80 is rotatably mounted on a shaft 84 between a c clamp 86 and a kick out link 88 which is pivotally supported at opening 90 on the shaft an enlarged diameter portion 92 of the shaft engages the underside of the link and a threaded end portion 94 of the shaft extends through the bottom plate 52 of frame 44 the shaft is held fast to frame 44 with a nut 200 on threaded portion 94 part of the threaded portion extends under the nut for use as a locator in the machine structure reference character 98 designates a rotatable stack of pattern cams the individual cams of which are used to control the sewing of patterns on the machine the cam stack is driven by the arm shaft 97 of the machine through a worm 99 and worm wheel 100 a cam follower 102 is provided for the cam stack 98 such cam follower is mounted at 104 for pivotal and axial movement on shaft 84 a pin 106 is affixed in the follower the pin is threaded at 107 into the follower arm 108 to permit adjustment and is secured thereto with a locking nut 110 the cam follower is biased downwardly into a position of engagement between pin 106 and stepped cam 82 by a helical spring 112 located under a pronged washer 114 which is secured to shaft 84 with a screw 116 the spring is hooked at opposite ends 118 and 120 onto washer 114 and follower arm 108 respectively and also biases the follower about the axis of shaft 84 in a direction away from cam stack 98 a bight regulating lever 122 is operable to move cam follower 102 into.