Original drawings of Gustav Niemann´s invention (Kaiserliches Patentamt – the original patent in private collection of the author)

On the hottest day of 2022 mercury levels in Berlin’s thermometers hit 37.5°C. That was the official reading. The unofficial ones – as in many places in the city the temperatures exceeded the latter – had both guests and residents perspire profusely and gasp for air in sizzling desperation. And by the look of it, with our climate spinning even further out of control, this year we are likely break that record.

Headgear galore in this 1906 photo of the junction Unter den Linden / Friedrichstraße made by Max Missmann and published “Berlin Leben” magazine. Image in public domain via Zentrale Landebibliothek Berlin.

What you need to survive such scorchers are, first and foremost, water plus protective headgear. The latter has, however, one significant disadvantage: most hats tend to develop sub-tropical conditions inside the crown. You sweat, you suffer and eventually you use the hat to fan yourself with in order to cool down the overheated scalp. But what if your headgear cannot be used for that purpose? If you cannot take it off or if frantic flapping fails to produce the desired cooling effect? A Berlin inventor, convinced he had solved that problem, applied for a patent as early as in 1878.

In the 1870s no respectable person ventured into the public space bareheaded. Only children and the poor would have been seen with no hat or bonnet in the streets. However, although a covered head might have been a marker of one’s social standing (those who could afford a hat, made sure to wear it) but, from the practical point of view, it could also be a blessing and a curse. While ladies’ hats tended to be rather “airy”, providing a tad more ventilation to the often highly decorative (and it itself rather tricky in the heat) hairdos, men’s hats caused their wearers’ scalps to swelter and sweat. The greatest culprit among those headpieces was at the same time the then sacred symbol of Prussian militarism: the Pickelhaube. Its wearers, clad in thick uniforms and marching up and down Berlin’s exercise fields, often ended up feeling unwell und even collapsing. The spring and autumn army manoeuvres on the Tempelhofer Feld (former site of the Tempelhof airport, where the largest Berlin park spreads today) were nothing for the weak-hearted…

Autumn manoeuvres at the Tempelhofer Feld in early 20th century. Author unknown, image in public domain via geschichtsmaterialien.de.

According to Berlin’s 1879 address directory, potential help was to come from Admiralsstraße 15 in today’s Kreuzberg. The neighbourhood where Herr Niemann lived and worked, a stone’s throw from Kottbusser Tor, was also in a walking distance from several famous army barracks. It is, therefore, not unlikely that the engineer saw a sound business opportunity in his venture. Selling a functioning Pickelhaube ventilation system, or what Niemann described as Ventilationseinrichtung für Kopfbedeckung, to the Prussian military would have set him up for a lifetime. It is equally possible that Herr Niemann, professionally active in the field of ventilation anyway (sadly, History largely ignored the undoubtedly fascinating life of Gustav Niemann) simply wished to alleviate the pain of all profusely and uncontrollably sweating hat-wearers.

His invention was meant to offer relief in that air would be able better to circulate between the inside of the hat’s crown and the outside world. A small wind wheel or turbine – with ten wings made of a “light yet sturdy material” – was to be installed on top of the crown. The leather sweatband – which every Pickelhaube was fitted with to make it sit on the head firmly –  was to have small, approximately 1-centimetre wide sections carved out at regular intervals to create small openings. The leather sweatband would be held together by a cleverly inserted wiring. According to Herr Niemann’s computations, the rotating wind wheel inside the hat would have helped transport the “perspiratory vapours” outside, thus preventing draught inside the hat, “conserving” one’s hair and helping keep rheumatism, nausea and sunstroke at bay. As to whether it produced the desired effects, the patent offers no answers. The press, too, failed to report any potential triumphs.

Six months later two other gentlemen, Herr Block and Herr Günther, applied for a patent of their own. Registered under the number 6073 in the same category, it safeguarded the inventors’ rights to a “Sponge wreath – where but several drops of Schnaps [for soaking the sponge with, author believes] would be enough to lower the temperature through alcohol’s evaporation”. Did the sponge and the Schnaps help? Alas, yet again our curiosity must remain unfed and doubting. However, the Schnaps – in whichever form it might have been applied – was guaranteed to bring light, if temporary, relief to the sufferers.

And today? A quick search in the EPO (European Patent Office) databank shows that the exhausting race of human kind against the sweaty scalp has not been decided yet. However, with the next scorcher ante portas and no reliably functioning hat-ventilation in sight, remember: a glass of cold beer, enjoyed in the shade while fanning yourself with a just-read, folded newspaper is a perfectly reasonable alternative. And it’s completely patent-free.

“Berliner Weisse Beer Garden at the Gabriel Jager Brewery in Berlin”, painted by Franz Skarbina around 1878. The painting currently in the collection of Berlinische Galerie.

