Castlecary Fireclay Company Limited, Castlecary, Cumbernauld.

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Castlecary Fireclay Company Limited, Castlecary, Cumbernauld.

27/10/1883 – Paisley & Renfrewshire Gazette – Scotch bankrupts – William Logan, fire clay manufacturer, Castlecary Fireclay Works and residing at Gladstone Cottage, Lenzie wither as William Logan or trading as William Logan and Co, Castlecary, Cumbernauld or as the Castlecary Fireclay Company, Castlecary near Glasgow



Below – 06/08/1884 – Castlecary Fireclay Company – Court action Wm Dixon Limited, Ironmongers sued Hugh Martin Senior, Coatbridge and others including William Logan for £108 6s for unpaid coal.

18/07/1885 – Glasgow Herald – Mary Ann Bryan or Martin V John William Burns. In this section John Wm Burns of Kilmahew and Cumbernauld sought to hold the widow and executrix of the late Hugh Martin snr, ironmaster, Coatbridge, liable to £200 as the full years rent said to be due under a lease held by her husband of certain fireclay seams on the pursuers lands. For the defender it was maintained that on a right interpretation of the lease the deceased’s tenancy of the fireclay field ceased on his death and that no liability for rent after that event attached to the defender.

The Lord Ordinary Trayner, in deciding the case said the original lessees were Mr Wm Logan and Mr Hugh Martin, SNR, and the death of the latter had left Mr Logan the sole tenant under the lease. In ordinary circumstances the liability for the rent would follow the right the privileges conferred but in this case the pursuer maintained that the defender was liable for the rent sued for, and the whole rent due under the lease in respect of its special terms, one clause providing that the lessees bound themselves and their respective heirs and successors conjunctly and severally to pay to Mr Burns teh sum of £200 yearly under the lease. His Lordship accordingly pronounced decree for the sum sued for with expenses.

The defender appealed to the Second Division, and their Lordships today, Lord Rutherford – Clark dissenting, reversed the decision of the Lord Ordinary and found expenses due to the defender on the ground that the clause did not bind the executors of the predeceasing tenant. (Note – SBH – Could the  fireclay seams referred to be those worked by the Castlecary Fireclay Company Limited)

15/12/1886 – Falkirk Herald – The Castlecary Fireclay Co beg to inform farmers that they have re-opened the working of lime stone at Castlecary and can now supply lime shells.

Below – 1890 – Castlecary Fireclay Works 2 Exchange place, Middlesbrough; Joseph McLauchlan, agent


Below – 1896 Advert Castlecary Fireclay Works


Below – 11/02/1910 – Kilsyth Chronicle – Weirs Castlecary Fireclay Co Ltd in Court action with a firm from Canada over an alleged Agency agreement to sell Castlecary bricks in Canada.

05/09/1919 – Kilsyth Chronicle – New Companies registered last week – Castlecary Fireclay Company (Limited). Capital £100,00 in £1 shares. To acquire and carry on the existing undertaking. Subscribers John J McMurdo, Solicitor, Airdrie, John Weir, Brick Manufacturer, Castlecary; James Winning, C.A, Glasgow; Robert Dunlop, Brick Manufacturer, 45 Renfield Street, Glasgow; Andrew Weir, Brick Manufacturer, Castlecary; J.N. MacMurdo, Brick Manufacturer, Airdrie, J.C.McGregor, Solicitor, Airdrie.

05/09/1919 – Kilsyth Chronicle – New Companies registered last week – Faskine  and Palacecraig Brick and Coal (Limited). Capital £10,000 in £1 shares. Private Company. Subscribers John J McMurdo, solicitor, 10 Bank Street, Airdrie, and John Weir, brick manufacturer, Castlecary by Bonnybridge.

1920 – 21 – Castlecary Fireclay Co., Ltd., firebrick furnace block manufacturers, Castlecary, Palacecraig Colliery and Faskine Brick Works, Airdrie. Office, 45 Renfield street. Tel. Nos , 3406 Central and 12  Dullatur; telegrams, “ Weir, Castlecary, Glasgow.”

13/05/1921 – Kirkintilloch Gazette – Housing – Kirkintilloch –  The Castlecary Fireclay Company Limited have reported that they are not in a position to offer bricks from the Faskine Works, Airdrie. The housing committee are to inspect houses built with concrete at Wardie, Edinburgh.

