Can you help identify the names of these mechanical objects?

Hello again gals & guys:

Some of you may remember me. I am the "Kennedy Guy" who -against all advice- is stubbornly trying to have SolidWorks (corporation, product and most importantly: The People) be an important part in the creation of a Free Open Source 3D Model of Dealey Plaza:

The following URL which contains my production so far has been blocked by the moderator in the past, inexplicably:

http://www.dealey-plaza.org

http://www.dealey-plaza.org/this-government-as-promised

Let me tell you something: Finding people with your talent, willing to work for free (for the glory) is not as easy as some may think. :-\\

Slowly but surely I have located talent, mostly in the competing GrabCAD site. They have asked: "What can I do?" and I have identified some perfect candidates, seen below.

For instance, that flat contraption is a weighing device? Links to companies that manufacture that sort of, or similar devices are most welcome.

MTIA,

-Ramon

JFK Numbers

SolidworksGeneral