US1644144A - Type-wheel-aligning device for marking machines - Google Patents

Description

I 1,644 144 1927' R. OSBORNE ET AL TYPE WHEEL ALIGNING DEVICE FOR MARKING MACHINES Filedoc t. 19. 1926 f afn'uprrior. W? M;

Patented Oct. 4, 1927.

- UNITED STATES 1,644,144 PATENT OFFICE;

RAYMOND OSBORNE AND CHARLES E. MILLER, or CIN INNATI, oIIIo, ASSIGNORS TO THE NATIONAL MARKING MACHINE COMPANY; or CINCINNATI, OHIO, A CORPORA- T-ION OF OHIO.

TYPE-WHEEL-ALIGN'ING DEVICE FOR MARKING MACHINES. I

Application filed October 19, 1926. [serial Nof1'42, ss1.

Our invention relates to that class of marking machines illustrated and described in the Jatent to Chester-V. Canine, lssued functions of the marking machine as a whole..

Our object isg-to provide simple, durable and inexpensive means for automatically aligning the type imprinting position upon the various type bearing wheels, sothat when a printing operation is effected the type will all be in line.

More specifically it is our object. to provide a-series of springs which may be readily, quickly and easily applied, and in which the tension may be readily, quickly and easily adjusted to suit the requirements, springs are designed to engage the toothed pinions which in turn engage the type bearing wheels, and whereby when thepinions are actuated to move the type bearing wheels to printing position, the springs will auto;

" mati'cally move the said pinions to proper positions for aligning the type and automatically holding them in such position during the printing operation.

Our invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in our claims, and illustrated in the accompanying drawings, in which:

Figure 1 shows a side view illustrating a part of a laundry marking machine of the ordinary construction with our improvement applied thereto, parts of the frame being broken away to show our improved type aligning device.

Figure 2.shows a top or plan view illustrating a groupof the toothed pinions having our improved aligning device applied thereto.

Figure 3 shows an enlarged, detail, sectional view through our improved aligning device, and illustrating a portion of the toothed pinion engaged by one of the springs of the aligning device.

Figure 4 shows an enlarged, detail, perspective view of one of the springs of our im 'roved ali ning device; and

Figure 5 s ows an enlarged, detail, perwhich spective view illustrating the shaft upon which the aligning springs are mounted.

Y Referring to theaccompanying drawings, we have used the reference numeral 10 to indicate generally the frame of'a printing machine having thereon" astationary platen 1 11. Pivotallymounted on the frame 10 upon the shaft 12 is a tilting printing frame 13 having mounted therein a shaft 14.. Loosely v mounted upon this shaft is a series of type CllSkS 15, each in the form of a'toothed pinion with the type at the periphery of the teeth (in the draw ng'only one of these disks 15 is shown). Adjacent to the shaftl l is a secondshaft- 16, and loosely mounted on this shaft16 is a series of-toothed pinions 17 in mesh with the toothed pinionsof the corresponding type "disks'15. For each of the toothed pinions 17 there is a segmental rack 18 fulcrumed. in the frame 13 and in mesh with the corresponding pinions 17. These parts are all so arranged that when any segmentalrack 18 is moved the pinion 17 in mesh with it will be correspondingly moved, and the type disk 15 in mesh with the said pinion will be correspondingly moved to bring the selected type to printing position. Our improved type aligning device comprises a shaft 19 mounted in the frame 13, preferably above the row of toothed pinions 17. This shaft has at-one end a slot 20 to receive a screw driven and it also has through its body portion a series of slots 21 preferably formed in the top surface of the shaft 1 and extended transversely of "the shaft. The slots are spaced apart leaving the artit-ions 22 between them.

