Water Bottle Cap (screw)

This water bottle cap uses a type of screw to create a tight seal, so the fluid will not escape when the cap is on; also, the rotational motion required to take the cap off or put it on helps to prevent it from accidentally coming loose and causing spills.
6th Floor of Robert Lee Moore Hall, University of Texas, Austin, TX 78705
by Matthew Bramhall

Doorknob (Wheel and Axle, Screw)

Used To Open The Door And Keep It Closed
My House
by Madison Lawyer

September 11, 2013 6:30PM

Moore Hill Residence Hall

West Mitchell

Foosball Table (Lever, Screw)

September 13, 2013: 2:03 AM 

By: Phillip Vuong

The metal rods that run horizontally across the table work as rotating levers (wheel and axle) to spin the undaunted foosball kickers. With the help of large screws through their backs to keep them firmly fastened to the rods, the acrobatic foosball kickers are able to perform endless backflips with high rotational velocities to send the foosball flying.

Adjustable Wrench

The entire wrench acts as a lever to convert the distance your hand moves into force to twist the bolt. The head of the wrench is adjustable because it contains a screw (a wrapped inclined plane) that allows the fulcrum to change size. Picture taken in my dorm.

Pant Hanger (screw, lever)

The clippers used for hanging your pants are an example of levers.(The effort you put in on one side is magnified as the clippers are lifted open on the other side.)  The metal hook is attached to the plastic by a screw. 

Location: Jester East 201 East 21st Street 4th floor 
Austin, TX 78705 

by: Hareem Usmani (9:30 pm, 9/12/13)

Pulley Winch (Wheel, Pulley, Screw, Wedge)

This pulley winch is part of a pulley system and utilizes a wheel for the rope to wind onto, a wedge to keep the wheel in place and stop it from rotating, and a screw to hold the parts together. This winch is used to support banners hung over a walkway.

Location: Bridge near ETC

Bicycle (Wheel, Bolt and Nut, Gears)

This is the back wheel of a bicycle. Here the have the wheel itself but also other components that make the bicycle function like the gears that allow you to go faster or slower and up or downhill, and also a bolt and nut that keeps the wheel and gears in place.

Location: Park and Locked Outside of Brackenridge Section B Dorm

Taken By: Raul Pineda

Date and Time: 9/12/13 - 8:00PM

Lawn Mower (wheel, wedge, screw)

This lawnmower has a few simple machines combined together. Obviously, it implements wheels, and there are screws holding the handle together, but underneath there is also a rotating blade that is slightly sharpened and acts as a wedge when cutting the grass.
The picture is in a friends backyard on Stoneoak Lane, Austin, Texas
by Saul Carrillo

Faucets: screw and a wedge

These faucets, at the Jester West 12th floor laundry room, use a screw to raise and lower a wedge that blocks or allows the water to flow.

Jester West 12th floor

By Andrew Dismukes

Can Opener (Lever, Screw)

This can opener opens our cans of soup.
Blanton Dormitory 4th Floor
by Sam Roach

Fire Hydrant (Screw, Wheel)

This fire hydrant utilizes an interior screw design to hold in pressurized water. Also, the wheel-shaped grips used for releasing the water work by giving a fireman radial leverage with which to turn the screw.
Exterior of Robert Lee Moore Hall, near Speedway/Dean Keeton, Austin, TX, USA
by Matthew Bramhall

Can Opener- Screw and Wedge

The Can Opener uses a gear system that can be moved with a screw on the back of the can opener. As you squeeze down the handles of the can opener, you can puncture the top of an aluminum can with a pointed, rubber wedge which then rotates with the friction between the side of the can and wedge meet to make a clean cut on the entire top of the can.

Cabinet Locking Setup (Screw + Wedge + Wheel and Axle + Gear)

• A picture of the locking setup for the cabinet in my dorm. Wedges are found behind the door and within the hook of the combination lock. Wheels and axles can be found in the combo lock and where the wedge behind the door can be rotated 360 degrees. Screws attach most of the setup to the door. Gears within the combination lock finish the setup by activating the lock/unlock feature.
• Jester West, Floor 13, September 11, 2013
• by Ken Nguyen  

Garden Shears, (Wedge, Lever, Spring, Screw)

These shears are used to trim overhanging leaves and stuff.
Taken in my house in Sugar Land, TX.  at 11:27 AM on Sept. 8th
By Harsha Rao

Stapler--1:35 PM 9/7/13

Elevator Shaft Nut, 9/05/13, 1:45 PM,Thomas Ermis

Henry Pang 9/4/13 Screws, Nuts, Bolts

Screws, Nuts and Bolts - Picture 1

A small food trailer, found at the intersection of Speedway and E. Dean Keeton Street, was held up by a jack with a screw head.

8/30/2013 3:10PM, Cunyuan Zheng, the Castilian