US748831A - Type-writer - Google Patents

Description

No. 748,83L I PATBNTBD Juf-5,1904.

N. L. ANDERSQN. Y

TYPE WRITER.

APPLICATION FILED AUG. 24, 1903.- 150 HGDEL. v 4 SHEETS-SHEET 1.

Warum y A K y as. D, c.

n4: wams vivais co., PHoTo-LWM., Memer No. 748,831. PATENTED JAN. 5, 1.904.l

' N. L. ANDERSON.

TYPE WRITER.

APPLIOATIUN FILED AUG. 24, 196s.

4 SHEETS-SHEET 2.

no Monm..

dumm/hanf E. ANDERSON.

PATENTED JAN. 5', 1904,

TYPE WEITER.

APPLICATION FILED AUG. 24, 1903.

4 SHEETS-SHEET a.

' no xoDEL.'

Tun-.ummm mais co. Fumo-1mm wnsmwr-mn. D. c.

l PATBNTE'D JAN. 5,1904. N. L. ANDERSON.

TYPE WRITER. APPLIoA-Tmn Hup um. 24, 1903.

4 SHEETS-SHEET 4'.

110 IODEL.

ganse" l'oz Q/Vihwasco Montgomery,coun ty of Montgomery,and State UNITED STAT-Es PatentedJ'anuary 5, 1904.

PATENT OFFICE.

' TYPE-WRITER.

' SPECIFICATION formngppart 0f Letters Patent NO. 748,831, dated anuary 5, 1904:.

Y Application iiled August 24, 1903. Serial No. 170.546. (No model-l To cir/ZZ whom it may concern.- Be it known that I, NEAL LARKIN ANDER- SON, acitizeu of the United States, residing at of Alabama, have invented certain new and useful Improvements in Type-Writers; and I do hereby declare the following to be a full,

` clear, and exact description ofthe invention,

such as will enable others skilled in the art to which it appertains to make and use the same.

My invention Irelates to type-writing machines, and has for its object to provide'motor mechanism for propelling the paper-carriage'iuboth its advance and return movements and a primary powerdriven motor adapted to be operatively connected with the propelling-motor to restore the energy ofthe latter which has been depleted by the operation of actuating the carriage.

The invention contemplates the employment of a motor, preferably a spring-motor, for advancing lthe carriage in the printing operation', reversing mechanism to Vcouple' said motor to the carriage to return the latter to its initial position, which coupling operation may be accomplished either automatically at some predetermined point or manually by the operator at any point in ad- Vance of that determined by the adjustment of trip mechanism controlled by an auxiliary key, and a second motor, preferably-an electric motor, that is started and coupled to the first-mentioned motor'tc restore the energy of the latter iu Y the same operation that coupies the propelling-motor to the carriagefor the return movement of the latter, said electric motor being-automatically cutout of` circuit when -l he energy of the propelling-motor has been restored.

In the accompanying drawings, illustrative of my invention, Figure l is a transverse sectional view of the motor mechanism applied to a Remington type-writing machine. Fig. 2 is a'fron-t elevation thereof. Fig. 3 is a view corresp'ondingtothat of Fig. l, but showdetail views of the latch mechanism for holding the coupling between the power-wheel and the band-wheel out of engagement. Fig.

Bis a front elevation of they motor mechan- :ism, showing the relation of the parts at the completion of the return movement. Fig. 9

is a detail of the latch for holding the reversling-gear in operative position during the reyturn movement of the carriage. Fig. 10 is an enlarged rear elevation of the circuit-controlling mechanism; and Fig. l1 is a front elevation showing the mode' of applying the motor mechanism to a type-writing machine, and particularly illustrating the automatic and manualtrip mechanisms. L

For the purpose of illustration I have shown the invention as applied to a Remington type-writing machine and have omitted from the drawings such parts of the machine as are not necessary to illustrate the invention. It is to be understood, however, that the invention'is adapted to any class of machines having a reciprocating paper-carriage, as will be obvious to those skilled in the art.

`Referring to the drawings, l, 2, and 3 indicate, respectively, the base, supporting-uprights, and the top plate ofthe frame of a Remington type-writing machine. Supported in suitable brackets at'the rear left-hand side of the machine is a shaftor arbor B, upon which is loosely mounted a drum E, provided Witha Iiexible strap or band, connected at one'endio' the periphery of the drum and at the other to a projection ou the lower side of .the paper-carriage Q. The drum and strap referred to occupy a position -usually occupied hy the'spring-actuated drum of the ordinary Remington type-writer, andthe drum turns upon the shaft in the same manner that the usual drum turns during the reciprocation of the carriage. Said drum is provided with a ratchet-hub e', which is engaged by a springpressed pawl c2 of the character lemployed in 'the spring-drum of the Remington machine to permit the tension ofthe spring j' to be adjusted. The shaft B is provided with a collarfz, fast thereon, to which one end of a spiral spring f is connected, the opposite end` of said spring being connected to a gear-wheelv F, mounted loosely upon the collar f2.' The outer periphery of the wheel F is provided ICO with gear-teeth, which are constantly in mesh with the teeth of a pinion t, which is secured upon a shaft t, mounted in suitable brackets m m on the top plate of the machine, so that said pinion is adapted to revolve freely upon said shaft, but is caused to partake of the horizontal movement of said shaft, as will be hereinafter explained.