An abridged German version of the text was published in Berlin’s most popular daily, the “Tagesspiegel”, where you will find my weekly (new stories each Saturday) Berlin-history column “Aus der Zeit”: Kühler Kopf 1878: Ein Belüftungssystem für die preußische Pickelhaube (tagesspiegel.de)

This one is a classic: every real movie villain needs a “Luger”. You can find it in Tarantino’s “Inglorious Basterds”, in “Peaky Blinders”, in “Indiana Jones” and even in Disney productions. It was even featured on German TV yesterday – in another classic: the Ludwigshafen episode of the country’s longest-running and most popular TV crime series, Tatort.

A P08 or a pistol better known as Parabellum (from Latin Si vi pacem, para bellum or “If you want peace, be prepared for war”). A weapon that was a Berlin invention.

Brothers Ludwig and Isidor Loewe were neither the first nor the only nineteenth-century entrepreneurs who began by manufacturing sewing machines and ended up making weapons. The company, Ludwig Loewe & Co KG, set up in 1869/1870 was soon registered in Hollmannstraße 32 in Kreuzberg – the street no longer exists but you will find its traces in the form of a path running along the southern wall of today’s Jewish Museum between Lindenstraßa and Alte-Jakob-Straße.

To pick up the latest trends as well as know-how, Loewe visited the United States. Among the experts he most likely met there at the time was one Hugo Borchardt – soon one of the best German weapons designers, who was employed by Singer Sewing Machine Co. at the time and went on to develop weapons for Colt, Remington, Winchester and Sharps Rifles.

Back in Berlin, it quickly became clear that the real money was not in the sewing and needles but in warfare. After in 1872 the company signed a contract with the Prussian army for arms and ammunition deliveries, sewing machines slowly vanished from the menu.

Old Ludwig Loewe & Co. “Briefverschlussmarke” used since mid-19th century by German companies to seal the envelopes of their business correspondence (Image via Veikkos-Archiv.de).

Isidor and Ludwig contacted Hugo Borchardt, offering him a job in Berlin. He accepted and in 1893, together with his Austrian assistant, they could launch another weapon that enjoys cult status today: the C93. This semi-automatic self-loading pistol fired the starting shot for a revolution in weapon manufacturing.

Borchardt C93 in a case (photo by Hmaag, via Wikipedia)

Its eight-piece cartridge box and toggle-lock recoil action made reloading much easier. But the Borchardt-C93 was not perfect. Borchardt’s assistant, Georg Luger, thought so, too, and began to play with the design in order to improve the pistol’s performance. Born in Austria, Luger, who in addition to German spoke Serbian and Italian and joined Loewe’s enterprise in the early 1890s, perfected the weapon. After in 1896 Loewe merged with Mauserwerke and Metallpatronen AG and began to operate together as Deutsche Waffen und Munitionswerke (DWM), the Luger pistol became a sales hit.

Switzerland was the first to order a batch: in 1900, Parabellum became the ordnance weapon of the Swiss army. Four years later, it introduced in the German Imperial Navy as their “weapon of choice”. This particular model came to be known as P04 (Kriegsmarine introduced it in 1904).

In 1908, Loewe and DWM delivered their Luger as a standard weapon to the German army – that is how the “P08” was born. Several years later, Parabellum became the standard weapon of the German armed forces in World War One and occupied that position until 1938 when it began slowly to be replaced by its improved version, the Walther P38. However, in films, the two share the cult status until this day and are often mistaken for one another (like you truly, not being fluent in pistols, did in the German version of this text written in her weekly column for the “Tagesspiegel – apologies to readers followed😉).

Cutaway of Luger’s pistol in the 1904 patent

Mr Luger, Parabellum’s inventor, who had been a world champion in cost accounting and normalization long before DIN standards were introduced, made a small fortune with his invention: each produced Parabellum brought him 1 Mark and each trigger bar was worth 10 Pfennig. Unsurprisingly, at the end of the First World War Georg Luger was worth well over one million. Unfortunately, like many people at the time, he invested most of it in German war bonds. The fortune and its owner suffered a blow. And it got worse: Germany fell down the financial void known as hyperinflation. Fortunately for Luger, he had invested in the property market before that: he bought Villa Luise, a decent house in a small town just outside Berlin called Fichtenau. This is where Georg Luger, plagued by what felt like a never-ending legal tug-of-war with people who wanted him to surrender his rights to his inventions and patents, spent the rest of his life. He died there in 1923.

If you visit a small, tranquil Friedensau Cemetery in what is Schöneiche bei Berlin today (Fichtenau belongs to it now), his grave is not difficult to find. When there, keep a look-out for a knee-joint of a Parabellum pistol. Thanks to tireless research by a local interest group, the site of Georg Luger’s grave, levelled in 1945, could be found again. The group, supported by generous donations, could install a new tombstone for the inventor. One with a black stone “Luger joint”.

Photo of Luger’s grave taken my the author and her son, Franz, on January 15, 2023.