DE858154C - Burette holder - Google Patents

Burette holder

Info

Publication number
DE858154C
DE858154C DEH6021D DEH0006021D DE858154C DE 858154 C DE858154 C DE 858154C DE H6021 D DEH6021 D DE H6021D DE H0006021 D DEH0006021 D DE H0006021D DE 858154 C DE858154 C DE 858154C
Authority
DE
Germany
Prior art keywords
burette
rollers
holder
burette holder
longitudinal axis
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
DEH6021D
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.)
ALFRED HORNIG DR
KARL QUEDZUWEIT
Original Assignee
ALFRED HORNIG DR
KARL QUEDZUWEIT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ALFRED HORNIG DR, KARL QUEDZUWEIT filed Critical ALFRED HORNIG DR
Priority to DEH6021D priority Critical patent/DE858154C/en
Application granted granted Critical
Publication of DE858154C publication Critical patent/DE858154C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L9/00—Supporting devices; Holding devices
    • B01L9/50—Clamping means, tongs

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Description

Die Erfindung betrifft einen Bürettenhalter mit Dreipunkthalterung der Bürette mittels an Haltearmen befestigter Rollen, von denen die mittlere Rolle gegen die beiden anderen zwecks Festhaltens der Bürette verschiebbar ist, wobei der Halter selbst an einem Stativ befestigt ist. The invention relates to a burette holder with a three-point bracket the burette by means of rollers attached to holding arms, of which the middle roller can be displaced against the other two in order to hold the burette in place, wherein the holder itself is attached to a tripod.

Bei den bekannten Haltern dieser Art sind die Rollen an den Haltearmen so angeordnet, daß ihre Achsen parallel zur Längsachse der Bürette laufen. In the known holders of this type, the rollers are on the holding arms arranged so that their axes run parallel to the longitudinal axis of the burette.

Hierdurch ist bezweckt, die Möglichkeit zu gehen, die von den Rollen gehaltene Bürette so zu drehen, daß die Zahlenskalen gut sichtbar sind. Will man aller die Bürette über dem Titriertisch in ihrer Höhenlage verändern, um z. B. eine höhere Flasche unter einen Bürettenauslauf zu setzen oder den in der Bürette sich einstellenden Flüssigkeitsstand zwecks genauer Ablesemöglichkeit in Augenhöhe zu bringen, so ist jedesmal ein Lösen der Halterung und nach Einstellen der Bürette in der gewünschten Höhe ein NViederbefestigen der @ Halterung erforderlich.The purpose of this is to give the opportunity to go by the roles to turn the burette held in such a way that the number scales are clearly visible. Do you want all change the height of the burette above the titration table in order to e.g. Legs to place a higher bottle under a burette outlet or the one in the burette itself adjusting fluid level for the purpose of more accurate reading at eye level bring, then each time a loosening of the holder and after adjusting the burette The @ bracket must be re-fastened at the desired height.

Diese umständliche und zeitraubende Arbeit wird gemäß der Erfindung dadurch vermieden, daß die Achsen der an den Haltearmen befestigten Rollen senkrecht zu der Längsachse bzw. der Halterungsebene der Bürette angeordnet sind. This cumbersome and time consuming work is carried out according to the invention thereby avoided that the axes of the rollers attached to the support arms are perpendicular are arranged to the longitudinal axis or the mounting plane of the burette.

Hierdurch ist es möglich, die von den Rollen gehaltene Bürette bequem auf- und abschieben zu können. Andererseits bleibt die Möglichkeit zur Drehung der Bürette durchaus gewahrt wenn man sie mit einer Schiebebewegung verbindet. This makes it possible to comfortably use the burette held by the rollers to be able to move up and down. On the other hand, there is still the option to rotate the Burette preserved if you combine it with a sliding movement.

