US400265A

US400265A - Machine

Info

Publication number: US400265A
Authority: US
Publication date: 1889-03-26
Anticipated expiration: 1906-03-26

Description

(No Model.)

C'. SPIRO.

TYPE WRITING MACHINE. l

Patented Mar. 26, 1889 I l E @f y Lz m W :z:

Femm phonfmhognpw. wnhingvm n c.

UNITED STATES PATENT EEICE.

CHARLES SPIRO, F NEV YORK, N. Y.

TYPE-WRITING MACHINE.

SPEGIFIGATION forming part of Letters Patent No. 400,265, dated March 26, 18.89; Application filed June 4, 1887. Serial No. 240,304. l(No model.)

To all ww'm t may concern:

Beit known that I, CHARLES Srrno, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Type-Vriters, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention has relation to type-writers, and more particularly to that class which employ type-bars, each carrying a single printing-character and each connected with a keylever; andthe objects of the present invention are to provide a lock for each bar to operate as it` approaches and reaches the printing-point, so as to prevent inaccuracy, in the work performed, which would be occasioned by a displacement of the bar laterally, by reason of either resiliency in t-he bar itself or looseness of the same at its bearings, to provide an improved manner and means for securing the type upon the bars, and for rotating the inking-disk.

Other objects and advantages of the inven` tion will appear in the following description, and the novel features thereof will be particularly pointed out in the claims.

This invention is an improvement upon that set forth in my pending application, Serial No. 234,905; and certain features of construction are herein shown, but not claimed, as they form the subject-matter of said application.

Referring to the drawings, Figure l is a substantially central vertical section of a typebar-carrying plate, the platen, and the inking mechanism, the key-lever eonnectingrods being shown in dotted lines. Fig. 2 is a plan of the principal elements shown inV Fig. l. Fig. 3 is a plan of portions of three adjacent type-bars. Fig. 4 is a detail in side elevation of the inkingmechanism, the disk being shown in section. Fig. 5 is a side elevation of a portion of the type-bar and details of the type-securing devices. Fig. 6 is a section, and Fig. 7 a plan, of a modified locking-plate. Fig. 8 shows the locking-grooves, so proportioned as to embrace a different form of typebar from that shown in Fig. l.

Similar letters of reference indicate like parts in all the figures of the drawings.

Arepresents the type-'bar-supporting plate, which is provided with a series of concentric grooves, A', in which the type-bar-supporting brackets B are secured.

` C represents a shield, which is secured to the front edge of the plate A.

D is the platen mounted on a carriage, D', which rides in a track, D2, secured to thebase or table of the machine. mounted on the base and supports the plate A., A bracket, E, projects upwardly from the base and supports a shaft, E onwhich a stud,

E2, is mounted, and upon the stud, by means of a thumb-screw, E3, the inking-disk F is mounted so as to rotate thereon. A standard, G, projects from the bracket E and carries a lgravity-pawl, G', which at its free end remains in contact with the .inking-disk.

As described in the application above referred to, the type in the act of moving to the platen comes in contact with the flange F of the inking-disk and causes it to swing backward and down, as illustrated in dotted lines,

A bracket; A2, is

Fig. 4, out of the path of the type, whereby the type is inked. In this movement of the disk the gravity-pawl G is swung outwardly, as shown by dotted lines, Fig. 4, and therefore its free end is caused to travel a short distance in a circular path on the disk. As the type leaves the platen, the disk assumes its normal position, (shown in full lines,) and the pawl following the disk by gravity causes it to rotate a short distance,`thus presenting a new surface for inking the next type. This disk-rotating mechanism is exceedingly simple, and has been demonstrated to be completely successful in its operation.

H represents the type-baigwhich is mounted in the bracket B by lateral pivots l-l, and is connected at H2 with a type-lever rod, H3.

(Shown in dotted lines.) Each of the type-l rooy K, the bracket being :fixed to the base of the machine. The locking-plate K is provided with two concentric ribs, K K2. These ribs are concentric with the printing-point, as are the grooves A of the plate A. Each of the ribs is provided with a series of slots, K3, which are of a width to easily receive asingle type-bar. The slots of one rib are placed, preferably, intermediate those of an adjacent rib. I may use one or more locking-ribs.

