US752215A

US752215A - A corpo

Info

Publication number: US752215A
Authority: US
Publication date: 1904-02-16
Anticipated expiration: 1921-02-16

Description

PATENTBDTEB, 16", 1904.

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1-15 TTURNEY APPLICATION FILED NOV. 20/1901:

W G FARNUM 7 TYPE WRITING MACHINE.

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Patented February 16, 1904...

UNITED STATES 1 PATENT OFFICE.

WILLIAM C. FARNUM, OF ARLINGTON, VERMONT, ASSIGNOR TO UNION TYPEVVRITER COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPO- RATION OF NEW JERSEY.

SPECIFICATION forming part of Letters Patent N0. 752,215, dated February 16, 1904.

Application filed November 20, 1901. Serial No. 33,011. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM C. FARNUM, a citizen of the United States, and a resident of Arlington, in the county of Bennington and State of Vermont, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

My invention relates to a feed mechanism for platens of type-writing machines. whereby the platen may be rotated independently of the usual line-spacing mechanism thereof in order that any point on the paper may be brought to the printing-line without adjusting the paper on the platen.

The object of my invention isto provide a simple and efiicient device of the character specified; and to these and other ends, which will hereinafter appear, the invention consists in the novel arrangement and combinations of parts to be hereinafter described and claimed.

In the accompanying drawings, wherein like reference characters designatecorresponding parts in the various views, Figure 1 is a top view of a platen and platen frame, showing the application of the device which constitutes the subject-matter of my invention. Fig. 2 is an enlarged fragmentary longitudinal sectional view taken on the line a: w of Fig. 5. Fig. 3 is a detail edge view of portions of the mechanism to be hereinafter described. Fig. 4 is an enlarged transverse sectional detail view of the device, the section being taken on the line y of Fig. 2 and lookingin the direction of the arrow in said figure. Fig. 5 is an end view of the parts shown in Fig. 1, the view looking toward the right-hand end of the platen.

The invention is shown in the' accompanying drawings as applied to the platen and platen-frame of a No. 6 Remington machine, it being understood that various of the paperfeeding instrumentalities have been omitted.

In the drawings, 1 indicates a platen-frame in which a platen 2 is mounted to rotate. The platen may be provided with the usual fingerwheel 3 at the left-hand end thereof. The

4 by any suitable means, and the right-hand end of the platen-shaft 4 projects beyond the platen-frame and is headed at 5,and thus prevents an outward movement of certain of the parts. The head on the shaft is preferably obtained by aheaded screw, the stem of which is received in a threaded opening in an end of the shaft, the head of said screw being the head 5. Loosely mounted upon the shaft 4 is a sleeve 6, which is limited against longitudinal movement on the shaft by a collar? thereon and a gear-wheel 8, which is secured to the shaft by a screw 9. The sleeve 6 has secured'thereto a line-spacing wheel 10, the

' sleeve andwheel being united by a feather 11. Big'idly secured to the sleeve 6 is a fingerwheel 12, which is hollow and adapted to surround the various planet-gears, to be hereinafter described. A gear-wheel 13 is secured by a feather 14; to the sleeve 6, so as to rotate therewith. Projecting to the right of the finger-wheel12 is a second finger-wheel 15, which is mounted loosely upon the platen-shaft a and has secured to the inner face thereof a disk 16, that carries a laterally-projecting headed stud 17, which constitutes a pivotal bearing for a carrier 18, that is recessed at 19 to form a bearing for cooperation with the pivotal stud or pin 17. This carrier is likewise provided near one end with a slotted bearing 20 for the reception of a shaft 21 of the dilferential planet-

gears

22 and 23, which are connected to rotate together by a pin 22*. That end of the carrier 18 which is on the opposite side of the pivotal bearing 19 is apertured at 24 for the reception of one end of a spring 25-, and the opposite end 26 of this spring is bent to form a hook-like bearing, as shown in Fig. 4:, that cooperates with a stud 27, that projects from the disk 16. The flexion of the spring 25 tends to maintain the planet-

gears

22 and 23 in close engagement with their oooperating gears 8 and 13, so that no lost motion or backlash will take place in the movement of the gears. From an examination of Fig. 2 it will be observed that the disk 16 closes the open end of. the finger-wheel 12, so