26/08/1921 – Kirkintilloch Gazette – Fireclay workers are beginning to feel the effects of dullness in trade. On Wednesday workers had an idle day.

Below – 10/02/1922 – Kirkintilloch Gazette – Court action Weir Castlecary FireClay Co Ltd  V ex works manger Robert Stewart.

15/11/1922 – Robert Weir, Bowhill appointed manager at Castlecary Brick and Fireclay Works belonging to Messrs Stein and Co. Mr Weir was undermanager at Kinglassie Colliery previous to his appointment at Bowhill.

08/09/1923 – Falkirk Herald – Short time – The workers employed at the Castlecary Fireclay Company Works are, owing to scarcity of orders, at present on short time. For some time past the miners have been working 5 days a week and now the above-ground employees are only receiving 4 and 5 days work per week.

17/01/1936 – Kirkintilloch Gazette – Messrs Weir & Co, Castlecary Fireclay Works, on Friday night entertained their employees to a supper and dance in Castlecary Hall where a company of 170 partook of an excellent repast presided over by Mr J Weir, and then tripped it joyously for some hours to the strains of the Metronome Band with Mr W Bremner supervising the proceedings.

1938 – Castlecary Fireclay Company Limited, Castlecary Station, Bonnybridge, Stirlingshire; mine name – Castlecary – fireclay; Situation – Castlecary Station; Manger – Hugh McPhaill; 23 employees below ground and 8 above.


Castlecary Fireclay Limited letterhead trademark


The Castlecary limestone formations are well known geologically, and it was to work these as much as the fireclays that Alexander Weir built the Castlecary Fireclay and Lime Works which by 1898 had 5 beehive kilns for firebricks and 3 shafts for limestone.

Castlecary Fireclay and Lime Works 1896

Castlecary Fireclay Company Limited – Established during the late 19th century by Alexander Weir and incorporated in 1909. Works in Castlecary known as Weir’s Castlecary in order to distinguish from Stein’s Castlecary Works which were nearby. Acquired Faskine & Palacecraig Brick & Coal Co in 1918. Taken over by General Refractories of Sheffield in 1936 and became part of the Glenboig Union Fireclay Co. Works closed in 1968

The Lugar ironworks worked up until 1928 and had 5 blast furnaces. They were dismantled in 1938, when it was noticed that the hot- blast stoves were filled with Weirs Castlecary brand firebricks

Site names – Castlecary Fireclay and Lime Works.

Address -Alexander Weir  Castlecary House and Exchange Place, Middlesbrough.


The Company was incorporated in 1909, with a capital of £22,000. Alexander Weir and his son Robert, held the controlling interest, but George Chisholm, an iron merchant of Glasgow, and John Maxwell, a solicitor from Falkirk, were also directors. The profit record has survived, but its most disappointing with the preference dividend  only being paid in the first year. Alexander Weir died in 1917, and as soon as the war was over, the company was reconstructed under the Chairmanship of John McMurdo who became the principal shareholder. At this time too, the Company bought the Faskine and Palacecraig Brick and Coal Company with coilleries on the North bank of the Monkland Canal. The Faskine brickworks was re-equipped with new machinery and could produce 16, 000 bricks a day, but it was the coal that made the profits. Andrew Weir resigned as Director and Company Secretary in 1920, as his health had been undermined by his war service in France, but his brother, Robert, continued as Managing Director. A second Belgian kiln was built at Castlecary and machinery installed to make 35, 000 bricks a day. The Company was making some profits now, but the Income Tax Inspector was claiming £4,000 in excess profits duty. Today with our stricter financial control, it is amusing to read in the Directors minutes that the Company Secretary was instructed to tell him that no money was available to pay such a sum as all production was going into stock, and that there were few sales for cash. Stocks had risen to £15,000 and with capital expenditure on plant, the preference dividend had been passed. Clearly the Tax Inspector had to wait his turn.

Profits slumped in 1922 and 1923 partly due the coal strike which left the Company with only 1 weeks supply at the kilns. At this critical time the Works Manager, John Weir and his family contracted scarlet fever and diptheria, a reminder of uncertainty of life before the days of modern medicines.

There was one windfall in 1925, when the Company received £10,000 for their claims against the London & North-Eastern Railway for the fireclay they had to leave unmined under the Castlecary viaduct. The claim had been brought under the Mines ( Working Facilities and Support) Act 1923 and while £600 went to the Carron Company for their Hirst Coal, and another £2,400 to the mineral landlord, the remaining £7,000 was most welcome.

