US2002075A - Typewriting machine - Google Patents

Description

y 1935- s. BERGER 2,002,075

TYPEWRITING MACHINE Filed Sept. 14, 1952 4 Sheets-Sheet .i

ATTORNEY May 21, 1935. s. BERGER TYP EWRITING MACHINE Filed Sept. 14, 1952 4 Sheets-Sheet 2 WU m INVENOR.

, N. 0' 6 ATTORNEY May 21, 1935. s. l. BERGER TYPEWRITING MACHINE Filed Sept. 14, 1932 4 Sheets-Sheet 3 will ATTORNEY May 21, 1935. 0 s. I. BERGER TYPEWRITINGMACHINE 4 Sheets-Sheet 4 Bygg Filed .Sept. 14, 1932 INV-E 0R.

' Patented May 21,1935

PATENT OFFICE mnwmrmc mom Samuel I. Berger, ne us, N. J.

4 Claim.

This invention relates to typewriters, and more particularly to a toy typewriter which may be manufactured at a low cost. 1

It is an object of this invention to. provide a typewriting machine of rugged structure and positive in action, which can be readily and conveniently assembled and manufactured at a low cost.

. Afurther object is the provision of a toy typewriting machine having a novel arrangement of a platen and a type wheel in aplane perpendicular to the platen, with means for positively moving the -typewheel int-3 contact with the platen to insure a uniform impression at all times.

A furtherobject is the provision of means for automatically and uniformly inking the type of a toy typewriting machine immediately preceding each impression.

A further object is the provision in a toy typewriting machine of improved means for accurately and positively moving a" carriage step by step for letter spacing purposes.

A further object is the provision of a simple and inexpensive carriage for a typewriting machine, the carriage supporting a stationary platen and having novel line spacing and paper holding means.

These and other advantageous objects, which will later appear, are accomplished by the simple and practical construction and arrangement of parts hereinafter described and'exhibited in the accompanying drawings, forming part hereof, and in which:

machine embodying my invention; Fig. 2 is a sectional view taken on line 2--2 of Fig. 3,

Fig. 3 is a plan view, partially in section, taken on line 3-3 of Fig. 2, 40 Fig. 4 is an exploded perspective view of the typewriting machine. I

Fig. 5 is a perspective view showing details of the machine,

Fig. 6 is a perspective view of an element of the machine,

Figs. '7 and 8 are perspective views of a carriage used in the typewriting machine,

Fig. 9 is an exploded perspective view showing details of the carriage,

Fig. 10 is a plan view of a symbol indicator used in the machine,

Fig. 11 is a fragmentary view of a type wheelshaft 22 to rotate therewith. The lever." has included in the machine,

55 -12 is a bottom view of a portion of the Fig. l is an elevational view of a typewriting Application September 14, 19:2. SerialNo. 033.105

machine showing details of a letter spacing device, and

Figs. l3, l4 and 15 are plan views showing the positions assumed by certain partsof theletter spacingdevice' while moving the carriage one 5 space.

Referring to the drawings the typewriting machine is shown to include a base i6 having a plurality of slots i'l arranged to receive tangs it on the lower edges of a small casing is and side 10 supports 20.

The pair of vertical side supports 20 (Fig. 4) are spaced apart, "and each has an arcuate slot 2i in which moves a pin 23. A squared shaft 22 is also rotatably mounted in the side supports 20 16 (see Fig. 2).

Referring to Fig. 5, it will be seen that the pin 23 pivotally connects the legs of a U-shaped member 24 to a pair of lin ks 23, which are also pivotally connected by, a pin 21 to a rockabie 20 frame 28,'the latter being pivoted on a pin 29 iournalled in the supports 20.

In the side walls of the frame 23 is journalled a shaft 30, having fixed thereto a type wheel 3i and a gear 31, which meshes with a 25 gear 36. The gears 31 and 36 are at right angles to each other. The gear 36 is formed on a plate which is attached by means of eyelets 35 to and moves with a plate 33. The plates 33 and 35 are rotatably mounted, by means of an eyelet .30 34, on a cross-bar 32, of the frame 28.

Pivotally supported by shaft 30,, are the legs v 33 of a. U-shaped member, the legs 38 having slots 33 through which pass the ends of al coiled spring 40. Mounted rotatably on the upper end i? 40' of the spring is an inking roller ll, which is preferably made from an ink absorbing material and is maintained in contact with the periphery of the type wheel 3i by the action of spring 40. A rod 42 is connected to one of the 40 legs 33 and to the side support 20.

Pivotally supported by pin 23 is an arm 43, having at its free end a pawl 44 which is maintained in engagement with gear 31 by a spring 35, which is connected to the arm 43 and to the 45 frame 23.

