DE1096281B - Coils for the delivery and storage of wire for the manufacture of thermocouples - Google Patents

Description

The invention relates to a coil for supplying and storing wire for manufacture of thermocouples made of two wires of different materials.

So that precise temperature measurements can be carried out with the help of a thermocouple, thermoelectrically precisely matched wires must be processed with one another. So is z. B. in an iron-constantan thermocouple an iron wire of a certain thickness as a plus conductor Constantan wire of a certain size assigned as a negative conductor.

So far, each of these two wires has been delivered separately from each other in the form of coiled rings, The individual rings had to be tied together in order to be able to remove them later of the wires to avoid aggravating shifting of the wire layers. When a thermocouple is made should, a piece of wire of different material was cut from two rings, and these pieces of wire were then connected to one another by means of welding, soldering or the like. After losing weight The wire rings had to at least have the required wire lengths for the aforementioned reason two places can be tied tightly again, which means that the processing and trimming of the wires is not insignificant was made more difficult. Furthermore, it was difficult to use up the wire rings evenly, so that valuable waste always remained.

According to the invention, however, the wires are packed sitting on a common bobbin and can be removed together from it.

With such an arrangement one does not have to rely on the use of wire rings, and accordingly the aforementioned difficulties and delays in binding do not arise the wire rings.

Furthermore, the wire pieces can be removed from the wire stock in the same length at the same time so that there are no more wire residues, and accordingly a hitherto practically unavoidable valuable waste is prevented.

The great advantages of the arrangement according to the invention are also evident when one considers that, as a rule, not only thermocouples made of iron and constantan wire are used in a company consist, but also those consisting of a nickel-chromium wire and a nickel wire or a nickel-chromium wire and a constantan wire, with added comes that, according to the intended use, these different wire pairs in different Wire sizes are needed. It is also taken into account that there are always only two thermoelectrically provided wraps for delivery

and stockpiling of wire

for the production of thermocouples

Applicant:

German gold and silver refinery

formerly Roessler, Frankfurt / M., Weißfrauenstr. 9

Fritz Gross, Hanau / M.-Hohe Tanne, has been named as the inventor

Completely matched wires may be used that are already provided by the manufacturer have been selected and delivered accordingly, it is possible to assess the precautions and care taken so far in storage were necessary to manufacture incorrectly assembled or thermoelectrically to avoid thermocouples that are not well matched to one another, which lead to incorrect measurements and would therefore be regarded as a committee.

All of these difficulties and abuses are

avoided by the new arrangement. The wires that need to be processed together are located on the same reel. The reel can be placed on a captive shield all for the both wires carry important data. Previously, these dates were noted on a label that was dated on Wire ring was attached. Even with the most careful storage, however, it could not always be avoided that these loosely attached labels, especially in the case of heavy wire rings, tore off after the removal pieces of wire have inadvertently not been attached or confused with one another. Other significant advantages of the new arrangement are that the manufacturer already has the two Can match thermoelectrically related thermowires to one another. Unaffected by anyone later possibilities of confusion arise during the manufacture of thermocouples, their deviations from the basic values of their thermal voltage are as low as possible, so that a very precise recording the temperature to be measured is guaranteed. The consumer must inevitably see the two belonging together Use wires together so that the

009 680/195

possible high measurement accuracy is actually used. This used to require a very careful Monitoring, especially if a delivery consisted of several wire rings of the same wire size.

It is also of particular advantage if the device is made so that the wires z. B. can be pulled off running parallel to each other by means of appropriate guide means. By doing this have the wires already have the correct shape and position for the subsequent welding, soldering or the like.

If the two different wires are kept ready on a common spool, it is advantageous to to provide the wires in the form of two half-coils on the common reel or they are two-ply side by side, as it were, like a ribbon, to be wound on the spool.

It is particularly advantageous if the wires removed together for processing, i.e. welding, Soldering od. The like. Are supplied directly and jointly. In this particularly rational one The further advantage of application is that between the wire storage and the place of use there is practically no transfer route on which there is again a risk of mix-ups etc. would.

Further features, advantages and possible uses of the invention emerge from the following description of exemplary embodiments in Relation to the drawing.

It shows

Fig. 1 shows a coil on which two wires of different material in the form of two half-coils together are wound, and

Fig. 2 shows the same bobbin on which the two wires of different material are two-stranded next to each other are wound up.

The coil 1 according to FIG. 1 has two side disks 2 and 3. There are two between these disks Half coils of 4 and 5 different wire material. For example, the half-coil 4 is made of a constantan wire 6 and the half-coil 5 wound from an iron wire 7. The two wires 6 and 7 can are withdrawn together from the spool 1. A shield 8 on one side window of the coil carries the exact dates of the wound on the spool

ίο wires.

According to FIG. 2, the two wires 9 and 10 are two-threaded next to one another on the same bobbin, that is roughly ribbon-like, wound up. For the sake of clarity, the wire 9 is light, while the wire 10 is dark. This type of winding has the advantage that in each case pieces of wire of the same length are cut with one cut can be separated.

Claims (3)

Patent claims: ao 1. Wraps for delivery and storage of wire for the production of thermocouples from two wires of different materials, thereby characterized in that the wires, sitting on a common bobbin, are packaged and shared are removable from it. 2. Winding according to claim 1, characterized in that the two wires are arranged in the form of two half-coils (4, 5) on a common bobbin. 3. Winding according to claim 1, characterized in that the two wires (9, 10) on the common Coil bobbins are two-thread next to each other, as it were in a ribbon-like manner, wound up. Considered publications:
German Patent No. 299 843;
U.S. Patent No. 1770,021. 1 sheet of drawings 1 009 680/195 12.60