US1957373A - Toy typewriter - Google Patents

Description

May 1, 1934- I s. A. THOMPSON I 1,957,373 v TOY TYPEWRITER Filed April 15, 1955 2 Sheets-Sheet l /3 37 n l j( @133113111113111 3311111311133333311311311313 o 2 4 6 a lolz 11116133211222112628 'o 2 353Mo i: 'e 850525455586 I l ATTOINEY May l, 1934. l s. A. THOMPSON 1,957,373

v ,TOY TYPEWRITER Filed April 1s, 193s 2 sheetssheet 2 56 view, reference is Patented May 1, 1934 OFFICE 'PATENT 1,957,373 TOY TYPEWRITEB Samuel A. Thompson, New York, N. Y. Application April 13, 1933, Serial No. 666,047 4 Claims. (Cl. 197-46) This invention relates to toy typewriters and embodies certain improvements upon those of the type set forth in my prior United States Letters Patent Nos. 1,138,427, granted May 4,

1915, 1,521,408, granted December 30, 1924, and

1,865,288, `granted June 28, 1932. y

The invention broadly comprehends a toy typewriter, in which the usual rotary depressible printing assemblage carrying the inked type 1c faces is xed against lateral movement with reference to the supportingbase, and in which the paper supporting member or carriage is mounted for guided lateral movement on the base in either direction by a direct manual action or is movable laterally in one direction by virtue of coacting means rendered effective by the depression of the printing assemblage. s

The invention more particularly resides in an improved mounting for the rotary depressible 2'0 printing assemblage, so that said assemblage is optionally supported in a normal intermediate position spaced above the platen surface of the paper supporting member or carriage, and which mounting is so constructed as to tension the assemblage against downward movement while serving to elevate the assemblage to said normal intermediate position and permitting the uninfluenced free swinging movement of the assemblage to a further elevated position and from said latter position to the intermediate position.

As a further feature, the improved manner of mounting the rotary depressible printing assemblage eeots the drawing of the assemblage to a predetermined position so as to insure theimpression of the type on the paper in a proper and uniform line irrespective of an exact lit. of the trunnions in the trunnion bearings.

As a further feature, theinvention contemplates a guided mounting for the paper support or carriage, which embodies friction means functioning to prevent retrograde movement of the carriage by the pawl action when the carriage is automatically fed in the proper direction upon depression of the printing assemblage, and this .1,5v without unduly retarding movement of the carriage or paper support by direct manual action.

Other objects of the invention reside in the simplicity of the construction of the improved article, the economy with which it may be produced and the provision of a toy typewriter which is more attractive, in view of the fact that it more closely simulates the action of a full sized typewriter.

With the aboverecited and other objects in had to the following descripinvention, while the claims tion and accompanying drawings, in which there is exhibited one example or embodiment of the de ne the actual scope of the same. Y

In the drawings:

Figure 1 is a plan view of a toy typewriter constructed in accordance with the present invention.

Figure 2 is an enlarged cross sectional 4view therethrough taken approximately on the line vindicated at 2-2 in Figure l.

Figure 3 is a rear view of the typewriter.

Figure 4 is a substantially horizontal sectional view taken approximately on the line indicated at 4-4 in Figure 2. 70

Figure 5 is a similar view taken approximately on the line 5-5 of Figure 2.

Referring to the drawings by characters of reference, A designates generally the base of the typewriter, B the paper support or carriage, and C the rotary depressible printing assemblage.

As shown, the paper supportor carriage B includes a body 10, a portion of the upper surface 11 of which serves as a platen upon which the paper P liesy during .the typewriting operation. The body 10 is formed at the bottom with longitudi- `nally extending outwardly projecting flanges 12 which engage in 'de channels 13 formed at the opposite edges of the plate 14 rwhich is attached to the upper surface of the base A, and by virtue of which the carriage is mounted on the base for guided lateral movement. The paper support or carriage is provided with the usual rollers -15 and 16 for feeding the paper over the upper or platen surface 11 of the body 10. In 90 order to provide means for setting up a frictionalf. engagement with one of the guide channels 13 so as to retard the lateral sliding movement of the paper support or carriage to some extent, a member 17 is mounted on the lower wall 18 of the carriage body and is provided with a downwardly oiset portion 19 which overlies one of the ilanges 12 and is interposedbetween said ange and the upper leg of the guide channel 13. The member l1'1 is urgedl outwardly by means of springs 20 so that the free edge of the downwardly offset portion 19 engages with the bight portion of the guide channel 13 and is impinged thereagainst to set up a frictional action for the purpose specied. Obviously, this frictional action, while retarding and preventing a completely free sliding movement of the carriage laterally, does not appreciably interfere with the direct manual movementv of the carriage.

