GB2140464A - Inclined plane spinning machine - Google Patents

Abstract

A spinning machine of the spinning male type upon which fibre is twisted into yarn I by rotating spindles G after having been attenuated (drafted) by a carriage B reciprocating over a plane A has the plane arranged inclined. The descent of the carriage (the drafting stroke) is by gravity against the control of a counterweight C. The ascent of the carriage is powered by the yarn produced on the descent being wound upon the rotating spindles and drawing the carriage up the inclined plane for a repeat of the cycle. <IMAGE>

Description

SPECIFICATION Inclined plane spinning machine for natural or synthetic textile fibres This invention refers to the use of an INCLINED PLANE as a track or guide over which a carriage containing delivery rollers, drafting rollers or spindles may run during the process of drafting and/or twisting either natural or synthetic fibres into a textile yarn.

The invention consists of two distinct details.

1) The use of an INCLINED PLANE.

2) The use of the YARN SPUN AS A MEANS OF TRANSMITTING MOTIVE POWER during part of the spinning cycle.

Detail 1.

This invention is a development of the principle embodied in the Spinning Jenny invented by James Hargreaves in the 1760s and the Spinning Mule invented by Richard Crompton in the 1770s and later developed into the self acting mule.

In both these inventions a carriage containing either a drafting mechanism (Hargreaves Spinning Jenny) or spindles (Cromptons Mule) reciprocated along a horizontal track. In both instances the floor space required for the machine is dependent upon the width of the machine and the length of the carriage track.

This invention relates to the replacement of the horizontal track by an INCLINED PLANE (A). The carriage (B) containing either the drafting mechanism, delivery rollers or spindles falling by gravity against the resistance of a counterweight (C).

Fixed to one side of the INCLINED PLANE is a toothed rack (D) which engages the teeth of a pinion (E) attached to the carriage (B). The pinion (E) drives either drafting or delivery rollers (F) through a pawl and ratchet so that rotation of the driven mechanism takes place only as the carriage falls for a duration dependent upon the length of the rack.

Yarn is manufactured from fibrous material delivered to spindles (G) by rotatation of the delivery or drafting rollers (F) as the carriage (B) descends that portion of the INCLINED PLANE to which the rack (D) is fixed.

Once the end of the rack (D) is reached the pinion ceases to revolve and the drafting or delivery of fibrous material to the spindles (G) stops. The carriage (B) continues to descend and draws the fibrous material out into a uniform thread against the resistance of twist inserted by the rotation of the spindles (G).

At a point determined by the weight of the carriage (B) and the amount of twist inserted in the fibrous material the endwise extension (drafting) of the material ceases and the carriage (B) comes to rest.

The counterweight (C) for the carriage (B) is adjustable so that the rate of the carriage fall may be controlled to suit the nature of the fibrous material being spun or the pertaining climatic conditions.

Detail2. Ascent of the carriage In all previous machines using a reciprocating carriage containing either delivery rollers, drafting rollers or spindles, the return of the carriage-to the starting position of the spinning cycle has occurred either through the agency of mechanically operated gears and pulleys or by being pushed directly by hand.

Mechanisms for the carriage return have beenvaried and complicated in an endeavour to maintain a constant tension on the yarn which, if relaxed, might cause the yarn to snarl or tangle.

The use of an INCLINED PLANE however ensures that the yarn is under an adjustable but constant tension provided by the difference in the weight of the carraige (B) and its counterweight (C).

The method of hauling the carriage (B) to the top of the INCLINED PLANE (A) for the start of successive spinning cycles is to draw it up by the united strength of the individual yarns spun (I) as the carriage descended, by causing them to be wound upon the spindles (G).

Mechanism for forming s suitable yarn package upon the spindles.

Use is made of the rise and fall of the carriage (B) to operate a mechanism to guide the spun yarn onto the individual spindles. The counterweight (C) is attached to the carriage (B) by Bowden Wire cables (J) which pass over pulleys (K) at the top of the machine.

One pulley drives a gear train via a pawl and ratchet so that the gear train is engaged only on the up stroke of the carriage (B). The gear train causes the yarn to be distributed over the surface of the spindle (G) by means of a guide bar (H). The gear train disengages automatically towards the end of the upward movement of the carriage allowing the yarn to return to the tip of the spindle for commence mentofthe next spinning cycle.

The machine may be operated manually or by the application of power.

The main advantages of the use of an INCLINED PLANE are : 1) Considerable reduction in the floor space required to contain the machine.

2) Considerable reduction in the energy required to drive the reciprocating carriage.

3) Simplification of the mechanisms needed to operate the successive sequences of the spinning cycle.

4) Greater ease and comfort of the operator.

1. A spinning machine which produces uniform yarn by spindle drafting fibre presented to the spindles through the agency of a carriage containing the fibre delivery rollers reciprocating over an inclined plane. The descent of the carriage is by gravity against the control of a counterweight. Fibre delivery ceases after a predetermined point after which the continued descent of the carraige attenuates (drafts) the fibre into uniform density.