Near the periphery of the wheel F are a series of projecting pins h, which lie in a circular series within the rim of drum E. The drum E is provided with a cooperating pivoted pin h', which is held in position by a spring z, so that said pin h' commonly occupies a position to engage one of the pins h on Wheel F, as indicated in Fig; 1.

Pivoted to the front face of drum E is a latch N2, provided with a squared shoulder adapted to pass over the projecting end of pin h and hold the latter out of cooperative relation with pins h when said pin h has been depressed by mechanism to be described. A spring N4 tends normally to force the latch N2 into engagement with the pin h.

Pivoted t-o one of the uprights of the machine is a lever b5, to the other end of which is rigidly secured a crescent-shaped trippingarm c5, normally lying above the path of movement of pin h. Said lever b5 is connected by a suitable link be to an auxiliary keylever b?.

Secured in the bracket lm3 on the lower side of the top plate 3 is a bell-crank lever R, which is connected by a link R to the pivoted bar b5. The upper end of said bell-crank lever has a pin-and-slot connection with sliding shaft t, which shaft is normally moved toward the front of the machine by a coiled spring s, bearing at one end upon bracket m and at the other end upon a suitable Washer t6. Revolubly mounted upon the shaft t is a gear t3, having a lateral clutch-face adapted to engage a corresponding' clutch-face upon the pinion t4 when said shaft t and said pinion t4 are moved rearwardly. Gear t3 meshes with a rack G, secured to the lower side of the carriage Q by means of the usual bracketarms g, upon which the feed-rack is mounted. Pivoted to the bracket m is a latch N, which is normally pressed against the shaft by means of a spring t7, as shown in Figs. 8 and ll. The latch N is notched on its edge adjacent to the shaft and is adapted to engage a circular notch t8 on the shaftt when the latter is moved to the rear by the bell-crank 1ever R, so that said shaft will be held by the latch N in the position to which it is moved.

Mounted loosely upon the shaft B is a toothed disk or gear C, which is constantly in mesh with a gear t', loosely mounted upon shaft t. Pivoted to the face of said gear t adjacent to gear t3 is a pawl t2, engaging a ratchet t5, formed upon said gear t3. The relation of this pawl and ratchet is such that when the carriage Q is moved forward in the printing operation the gear t3 is rotated by its engaging rack G, and pawl t2 will idle upon the ratchet t5 and no motion will be imparted to gear t; but when said gear t3 is clutched to gear t4 and revolved in the opposite direction the pawl t2, engaging the teeth of ratchet t5, will cause said gear t to rotate in the same direction as gears 3154 and impart a rotary movement to gear C. Secured to the rearward face of the gear C and insulated therefrom is a conductor-ringVB, upon which bears a spring contact or brush W3, mounted upon and insulated from the casing of an electric motor A. Mounted in the inner periphery of said ring V3 is a ber insulating-block W, and at a short distance beyond this is a longer fiber block W. Secured to the shaft B and partaking of the rotation thereof is a fiber disk U, to the outer edge of which is secured a conductor-ring U, which is engaged by a second spring conductoror brushW2,mounted upon the motor-casing A. The disk U is provided with a radial perforation in which is mounted a spring-pressed brass pin X, which is held in contact with the ring V3 or gear C, so as to electrically connect conductor-rings V3 and U'. Bolted to the face of the typewriter frame is a small electric motor A, the shaft A2 of which is connected by reducinggearing to shaft B. Said motor is driven from a suitable source of power and may be of either the alternating or direct current type. The current, which is controlled by a suitable regulating-switch S in the bottom of the motor, is conducted from the binding-post aff to contact spring or brush W3, thence to conductor-ring V3 on gear C, thence by conductor-pin X to conductor-ring U on disk U, to spring contact or brush W2, through the motor-windings to binding-post d6 and switch X, back to the source.

