US633827A - Type-writing machine. - Google Patents

Description

Ro.; 533,a27. i j Patant ed Sept. 26, 1399. w. n. Fox a a. J. BARRETT;

TYPE WRITING MACHINE. I

- (Application filed Nov. 26, 1897.

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No. 633,827. Patentedsept 26, I899.

w. n. FOX get-.1. BARRETT.

TYPE WRITINGIAOHIRE.

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. Patentd septhz'sQ 1899.- w. R. -F0X &. e'. JQ'BAR'BETTL f TYPE 'WBITlNG MACHINE.

(Application med Nov. 28, 1 897.-

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(Nq llodel no, 1533,8 27. Patented S pt. 2s, lass. -Vfwfi. Fox.& a. .1. BARRETT.

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(Applicatiun filed xov. 26,1392

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- UNITED STATES- PATENT other- \VILLIAMxRFOXAND GLENN J. BARRETT, or GRAND RAPIDS, MICHIGAN,

ASSIGNORS TO 'rnnrox MACHINE COMPANY, or SAME PLACE.

- 'TYPE-WRITING M ACi-H N E v srncrrrca'rron forming part of Letters Patent No. 633,827, dated September -2c, 1899.

hpplication filed November as, test. Serial No. 659,898. (NomodeLl To allwhm t it Til/(Ly col o ern Be it known that we, WILLIAM FOX and GLENN J. BAR-REIT, citizens of the United State's, residing at Grand Rapids,Kent county,

Michigan, have invented certain new anduse v fnl Improvementsin Type-Writers, of which the following is a specification.

Itis the object of our invention to provide a ribbon movement for type-writers in which so as to utilize the entire width of the ribbon.

automatically; and in connection with this mechanism our object is to provide an automatic reversing mechanism, so that the iongitudinal movementof the ribbon will be reversed when the predetermined amount of ribbon has been Wound upon either spool.

In the drawings, Figure 1 is a side elevation of our invention, partly in section. Fig.- 2 is an elevation of the same looking from the front, the paper-carriage and other parts being omitted, so as to show the connections to the springdrum, whichdrum is located at the rear left-hand end of the machine. Fig. 3 is a rear view showing the mechanism at the two ends of the machine. Fig.4 is a plan view of the mechanism at opposite ends of the machine. .Figs. 5 and 6 are views of a modified form of reversing mechanism. Fig. 6 is a plan view, of Fig. 6 with parts insection. other modification. the same. Fig. 9 is a detail view showing the arrangement of pawl and its operatingwire located at the opposite end of the machine from that shown in Fig. 8. y

The spring-drum 22 turns about the shaft 25 in the direction of the arrow, Fig. 2, in drawing the paper-carriage from right to left as the keys are being operated.

21 is a ratchet fixed to a gear 28, so as to 1'0- tate therewith freely about the drum-shaft 25. This ratchet is turned in the direction of the arrow, during the printing and the movement of the paper-carriage from right to left by a pawl 26, pivoted to the spring-dram 22.

The gear 28 is, elliptical and engages with a similar gear 20,fixed on the shaft 29, jourhalted in the hanger 23.

Fig; 7 is a view similar to Fig. 1 of an Fig. 8 is a front view of,

Onthe other end of the shaft 29 a ratchet 19 is ii r'edand engaged by a pawl 27, pivoted to the hanger-frame 23. This pawl will prevent any back movement of the ratchet when the drum is turning in the opposite direction and the carriage is being returned to normal position. Pivoted echehtfioally to this ratchet is a pitman 9, the lowerend of which is pivoted to an arm 9 of the spool-carrier frame 1, which frame is se cured to a rock-shaft 30, so that the turning of the ratchet will reciprocate the pitman, and this will oscillate the spool-carrier frames 1, one of which is at each side of the machine. T his transverse movementof the ribbon is given while the carriage is moving from right to left and the printing is being done, the spring-drum rotatingin the direction of the arrow, Fig. 2. Te utilize this oscillating movement of the spool-carrying frames to cause the step-by-step rotation of the spools, and co'nseqnently the longitudinal movement of the ribbon.

