The early Time shutter, introduced in 1887, followed the patent more closely than later models. The release arm was attached to the lower edge of the shutter. The shutter was wound by a knob attached to the upper roller that moved the setting wheel (there was no cord). The T and I setting was by a small lever and cam at the top of the shutter near the setting wheel. A cord and internal pulley to set the shutter were introduced in 1889, from around 1890 the arm was attached at the top of the shutter. The operation is the same as the later 'T&I' shutter. Optionally, on later models, a ratchet speed indicator could be fitted.

Intended for studio work where silent operation was required. There is no timing mechanism, the blinds remain open whilst there is pressure on the bulb.

The Snap Shot operates similarly to the T&I. There is no cog wheel connected to the upper roller instead the release arm locks into a small disc with four indentations. There is no T setting. The instantaneous speeds are as on the T&I model. Normally the approximate speeds were shown on an ivory disk rather than the ratchet indicator. An aluminium version was also produced.

The early models of the stereo Time shutter were for fitting in front of the lens. Later, c. 1893, a version fitting behind the lens was introduced. The model that fitted behind the lens could be fitted with variable lens separation.

The single blind has two large apertures, the tension roller and take-up roller are both at the top of the shutter an idler is at the bottom around which the blind is wound. The effect of the two apertures moving in opposite directions is that the shutter opens from the centre.