A Long Boring Story: the Kearns Milling Machine

Engineering machine tools often had very long working lives and were passed from firm to firm, their provenance becoming more vague and shrouded in rumour and mystery.

Even by those standards the story behind this machine seems extraordinary. A horizontal boring, facing and milling machine, it ended its days in the Greenock works of J Gardiner and Company. However, according to what Summerlee staff were told when they acquired the machine in the mid-1980s it was used to make weaponry in both the early and later years of the 20th century.

The story is that the machine was used to make torpedoes during the First World War and later on made parts for Seacat missiles. If anyone can verify this I would love to hear from them.

The machine was built sometime around 1914 by Kearns and Company of Manchester.

We would be very interested to hear from anyone who worked for Gardiners as we have a number of machine tools from them. You can drop me an e-mail at ParkesJ@culturenl.co.uk.

Recognising Scotland's Engineering Heritage

For much of the 19^th century and early 20^th century Scotland were world leaders in engineering; producing a vast array of machinery, tools and finished products. You will see a selection of rare and unique examples from the industry here on display.

Explore the machines up close, find out about the skill involved in operating them and why Scotland was at the forefront in a great age of invention and discovery.

The machinery is part of the museum’s Industrial and Associated Social History Collection which was awarded National Recognition status in 2009 by the Scottish Government. The award confirms the importance of the collection to the nation’s heritage; representing over two hundred years of Scottish industrial development.

The project has been funded by the Recognition Capital Fund administered by Museums Galleries Scotland and North Lanarkshire Council.



The Industrial and Associated Social History
Collection Cared For by North Lanarkshire
Council is Recognised as Being of National
Significance to Scotland



Butt Strap Drilling Machine

During the 1800s the steam pressure needed by steam engines got higher and higher. This meant that the outside of the boiler (called the ‘boiler shell’) had to be built very strongly.

The boiler shell was made by curving thick sheets of iron or steel into a tube. The ends were then overlapped and riveted together. A strip of iron called a ‘butt-strap’ was placed between the two ends to improve the seal.

A butt-strap and boiler shell drilling machine like this one was used to drill the holes for the rivets. The machine is lying flat now but originally stood upright with a turntable at its feet. The boiler shell was clamped to the turntable, which you can now see displayed nearby.

From Thomas Hudson and Companys Sheepford Boiler Works, Coatbridge.

This illustration from a late 1800s engineering manual shows a similar machine. Our machine is bigger and was actually fixed to a column in the factory.

The drill is now displayed horizontally inside the Engineering Pavilion while the turntable is on display nearby.

Stone Planing Machine

This rare machine is an example of the first type of planer for shaping granite blocks, invented in Scotland. It is probably the last survivor.

Machine tools such as this were an important advance in building construction in the mid-1800s, particularly in the North East. They made it possible to accurately work hard granite on a large scale enabling it to used as ‘ashlar’ or dressed stone. This innovation revolutionised quarrying in the process turning Aberdeen into the famous ‘Granite City’.

The stone planer was invented in the 1830s by James Hunter a quarry manager at Leysmill near Arbroath. This particular machine was built by Nicol Esplin, a company founded in Leysmill by a descendant of Hunter. However the company only lasted for 7 years, from 1906 to 1913.

Large Radial Drill

This big Tullis drilling machine was used at Thomas Hudson and Companys Sheepford Boiler Works, Coatbridge.

This type of machine is called a radial drill because it can rotate around its centre column. This is a very versatile tool because the drill and be moved along the horizontal arm and the arm itself can be moved up and down as well as rotating around the centre column.



© Royal Commission on the Ancient and Historical Monuments of Scotland.
Licensor www.scran.ac.uk

This photograph shows the drill inside the Sheepford Boiler Works. Above it you can see a small crane attached to a pillar. Items would be lifted onto the table of the drill using a larger overhead crane that spanned the factory roof.

16 Inch Reed Lathe

By the 1890s it was becoming common to find American machine tools in Scottish engineering works. This example was built by F E Reed and Company of Worcester, Massachusetts who built machine tools of the very highest quality.

This lathe was used in Greenock, first by the Scott Shipbuilding and Engineering Company and then after the Second World War at Gardners Brass Foundry.

Radial Drill

This machine is called a radial drill because it can rotate around its centre column. This is a very versatile tool because the drill and be moved along the horizontal arm and the arm itself can be moved up and down as well as rotating around the centre column.

This particular machine was used in the engineering workshop at Kingshill Colliery, Lanarkshire. It is missing its gearbox, which was bolted to the rear of the table.

There are two larger radial drills on display in the Engineering Pavilion at Summerlee.

Planing Machine





 For more than a century the planing machine was an important tool in the engineers armoury.

This machine was used to make flat surfaces in metal. The cutting tool stayed still while the piece to be cut was clamped to the flat table below, which moved back and forth on rollers.

The table moved slowly on the cutting stroke but the return stroke would be twice as fast to save time. The cutting tool was quite narrow but could be moved gradually sideways to shape wider surfaces.

This particular machine came to the museum from the Fulwood Foundry in Hamilton but is thought to have previously been used at the marine engineering firm of Dunsmure and Jackson, Govan.

