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Publication numberUS470874 A
Publication typeGrant
Publication dateMar 15, 1892
Filing dateApr 20, 1883
Publication numberUS 470874 A, US 470874A, US-A-470874, US470874 A, US470874A
InventorsPhebe Jane Glidden
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Executeix of the
US 470874 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

(NO Model.) 5 Sheets-Sheet 1.

0. GLIDDEN, Deod.


No. 470,874. Patented Mar. 15, 1892.

(N0 Modei.) 5 Sheets-Sheet 2.- G. GLIDDEN, DBGd.


N0. 4'70,74. tented Mar. 15, 1892.

(No Model.) 5 Sheets-Sheet 3.

0. GLIDDEN, Deod.


No. 470,874. Patented Mar. 15,1892.

QzrZas en d mfflesses: jizzigniyg fi .FXQcUif/X. FE WM @M 6% Q4 vf 5 Sheets-Sheet 4.

(No Model.)



Patented Mar. '15, 1892.

m'fflesse s: 5 A M (No Model.)

5 Sheets-8heet 5.


Patented Mar. 15, 1892.

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SPECIFICATION forming part of Letters Patent No. 470,874, dated March 15, 1892.

Application filed April 20, 1883. Serial No. 92,316. (No model.)

T at whom it may concern.-

Be it known that CARLOS GLIDDEN, deceased, late of Milwaukee, in the county of Milwaukee and State of lVisconsin, did invent certain new and useful Improvements in Type-\Vriting Machines; and I, PHEBE JANE GLIDDEN, his executrix, of the city, county, and State aforesaid, do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification.

The invention of CARLOS GLIDDEN relates to type-writing machines and will be fully described hereinafter.

In the drawings, Figure l is a perspective View of the said type-writing machine. Fig. 2 is a vertical longitudinal section through the center of the same. Fig. 3 is a rear view thereof. Figs. 4 and 5 are details of the spacing mechanism. Fig. 6 is a detailin perspective of the mechanism for connecting the keys with the key-levers. Fig. 7 is a detail in plan of the same; Fig. 8, a like detail in section;

and Figs. 9 and 10,respectively,aperspective and a sectional view of modifications of the same. Figs. 11 to 16, inclusive, are various modifications of keys. Fig. 17 is an end view of one of the inking-ribbon reels, and Fig. 18

0 a like view of the other. i

A is the box of the machine. A is thetop plate of the same, and A is the metallic basket in which the type-bars play. On the rim a of this basket are secured small brack- 3 5 cts a, which are slotted longitudinally forthe reception of the type-bars B and their operating-wires B, and these brackets are bent up at their free ends, as shown, so that they may guide the type-bars in their rise and fall.

0 On each four (more or less) of the brackets a is placed a flanged plate Z), that is perforated or slotted at its rearend to receive set-screws that bind it, as well as its subjacent brackets a, to the rim a. The bottom of each of the plates 1) is slotted in front to admit type-bars B and their mgerating-wires up through it and the flanges of each form the bearings for the pivots of the type-bars.

B are the key-levers, each of which pro jects back over a spring 0 and under a stop 0 and is held in place between slats c c bya vertical spindle c, and then midway of its length is suspended by a staple (Z and wire B, that connects it with one of the type-levers. The key-levers are arranged side by side, and beneath them and forward of their centers is suspended a slat D, by both of its ends, from rods D and arms D that project from a rock-shaft E.

The rock-shaft E has a circular bearing in one side of the box A, and its opposite extremity is provided with a bottom notch to receive the upper edge of a knife-bearingf, the opposite edge of which rests in a transverse notch f in the upper surface of the lower arm of a horseshoe-spring F, which by such lower arm is secured to the side of the box A at a point somewhat below the plane of the lower extremity of the basket, (see Figs. 2 and 3,) while a corresponding notch in the upper surface of the shaft receives the reduced lower extremity of a set-screw f, the body of which extends vertically downward through a suitable opening in the upper arm of such horseshoe-spring, the shaft being thereby clamped when the machine is at rest with rigidity sufficient to maintain its arms in a position in or somewhat abovea horizontal plane therewith.

F is an elbow-lever, one end of which is keyed to the rock-shaft E about midway of its length, while its other end lies parallel with the shaft E and points in the direction of the horseshoe-spring F.

