US2390612A

US2390612A - Reinking machine for typewriter ribbons

Info

Publication number: US2390612A
Application number: US464487A
Authority: US
Inventors: Leon L Ogg
Original assignee: Individual
Current assignee: Individual
Priority date: 1942-11-04
Filing date: 1942-11-04
Publication date: 1945-12-11
Anticipated expiration: 1962-12-11

Description

Dec. 11, 1945. L. oee

REINKING MACHINE FOR TYPEWRITER RIBBONS Filed Nov. 4, 1942 4 Sheets-Sheet 1 Dec. 11, 1945. L. OG'G 2,390,612

REINKING MACHINE FOR TYPEWRITER RIBBONS Filed. Nov. 4, 1942 4 Sheets-Sheet 2 Dec; 11, 1945. L. ose 2,390,612

REINKING MACHINE FOR TYPEWRITER RIBBONS Filed Nov. 4, 1942 4 Sheets-Sheet 3 Dec. 11, 1945. L. oee 2,390,612

REINKING MACHINE FOR TYPEWRITER RIBBONS Filed Nov. 4, 1942 4 SheetsSheet 4 Patented Dec. 11, 1945 OFFICE REINKING MACHINE FOR TYPEWRITEB RIBBONS Leon L. Ogg, Creston, Iowa Application November 4, 1942, Serial No. 464,487

Claims.

This invention relates to a machine for re-inking or re-conditioning typewriter ribbons or other printing ribbons to enable continuous use of the same base or fabric thereof.

It is particularly aimed to provide a novel machine through which the ribbon is passed and during which passage ink is applied to it and spread evenly in the desired quantity. And in which the ribbon is subjected to variable pressure to produce a squeegee effect thereon.

I further aim to provide a novel means for quickly enabling journaling of the spool from which the ribbon is unwound and the spool on which it is rewound.

In addition, it is aimed to provide a novel ink reservoir and means whereby it may be supported and refilling thereof is facilitated.

The more specific objects and advantages will become apparent from a consideration of the description following taken in connection with accompanying drawings illustrating an operative embodiment.

In said drawings:

Figure 1 is a plan view of the improved machine;

Figure 2 is a partial side elevation thereof;

Figure 3 is a central vertical longitudinal sectional view:

Figure 4 is a vertical transverse sectional view taken on the line 4-4 of Figure 3;

Figure 5 is a vertical transverse sectional view taken on the line 55 of Figure 3;

Figure 6 is a vertical transverse sectional view taken on the line 6-6 of Figure 3;

Figure 7 is a detail section taken on the line of Figure 3;

Figure 8 is a detail section taken on the line 8-8 of Figure 1 and Figure 9 is adetail sectional view showing a modified form for journaling the shafts of certain rolls.

Figure 10 is a vertical longitudinal section showing more clearly the disc and cam assembly.

Referring specifically to the drawings wherein like reference characters designate like or similar Parts, the machine has a suitable skeleton frame work generally designated Ill. The typewriter or other printing ribbon is shown at H and is treated by the machine after it fades or becomes worn in use in a typewriting machine and requires reinking or further ink to enable reuse thereof, thus enabling the base or fabric of the ribbon to be used practically continuously. This ribbon as applied to the machine, is mounted on a spool l2 of conventional design, which in most cases will be the spool on which it is wound before removal from the typewriting machine. Said spool I2 is ripped on opposite sides, at the usual central opening by thepointed ends of arbors l3 and I4 mounted in any suitable way as by vertical bearing blocks l5 riveted or otherwise secured at It to a cross member I! at the top and right hand end of the frame Ill. Each arbor l3 and I4 has a manipulating knob l8 at the free end thereof. Arbor I3 is secured in place normally against movement by a setscrew l9 and arbor I 4 is secured in place normally against movement by a setscrew 20. A coil spring 2| surrounds the arbor I4 and is expansive, bearing at one end against the adjacent block l5 andat the other end agai st a disk 22 on the arbor, so that when the setscrew 20 is loose, the spring will urge the arbor l4 and disk 22 into effective contact with the spool l2 to Journal the latter, the screw 20 being thereafter tightened to hold the arbor l4 against their movement.

