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BURST DISC ET016 ON HPF HIGH PRESSURE FACILITY ALTITUDE EXHAUST SYSTEM

KENNEDY SPACE CENTER, FLA. - The canister is lifted off the Mars Exploration Rover 1 (MER-B) in the gantry on Launch Complex 17-B, Cape Canaveral Air Force Station. The second of twin rovers being sent to Mars, it is equipped with a robotic arm, a drilling tool, three spectrometers, and four pairs of cameras that allow it to have a human-like, 3D view of the terrain. Each rover could travel as far as 100 meters in one day to act as Mars scientists' eyes and hands, exploring an environment where humans can't yet go. MER-B is scheduled to launch June 26 at one of two available times, 12:27:31 a.m. EDT or 1:08:45 a.m. EDT.

Rocky Flats Plant, Plutonium Manufacturing Facility, North-central section of Plant, just south of Building 776/777, Golden, Jefferson County, CO

Visit to Colombia's Pacific Defense Front

Earth, sky, and sea (1956) (21130290665)

BOEING VERTOL EXPERIMENT, NASA Technology Images

U.S.S. HORNET, Puget Sound Naval Shipyard, Sinclair Inlet, Bremerton, Kitsap County, WA

The ship's service generator No. 3 room, Compartment 3-426-1-E, aboard the guided missile cruiser SHILOH (CG-67). The SHILOH is 90 percent complete

Watts Bar steam plant. Partial view of generator hall with one of 60,000 kva turbines in foreground. Gray ceramic tile floor, blue-gray tile walls, exposed steel work designed for maximum simplicity with rigid frame roof arches, precast concrete slabs, continuous glass brick above crane rail level. Units in light cream with a rich tan over portions of the machinery subject to particularly high temperatures. Light color over other portions compels first-class maintenance, also emphasizes importance of units by concentrating attention

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Putting tire into curing mold. From the vacuum expander, the potential new truck tire is taken to this "watch-case" curing mold in which it is baked under high heat and pressure for a long time. The exact time and temperature varies with the type and size of tire. The airbag inside the carcass is filled with live steam during this process so that heat is added from both inside and out. The mold contains the tread pattern, or design, as well as all markings which will appear on sidewall. Under this heat and pressure the rubber turns semi-liquid, and flows into every crevice, completely bonding the rubber processed fabric carcass to the cushion, the cushion to the tread. After this operation it is now one unit--a complete tire. Firestone (General) Tires, Akron, Ohio

Placing the raw tube in the curing mold. This tire worker gives the tubes the same treatment his co-workers give tires; They are cured in a watch-case mold for the required length of time at the proper heat. Naturally tubes take less time than tires because they are single thickness. They are their own "airbags" and are cured inside and out by having live steam forced through them during the cooking process. Firestone (General) Tires, Akron, Ohio

Closing the cover of the mold. Entirely automatic, the "watch-case" mold is closed by pushing a button, which starts several operations. First the airbag is filled with live steam which circulates during the entire process; next an automatic timer sets itself for the proper length of time and temperature; next pressure is exerted to squeeze the tire into the mold pattern. Firestone (General) Tires, Akron, Ohio

Closing the cover of the mold. Entirely automatic, the "watch-case" mold is closed by pushing a button, which starts several operations. First the airbag is filled with live steam which circulates during the entire process; next an automatic timer sets itself for the proper length of time and temperature; next pressure is exerted to squeeze the tire into the mold pattern. Firestone (General) Tires, Akron, Ohio

Molds automatically open. At the end of the curing time, the mold draws the steam out of the airbag, opens the lid and ejects the tire from the tread pattern. Workers need to do nothing but pull out the finished tire and put in another uncured carcass. General Tires, Firestone, Akron, Ohio

Battery of curing molds. While the curing, or cooking, operation is going on for the tire we have followed through the plant, it is also going on simultaneously for hundreds of other tires in production. This view shows one corridor in the curing room where fifty tires are being cured at once. Additional molds flank this group on both sides of long corridor such as this one. Firestone (General) Tires, Akron, Ohio

Battery of curing molds. While the curing, or cooking, operation is going on for the tire we have followed through the plant, it is also going on simultaneously for hundreds of other tires in production. This view shows one corridor in the curing room where fifty tires are being cured at once. Additional molds flank this group on both sides of long corridor such as this one. Firestone (General) Tires, Akron, Ohio

Molds automatically open. At the end of the curing time, the mold draws the steam out of the airbag, opens the lid and ejects the tire from the tread pattern. Workers need to do nothing but pull out the finished tire and put in another uncured carcass. General Tires, Firestone, Akron, Ohio

