US1946797A - Cementing machine - Google Patents

Description

Feb. 13, 1934. F D KiNNEY 1,946,797

CEMENTING MACHINE Filed Dec. 15, 1950 Patente-d Feb. 13, 1934 UNETE!) STATES PATENT QFFICE CEMENTING MACHINE Application December 13, 1930 Serial No. 502,173

Claims.

This invention relates to machines for applying to work-pieces coatings of such substances as cement, it being illustrated as embodied in apparatus or" the character disclosed in Letters s Patent of the United States No. 1,38),36l, Cosgrove, June 7, 1921.

In the machine described in the above-mentioned patent, opposite rolls respectively apply the coating of cement to one side of the work and hold said work to receive the coating. Some Work-pieces may have areas to be operated upon simultanenonsly which are or" different thick.- nesses, as the margins of tennis-shoe uppers having attached counter-pieces spaced inwardly from their edges, and Cosgrove has provided for the effective engagement of such Work with the applying roll by the provision of a sectional abutment-roll, a yieldable portion of which engages the thicker area, while a non-yieldable portion acts upon the thinner area.

When a work-engaging roll in a cementing machine is made in relatively movable sections, as above indicated, there may be a gathering of the cement upon such roll, with a tendency to interfere with the movement between the sections. This transfer of the adhesive from the applying roll to the associated roll may occur when relatively thin material is operated upon and the operator neglects to separate the rolls when there is no work between them; or, when the sectional roll is below, cement may drip from the upper applying roll. An important object of my invention is to facilitate the cleaning of the yieldable sectional roll in apparatus of the type illustrated in the previously-mentioned Letters Patent or in other cementing machines, so arranging the roll that little time and eifort upon the part of the operator will be required for its removal, treatment and return. With this pur- 4C, pose in view, I so arrange a rotatable support and a work-engaging roll, carried thereby and having relatively movable sections and yieldable means which permits such movement, that said means and the movable section are separable as a unit from the support and from the associated section. The movable section may be provided with means, such as a lateral extension or flange, which will operate to protect portions of the movable section other than its work-engaging periphery from becoming coated with drippings of cement. The elements which provide for the yield may be comparatively numerous, as positioning yokes contacting with a work-engaging ring and springs interposed between the yokes. With my unitary construction, these, and other (Cl. fil-67.8)

parts of the yeldable roll-section, may remain in their assembled relation during their removal from the machine, so the operator has, in eifect, but a single part to handle. As herein illustrated my improved roll is made up of a section fixed upon a rotatable shaft and a second section comprising a xed portion and a yieldable por: tion, there being supporting and positioning means for the yieldable portion which are inde: pendent of the wholly fixed section. More specically, the fixed elements may consist of inner and outer plates or disks, while between them is a yieldable work-engaging ring, there being studs, conveniently furnished by screws, which project from the outer plate only. Between these projections and the Work-engaging ring are inter.- posed the springs or other means which permit the yield of said ring. One of the sections is shown as having a hub surrounding the supporte ing shaft, and the other includes a plate situated at the end of the hub, the work-engaging portion of the second section being mounted upon said plate. Preferably, means, as a screw, is carried by the shaft to force the plate against the hub, thus securing the roll-sections in place.

One embodiment of the invention is illustrated in the accompanying drawing, in which Fig. l shows in broken side elevation those por`- tions of a cementing machine more directly involved in said invention;

Fig. 2 is an enlarged end elevation of the Worksupporting roll;

Fig. 3, a longitudinal section on the line III-III of Fig. 2;

Fig. 4, a partial end elevation, enlarged, looking from the left in Fig. l; and

Fig. 5, a broken perspective view of the worksupporting roll, the outer plate being removed.

