Abstract: A mounting apparatus for a liquid flow meter adapted to be detachably mounted upon the top edge of a weir. The mounting apparatus includes a base plate supporting a clock-driven recording drum for rotary movement above the base plate and for supporting a stilling well below the base plate. A float shaft, having a float at its lower end within the stilling well, extends through the base plate for vertical reciprocal movement and supports a scribing tool above the base plate for scribing engagement with the recording drum. The recording drum, scribing tool and all other elements supported above the base plate are enclosed in a bell jar housing sealingly held against the top surface of the base plate to provide sufficient air pressure to limit the rise of any liquid within the bell jar housing.

Abstract: A weir pattern device including an elongated body and one or more elongated wing members telescopingly received on said body for adjusting the length of the pattern device to span the width of a flow channel for which a weir is to be made, a plurality of parallel vertical profile rods mounted on the body and the wing members for vertical positioning so that the bottom ends of the profile rods engage the contoured bottom surface of the flow channel, in operative position. The pattern device further includes at each end, a pivotally mounted foot or shoe member adapted to bear against the corresponding sides of the channel. These shoe members may include an elongated upright bearing piece of moldable or plastic material for conforming to the side surface of the channel.