Joseph Bramah was born on April 13, 1748, and died on December 9, 1814. He was an English inventor and locksmith. He is most famous for improving the flush toilet and creating the hydraulic press. He worked with William Armstrong, 1st Baron Armstrong, and together they are considered two of the main people who helped start the field of hydraulic engineering.

Early life

Joseph Bramah was the second child in a family with Joseph Bramma (note the different spelling of the last name), a farmer, and his wife, Mary Denton. He attended school in Silkstone, South Yorkshire, and after finishing school, he became an apprentice to a local carpenter. After completing his training, he moved to London and began working as a cabinet-maker. In 1783, he married Mary Lawton of Mapplewell, near Barnsley, and the couple moved to London to start a home. They had one daughter and four sons. At first, they lived at 124 Piccadilly, but later they moved to Eaton Street in Pimlico.

Improved water closet

In London, Bramah worked for Mr. Allen, installing toilets that were based on a patent created by Alexander Cumming in 1775. He noticed that the toilets being used in London homes often froze during cold weather. Although Allen made an improvement by replacing the slide valve with a flap that closed the bottom of the toilet bowl, Bramah received the patent for this design in 1778. He then began producing toilets in a workshop located on Denmark Street, St Giles.

Bramah Locks company

After attending lectures about how locks work, Bramah created a lock of his own. He received a patent for this invention in 1784. That same year, he started the Bramah Locks company at 124 Piccadilly. Today, the company is based in Fitzrovia, London, and Romford, Essex.

The locks made by Bramah’s company were well-known for being very hard to open using lock picking or other unauthorized methods. The company displayed a special "Challenge Lock" in the window of their London shop starting in 1790. The lock was mounted on a board with the message:

"The artist who can make an instrument that will pick or open this lock shall receive 200 guineas the moment it is produced."

This challenge remained unmet for over 67 years. In 1851, at the Great Exhibition, an American locksmith named Alfred Charles Hobbs successfully opened the lock. After some discussion about how he opened it, Hobbs was given the prize. His attempt took 51 hours spread over 16 days.

The Challenge Lock is now in the Science Museum in London. A close look at the lock shows that it has been repaired and modified since Hobbs opened it. Originally, it had 18 iron slides and 1 central spring. Today, it has 13 steel slides, each with its own spring.

Bramah received a second patent for a new lock design in 1798.

Machine tools

Because of the need for precise locks, Bramah spent a lot of time creating machine tools to help with manufacturing. He used the skills of Henry Maudslay, whom he hired when Maudslay was 18 years old. Together, they built several new machines that improved the making of Bramah's locks and could also be used in other areas of manufacturing. Before Bramah died, his workshop also employed Joseph Clement, who helped improve the design of lathes.

Hydraulic press

Bramah's most important invention was the hydraulic press. The hydraulic press works based on Pascal's principle, which states that pressure applied to a liquid in a closed system is spread equally throughout the system. The press had two cylinders with pistons of different sizes. When a force was applied to the smaller piston, it created a larger force on the bigger piston. The difference in force between the two pistons depends on the difference in their sizes. In this way, the cylinders function like a lever to increase the amount of force used. Bramah received a patent for his hydraulic press in 1795.

Bramah's hydraulic press had many uses in factories and industries, and it is still used today. When Bramah was developing his invention, the study of using water pressure for machines was a new and little-known field. Bramah and William Armstrong, 1st Baron Armstrong, were the first people to lead the development of this field.

The hydraulic press is still called the Bramah Press after its inventor.

Other inventions

Bramah was a very productive inventor, but not all of his creations were as important as his hydraulic press. Some of his other inventions include: a beer engine (1797), a planing machine (1802), a paper-making machine (1805), a machine that printed bank notes with numbered serials (1806), and a device for making quill pen tips (1809). He also developed a new method for shaping lead pipes and created tools for making gun parts (Patent No. 2652).

His most important contribution to engineering was his focus on making sure products were of high quality. He understood that for engines to work well, they needed to be built with higher precision than was common at the time. He taught an engineer from Cornwall named Arthur Woolf how to build engines with very precise measurements. This allowed Cornish engines to operate using high-pressure steam, making them much more powerful. Woolf became the top engineer in Cornwall, and his designs were used by other engineers of that time. By 1835, engines that once had 15 horsepower (HP) had grown to 450 HP. Bramah is considered one of the first people to promote quality control in industry.

Death and legacy

One of Joseph Bramah's final inventions was a hydrostatic press powerful enough to remove trees from the ground. This machine was used at Holt Forest in Hampshire. While overseeing the project, Bramah caught a cold that later became pneumonia. He passed away at Holt Forest on 9 December 1814 and was buried in the churchyard of St. Mary's Church in Paddington Green.

Historian Ian Mortimer describes Bramah as follows:

“Joseph Bramah – a gifted individual who created the modern flushing toilet – also invented the beer pump. Few people in history have contributed as much to human comfort, both in helping people drink and in helping them stay clean.”

The Brazilian beer brand Brahma is named after him. In 2006, a pub in Barnsley town center was opened and named the Joseph Bramah in his honor.