US2113579A

US2113579A - Pinwheel feeding device

Info

Publication number: US2113579A
Application number: US108584A
Authority: US
Inventors: Henry G Dybvig
Original assignee: JOHN Q SHERMAN
Current assignee: JOHN Q SHERMAN
Priority date: 1936-10-31
Filing date: 1936-10-31
Publication date: 1938-04-12
Anticipated expiration: 1955-04-12

Description

April 12, 1933-` H. G. DYBvlG v v 2,113,579

PINWHEEL FEEDING DEVICE Filed Oct. 31, 1936 A, sa Q Patented pr. y12, 1938 orrics PENWHEEH FEEDING DEVECE Henry Gnlliybvig, Dayton, Ohio, assigner to .Bohn Q. Sherman, Dayton, Ohio This invention relates to a pin wheel feeding device and in more particular to a pin wheel feeding device mounted in an expansible platen.

An object of this invention is to provide an v expansible platen having a pin wheel feeding device adapted tofeed various widths of record material.

Another object of this invention is to have feeding pins project through variable length slots in the platen.

Another object of this invention is to provide llers for slots in the platen.

Other objects and advantages reside in the construction of parts7 the'combination thereof and the mode of operation, as will become more apparent from the following description.

Fig. 1 is a fragmentary perspective view of a typewriter showing rny platen.

Fig. 2 is a longitudinal sectional view of my 20 platen taken substantially on the line 2-2 of Fig. 5.

Fig. 3 is an enlarged fragmentary longitudinal sectional view taken substantially on the line 3-3 of Fig. 4 and drawn to a larger scale than the longitudinal sectional view shown in Fig. 2.

Fig. 4 is a fragmentary sectional view taken substantially on the line 4 4 of Fig. 3.

Fig. 5 is a transverse sectional view taken substantially on the line 5-5 of Fig. 2, but drawn to a larger scale than Fig. 2, and a. smaller scale than Figs. 3 and 4.

Fig. 6 is an enlarged fragmentary sectional view showing a tooth of the pin wheel feeding device cooperating with the edges of the longitudinal slots as a gear tooth.

The pin wheel feeding device used in this invention incorporates some of the principles disclosed in my copending application Serial No. 88,608 for Pin wheel feed, filed July 2, 1936.

In the past it has been general practice to provide round holes in the periphery of the platen of writing machines to permit the feeding pins to project therethrough into engagement with marginally punched feeding holes in superimposed strips of record material. Various at-y Other attempts have been made wherein the pin wheel feeding devices are adjustable axially,

so as to change the spacing' between the pin wheel feeding devices that usually are adapted to engage marginal holes in the superimposed strips of record materiali.` The distance between the pin wheel feeding devices has been spanned by removable platens or platen sections. These may be split so as to permit the easy removal of the sections. In shifting from one width material to another, sections having suitable length are selected for use between the pin wheels.'

In the device disclosed herein and forming the invention hereof, a platen having a plurality of equally spaced longitudinal slots in one end yhas been used. The slots permit the adjustment of one of the pin wheel feeding wheels axially, without interference from the platen. In order to permit the use of the platen between the pin Wheels, suitable strips having a tongued and grooved relation with the platen, fill the slots between `the pin wheels, so that as the pin wheels are separated the strips are drawn into the slots vacated by the adjustable pin wheel, so as to present a uniform writing surface to the record material advanced in registry past writing pdsition. *i

In the drawing the reference character I0 indicates the typewriter having a traveling carriage I2 supporting a platen Il. Instead of thecarriage I2 traveling to and fro, the type basket could be mounted for reciprocatory movement.

Platen mounting The platen Il includes a cylindrical member` I6, supported upon a pair of discs or end framesA I8 and 2li. In order to provide a proper cushion for the impinging type, the face of the cylinv drical member I6 is lined with rubber 22. One

In conventional. typewriters the platen is rotated by the operator grasping a knob disposed on either end of the reciprocatory carriage. The

Y platen may also be rotated automatically by the line spacing mechanism, which has not been shown in the present application, as the line spacing mechanism per se does notconstitute a part of applicants contribution to the art.

