US451951A - Feinting telegraph - Google Patents

Description

(No Model.; 3 shets-sheen 1.

E. POPE.

PRINTING TBLBGRAPH. No. 451,951. Patented Mayr 12, 189].

WITNESSES: INYBNTg( u I BY f 1 (No Model.) sheets-sheet z.

E. POPE. y PRINTING TELEGRAPH.

No. 451,951. Patented May 12,1891.

(No Model.) 3 Sheets-Sheet 3.

' E. E. l PRINTING GRAPH.

Patented Maby 12, 1891.

HIIIIII v WIT/VESSES':

EDWIN POPE, OF QUEBEC, CANADA.

PRINTING-TELEG RAPH.

SPECIFICATION forming part of Letters Patent No. 451,951, dated May 12, 1891.

Application tiled Iebruary 18, 1888. Serial No. 264,499. (No model.)

To all whom it may concern:

Be it known that I, EDWIN Porn, a subject of the Queen of Great Britain, residing in Quebec, in the Province of Quebec, Canada, have invented certain new and useful Improvements in Printing-Telegraphs; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Hy invention relates to improvements upon printing-telegraph apparatus, in which every letter or character within the capacity of the mechanism is printed by simple and direct movements of armature-levers. The printing-magnets are each capable of operating either of two different type-levers or of operating to different distances a single type-lever carrying two different types.

For controlling the circuits of all the typemagnets I employ a series of relays at my receiving-station and actuate the said relays in every instance by three changes in the condition of the line-that is to say, in order to print any given letter or character at the receiving-station I cause at the transmittingstation successively three changes of the circuit, and I print different letters at vrill by varying the character of the changes or the order in which the changes occur. For eX- ample, I may send over the line a strong nega tive current, a weak negative current, a strong positive current, a weak positive current, or

I may cause the line to be aiected by no current at all. Now each one of these conditions of the circuit affects differently the relays at my receiving-station, and by joining them in groups of three in different orders and combinations I can operate any selected one out of my group of type-magnets and print any character I choose Within the capacity of the apparatus.

I have illustrated my invention in thc accompanying drawings, in whichn Figure 1 is a diagram of a portion of the circuits at my receiving-station, some of the parts being shown in detail, the dotted radial lines representing the planes which the typelevers occupy. Fig. 2 is adiagram of the circuits and connections for one of the typemagnets, and Fig. 3 is a perspective view of a portion ot' the apparatus with some parts in dotted lilies.

Referring to Fig. 1,1) and D are relays in the main-line circuit, which are affected by varying conditions of the line. The relay D is provided with two polarized armatures d2 and cl3, the former of which responds only to positive currents and the latter only to negative currents. The relay D has a neutral armature d', which responds only to heavy currents of either polarity. Connected with the armatures ds and d is a local battery G, and connected with the stops of all the armatures are various circuits running to a series of relays and printingunagnets in a manner to be hereinafter described. The magnets that are arranged in a circle in Fig. 1 are thirty type or printing magnets. They are divided into iive sections of six each, the magnets being numbered 1 2 3 4 5, and those in the same section having the `same number. For example, one section is made up of all the magnets in the group which are numbered 1, another section is made up of those numbered 2, and so on. It will be oloserved that the magnets in a section are. not placed together, but disposed in a circle, for reasons which will be apparent further on. The magnets of each section are arranged in series in the samel circuit, and they are also in circuit with one or the other ofthe mag nets E E2 E3 E4 E5. The magnets of the fifth section, for example, are, in circuit with magnet E5, those of the fourth section with E4, and so on. Now it is evident that thevarious sectionmagnets and the E magnets are operated differently according to the various positions of the-relayarmatnres- For example, it being understood that the armatures are normally on their back stops, a strong negative current on line operates armatures cl3 and cl and closesY the circuit of battery G through magnet E and the printing-magnets of the firstsection, this circuit being traced as follows: from battery G to armature d3, to front stop, through three of the magnets 1, (section No. 1,) thence through magnet E', through the other two of the l magnets to the lower front stop of armature d', through said armature d', and back to battery. A weak IOO negative current operates armature cl3 and closes the local circuit through E2 and the magnets of the second section, numbered 2. No current leaves all the armatures on their back stops and keeps the local circuitclosed through E3, and the magnets of section numbered 3, Fig. 3. Aweak positive current operates' the armature cl2 and closes the local circuit through E4 and the magnets numbered 4. A strong positive current operates the armatures d2 and CZ', and closes the circuit of battery G through the magnets numbered 5, and through magnet E5. It is clear that at every change of the relay-armatures by the change of current on line six type-magnets respond.