The apparatus as thus described operates as follows: While a line isbeing written the several parts occupy the relation shown in Fig. 1, and drum E is clutched to gear F by cooperating pins h and h', as hereinbefore described. As each key is struck the drum E draws the carriage, by means of the band e2, from the right to the left hand side of the type-writin'g machine step by step under the iniuence of springf. During this operation pinion t4 and gear t3 idle upon shaft t. When it is desired to return the carriage to the beginning of the line, the operator presses upon the return-key connected with the key-lever b7, which by means of link b(i and lever b5 brings the crescent-shaped trip c5 against the pin h thus throwing said pin out of engagementwith the pin h and locking said pin h out of engagement by means of latch N2. The pin h is at once carried beyond the pin h', and the drum E is now free to move in a direction contrary to its former path of revolution, in the return of the carriage. The downward movement of lever b5 causes link R' to rock bell-crank lever R to force shaftt toward the rear of the machine, thereby engaging the IOO TIO

clutch-faces of pinion t4 andgear 3 and causing iatch N to engage the notch t8 in said shaft-and hold the latter in its operative position. The wheel F continuing to revolve under the tension ofspring f' drives the gear t3 through its clutch engagement with t4L in avdirection to reverse the carriage and return the latter to its initial position by ymeans of rack Gr, which is in mesh With said gear 3. The gears t3 t4 and rack G, therefore, constitute a reversing-gearing for the carriage. As said gear t3 is positivelyr driven pawl t2, engaging ratchet t5, causes gear t to rotate on shaft t and to impart a movement of rotation to disk C, With the result that pin X, which rests upon insulatingblock W, passes into contact with the conductor-ring V3 and the 'circuit to the motor A is closed, thereby causing the latter to start instantly and impart a movement of rotation to shaft Bin such direction as to rewind spring f', and thereby restore the tension of the propelling-motor. As soon as the carriage has reached its initial position the reversing-gearing and,ac'cordingly, gears t' and C, are arrested in their movement; but the motorAcontinues .to revolve until pin X engages insulatin g-block W', which arrests and materially reduces the-speed of the motor, which, however, is given an additional impulse as said pin X passes off of said block W', the motor being finally brought to rest when said pin X engages the second-fiber block W, at which time the Winding apparatus is restored to its original condition, as illustrated' in Fig. l. J ust before the return movement of the carriage is completed, however, the end of latch N4-strikes the depending end of latch N and throws the latter out of engagement with the notch in shaft t, thereby permitting spring 6 to draw saidshaft forward and di'sengage the coperating clutch-faces of pinion t4 and gear t3, so that the machine is ready for a continuation-of the Writing operation as soon as the carriage has been returned to its initial posiy'The return-key as designed provides for the return of the carriage at any point of the line beyond, say, 20 of the scale. When it is desired'to return the carriage at a position nearer the beginning ofthe line, it has been found most convenient to ldo so by hand, though the same method'of returncan be used at any point by slightly changing the size of the crescent-shaped trip c5.

In practice-an automatic return atsome fixed point has been found to be less-convenient than the use of a return-key. Consepropelling the carriage in both directions is` accomplished by a single motor that is connected directly tothe carriage furthe forward speed and that is coupled to the carriage by a reversing-gearing for the' return this arrangement it is only necessary to provide a spring-motor having power a little in excess of that necessary to feed the carriage forward -during the printing operation, and by coupling a train of reducing-gearing between the electric motor and the spring-drum of the propelling-motor the energy ofthe power-storing mechanism-namely, the electric motor required to wind the spring of the propelling-motor-is reduced to a minimum, measured at any instant during its operation. The Whole apparatus is, therefore, exceedingly simple in construction and efficient in operation and is capable of lbeing applied and operated by any person skilled in the operation of type-Writing machines.

Having thus described my invention, what I claim is 1 I l. A type-Writery having a paper-carriage, a motor forpropelling said carriage in its advance and return movements, reversing-gear adapted to connect the motor and the carriage for reversing the said carriage, a second motor for restoring the energy of the firstmentioned motor, and mechanism actuated by the reversing-gear to start said Second. motor when the carriage begins its reverse movement; substantially as described.

2. A type-Writer having a paper-carriage, a motor having a unidirectional rotation for propelling said carriage in its advance and return movements, mechanism for advancing the carriage step by step, reversing-gear adapted -to connect the motor and the carriage for reversing saidcarriage, means for sim ultaneonsly disconnecting the advancing mechanism and. connecting the reversinggear and thecarriage, a second motor for restoring the energy of the first-mentioned motor, and mechanism actuated by the reversing-gear to start said second motor when the carriage begins its reverse movement; sub

stantially as described.

3. A type-Writer having a paper-carriage, a motor having a unidirectional rotation for propelling the carriage in its advance and return movements, mechanism for advancing' the carriage step by step, reversing-gear adapted to connect the motor and the-'carriage for reversing said carriage, means for simultaneously disconnecting the advancing mechanism and connecting the reversing-gear and the carriage, a second motor for restoring the energy ofthe first-mentioned motor, and mechanism actuated by the reversinggearto start said second motor; substantially as described.

