DE392793C - Pit stamp - Google Patents

Pit stamp

Info

Publication number
DE392793C
DE392793C DESCH66652D DESC066652D DE392793C DE 392793 C DE392793 C DE 392793C DE SCH66652 D DESCH66652 D DE SCH66652D DE SC066652 D DESC066652 D DE SC066652D DE 392793 C DE392793 C DE 392793C
Authority
DE
Germany
Prior art keywords
pit stamp
pit
stamp
under pressure
filling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DESCH66652D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Priority to DESCH66652D priority Critical patent/DE392793C/en
Application granted granted Critical
Publication of DE392793C publication Critical patent/DE392793C/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/02—Non-telescopic props
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/18—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Forging (AREA)

Description

Grubenstempel. Die Erfindung betrifft einen Grubenstempel. Das Neue besteht in einem dünnwandigen Rohr mit einer unter Druck eingebrachten und gehaltenen Füllung.Pit stamp. The invention relates to a pit punch. The new consists of a thin-walled tube with one that is brought in and held under pressure Filling.

In der Zeichnung ist die Erfindung beispielsweise in zwei Ausführungen dargestellt. Die in Abb. i im Lang- und in Abb. 2 im Querschnitt dargestellte Ausführung zeigt ein Rohr a, dessen Füllung b durch den eingeschraubten Stöpsel c unter Druck gehalten wird. Bei der im Langschnitt gezeichneten Ausführung in der Abb. 3 ist der Stöpsel c durch eine aufgeschraubte Muffe d ersetzt. Abb. q. zeigt einen durch den Keil f eingetriebenen und festgehaltenen Verschlußpflock e.In the drawing, the invention is shown, for example, in two versions. The embodiment shown in Fig. I in the long and in Fig. 2 in cross-section shows a tube a, the filling b of which is kept under pressure by the screwed-in plug c. In the version shown in long section in Fig. 3, the plug c is replaced by a screwed-on sleeve d. Fig.q. shows a locking plug e driven in and held in place by the wedge f.

Claims (1)

PATENT-ANSPRUcH: Grubenstempel, gekennzeichnet durch ein dünnwandiges Rohr (a) mit einer unter Druck eingebrachten und gehaltenen Füllung (b). PATENT CLAIM: Pit punch, characterized by a thin-walled tube (a) with a filling (b) that is introduced and held under pressure.
DESCH66652D Pit stamp Expired DE392793C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH66652D DE392793C (en) Pit stamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH66652D DE392793C (en) Pit stamp

Publications (1)

Publication Number Publication Date
DE392793C true DE392793C (en) 1924-04-02

Family

ID=7438915

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH66652D Expired DE392793C (en) Pit stamp

Country Status (1)

Country Link
DE (1) DE392793C (en)

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