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To fix the Hammond linespacing

To fix the wobbly linespacing of the Hammond Multiplex typewriter, the rear-roller was covered with a single layer of heat-shrink tubing. The rubber of the rollers on most Hammond machines has aged...

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Spacing of 9.5 characters per Inch

Being easily distracted, started taking apart a recently acquired little 3-bank typewriter for a proper cleaning. When scrubbing the escapement rack, noticed that it had a number stamped in it: 2,67A...

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Putting the little 3-bank together again (and a nickname)

After cleaning the bits, put together again quickly. The Klein-Adler with lots of sliding parts in the typing-mechanism is vulnerable to dirt - a thorough cleaning and removal of decades of patina...

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Klein-Adler with an extra trick

This cleaned-up little Klein-Adler has an extra lever compared to most others. The lever at the left is carriage-release, that lever at the right however is less usual. Couldn't find any other...

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Attempting a repaint of a Dalton Adding Machine

They are not rare and today certainly not desirable or collectable, judging by online offers - the later-models Dalton adding machine are pretty big and 'boring' machines with, well, limited...

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Dalton Adding Machine serial numbers, estimated agelist

An estimated, approximate agelist for Dalton Adding Machines; serial numbers are start-at for the year.The ~1927 issue of Business Machines and Equipment Digest contains an estimated serial numbers...

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New typeshuttles for the Hammond - How to make

After some experimenting (and many failures), the workflow for creating new Hammond typeshuttles is starting to form. A new Hammond typeshuttle is assembled from several parts, just like the original....

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Fall 2024 typewriter safari

Last week, we did a tour of the local thrift stores - and for the first time in ages there were interesting typewriters! Right at the start, first aisle, this spread of four machines immediately caught...

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Progress in refurbishing a Dalton Adding Machine

The 'surplus' machine is mostly assembled again - and the side-frames are back, painted black.As the machine shows promise of turning out nice, decided to have another try at repairing the damper or...

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Folding Corona - as simple as closing a book

(Full-page advertisement from the February 1920 issue of Popular Science, page 153.)Or is it.It's intuitive and folding over works. Just like closing a book. Unlike a book however, the Corona should...

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Good advice for the Hammond typewriter

When delivered new in the 1910s, a Hammond typewriter would have had a 'Special Notice' card placed on its keyboard-card tray. It contains some useful advice for typing on the Hammond and especially on...

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Finishing the refurbishment of a Dalton Adding Machine

The surplus wreck Dalton is now refurbished, quite the transformation from what it was :)The machine was cleaned inside and outside. The brightwork was de-rusted and all outer parts re-painted. With a...

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How to operate the Dalton Adding Machine

The Dalton Adding Machine can add, but also subtract, multiply and more. How to operate it is not always immediately obvious today from just looking at the machine. Below will show how to do some of...

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Pencil leads and fractions

Two surprise thrift store finds. The first is a Koh-I-Noor box of red pencil leads. Well, a box with one red pencil lead - it is however still in one piece! The card sleeve-box with wooden frame...

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What are front left foot numbers on an Underwood 5 ?

The Underwood 5 typewriter has the serial number stamped on the frame-top near the right spool. The number itself is generally followed by a type-designation, so the pattern is xxxxxx-5 for a regular...

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American National 14-20 screw thread and 7/8th Inch

The rubber 'stopper' feet of Underwood 5 typewriters are almost always 'gone'. The rubber is generally hard and the weight of the machine has compressed the foot. This is bad, not just because the...

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New spacebar for an Oliver 3 typewriter

The ends of the spacebar of an older Oliver typewriter are often broken off. The spacebar is made of a 'plastic' material and the ends are relatively thin and exposed. Not surprising then that the...

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Swapping-out cellulose acetate keys on a Comptometer

To start, five columns of white keys for a Comptometer.These are genuine, old keys. Not new reproductions, but relatively good originals. They do have some yellowing and have started to deform, but...

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One mystery part - mildly disconcerting

After taking it apart and putting it back together, one spring that won't fit anywhere. This Blickensderfer 7 was also one key-lever spring short. The odd thing is, that the remaining spring will not...

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Excavating (or destroying?) a layer of history on a machine

This particular Underwood 5 was bought locally, originally meant as a reference machine to help with the restoration of an older 1920 Underwood 5.This machine was not only a newer 1928 version, it also...

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Manufacturing process for a new Blickensderfer type wheel 407

How to make a new type wheel for the Blickensderfer; in this case a reproduction 'Small Roman' type wheel catalogue number 407, codename 'Table'.To start with, take a 3D-model of the type wheel. This...

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Messing-about making new Blickensderfer ink rolls

The original ink rolls of my Blickensderfer were hard and dried out. Whilst it is written on The Internet that these can be revived, decided instead to have a go at making new ink rolls. It is also...

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Designing new type wheels for the Blickenserfer typewriter

It is possible today to create new type wheel designs for the Blickensderfer typewriter! With readily available software tools and common, low-cost 3D printing technology, functional type wheels...

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First time the covers are off in a while, it shows

When it looks like this on the inside, it's been a while since anyone removed the covers.This loose, woolly dirty dust must have taken some time to build up. It will need to wait in the shed, until a...

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Brief glimpse at the Blickensderfer lettering in gold

The case of my Blickensderfer 7 is structurally good, but was given a dousing in creosote (?) some time in its life. This had turned the outside to a sort of 'burned black'. The fittings were also...

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