Something I've been looking into between Ingersoll Lockwood's book and the company Ingresoll Rand. Lockwood's book underground journey and Rand's beginnings in drilling.

 

1871

Simon Ingersoll’s steam-powered rock drill is patented

Ingersoll Rock Drill Company is formed

 

1872

Rand & Waring Drill & Compressor Company is formed

 

1879

Rand & Waring changed to Rand Drill Company

 

1888

Ingersoll Rock Drill Company merges with Sergeant Drill Company to form Ingersoll-Sergeant Drill Company

 

1894

WR Grace named president of Ingersoll-Sergeant

 

1896

J. George Leyner invents the hammer drill

 

1902

Type X portable compressor line is introduced by Rand

 

1904

Panama Canal is started using Ingersoll-Sergeant drills

 

1905

Merger of Ingersoll-Sergeant Drill Company and Rand Drill Company to form Ingersoll-Rand Company.

 

1906

William Saunders becomes first president of Ingersoll-Rand

 

1907

Imperial Pneumatic Tool is acquired

 

1909

A.S. Cameron Steam Pump Works is acquired

 

1912

Jackhammer drill is invented (Tradename: Jackhammer)

 

1912

J.G. Leyner Engineering Works Company is acquired

 

1913

William Saunders becomes Ingersoll-Rand’s first Chairman

 

1925

Develops first commercially successful diesel electric locomotive engine; first diesel electric locomotive sold to Central Railroad of New Jersey

 

 

https://company.ingersollrand.com/company/company-history.html