G is a frame that is journaled on one of its sides in hangers G, and has a finger-shaft g journaled in its opposite side, the finger g of which is designed to project up through the slot a in the top plate A, and to give the finger g a tendency to hug the left edge of slot a. The shaft g is surrounded by a torsionspring one end of which is anchored in the frame G.

H is a spacing-box, which is open at top and bottom and is grooved in its sides for part of its depth to receive spacing-plates h, and below the grooves the sides of the box extend down far enough to straddle a lug h in the top plate A The arm of elbow-lever F, that is parallel 10: with shaft E, is connected on its upper side with the portion of the frame G thatisimmediately above it by means of a link i, which holds it against the tendency of the rock-shaft to raise the elbow-lever, and as the finger g is carried by the frame as the latter is lifted by the elbow-lever it will thrust the finger up through the slot a in position to engage with the spacing-plates h, as will be better described farther on. The range of motion of the frame is regulated by a set-screw 7c and post 76, as shown in Fig. 5, and the pin 1' is held in place by the upward pressure of the elbow-lever.

Just above the frame G and on the top plate A is secured lug 72, one end of which projects over the slot a and is slotted to-admit the finger g up through it, and this slotted end of lug his designed to abut against each spacing-plate h in turn and arrest the spacing-box and carriage after each letter has been made. For instance, in Fig. 5 the slotted end of lug h is shown as abutting against one of the spacing-plates h and the upper end of finger g is just beneath the same plate, this being the position of the parts while there is a pressure on one of the keys to make a letter, for as a key is struck it will depress a key-lever 13 which, by depressing slat D, will draw upon rods D and arms D to rock the shaft E, which will depress elbow-1ever F and permit frame G and finger g to drop. Now when pressure is removed from the key the shaft E, being released, will return the elbow-lever F to the position shown in Fig. 2, when it will lift the finger g, which in turn will lift the spacingplate that is immediately above it out of contact with the slotted end of lug It, so that the plate will pass over the lug, which will then abut against the nextone, which plate the edge of the upper end of the finger will also abut against, to yield. however, as the spacing-box and carriage advances, as shown in dotted lines, Fig.5, where it (the finger) will remain until another keyis struck, when it will again fall back to the position shown in full lines, and so on in like manner until the carriage has completed its travel, and then when the carriage is to be returned for another line the incline on top of lug h will permit the spacing-plates to ride freely back over it. I

A rod 1, which is suitably secured to the top plate A, passes through sleeved lugs jj on the rear of the carriage, as well as through like lugs j on the spacing-box H, and as it fits loosely in these sleeved lugs the rod 1 forms a hinge as well as a guide for the spacing-box and carriage; but to avoid binding the rear of the frame of the carriage is provided with sheaves 1 that travel upon the rod I and support the weight of the rear portion of the carriage, the front of the same being supported by another sheave or roller 1 The frame of the carriagel carries a cylinder-platen L, the axes of which are adapted to revolve freely in their bearings and in the same frame, and just beneath the rear portion of the platen L is journaled a roller L, which is designed. to hold the paper'in contact with the platen at that point and to cause the paper to hug the under side of the platen, and rubber bands Z are extended from about the grooves in the roller L to sheaves Z on a rod L just under the front portion of the platen L.

M are rounded arms that project one from each end of the carriage-frame on its rear, and on one of these is slipped the sleeved bearing on of a bracket M, and on the other a like bearingm of another bracket'M The bracket M is slightly curved, its highest point being that just in front of its bearing m, and its lowest point just about its middle, and at a distance from its bearing-sleeve that is equal to about a third of its length an armN is projected out from it, and from this arm the axle N of an ink-ribbon reel N extends at an acute angle to bracket M. The bracket M like bracket M, extends with a slight downward curve out from its bearing-sleeve, and from very near its rear end an arm N is projected outwardly and carries an axle N for reel M which lies at an obtuse angle to bracket M so that while the reels face each other their inking-ribbon will be carried diagonally across the typewell, and therefore I the first letter on a line will take its ink from the front edge of the ribbon and the last let-, I ter from the rear .edge of the same, and thu the entire surface of the ribbon may be utili ized. v

