Carburetor adjustment screw apparatus
AssigneeBarcarole Limited
InventorsPatrick Walsh, Roger Bowles
Life of this patent
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Abstract
A fuel adjustment screw apparatus for a diaphragm-type carburetor comprises a screw member (4) having a shaft (4a) and a head (12) by which the shaft may be rotated, with a generally tubular open-ended housing (9) surrounding the head of the screw member. A cap member (10) is mounted in the housing and is movable axially of the screw member between a first position (as seen in FIG. 1) and a second position (FIG. 2). The cap member is held clear of the head of the screw member in the first position so that the screw member can rotate freely, and engages over the head of the screw member in the second position for rotation with the head. The housing has stop means (20) which is engaged by the cap member in the second position for limiting the angle of rotation of the head.
Claims6
A carburetor adjustment screw apparatus comprising a screw member having a shaft and a head by which the shaft may be rotated, a generally tubular open-ended housing surrounding the head of the screw member, and a cap member mounted in and supported by the open end of the housing and movable axially of the screw member between first and second positions, the cap member being held by the housing clear of the head of the screw member in the first position and engaging over the head of the screw member in the second position for rotation with the head, the housing having stop means engageable by the cap member in the second position for limiting the angle of rotation of the head.
Dependencies are inferred from the claim text.