Said ribbon I I is threaded beneath a roll 23 and between the latter and an ink applicator 24. Said applicator consists primarily of an endless strip or band of felt or other absorbent material traversing upper and

lower rollers

25 and 26. Roll 25 23 is keyed to a shaft 21 journaled in any suitable manner on the frame l0, preferably with its ends mounted in suitable bearings or bearing openings thereof. Roll 25 is keyed to a shaft 23 while roller 26 is keyed to a short shaft 29, the latter being journaled in plate 30 loosely suspended on the shaft 28. A positioning hook 3| has one end of shaft 29 iournaled in it and its hook end 3:2 is in detachable suspending engagement with the shaft 21.

The applicator 24 is obliquely disposed with its lower end portion in a trough or well 33 suitably mounted on the frame In.

Ink is adapted to be supplied or flow by gravity into the trough 33 from a suitable reservoir 34 through an outlet fitting 35 and hose or conduit 36 whose discharge end is located in the trough. Fitting 35 is equipped with a suitable sight gage 31 and with a cutoff of regulatmg valve at 33..

Reservoir 34 has a filling opening which is normally lowermost asshown in the drawings and covered by a screw threaded cap or closure 33.

Cap 39 has a tapered dependent 40 which'is detachably engaged in a recess 4| provided in one of the side strips 42 of the frame an. Reservoir 34 has a vent pipe 43 in communication with the atmosphere and capable of being closed by a valve 44 therein.

Reservoir 34 and all parts connected thereto are removable from the frame and capable of support on the normally upper surface of the reser voir 34, since all parts attached thereto are normally below the level of that surface. When thus supported or inverted, closure 39 may be removed to enable filling of the reservoir, following which the closure is applied to the reservoir and the parts restored to normal position with the dependent or lug 40 removably disposed in recess or socket 4|.

Applicator 24 also in combination with the roll 23 has a squeegee effect on the ribbon to cause the ink to evenly penetrate the same and even distribution without excess ink being absorbed or carried thereby. To this end, roller 25 is vertical- 1y adjustable. The ends of shaft 28 are journaled in bearings 45 which are vertically slidable in slots or ways 46 provided in brackets 41 as part of the side strips 42 of the frame. Said bearings 45 are nonrotatable as they have fiat portions conforming to the vertical walls of the ways 46. Shaft 28 has loosed thereon, disk 48 and in contact therewith are cams 49 keyed to a shaft or rod 50 which is journaled in the frame l and at one end has a manipulating knob Through turning of the knob 5|, the cams 49 since they contact the peripheries of the disk 48, will cause raising or lowering of the shaft 28 and roller 25 thereon, with consequent regulation of the pressure of applicator 24 with respect to the roll 23 and the ribbon l.

After passage over the applicator 24, ribbon ll passes under a roll 52, thence upwardly and over a roll 53, thence downwardly under a roll 54, thence over a roll 55 and then to a rewinding roll 56. The

shafts

51, 58 and 59, on which the

rolls

52, 53 and 55 are respectively keyed, may be journaled in any suitable manner for instance in bearin s 60, as detailed in Figure 8, which bearings are slidably adjustable and fastened to the frame in any suitable manner as by means of screws 6| passed through elongated slots 62 in the bearings.

The shaft 63 on which roll 54 is keyed may be joumaled in the same way as the shaft 21. As an alternative way of journaling both the shafts 21 and, I may use cap bearing 64, as shown in Figure 9. These cap bearings or sockets receive the adjacent ends of the

shafts

63 or 21 and the bearings have lugs or extensions '65 engaged in openings in the side strips 42 and fastened against .turningtherein by the binding action of setscrews 66 threaded in the side strips.