I 32 is a ratchet-Wheel fixed to the shaft 3 of the spool 2. A screw 39 holds the spool to the shaft, so that the spool will rotate with the ratchet. A pawl l i is pivoted on the pawlcarrier arm ct, which is pivoted to the frame at a to oneside of the pivot-shat t of the spoolcarrier. The upper end of this carrier'passes through a guide a" on the spool-carrying frame, so that as this frame swings forwardly and backwardly the pawl-carrier will move therewith, so that the pawl will always be held in the plane of the ratchet-teeth. i The pawl is weighted at 14, and a stop-pin 14. limits its movement. hen the pawl engages'its ratchet and the spool-carrier swings, the pawl will turn the ratchet, owing to the swinging movement of the pawl-carrier and' ribboncarrier, which move on different pivots, so that the pawl and ratchet will move through different arcs which out each other. We employ an oscillating spool-carrier frame 1 at seen end of the machine, and the mechanism connected therewith is duplicated at the right-hand end of the machine,excepting the spring-drum and part of the mechanism between the same and the pitman 9,and we aim to provide controlling mechanism whereby the spool-actuatingpawl 14 at one end of I do the machine will be out while that at the other will be in engagement with the spool-ratchet. For this purpose we utilize the rocking movement of the spool-carrier frames, together with the decrease in the size of the spool being wound.

In the spool-corcs 2 grooves l0, Fig. 3, are formed, and dogs 4, pivoted at 33 to the spooloarrier frames 1, are arranged to drop with their free ends into these grooves when the spools are unwound. As the spool is wound and reaches the predetermined size, however, the dog will be raised. These dogs carry bellcrank levers 1010, pivoted on axes which permit them to swing or move substantially in a horizontal plane. The arms 11 11 of these bell-crank levers are forked, and they embrace the extended curved ends of the pawl-carriers a, while the other arms of said levers lie in or out of the plane of the lower ends of pins 8 8', which depend from the frame, according to whether the dog is down in the groove 40 or held up by the ribbon on the spool. Then the dog falls down into the groove, owing to the unwinding of the ribbon from the spool, the arm 11 or 11 of the bell-crank lever which forms the tail of the dog is raised into line with the lower end of the shift or reversing pin 8 or 8, and then when the spool-carrier rocks toward the rear the arm of the bellerank will strike the pin and it will be turned thereby, so that the forked arm 11 will shift the pawl-carrying arm toward the ratchet to engage the pawl therewith. A rod 12 connects the paw-'l-carrying arms, so that the pawl at one side of the machine will be disengaged from the ratchet when the other pawl is thrown in. In Fig. 3 the pawl on therightis in engagement with its ratchet, while that on the left is out of engagement; but the dog 4 on the left has now fallen, owing to the unwinding of the lefthand spool, and the tail of the bell-crank is now in line with the lower end of the post 8', so as to engage with and be shifted thereby when the spool-carrier frame is oscillated. A spring 19 may be used to press upon the pawlcarriers to hold them in their shifted position.

Instead of providing the gravity-dogs with bell-crank levers as described, for effecting the reversal of the ribbon movement we may, as shown in Figs. 6, 7, and 8, provide the dogs with tailpieces 4, extending upwardly there from. To a depending post on the frame we pivot a bell-crank lever 10, the forked end of which, 11, projects downwardly to engage the laterally-bent end of the pawl-carrier, as at 11 The other arm of the bell-crank lever has a wire 1O connected therewith, and when the spool is unwound and the dog falls into the notch the tailpiece of the dog is brought opposite the end of the wire 10 so that in the oscillation of the spool-carrier the tailpiece will operate the wire, and this through the bell-crank will shift the pawl-carrier to make its pawl engage with the ratchet. In this form of the invention the pawl-carriers may be connected together by the cross-rod,

and, as shown in the main form of the invention, a turnbuckle may be provided in this rod for adjustment.

Instead of using the pawl-carriers we may support and operate the pawls 14 by means of bell-cranks 13, as shown in Figs. 7 and 8, which are pivoted to the spool-oarrier frames 1 at 34. Wires A are connected with these bell-cranks and are pivoted at their lower ends to the frame at S at some distance in rear of the shaft 30 of the spool-carrying frames, these wires performing substantially the same function as the pawl-carriers before described, as their upper ends describe arcs from different centers from those described by the spool-carrying frames, and as these arcs intersect each other an oscillating movement will be given to the bell-cranks which carry these pawls, and a step-by-step movement will be imparted to the spools. In this modification the reversing mechanism for the spools comprise wires 10 connected to bellerank levers 17, pivoted to standards 18 on the frame, said wires protruding through openings in the sides of the spool-carrying frame to have sliding movement therein. The outer arms of the bell-crank levers are connected through wires 11 with arms 24, projecting from a cross-shaft 6 and fixed rigidly thereto. From these arms wires 15 connect with the pawls by means of a loop and pin 38, this connection being made in rear of the pivot of the pawl on one side of the machine and in front of the pivot of the pawl on the other side of the machine, so that the movements of the pawls will be reversed relatively to each other and when one pawl is thrown into operation the other pawl will be thrown out. The operation of this is substantially the same as that above described, the unwinding of the spool causing the tailpiece of the dog to operate the bell-cran k and through the wires 11 and 15 throw one pawl into work and the other pawl out of work by the operation of the shaft 6.