In the present modification the disc I8 is fixedly attached to a tubular member 30, journalled in the end frame to the left of the carriage, as shown in Fig. 2, which includes

members

32 and 34, each of which has been broken away for the sake of clearness. 'I'he tubular member 30 is iixedly attached to a gear 36, meshing with a pinion 38, driving a gear 40, xedly attached to a suitable knob 42 and supported upon a bracket 44 xedly\ carried by the end of the end frame of the carriage I2. As the operator grasps and rotates the knob 42, the gear 40 driving the pinion 38 actuates the gear 36 and with it the platen I4.

The disc 20 located and supporting the opposite end of the cylindrical disc I6 is iixedly attached to the tubular sleeve 46, having ixedly attached thereto a knob 48. 'I'his tubular sleeve 46 is mounted for rotation in the journal 50, ilxedly attached to the carriage. As the operator grasps the knob 48 and rotates the same, the platen I4 is rotated.

Pin wheel feeding device The pin wheels and 62 are rotatably mounted upon a shaft 64 eccentrically disposed with respect to the center of rotation of the platen I4. The shaft 64 has one end mounted upon a bracket 66 fixedly attached to a stub shaft 68 passing` through the tubular member 30 and xedly attached to member 44. The opposite end of the shaft 64 is mounted upon a bracket 10 ilxedly attached to a tubular sleeve 12, mounted for rotation within tubular member 46. As member 44 is non-:rotatably mounted, and the stub shaft 68 i'lxedly attached thereto, together with member 66, it can be readily seen that the eccentrically disposed shaft 64 does not rotate with the platen. The feeding pins 14 in pin wheel 60 and the feeding pins 16 in pin wheel 62 cooperate with the apertures 24 and the slots 26 to drive the

pin wheels

60 and 62 as the platen I4 is rotated. The feeding pins 14 and 1li-function the same as gear teeth, which mesh with-what might be referred to as gear sectors, that is, the edges of holes 24 and the edges of slots 26 respectively.

Lateral adjusting mechanism for pin wheels The pin wheel 62 is adjustable laterally or axially along the shaft 64. This is permissible due to the slots 26 which extend longitudinally in equally spaced relation' from the end of the platen toward the center thereof, or as faras desirable. The pin wheel 62 is provided with a hub 80 having a flange 82 at one end thereof and-a flange 84 at the opposite end. 'I'he fiange 84 abuts a collar or yoke 86 integral with an internally threaded member 88 threadedly engaging a threaded rod 80 terminating in a knob 92. As the knob 82 is rotated, the rod 00 winch cannot be moved axially, actuates member 88 either to the left or the right, as viewed in Fig. 2. When it is actuated to the right, the collar or yoke 86 engaging the flange 84 moves the pin wheel 62 to the right.

j The flange 82 on the left end of the hub 80, as

viewed in Fig.- 2, engages an inwardly projecting annular flange S4 integral with member 86, which is rotatably mounted upon member 88 andheld in position by a nut 91. When member 88 is actuated to the left as viewed in Fig. 2, the ini wardly projecting flange 94 integral with member 86, engaging the flange 82, actuates the pin wheel 62 to the left.

Member 88 is connected to member 88 bya bridging member 88 that extends between the vflange I4 and the outer path of movement of the feeding pins 16 can-led by the pin wheel 62.

\ marginally punched record material of various widths.` If, for example, record material eight inches wide is used,

feeding wheels

60 and 62 are adjusted so as to engage the marginal holes in such paper. I f the paper is an inch or two wider, the pin wheel 62 is moved approximately an inch or two to the right, so as to accommodate the wider paper. In order to utilize the paper it is necessary to fill or cover the slots between 'the pin wheels. If these slots are not covered, the type impinging upon the record material would mutilate the same.

Slot filling members Slot'lling members or strips |00 areprovided with longitudinal tongues |02 seated in grooves |04 extending along the edges of the slots' 26. Members |00 are lined or faced with a rubber facing |06. One end of each strip |00 is fixedly attached to the periphery of member 96, which is adjusted to the right or to the left as the case may be, in unison with the pin wheel 62. 'I'he grooves |04 are curved inwardly, so as to cause a portion of the strips |00 to lie within the periphery of the platen when not in use. Thus, it may readily be seen that the stripsY 00 passing through the grooves |04 are actuated with the pin wheel, so that as the pin Wheel 62 is moved axially to the right, as viewed in Fig. 2, the space vacated by the pin wheel is filled with the strips |00. When the pinwhee1 is actuated to the left, the feeding pins 16 are moved into the portion of the slots vacated by the strips |00.