Generally, the organization may be that of the previously-mentioned patent. To outline the more essential elements, a frame l0 has at its upper portion a receptacle 12 vdelivering cement, under control of a valve 14, to an upper applying roll A. This roll is fast upon the youter extremity of a shaft 16 journaled horizontally in the frame and rotated from a power-shaft 18 through gearing 20. Pivoted at 22 on the frame is an arm 24, and journaled longitudinally in the Varm is a shaft 26, which carries below the roll A .an abutmentor work-supporting roll B. The arm is raised into operating position by a treadlecontrolled lever 28, between which and the arm 24 is a spring 30, to allow the bodily yield o f the roll B from the roll A. A screw 32, threaded into the arm, determines, by its contact with `the frame,

the normal space between the rolls. Fixed to the shaft 16 is an elongated pinion 34 meshing with a pinion 36 upon the shaft 26, causing the rotation of the rolls A and B in opposite directions. A gage 38 is mounted upon the arm 24, determining, by contact of the edge of the work with it, the relation of said work to the rolls. A slotand-screw connection 40 allows the adjustment of the gage toward and from the rolls.

For operating upon work-areas presenting simultaneously different thicknesses to the rolls, as when there is to be cemented an upper U of a tennis-shoe carrying, spaced from its edge, a counter-piece C, the lower roll B has an inner non-yieldable or xed section 42 for contact with the thinner upper-margin and a yieldable section b for engagement with the plural thicknesses of the upper and counter-piece. The fixed section 42 is shown as a disk-shaped plate, which may aproximate in width at its periphery the extension of the upper beyond the counter-piece. It may abut against a shoulder 46 upon the shaft 26 and have a hub 48 surrounding the reduced end of said shaft. The section b includes a yieldable portion 44 which appears as substantially equal in width to the roll A, having at its periphery a flange 50, extending laterally from the ring-shaped body-portion. Outside the yieldable ring 44, encircled by the flange 50, is a diskshaped plate 52 furnishing a carrier-portion for the ring of the yieldable section b. The flange 50 besides furnishing part of the work-engaging surface of the yieldable portion 44 acts also to protect the plate 52 and parts associated therewith from drippings of cement from the applying roll A positioned above. A screw 54, threaded into the end of the shaft, forces the disk 52 against a narrow flange 56 upon the end of the hub 48 and removably secures or clamps the members 42 and 52 upon the shaft 26. The plate 52 is recessed to fit over the flange 56 so that it is centered thereby before the screw 54 is inserted. Spaced equidistantly about the inner face of the disk 52 are three horizontally projecting studs, furnished by shouldered screws 58. Cylindrical portions 60 of the screws separate the screwheads 62 sufficiently from the disk 52 to receive between them the thicker portion of the ring 44 and permit its movement radially of the shaft without binding, while it is held against separation from its plate 52. The screw-heads are accessible through openings 63 in the side wall of the roll-section 42, these openings being of greater diameter than said heads so that the latter will form no connection between the plate 52 and the roll section 42. When the section b is separated from the shaft, depressions 65 in the outer edge of the flange 56, spaced from one another similarly to the screw-heads, permit the passage of these heads by the flange. Each studportion 60 is straddled by a yoke 67, the ends 61 of the arms of which are forced against the inside of the ring-section by three interposed springs 64 seated at their ends in depressions in the yoke-arms, these springs, yokes, and screw heads providing means whereby the ring 44 is mechanically interconnected to the plate 52 independently of the fixed roll-section 42, thereby making the yieldable section b of the roll selfcontained. Normally, the springs hold the yokes out against the studs, and at this time the workengaging peripheries of the sections 42 and b are in registration, as appears in Figs. 1, 2, 3 and 5 of the drawing. When, in cementing an upper with au attached counter-piece, this piece is reached, the projecting edge of the upper, directed by the gage 38, travels wholly over the inner fixed section 42 of the roll B, and the thicker counter-piece, engaging only the yieldable portions of the section b forces this down. Therefore a substantially uniform pressure is exerted over the entire margin to be coated, to bring it into contact with the applying roll A. The roll B as a whole is held up to the work by the spring 30, the arm 24 yielding for circumferential variations in the thickness of the work, such as occur when seams are encountered.