ICO

IIO

4.-. A type-writer having a paper-carriage, a motor having a unidirectional rotation for propelling said carriage in its advance and return movements, mechanism for advancing the carriage step by step, reversing-gear adapted to connect the motor and the carriage for reversing said carriage, means for simultaneously disconnecting the advancing mechanism and connecting the reversing-gear and the carriage, an electric motor geared to said first-mentioned motor for restoring the energy thereof,and a circuit-controller for the electric motor to start the said electric motor and stop the same when the energy of the rst motor has been restored; substantially as described.

5. A type-writer having a paper-carriage, a motor having a unidirectional rotation for propelling said carriage in its advance and return movements, mechanism for advancing the carriage step by step, reversing-gear adapted to connect the motor and the carriage for reversing said carriage, means for simultaneously disconnecting the advancing mechanism and connecting the reversinggear and the carriage, an electric motor geared to said first-mentioned motor for restoring the energy thereof, and acircuit-controller for said electric motor operatively connected with the reversing-gear to start the electric motor and to stop the same when the energy of the first motor has been restored; substantially as described.

6. A type-writer having a paper-carriage, a toothed power-wheel having a unidirectional rotation for propelling said carriage in its advance and return movements, a bandwheel adjacent to said power-wheel and connected to the carriage for advancing the latter,coperating clutch members on the powerwheel and the band-wheel, mechanism for disengaging said clutch members, reversinggear driven by said toothed wheel for reversing said carriage, connections between said reversing-gear and the clutch-disengaging mechanism for throwing the reversinggear into operation, an electric motor for restoring the energy of said power-wheel, and a circuit-controller for the electric motor to start the said electric motor and to stop the same when the energy of the power-wheel has been restored; substantially as described.

' 7. A type-writer having a paper-carriage, a toothed power-wheel having a unidirectional rotation for propelling said carriage in its advance and return movements, a bandwheel adjacent to said power-wheel and connected to the carriage for advancing the latter,coperating clutch members on the powerwheel and band-wheel, mechanism for disengaging said clutch members, reversing-gear driven by said toothed wheel for reversing said carriage, connections between said reversing gear and the clutch disengaging mechanism for throwing the reversing-gear into operation, an electric motor geared to said power-wheel for restoring the energy of said power-wheel, and a circuit-controller for said electric motor operatively connected with the reversing-gear to start the electric motor and to stop the same when the energy of the power-wheelhas been restored; substantially as described.

8. A type-writer having a paper-carriage,

a power-wheel mediately coupled thereto for propelling the carriage in its forward movement, means for coupling the power-wheel and the carriage to reverse the latter, a motor connected with the power-wheel to restore the energy of the latter, trip mechanism for disengagingthe forward driving-coupling and engaging the reverse driving-coupling, and means actuated by the reverse driving-coupling to start the energy-restoring motor when the carriage begins its reverse movement and to stop said motor when the energy of said power-wheel hasbeen restored; substantially as described.

9. A type-writer having a paper-carriage, a power-wheel mediately coupled thereto for propelling the carriage in its forward movement, means for coupling the power-wheel and the carriage to reverse the latter, an electric motor connected with the power-wheel to restore the energy of the latter, trip mechanism for disengaging the forward drivingcoupling and engaging the reverse drivingcoupling, and means actuated by the reverse A driving-coupling to close the circuit of the electric motor and to open the same when the energy of said power-wheel has been restored; substantially as described.

l0. A type-writer having a paper-carriage, a power-wheel mediately coupled thereto for propelling the carriage in its forward movement, reversinggear-for coupling the powerwheel and the carriage to reverse the latter,

an electric motor connected with the powerwheel to restore the energy of the latter, trip mechanism for disengaging the forward driving-coupling and engagingl the reverse driving-coupling, and a rotary circuit-controller actuated by the reversing-gear to start the electric motor when the carriage begins its return movement and to stop said motor when the energy of said power-wheel has been restored; substantially as described.

11. A type-writer having a paper-carriage, a power-wheel mediately coupled thereto for propelling the carriage in its forward movement, reversing-gear for coupling the powerwheel and the carriage to reverse the latter, said reversing-gear comprising a longitudinally-sliding shaft,a clutch-gear revolubly mounted upon said shaft and driven from said power-wheel, a second clutch-gear on said shaft to be operatively engaged by said rst gear, a rack on said carriage meshing with said latter clutch-gear, an electric motor connected with the power-wheel to restore IOO IIO

the energy of the latter, trip mechanism for power-wheel has been restored; substantially disengaging the forward driving coupling as described. 1o and simultaneously coupling the clutch-gears In testimony whereof I afx my signature t0 reverse the movement of lthe carriage, a in presence of two Witnesses.

5 rotary circuit-controller actuated by the re- NEAL LARKIN ANDERSON.

versing-gear to start the electric motor When Witnesses: the carriage begins'its return movement and BESSIE M. STEVENSON,

to stop said motor when the energy of said J. O. NEAL CRAIG.

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