US286824A

US286824A - horton

Info

Publication number: US286824A
Authority: US
Publication date: 1883-10-16
Anticipated expiration: 1900-10-16

Description

3 Sheets-Sheet 2 (No Model.)

E.E.HORTON.

TYPE WRITER. No. 286.824. Patented Oct. 16, 1883..

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E. E. HORTON.

TYPE WRITER.

No.-286,8Z4. Eaten ted Oct. 1 1883..

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NITED STATES PATENT OFFICE.

EDWVARD E. HORTON, OF TORONTO, ONTARIO, CANADA.

TYPE-WRITER.

SPECIFICATION forming part of Letters Patent No. 286,824, dated October 16, 1883.

Application filed September 1, 1881. (No model.)

, to, in the county of York and Dominion of Canada, have invented an Improved Type- VVriting Machine, of which the following is a specification.

The invention relates to certain new and useful improvements in type-writing machines; and it consists in the construction, arrange ment, and combinations of the various parts, as more fully hereinafter described, and then pointed out in the claims.

In the accompanying drawings, which form a part of this specification, Figure 1 represents a front View of the machine. Fig. 2 repre sents a side view of the machine. Fig. 3 represents a side view of one of the type-bars. Fig. 4: represents a rear view of the machine. Fig. 5 is a detail showing how, when more than one type-bar bed in the form of an arc of a circle is used, they may be arranged in relation to each other.

The same letters refer to the same parts in all the figures.

A B C D represent the frame of the machine.

E F represent the bed, to which the typebars are affixed, Figs. 1 and 2. One of the type-bars G is represented in place and in the act of printing inFig. 1, and at rest in Fig. 2. The type-bars may also be arranged on more than one bedas, for instance, in a machine in which it is desired to have both capital and small letters-in which case those on the outer bed or beds will strike through between those on the inner, Fig. 5.

H I is an ink-ribbon, and d c are spools upon which it is wound, and from which it is unwound, respectively, by the act of working the machine.

J K is a fixed fiat platen.

Min Fig. 2 represents a large roller, which is used in combination with a small roller (N O in Fig. l, O in Fig. 2) for holding the paper fast while it is being written upon, and for shifting the paper into position for each successive line of writing.

1? Q is a small-roller, the use of which is to prevent the paper as it is being shifted by the I rollers L M and N 0, from being dragged too harshly against the edge of the platen. In

Fig. 2 the end of P Q is represented by the cirole marked Q.

LR is a ratchet-wheel affixed to the roller 5 5 S is the pawl which works in the ratchet-r wheel R.

T is a lever, by means of which the one is made to work in the other,

U V, Fig. 2, are two arms rigidly connected together, both of which move toward the rear and bottom, respectively, of the machine,when the lever T is pulled, and the pawl Sbeing pivoted to the arm U the'movement of U causes S to be moved also, and,consequently,likewise the ratchet-wheel R and the roller L M, to

' which R is aiiixed, and the roller N O, which is pressed against L M by the action of the springs, which are represented as attachedto 7o the ends of the axle of N O.

W X represent the frame of the paper-carriage.

Y Z, Fig. 1, represent two of four grooved wheels, which bear the paper-carriage. I In Fig. 4 the other two wheels are'seen.

a b represent the rails on which these wheels run.

e f are wheels cogged so that they run in each other with their planes at right angles to each other. The wheel f is supported by the shaft h i, but not affixed to it.

g is a ratchet-wheel, working on the wheel f, Fig. 2. g is affixed to the shaft h i, so that when it i is turning in one direction 9 will cause f to revolve with it by means of apawl,

9', but when It v3 is turning in the contrary direction will leave f standing still. is is a pinionwheel, which is also affixed to the shaft h i, so

as to revolve with it. an is a rack, with teeth 0 working in those of the pinion-wheel k.

n is one of two blocks, in which the rack is at either end rigidly fastened. The ends of the frame A B O D are formed as shown in Fig. 2, in order to admit of the passage through 9 5 it longitudinally of the rack and its supporting-blocks, so that the paper-carriage may pass to either end of the rails on which it runs, which, it will be observed, extend be; yond the sides of the frame of the machine. As the distance between the two blocks supporting the "rack is somewhat greater than a w the distance of the said pivot from the pallets,

will afford the best leverage.

w is a key, having upon it a letter or other characterone of a series of such keys. It is affixed to a lever, 00 yone of a series of such levers-and this lever is connected by means of the rod a one of a series of such rodswith the type-bar Gone of a series ofsuch typebarsto which is affixed a type bearing a character corresponding with that upon the key. I) is a spring, held between two pieces of wood clamped together. Its object is to retain the key-levers in place when, in the operation of the machine, .the support is removed from them, which, when the machine is at rest, they receive from a crossbar, c, which extends from one side of the movable frame to the other, and which is affixed to it. cl is a bar by the depression of which the spaces between words are made. It rests upon the ends of levers similar to those with which the typebars are connected. All the type-bar levers and the spacing-bar levers are pivoted at c.

f and Fig. 4, are spiral springs, which, when the machine is at rest, keep the pallets 0 p in the teeth of the ratchet-wheel n? I11- side of each of them is a rod supporting a cross-bar, h i, the purpose of which will be stated hereinafter. These rods also serve to guide the pallets into the teeth of the ratchetwheel at when they have been removed from it.

The mode of operating the machine is as fol lows: \Vhen a keyfor instance, w-is struck by the finger, the blow causes the lever with which that key is connected to press upon the cross-bar 0, upon which it is lying lightly.