Referring to the central part of Fig. lit will be seen that the armature-lever of the magnet E5 carries two segments y y. The construction of this part of the apparatus may be varied; but I have shown the end of the armature-lever attached to a segment X', which only acts as a vehicle to carry the segments y fy, secured to posts on the ends of X. Similar segments y2 ys, dac., are attached to the armature-levers of all the E magnets, and they are arranged concentrically in such a manner that the armature of every typemagnet rests over two of the y segments. As will appear hereinafter, these segments stand in- 'the way of a forward movement of the type-levers, which is necessary before a character is printed, and it is necessary that both the segments detaining any given type-arm should be removed out of its path before it can thus be thrust forward. The segments y y', operated by the magnet E5, stand, it will be observed on referring to Fig. 1, in the path of one at least of the printing-magnets belonging to every other section besides its own. The same is true of the segments operated by the other E magnets.

Fig. 2 shows one form of printingnnagnet and the connections of the feed-magnet and of a magnet M, which holds the segments y y y2, che., down temporarily until the type-arm is thrust forward. In this figure magnet is represented with an armature e and a lever carrying a segm ent y, which is located in front of a stop 10 on a type-arm G There is another stop 11 on the same type-arm, which is located behind the second segment y?, which latter, however, is not supported by the armature-lever of the magnet E5, but by one of the other armature-leversw-say E3. 7 and 8 represent two types on the type-arm G. The arm is supported upon a stop 9. D3 is one of the printing-magnets, and its armature is operatively connected with the type-arm 6 by means of the bellcrank P, pivoted at L. Type-arm 6 is pivoted in the upper end of the bell-crank T and carries on an angular extension a weight 8%, the function of which will be described'hereinafter. Vhen the armature of D3 is attracted, it acts upon the bellcrank to thrust forward the type-lever 6. This cannot take place, however, until both the segments y yl have been removed out of the path of the stops 10 and 11. It will be remembered that six typemagnets are energized every time a change takes place in the condition of the mainline. They are,however,ineffective unless the segments referred to have been removed. It will be remembered, also, that one of the E magnets is operated at t-he same time with the section-magnets. In this way one segment is removed at every change on the line or operation of the magnets. When the magnet is operated, it attractsits armature and also operates an armature 12 on the extreme end of its armature-lever, so as to bring it into contact with the pole-pieces of magnet M. (Shown in Figs. 2 and 3.) This magnet, while not strong enough to attract the armature 12,is strong enough to hold it when it has once been brought into contact. The action described removes the segment y from the path of the type-arm G. Suppose, now, that the next change on the line operates the E magnet which controls the other segment yl. (Shown in Figs. 2 and 3.) This will remove all obstruction from the path of the type-arm and leave it ready to be operated by a third change in the condition of the main line, provided that change is such as will operate D3. Vhen that change takes place, the energization of the magnet D3 will thrust forward the type-arm, as already described, and bring one or the other of the types 7 and Sinto line with the paper or printing wheel or pad 1S. Il now bell-crank P is suddenly brought to a stop, the momentum' of the weight 8- will lift the outer end of the type-arm and press one type or the other against the printing-pad.

The stopping of the bell-crank P is eected by means of asegment S, to which is attached an angular lever 13, which is pivoted at 19, and rests at its outer end upon a disk 14 on a lever 15. The disk is carried downward until it is brought into contact with the yoke 17 or the post 16. If the yoke 17 is located in its path, the disk will be stopped, as will the lever 13, the segment S causing the sudden stopping of the bell-crank P. In this instance the type 8 is brought into alignment for printing, and is operated by the weight, as already described. /Vhen, however, the disk 14 descends into contact with the post IG--that is, when 17 is removed from its path by any means-the type 7 is carried far enough to be in alignment, as will be clearly understood. Now the yoke 17 is moved into or out of the path of the disk 14.- by one or the other of two shifting-magnets, as shown at K, which occupy two of the printing-magnets and have exactly the same connections, except as to the parts shown at the bottom of Fig. 2, partly in dotted lines. These magnets have connected with their armatures levers or arms P, which are extended down, as shown in Fig. 3, into positions behind pins 2O 20 on the lever 2l. 4The operation of these magnets, instead of effecting the printing of a letter, merely shifts the lever 21 back and forth and determines lOO IIC

whether the yoke 17 or the post 16 shall be in the path of the descending disk 14 when one of the other magnets is operated-that is to say, these shifting magnets determine which of two characters on any one of the type-arms shall be printed.

