US521976A - Dor am enbe - Google Patents

Description

s Sheets-Sheet 1.

(No Model.)

0. W. T. AM ENDE I v THICKNESS GAGE FDR PAPER MAKING MACHINES- E jPaJtented June 26, 1894.

WZZ WJZJ.

(N0 Model.) 3 Sheets-Sheet 2.

0. W. T. AM ENDE. THICKNESS GAGE FOR PAPER-MAKING MACHINES.

Patnted June 26 3, 1894.

(No Model.) s sheets-sheet 3. 0. W. T. AM ENDE. THICKNESS GAGHFOR'PAPER MAKING MACHINES. No. 521,976.

Patented June 26, 1894.

W'iin $536.5.

WASHINGTON a c TAT S ,NIT ED I THICKNESS-GAGETFOR PARERQMAK'ING MACHINES.

SPECIFICATION forming part of Letters Patent No.521,976, dated June 26, 1 894. Application filed November 10, 1893. Serial No. 490,591. (No modeLl Patented in Belgium May 24, 1893, No. 104,801.

To all whom it may concern.-

Be it known that I, Orro WILHELM Tnno- I have obtained Letters Patent in Belgium,-

No. 104,801, dated May 24, 1893,) of which the following is a specification.

My invention relates to apparatus for measuring the thickness of paper or pulp in a paper making machine, as I shall describe referring to the accompanying drawings.

Figure 1 represents a plan partly in section. Fig. 2 is a side view. Fig. 3 is a section on the line M N of Fig. 1. Fig. 4' is a part end elevation. Fig. 5 is a section on the line P of Fig. 1. Fig. 6 shows the arrangement of the whole apparatus on a paper making machine, and its position relatively to the measurement cylinder.

The apparatus consists chiefly of a rectangular box, fitted, first, with a slide A, which by means of a micrometer screw can be moved outward or inward; second, with the divisions on the slide made to an enlarged scale for reading the thickness of the article to be measured; third, with one insulated metal wire a 'in the slide; fourth, with a roller B suspended from arms 0 to the box by two lever arms D, the lower parts of which are connectedby the plate E.

The apparatus, which is to be made of metal, is connected by the insulated metal wire a with an electric battery and bell, in any suitable position, while a second wire leading to the electric bell is fastened directly to the ap-' paratus; the bell is actuated at any desired moment determined by the apparatus, apprising the. workmen, that the prescribed thickness of the pulp or thev paper has been reached.

The apparatus is so constructed as to measure thickness down to eleven millimeters and that it admits of being set to a degree of accuracy equal to one-eighth of a millimeter. If finer measurements should be required, the

length of the lever arm to the axis of the roller B is lessened, or a longer lever arm D may be used. The scale on the slide will in such case be proportionally increased. The

bell to ring.

slideA by means of its springs bearing against the ends of the bolts 0 is so far pushed out, that the points of both the indicatorse stand at zero on both scales. The slide'A can be drawn horizontally intothe box by meanslof the micrometer screw 9 working in the bar 71., which bears against stops 7; on bothsides of the slide, the apparatus being thus set to any desired measurement. The true movement of the slide is insured by the angle iron guides f. Both the lever arms'D and along with them the lower connecting plate E are connected with the slide A by springs k and pins Z passing through a vertical slot of the springs, the arrangement being such, that the front face of the connecting plate E is kept away from contact with the point of the insulated wire a a distance of two to three millimeters by'means of the springs it, but on a slight pressure against the roller B the plate E is brought in contact with the point of the wire 0. thus closinga circuit and causing the The roller B will be acted on only when the pulp or the paper approximately reaches the desired thickness. insulated wire a is held fast inits position by the screw m. The elasticity of the springs in is such, that they will yield on the slightest pressure against the roller B allowing of contact of the connecting plate E with the wire a, without the slide A. being itself pushed back into the box.

In graduating the slide A regard is to be had to the movement of the roller B in a circular path and to the variation of leverage at which the connecting plate E touches the point of the wire a. In the apparatus shown a movement of the roller through ten milli- The meters corresponds to a length of thirty-nine roller touches the pulp cylinder in the horizontal line passing through the center of the cylinder, the connecting plateE also touching the wire a, with the slide set to zero. In this position the electric signal would be heard, but then the slide is to .be moved back by the micrometer screw, until the indicator IOO a points to the required thickness for the pulp or paper.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is- 1. A gage for paper making machine comprising the frame, the graduated slide A movable therein, thesprings for forcing the slide forward, the adjusting screw for retracting the slide against the spring pressure, the arms D pivoted to the frame and depending from their pivotal points and having the cross bar E at their lower ends opposite the front end of the slide, the roller carried by the said arms to bear on the pulp cylinder to move thedecarried by the gradnated slide and the springs 70 interposed between the lower ends of the pivoted frame and the graduated slide, substantially as described.

toward the graduated 1 described.

two subscribing witnesses. pending arms pivotally, the electric contact 2. A gage for paper making machines comprising the adjustable graduated slide carrying a contact point, the means for adjusting the slide, the frame in which theslide is movable, the arms D pivoted in said frame and I depending from their pivotal points, the cross bar E at the lower ends of said arms opposite the end of-the graduated slide and the contact carried thereby and the roller carried by the depending arms to bear on the pulp cylinder to move the pivoted depending arms slide, substantially as In testimony whereof I have signed my name to this specification in the presence. of

orre wiLnEtM mom AM My.

Witnesses:

OTTO FRANK, G. HI'JLsMANN.

Images