US 1172733 A
Description (OCR text may contain errors)
TYPE WRITING AND RECORDING MACHINE.
APPLICATION FILED FEB. 19. 1909 1,1?2383 Pmnted. Feb. 22, 1916.
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TYPE WRITING AND RECORDING MACHINE. APPLICATION FILED FEB. l9. 197 09.
1,172,733, v Patented Feb.19l".
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UNITED STATES PATENT FIE.
JOSEBH RABER, OF POPLAR BLUFF. MISSOURI, ASSIGNGR, BY MESNE ASSIGNMENTS,
TO THE DALTON ADDING MACHINE COMPANY, OF CINCINNATI, OHIO,
TION OF OHIO.
TYPE-WRITING AND- RECORDING MACHINE.
Specification of Letters Patent.
Patented Feb. 22, 1916..
Application filed FebrnaryIiS, 1909. Serial No. 478,967.
To all whom it may concern:
Be it known that I. JosErn' Rannn, a citizen of the Ifnited States, residing at Toplar B'lutl'. Missouri. have invented a new and useful 'ly1)c-\V1'iting and Recording Machine, of which the following .is a specification.
This invention relates to typewriting and recording machines in which inking ribbons are. used. and'more particularly to mecha nism for moving the ribbon during the operation of. the recording devices.
Heretofore in machines of the character referred to. it has been usual to' rotate the ribbon spool a fixed distance at each operation of the recording type, irrespective of the quantitv of ribbon wound on the spool. This operation, it is obvious, results in unequal movement of the ribbon, since when the ribbon is winding onto the small core of the spool it requires a greater rotation of the spool to take up a given quantity of ribbon than it does when the spool is more nearly filled.
The object of this invention is to provide a mechanism for use in the class of machines referred to. operable effectively to move the, ribbon a given distance across the printing point, irrespective of the quantity wound on the spool onwhich a ribbon is winding.
Figure l is a sectional view of a spool adapted for use' in a recording machine, showing my improved ribbon-feed mechanism in combination therewith. Fig. 2 is a side elevation thereof. Fin. 3 is a perspective view of the operating levers wherebv the movement of the ribbon is regulated. Fig. 4 is a perspective view of clutch device, which may be used instead of pawl and ratchet devices for rotation of the spool. Fig. 5 is a sectional view (it a spool and o .ieratin,c' mechanism in which the pawl carrying: lever is pivoted to the operating link and is provided with ]')in an(l-sl(lt connec tion with the regulating: lever. Fig. (i is a side elevation thereof. Fig. 7 is a perspective view of the operatinglevers detached tron'r the "spool.
some machines, such, for instance, as front the spools 1 are supstrike typewriters, ported on vertical shafts. while in others,
such as the typewriters of the basket type,
provided on its free end 'witha roller The'other arm of the lever 4 is pivoted to one end of the link 6, whose opposite end is connected to an operating link 7 by a pin 7, and which is arranged cording type. The means for accomplishing this ope at-ion is immaterial, as it may be effected by manywell understood devices. A lever S is pivoted at 9 to some stationary part of the machine and extends alongside of the wheel 3. having a pawl 10 pivoted to its free end bearing upon the periphery of the wheel 3 and engaging with the teeth thereon.- A spring 11 connecting the pawl 10 with the lever 8 holds said pawl in engagement with the wheel and prevents accidental displacement thereot. A slot 12 in the lever 8 receives the. pin 7 on the end of the operating link 7, constituting pinand-slot connection between these parts.
" From the foregoing it is plain that-oscillation of theoperating: link 7 will result in oscillation of the lever 8 and effect rotation of the spool through the medium of the pawl 10. causing" the ribbon 13 to wind onto said spool. The roller 5 bcaringagainst the outer roll of the ribbon as it winds onto the spool, will cause the lever 4 to move outwardly as the spool becomes tilled, causing the opposite arm of said lever to move the link 6 and the operating link 7 nearer the free end of the lever-8. There is equal movement of the link 7 at all operations, so that as the connection between the ope-rat in link and the lever 8 approaches the free end of saidv lever. the movement of the latter will diminish; the decrease in such to be oscillated. longitudinally at each operation of the re therefore that the quantity of the ribbon wound on the spool determines the scope of movement of the operating lever 8, said lever being moved a greater distance as required to wind an equal quantity of the ribbon onto the spool when the spool is empty, as is wound by less movement of the lever when the spool is partially filled.
A clutch device, as shown in Fig. l, may be used to operate the spool instead of pawl and ratchet shown in Fig. 1. The clutch device comprises a clutchmember 14, in the form of a cam, pivoted to the end of the lever S and held against movement in one direction by a pin 15. A spring 16 is arranged to actuate the member ll. from the pin 15 so that when the lever 8 moves in one direction the cam member will slide over the periphery of the wheel 3, but when with the wheel, and rotate the spool.