From the above it will be seen that the oscillation of the spool-carrying frame is effected through the step-by-step movements of the spring-drum of the carriage, and this oscillating movement is utilized both to rotate the spools step by step and to secure the automatic reversal of the ribbon-feed. The gears 20 and 28 are made elliptical to secure a uniform motion of the pitman 9 and to avoid dwelling upon dead-centers.

As shown in Fig. 3, the pivot a for the lower end of the pawl-carrier a is a universal one, as it allows the carrier to have movement toward the front and back of the machine or from side to side of the machine.

XVe claim as our invention- 1. In combination, the ribbon-spools, the pivot-ed oscillating frames carrying the same and adapted to give the ribbon a transverse movement, pawls and pawl-carriers actuated by the pivoted frames for turning the spools step by step and reversing mechanism controlled by the oscillations of the spool-supporting frames, said pawl carrier having movement with the oscillatingframe and having also movement in aplane extending from side to side of the machine, substantially as described. r

2. In combination, in a ribbon movement, the ribbon-spools, the oscillating frames supporting the same to give said spools a transverse movement, the pawls for turning the ribbon-spools, carrier means for the pawls consisting of the arms having movement from front to rear and also in a direction from side to side of the machine, means for placing the pawls in and out of engagement and controlling means therefor carried by the oscillating frames, said controlling means being actuated by the unwinding or Winding of the ribbon upon the spools, substantially as described.

3. In combination, in a ribbon movement, the spools, the oscillating frames carrying the same, the pawls for turning the ribbon-spools, the eccentrically-pivoted carriers for actuating said pawls, said carriers oscillating with the frames, the bell-cranks for controlling the carriers and the controlling-dogs at pivoted to the oscillating frames and controlling the position of the bell-cranks and the means for operating the bell-crankssaid means being rendered effective through the change in the position of the dogs, substantially as described.

4. In combination, the oscillatingspool-carrying frames, the spools thereon, the ratchetwheels on the spool-shafts having peripheral teeth, the pawls adapted to engage and disengage said teeth by a substantially radial movement in aplane transversely of the spoolshaft, a controlling-dog carried by the spoolframe and controlled by the ribbon, and means between said dogs and pawls to give them their radial movement for the reversing action, substantially as described.

5. In combinati0n,the pivoted spool-frames, the pawls, the carriers therefor having universal pivots at their lower ends to allow movement of the carrier in all directions, reversing means for the pawls and carriers and the connections between the carriers, substantially as described.

6.111 combination, the movable spool-- frames, the pawls, means carrying the pawls and to which they are pivoted, dogs carried by the spool-frames, bell-cranks between the dogs and the pawls and in permanent connection with the pawls and means for operating the bell-cranks, said means being rendered effective to operate the bell-crank by the movement of the dog, substantially as described.

7. In combination, the spools, the supporting-frames therefor movable transversely of the machine, the pawls rendered active by the transverse movement of the ribbon-spools, controlling means carried by the frames and acted upon by the ribbon, and actuating means supported on the machine-frame and arranged to aline with the means carried by the frames for reversing the position of the pawls when the spool unwinds.

8. In combination, the spools with the sup porting-frames therefor movable transversely of the machine, the pawls rendered active by said transverse movement, and reversing mechanism comprising the dog controlled by the ribbon, the operating device connected thereto to move therewith, and the device on the machine-frame to aline therewith in one position ofthe dog to actuate the operating device, substantially as described.

9. In combination the tran sversely-movable frames and spools, the pawls, and reversing mechanism comprising the dogs, the bellcrank levers carried thereby and connected with the pawls and means on the frame for operating the bell-cranks, substantially as described.

10. In combination, the movable spool-carrier, the reversing mechanism comprising the dogs controlled by the ribbon, the bell-cranks carried by the dogs, the posts on the frame Witnesses:

ELIZABETH JONES,

Fnnnons C. GORI-IAM.

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