The force thus applied counteracts that of the spiral springs f and g, pulling upward, and consequently the end if of the movable frame 8 it goes down, taking with it the pallets 0 1). At the same instant the depression of the keylever at the point where the rod to is connected with it causes force to be applied to the shorter arm K of the type-bar G, and consequently forces the type at its farthest extremity to come in contact with anything resting upon the platenJ K, Fig. 1. Instantly upon the key being released, the spiral springs f and g draw the end t of the movable frame sharply up, and the pallets are forced firmly against two of the teeth of the ratchet-wheel 01. The pallets are pivoted in the upper end of the standard 1", in such a way that when they are depressed from the teeth of the ratchetwheel, against which they may happen to be resting, they are swung by the force of the spring-(represented in Fig. 4 as pressing against the arm in the direction of the arm 0) a sufiicient distance to cause the arm 19 to go beneath a tooth one place lower down than the tooth it has just left. WVhen, then, the key is released, the pallet-arm 19 catches in the tooth next lower down on the wheel, and the spiral springs cause it to rise until it can rise no farther in consequence of the arm 0',which is shorter than the arm by a tooths length, also coming in contact with a tooth of the wheel one place lower than the tooth it last pressed against. It will be seen that each time the pallets rise in this way they turn the ratchet-wheel one notch. The pinion wheel has an equal number of teeth with the ratchet-wheel n, so that when the latter is turned to the extent of one tooth the former is turned one tooth also, and as the rack m is toothed to correspond with the pinion-wheel, and is affixed to the paper-carriage, the papercarriage is moved to that extent likewise, and

a tooth of the rack is equivalent to a letterspace. The paper to be written upon passes in from the rear of the paper-carriage below the roller L M and the roller P Q, up across the face of the platen J K, (which is in a plane approximately parallel to or the same as that on which the type-bars are fixed,) and between the roller N O and L M, the spiral springs attached to the end of N O expanding just sufficiently to admit it between. them. WVhen the end of a line of writing is reached,the operator pulls the lever T, which causes the ratchet S to make the rollers L M and N O to revolve sufficiently to draw the paper up a linespace. At the same time the farther end of the arm V and of the corresponding arm at the other end of the carriage, with which it is connected by the rod m, are depressed, so that the rod on rests upon a pin, 11, carries the pin downward, and along with it the end i of the movable frame, thus throwing both pallets entirely clear of the teeth of their ratchet-wheel. WVith the lever held in that position, the carriage is then pulled back to the position for beginning the next line, the rack traveling over the pinion-wheel, and causing it, together with the ratchet-wheel n, affixed to the same shaft, to reverse, As the ratchet-wheel g is affixed to the shaft to which the pinio11-wheel is also affixed, and as it unites with the wheel f and causes it to revolve with it in one direction, it follows that f, and with it the wheel 0, moves when the pinion-wheel moves, and rests when it is at rest. treme ends, where it is round in order that it may revolve in its bearings, the shaft of each ink-ribbon spool is square, and consequently it does not permit the spool to revolve upon it, but with it, though the spool may move longitudinally upon it, so as to subject the whole width of the ribbon to wear. Running lengthwise of the short shaft on which the toothed wheel 0 revolves is a square hole, forming 'a sleeve into which the corresponding square Except at the ex- 'must revolve also.

portion of each ribbonspool shaft fits, so that when 6 revolves the spool on the same shaft In this way, every time the key of a lever connected-with a type-bar is released after being struck a little of the ink-ribbon is wound upon one the spools, and a corresponding length of it unwound from the other. When all theribbon is unwound from 0, both spools are removed from their bearings and their positions exchanged. By this means the portion of the ribbon toward one of its edges is used, alternately, with the portion toward the other edge. By having the'ribbon narrow, not more than the last three or four letters written need ever be hidden from view at one time. In manifolding, the ribbon-spools may be removed from the machine entirely, and then the impress of every type may be seen as soon as it strikes the paper. Of course to the ratchet-wheel R and the ratchet-wheel a there is a stop-pawl to prevent any back action, that to a being turned up at the point sufficiently to permit of the wheel being reversed.

What I claim as my invention consists of the following features 1 1. In a type-writing machine, a surface for receiving the blow from the type-bars carried by a movable paper-carriage with its face at an angle to the horizontal plane of the machine and in a plane parallel with that of the are or arcs of a circle or circles to which the type-bars are pivoted, said are or arcs being also at an angle to the horizontal plane of the machine, substantially as set forth.

2. I11 a type-writing machine, the fixed flat platen J K, attached to a movable paper-carriage with its face-at an angle to the horizontal plane of the machine, and in a plane parallel with that of the are or arcs of a circle or circles to which the type-bars are affixed, said are or arcs of circles being also at an angle to the horizontal plane of the machine, in combination with the rollers 'L M P Q, the spring rollers NO, the ratchet-wheel R, the pawl S, the movable arms U V, rod m, the pallets o and 1), gear of, and-connections, as and for the purposes specifiedl 3. In a type-writing machine, the combination of the shaft h v; with the cogged wheels 6 and f, the ratchet-wheel g, the pinionk, the spools c and d, the paper-carriage W X, and

the pawl 9 connecting the ratchet-wheel g with the cog-wheel f, substantially as and for the purpose specified.-

4. 111a type-writing machine, the combination of the rod m, operated by means substantially as described, with the pin a, the crossbar h i, the rods and springs f and g, and the cross-bar q, as and for the purpose specified.

5. In a type-writing machine, and in combination with the frame A B G D, rails or b of said frame, and the paper-carriageW X, provided with wheels Y Z, and rack-bar m, as described, the shaft h i, pinion k on said shaft, ratchet-wheel n, pallets 0, standard r, crossbar q, rods and springs f bar h i, pin a, and the movable bar on, as and for the purpose specified.

n. E. HORTON.

Vitnesses:

ALBERT HORTON, WM. 0. HOWELLS.