Referring to the electrical connections of the magnet M and the feed-magnet in Fig. 2, it will be seen that the circuit of the former is normally closed and that of the latter normally open. The lever 15 in descending breaks the circuit of the magnet M at the lever 22 and closes the circuit of the feed-magnet at 23. The breaking of the first-named Vcircuit releases the segments y y @/2, rizo., and allows them to rise into position, and the closing of the feed-magnet circuit prepares the way for the feeding of the paper, which is accomplished on the return stroke of that magnet. Levers 22 and 23 are friction-tight on their bearings and are insulated from each other. When the armature of Dgis released, it carries back the bell-crank, including the type-arm, while the other parts are restored to normal position by spring 2a acting on the lever 15.

X is an inking-pad with which the types 7 and S make sliding contact on the return of the type-arm, the lower end of the stops 10 and 1l being beveled or inclined so as to slide up on the segments y y y2, rbc., and make the desired contact.

There are preferably as many levers 13 arranged in a circle as there are E magnets, and each lever carries a segment S, so that each of the type-arms when thrown to the center will operate one of the levers. All the levers 13 rest on the disk 14.

It is not necessary that the number of levers 13 should be eXacty five, but only thatl some segment should stand in front of every type-arm, so as to be operated when the latter is thrown forward.

Now the complete operation of printing a letter is as follows: Let us assume that the two types on each lever 6 are the same letter, the one 'on' the extreme end being a small letter and the inner one a capital. To print the letter a we must first send a current which will insure that the yoke 17 is in the path of disk 14. As shown, magnet K is the one which will do this, and we therefore send over line such a combination of currents as will remove segments g4 and g3, and then operate K, which are, first, a weak negative current which operates armature cl3 of the relays and closes the local circuit through E2, as follows: from battery G, armature cl3, front stop, branching at q to magnet 2x, magnet 24j, magnet 2, magnet 2-0, magnet 2d, magnet E2, magnet 2-fn., lower back stop of armature d', and armature d to battery; E2 then removes segment 'tz/4 and is held down by magnet M; second, a strong negative current which operates armatures cl3 and d and closes the circuit through E as follows: from battery G to armature d3, front stop, branching at q to magnet 1-3,

magnet l-w, magnet K magnet 1-Z, magnet E magnet l-h, magnet 1-7, lower front stop of armature rl', and armature CZ to battery; E then removes segment ys and is held down by magnet M, and thus frees the levers connected with magnet K, and, third, a strong positive current which operates armatures CZ and cl2 and closes a circuit through K, as follows: from battery to armature d3, back stop, armature cl2, front stop, magnet 5u, magnet -r, magnet E5, magnet -b, magnet K, magnet -m, magnet -q, upper front stop of armature CZ, and armature d to battery. Magnet K now being energized and its armature free to move, it acts to throw arm 25 against pin 20 and force yoke 17 into position above post 16. Thenextoperationistosendthecurrents which print the letter a The armature of magnet printing a is locked by segments y2 and yg, connected, respectively, with magnets E and E4. Thisis shown on Fig. 1 by the radialdotted lines. Ve therefore send Iii-sta current which will energize E4 or E', the order of the rst two currents making no difference. Next a current which will energize the printing-magnet a is sent and the printing is done. As soon as type-lever 6 has moved a short dis` tance, lever 13 moves the disk 14 and lever 15 and breaks circuit of magnet M, which releases armatures 12, connected with magnets E2 and E and allows their levers to rise, carrying their y segments back into normal position. Near the end of the printing-stroke the circuit of the feed-magnet is completed by levers 15 and 23. This magnet thenpulls up its armature and when its circuit is broken by spring 24 the spring 26 moves the pawl 27 one notch and shifts the paper roll one space. As before described, the types are linked on receding after printing. n

It will of course be understood that there is no weight ST5 nor type connected with the magnets K and K', but these magnets operate like the printing-magnets to move the paper roll,and thereby act as spacing devices.

