  The Debrecen Photoheliographic Data catalogue is a continuation of the
Greenwich Photoheliographic Results providing daily positions of sunspots and
sunspot groups. We analyse the data for sunspot groups focusing on meridional
motions and transfer of angular momentum towards the solar equator. Velocities
are calculated with a daily shift method including an automatic iterative
process of removing the outliers. Apart from the standard differential rotation
profile, we find meridional motion directed towards the zone of solar activity.
The difference in measured meridional flow in comparison to Doppler
measurements and some other tracer measurements is interpreted as a consequence
of different flow patterns inside and outside of active regions. We also find a
statistically significant dependence of meridional motion on rotation velocity
residuals confirming the transfer of angular momentum towards the equator.
Analysis of horizontal Reynolds stress reveals that the transfer of angular
momentum is stronger with increasing latitude up to about 40$^{\circ}$ where
there is a possible maximum in absolute value.