The rewind roller or reel 56 may be a conventional typewriter spool like that at 12 and another spool which is used in the windin mechanism -for the ribbon in the typewriter. Reel 56 is gripped from opposite sides by

shaft sections

61 and 68 journaled in the side strips 42 and bearings 69 of the frame In, or in any other suitable manner. Shaft 68 has a relatively large disk l0 keyed to it which is adapted for frictional engagement against one side of the reel 56 as best seen in Figure 4. Shaft section 68 also has a reduced extension 1| which extends into the central opening of the reel 56. Shaft section 61 is pointed at 12 to also extend into t e same opening and the frictional engagement between the plate Ill and shaft 61 with the reel is augmented by the expansive action of a coil spring 13 abutting one of the side strips 42 and a stop 14, fastened on the shaft. A knob for retracting or manipulating the shaft 61 is fixed thereon at 15.

The various rolls may be driven or rotated in any suitable manner. As shown, a pulley I6 is keyed to shaft 21 and adapted to be manually .turned through operation of a crank l l. Trained ersing a pulley l8 keyed to the shaft 88. A balance wheel 80 may be keyed to the latter shaft.

An endless belt 8| also traverses

pulleys

82 and 83, respectively fixed on the

shafts

21 and 63.

As a result of the construction described, it will be realized that the ribbon wound on the reel I2 is positioned in the machine through the positioning of the reel L2 as shown in Figures 1, 3 and 6, in particular that such ribbon is threaded in the manner shown and traced through the various rolls and in contact with the ink applicator 24 having a squeegee effect in combination with roll 23, to evenly and to the proper amount, reink such ribbon. The rewound ribbon is removed with the reel 56 and the same again used in the typewriting or other machine.

Various changes may be resorted to provided they fail within the spirit and scope of the invention.

I claim as my invention:

1. A machine of the class described having means to mount a reel from which an inking ribbon is unwound, means to mount a reel for rewinding of said ribbon, and means to apply ink to the ribbon in its passage from one reel to the other comprising a roll, a shaft therefor, an endless absorbent applicator engageable with the ribbon in opposition to the roll providing a squeegee action on the ribbon and applicator, a roll over which the applicator passes, a shaft for the latter roll, a second roll over which the applicator passes, means pivoted on the second mentioned shaft journaling the said second roll from th second mentioned shaft, means mounting the second mentioned roll, and an inkwell into which one end of the applicator extends.

2. A machine of the class described having means to mount a reel from which an inking ribbon is unwound, means to mount a reel for rewinding of said ribbon, and means to apply ink to the ribbon in its passage from one reel to the other comprising a roll, a shaft therefor, an endless absorbent applicator engageabie with the rib bon in opposition to the roll providing a squeegee action on the ribbon and applicator, a roll over which the applicator passes, a. shaft for the latter roll, a second roll over which the applicator passes, means journaling the said second roll from the second mentioned shaft, means pivoted on the second mentioned shaft mounting the second mentioned roll, and an inkwell into which one end of the applicator extends, said means mounting the second mentioned roller comprising a shaft, a plate journaling thelatter shaft and mounted on the second mentioned shaft, and means engaging the first mentioned shaft and shaft of the second roller suspending the plate at one end from said first mentioned shaft.

0 means pivoted on the second mentioned shaft journaling the said second roll from the second mentioned shaft, means mounting the second mentioned roll, and means to apply ink to the applicator, slidablebearing means mounting the over the pulley 16 is an endless belt I8 also travsecond mentioned shaft, an eccentric means coacting with the second mentioned shaft and slidable bearing means so as to adjust the pressure of the applicator with respect to the first mentioned roll.

4. A machine of the class described having means to mount a reel from which an inking ribbon is unwound, means to mount a reel for rewinding of said ribbon, a second reel on said means, and means to apply ink to the ribbon in its passage from one reel to the other comprising a roll traversed by the ribbon, and an ink well, an ink applicator extending into the well and engaging the ribbon outside or the well in opposition to the roll providing a squeegee action on the ribbon and applicator.

5. A machine of the class described having means to mount a reel from which an inking ribbon is unwound, means to mount a reel for rewinding of said ribbon, a second reel on said means, and means to apply ink to the ribbon. in its passage from one reel to the other comprising a roll traversed by the ribbon, and an ink well, an ink applicator extending into the well and enaging the ribbon outside of the well in opposition to the roll providing a squeegee action on the ribbon and applicator, and means to vary the pressure of the applicator with respect to the roll and ribbon.

LEON L. OGG.