If the operator wishes to clean the section b of the roll B or to take it from its shaft for any purpose, the screw 54 is removed, thus freeing not only this section, but the section 42. Then the complete yieldable assembly, including all its eleven elements illustrated, may be handled as though they were one piece, being immersed together in a solvent for the cement which is being used, or otherwise freed from the accumulated adhesive. The section 42 may also be taken olf for cleaning, and then both sections returned to the shaft and secured by the insertion of the screw 54. It will be seen that there is saved the time which would be consumed in taking apart and reassembling the elements of the yieldable section when separated from the supporting shaft and the associated fixed section, and possible loss of the separated parts is avoided.

Because, as just pointed out, the section 42 of the roll B should act always upon the portion of the upper outside the counter-piece and the section b upon said counter-piece, I have arranged, when the total width of the marginal coating is to be changed, to adjust the entire roll B transversely of the applying surface of the roll A. By moving the edge of the work to the same extent and in the same direction as the roll B, the desired relation of the areas of different thicknesses .i

to the roll-sections may be maintained. This last is provided for by an adjustment of the gage 38 to correspond to the roll-adjustment. To obtain this variation in the position of the roll B, the shaft 26 may be longitudinally adjusted in its bearing in the arm 24. At each extremity of the bar, the shaft carries a collar secured in place by a set-screw 72. The space between the roll B and the gear 36 is suflcient to give the desired range of movement of the roll, and the elongation of the gear 34 permits the corresponding shift of the gear 36 without the two getting out of mesh. For coating the widest margin, the rolls would be located as appears in Fig. 1 of the drawing, the inner edge of the applying roll A being vertically alined with the inner edge of the fixed section 42 of the roll B. At this time, the work-contacting face of the gage 38 is horizontally alined with the plane common to both inner roll-edges. To arrange for the applying of a narrower marginal coating, the screws 72 are loosened in both the collars 70, and the shaft 26 is slid in its bearing to the left, as viewed in Fig. 1, until the distance between the inner edge of the roll and the outer edge of the roll A is equal to the width of the desired area. Then the collars are xed in place by their set-screws against the opposite ends of the bearing, holding the roll in its adjusted position. At the same time, the gage 38 is moved across the face of 1 the roll A a distance corresponding to that through which the roll B was shifted. While the area operated upon is now of less width, it will be observed that the relation of the fixed section 42 of the roll B to the projecting edge si of the upper remains `precisely the' same' as before, so comparative uniformity 'of pressure over the entire area to be coated is attained for all widths. With such an arrangementVthe roll B, during the operation upon work, is always protected from the cement-appiyingi roll A by said work, which extends across the entireA contactsurface of the lower roll. Thistends to prevent the'daubing of said roll with cement, either by drip from the roll A or by the direct passage of the cement from one roll to the other when thin material is being operated upon.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a cementing machine, a rotatable support, a work-engaging roll carried by the support and having relatively movable sections, yieldable means arranged to permit movement between the sections, and a member removably secured to said support to which said yieldable means and one of the sections are movably attached, whereby said member, said yieldable means and a movable section of the roll are separable from the support and the associated section as a unit.

2. In a cementing machine, a rotatable support, a work-engaging roll having a section fixed against movement on the support and a second section having a yieldable work-engaging portion, said second section also having supporting and positioning means for the yieldable portion, means independent of the fixed section for mechanically interconnecting said supporting and positioning means to make the second section self-contained, and means for removably securing said second section to said rotatable support.

3. In a cementing machine, a rotatable shaft, a work-engaging roll carried by the shaft and comprising two sections, one of which has a yieldable portion, means for fixing one section and a portion of the second section to the shaft, and supporting and positioning means for the yieldable portion and forming a part of the sec* vond section, said supporting and positioning means being mounted independently of the fixed section.