The ink-ribbon M* extends at the right unj der the brackets M" and m and over the reel N while at the left it extends under the reel M and is held taut thereon by means of the weighted triangular blocks n, which are piv-' oted by their reduced or unweighted ends to the outer face of such reel. As will be seen, Fig. 17, the weight of the ribbon tends to unwind it from the reel in the direction indi- 11o 'cated by the arrow; but this tendency is resisted and overcome or counterbalanced by the blocks n, one or more of which will in any adjustment of the reel rest by its edge upon one of the pins n, which are arranged in a II 5 circle at suitable intervals a short distance within the periphery of the reel and which project outwardly from the end of the reel, and will thus be held in such position that the weighted end of the same will project beyond the periphery of the reel and in the .direction of the body of the ribbon as it is extended across the well. After each line has been printed it is desirable, in order to produce clear letters in the succeeding line, that the ribbon be advanced slightly, and in order that this may be done automatically a 7 plate 013, which is increased in thickness from its inner to its outer extremity, thus producing an inclined plane, is secured to the up- 1 0 per surface of the top plate A, its outer end projecting beneath the reel N Upon the axle N, between the reel N and the arm N,

is sleeved one end of an elbow-lever 1, Figs.

1 and 18, the curved lower end 2 of which rests upon the upper surface of the inclined plate 71 To the elbow of the lever 1 is pivoted a pawl 3, the play of which in one direction is limited by a guard or any suitable stop l and in the opposite direct-ion by a springarm 5, the lower extremity of which is secured to the bracket M and the upper extremity of which extends upwardly between a ratchet c upon the periphery of a circular plate 6 upon one face of the reel N and the opposite face of the pawl 23. In the operation of this portion of the machine, as the reel M is turned in unwinding the ribbon the blocks it upon the inner or ribbon side will bear by their edges upon the projecting pins a, and their broader and heavier extremity will thus be extended outwardly beyond the periphery of the reel, while upon the outer or free side of the reel the blocks, being unsupported save by their pivot-pins, will fall to a vertical position and wholly within the vertical plane of the periphery of the reel. When the movement of unwinding of the ribbon ceases, the blocks a will be in such position that those which are supported by the pins 72, as well as by their pivot-pins, will overbalance the weight of those which are supported by their pivot-pins only to a degree sufficient to cause the reel to turn slightly toward the body of the ribbon and thus hold it with the requisite firmness against the platen. As the drawing of the ribbon continues from time to time the weighted blocks will be successively elevated upon the inner or ribbon side of the reel and dropped to a vertical position within its periphery upon the opposite side thereof, and will thus continually act to maintain the tension of the ribbon during the operation of the machine. lVhen the carriage is turned down upon the top plate A of the machine, the

spring-arm 5 will also drop and permit the pawl 3 to again engage with the ratchet *r of the plate 6; but this engagement will gradually cease as the carriage advances across the table, since the thickness of the plate 11 is diminished from its outer extremity toward the type-well, and this diminution permits the elbow-lever to be gradually depressed and thus carry the pawl out of engagement with its ratchet. Thus when the carriage is drawn back for an additional line the plate a will elevate the elbow-lever and cause the pawl to turn the ratchet and reel far enough to bring.

a new surface of ribbon within the operation of the types for the next line.

The front ends of the brackets h M are supported by rollers m to-insure their easy travel on plate m The carriage I is drawn over the top plate A by an upright K, the upper end of which is provided with a sheave 1*, about which a cord K is passed, one end of which is secured to the frame of the carriage and the other to the box A. The upright K is preferably elastie, and its lower end is clamped by a loose knife-edge Z and set-screw I between the ends of a horseshoe-spring Y the set-screw entering the upright just above the knife-edge, so that when the carriage is drawn back in position to begin a new line the ends of spring K will be pried apart and their effort to return will give the desired force for propelling the carriage. The spring operates upon the arm as upon a lever in which the loose knifeedge is the fulcrum and the set-screw the power which constantly causes the arm to assume a normal position with suiiicient force to carry the carriage.