The strips |00, together with annular member 96, rotatably mounted upon member 98, rotate A is not provided with marginal feed holes, the.

pin wheel 62 may be actuated to the right suiilciently far to provide clearance for both of the margins of the writing material between the pins of the

pin wheels

60 and 62, as clearly shown in Fig. 1, wherein a piece of paper is shown in writing position between the

pin wheels

60 and 62.

For the convenience of disclosure the wheels of the platen have been shown of much heavier material V than would be required in actual'production. This has been done for the sake of clearness.

Instead of one end being provided withslots, both ends of the platen could be slotted, the slots of one end being arranged in staggered relation withV respect to the slots of the other end. The feeding pins would then also be arranged in stagL gered relation, which would require marginally punched record material provided with rows of apertures arranged in staggered relation. Filler members found in each of the slots of both ends may be adjusted axially so as to expand or con- By this arrangement a greater differential in Width of record materials may be used uponI the platen.

Although the preferred modication of the device has been described, it will be understood that within the purview of this invention various changes may-be made in the form, details, proportion and arrangement of parts which'generally stated consist in a device capable of carrying out the objects set forth, in the novel parts, combination of parts and mode of operation, as disclosed and defined in the appended claims.

Having thus described my invention, I claim:

1. In a pin wheel feeding typewriting machine, a pair of pin wheels, a platen including a cylindrical member having openings adjacent one end and a plurality of longitudinal slots adjacent the other endfthe openings and the slots receiving the feeding pins of the pin Wheels, and

a plurality of filler members one for each of the,

slots adjustably mounted therein, said filler members cooperating with the cylindrical member so as to present a uniform Writing surface over at least a portion of the slotted end of the cylindrical member.

2. In a pin wheel feeding typewriting machine, a platen including a cylindrical member enclosing the pin wheel, said cylindrical member including a plurality of longitudinal slots equally spaced around the periphery of the cylinder, and a plurality of filler members adjustably mounted in xed relation .with respect to the pin Wheel so that as the pin Wheel is adjusted longitudinally the filler members move with the pin wheel so as to present a uniform writing surface on one side of the pin wheel.

3. In a writing machine having feeding pins for advancing the record material in registry past writing position, a platen including a. cylindrical member having slotted openings arranged in equally spaced relation around the periphery adjacent one end, the feeding pins projecting through the slots, and ller members arhustably mounted in the slots to one side of the feeding pins, said filler members cooperating with the slotted portion of the cylinder to present a uniform writing surface over at least a portion of the slotted end of the cylindrical member.

4. In a writing machine, the combination of a platen including a cylindrical member having a plurality of equally spaced longitudinalv slots adjacent one end thereof, filler members adjustably mounted in the slo'ts with adjustable feeding pins adapted to project through the slots cyclically, means for supporting the feeding pins, said feeding pins being adjustable axially with respect to the platen, the ller members being adjustable in unison with the feeding pins so as to cooperate, withY the slotted portion of the.

cylinder to present a uniform writing surface along one side of the feeding pins.'

5. In a pin wheel feeding device for advancing superimposed strips of punched record material in .registry past the writing position of a Writing machine, the combination'including a cylindrical platen having a plurality of longitudinal slots adjacent one end thereof, said .platen having a resilient facing, adjustable members for filling at least portions of said slots, saidl adjustable members being provided with a resilient facing Aso as to present a. uniform surface to at least a portion of the slotted end of the platen.`

6. In a pin wheel feeding device for advancing superimposed strips of marginally punched record material in registry past the writing position 75 of a writing machine,vthe combination of a pair of' pin wheels, one of which is adjustably mounted for axial adjustment with a cylindrical platen having a roW of peripherally anranged pin holes adjacent one end for the feeding pins of one of said 'pin wheels, and a plurality of longitudinal slots in the other end thereof, the feeding pins of the adjustably mounted pin Wheel projecting through said slots which permits axial adjustment of said pin wheel.

'7. In a p'm wheel feeding device for advancing superimposed strips of marginally punched record material in registry past the writing position of a writing machine, the combination of a cylindrical platen having peripherally arranged holes adjacent one end and a plurality Lof longi-4 tion of a writing machine, the combination of a pair of pin wheels, one of which is adjustably mounted for axial adjustment with a cylindrical platen having peripherally arranged holesv adjacent one end for the feeding pins of one of said pin wheels, a plurality of longitudinal, slots in the other end of the platen, the feeding pins of the adjustably mounted wheel projecting through the slots, which permit axial adjustment of said pin Wheel, and filler members for the por- Wheels.