The mining of limestone ceased after the 1914 – 1918 war, and the shaft kilns were demolished. In their place a third and larger Belgian kiln was built with 19 chambers, compared with the 12 and 14 chambered kilns already working. Castlecary now concentrated on firebricks for the iron and steel industry. Castlecary was the main brand in the 35/37% alumina range, and Weir Brand was used for the lower 27/30% alumina grade up to 1932 when GEM brand replaced it. The Weir brand was then used for a new 42/43% alumina brick.

Exports of fireclay and firebricks became big business from 1927 onwards, particularly to Italy. Payments were not received promptly and the Company was owed £4,000at one time.  Discussions took place and the Italian Company offered them a holding in their Genoa works to be paid for by a reduction in the price of fireclay from 15/-d (75p) to 10/-d (50p) per tonne on the next 10,000 tons. It was an ill conceived agreement as the Castlecary Fireclay Company could not afford the reduction in the cash flow for a shareholding unlikely to pay a dividend. A large £14,787 order was received from Russia in 1927, but again cash flow suffered as only 30% was paid on shipment and the balance had to wait 18 months for payment. It was not surprising that the bank overdraft rose to £12,000 and now the inland revenue were demanding immediate payment of income tax, corporation tax and excess profits duty.

The post war depression was now biting hard and by May 1932 only 1 kiln was working and that at the slowest possible schedule. The Directors took a 25% salary cut, while staff and employees suffered similar cuts. All dividends were passed. These hard times continued and it must have been with considerable relief that the Chairman received an offers for the Company from General Refractories of Sheffield. The offer was accepted 1936, and the Company became part of the Glenboig Union Fireclay Company, their Scottish subsidiary.

The Castlecary Fireclay Works continued in production in the post war years, when it was known as Weirs Castlecary to distinguish it from Steins Castlecary Works across the road. Production was about 2,200 tons a month with 170 men and workmen employed. In addition there were 32 miners. The Works were closed in 1968 when most employees were offered work at Steins Castlecary Works. The site was cleared in the 1970’s. Source The Scottish Refractory Industry 1830 – 1980

Below – Weir’s Castlecary Brickworks. c.1967

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Castlecary firebrick analysis

Castlecary firebrick analysis


Some advertising from a Castlecary catalogue …….  Castlecary fire bricks are acknowledged to be of the finest quality for furnace building.

When high and and long sustained heast and sudden changes of temperature have to be contended with, Castlecary bricks are unsurpassed. They are capable of withstanding very high temperatures without melting or splitting and practically without expansion or contraction.

The thermal stability of Castlecary fire bricks corresponds to 36 Seger cone – 1700 degrees C or 3254 degrees F.

Castlecary fire bricks are  extensively used in Ladle Lining  (basic and acid), Regenerators, heating, soaking, mill, puddling and forge furnaces. We specialise in blast furnace block, Ford and Moncur and Cowper hot blast stove bricks.

In rapid steaming boiler arches where heats are extreme, either from stoker firing or oil firing, the very best results have been obtained with Castlecary material.

Glass works, gas works and chemical works will find Castlecary fire clay blocks and special fire bricks admirably suited for their temperatures.

Oil fuel furnaces built with Castlecary fire bricks have given wonderful results in land and marine furnace and locomotive arches.

Electric furnaces constructed with our special Castlecary Alumina bricks have given excellent results. A long life has been obtained in these furnaces carrying very high heats. We can with all confidence recommend them for this purpose. They are high in alumina, evenly balanced with silica and exceptionally free from iron or other fluxing material.

In laying first quality fire bricks it is most important to use first quality fire clay. If the clay is inferior in quality to the bricks it will melt and run long before the bricks are affected and leave an open joint where flames and slag can most easily attack the lining.

Use first quality fire clay – use as little as possible by laying the bricks skin to skin.

We invite you to fully investigate the possibilities of Castlecary and Castlecary Alumina fire bricks for the economical running of your furnaces.


CASTLECARY –  Castlecary Fireclay Co. Ltd (c1919) – furnace lining brick manufactured by the Castlecary Fire clay Company under the ownership of Alderman MacLauchlan of Middlesbrough.A good variety of bricks were imported or shipped into California. In the early days, foreign bricks were brought to California as ship ballasts. These were dumped on the shore, and the boats refilled with California wheat for the return trip home.


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