To enablean operatortoprintwithoutremoving his fingers from the keys, the key-levers B are arranged in groups of four, and a spindle O is projected up from each of these levers to receive a sleeve 0, above which the foot of a plunger P is loosely collared on each spindle, and each four of these plungers is inclosed in a cylinder P, which is partitioned off, so that each plunger slides in a barrel by itself. Above the partitions each of the cylinders is formed with a squared rim, each corner of which incloses partly the upper edge of a barrel and forms a guide for a keystem R, that is gimbaled in the bifurcated end of a bracket S in such a manner that by manipulating the key its stem maybe guided into the barrel of any one of the plungers of the cylinder immediately below it, and thus either one of the type-levers in a group may be struck, according as the key-stem is tilted forward, backward, or to the right or left as it is struck.

The key-brackets are projected from rods S, that are lifted by torsion-springs S as in Fig. 6, or from staples S, as in Figs. 9 and 10, in which latter case they will. be supported by bent springs S and their range may be limited by fingers S and a slat S as in Fig. 6, or by a superimposed slat S, Figs. 9 and 10, which latter figures also show a modification of the cylinder 1 and its connection with the levers B Figs. 11 to 16 show various forms of keys, any one of which is well adapted for the purpose; but when the machine is to be used by a person of deficient sight it is preferable to use a key having raised letters, as shown in Figs. 13 and 15.

Having thus fully described the invention of ARLOs GLIDDEN, what I claim as new, and desire to secure by Letters Patent, is-

1. In a type-writer, the spacing-box containing independent spacing-plates, in combination with slotted lug h, finger g, and mechanism, substantially as described, for con necting the fingerg' with a lifting-spring and the type-levers, as set forth.

2. The combination, with the spacing-box and plates, of lug 7b, a finger g, and frame G, and mechanism, substantially as described, for connecting the latter with spring-shaft E and through it with the key-levers, as set forth.

3. The combination of shaft E and key-1e" vers connected therewith, elbow lever F,

frame G, spring-finger g, spacing-plates, and lug h, as set forth.

4. The combination, with a rocking shaft, of a horseshoe-spring and knife-pivot, whereby the said shaft is held and returned to a normal position, substantially as specified.

5. The combination, with the carriage and spacing-box, of an upright, a horseshoe-spring clamping its lower end, and a chain or cord connecting its upper end with the carriage and box A, as set forth.

6. The combination, with the inking-ribbon M*, of the reel M having supporting-pins 'n, and the pivoted blocks n, adapted, as described, to be thrown outwardly from the axial center of the reel and toward the longitudinal center of the ribbon, substantially as and for the purposes set forth.

7. In a type-writer, the inking-ribbon, ar-

the invention of CARLOS GLIDDEN, deceased,

rangedin a direction oblique to that of the axis of the platen, substantially as and for the purposes set forth.

8.,The ink-ribbon reel Nihaving the ratchet-disk in the described relation thereto, in

iExeeutrt r of the last will and testament of combination with the elbow-lever and its pawl,

the spring-arm 5, and the inclined plate 41 on 3 the top of the box, the whole being constructed and arranged substantially as shown, and for the purposes specified.

9. The bracket M and its spring-arm and elbow-lever and its pawl, in combination with reel N? and its ratchet-disk, as set forth.

10. In a type-writer, a swiveled or gimbaled key, in combination with a plurality of keylevers, and mechanism whereby one key-stem may be made to depress any one of several key-levers.

11. The combination of key-levers having spindles projecting up from them with cylinders partitioned, as described, and having rectangular rims and with plungers and the keystems, as set forth.

12. The combination of springbracketsand key-stems gimbaled therein with the key-levers, and mechanism, substantially as described, for connecting them, as and for the purpose set forth.

In testimony that I claim the foregoing as I-have hereunto set my hand on this 12th day of April, 1883, in the presence of two wit- HQSSGS.


Carlos Gltdden, deceased. Witnesses:



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4761522 *Oct 6, 1986Aug 2, 1988Allen Donald EFinger operated switching apparatus
US4769516 *Aug 5, 1987Sep 6, 1988Allen Donald EFinger operated switching apparatus
US4913573 *Aug 18, 1988Apr 3, 1990Retter Dale JAlpha-numeric keyboard
US4917516 *Aug 15, 1988Apr 17, 1990Retter Dale JCombination computer keyboard and mouse data entry system
Cooperative ClassificationB41J11/0095