Vacuum shaping machine. Flat carcasses taken from the storage racks are placed in this vacuum machine in which two things happen. First a combination vacuum suction and squeezing action pulls the tire into the shape it will always have in use. Second, an airbag is forced into the inside to provide inside strength for the curing step. Firestone (General) Tires, Akron, Ohio

Putting tire into curing mold. From the vacuum expander, the potential new truck tire is taken to this "watch-case" curing mold in which it is baked under high heat and pressure for a long time. The exact time and temperature varies with the type and size of tire. The airbag inside the carcass is filled with live steam during this process so that heat is added from both inside and out. The mold contains the tread pattern, or design, as well as all markings which will appear on sidewall. Under this heat and pressure the rubber turns semi-liquid, and flows into every crevice, completely bonding the rubber processed fabric carcass to the cushion, the cushion to the tread. After this operation it is now one unit--a complete tire. Firestone (General) Tires, Akron, Ohio

description

Summary

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

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ohio summit county akron safety film negatives akron ohio tire mold vacuum expander vacuum expander truck truck tire watch case heat pressure temperature type size airbag carcass steam process tread pattern tread pattern design markings sidewall rubber semi liquid flows crevice fabric fabric carcass cushion operation firestone general tires history of akron ohio akron free images akron photographs united states history library of congress
date_range

Date

01/01/1941
person

Contributors

Palmer, Alfred T., photographer
United States. Office for Emergency Management.
place

Location

Akron (Ohio) ,  41.08139, -81.51889
create

Source

Library of Congress
link

Link

http://www.loc.gov/
copyright

Copyright info

Public Domain

label_outline Explore Truck Tire, Expander, Sidewall

Headed for last cleanup. Six giant truck tires, of the non-directional type are being wheeled in for cleaning and painting. This pattern, developed for the U.S. Army in 1941 is used for field equipment....gives excellent traction in forward or reverse because of the horizontal cleats, yet rides well on the highway on the continuous center rib. Firestone (General) Tires, Akron, Ohio

Wrapping the finished tire. Seeing is not necessarily believing. Even when you see the tire-wrapping machine in operation, it is difficult to understand how it works....spinning a strand of paper around a tire as fast as the operator can feed them in. All the operator need do is place the tire in position; the machine does the rest. Firestone (General) Tires, Akron, Ohio

The tracks for an Army halftrac scout car begins to take shape on the "building wheel" of a Midwest tire plant. Goodrich, Akron, Ohio

A US Navy (USN) C-2A Greyhound, Fleet Logistics Support Squadron 30 (VRC-30) Providers, begins its catapult from the deck of the Kitty Hawk Class Aircraft Carrier USS CONSTELLATION (CV 64) for the last time as the carrier is going in for three year Service Life Extension Program (SLEP) phase. That's why the Greyhound has no carrier markings

Removing cured tube from mold. As the tire molds are all-automatic, so are the tube molds. This one has just opened; all the operator need do is remove the finished tube and put in another raw one. Note the seam marks in the mold itself, which leave their imprint on the tube. Thus a seamless tube may appear to have a collection of many sections. Firestone (General) Tires, Akron, Ohio

Firestone Memorial model. View III

Detroit, Michigan. New method of making x-ray photographs size 4x5 inches instead of larger. Used at the Herman Kiefer Hospital for Communicable Diseases to show various stages of tuberculosis. The x-ray plate is contained in the apparatus in front of the girl. The apparatus in the foreground contains an x-ray tube

Miniature clock in the form of an elephant supporting a watch case

Rubber reclamation. Scrap tires mobilized for Victory. Millions of discarded casings cover more than 100 acres at one Midwest recovery plant. Systematic piling and sectional arrangement reduce fire hazard. Special processes will separate metal from the tires and tube bodies. The reclaimed material will be used to manufacture thousands of essential mechanical rubber products. Firestone

Public domain stock image. Tread tire rubber.

Public domain stock image. Tire rims automobile.

Transferring Carcass to Meathouse. Paradise Valley, Nevada Folklife Collection

Topics

ohio summit county akron safety film negatives akron ohio tire mold vacuum expander vacuum expander truck truck tire watch case heat pressure temperature type size airbag carcass steam process tread pattern tread pattern design markings sidewall rubber semi liquid flows crevice fabric fabric carcass cushion operation firestone general tires history of akron ohio akron free images akron photographs united states history library of congress