I had another look in the reference book and I'd missed an illustration of the back plate of an FW Elliott 3 train weight driven tubular chiming movement from a 1951 brochure which has 4 hammers parallel to the back plate and is very similar indeed to the movement of this clock though the hammers look shorter in length though that may be the illustration. The movement is described as similar to a JJ Elliott version sold by Grimshaw & Baxter which is shown in the same book but from a much earlier date. The case of this clock is a G&J one though FWE also took over G&J's case making business and the case is said, with minor modifications, to have still been in production until the 1980s. Unfortunately the mechanism housing the 4 tubular gongs is not shown.
So I think that appears to identify this clock though pictures of the rear of the movement and any markings may help along with plate dimensions.