ounted in the frame 13 adjacent to the ends of the shaft 19 are set screws 23 by which the shaft may be locked in any position of'its'adjustment. v, The spring type aligning devices are each composed of a single piece of spring metal comprising a body portion 24, having at the outer end a curved tooth engaging member 25, and atthe other end the spring is formed into a nearly complete circle 26. [The end of 7 spring sh uld be om ro e as spring is separately applied tot-he shaft 19. The top portion of the part 24, as shown in Figure l, is placed against the round portion of the shaft 19 cdirectly beneath the slot 21, with the flattenedend27gof the spring substantially parallel with the bottom of tne slot. Then the spring is moved relative to the shaft until itscircular portion'26 is substantially concentric with the surface of the shaft, after which-the spring is turned approximately one-half revolution on the shaft until thejinwardly curved portion 28 of the spring lies within the outer surface of the corresponding slot 21, and when in this position, as clearly shown in Figure 3, the part 28 rests within the walls ofthe slotand-engagesthe sides or partitions 22.

Whenall of thesprings hav'ebeen thus applied, then the shaft 19 is turned bya screw Quiver; in the screw slot 20 until the proper tension of thesprings'is appliedto the toothed pinions' 1-7, whereupon theset screw 23 is'tightened to lock the shaft 19 in position, 'forapplying the proper spring ten- S1011. 'Obvi'ouslygin the event that'by'reason of wear or for other causes, the spring tension should'be either too great or too slight, the operator may quickly and easily readjust the tension of" the springs by first re leasing the set screw 23 and then turn the shaft--19 to apply the proper degree of tension, and then again, lock the shaft in'its'readjusted, position by means of ,the set screw Attention is called to the fa'ctfthat all of the parts'ofthis-aligning device-are of extremely simple and inexpensive construe-- tion and maybe readily, quickly and easily applied and'adjusted. v 1

Furthermora the curved portions 25 of the s'prings are always held directly in alignment with the central portions of the teeth of thepinions l7, by reasonof the fact that thefpoi'tion 28 of ear-2h spring is held against lateral movement by its engagement with the side walls of the slots. vents the free ends of the springs from moving laterally and possibly engaging other thanthe toothed pinions 17 for which each spring is designed, and for the reason {that these toothed pinions 17 work independently, this feature isof great advantage.

Another advantage 015 our v improvement is that-the's'prings are "whelly independent of;eacl1.otl1 fer, and. in the even i at any airliner apply the proper degree of ten ion to its 'e' PQnd ng' t othe pinion; i myib fl lnoved rea'diIyI aid' easily and bent-"to 1 proper This p'reposition, ora new one-may be substituted therefor, which, obviously, is not possible if the springs were all made of one piece of metal. Weshave found that-it -is,impractical-to form all of these springs of a single piece of metal and obtain the propertension of each spring with relation to its corre sp'onding'toothedpinion.

We claim as our invention: 1. A type aligning device for marking machines, comprising in combination a series of pinions'having type upon the periphery means foradjusting the tension of said spring arms. i

2. Atype aligning device for marking ma chines, comprising in combination a series of pinions having type upon the periphery of the teeth, a corresponding series ,of toothed pin'ions in mesh with tlie't-ype bearing pinions, a shaft rotatively mounted ad:

jface'nt to the toothed p'inions and formed with a series of slots extended 'transversely' and spaced apartfrom each other'and eX- tending from-the periphery of the shaft at one edgeto apoint approaching the center of the edge, means for locking the shaft against rotation, and a series of spring arms, each comprising a body portion, an outer end portion shapedto enter between two teeth of the corresponding toothed pinion, the other end of each spring arm being curved into a nearly complete circle with its end projected inwardly toward'therenter of the circle and being also formed wit-ha portion of this circle projected inwardlyloward the center of the circle, said parts be ing so arranged that when assembled the rounded portion of the circle will engage the rounded portion ofthe shaft opposite from the slot, the inwardly extended' end portion will engagejthe shaft at the bottom o'f-theslot and the inwardlyextended por tion of the circle 'will enter betwee the sides of 'the'slo't and the wa'llsbetween the slots, substantially as and fertile purpeses stated. 2

Des -h ioines ,lowa, October 6, 1.926.

a io Bo N "CHARLES "r. MILLER.

Images