The rotary compressible printing assemblage 110 disclosed in my is of substantially the same construction as that previous patents above referred to, with the exception of the improved mounting and the fact that said element is fixed against lateral movement while functioning through coacting means respectively carried thereby and provided on the carriage or paper support to effect the feeding of the carriage and automatic spacing of the printing on the paper. 'I'he assemblage C includes the usual rotary disk 25 having the flexible marginal portion 26 carrying on the under surface the type 27 and a non-rotary base 23, on which the disk is journaled as at 29 to be rotated relatively for disposing the selected type in registry with an aperture 30 in the forward extension 31 of said base portion. The base portion 28 is provided with laterally spaced depending ears 32, the apertures 33 of which receive and serve as bearings for the lateral outwardly projecting trunnions 34 of an upstanding bracket 35 which is xecl to the base A. Obviously, this mounts the assemblage C on the base for vertical swinging movement on the horizontal axes or trunnions 34. The extension 31 carries on its under side a spring pressed feed pawl 36 and the carriage has secured to and spaced from its upper surface a longitudinally extending rack 37, the teeth 38 right, as shown in Figure 1, so that depression of the assemblage C effects the feed of the carriage B `to the left in Figure 1 in a step by step movement, it being understood that the printing on the paper is only effected if the operator presses on the margin 26 of the disk while pressure on the extension 31 effects a spacing without printing.

'I'he mounting for the assemblage further includes means which functions to normally dispose the forward portion of the assemblage C in what may be termed an intermediate position spaced above the carriage, which position is illustrated in full lines in Figure 2, while said means further functions to tension the assemblage againstA downward movement and acts when moved downwardly or depressed, as shown in broken lines in Figure 2, to elevate or return said assemblage to the normal intermediate position shown in full lines in Figure 2. This means also permits of an uninluenced free swinging movement of the assemblage to a completely raised and a substantially vertical position, as illustrated in dotted lines in Figure 2, and allows the assemblage to b'e moved from said latter position to the intermediate position uninfluenced by said means. 'Ihe means, the function of which has been just described, consists of an angulated member 40, the base ange 41 of whieh is mounted for front and rear limited movement on the under side of the base portion 28 of the assemblage and is limited in its movement by means of depending lugs 42 which cooperate with apertured portions 43 of the base fiange. Coiled contractile springs 44 are attached at their opposite ends respectively to the base portion 28 and to the base flange 41 to draw the angle element forwardly and impinge the depending flange 45 against the rear face of the vbracket 35 at the upper end. In so acting, the springs 44 set up a reactive thrust which tends to move the completed assemblage C rearwardly during the depression of the assemblage so that the trunnions engage with the forward portion of the bearing openings 33 and thereby insure a proper uniform line of the type in the paper, irrespective of an exact t of the trunnions 34 in the trunnion bearing openings. Obviously, as the assemblage of which are inclined to the C is depressed from the normal intermediate position illustrated in Figure 2 to the lowered position illustrated in broken lines, the depending ange 45 engaging with the upper end of the bracket 35 places the springs 44 under tension, so that when pressure on the assemblage C is released, the springs return or elevate the assemblage. It should, however, be noted that due to the relative location of the depending ange with reference to the trunnions or axes and with reference to the upper edge of the bracket 35, swinging movement of the assemblage C to the further elevated or vertical position and from said position back to the intermediate position` is totally uninuenced by the springs. This permits the movement of the assemblage C to a complete out-of-the-way position for clearly observing the matter which has been printed on the paper and for facilitating the introduction and removal of the paper.

During the downward depression of the assemblage to effect the printing, the exible marginal portion 26 is initially moved downward when the nger contacts therewith and` through engagement with the base part 28 moves the forward portion of the complete assemblage downwardly with the type 27 protruding through the opening 30. The pawl 36 contacts with the teeth 38 of the rack 37 and accomplishes the lateral feed of the carriage B before the type contacts with the paper. Obviously, the reactive movement of the pawl by its spring would have a tendency to feed the carriage B in a reverse direction were it not for the fact that the friction means previously described exerts a greater force than this reactive force of the pawl, and, hence, after the pawl has fed the carriage laterally to the left, the friction means serves to retain the carriage in the position to which it has been moved.

From the foregoing, it will be seen that certain improvements have been devised in toy typewritersof the indicated character. and while there has been illustrated and described a preferred embodiment of the invention, it is understood that changes and modifications thereof which fall within the scope of the claims may 'be resorted to when desired.

What is claimed is:

1. In a typewriter, a base, afixed bracket on said base, a typing assemblage mounted on said bracket to swing on a horizontal axis, a plate member on the underside of said assemblage, tension springs connected with the assemblage and said plate member, and means on the plate member engageable with said bracket, to build up reactive tension of said springs during` the movement of the assemblage into typing position.

2. In a typewriter, a base, a fixed bracket on said base, a typing assemblage mounted on said bracket to swing on a horizontal axis, a plate member having apertures therein, lugs carried by said assemblage projecting downwardly through said apertures respectively so that the plate may move forwardly and rearwardly with respect to said assemblage, said lugs being engageable with the plate member to Alimit its forward movement tension springs disposed below said plate member in proximity thereto, each of said springs having one end connected with said assemblage and its other end connected with said plate member, and means on the plate member engageable with said bracket to build up reactive tension of said springs during the movement of the assemblage into typing position.

with respect to said assemblage, coil mergers swing on a horizontal axis, a plate member ar ranged between the upper end the underside of the assembly, connectedl with the assemblage and said plate member, and means on the plate member engage-4 able with the bracket, to build up reactive tension of said springs during the movement of the assemblage into typing position.

' SAMUEL A. THoMrsoN.

of the bracket andv y tension springs

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