It will be seen that the locking-plate and its ribs are arranged very near the printingpoint, and this is essential to a perfection in the operation, as were the locking-plate arranged farther from the printing-point and nearer to the pivot of the type-bar lateral springing or detlection of the type-bar and any looseness at the pivots thereof would effeet a material displacement of the type with reference to the exact printing-point on the platen, because a slight deviation at thepivot, or at the locking-plate near the pivot, would cause an increased and very material deviation at the printing-point. By locating my locking-plate near the printing-point I obtain a very perfect control and alignment of the type-bar.

I adapt my locking device and the typebars operating in connection therewith to each other in such. a manner that each slot of each rib of the locking-plate is capable of locking and aligning a plurality of type-bars. In this instance I illustrate a construction by which each slot aligns and locks three bars.

In Fig. 3, at the left, the type-baris straight. At the right the type-bar is bent, as at II, while the central bar, II, is bent to a less degree, as at II, so that all three of these adjacently-arranged type-bars are adapted to be brought into a single slot of alocking-rib, and yetI the type of each bar will be brought exactly to the printing-point. By this construction and arrangement of these coaeting parts it will be seen that I not only reduce the number of lockilig-slots necessary, but am enabled to arrange the same nearer to the printingpoint, and yet permit of a sufficient clearance of each of the type-bars of a series co-operating with the locking-slot, in order that they inaypass each. otherwithout collision as they are successively brought to and returned from the printing-point, and also as they rest in a position of non-use.

New it is apparent that so far as the locking feature of this invention is concerned the locking-plate or its separate lockingribs may be suiciently elevated to co-operate with type-bars which are not provided with the depending lugs II, as shown in Fig. 8; but I prefer to form the bar as herein Shown.

. L represents the type-recei ving block,which is slotted, as at L', for the reception of the type-bar. It is centrally bored7 as at- L2, for the reception of a roughened shank, I', of the type or type-plug I, the type N being either formed on or secured to the face M of the plug I. The fit of" the shank I is comparatively loose or easy within the plug L, and the type-bar being straight, there will be at each side thereof an aperture or a portion of the bore L2, into which melted solder may be poured, so that it shall iioW down the sides of the bar and around the shank of the typeplug. This pouring of the solder takes place after the type-plug has been inserted into the block and the block adjusted longitudinally on the bar, so as to bring the type to the printing-point, and after the type-plug has been turned within the block for the proper adjustment of the type to cause it to print in a correct vertical line. After the type-plug and block are adjusted and xed by solder such portions of the plug, and, if desired, similar portions of the block which are outside of the area of the printing-character proper, may be removed,whereby greater clearance of the type-bars, one from the other, is provided. The dotted lines X in one of the details of Fig. indicate the portions removed for this purpose. In this manner the parts specified are properly adjusted and permanently secured in a cheap, rapid, and eilicacious manner.

By beveling the portions ot' the locking'- ribs between the slots thereof it will be seen that any slight variation of a type-bar from a true alignment is overcome, and the same is brought into proper alignment by being' guided into the slot by said bevels of the ribs. In this manner quite material imperfections in the pivoting of the bar are overcome and good work accomplished.

In Figs. 6 and 7 I have illustrated a more easily constructed locking-plate, in that the slotted ribs K K2 are replaced by rows 0i' pegs K K2. These pegs are slightly tapered and are driven in holes formed in the plate K, and they are arranged so as to form slots or spaces between each two pegs, into which spaces the type-bars II or lugs IIA1 thereon pass, so as to lock the bars against lateral displacement from the printing-j ioint.

Having described my invention and its operation, what I claim isl. In combination with the type-bars of a type-writin g machine, a locking-rib having slots, the slots and typebars being relatively constructed so that two or more bars are locked by one and the same slot in the rib, substantially as specified.

2. In a type-writing machine, a series of type-bars pivoted in brackets mounted in a series of grooves concentric with the printing point, in combination with a lockingplate having a rib concentric with the print ing-point, and provided with slots for the reception of the type bars, substantially as specified.

3. The combination of a type-bar, a block slotted to embrace the same and longitudinally boredfor the reception of a type-bearing plug', the bore of the block extending from end to end thereof and forming pas- IOO IIO

sages at each side of the bai, substantially as v In testimony WhereofI aiix my signature in specified. presence of two Witnesses.

4. type-plug having a Toughened shank, in combination with a block boifed longitud- QHARLES SPIRO nally to receive the same loosely, and slot-ted Witnesses: to a Width less than that of the bore, and with J. FBEUDENTHAL, a type-bar, substantially as specified. C* W. STUBBINGS.