What are these for?

[BrendaSchonig]

I have a several hand fulls of these and I have no clue what they are for. Help identify then please. Also what are the Piezo buzzers used for? I have three of them.

 

[LGB333]

Those are rail clamps. The others appear to be speakers or maybe a buzzer units.

 

[BrendaSchonig]

Those are rail clamps. The others appear to be speakers or maybe a buzzer units.

What are rail clamps used for?

 

[Zerogee]

Yep, a type of rather basic (but perfectly functional) railclamp - flat plate goes under the rail join, two screws sit either side of the top of the rail foot and clamp them down. They are used in place of the push-on rail joiners (which you need to remove with pliers), providing a very much better and more secure join both physically and electrically.

Jon.

 

[Paul M]

A piezo buzzer is usually used as a warning buzzer, alarms etc

 

[Bill Barnwell]

Yep, a type of rather basic (but perfectly functional) railclamp - flat plate goes under the rail join, two screws sit either side of the top of the rail foot and clamp them down. They are used in place of the push-on rail joiners (which you need to remove with pliers), providing a very much better and more secure join both physically and electrically.

Jon.

These type are Hillman rail clamps and they go over the factory rail joiner, will not fit without very strong and durable

 

[Zerogee]

These type are Hillman rail clamps and they go over the factory rail joiner, will not fit without very strong and durable

OK, I stand corrected - I had assumed they were just a simpler and less sophisticated version of the Massoth type of clamp. In that case I presume they work by just squeezing the joiner more tightly onto the rail?

They appear similar to the Piko type of clamp, which also uses the four-screw arrangement, but has a slot milled into the plate to take the rail foot.

Jon.

 

[Bill Barnwell]

OK, I stand corrected - I had assumed they were just a simpler and less sophisticated version of the Massoth type of clamp. In that case I presume they work by just squeezing the joiner more tightly onto the rail?

They appear similar to the Piko type of clamp, which also uses the four-screw arrangement, but has a slot milled into the plate to take the rail foot.

Jon.

OK, I stand corrected - I had assumed they were just a simpler and less sophisticated version of the Massoth type of clamp. In that case I presume they work by just squeezing the joiner more tightly onto the rail?

They appear similar to the Piko type of clamp, which also uses the four-screw arrangement, but has a slot milled into the plate to take the rail foot.

Jon.

That is correct, pretty much fool proof and indestructible all stainless and I've got pocket full that I would let go for the right price as I no longer have a layout, brand new as well

 

[Dan]

Those are not Hillman. Hillman makes brass clamps just like Split-jaw. To the best of my knowledge these were made in the US therefore, the screws are NOT metric.

 

[Bill Barnwell]

Actually they were designed by roll-ez 15 years ago and are still made and sold by Al Kramer of www.roll-ez.com

 

[GAP]

I saw them in an old 2009 Garden Railways sold by " San-Val" with the name of "the conductor".

Good for improving conductivity theourh rail joiners or in my case as extra strength at the joint if it falls part way through a curve.

I've been looking for more, thanks for the link.