4. In a cementing machine, a rotatable shaft, a roll carried by the shaft and comprising two work-engaging sections, one of which has a car- Iier-portion and a yieldable work-engaging portion movable upon the carrier-portion, projections from the carrier-portion provided with enlargements which are free from engagement with the associated section, and yieldable supporting means -for the workengaging portion interposed between said work-engaging portion and the projections, the enlargements on the projections holding the yieldable portion and supporting means against separation from the carrier portion, thereby permitting said portions and said supporting means to be removed from the shaft as a unit.

5. In a cementing machine, a rotatable shaft, a roll carried by the shaft and comprising two work-engaging sections, one of which has a carrier-portion and a yieldable work-engaging portion movable upon the carrier-portion, projections from the carrier-portion, and yieldable supporting means for the work-engaging portion interposed between said portion and the projections, the projections being provided with enlargements which engage the yieldable portion x and hold it to the carrier-portion, thereby forming a unitary construction which can be removed from the shaft as an assembled unit.

6. In a cementing machine, a rotatable shaft, a roll carried by the shaft and comprising two work-engaging sections, one of which has a hub surrounding the shaft and the other a plate situated at the Vend of the hub, a yieldable workengaging portion mounted wholly upon the plate, andmeans for securing the sections upon the shaft.

7. In a cementing machine, a rotatable shaft, a roll carried by the shaft and comprising two work-engaging sections, one of which has a hub surrounding the shaft and the other a plate situated at the end of the hub, a yieldable workengaging portion mounted wholly upon the plate, and means carried by the shaft and contacting with the plate to force it against the hub.

8. In a cementing machine, a rotatable shaft, inner and outer disks surrounding the shaft and spaced from each other, studs projecting from the outer disk only, a ring yieldably mounted upon the studs, the ring and inner disk furnishing work-engaging surfaces, and means for securing the disks upon the shaft.

9. In a cementing machine, a rotatable shaft, inner and outer disks surrounding the shaft and spaced from each other, studs projecting from the outer disk and provided at their ends with headed portions, a ring situated between the inner and outer disks and bearing against the studheads, and yieldable means interposed between the ring and studs, said outer disk, ring and yieldable means being separable from the inner disk as a unit.

10. In a cementing machine, a rotatable shaft,

inner and outer disks surrounding the shaft and spaced from each other, headed screws projecting from the outer disk, a ring situated between and contacting with the outer disk and the screw- L heads, and means for supporting said ring including springs interposed between the ring and the screws, said outer disk, ring and supporting means forming a unitary assembly which is separable from the inner disk as a single element.

11. In a cementing machine, a rotatable shaft, inner and outer disks surrounding the shaft and spaced from each other, headed screws projecting from the outer disk, a ring situated between and bearing against the outer disk and the screwheads, yokes straddling the screws and contact` ing with the ring, and springs interposed between the yokes, said screw heads acting to support the ring and the yokes against the outer disk, thereby permitting removal of these elements from the shaft as a complete assembly.

12. In a cementing machine, a rotatable shaft, inner and outer disks surrounding the shaft and spaced from each other, the inner disk being provided with a hub with which the outer disk f contacts to separate said disks, studs projecting from the outer disk only, a ring yieldably mounted upon the studs, the ring and inner disk furnishing work-engaging surfaces, and a screw threaded into the shaft and bearing against the outer disk.

13. In a cementing machine, a rotatable support, inner and outer disks carried by the support, and a ring yieldably carried by the outer disk and having at its periphery a lateral ange ex- 1:;

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which engage the adjacent surface of the ring to hold the ring against the disk and to form there- With a. unitary assembly independent of the support, said heads being spaced sufficiently from the inner surface of the disk to permit freedom of movement of the ring radially of the support and between the inner surfaces of the stud heads and the adjacent surface of the disk.

FAY D. KINNEY.

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