In the construction shown in Figs. 5, (3 and 7. a. lever 17, pivoted at 18, has one arm carrying a roller 19 between the flange 2 and the wheel 3. The other arm of said. lever is bifurcated and has a pin 20 passing through an arcuate slot 21 in a lever 22. The lever 22 carries pawls 23, which are held in engagement with the wheel by a spring 24. An operating link '25 is pivoted to the lever 22 between the lever 17 and v the pawl whereby'said lever will be operated by the link. As the ribbon winds onto the spool the lever 17 is operated and moves the same toward the end of the lever 22, thereby increasing the distance se'pa rating the pivot 20 from the operating link 25. This causes the end of the lever 22 to be moved in inverse proportion to the quantity of ribbonon the spool, whether the spool be operated to wind or unwind the ribbon with respect thereto. "In this construction the pivot 20 on which-the lever 22 op crates is movable, while In the construction.
shown in'Figpl the pivot 9 remains stationary and the operating link moves with respect to the pivot. 1
I am aware that there may be modifications andcalterations in the construction and arrangement of the parts embodying this invention without departure from the spirit and scope of the invention. and I do not restrict myself to identical. features of construction. or arrangement, but,
llVhat I claim and desire to secure ters Patent is. 1
1. In a recording machine, the combination with a revoluble spool adapted to re ceive the windings of a. ribbon, and a ratchet wheel for revolving said spool, of a support, a lever of the third class pivoted to said support, a pawl pivoted to said lever and engaging said ratchet wheel, an. actu-' ator connected to said lever intermediate said support and said pawl tor oscillating said lever and. said pawl to rotate said the -a pawl pivoted upon said lever and engag,
by Let- 1 ratchet wheel, a bell-crank lever actuated by the windings of the ribbon on said spool., and a connection between said bell-crank lever and said actuator for moving said actuator toward and away from said support: whereby said spool willi'be actuated varyin distances proportionate to-the quantity or ribbon wound thereon by uniform move ment of said actuator.
2. In a recording machine, the combination with a revoluble: spool adapted :to re ceive the windings of-a ribbon, and a ratchetv wheel for rotating said spool to wind the ribbon thereon, of a levenapawl supported by said lever andengaging said ratchet wheel. an actuator connected to said lever to' actuating said lever, a stationary sup- -port, a bell crank lever pivoted on said. stationary support, and a connection between said bell crank lever and said actuator for varying the extent of movement of said first named lever bynni't'orm movement of saidactuator.
3. In a recording machine, the comhina. tion with a spool aldapted to receive the windings ot a ribbon. and a ratchet wheel for rotating said spool ltO wind the ribbon thereon, of a stationarysupport, a lever piv oted upon said stationary support. a pawl on said lever engaging said ratchet wheel,
an actuator connected to said lever between sa d pawl and said support. a bell crank l6\ or under control of the ribbon wound on said spool, and a link operated by said bellfl crank lever for varying the position of said actuator with respect to said pawl to vary extent of movement of said first named lever in proportion'to the quantity of ribbon wound on said. spool and by uniform move ment of said actuator. 4. In a recordingmachine, the combination with a spool adapted to receive the windi ings of a ribbon, and a ratchet wheel for rotating said spool, of a lover of the thirdtc e e Q M said ratchet wheel. ana'ctuator connected "l:
saidlever for actuating the same, a bell crank. lever under control ot'v the ribbon woundon saidspool. and a connection between said bell crank lever and saidactuator for movinqsaid actuator toward and away from, sa'cl.
. )7 engagement w th said ratchet wheel, an,
actuator for actuating said lever, a bell cranklever controlled by the windings. of. therib- 1 bon on said spool, alinkconnected to said bell crank lever, and'a member" connecting said link with said actuator and extending into said slot, \vnereby said actuator will be moved toward and away from said pawl to vary extent of. movement of said pawl proportionateto the quantity of ribbon wound on said spool by uniform movement of said actuator.
6. In a recording machine, the combination with a spool arranged to wind up a ribbon, of a lover of the third class provided with a longitudinal slot, an actuator for actuating said lover, a member on said actuator extending into said slot, means for actuating said spool from said lever, a bell-crank lever actuated by the windings on the spool, and a connection from said bell-crank lever for moving said actuator away from the pivot of said lever in the proportion in which the ribbon winds on said spool to vary extent of said first-named lever by said actuator.
7. In a recording machine, the combination with a spool arranged to wind up a ribbon, of a suppcnt, a lever pivoted on said support and provided with a slot, a longi-- tudinally movable actuator connected into said slot for actuating said lever, means for actuating said spool by said lover, a belland away from said pivot.
S. In a recording machine, the combinat on with a spool, of a lever for actuating said spool, a pivot upon which said lever operates, an actuator connected to said lever for actuating said lever a bell-crank lever means for actuating said bell-crank lever by the windings on said spool, and a link for actuating said actuator from said bell-crank lever for varying the relative positions of said pivot and said actuator eifectively to vary the scope of movement of said lever in proportion to the quantity of ribbon wound on said spool by uniform movement of said actuator.
In testimony whereof, I hereunto affix my signatureto this specification this first day of February, 190.), in the presence of two witnesses.
' JOSEPH RABER. [L. s.] lVitnesses CHARLES .PIGKLES,
JOSEPH J. S'rnm ncnua.