|
|
John Lang & Sons
| Name | John Lang & Sons |
| Ortssitz | Johnstone (Schottl) |
| Art des Unternehmens | Maschinenfabrik |
| Quellenangaben | [McLean: Local industries of Glasgow and the west of Scotland (1901) 47] [Institution of Mechanical Engineers (1895) 526] |
| Zeit |
Ereignis |
| 1874 |
Gründung |
| Produkt |
ab |
Bem. |
bis |
Bem. |
Kommentar |
| Drehbänke |
1895 |
[Inst. of Mechanical Engineers (1895) 526] |
1901 |
[McLean: Local Industries] |
als Spezialität |
| Werkzeugmaschinen |
1895 |
[Inst. of Mechanical Engineers (1895) 526] |
1901 |
[McLean: Local Industries] |
|
| Zahnradherstellungsmaschinen |
1895 |
[Inst. of Mechanical Engineers (1895) 526] |
1901 |
[McLean: Local Industries] |
1895: für korrekte Kegelräder-Herstellung. 1901: "automatic gem cutter" |
| Zeit |
gesamt |
Arbeiter |
Angest. |
Lehrl. |
männl. |
weibl. |
Kommentar |
| 1895 |
200 |
|
|
|
200 |
|
ca. 200 |
| ZEIT | 1895 |
| THEMA | Beschreibung |
| TEXT | These works were erected in 1874, and since then have been steadily growing, so that additional ground has had to be acquired, on which are being erected show rooms for stocking larger tools than can be accommodated in the present buildings. Lathes of all kinds from 6 to 20 inches centres constitute the special work here produced, and large numbers of these and of machine-tools are always in stock and in progress. The machine shop is well equipped with tools of the latest invention.
These works were the first in the country to adopt machine-cut teeth in all gear wheels used in the manufacture of lathes and machine-tools; and the plan has been further extended to cutting the teeth in all racks by machinery. A notable feature in the lathes is what is known as Lang's handle feed-motion, which enables the workman to change the rate of sliding or surfacing feed by the simple movement of a handle within easy reach. It is applied to all lathes which are self- acting by shaft, and to all screw-cutting lathes which have self-acting motion independent of the screw. Specially sensitive levels and measuring machines are used for adjusting the tools in the works, and spindles can be turned truly round with accuracy to one ten-thousandth of an inch. The gear-cutting department has about twenty machines in constant operation, cutting teeth in spur, bevel, worm, and spiral gears, and in racks. These machines have been manufactured in the works, and most of them are entirely automatic in their action. The latest addition to this department is a machine for cutting the teeth in bevel wheels theoretically correct. |
| QUELLE | [Institution of Mechanical Engineers (1895) 526] |
| |
| ZEIT | 1901 |
| THEMA | Beschreibung |
| TEXT | A few years' trial was given to the existing condition of the trade tinder which toolmakers undertook to make lathes, planes, drills, shapers, as well as specially designed tools to suit customers' requirements. Realising, after five years' experience, the disadvantages of the system, the firm decided to concentrate their energy and attention on the systematic manufacture of lathes as their leading speciality. Among the first special machines put down to perfect their lathes was a universal automatic gem cutter. Machine cut wheels were found to be so advantageous that they decided to cut every wheel and rack which left their works. They claim to be the first firm of tool makers in this Country which adopted this as a system. At present the firm has over two dozen machines cutting spur, bevel, worm wheels, and racks for the trade generally, as well as for their own requirements. Owing to the steady growth of their business the Messrs. Lang have found it necessary to secure about fifteen acres of ground adjacent to iheir present works. A railway siding is in progress for convenience k hAndUng riw materids. A new fotmdry, 260 feet by l60 feet, has recently been erected. It is fitted with electric cranes, electric light, gas fnmace for stoves, moulding machines, and all np-to-date appliances. About 450 men are employed in the works. The Messrs. Lang find their chief market at home, where first-class lathes have been in demand for many years, but they also send a good many of their specialities to the Continent and the colonies. The members of the firm take pleasure in showing visitors around their works at all times, and to engineers the visit is generally an interesting one, as their works are fitted throughout with the most modem machine toob available. |
| QUELLE | [McLean: Local industries of Glasgow and the west of Scotland (1901) 47] |
|
