![Science of railways . ff Automatic Variable Exhaust. (Plan View.; base and nozzles are attached; c c are the pipes whichare tapped into the exhaust; d is a cross-pipe connect-ing the Science of railways . ff Automatic Variable Exhaust. (Plan View.; base and nozzles are attached; c c are the pipes whichare tapped into the exhaust; d is a cross-pipe connect-ing the](https://c8.alamy.com/comp/2CGX3EA/science-of-railways-ff-automatic-variable-exhaust-plan-view-base-and-nozzles-are-attached-c-c-are-the-pipes-whichare-tapped-into-the-exhaust-d-is-a-cross-pipe-connect-ing-the-two-b-b-are-the-drums-i-i-are-gate-valvesinserted-into-the-pipes-c-c-back-of-the-cross-pipe-d-themechanism-for-operating-the-gate-valves-from-the-hftshaft-in-this-case-involves-the-use-of-special-slidesworking-in-guide-bases-which-are-attached-to-theframes-the-shdes-being-made-with-inchned-slotswhich-engage-rollers-attached-to-the-vertical-stems-ofthe-gate-valves-as-the-shdes-have-a-horizontal-i30-locomotiv-2CGX3EA.jpg)
Science of railways . ff Automatic Variable Exhaust. (Plan View.; base and nozzles are attached; c c are the pipes whichare tapped into the exhaust; d is a cross-pipe connect-ing the
![Go To Plan B. Human Passes To The Second Plan. Plan A Failed. Vector Illustration Flat Design. Isolated On Background. Success Solution. Alternative Idea. Stock Photo, Picture And Royalty Free Image. Image Go To Plan B. Human Passes To The Second Plan. Plan A Failed. Vector Illustration Flat Design. Isolated On Background. Success Solution. Alternative Idea. Stock Photo, Picture And Royalty Free Image. Image](https://previews.123rf.com/images/hvostik/hvostik1810/hvostik181000102/110981512-go-to-plan-b-human-passes-to-the-second-plan-plan-a-failed-vector-illustration-flat-design-isolated-.jpg)
Go To Plan B. Human Passes To The Second Plan. Plan A Failed. Vector Illustration Flat Design. Isolated On Background. Success Solution. Alternative Idea. Stock Photo, Picture And Royalty Free Image. Image
![Coinage: (a) horse drawn roller (b) plan of the roller. Etching by Bénard after Lucotte. | Wellcome Collection Coinage: (a) horse drawn roller (b) plan of the roller. Etching by Bénard after Lucotte. | Wellcome Collection](https://iiif.wellcomecollection.org/image/V0023668EL/full/full/0/default.jpg)