platen 2 is rigidly secured to the platen-shaft i that the various planet-gears are entirely inclosed by the finger-wheel 12 and the disk 16, and there is no liability of the gears becoming disarranged in the manipulation of the machine, and the parts are maintained free from accumulating dust and present a neat appearance. The line-spacing wheel is provided on its periphery with ratchet-teeth 28, with which a line-spacing pawl 29 cooperates. The pawl 29 is pivotally connected at 30 to one arm 21 of a two-arm line-spacing lever, which is pivoted to the platen-frame at 32. The other arm 33 of this two-arm lever is provided with a finger-piece 34, by means of which it may be vibrated, the parts being restored to the normal position by a coiled spring 35, which is secured at one end to the platen-frame and at its opposite end to the two-arm linespacing lever. The line-spacing pawl 29 is provided with a depending arm 36, which is adapted to abut against a piece 37 which is pivoted to the platen-frame at 38 and is provided with three faces 39', against any one of which the depending arm abuts when the parts are in the normal position, depending upon the position to which the piece 37 has been moved or rotated around its pivot 38, it being understood that suitable means are provided to retain the piece in any one of the three positions to which it may be adjusted. In this manner a change in the extent of throw of the line-spacing lever and pawl is effected in order to turn the line-spacing wheel one, two, or more teeth, as determined by the positioning of the piece 37 and in the feed movement of the pawl 29 the depending arm 36 abuts against and is limited by a pin 36 carried by the arm 31. This arm 31 likewise carries a rigid locking-pawl 31 which at the limit of the feed movement of the pawl 29 will be brought into engagement with the teeth of the linespacing wheel 10, thus looking it against further rotation.

Cooperating with the peripheral teeth on the line-spacing wheel 10 is a roller 40, which is supported by a spring 41, that is secured at 12 to the platen-frame and whichpresses the roller against the teeth. This spring-pressed roller 40 tends to maintain the line-spacing wheel against accidental displacement.

In the operation of the device for ordinary line-spacing a rotation will be given to the line-spacing wheel 10 by. the spacing-lever, and a corresponding rotation will be transmitted to the platen 2 by reason of the fact that the various gears are in mesh, and the

gears

22 and 23 will revolve bodily with their cooperating gears and with the finger-wheel 12. Should the operator desire to provide a differential spacingthat is to say, provide a rotating movement of the platen which differs from that which may be attained with the line-spacing wheel 10it is merely necessary to rotate the finger-wheel 15, which will cause the disk 16 to be rotated with it, thus carrying the differential gears '22 and 23 around their shaft and the line-spacing wheel 10 or to rotate the platen with relation to the line-spacing wheel when the latter is held against movement. The spring detent-roller 4:0 is relied upon in order to secure the line-spacing wheel against movement during this rotation of the parts by means of the finger-wheel 15.

The finger-wheel 12 is at all times efiective to move the line-spacing wheel 10 and the platen 2 together, all of the parts at this time being moved bodily, as is the case when the line-spacing wheel itself is operated by the pawl 29.

It will be understood that the device for moving the platen with relation to the linespacing wheel is effective, not only to provide a differential spacing that cannot be attained by the ordinary line-spacing device for filling in partly-printed blanks and the like, but that it is eifective to change the various points of impact of the type upon the platen or to distribute the wear, so that the entire surface of the platen may be used and the wear will not be produced at fixed lines thereon.

From the foregoing it will be understood that the line-spacing wheel, the difierential gearing, and regulating finger-wheel therefor may be located at one end of the platen andoutside of the platen-frame; that said device may be situated wholly outside of and extraneous to the platen; that said devices do not occupy any of the space between the end bars of the platen-frame, and that it is unnecessary to reduce the length of the platen to accommodate said devices; that it is unnecessary to provide a special construction of the platen in order to employ the devices, and that they may be readily applied to existing forms of typewriting machines.

While I have shown the gear-

wheels

22 and 23 as separate wheels that are connected to rotate together, obviously they'may be made ,wheel, and a finger-wheel rigidly connected line-spacing wheel and the platen-shaft, and hand-operated means for moving said train of gears to eifect a movement of the platen and platen-shaft independently of the line-spacing wheel, the said train of gears, line-spacing wheel and hand-operated means being located at the same end of the platen.

2. In a type-writing machine, the combination of a line-spacing wheel, a finger-wheel rigidly connected thereto, a platen-shaft, a platen secured thereto and adapted to be turned independently of the line spacing wheel, a train of gears cooperating with the line-spacing wheel and the platen and adapted to rotate bodily therewith when the line-spacing wheel is rotated for regular line-spacing or when said finger-Wheel is turned, and handoperated' means for 'moving said train of gears to effect a movement of the platen and platen-shaft independently of the line-spacing wheel for fractional spacing.