© Royal Commission on the Ancient and Historical Monuments of

Scotland. Licensor www.scran.ac.uk

This photograph shows similar planing machines at work at the Tullis factory in Clydebank.

You can see the blur of the moving table on the centre machine.

AUDIO: Daniel Mackay describes this machine

Long Gap-Bed Lathe

This lathe by the famous Scottish firm of John Lang and Sons is almost 7 metres long. It was built around 1900.

A gap-bed lathe has part of the bed of the lathe cut away so that it can shape larger workpieces than usual without the lathe itself getting in the way.

A long lathe would be used for shaping long components such as drive shafts and connecting rods for steam engines. This particular lathe is believed to have been used in a textile mill in the Scottish Borders.

Langs of Johnstone were famous throughout the world for their machine tools for almost a century.

Back-Geared Screw Cutting Lathe

This lathe by Langs of Johnstone was used at Dumfin Sawmill at Glenfruin, near Loch Lomond.

A back-gear slows the speed of the lathe in relation to the speed of the belt that drives it. Reducing the speed increases the power so that the lathe can make deeper cuts.

The stepped cone allows the operator to vary the speed of the lathe by moving the drive belt to different steps on the cone. A cone of the same size, but reversed, is attached the line shaft that drives the belt.

Dumfin sawmill was leased by the Taylor family for about a century until 2012.

The mill was powered by water until 1957. The hub of the main waterwheel is on display at Summerlee near the colliery engine house where its construction can be compared to that of the flywheel of the 1810 Newcomen engine.

This engraving from an engineering manual shows the names of the different parts of a typical screw-cutting engineering lathe. Click on it to enlarge.

Gear Hobbing Machine

This American machine is designed to cut the teeth of gear wheels.

The cutting tool that you can see is called a ‘hob’. The gear wheel into which the teeth are to be cut is fitted onto the spindle in the middle of the turntable in front of the hob.

The machine was used in the Coatbridge works of Anderson Brothers from the 1930s. One of the engineers there, Jimmy Houston, used this machine to build the miniature traction engine ‘Tigger’ which is now at Summerlee

This illustration from an engineering manual shows a similar machine cutting the teeth of a bevelled gear wheel. You can see that the hob of the machine is angled to match the angle of the teeth it is cutting.

Curling Stone Machines

These unique machines were used to make curling stones at the factory of Andrew Kay of Mauchline.

Both were built by Andrew Barclay and Sons of Kilmarnock to designs supplied by James Wylie of Kays. Barclays were a well-known engineering firm and locomotive builder - they made one of the locos you can see in the colliery at Summerlee Museum.

Curling is thought to have originated in medieval Scotland and has strong connections with North Lanarkshire. In fact the earliest purpose-built curling pond is at Colzium House near Cumbernauld and Kilsyth Curling Club is the world’s earliest.



© British Geological Survey / NERC. All rights reserved.

Licensor www.scran.ac.uk

 The granite for curling stones was traditionally quarried from Ailsa Craig and today the running surfaces of the stones continue to be made from the stone. Kays have exclusive rights to the stone from Ailsa Craig: it was last quarried in 2002, giving a large enough supply to last until at least 2020.

Boiler Shell Machine

This machine was used to turn and trim boiler shell plates in the Sheepford Boiler Works, Coatbridge.

After being shaped in the plate bending rolls the curved boiler plate was clamped onto the rotating table of this machine and turned against a static cutting tool.

The machine is a vertical lathe – just imagine a typical engineering lathe stood on end, the principle is exactly the same.

This drawing of a Hudson Patent Water Tube Boiler is from the Thomas Hudson and Company Archive which is held at North Lanarkshire Heritage Centre, Motherwell.

Click on the image to see it at a larger size.

Vertical Plate Bending Rolls

From Thomas Hudson and Company’s Sheepford Boiler Works, Coatbridge.

Known as ‘pinch rolls’, these powerful rollers were used to shape the plates used to make boilers.

The forward roller could be lifted vertically by a crane and then shifted backwards in stages to increase the curvature of the boiler plate as it was slowly rolled back and forth between the rollers.

© Royal Commission on the Ancient and Historical Monuments of Scotland.

Licensor www.scran.ac.uk

You can see in the photograph the overhead line shaft that drove the rolls via a thick belt drive. By the time this photo was taken the machine was no longer in use.

Plate Edge Planer

This huge horizontal planing machine was used to trim the edges of the large steel plates used in boilers.

Boilers could be very large and had to be strong. This meant it was better to use large steel plates so that fewer joins were needed.

The flat steel plate was clamped into the planer and then the cutting head slowed moved along to cut it. The machine was driven by a belt from an overhead line shaft. Looking at the machine you can see the drum where the belt attached on the right: in fact there are three drums, one to make the cutting tool go left, one to make it go right and one to put the machine into neutral.



© Royal Commission on the Ancient and Historical Monuments of Scotland.

Licensor www.scran.ac.uk

This particular plate edge planer was built in Glasgow around 1890 by the little-known engineering company of Crow Harvie. It was used in the Sheepford Boiler Works of Thomas Hudson and Company as shown in this photograph.