9. In a pin Wheel feeding device for advancing superimposed strips of marginally punched record material in registry past the writing position of a writing machine, the combination of a pair of pin wheels, one of which is adjustably mounted for axial adjustment with a cylindrical platen having peripherally arranged holes adjacent one end for the feeding pins of one of said pin Wheels,

.a plurality of longitudinal slots in the other end of the platen, the feeding pins of the adjustably mounted wheel projecting through the slots,

which permit axial adjustment of said pin wheel, and adjustable members one for each of the slots adapted to be adjusted into position to.close the .portions of the slots located between the pin Wheels to present a uniform writing surface.

l0. In a pin wheel feeding device for advancing superimposed vstrips of marginally punched rec- -ord material in registry past the writing position of a writing machine, the combination of a pair of pin wheels, one of which is adjustably mounted for axial adjustment with a cylindrical i platen having peripherally arranged holes adjacent one end for the feeding pins bf one of said pin wheels, a plurality of longitudinal slots in the other end of the platen, the feeding pins of tion of the slots located between the feeding the adjustably mounted wheel projecting through the slots, which permit axial adjustment of said pin wheel, said slotshaving the sides thereof grooved, and tongued ller members adjustably mounted in the slots to fill a portion thereof to one side of the pin wheel feeding device.A

1l. In a pin wheel feeding device for advancing superimposed strips of marginally punchedV record .material in registry past the Writing position of a writing machine, the combination of a the feeding pins-of the adjustably mounted pin` wheels projecting through said slots which permit axial adjustment of said pin wheels, and

means mounted for adjustment with said adjustable pin wheel for closing the Kportions of the slots located intermediate Athe pin Wheels.

12. In a pin wheel feeding device for advancing superimposed strips of marginally punched record material in registry past the writing position of a Writing machine, the combination of a holes adjacent one end and a plurality of longipair of pin wheels, one of which is adjustably mounted for axial adjustment with a cylindrical platen having peripherally arranged openings adjacent one end for the feeding pins of one of said pin Wheels,a plurality of longitudinal grooved slots in the other end of the platen, the feeding pins of the adjustably mounted pin wheel projecting through said slots which permit axial adjustment of said pin Wheels, adjustable filler members having tongues seated in said grooved slots, and means adjustably mounted with the pin wheel for adjusting the filler members in unison with the adjustment of the pin` wheel.

13. In a pin wheel feeding device for advanc' ing superimposed strips of marginally punched record material in registry past the writing position of a writing machine, the combination of a cylindrical lplaten having peripherally arranged holes adjacent one end and a plurality of longitudinal slots adjacent the other end, with a pair of eccentrically disposed pin wheels one of which is adjustably' mounted for axial adjustment,

means accessible from the.exterior of the platenV for axially adjusting said adjustable pin wheel, and means for filling the portions of the slots between the pin wheels, so as to present a uniform writing surface on the platen.

' 14. In a pin wheel feeding device for advancing superimposed strips of marginally punched reccrd material in'registry past the writing position of a writing machine, the combination of a cylindrical platen having peripherally arranged tudinal slots adjacent the other end, with a pair of eccentrically disposed pin wheels one of which is mounted for axial adjustment, the feeding pins ofl one of the pin wheels extending through said holes and the feeding pins of the adjustable pin wheel extending through said slots, means accessible from the exterior of the platen for acljusting said adjustably mounted pin wheel, and means rotatablyV mounted-upon said adjusting means for filling the portions of the slots between the pin wheels.

15. In a pin wheel feeding device for advancing superimposed strips of marginally punched record material in registry past the writing position of a writing machine, the combination of a cylindrical platen-having peripherally arranged holes adjacent one end and a plurality of longitudinal slots yadjacent the'other end, with a pair of eccentrically disposed pin wheels one of which is mounted for axial adjustment, the feeding pins of one of the pin wheels extending through said holes and the feeding pins of the adjustable pin wheel extending through said slots, means accessible from the exterior of the platen for adjusting said adjustably mounted pin wheel, means including an annular member rotatably mounted upon said adjustable means, and a plurality of strips xedly attached to said annular member for lling the portions of the slots between the pin Wheels. t

16. In a pin wheel feeding device for advancing superimposed strips of punched record material in registry past the writing position of, a Writing machine, the combination including a pair of eccentrically mounted pin Wheels, one of which is adjust-able axially, a cylindrical platen having peripherally arranged openings adjacent one end for the feeding pins of one of said pin wheels and a plurality of longitudinal slots in the other end thereof, a shaft eccentrically mounted terior of the platen for axially adjusting said ad-v justable pin wheel having its pins projecting through said slots so as to accommodate various widths of record material.