, 3. In a type-writing machine, the combination of a line-spacing wheel, a platen-shaft, a platen secured thereto and adapted to be turned independently of the line-spacing wheel, a train of gears cooperating with the -line-spacing wheel and the platen and adapted to rotate bodily therewith when the line-spacing Wheel is rotated for regular line-spacing, hand-operated means for moving said train of gears to effect a movement of the platen and platen-shaft relatively to the line-spacing to the line-spacing wheel for rotating the line-spacing wheel, the gears, the platen-shaft 'and the platen all together for regular linespacing.

4:. In a type-writing machine, the combination of a line-spacing Wheel, a platen adapted to move independently thereof, planet-gears cooperating with the line-spacing wheel and platen, and means for turning the planetgears to effect a movement of the platen independently of the line-spacing wheel, said linespac'ing wheel, planet-gears, and the means for turning the planet gears being located at one end of the platen.

5. Ina type-writing machine, the combination of a platen-frame, a line-spacing wheel, a

platen adapted to move independently thereof,

planet-gears cooperating with the line-spacing wheel and platen, means for rotating the platen line-spacing wheel and planet-gears together as a whole, and means for turning the planetgears to effect a movement of theplaten independently of the line-spacing wheel, said'linespacing wheel, planet-gears and the means for turning the planet-gears for differential spac- 6 ing being located at the end of the platen and outside of the platen-frame.

6. In a type-writing machine, the combina-' tion of a line-spacing wheel, a platen adapted 'to move independently thereof, planet-gears cooperating with the line-spacing wheel and platen, a finger-wheel rigidly connected to the line-spacing wheel and operatively connected to the planet-gears and platen, for rotating them togetheras a Whole, and a finger-wheel for turning the planet-gears to effect a movement of the platen independently of the linespacing wheel.

7. In a type-writing machine, the combination of a line-spacing Wheel, a platen adapted to move independently thereof, planet-gears cooperating with the line-spacing wheel and platen, means for turning the planet-gears to effect a movement of the platen independently of the line-spacing wheel, and spring-pressed means for maintaining a close engagement betweenvarions of said planet-gears.

8. In a type-writing machine, the combination of a platen, a line-spacing wheel, a fingerwheel operatively connected thereto, planet gears contained within said finger-wheel and cooperating with the platen and the line-spacing wheel, and'means independent of said finger-wheel for turning the planet-gears to effect a movement of the platen independently of the line-spacing wheel.

9. In a type-writing machine, the combination of a platen, a line-spacing wheel, differential planet-gears cooperating with the platen and the line-spacing Wheel, means for turning the planet-gears to effect a movement of V the platen independently of the line spacing wheel, and line-spacing mechanism cooperating with the line-spacing wheel to effect a movement thereof together with the platen,

movement of the platen independently of the line-spacing Wheel, and line-spacing mechanism cooperating with the line-spacing wheel to elfect a movement thereof together with the platen, and means for locking said line-spacing wheel against rotation.

11. In a type-writing mach ine, the combination of a line-spacing wheel, a platen adapted to move independently thereof, a finger-wheel adapted to rotate the platen and line-spacing wheel together, toothed planet-gears cooperating with the line-spacing wheel and platen, said planet-gears being effective to aflord a rotation of said finger wheel, line spacing wheel and platen together, a second finger wheel carrying certain of said toothed planetgears and adapted to rotate the same to effect 'a movement of the platen independently of the line-spacing wheel, and means for retaining the line-spacing wheel against movement while said second finger-wheel is being rotated.

12. Ina type-writing machine, the combination of a line-spacing wheel, a platen adapted to move independently thereof, a finger-wheel adapted to rotate the platen and line-spacing wheel together, toothed planet-gears cooperating with the line-spacing wheel and platen, a finger-wheel carrying certain of said toothed planet-gears and adapted to rotate the same to effect a movement of the platen independently of the line-spacing wheel,movable means for retaining the line-spacing wheel against movement and spring-pressed means for maintaining said toothed gears in close mesh to prevent lost motion or backlash.

13. In atype-writingmachine, the combination of a line-spacing wheel, a platen adapted to move independently thereof, a finger-wheel adapted to rotate the platen and line-spacing wheel together, toothed planet-gears cooperating with the line-spacing wheel and platen and surrounded by said finger-wheel, a regulating finger-wheel, a carrier connected to said regulating fingerwheel and carrying certain of said toothed planet-gears and adapted to effect a movement of the platen independently of the line-spacing wheel. v 14. Inatype-writing machine, the combination of a line-spacing wheel, a platen adapted to move independently thereof, a hollow openended finger-wheel, planet-gears contained within said finger-wheel and adapted to cooperate with the platen and line-spacing wheel, and hand-operated means for actuating said planet-gears to rotate the platen independently of the line-spacing wheel, said hand-operated means including a disk which closes the open end of the hollow finger-wheel.

