pivot directly into the yarn y thereby eliminating the need for a brake pad another embodiment of the invention is depicted in fig5 to 9 in fig5 a yarn insertion mechanism 100 is shown having a driver component 102 and yarn carrier mechanism 104 fitted within a housing 101 during operation driver component 102 is mounted within housing 101 remaining stationary driver component 102 drives the yarn carrier mechanism 104 to effect yarn insertion the yarn carrier mechanism 104 has a lower portion 106 and upper portion 108 that fit together in a complimentary arrangement a hypodermic needle 110 is affixed to the distal end of the lower portion 106 yarn y is threaded through driver component 102 yarn carrier mechanism 104 and hypodermic needle 110 this is the general arrangement the specific arrangement is described with particularity below still referring to fig5 driver component 102 is provided on its rear face 112 with a tubular inlet 114 for receiving pressurized fluid from a pressurized fluid source not shown tubular inlet 114 is in communication with the driver component 126 by way of conduit 116 which enters the body 118 inside the body there is provided a tunnel not shown that serves as a flow path for the pressurized fluid that enters the body driver element 126 extends out of the tunnel for the pressurized fluid and is actuable in an outward direction in response to the application of pressurized fluid when actuated the driver element 126 moves out of the conduit 116 in the direction of the yarn carrier mechanism 104 when pressure actuated driver element 126 is attached the upper portion 108 of the yarn carrier mechanism 104 and.