Pivotally connected to the pin-21 is a link 45, which is also connected to a lever 41 rotatably supported on the squared shaft 22. The lever 41 has an arcute slot 33 in which moves the bent. end' 49 of a rod 53. The end 49 of the rod isalso connected to an arm 52 having a right angularly directed portion mounted on the squared a similar right angularly directed portion Si 55 through which the sum 22 passes freely, the lever 41 moving independently of shaft 22. Shaft 22 has anangularly directed arm 5mm the ex,-

tremity of 'which is attached a finger-piece 55.

Referring to Fig. 12, the rod 58 is connected to one arm of a bell crank 56 pivotally supported by the casing l9, the other arm of the bell crank being pivotally connected to an armv 51 having a toothed extremity ,58 directed at right angles to the wall 8| o1 casing l9 and passing "through a slot 59 in the casing, the slot 59 having a greater width than the extremity 58 to enable the latter to move laterally as well as in and out of the slot. The outward movement of the extremity 58 is limited by a shoulder 68 on the arm "5 the shoulder engaging the wall 6| of casing l9. The bell crank and arm are normally maintained in the position shown in Fig. 12, that is, with the toothed extremity 58- projecting outwardly as far as it will go, by a spring 62, which is connected to the bell crank 56 and to the casing l9.

A bar 63 is positioned in the casing 19 adjacent the arm 51. The bar 83 passes-through a slot 64in the wall 6| and has a toothed extremity 65. The opposite end of the bar is enlarged at 66 and passes through a slot inthe wall 61 of l9, the enlarged portion 66 having a flange 68 which bears against a bowed spring 69 attached to the wall 61. t

When the rod 58 is moved downwardly (see 7 Fig. 12) the bell crank 56 is rotated clockwise to channels 12, in which slide the flanges 13 of a carriage 14, which has a plurality, of spaced in- 'dentations 15, to receive the toothed members 58 and 65. Attached tothe carriage is a. pap r guide plate 16, having attached thereto end members 11'; which support an. arcuate member with the end members 11..

Struck out from the plate 16 are two spaced forked bearings 82, supporting a shaft 83 to which is attached a pair of. rollers 84, which project through the apertures 85 in plate 16 to engagev rollers'86 fixed to a squared shaft 81,

the latter being supported by and passing through the end members 11. The rollers 84- and 86 are maintained in engagement by the action of a bowed spring 88 which bears against the shaft 83 and is attached to the carriage 14. The plate 16 is provided at its ends with ears 89 which also support the shaft 81 and increase the rigidity of the structure. Y

Fixed to the ends of shaft 81 are knobs 98, one of which has about its periphery a plurality of spaced indentations 9| which cooperate with a rounded lug 9| on a flat spring 92 to normally prevent free rotation of the shaft 81. Also mounted on the shaft 81 is a U-shaped member Fig. 10, theletter A will bet impression of the symbol 0 the paper, a finger Paper is inserted in the device as shown in dotted in Fig. 2, the paper passing between the rollers 86 and 84, over the platen 88, and under the bar 93. The paper may be advanced, line by line, by rotating the knobs 98 to produce a step by step movement due to the engagement of the lug 9| on the spring 92 with the indentations 9|.

above described. The plate 33, which has the letters of the alphabet, numerals and other symbols printed thereon as shown in Fig. 10, is rotated until the symbol desired to be typed lies between the forks of the ,indicator 95, which is integral with the frame 28. The carriage has a scale 96 printed thereon, and the pointof printing of the letter is' indicated by apointer 91 attached to the side supports 28. In the example shown in ed. To make an piece 25 is depressed, the finger piece being rotatably mounted on the shaft 22, having a lug 98 which bears on the member 24 to cause the latter to move downward, which movement, through the links '26, causes-ccunter-clockwise rotation of theframe 28, to bring the type wheel 3| in contact with the paper directly above the platen 88. The downward movement of member 24 is limited by contact with a rod l6 mounted on the side supports 28. As the frame rotates counter-clockwise (see Fig. 4), the rod 42 prevents similar rotation of the U-shaped member 38, and the latter moves in a clockwise direction and causes the inking roller to pass over the type and ink the symbols before each impression. This arrangement insures uniform and positive inking at all times, it only being necessary to moisten the roller 4| with ink from time to time.

