US1700599A - Process for making type bars - Google Patents

Description

terial.

i impression.

Patented Jan. 29, i929.

are A. .ad ...j

ASSIGNMENTS, To cHocoLar 'roRLER HOLDING ce., scHArFHAUsEN, swrrzER-LAND, a rin-iii.

AirrrENeESRLLsentirai,v or

rRocEss 'roR MAKING-@Yen BARS.'

Application filed October 13, 1923, Serial No. 668,363, and. in Germany 'Getoberl7 1922.

This invention relates to tyiebars for typewriting machines-and more particularly for line by line writing machines and a proc,- ess for producing the saine. The invention relates' especially to typebars with a row ol"` existing type patrices is formed and an im` pression is taken therefrom with plastic ina- A typebar is then cast on the said The types of which therows of types are formed may be of any preferred kind, as for example cut or struck types, or types produced by a galvanoplastic process. In another way the invention may be per- Y formed in the following manner: Any exist-V ing cast or engraved individual matrices are arranged in a row and placed in a mould, in which the typebar is east by the die casting process. The individual patrices or matrices may be spaced by individual spacing members or any other preferred spacing means.v

The invention is shown for example in the drawing, in which Fig. 1 represents a row of matrices spaced apart by wedge-shaped spacing members and held together by a suitable holding means, the 'typebar being cast upon the matrices and spacing members.

Fig. 2 illustrates a'roiv of type patrices spaced by spacing members and held together in a suitable manner so as to form a row of patrices from which an impression is taken with plastic *material j Fig. 3 is a transverse section of Fig. 2 on the line A-B, the lower end of the type being broken'away.

4 shows a ytop elevation otatypebar 4 .formed on4 a row of matrices Fig. 1. y -eferring to thel drawing, 1 in Fig. 1

according to are individual matrices which are spaced has thus been formed it is placed in a suit-' able mould and a typebar `is caston the said row by means of the jet casting process.

lVhen the typebar has thus beencast the top wedge-shaped ends of the spacing incmbers 2 oim notches in the typebar a. The Y notches are adaptd to beengaged by alining means for lining up rowsot types on differ-- ent typebars. l

Fig. 2 illustrates in which individual patrices in the form of `types 5 and spacing pins or members 6 with trough-shaped tops are employed. The

types 5 with, their spacing members 6 are held together iii 'a row by terminal holding'l members 7. YWhen a row of spaced patrices has thus been i'orined, an impression is taken therefrom with plastic material 8, this iir 1.A 'pression then forming a multi-type matrix upon which a typebar, indicated in Fig. 2 in ybroken lines, may be east by the die casting process. The matrix Smay consist of plas- Vter of Paris,`which, after the impression has beenl formed vin it by the patric'es, may be coated with graphite upon which a thin layer ofV metal is deposited by electro-deposition. l

I claim: Y f

1. A patriX typebar for typewriting machines comprising a row of different die cast patriX characters of substantially equal width and with the top of one character dis-` posed adjacent to the bottom of another.

2. A die cast patriX typebar for typcwriting machines comprising a row yof dit' ing disposed adjacent to the bottomfoi' another. Y

4. The process for-producing typebars for typewriting machines', which process consists in forming a row of different matrix characters of substantially equal width, wherein the top of one character isadjacent to the bottom of another, in providing projections between each two matrix characters a modified arrangement 5. In the process according` to claim 4L, the

provision of Wedge-shaped projections whereby wedge-shaped notches are produced on the character-bearing side of the typebar.

6. The process of iroducing` typebars for typewrtingg` machines, lwhich process includes the forming of a row of different ma- Y triX characters by. arranging diiiierent individual patriX characters in a roW with interposed spacing means between each ytwo patrix characters, said spaeing'means forming the said projections, the making` of an signature.

impression of said row of matrix characters in plastic materia, and the cast-ing of a typehar from said impression by the dieeasting process.

7. The process of producing typebars for typcwriting machines, Which process includes the forming of a row of different matrix characters by arranging different individual patrix characters in a row With in terposed troughshaped means, the making of an impression of said row of matrix characters in piastic material, and thefcasting of a typebar from said impression by the die-casting process. in testimony whereof I have aHiXed my WERNER SCHFFER.

Images