arranged with reference to the plate to normally rest in the arc of a circle, type and characters fixed thereon,keylevers for operating the type-bars, mechanism for inking the type and characters, simultaneously with the operation of spacing when the type-levers are idle,a spacing mechanism operated simultaneously with the typelevers and also with the inking mechanism.

3. In a type-writer, a carriage, a platen carried thereby, type-bars having type secured thereon in upper and lower case relation, and journaled to move in the arc of a circle to normally present one of the case of type to the platen, and means for tilting the platen, comprising a vertical movable transverse bar, upon which the forward part of the carriage is supported, rods secured in the frame upon which the bar rests, and a shifting-lever pivotally secured to the frame in alinement with the rods, and springs upon the rods to normally hold the rods, and consequently the platen, in a lowered position.

4. In a type-writer, a frame, a bearing integral therewith, a shaft journaled in the bearing, a rotary brush secured upon the shaft through the medium of an interposed spring by which the brush is revolved.

In testimony that I claim the foregoing as my own I hereby affix my signature in presence of two witnesses.

JEREMIAH O. SINCLAIR. Witnesses:

CARROLL J. WEBSTER, MAUD ScHUMAcHER.

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