During the downward movement above described, the link 46 rotates lever 41 counter clockwise to draw the rod 58 to the right (Fig. 5) or downward (Fig. 12) to move the toothed extremity 58 from engagement with the indentations 15,

and laterally. When presure is relieved on the finger piece 25, a spring 99, connected to the member 91 and to the pin 21, returns the parts to their normal position, as shown in Fig. 2. During the return to the normal position, the toothed member 58 moves upward (Fig.2) to engage the indentations 15 and laterally to the left to move the carriage to the left the space of one letter, (see Figs. 13, and 14). Slipping of the carriage is prevented by the toothed member 65 which ratchets over the indentations during the move- 'ment of the carriage by member 58. V When it is desired to move the carriage space by space without printing a symbol, the fingerpiece is depressed to" rotate shaft 22 to rotate arm 52 clockwise (see Fig. 6) to pull on rod 58, the lever 41 not being affected due to the lost motion connection enabled bythe arcuate slot 48. Depressing of finger-piece will cause the toothed extremity 58 to move the carriage step by step as above described. Should it be desired to freely move the carriage without the step by step movement, the finger-piece 55/is depressed as far as possible to cause the lug 18 to engage enlarged portion 66 ,of bar 63 to withdraw both toothed members 58 and 65 from engagement with the indentations 15 as shown in Fig. 15.

The type wheel 3| comprises a metal band I88 having the desired symbols embossed thereon, the edges of the band being crimped between the edges of the side plate -|8, as shown in Fig. 11.

The gears 31 and 36 have a number of teeth equal In operation, a sheet of paper is inserted as to the number of symbols on plate 33, and the plate 33 and type wheel 3i are so arranged that the symbol appearing between the forks of member 95 will be the symbol on the type wheel in position to be printed. Any desired symbol may be brought into printing position by rotating the plate 33 to rotate gears 36, 31 and the wheel 3|.

The bar 93 normally holds the paper in a smooth condition to enable the making of a clear impression. When the knobs are rotated the legs 94 are pressed toward each other to cause the bar 93 to bow outwardly to release the paper so that it may freely move.

At each end of one of the flanges 13 on the carriage are lugs 13' arranged to engage a stop 12 on one of the channels 12, to limit the movement of the carriage in both directions. In. assembling the carriage and base I6, the stop 12' is bent outwardly from the path of lugs'13' until the carriage has been slid into position on the base. after which the stop 12' is bent into the path of lugs 13' to limit the movement of the carriage.

The parts are preferably of thin sheet metal, which can be easily bent, and the arrangement of tabs and slots as shown in the drawings enables convenient and ready assembling. I

From the above description it will be seen that there has been presented a simple and inexpensive typewriting machine which is accurate and positive in operation, havinga rugged structure with practically no parts to get out of order.

While the machine herein described is intended primarily for use as a toy, it is obvious that the features embodied therein can effectively be applied to other typewriting machines without departing from the spirit of the invention.

The foregoing disclosure is to be regarded as descriptive and illustrative and not as restrictive or limitative of tlie invention, of which obviously an embodiment may be constructed in-,

cluding many modifications without f departing from the general scope herein indicated and'denoted in the appended claims.

Having thus described invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a typewriting machine, a wheel having type arranged e nt its periphery, a shaft to which the wheel is fixed, a frame in which the shaft is journalled, supports upon which the frame is pivotally mounted, a U-shaped member having its legs rotatably mounted on the shaft, a rod connected tothe member and to a fixed support, an inking roller carried by the member, resilient means to maintain the inking roller in engagement with the typ and means torotate the frame in one to provide tion, said member being caused to'rotate automatically in an opposite direction.

2. In a typewriting machine, a rockable frame having a pair of spaced parallel side walls, a

one direction, said member being caused to rotate in an opposite direction.

,3. In a typewriting machine, a wheel having type arranged about its periphery, a plate rotatably mounted at right angles to the plate of the wheel and having symbols arranged thereon corresponding to the symbols of type on the wheel,.

gear means connecting the wheel and plate so that a movement of the plate will be transmitted to the wheel, a carriage, an arcuate strip mounted on the carriage and having spaced apertures a shaft journalled in said bearings, rollers fixed to the shaft and projecting partially through the apertures, a second shaft supported on the other side of the strip, rollers mounted on the second shaft and engaging the first mentioned rollers, resilient means urging said rollers into engagement, aplaten mounted-on the carriage and positioned in a plane at right angles to the plane of the wheel, and means to move the type wheel into contact with the platen.

4. In a typewriting machine, a wheel having type arranged about its periphery, a plate rotatably mountedat right angles, to the plate of the wheel and hav g symbols arranged thereon corresponding tothe symbols of type on the wheel, gear means connecting the wheel and plate so that's movement of the plate will be transmitted to the wheel, a carriage, an arcuate strip mounted on the carriage and having portions struckout apertures and hearings on one side of a shaft journalled in the bearings, and Projecting P rti through the apertures, a second shaft supported on the other side of the strip, rollers on the second shaft engaging the first mentioned rollers, knobs attached to the second shaft, one of said knobs having equally spaced indentations about its periphery, resilient detent means engaging said indentations, a platen mounted on the carriage and positioned in a plane at right angles to the plane of the wheel, and means to move the type wheel into contact with-the platen.

summpanacea.

said strip, rollers on the shaft therein, bearings on one side of said member,

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