GB2182364A - Faller bars - Google Patents

Abstract

This invention relates to faller bars for combing textile fibres. A faller bar 10 in accordance with the invention comprises a comb 16 of pins 20 retained in a block 18, the block 18 being a slidable fit in, and retained by a channel in the faller bar 10. A faller bar of this type facilitates the repair or replacement of damaged pins. The comb 16 is retained in the faller bar 10 such as by means of a grub screw. <IMAGE>

Description

SPECIFICATION Faller bar This invention relates to faller bars and in particular to a faller bar pin comb.

Gilling, that is the combing of textile fibres on the worsted system during top making, is carried out by means of faller bars carrying sets of pins in a comb like arrangement being drawn through the fibres. In, for example, chain gill boxes, faller bars are driven by a chain arrangement and the construction of the faller bars makes their repair extremely difficult.

Damage to faller bars invariably affects the comb, with one or more teeth being broken out. Faller bars have conventionally been repaired by soldering.

The old or broken pins were stripped out of the faller bar and new pins are retained in place by means of solder. This is disadvantageous for a number of reasons. Firstly, solder is heavy and adds to the weight of the faller bar and therefore the inertia of the driven parts. Secondly the faller bars have to be thoroughly cleaned after soldering in order to prevent rusting which is an ever present problem when pins are soldered in. Finally, and most importantly, the soldering process is expensive since it is slow, labour intensive, and requires a high degree of skill in order to be carried out properly.

The invention seeks to provide a comb arrangement of faller barts which facilitates the repair or replacement of broken pins.

According to the present invention there is provided a faller barforthe combing of textile fibres which comprises a comb of pins retained in a block the block being a slidable fit in and retained by, a channel in the faller bar. Thus, in the construction of the invention, the comb of pins is comprised of a separate block which is slidable into position on the faller bar and, required to be replaced, may equally easily be slid out. A retaining mechanism, for example a grub screw, may be employed to hold the block securely in place during operation of the faller bar. By this means, any fuller bar with broken pins can have its comb removed quickly and easily and replaced by a fresh comb. The old comb may be repaired but it is generally more economical merely to throw it away.

The block into which the faller pins are set will be an elongate bar preferably of a metallic material such as brass or steel but possibly of a rigid plastics material. Otherthan having a channel arrangement for receiving and retaining the block of the comb the remainder of the faller bar will be of conventional construction in accordance with the exact form of machinery with which it is to operate.

The invention will be described, by way of example, with reference to the accompanying drawings in which: Figure 1 is a partial side elevational view of a faller bar constructed in accordance with the invention; Figure 2 is an end view corresponding to figure 1; and Figure 3 is a similar end view to figure 2 of another configuration.

Referring to the drawings, a faller bar generally designated 10 comprises a support bar 12 attached to the gilling machinery in the conventional manner surrounded by a channel 14. The channel is shaped to receive as a slidable fit, and to retain, a comb 16 comprising a block 18 within which are set faller pins 20. In figure 1 the comb is shown partially emerging from the end of the channel but it will be appreciated, in practice, the comb 16 will be completely in register with the faller bar 10. In this position it will be retained by suitable retaining means, for example a grub screw through the top of the channel engaging with the block 18.

Should one or more ofthefaller pins 20 be broken or damaged the faller bar is lifted from the machine, the grub screw or other retaining means loosened, and the comb 16 slid out from the channel 14. A fresh comb 16 is then inserted and the faller bar put back into operation. As discussed previously it is probably more economical for the damaged comb 16 merely to be disposed of but of course it may be repaired if required.

The apparatus of the invention provides a simple and economical solution to the probiem of the repair of faller bars involving the least disruption to production.

1. Afaller barforthe combing oftextilefibres comprising a comb of pins retained in a block, the block being a slidablefit in, and retained by a channel in the faller bar.

2. A faller bar according to claim 1 which has a retaining device to hold the block securely in position during operation ofsaidfallerbar.

