DE36496C - Apparatus for hardening the teeth of saw blades - Google Patents
Apparatus for hardening the teeth of saw bladesInfo
- Publication number
- DE36496C DE36496C DENDAT36496D DE36496DA DE36496C DE 36496 C DE36496 C DE 36496C DE NDAT36496 D DENDAT36496 D DE NDAT36496D DE 36496D A DE36496D A DE 36496DA DE 36496 C DE36496 C DE 36496C
- Authority
- DE
- Germany
- Prior art keywords
- teeth
- hardening
- saw blades
- trough
- box
- 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
Links
- 241000763859 Dyckia brevifolia Species 0.000 title claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010425 asbestos Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229910052895 riebeckite Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 240000004524 Derris elliptica Species 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/24—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for saw blades
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE 49: Mechanische Metallbearbeitung.CLASS 49: Mechanical metalworking.
Patentirt im Deutschen Reiche vom 13. October 1885 ab.Patented in the German Empire on October 13, 1885.
Die Erfindung bezieht sich auf einen Apparat zum Härten von Sägen, und zwar besonders der Sägen, die zum Schneiden von Metallen und anderen harten Substanzen dienen. Die mittelst des Apparates gehärtete Säge besitzt sehr harte Zähne und ist an ihrem übrigen Theil nur so hart, dafs sie bei plötzlichen Biegungen oder Drehungen nicht bricht.The invention particularly relates to apparatus for hardening saws saws that are used to cut metals and other hard substances. the The saw hardened by means of the apparatus has very hard teeth and is on the rest of it Partly just so hard that it does not break when suddenly bent or twisted.
Ein Stahlstreifen A, Fig. 1, wird in der üblichen Weise mit Zähnen B versehen und dann erwärmt, worauf man ihn mit den Zähnen nach unten in den in Fig. 2 und 3 dargestellten Apparat bringt. In dem letzteren kann die Härtungsflüssigkeit (vorzugsweise Wasser) nur bis zu den Wurzeln der Zähne hinaufdringen, so dafs nur die Zähne plötzlich gekühlt und dadurch gehärtet werden, während der übrige Theil des Blattes langsam abkühlt und folglich weich bleibt.A steel strip A, FIG. 1, is provided with teeth B in the usual manner and then heated, whereupon it is brought into the apparatus shown in FIGS. 2 and 3 with the teeth facing downwards. In the latter the hardening liquid (preferably water) can only penetrate up to the roots of the teeth, so that only the teeth are suddenly cooled and thereby hardened, while the remainder of the leaf cools slowly, and consequently remains soft.
Der Apparat besteht aus dem Kasten C, durch welchen man die Kühlflüssigkeit continuirlich strömen läfst; ein Trog D von halbkreisförmigem Querschnitt steht mit derri Innern des Kastens C durch die Oeffnungen ■{ in Verbindung. Oben auf dem Kasten C liegen die Platten E und E \ von denen die letztere mittelst der durch Schlitze geführten Schrauben F stellbar ist. Die an einander stofsenden Kanten der Platten EE1 sind mit Packungen α von Asbest oder ähnlichem unverbrennlichen Material versehen, welche verhindern sollen, dafs die Kühlflüssigkeit über die zwischen ihnen eingeprefste Stelle des Sägeblattes hinaufsteigt. Eine stellbare Auflage, welche nach der Gröfse der zu härtenden Zähne regulirt wird, ist an beiden Enden des Apparates angebracht und verhindert das zu tiefe oder zu flache Eintauchen des Blattes.The apparatus consists of box C through which the cooling liquid is allowed to flow continuously; a trough D of semicircular cross section is with derri inside of the casing C through the openings {■ in connection. On top of the box C are the plates E and E \, the latter of which can be adjusted by means of the screws F guided through the slots. The abutting edges of the plates EE 1 are provided with packings α of asbestos or similar incombustible material, which are intended to prevent the cooling liquid from rising over the point of the saw blade pressed between them. An adjustable support, which is regulated according to the size of the teeth to be hardened, is attached to both ends of the apparatus and prevents the blade from immersing too deeply or too shallowly.
Auch kann man ein endloses Band aus Gewebe in dem Trog D an den Sägezähnen hinführen, welches, durch die Temperflüssigkeit benetzt, die Zähne in entsprechender Weise abkühlt.An endless band of fabric can also be led to the saw teeth in the trough D , which, wetted by the tempering liquid, cools the teeth in a corresponding manner.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE36496C true DE36496C (en) |
Family
ID=312307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT36496D Expired - Lifetime DE36496C (en) | Apparatus for hardening the teeth of saw blades |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE36496C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4707329A (en) * | 1986-01-07 | 1987-11-17 | Westinghouse Electric Corp. | Nuclear reactor control rod with uniformly changeable axial worth |
-
0
- DE DENDAT36496D patent/DE36496C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4707329A (en) * | 1986-01-07 | 1987-11-17 | Westinghouse Electric Corp. | Nuclear reactor control rod with uniformly changeable axial worth |
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