Upon an examination of Fig. 1, where all the type-levers are indicated by the radial dotted lines, it will be seen that when the segments operated by any two of the E magnets have been removed there is only one typelever entirely freed, and therefore that oneis the only one which can print.

Having now described my invention, what I claim is IOO IIO

1. In a printing-telegraph, a series of printseries with the said printing-magnets, all in combination with relays adapted to respond to different conditions of a mainline, and circuits and contacts controlled by the relays, whereby a succession of electrically-different conditions on the main line will serve, when properly combined, to release one of the type-arms, as and for the purpose set forth.

2. In a printing-telegraph, two or more series of printing-magnets arranged about a center, two or more series of type-arms operated by the said magnets, a series of detents, two arranged in the way of each type-arm, so as normally to prevent its operation, and a series of controlling-magnets governing the position of the said detents, one of the said controlling-magnets being in series with each series of printing-magnets, all in combination with relays adapted to respond to different conditions of a main line, and circuits and contacts controlled by the relays, whereby a succession of electrically-different conditions on the main line will serve when properly combined to release and allow the operation of one of the type-arms, as and for the purpose set forth.

3. In a printing-telegraph, a printing-magnet and a type-arm operated thereby, the said arm having a pair of stops or lugs each located behind a separate detent, in combination with separate magnets controlling the respective detents, and separate circuits including, respectively, the printing and con trolling magnets, whereby the printing-magnet is prevented from operating effectively while the detents are in place, but allowed to do its work after the controllingmagnets have removed the detents, as set forth.

4. In a printing-telegraph, a printing-magnet and its armature-lever, in combination with a secondary lever, as P, and a bell-crank type-arm loosely pivoted thereto, one arm of which carries the type and the other arm a vertically-suspended weight, and a stop for said secondary lever, whereby when the magnet is energized and free to operate the secondary lever will be checked and the typearm thrown' by the weight to print a character, as set forth.

5. In a printing-telegraph, a printing-magnet and its armature-lever, and a type-arm connected therewith, and said type-arm carrying two characters, one more advanced than the other, all in combination with aprintingroll and an adjustable stop for regulating the distance to which the type-arm shall be thrown, and a switch-magnet controlling the effective position of the said stop, as and for the purpose set forth.

6. In a printing-telegraph, a printing-magnet and its armature-lever, and a bell-crank lever operated thereby, in combination with a bell-crank type-arm weighted at one end, and a stop for limiting the'motion of the bellcrank type-arm, as and for the purpose set forth.

7. In a printing-telegraph, a bell-crank typearm loosely pivoted to a movable piece, one arm of said lever carrying the type and the other arm a vertically-suspended weight op- Y erated by or connected with the armature of a printing-magnet, the said armature and printing-magnet forming a part of the combination, as and for the purpose set forth.

S. In a printing-telegraph, the combination, with a type-arm and stops thereon, of a pair of detents in the path of the said stops, magnets for removing the said detents, and a common magnet for holding the said detents after they have been removed, as and for the purpose set forth.

9. In a printing-telegraph, the combination, with a series of type-arms and stops thereon, of detents in the path of the said stops, magnets for removing the said detents, and a common magnet together with a stop in the path of the armature for retaining the detents after removal.

lO. In a printing-telegraph, a type-arm, a detent in the path thereof, a magnet for removing the detent, and a separate magnet for retaining the same after removal, in combination with means operated by the forward movement of the type-arm for breaking the circuit of the retaining-magnet, as and for the purpose set forth.

ll. In a printing-telegraph, a type-arm, a detent in the path thereof, a magnet for removing the detent, a separate magnet for retaining the detent after removal, a printing pad or roll, and a feed-magnet therefor, allin combination with intermediate devices operated by the forward movement of the typearm, whereby the circuit of the retainingmagnet is broken and that of the feedingmagnet closed, as and for the purpose set forth.

In witness whereof I have hereunto affixed my seal and signed my name in the presence of two subscribing witnesses.

EDWIN POPE. [n s] Witnesses: n

ADOLPHE CAsAULT, DAvrD GAUGE.

IOC

Images