DE77106C - Compass with measuring scale attached to the head - Google Patents

Compass with measuring scale attached to the head

Info

Publication number
DE77106C
DE77106C DENDAT77106D DE77106DA DE77106C DE 77106 C DE77106 C DE 77106C DE NDAT77106 D DENDAT77106 D DE NDAT77106D DE 77106D A DE77106D A DE 77106DA DE 77106 C DE77106 C DE 77106C
Authority
DE
Germany
Prior art keywords
scale
compass
head
rings
attached
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 - Lifetime
Application number
DENDAT77106D
Other languages
German (de)
Original Assignee
H. SCHWARTZ in Berlin, Arndtstr. 44
Publication of DE77106C publication Critical patent/DE77106C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L9/00Circular curve-drawing or like instruments
    • B43L9/12Dividers

Landscapes

  • Length-Measuring Instruments Using Mechanical Means (AREA)

Description

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. Vorliegende Erfindung betrifft einen Zirkel mit am Kopf angebrachter auswechselbarer und drehbarer Mefsskala, mittelst welcher die Abstände der Schenkelspitzen von einander bestimmt werden.The present invention relates to a compass with a replaceable and attached to the head Rotatable measuring scale, by means of which the distance between the tips of the legs is determined will. Fig. ι und 2 stellen die Verbindung der Zirkelschenkel mit der am Kopf angebrachten Mefsskala dar. Die äufsere Ansicht des Skalakopfes veranschaulicht Fig. 3.Fig. Ι and 2 represent the connection of the compass legs with the attached to the head The outer view of the scale head is illustrated in FIG. 3. Die Skala besteht aus zwei auswechselbaren Mafsringen. Da ein zweimaliges Umdrehen des Skalakopfes erforderlich ist, um den Zirkel von der geschlossenen bis zur völlig geöffneten Lage zu bringen, sind zwei Mafsringe angebracht, deren oberer 0 die Mafse der ersten Umdrehung angiebt, während der untere Ring u die Mafse für die zweite Umdrehung fortsetzt.The scale consists of two interchangeable measuring rings. Since it is necessary to turn the scale head twice to bring the compass from the closed to the fully open position, two measuring rings are attached, the upper 0 of which indicates the dimensions of the first rotation, while the lower ring u continues the dimensions for the second rotation . Der Zirkel kann für jeden beliebigen Mafsstab benutzt werden; es ist nur erforderlich, behufs Auswechselung der Skalaringe die am unteren Theil des Kopfes befindlichen zwei Schrauben α α zu lösen, die daselbst vorhandenen zwei halbringförmigen Plättchen abzunehmen, die Mafsringe herunterzunehmen und durch andere Ringe mit derjenigen Eintheilung zu ersetzen, welche dem gewählten Mafsstab entspricht.The compass can be used for any scale; It is only necessary, in order to replace the scalar rings, to loosen the two screws α α located on the lower part of the head, to remove the two semi-circular plates present there, to take down the measuring rings and to replace them with other rings with the division which corresponds to the chosen scale. Die Schenkelstangen des Zirkels sind so angeordnet, dafs dieselben verlängert werden können, sobald durch Abbrechen der Spitze etc. eine Ergänzung erforderlich werden sollte.The leg bars of the compass are so arranged that they are lengthened as soon as an addition should be necessary due to the breaking off of the tip etc. Patent-Anspruch:Patent claim: Zirkel, gekennzeichnet durch zwei am Kopf angebrachte auswechselbare und den verschiedenen Mafsstabverhältnissen entsprechend eingetheilte Skalenringe, durch welche mittelst Drehens derselben die Abstände der Schenkelspitzen des Zirkels von einander bestimmt werden.Compasses, characterized by two interchangeable and the different ones attached to the head Scale rings divided according to the scale ratios, through which mean Turning the same determines the distances between the leg tips of the compass from one another will.
DENDAT77106D Compass with measuring scale attached to the head Expired - Lifetime DE77106C (en)

Publications (1)

Publication Number Publication Date
DE77106C true DE77106C (en)

Family

ID=349939

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT77106D Expired - Lifetime DE77106C (en) Compass with measuring scale attached to the head

Country Status (1)

Country Link
DE (1) DE77106C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391027A2 (en) * 1989-03-20 1990-10-10 ILCA S.p.A. Compass, particularly for draughtsmen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391027A2 (en) * 1989-03-20 1990-10-10 ILCA S.p.A. Compass, particularly for draughtsmen
EP0391027A3 (en) * 1989-03-20 1990-11-22 Ilca S.P.A. Compass, particularly for draughtsmen

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