RailRoadFan.com

Glad you enjoyed it EW. Here are a couple of other old volumes concerning signaling. Block Signal Operation 1902 by William Lloyd Derr https://archive.org/details/blocksignaloper01derrgoog/page/n3/mode/2up The Block System of Signaling on American Railroads: The Methods and ... 1901 by Braman Blanch...

And here in Maine where I live, the old Back Cove railroad swing bridge is about to be torn down. Too bad as my understanding is there aren't a lot of this type of bridge left standing. https://wjbq.com/a-short-history-of-the-back-cove-swing-bridge-in-portland-photosvideo/ https://standardnews.com/y...

Here's one close to home. The Cape Cod Canal bridge and some info about it. https://www.nae.usace.army.mil/Portals/74/docs/Recreation/CCC/Brochures/Vertical_Lift_Railroad_Bridge_Trifold.pdf https://historicbridges.org/bridges/browser/?bridgebrowser=massachusetts/buzzardsbayrailroadbridge/ https://br...

Iron and timber railway superstructures and general works; giving dimensions and quantities for the standard 4 ft. 8 1/2 in gauge, and the metre 3 ft. 3 3/8 in gauge ... with some earthwork tables, and outline of a specification and requirements 1874​ by Grover, J. W. (John William), 1836-1892 https...

Types and details of bridge construction 1904​
by Skinner, Frank W. (Frank Woodward), 1858-1932

https://archive.org/details/typesanddet ... 6/mode/2up

[Catalogue] : the Berlin Iron Bridge Company, office and works, East Berlin, Connecticut, U.S.A. : iron railroad bridges, iron roofs ... etc. 1890​
by Berlin Iron Bridge Co.

https://archive.org/details/cataloguebe ... 1/mode/2up

Some old trestle bridges.

https://mashable.com/2015/10/29/railroad-trestles/

https://www.thevintagenews.com/2018/02/ ... e-bridges/

https://en.wikipedia.org/wiki/Trestle_bridge

Here's a fun "guide" I found online a while back.

http://www.catskillarchive.com/rrextra/glossry1.Html

The last 3 pages.

An article from the 1892 Locomotive Engineering journal about Switch Signals.

Ashcroft Gauge catalog 1920


https://www.google.com/books/edition/As ... frontcover

Frost dry carburetter system for lighting passenger and other railroad cars 1889 by Railway Lighting and Heating Company, Philadelphia https://archive.org/details/cu31924032183950/mode/2up Train lighting by electricity 1914 by L., J. F https://archive.org/details/trainlightingbye00jflouoft/page/n5/m...

Some articles and pictures of railroad bridges. https://monovisions.com/vintage-railroad-bridges-with-timber-trestles/ https://archive.org/details/scientific-american-1899-08-26/mode/2up https://www.poughkeepsiejournal.com/story/news/local/2014/05/07/poughkeepsie-railroad-fire-anniversary/8831573/ h...

Ransomes and Rapier : Engineers and Founders [Catalogue] 1876
by Ransomes and Rapier

https://archive.org/details/RansomesAnd ... 6/mode/2up

Mechanical catalog. 1934
by The American Society of Mechanical Engineers

https://archive.org/details/Mechanical_ ... p?q=ashton

Some recent ones.

Illustrated catalogue of locomotives; Baldwin Locomotive Works 1881
by Baldwin Locomotive Works; Burnham, Parry, Williams & Co

https://archive.org/details/illustrated ... ve+engines

A number of the old Ashton Valve catalogs are now on archive.org.

https://archive.org/details/ashtonvalvetradecatalogs

Sheet metal and supply co. - catalogue f. by Sheet Metal and Supply Co https://archive.org/details/SheetMetalSupplyCo/mode/2up/search/ammonia+valves+and+gauges?q=ammonia+valves+and+gauges Handy Notes and Queries : A Manual of Useful Information of Especial Importance to Dealers in Hardware, Stoves a...

Bristol's recording instruments manufactured by the Bristol Company, Waterbury, Conn., U.S.A 1925 by Bristol Company https://archive.org/details/BristolsRecordingInstrumentsManufacturedByTheBristolCompanyWaterbury/mode/2up/search/recording%2C+vacuum%2C+steam++gauges?q=recording%2C+vacuum%2C+steam++g...