GB2036924A - Batching Beam - Google Patents

Abstract

A batching beam for batching long runs of material comprises a pipe-like core 1 whose ends are sealed by journals 14, 14' to form a closed hollow space into which compressed air can be injected through a line 17 having a non-return valve 16. Surrounding the core is a rubber tube 2 which is vulcanized to the core in places other than zones 20, 21, 22 which communicate with the hollow space 18 of the core through radial bores 6, 7, 8. The compressed air causes the parts of the rubber tube 2 in the zones 20, 21, 22 to expand into contact with a roll 12 which is to receive the material 13 so as to hold it against torsional stress as the batching beam rotates or brakes. <IMAGE>

Description

SPECIFICATION Batching Beam The invention relates to a beam for batching long runs of material.

Long runs of material, such as paper, textiles or plastic sheeting, are wound on to cardboard, plastic or metal rolls, the rolls being pushed on to the beam before, and removed after batching.

During this operation the roll must be secured against slippage about the beam so as to withstand the high torsional forces resulting from rotation and braking.

In accordance with the invention there is provided a batching beam having a pipe-like core defining a hollow space whose ends are hermetically sealed, and means of supplying air to the interior of the pipe, the outer surface of the core being provided with radial bores communicating with the interior of the pipe, and a tube of elastic material fitted to the outer surface of the core and connected to it in places other than over at least one zone extending the length of a line connecting the radial bores.

Where compressed air flows from the hollow centre of the core through the radial bores, the portion of the tube not connected to the core expands thereby pressing the tube against the inside of the roll and securing it against torsional stress on the batching beam. The design is relatively simple since a generally cylindrical core (which is easy to manufacture) is used.

The radial bores in the core and the zones in which the outer surface of the core and the tube are not connected to one another can extend the length of surface lines evenly distributed over the circumference of the pipe.

Furthermore, the radial bores and the zones in which the outer surface of the core and the tube are not connected to one another may be located at intervals on circumferential lines or extend the length of a helical line on the outer surface of the core.

The invention may be performed in various ways and one preferred embodiment thereof will now be described in detail with reference to the accompanying drawings, in which: Figure 1 is a sectional view along the centre line of a batching beam assembly including a roll and a batched fabric; Figure 2 is a sectional view along the centre line of a section of the batching beam; and Figure 3 is a cross-section of line A-A of Figure 2.

Figure 1 shows a batching beam assembly with a cardboard roll 12 pushed over it, the roll carrying a batch of woven fabric 13. Forced into the ends of a pipe-like core 1 of the assembly and welded to the ends of the core are steel ournals 14, 14'. The steel journal 1 4 is provided with a non-return valve 16 and a line 1 7 for supplying compressed air to the hollow space 1 8 remaining within the core, this space being hermetically sealed at both ends by the journals 14. A rubber tube 2 is connected to the core 1 by partial vulcanization. Two tapered steel sleeves 15, 15' are pressed on to the core to protect The ends of the rubber tube 2, thereby facilitating the location and removal of the roll 12.

The core 1 shows the location of radial bores 6, 7, 8.along three evenly angularly distributed surface lines on its circumference as illustrated by Figures 2 and 3. The rubber tube 2 is not vulcanized to the core 1 in the zones 20, 21, 22 extending the length of said surface lines.

Compressed air introduced into the hollow space 18 flows through the radial bores 6, 7, 8 and presses the rubber tube, in the zones 20, 21, 22 against the inner wall of the cardboard roll 12so that it is secured against rotation about the batching beam. The roll can be released and removed by the discharge of air.

Claims

1. A batching beam having a pipe-like core defining a hollow space whose ends are hermetically sealed, and means of supplying air to the interior of the pipe, the outer surface of the core being provided with radial bores communicating with the interior of the pipe, and a tube of elastic material fitted to the outer surface of the core and connected to it in places other than over at least one zone extending the length of a line connecting the radial bores.

2. A batching beam according to Claim 1, wherein the radial bores in the core and the or each zone in which the outer surface of the core and the tube are not connected to one another, extend the length of surface lines evenly distributed over the circumference of the pipe.

