US2191366A

US2191366A - Roll scraper

Info

Publication number: US2191366A
Application number: US185203A
Authority: US
Inventors: Buccicone Dario; Charles M Shank
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-01-15
Filing date: 1938-01-15
Publication date: 1940-02-20
Anticipated expiration: 1957-02-20

Description

F 20, 19 0. D. BUCCICOQE ET AL 2,191,366

ROLL SCRAPER Filed Jan. 15, 1938 FIG. 1.

[fiver/dais: 942/0 CC/CO/VE Md Patented Feb. 20, 1940 UNITED, STATES PATENT OFFICE} ROLL SCRAPER.

'Dario Buccicone and Igillaarles M. Shank, Gary,

Application-January '15, 1938, Serial No. 185,208 Claims. (01. 15-236) This invention relates to a roll scraper and, particularly, to an improved scraper for-use in cleaning the conductor rolls in electrolytic baths.

In applying a plating materiaL'such as tin,

5 to a continuous strip of metal it is the practice to pass the strip continuously through a suitable electrolytic solution. In order for the plating material to be deposited on the strip, the strip, of course, has to serve as the cathode while passing through the solution. There are usually provided two or more conductor rolls in the solution which are connected to negative bus ba'rs' outside the electroplating vat. These conductor rolls I support the metal strip being plated and, collectivelfwith the strip, form the cathode.

At times, tinning or plating material, or other foreign particles, become deposited'or lodged on the surface of the rolls which is very undesirable in that it prevents contact between the rolls and the strip and generally results'ina poor plating job. These rolls are usually kept free of the tinning or plating material by, means of scrapers, and it is to such a scraper that this invention relates.

I It is the general object of this invention to provide an improved scraper for use in cleaning such conductor rolls.

It is another object of the invention to provide a scraper which will, at all times, bear re- 80 siliently against the surface of the rolls, and at the same time 'sufliciently yield,- if necessary,

. without damaging the scraper or the apparatus with whichit is used.

Various'other objects and advantages of this,

85 invention will more fully appear during the course of the following specification and will be particularly pointed. out in the appended claims.

In the accompanying drawing, we have shown one embodiment which our invention may assume in practice.

In the drawing: Figure 1 is a front elevation of the improved scraper of this inventiomshowing it in position against a roll; 1 i

Figure 2 is an end view of Figure l; and, Figure 3 is an enlarged sectional view taken on the line III-III of Figure 1. I There is shown in the drawing a conductor roll 2 rotatably, mounted in suitable bearings 3. which are mounted preferably on the frame l of the tinning or plating apparatus.

A scraper 5, preferably made from stainless steel, is positioned next to the roll and extends substantially the length thereof, and has a sharp cutting edge 6. The scraper is preferably secured to a longitudinally extending flanged portion I of a split or slotted resilient tubular member 8, which is' also preferably made from stainless steel, by means of bolts 9. The tubular member 5 8 has a smaller longitudinally extending flanged portion Ill oppositely disposed from the flanged portion 1.

The tubular member 8- is preferably mounted so as toencircle a suitable round baror shaft-10 12, having a cross-sectional dimension relatively smaller than the inner cross-sectional dimension of the tubular member, and is secured thereto just below the smaller flanged portion l0, preferably by means of machine screws I 3.

Preferably, the ends of the round bar or shaft l2 have flat portions M, or other means for preventing the bar from turning, which are movably moun d in slots l5 of guide brackets l6, preferably mounted on the bearings 3, or other- 20 wise suitably mounted. There are secured to the ends of the bar I2 preferably stud bolts I! for supporting the bar, which are secured by means of the adjusting nuts 18 to the extending portions l9 carried by the brackets l6. 26

It will be understood that the tubular memher is inherently resilient in its cross-sectional direction, that is, in a plane perpendicular to the axis thereof, and this'resiliency keeps the scraper in yieldable ,contact with the roll at all times. The desired degree of resilient bearing I, force of the scraper upon the surface of the roll can be quickly and easily made by adjusting the nuts IS. The flanged portion l0 acts as a stop or an abutment for the portion 20 of the lower edge J of the flanged portion 1' in case the scraper is forced away from the roll and limits the outward movement thereof in case an excessive amdunt of foreign substances is deposited thereon. I

As a result of the invention, it will be seen 40 that there is provided a scraper that will forcefully' bear at all times against the surface of the roll, removing any tin or plating deposit, or other foreign materials deposited thereon, thereby keeping the roll continuously clean. 45

I While we have, in this application, specifically shown and describedone embodiment which our invention may assume in practice, it will be understood that this embodiment is merely for the purpose of illustration and description, and 50 that various forms may be devised within the scope of our invention, as defined by the appended claims.

We claim:

1. A scraper for scraping and cleaning the surface of rolls comprising a longitudinally extending split tubular member which is inherently resilient in a plane perpendicular to the axis thereof adapted to be arranged substantially parallel to the roll with which it is to be used with at least one of the edges of said slot terminating in a flanged portion, a' scraping blade mounted on said flanged portion. said scraping blade adapted to be maintained in yieldable contact with the surface of the roll, means for rigidly supporting said tubular member adjacent the opposite edge of said slot, and means for limiting the outward movement of said scraping blade away from said roll.

2. A scraper for scraping and cleaning the surface of rolls comprising a longitudinally extending split tubular member which is inherently resilient in a: plane perpendicular to the axis thereof adapted to be arranged substantially parallel to the roll with which it is to be used with the opposed edges of the slot therein terminating. in outwardly extending flanged portions, a

. scraping blade mounted on .one of said flanged portions; said blade adapted to be maintained in yieldable contact with the surface of the roll, the other flanged portion being adapted to act as a stop against which said opposed flanged portion is adapted to abut to limit the outward movement of said scraping blade away from the: roll, and means for supporting said tubular member.

3. A scraper for scraping and cleaning the surface of rolls comprising a bar adapted to be arranged substantially parallel to the roll with which it to be used,a longitudinally extending split tubular member which is inherently resilient in a plane perpendicular-to the axis thereof'arranged around said bar and securely attached thereto adjacent one of the edges of the slot therein, and a scraping blade mounted on said member adjacent the opposite edge of said slot,

said scraping blade adapted to be maintained in yieldable contact with the surface of the roll.

.4. A scraper for scraping and cleaning the surface of rolls comprising a bar adapted to be movably arranged substantially parallel to the roll with which the scraper is to be used, a longitudinally extending split tubular member which is inherently resilient in a plane perpendicular to the axis thereof arranged around said bar and i with at least one of the opposed edges of the slot therein terminating in an outwardly extending flanged portion, said tubular member being securely attached to the bar adjacent said flanged portion, a scraping blade mounted on said member adjacent the opposite edge of said sl said scraping blade adapted to be maintained n yieldable' contact with the surface of the roll, said flanged portion being adapted to act as a stop for limiting the outward movement or the scraping bladeaway from'the roll.

5. A scraper for scraping and cleaning the surface of rolls comprising a longitudinally extending split tubular member which is adapted to be arranged substantially parallel to the roll with which it is to. be used, said splittubular member being of resilient material, whereby the