17. In a pin wheel feeding device for advancing superimposed strips of punched record material in `registry past the writing position of a writing machine, the combination including a cylindrical platen having peripherally arranged openings adjacent one end and 'a plurality of longitudinal openings adjacent the other end, a shaft eccentrically mounted within the platen, a pair of rotary pin wheels mounted upon the shaft, one of which has its feeding pins projecting through the openings in one end of the platen, the other having its feeding pins projecting through said longitudinal openings, means accessible from the exterior of the platen for adjusting said other pin wheel axially, and means including movably mounted strips for filling the portion of the longitudinal openings located between the pin wheels.

18. In a pin wheel feeding device for advancing superimposed strips of punched record material in registry past the writing position of a Writing machine, the combination including a cylindrical platen having peripherally arranged holes adjacent one end and aplurality of longitudinal slots adjacent the other end, a shaft eccentrically mounted within the platen, means accessible from the exterior of the platen f or holding the shaft in a stationary position, a pair of pin wheelsfrotatably mounted upon said shaft, the pins of one of which project through said holes and the pins of the other project through the slots, the feeding pins cooperating with the holes and the slots as gear teeth to rotate the pin wheels at substantially the same peripheral speed as the peripheral speed of the platen.

19. In a pin wheel feeding device for advancing superimposed strlpsof punched record material in registry past the writing position of a Writing machine, the combination including a cylindrical platen having peripherally arranged openings, a shaft xedly mounted but eccentrically disposed Within the platen, a pair of pin wheels rotatably mounted upon said shaft, said pin wheels having the teeth thereof projecting through the openings of the platen, and means accessible from the exterior of the platen for adjusting at least one of said pin wheels -axially the teeth thereof being shifted in the openings of the platen so as to accommodate record material of various widths.

20. In a pin Wheel feeding device for advancing superimposed strips of punched record material in registry past the writing position of a writing machine. the combination including a rotary cylindrical platen having peripherally arranged openings adjacent one end and a plurality of longitudinally arranged slots adjacent the other end, an adjustably mounted shaft eccentrically disposed within the platen, a pair of pin wheels rotatably mounted upon said shaft, l

one of which has the feeding pins adapted to project through said openings and the other hav.. ing the feeding pins adapted to project through said slot-s, adjustable means including a member straddling one of said pin wheels for adjusting the same axially, said member including an annular race concentrically disposed with respect to the axis of rotation of the platen, and rotary means mounted upon said race including members for filling the portions of the slots intermediate the pin wheels.

21. In a writing machine writing are, a platen forming the writing area, said platen including a cylindrical member having a plurality oi longitudinal slots eq spaced around the periphery of the cylindrical member, and a plurality of ller members adjustably mounted in said slots, the adjustment of said filler members adjusting the eective width of the writing area.l

22. Ina Writingmachine having an adjustable writing area, a platen-.forming the writing area, said platen having a. plurality of equally spaced having an adjustable parallel slots, and illler members adjustably mounted in said slots, the adJustment of said filler members adjusting the size' of the effective writing area.

23. In a writing machine havingLa positive feeding device for aligning the record material upon the writing area, the combination including a feeding device for aligning the record material upon the writing area, a platen forming the writing area, said platen including a. plurality, of

equally spaced parallel slots, 'and ller members adjustably mounted in said slots, the adjustment' of said filler members changing the size ot the effective writing area upon the lplaten.

2d. In a writing machine having a pin feeding device for positively advancing the record material over an adjustable writing area, the combination including a pin feeding device adjustably mounted, a platen forming the writing area, said platen including a plurality of equally spaced parallel slots through which at least some of the feeding pins project, and ller members adjustably mounted in said slots, the adjustment of said lller members changing the size of the eilectlve writing area upon the platen.

HENRY G. DYBVIG.