2. A spinning machine as in Claim 1. incorporating a carriage which reciprocates over an inclined plane forming yarn on its descent and which is

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

Claims (2)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Inclined plane spinning machine for natural or synthetic textile fibres This invention refers to the use of an INCLINED PLANE as a track or guide over which a carriage containing delivery rollers, drafting rollers or spindles may run during the process of drafting and/or twisting either natural or synthetic fibres into a textile yarn. The invention consists of two distinct details. 1) The use of an INCLINED PLANE. 2) The use of the YARN SPUN AS A MEANS OF TRANSMITTING MOTIVE POWER during part of the spinning cycle. Detail 1. This invention is a development of the principle embodied in the Spinning Jenny invented by James Hargreaves in the 1760s and the Spinning Mule invented by Richard Crompton in the 1770s and later developed into the self acting mule. In both these inventions a carriage containing either a drafting mechanism (Hargreaves Spinning Jenny) or spindles (Cromptons Mule) reciprocated along a horizontal track. In both instances the floor space required for the machine is dependent upon the width of the machine and the length of the carriage track. This invention relates to the replacement of the horizontal track by an INCLINED PLANE (A). The carriage (B) containing either the drafting mechanism, delivery rollers or spindles falling by gravity against the resistance of a counterweight (C). Fixed to one side of the INCLINED PLANE is a toothed rack (D) which engages the teeth of a pinion (E) attached to the carriage (B). The pinion (E) drives either drafting or delivery rollers (F) through a pawl and ratchet so that rotation of the driven mechanism takes place only as the carriage falls for a duration dependent upon the length of the rack. Yarn is manufactured from fibrous material delivered to spindles (G) by rotatation of the delivery or drafting rollers (F) as the carriage (B) descends that portion of the INCLINED PLANE to which the rack (D) is fixed. Once the end of the rack (D) is reached the pinion ceases to revolve and the drafting or delivery of fibrous material to the spindles (G) stops. The carriage (B) continues to descend and draws the fibrous material out into a uniform thread against the resistance of twist inserted by the rotation of the spindles (G). At a point determined by the weight of the carriage (B) and the amount of twist inserted in the fibrous material the endwise extension (drafting) of the material ceases and the carriage (B) comes to rest. The counterweight (C) for the carriage (B) is adjustable so that the rate of the carriage fall may be controlled to suit the nature of the fibrous material being spun or the pertaining climatic conditions. Detail2. Ascent of the carriage In all previous machines using a reciprocating carriage containing either delivery rollers, drafting rollers or spindles, the return of the carriage-to the starting position of the spinning cycle has occurred either through the agency of mechanically operated gears and pulleys or by being pushed directly by hand. Mechanisms for the carriage return have beenvaried and complicated in an endeavour to maintain a constant tension on the yarn which, if relaxed, might cause the yarn to snarl or tangle. The use of an INCLINED PLANE however ensures that the yarn is under an adjustable but constant tension provided by the difference in the weight of the carraige (B) and its counterweight (C). The method of hauling the carriage (B) to the top of the INCLINED PLANE (A) for the start of successive spinning cycles is to draw it up by the united strength of the individual yarns spun (I) as the carriage descended, by causing them to be wound upon the spindles (G). Mechanism for forming s suitable yarn package upon the spindles. Use is made of the rise and fall of the carriage (B) to operate a mechanism to guide the spun yarn onto the individual spindles. The counterweight (C) is attached to the carriage (B) by Bowden Wire cables (J) which pass over pulleys (K) at the top of the machine. One pulley drives a gear train via a pawl and ratchet so that the gear train is engaged only on the up stroke of the carriage (B). The gear train causes the yarn to be distributed over the surface of the spindle (G) by means of a guide bar (H). The gear train disengages automatically towards the end of the upward movement of the carriage allowing the yarn to return to the tip of the spindle for commence mentofthe next spinning cycle. The machine may be operated manually or by the application of power. The main advantages of the use of an INCLINED PLANE are :

1) Considerable reduction in the floor space required to contain the machine.

2. A spinning machine as in Claim 1. incorporating a carriage which reciprocates over an inclined plane forming yarn on its descent and which is returned to the starting position at the top of the inclined plane by the yarn it produced being wound on to the rotating spindles. Thus the yarn itself transmits motive power fro the spindles to the carriage, causing it to ascend.

2) Considerable reduction in the energy required to drive the reciprocating carriage.

3) Simplification of the mechanisms needed to operate the successive sequences of the spinning cycle.

4) Greater ease and comfort of the operator.

1. A spinning machine which produces uniform yarn by spindle drafting fibre presented to the spindles through the agency of a carriage containing the fibre delivery rollers reciprocating over an inclined plane. The descent of the carriage is by gravity against the control of a counterweight. Fibre delivery ceases after a predetermined point after which the continued descent of the carraige attenuates (drafts) the fibre into uniform density.