US537017A - John s - Google Patents

Description

I (No Model.) J. S. CAMERON.- GAGE FUR PLOURING ROLLS, &c.

f No. 537,017. PtyntedApr. 9, 1895.

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JOHN S. CAMERON, OF EVANSVILLE, INDIANA, ASSIGNOR OF ONE-HALF TO ADDISON IGLEHEAR'I, OF SAME PLACE.

GAGE FOR FLOURlNG-ROLLS, 80C.

SPECIFICATION forming part of Letters Application filed .Tuly 26, 1894. Serial No. 518,607.

To all whom it may concern: I l

Be it known that I, JOHN S. CAMERON, a citizen of the United States, residing at Evansville, in the county of Vanderburg and State of Indiana, have invented certain'new and useful Improvements in Gages for Flouring and other Rolls; and 'l do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the' art to which it appertains to to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention is directed to devices for gaging the relative positions of the rolls of roller mills, and has for its object the production of asimple but efcient gage for this purpose, which can be applied with equal facility to the under side or to the top of the rolls, and whether the latter are atrest or in motion, with aview to determining the degree of vertical adjustability requisite for paralleling the same.

The nature of my invention will become apparent from a reading of the snbjoined description when taken in connection with the accompanying drawings, which form a part of this specification, and in whichy Figure l is a plan View of my improved roll gage. Fig. 2 is a side elevation of the same. Fig. 3 is a vertical, central, sectional view. Fig. 4 is a front elevation showing the indicators in a different position. Fig. 5 is a view showing a pair of rolls with my improved gage applied to theuinder side thereof, and Fig. 6 is a similar View showing the gage applied to the upper side or top of said rolls.

Like letters of reference denote like parts in the several figures ofthe drawings.

Referring to the drawings by letter A denotes my improved gage, and B B. are the rolls which .latter are shown out of parallelism.

The gage consists essentially of two rods d a which are centrally reduced at a to give a clearance for the Scrapers which are employed in connection with smooth rolls, and which -rods are also recessed on their inner sides to reduce the weight and add rigidity. The surfaces indicated at a2 a2 are planed Patent No. 537,017, dated April 9, 1895. v

(No model.)

Vare each centrally -apertured at a3 d3, for con- 55 nection with a king bolt c which is provided with the reduced screw threaded ends c c for said apertures, nuts d d being employed to complete the connection. The rods are permitted to turn on said bolt, and for this 6o reason the bolt is provided with collars c2 c2 which abut against the inner sides of the rods, and the nuts are screwed up against the shoulders c3 formed by the reduced ends c', in order to prevent the binding of the rods between the collars and nuts. In practice these rods are brought against the peripheries ot' a pair of rolls, and by reason of the loose connection, the surfaces a2 all contact with said peripheries whether the rolls are in' 7o parallelism or not, as will be understood by reference to Figs. 5 and 6. The conformity of the rods with the relative position of the rolls is accomplished automatically, in that any pressure on the king bolt will causevthe rods, if the rolls are out of parallelism, to turn on said bolt until all four surfaces contact with the peripheries of the rolls.

Any means for manipulating the gage may be employed, but I prefer to use a handle e 8o which is arranged parallel with the rods and connected centrally to the king bolt by a Vertical postor arm e. The connection of the handle with the gage being exactly central of the latter, it is evident that the gage is very 8 5 sensitive, and that the slightest variation from parallelism of the rolls will be indicated, inasmuch as the movements or adjustability of the two rods will be simultaneous, one being depressed and the other raised un- 9o til the contact is made at the four points.

In order to adapt the gage for application to the upper side as well as the under side of the rolls, I provide an indicator which is capable of being secured to the rods in two positions, and which will show the degree of adjustment requisite for paralleling the rolls. Said'indicator consists of two arms f f, which are bent inward at one end, f', to span the ends of the rods, and bent outward at their roo other ends to form indicator fingers f2 f2 which are arranged parallel to each other and extend in a direction opposite to the bent ends f. ln the ends of each of the rods to which the indicator is secured are threaded perforations g, g', g2, which are located respectively in the side, end and top thereof, the side perforation g receiving a thumb-screw h which is first passed through a slot f3in the end f of one of the indicator arms, the connection of the other arm being made with the other rod in a similar manner. This connection forms a pivotal joint which enables the indicator to be turned and secured in alignment with the rods as shown in Fig. 5, or at right angles thereto as shown in Fig. 6. h' h are thumb screws which are passed through perforations f4f in the arms adjacent to the bent ends f', and screwed into the apertures g to secure the indicator in alignment with the rods, or into the apertures g2 to secure the indicator at right angles to said rods. The indicator fingers are loosely secured together by means of a bolttwhich is passed through a slot i in one of said lingers and screwed into an aperture i2 in the other finger, this connection permitting each linger to follow the movement of the rod to which it is rigidly connected. The connection of the indicator with the rods, which permits of their relative position being changed, is for the purpose of enabling the operator to apply the gage to the under side or to the upper side of the rolls, as conditions permit, or in order to verify the indications. The gage aside from this feature, may be applied to rolls when at rest, or in motion, preferably at the latter time, as I have found that there is always a perceptible difference in the relative positions of the rolls when idle as compared with the active periods.

In practicing my invention, the indicator is secured in the position required for the application, and the handle is brought against the periphery of the rolls, and slight upward or downward pressure as the case may be, being given the rods, are caused to adj ust themselves to the positions of the rolls, the positions, and consequently the degree of adjustment required, being shown by the indicators. This application of the gage may be made from above or below the rolls, it being preferred to make the double test in order to 5o prove the indication.

`The gage is as a whole very simple but yet eective. It is durable, light of weight, and may be cheaply produced and is very accurate in practice.

I claim as my invention- 1. A gage for the rolls of roller mills consisting of two rods loosely connected together, and adapted for contact at four points on said rolls, and an indicator adapted to be removably secured to said rods in different positions for the purpose set forth.

2. A gage for the rolls of roller mills consisting of two rods centrally connected but independently movable and adapted for contact at four points on said rolls, and an indicator consisting of two arms each pivotally connected toone end of each arm and adapted to be secured in dierent positions with ret'- erence to the rods, said arms being loosely connected together, all as and for the purposes set forth.

3. A gage for the rolls of roller mills consisting of two rods connected together centrally by a king bolt, but independently movable, the indicator consisting of the two arms having the bent portions and the indicator ngers, apertures in the arms and ends of the rods, and thumb screws for securing said rods and indicators in diderent relative positions, for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JNO. S. CAMERON.

Witnesses:

WILBUR ERsKINE, C. M. ToBrN.

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