3. Afaller bar according to either of claims 1 or 2 wherein the retaining device is a grub screw.

4. Afaller bar according to any of the preceding claims in which the block is an elongate bar.

5. Afaller bar substantially as herein described with reference to the accompanying drawings.

6. Afaller bar according to claim 1 and substantially as herein described.

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

Claims (6)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Faller bar This invention relates to faller bars and in particular to a faller bar pin comb. Gilling, that is the combing of textile fibres on the worsted system during top making, is carried out by means of faller bars carrying sets of pins in a comb like arrangement being drawn through the fibres. In, for example, chain gill boxes, faller bars are driven by a chain arrangement and the construction of the faller bars makes their repair extremely difficult. Damage to faller bars invariably affects the comb, with one or more teeth being broken out. Faller bars have conventionally been repaired by soldering. The old or broken pins were stripped out of the faller bar and new pins are retained in place by means of solder. This is disadvantageous for a number of reasons. Firstly, solder is heavy and adds to the weight of the faller bar and therefore the inertia of the driven parts. Secondly the faller bars have to be thoroughly cleaned after soldering in order to prevent rusting which is an ever present problem when pins are soldered in. Finally, and most importantly, the soldering process is expensive since it is slow, labour intensive, and requires a high degree of skill in order to be carried out properly. The invention seeks to provide a comb arrangement of faller barts which facilitates the repair or replacement of broken pins. According to the present invention there is provided a faller barforthe combing of textile fibres which comprises a comb of pins retained in a block the block being a slidable fit in and retained by, a channel in the faller bar. Thus, in the construction of the invention, the comb of pins is comprised of a separate block which is slidable into position on the faller bar and, required to be replaced, may equally easily be slid out. A retaining mechanism, for example a grub screw, may be employed to hold the block securely in place during operation of the faller bar. By this means, any fuller bar with broken pins can have its comb removed quickly and easily and replaced by a fresh comb. The old comb may be repaired but it is generally more economical merely to throw it away. The block into which the faller pins are set will be an elongate bar preferably of a metallic material such as brass or steel but possibly of a rigid plastics material. Otherthan having a channel arrangement for receiving and retaining the block of the comb the remainder of the faller bar will be of conventional construction in accordance with the exact form of machinery with which it is to operate. The invention will be described, by way of example, with reference to the accompanying drawings in which: Figure 1 is a partial side elevational view of a faller bar constructed in accordance with the invention; Figure 2 is an end view corresponding to figure 1; and Figure 3 is a similar end view to figure 2 of another configuration. Referring to the drawings, a faller bar generally designated 10 comprises a support bar 12 attached to the gilling machinery in the conventional manner surrounded by a channel 14. The channel is shaped to receive as a slidable fit, and to retain, a comb 16 comprising a block 18 within which are set faller pins 20. In figure 1 the comb is shown partially emerging from the end of the channel but it will be appreciated, in practice, the comb 16 will be completely in register with the faller bar 10. In this position it will be retained by suitable retaining means, for example a grub screw through the top of the channel engaging with the block 18. Should one or more ofthefaller pins 20 be broken or damaged the faller bar is lifted from the machine, the grub screw or other retaining means loosened, and the comb 16 slid out from the channel 14. A fresh comb 16 is then inserted and the faller bar put back into operation. As discussed previously it is probably more economical for the damaged comb 16 merely to be disposed of but of course it may be repaired if required. The apparatus of the invention provides a simple and economical solution to the probiem of the repair of faller bars involving the least disruption to production. CLAIMS

1. Afaller barforthe combing oftextilefibres comprising a comb of pins retained in a block, the block being a slidablefit in, and retained by a channel in the faller bar.

2. A faller bar according to claim 1 which has a retaining device to hold the block securely in position during operation ofsaidfallerbar.

3. Afaller bar according to either of claims 1 or 2 wherein the retaining device is a grub screw.

4. Afaller bar according to any of the preceding claims in which the block is an elongate bar.

5. Afaller bar substantially as herein described with reference to the accompanying drawings.

6. Afaller bar according to claim 1 and substantially as herein described.