The top photo shows a two ball spike puller, a three ball spike puller, and a four ball spike puller. They are used as described above.
One response listed them as a "spike lifter". If you follow the link below:
http://www.akrailroad.com/OnlineCatalog ... fault.aspx
and scroll down the page to where one can see the spike puller. Directly below the picture of the spike puller is a picture of the spike lifter. A spike lifter is used where the claw part of the claw bar can't be put under the head of the spike because it is over driven, or was crushed by a wheel during a derailment. The spike lifter is designed to be struck by a sledge. The sharp end wedges up the spike as it is being struck. After the spike is lifted, the claw bar will then fit and the spike can be pulled. Because they get used so infrequently, they tend to get lost, or buried deep in the truck. The usual solution is to drive the claw bar on by hitting its heel with a sledge hammer. This is against the safety rules because of the danger of it spalling, and chips flying off when struck. However, look at most claw bars, and they will have hammer marks on the heel.
I have also heard of them as "donkey d**ks". On the B&M they were called a "veronica"; which, I believe, is a bastardization of the Verona Tool Co.
The other picture shows switch adjustment wrenches used by maintainers to adjust power switches. They are bent to get the heads on the nuts of the switch rods down in the cribs between the headblocks of a switch.