3. A batching beam according to Claim 1, wherein the radial bores in the core and the zones in which the outer surface of the core and the tube are not connected to one another are located at intervals on circumferential lines along the outer surface of the core.

4. A batching beam according to Claim 1, wherein the radial bores in the core and the zones in which the outer surfaces of the core and the tube are not connected to one another extend the length of a helical line on the outer surface of the core.

5. A batching beam substantially as herein described with reference to the accompanying drawings.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Batching Beam The invention relates to a beam for batching long runs of material. Long runs of material, such as paper, textiles or plastic sheeting, are wound on to cardboard, plastic or metal rolls, the rolls being pushed on to the beam before, and removed after batching. During this operation the roll must be secured against slippage about the beam so as to withstand the high torsional forces resulting from rotation and braking. In accordance with the invention there is provided a batching beam having a pipe-like core defining a hollow space whose ends are hermetically sealed, and means of supplying air to the interior of the pipe, the outer surface of the core being provided with radial bores communicating with the interior of the pipe, and a tube of elastic material fitted to the outer surface of the core and connected to it in places other than over at least one zone extending the length of a line connecting the radial bores. Where compressed air flows from the hollow centre of the core through the radial bores, the portion of the tube not connected to the core expands thereby pressing the tube against the inside of the roll and securing it against torsional stress on the batching beam. The design is relatively simple since a generally cylindrical core (which is easy to manufacture) is used. The radial bores in the core and the zones in which the outer surface of the core and the tube are not connected to one another can extend the length of surface lines evenly distributed over the circumference of the pipe. Furthermore, the radial bores and the zones in which the outer surface of the core and the tube are not connected to one another may be located at intervals on circumferential lines or extend the length of a helical line on the outer surface of the core. The invention may be performed in various ways and one preferred embodiment thereof will now be described in detail with reference to the accompanying drawings, in which: Figure 1 is a sectional view along the centre line of a batching beam assembly including a roll and a batched fabric; Figure 2 is a sectional view along the centre line of a section of the batching beam; and Figure 3 is a cross-section of line A-A of Figure 2. Figure 1 shows a batching beam assembly with a cardboard roll 12 pushed over it, the roll carrying a batch of woven fabric 13. Forced into the ends of a pipe-like core 1 of the assembly and welded to the ends of the core are steel ournals 14, 14'. The steel journal 1 4 is provided with a non-return valve 16 and a line 1 7 for supplying compressed air to the hollow space 1 8 remaining within the core, this space being hermetically sealed at both ends by the journals 14. A rubber tube 2 is connected to the core 1 by partial vulcanization. Two tapered steel sleeves 15, 15' are pressed on to the core to protect The ends of the rubber tube 2, thereby facilitating the location and removal of the roll 12. The core 1 shows the location of radial bores 6, 7, 8.along three evenly angularly distributed surface lines on its circumference as illustrated by Figures 2 and 3. The rubber tube 2 is not vulcanized to the core 1 in the zones 20, 21, 22 extending the length of said surface lines. Compressed air introduced into the hollow space 18 flows through the radial bores 6, 7, 8 and presses the rubber tube, in the zones 20, 21, 22 against the inner wall of the cardboard roll 12so that it is secured against rotation about the batching beam. The roll can be released and removed by the discharge of air. Claims

1. A batching beam having a pipe-like core defining a hollow space whose ends are hermetically sealed, and means of supplying air to the interior of the pipe, the outer surface of the core being provided with radial bores communicating with the interior of the pipe, and a tube of elastic material fitted to the outer surface of the core and connected to it in places other than over at least one zone extending the length of a line connecting the radial bores.

2. A batching beam according to Claim 1, wherein the radial bores in the core and the or each zone in which the outer surface of the core and the tube are not connected to one another, extend the length of surface lines evenly distributed over the circumference of the pipe.

3. A batching beam according to Claim 1, wherein the radial bores in the core and the zones in which the outer surface of the core and the tube are not connected to one another are located at intervals on circumferential lines along the outer surface of the core.

4. A batching beam according to Claim 1, wherein the radial bores in the core and the zones in which the outer surfaces of the core and the tube are not connected to one another extend the length of a helical line on the outer surface of the core.

5. A batching beam substantially as herein described with reference to the accompanying drawings.