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Rubber Type Set: Moulded from Printer's Type in a Plaster Matrix and Cut Apart (Sloane, 1891)
Emma

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Emma

8. نوفمبر 2026SE
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Rubber Type Set: Moulded from Printer's Type in a Plaster Matrix and Cut Apart (Sloane, 1891)

Single rubber letters and figures for stamping, copied from printer's type. T. O'Conor Sloane (1891) sets up the type, takes a plaster matrix of it, presses uncured rubber sheet onto the matrix inside a shallow frame with a plunger, cures it at 284 °F (140 °C) for half an hour, and cuts the block apart into single type with a wet knife. High quads and spaces between the letters keep the face of the block level, so the letters stand up from a smooth surface. Source: T. O'C. Sloane, Rubber Hand Stamps and the Manipulation of Rubber (1891), Ch. VI pp. 73-76, matrix Ch. V pp. 53-55. Picture: his type mould, p. 74.
متوسط
Unknown

التعليمات

1

Read Sloane

"The type which are to be copied are set up on a level base or imposing stone, and quads or spaces are put between them. ... After oiling the faces a matrix is produced exactly as described for stamps. Before it has set quite hard the plaster or cement is cut off so that it will just fit within a little 'flask' or frame."
2

Set up the type

Set up the letters and figures to be copied on a level stone or piece of marble, with high quads and spaces between them (or push the spaces up level with the shoulders of the type). Lock them in a frame of two wooden strips screwed together at their ends, and lay distance pieces each side reaching about 1/8 in. above the type faces.

الأدوات المطلوبة:

حروف طباعة بارزة مفردة (طقم)حروف طباعة بارزة مفردة (طقم)
كتلة رخامكتلة رخام
لوح خشب صلبلوح خشب صلب
براغي خشببراغي خشب
3

Make the plaster matrix

Dissolve dextrine in water until the solution is as thick as thin syrup and mix dental (or common) plaster of Paris with it to a rather stiff putty. Spread it 3/16 to 1/4 in. deep on a flat, true iron plate a little larger than the type, smoothing it with a knife. Oil the type faces with olive oil and wipe the excess out of the hollows with blotting paper. Turn the plate over and press it steadily down onto the type until it strikes the distance pieces; after about ten minutes lift it off.

الأدوات المطلوبة:

جبس باريسجبس باريس
دكستريندكسترين
ماءماء
لوح حديدلوح حديد
سكين مطبخسكين مطبخ
زيت الزيتونزيت الزيتون
ورق نشّافورق نشّاف
4

Make the flask and plunger

Before the plaster has set quite hard, cut it so that it just fits inside a small frame (the flask) of wood, about 1/2 to 5/8 in. deep and large enough to take the whole face of the matrix. Cut a block of wood to fit closely inside the frame like a plunger, with shoulders or cross pieces that stop it at the right depth. Fix the matrix plate to the bottom of the flask with screws. The flask's other sizes are not given (unknown).

الأدوات المطلوبة:

لوح خشب صلبلوح خشب صلب
كتلة خشب صلبكتلة خشب صلب
سكين مطبخسكين مطبخ
براغي خشببراغي خشب
أبعاد غير معروفةأبعاد غير معروفة
5

Fill and press

Dust the mould and matrix well with talc. Fill the flask with uncured mixed rubber sheet (thick sheet is best, but scraps fuse together), put the plunger on, and press the whole between two blocks of wood screwed together with long wood screws.

المواد لهذه الخطوة:

خليط مطاطيخليط مطاطي1 fills the flask

الأدوات المطلوبة:

مسحوق التلكمسحوق التلك
كتلة خشب صلبكتلة خشب صلب
براغي خشببراغي خشب
6

Heat, top up and cure

Heat the whole in a hot-air chamber. When it reaches the boiling point of water, 212 °F (100 °C), take the flask out and look at the plunger: if it has gone down to its seat without forcing out any rubber, add more rubber. The softened rubber should ooze out round the plunger. Press again and screw the press down, then put it back in the hot chamber, raise the heat to 284 °F (140 °C) and hold it there for half an hour.

الأدوات المطلوبة:

فرنفرن
كتلة خشب صلبكتلة خشب صلب
براغي خشببراغي خشب
7

Cut the type apart

Take the mould out, let it cool and open it: the block of type comes out with the letters on one face. Cut it apart into single type with a sharp knife kept wet, worked with a sawing motion. One good matrix can be used many times.

الأدوات المطلوبة:

سكين مطبخسكين مطبخ
ماءماء

المواد

1

الأدوات المطلوبة

15

CC0 ملكية عامة

هذا المخطط مُصدر بموجب CC0. يحق لك نسخه وتعديله وتوزيعه واستخدامه لأي غرض، دون طلب إذن.

ادعم الصانع بشراء منتجات عبر مخططه حيث يكسب عمولة الصانع يحددها البائعون، أو أنشئ نسخة جديدة من هذا المخطط وضمّنه كرابط في مخططك لمشاركة الإيرادات.

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