Hipp Pendulum Clock

[Stephen MackieParticipant @stephenmackie10043]

As a young lad back in the 1950’s I read an article in one of the magazines about the construction of a one second Hipp pendulum clock using the wheel work of a cheap alarm clock. I am certain the someone of my vintage must know about this and could help this old Aussie with the plans.

I enclose my mail address:

 

Steve Mackie

11 Huxley Avenue

MULGRAVE

Victoria

Australia

[Stephen MackieParticipant @stephenmackie10043]

[NJHParticipant @njh]

Hi Steve

 

I don’t have access to this particular article but I do have a book by John Wilding – How to make a Battery Powered Electric Clock . This operates on the Hipp Toggle principle.

There is a link Here

This is an unusual clock in that the pendulum moves from back to front rather than left to right. The clock is a modification of the Hipp known as the Scott clock. It seems that the Scott version was made by the Ever Ready Battery Co in the early 20th Century. I have seen an example at Castle Drogo in Devon.

I have the book, I have all the materials and one day I might even get round to making it !

This may not help your search but may be of interest.

 

Regards

 

Norman

[NilochParticipant @niloch]

Can’t help you directly I’m afraid but it’s possible you might find this link of assistance.

[Richard ParsonsParticipant @richardparsons61721]

Hello there

I think you will find what you want here It dates back to 1948 and is by artificer.

Hope it is what you want

Regards

Dick

[Richard ParsonsParticipant @richardparsons61721]

Hello again Steve

I only found half of it but here is the whole thing

It looks a nice little project.   By the way old Artificer got something wrong Archimides -a mate of Old Doggyknees- did his streak in Syracuse not Athens.  But i think the rest of it is OK. 

Dick

Edited By Richard Parsons on 05/03/2011 15:07:32

Edited By Richard Parsons on 05/03/2011 15:16:51

[BusterParticipant @buster]

Hi Stephen, i remember the exact article you are talking about but i am not sure if i still have the notes etc, i will get back to you and let you know, cheers David

[BusterParticipant @buster]

Hi Stephen, try your library service for these books, electric clocks and chimes isbn 0 85242 474 or Electric clocks-principles-construction and working ( no isbn No) but it was printed in 1920 as a series of Cassels work handbooks, cheers David

[John HaineParticipant @johnhaine32865]

Er, the Eureka is a balance wheel clock and doesn’t use the Hipp toggle principle – see http://www.hvtesla.com/masters/po36_toggle.html for a description of how that works.

[Stephen MackieParticipant @stephenmackie10043]

Hello David

Thank you so much for all your research efforts. I will certainly,follow them through.

Cheers, Steve

[Stephen MackieParticipant @stephenmackie10043]

Hello John

Thank you for the information on the Hipp cycle and for understanding what I was talking about

Cheers, Steeve

[Richard ParsonsParticipant @richardparsons61721]

There is another form of the Hipp escapement. This gives an impulse to the pendulum when the amplitude of its swing has died down to below a set limit. The ‘scape wheel is cut with both a primary and a secondary cuts. The primary cut is the normal cut for a Hipp pull escapement. Close to it is a secondary cut which is on a smaller diameter than the first (primary cut). As the pendulum amplitude dies down the escapement fails to hook in to the primary cut, so it falls into the secondary cut and rotates the wheel a little less BUT by lowering the ‘hook arm’ it closes the circuit to the Power Magnet which then boosts the now disengaged free swinging pendulum. The advantage of this is that the impulse is given to the pendulum when the pendulum is disengaged. It has at least half a beat to re stabilise. As the hook arm runs forward for another pull on the ‘scape wheel, it lifts and opens the magnet circuit.

The advantage of the GPO type Hipp trigger is that it is easier to adjust. The GPO clocks were fitted with a ‘de-bounce’ system which stopped the clock from getting into a ‘bounce’ situation.

Magnets for Hipps have to be made of metals which demagnetise easily. Old transformer cores are probably the only source of this stuff.

[Author]

Posts