Who invented test tube holder

In large hospitals and research laboratories, it is oftentimes difficult to maintain the maximum efficiency which is needed in clinical control of the various experiments, tests, samples, etc. The present invention is designed to fulfill the rigid requirement imposed for both general and specialized test procedures, as well as, all-around laboratory use, Its use of distinctive color coding will assist in identifying objects, tests or procedures at a glance; identifying equipment assigned to a specific technician; identifying tests as to their source such as a specific physician or a particular wing in a hospital ; maintaining control over progressive steps in a multistep procedure; and providing ready identification of individual work where mass procedures are employed.

As is well known, cleanliness is a key factor in all of the aforementioned activities. It has been observed that some devices have been unable to overcome the objectionable feature of corrosiveness due to their use at varying temperatures and, because of materials and design, have been unable to retain a scratch-stain-resistant quality thus providing for continuous ease in cleaning. This invention has surmounted these objections by providing a beautiful, yet sturdy, scratch-resistant, crystal and colorful, translucent parts which resist corrosion and can be cleaned in common laboratory detergents and many light solvents.

The racks can be used in any environment, even one in which equipment must be subjected to extremes of temperature. Its interchangeability of parts and the ability to effectuate a change of elevation from shelf to shelf permits ready reading of labels and easy accessibility for tube clamps or fingers. Additionally, its cantilevered, clear crystal, single and double tray supports provide for ease of reciprocation within precision tracks disposed within the base element.

Moreover, the supports easily snap into a locked position providing for rigidity of the unit while assembled, and yet can be unsnapped and easily disassembled, thus providing for easy accessibility to areas which complicate effective cleaning. It is, accordingly, an important object of the present invention to provide a new and useful device which will effectuate convenience in improving clinical controls through more efficient organization of work and the simplification of procedures so as to eliminate the likelihood of human error.

These and other objects are accomplished by a construction which is so reduced in the number and character of its component parts as to approach the ultimate in structural simplicity and to thereby epitomize economy in its manufacture, assemblage and maintenance. The structure comprises an elongated, generally U-shaped base member which has at least two upstanding sidewalls integrally formed therewith and projecting from the peripheral edges thereof.

One or more grooves or tracks are disposed within the sidewalls and act to provide communication between the base and a tube-carrying support member. An indentation is disposed on one end of the track and provides the locking means with the support member. The support comprises an upper and a lower wall joint therebetween and at one end thereof by a laterally extending sidewall.

The upper and lower walls thereof are cantilevered and comprise a multiplicity of apertures, some of which are coaxially aligned so as to provide the depth required for insertion of various millimetrically sized tubes and containers, while other apertures protrude through one surface only. The support is easily reciprocated into and out of the base member and is locked therein by the snug fit which exists when the end wall of the support member is inserted into the indentation disposed at one end of the track located in the sidewalls of the base member.

These and other objects, and the novel details of construction of numerous commercially practical embodiments of the invention, will become more apparent as this description proceeds, especially when considered in connection with the accompanying drawings. The base member 12 comprises a rectangularly shaped web or bottom wall 16 and two upstanding sidewalls 18, 20 formed integrally therewith. The sidewalls 18, 20 extend upwardly from outer edges of the web 16 and lie in parallel relationship to each other.

A pair of grooves or tracks 22 are disposed longitudinally of the walls 18, 20 and are designed to communicate with the tube carrying support member 14, to be hereinafter described in detail.

The tracks 22 may be located at any point vertically of the walls 18, 20, but should be sufficiently elevated about the web 16 so as to allow for sufficient tube stability, when the device is fully assembled with the tubes contained therein. The thickness of the web 16 is substantially the same as that of the sidewalls 18, Personal information will not be shared or result in unsolicited email. We may use the provided email to contact you if we have additional questions.

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View manifest View in Mirador. Description Brief This object is a test tube made of Pyrex glass. What holds a test tube? Function of test tube holder and test tube brush? What is a test tube holder and what it is used? What is used to grip test tube? How should you hold a test tube? What is the used of test tube holder? How to hold a test tube?

Is a test tube holder the same as a test tube clamp? What is the difference between a test tube holder and a test tube rack?

Description of test tube holder? What do you call a thing uses to hold a test tube? What would you use if you were holding and heating a test tube?

What holds test tubes? How do you describe a test tube holder? What is the definition of test tube holder? What is used to hold a test tube when it is being heated? What is the precaution in handling test tube? How do you use the test tube holder? What are some of the scientific apparatus?

What is used for holding a test tube in place when the tube is hot or should not be touched? What is the instrument that used to hold test tube in upright position? If you are heating a substance in a test tube , you want to be able to control the heating.

If there is any extra glass for standing on a table, that glass will hold more heat. Also, that glass will take longer to heat up. With a rounded bottom on the test tube , the heating is even and easy to control. From Wikipedia, the free encyclopedia. Chemical table file CT File is a family of text-based chemical file formats that describe molecules and chemical reactions.

One format, for example, lists each atom in a molecule, the x-y-z coordinates of that atom, and the bonds among the atoms. Effective washing usually requires a test tube brush just slightly less in diameter than the tube. Use the brush with hot soapy water. If you end up with stains which don't respond to this you can try soaking in acetone. Don't forget to rinse well in clean water.

A wash bottle is a squeeze bottle with a nozzle, used to rinse various pieces of laboratory glassware, such as test tubes and round bottom flasks. Wash bottles are sealed with a screw-top lid. In Britain, a beaker is a drinking cup mainly used by children, but in the U. Along with things like Bunsen burners and test tubes, a well-stocked chemistry lab has plenty of beakers. Why are there several types of glassware marked for measuring?