Zur einwandfreien Halterung und Führung der Bürette sind die Rollen gekehlt. NVenn auch die hierbei sich ergebende horizontale Linienberührung zwischen Rolle und Bürette bereits wesentlich günstiger für die Vermeidung einer Beschädigung der Bürette ist als die bei der üblichen Dreipunkthalterung, bei der eine Linienberührung in der Achsenrichtung der Bürette stattfindet, so kann die hiermit verbundene Druckbeanspruchung der Bürette noch weiter dadurch stark gemildert werden, daß die Oberfläche der Rollen aus weichen oder elastichem Material, z. B. Samt oder Weichgummi, besteht. The rollers are used to hold and guide the burette properly grooved. NVenn also the resulting horizontal line contact between Roll and burette are already much cheaper to avoid damage The burette is more than the one with the usual three-point mounting, where there is a line contact takes place in the axial direction of the burette, the associated compressive stress the burette can be further weakened by the fact that the surface of the rollers made of soft or elastic material, e.g. B. velvet or soft rubber.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgedankens in räumlicher Ansicht dargestellt. In the drawing is an embodiment of the inventive concept shown in three-dimensional view.

Der an dem Stativ 1 mittels der Klemmvorrichtung 2 befestigte Halter 3 ist mit llaltearlllell versehen, von denen die Arme 4 starr angeordnet. die Arme 5 beweglich sind. Die Arme tragen die Halt.-rollen 6, deren Achsen / senkrecht zur Längsachse der einzuspannenden Bürette 8 verlaufen. Der bewegliche Arm 5 wird zweckmäßig durch eine Feder 9 gegen die Bürette gedrückt. The holder attached to the stand 1 by means of the clamping device 2 3 is provided with llaltearlllell, of which the arms 4 are rigidly arranged. the poor 5 are movable. The arms carry the Halt.-rolls 6, whose axes / perpendicular to the The longitudinal axis of the burette 8 to be clamped run. The movable arm 5 becomes useful pressed against the burette by a spring 9.

Claims (3)

P A T E N T A N S P R Ü C H E: 1. Bürettenhalter mit Dreipunkthalterung der Bürette mittels an Haltearmen befestigter Rollen, voii denen die mittlere Rolle gegen die beiden anderen zwecks Festhaltens der Bürett: verschiebbar ist, dadurch gekennzeichnet, dalS die Achsen der Rollen senkrecht zur Längsachse bzw. zur Halterungsebene der Bürette angeordnet sind. P A T E N T A N S P RÜ C H E: 1. Burette holder with three-point support the burette by means of rollers attached to holding arms, of which the middle roller against the other two in order to hold the buret in place: is displaceable, thereby characterized that the axes of the rollers are perpendicular to the longitudinal axis or to the mounting plane the burette are arranged. 2. Bürettenhalter nach Anspruch 1, dadurch gerkennzeichnet, daß die Rollen gekehlt sind. 2. burette holder according to claim 1, characterized in that the Rollers are grooved. 3. Bürettenhalter nach Anspruch 1 und 2. dadurch gekennzeichnet, daß die Oberfläche der Rollen aus weichen oder elastischem Material, beispielsweise Samt oder Gummi, besteht. 3. Burette holder according to claim 1 and 2, characterized in that that the surface of the rollers made of soft or elastic material, for example Velvet or rubber.
DEH6021D 1944-07-11 1944-07-11 Burette holder Expired DE858154C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH6021D DE858154C (en) 1944-07-11 1944-07-11 Burette holder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH6021D DE858154C (en) 1944-07-11 1944-07-11 Burette holder

Publications (1)

Publication Number Publication Date
DE858154C true DE858154C (en) 1952-12-04

Family

ID=7144532

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH6021D Expired DE858154C (en) 1944-07-11 1944-07-11 Burette holder

Country Status (1)

Country Link
DE (1) DE858154C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044458B (en) * 1955-02-28 1958-11-20 Rhema Glas Rheinmainische Glas Clamping device for attaching glass devices u. Like. On stands for laboratories

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044458B (en) * 1955-02-28 1958-11-20 Rhema Glas Rheinmainische Glas Clamping device for attaching glass devices u. Like. On stands for laboratories

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