  In a search for evidence of the short wavelength increment in the
Sunyaev-Zel'dovich (SZ) effect, we have analyzed archival galaxy cluster data
from the Sub-millimetre Common User Bolometer Array (SCUBA) on the James Clerk
Maxwell Telescope, resulting in the most complete pointed survey of clusters at
850 microns to date. SCUBA's 850 microns passband overlaps the peak of the SZ
increment. The sample consists of 44 galaxy clusters in the range 0 < z < 1.3.
Maps of each of the clusters have been made and sources have been extracted; as
an ancillary product we generate the most thorough galaxy cluster point source
list yet from SCUBA. Seventeen of these clusters are free of obvious AGN and
have data deep enough to provide interesting measurements of the expected SZ
signal. Specialized analysis techniques are employed to extract the SZ effect
signal from these SCUBA data, including using SCUBA's short wavelength band as
an atmospheric monitor and fitting the long wavelength channel to a model of
the spatial distribution of each cluster's SZ effect. By explicitly excising
the exact cluster centre from our analysis we demonstrate that emission from
galaxies within the cluster does not contaminate our measurement. The SZ
amplitudes from our measurements are consistently higher than the amplitudes
inferred from low frequency measurements of the SZ decrement.