15. In atype-writing machine, the combination of a platen, a line-spacing wheel adapted to move independently thereof, a train of gears cooperating with the line-spacing wheel and the platen, and hand-operated means for moving said train of gears to effect a movement of the platen independently of the line-spacing wheel, said hand-operated means including a pivoted spring-pressed carrier for certain of said planet-gears.

16. In a type-writing machine, the combination of a platen, a line-spacing ratchet-wheel therefor, a finger-wheel rigidly connected to said ratchet-wheel, a gear-wheel which is connected to the ratchet-wheel, and gear connections for operatively connecting the ratchetwheel to rotate with the platen when said finger-wheel is turned or for effecting a movement of the platen with relation to the linespacing wheel. v

17 In a type-writing machine, the combination of a platen, a line-spacing ratchet-wheel therefor, a finger-wheel rigidly connected to the ratchet-wheel, intermediate differential gearing between said ratchet-wheel and the platen which enables the line-spacing ratchetwheel and platen to be turned together through said finger-wheel, and means independent of the finger-wheel for transmitting movement to said differential gearing and thereby effecting a movement of the platen relatively to the ratchet-wheel.

18. In a type-writing machine, the combination of a platen, a line-spacing ratchet-wheel, a finger-wheel rigidly connected to the linespacing ratchet-wheel for rotating said platen and ratchet-wheel together, a regulating finger-wheel, and a train of intermediate differential gearing between said regulating fingerwheel and the platen, and between the regulating finger and ratchet wheels, whereby a movement of the regulating-wheel is effective to move the platen relatively to the ratchetwheel, said regulating finger-wheel, line-spacing wheel-and differential gearing being located at one end of the platen.

19. In a type-writing machine, the combination of aplaten, a line-spacing ratchet-wheel, a finger wheel rigidly connected to said ratchet wheel for rotating said platen and ratchet-wheel together, a regulating fingerwheel movable independently of the platen, and a train of intermediate differential gearing between said regulating finger-wheel and the platen and between the regulating finger and ratchet-wheels, certain of said gears being carried by the regulating finger-wheel, whereby a movement of the regulating fingerwheel is effective to move the platen relatively to the ratchet-wheel, said gearing forming an operative connection from the first-mentioned finger-wheel to the platen so that said fingerwheel is effective to turn the line-spacing wheel and platen together.

20. In a type-writing machine, the combination of a platen, a line-spacing ratchet-wheel, a finger-wheel for rotating said platen and ratchet-wheel, a regulating finger-wheel, a gear.

connected to said ratchet-wheel, a gear connected to the platen, and a gear which is carried by the regulating finger-wheel and cooperates with the other gears to effect a movement of the platen with relation to the ratchetadapted to revolve with and to turn relatively v to theregulating finger-wheel and which cooperates with the other gears to effect a movement of the platen with relation to the ratchetwheel when the regulating-wheel is turned.

22. In a type-writing machine, the combination of a platen, a line-spacing ratchet-wheel therefor, a train of differential gears cooperating with the platen and ratchet-wheel, and hand-operated means for operating said gears to effect a movement of the platen with relation to the ratchet-wheel, said line-spacing wheel, gears and hand-operated means for actuating the gears being located outside of the platen and at one end thereof.

23. In atype-writing machine, the combination of a platen, a line-spacing ratchet-wheel therefor, a train of differential gears cooperating with the platen and ratchet-wheel, handoperated means for operating said gears to effeet a movement of the platen with relation to the ratchetwheel, and independent hand-operated means for tiirning the ratchet-wheel, platen and gears together to effect the linespacing movement of the platen.

2a. In a type-Writing machine, the combination of a platen, a line-spacing ratchet-wheel therefor, a train of toothed differential gears cooperating with the platen and ratchet-wheel, hand operated means for operating said toothed gears to effect a movement of the platen with relation to the ratchet-wheel, and a spring for maintaining the gears in close mesh and to avoid lost motion.

25. In a type-writing machine, the combinaand gears together to effect a turning of the platen for ordinary line-spacing.

Signed at Arlington, in the county of Bennington and State of Vermont, this 15th day of November, A. D. 1901.

WILLIAM C. FARNUM.

Witnesses:

FRANKLIN Soo'r'r, J. J. KEATOR.