DE1133569B - Microtome - Google Patents

Microtome

Info

Publication number
DE1133569B
DE1133569B DEV7832A DEV0007832A DE1133569B DE 1133569 B DE1133569 B DE 1133569B DE V7832 A DEV7832 A DE V7832A DE V0007832 A DEV0007832 A DE V0007832A DE 1133569 B DE1133569 B DE 1133569B
Authority
DE
Germany
Prior art keywords
rotor
bearing
cutting tool
microtome
workpiece holder
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.)
Pending
Application number
DEV7832A
Other languages
German (de)
Inventor
Humberto Fernandez- Villalobos
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority claimed from US460745A external-priority patent/US2961908A/en
Publication of DE1133569B publication Critical patent/DE1133569B/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/06—Devices for withdrawing samples in the solid state, e.g. by cutting providing a thin slice, e.g. microtome
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/34—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of turning or planing tools or tool bits, e.g. gear cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/16—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of diamonds; of jewels or the like; Diamond grinders' dops; Dop holders or tongs
    • B24B9/164—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of diamonds; of jewels or the like; Diamond grinders' dops; Dop holders or tongs of diamond tools
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/06—Devices for withdrawing samples in the solid state, e.g. by cutting providing a thin slice, e.g. microtome
    • G01N2001/061—Blade details
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/303—With tool sharpener or smoother
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Sampling And Sample Adjustment (AREA)

Description

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

V 7832 IXa/42hV 7832 IXa / 42h

ANMELDETAG: 23. SEPTEMBER 1954REGISTRATION DATE: SEPTEMBER 23, 1954

BEKANNTMACHUNG
DER ANMELDUNG
UNDAUSGABEDER
AUSLEGESCHRIFT: 19. JULI 1962 NOTICE
THE REGISTRATION
ANDOUTPUTE
EDITORIAL: JULY 19, 1962

Die Erfindung betrifft ein Mikrotom.The invention relates to a microtome.

Bei Mikrotomen, bei denen Schnitte von höchster Dünne hergestellt werden sollen, war der Vorschub des Präparates bzw. des Messers ein Problem, das mit Hilfe verschiedener Konstruktionen zu lösen versucht wurde. Der mechanische Vorschub von Hand ist seit langem bekannt, doch häufig in seiner Genauigkeit nicht ausreichend. Bei einer anderen bekannten Konstruktion wird eine Wärmeausdehnung zum Vorschub benutzt. Dabei ist das Präparat auf einem drehbaren Rotor angeordnet und bewegt sich an einem feststehenden Messer vorbei. Durch Erwärmung des Trägers mit Hilfe einer Heizspule kann das Präparat um kleine Beträge dem Messer zu bewegt und dann ein Schnitt durchgeführt werden. Zwar ist die Bewegung nahezu linear, doch ist eine ungleichmäßige Erwärmung der verschiedenen Teile des Rotors kaum zu vermeiden. Die Konstruktion hat auch den Nachteil, daß der Heizstrom dem umlaufenden Rotor zugeführt werden muß.In the case of microtomes, in which sections of the utmost thinness are to be made, the advance was of the preparation or the knife is a problem that tries to solve with the help of different constructions became. The mechanical feed by hand has long been known, but often in its accuracy unsatisfactory. In another known construction, thermal expansion becomes feed used. The preparation is arranged on a rotatable rotor and moves on a stationary one Knife over. The preparation can be converted by heating the carrier with the aid of a heating coil small amounts are moved to the knife and then a cut can be made. Although the movement is almost linear, but there is hardly any uneven heating of the various parts of the rotor avoid. The construction also has the disadvantage that the heating current is fed to the rotating rotor must become.

Gemäß der Erfindung ist nun bei Mikrotomen mit einem in zwei V-förmigen Lagern gelagerten, einen radial herausragenden Werkstückhalter tragender Rotor sowie mit einem seitlich des Rotors angebrachten, gegen den Werkstückhalter gerichteten Schneidwerkzeug, die Anordnung so getroffen, daß jedes Lager zwei getrennte, V-förmig angeordnete Platten aufweist, von denen jeweils die relativ zum Schneidwerkzeug hintere Platte durch eine Heizvorrichtung erwärmbar ist. Durch die gleichmäßige Erwärmung der hinteren Lagerplatten ist ein praktisch vollkommen linearer Vorschub des Werkstückes gewährleistet, und außerdem ergibt sich durch die V-förmige Gestalt bei einer bestimmten Erwärmung ein besonders kleiner Vorschub, da dieser der Projektion der Bewegung der Lagerplatte entspricht. Derartige Platten können ohne Schwierigkeit von außen her mit elektrischem Strom versorgt und gegenüber den übrigen Teilen der Lager abisoliert werden. Ferner ist es ohne weiteres möglich, die Temperatur dieser Lagerplatten zu messen und so genau zu steuern.According to the invention is now in microtomes with a stored in two V-shaped bearings, one radially protruding workpiece holder carrying rotor as well as with a side of the rotor attached, directed against the workpiece holder cutting tool, the arrangement made so that each bearing has two separate, V-shaped plates, each of which is relative to the cutting tool rear plate can be heated by a heater. Due to the even heating of the rear Bearing plates, a practically completely linear feed of the workpiece is guaranteed, and moreover the V-shaped shape results in a particularly small feed rate at a certain temperature, since this corresponds to the projection of the movement of the bearing plate. Such plates can without Difficulty being supplied with electricity from the outside and towards the rest of the camp be stripped. Furthermore, it is easily possible to measure the temperature of these bearing plates and so on to steer precisely.

Da der drehbare Rotor eines Mikrotoms im HTnblick auf die Genauigkeit des Schnittes entsprechend genau gelagert werden muß, sind schon bei bekannten Mikrotomen verschiedentlich V-förmige Lagerteile für den Rotor vorgesehen worden, ohne jedoch diese bekannte Lagerung für den Vorschub auszunützen. Since the rotatable rotor of a microtome in the view of the accuracy of the cut accordingly must be stored precisely, various V-shaped bearing parts are already used in known microtomes been provided for the rotor, but without taking advantage of this known storage for the advance.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigtAn exemplary embodiment of the invention is shown in the drawing. It shows

Fig. 1 eine schaubildliche Darstellung eines erfindungsgemäßen Mikrotoms,1 shows a diagrammatic representation of a microtome according to the invention,

MikrotomMicrotome

Anmelder:Applicant:

Humberto Fernändez-Morän Villalobos,
StockholmHumberto Fernandez-Morän Villalobos,
Stockholm

Vertreter: Dr.-Ing. W. Höger, Dr.-Ing. E. MaierRepresentative: Dr.-Ing. W. Höger, Dr.-Ing. E. Maier

und Dipl.-Ing. M. Sc. W. Stellrecht, Patentanwälte,and Dipl.-Ing. M. Sc. W. Stellrecht, patent attorneys,

Stuttgart S, Uhlandstr. 16Stuttgart S, Uhlandstr. 16

Beanspruchte Priorität:
Schweden vom 4. September 1954 (Nr. 8048)Claimed priority:
Sweden of September 4, 1954 (No. 8048)

Humberto Fernändez-Morän Villalobos, Stockholm, ist als Erfinder genannt wordenHumberto Fernändez-Morän Villalobos, Stockholm, has been named as the inventor

Fig. 2 einen Horizontalschnitt durch die Rotorachse. 2 shows a horizontal section through the rotor axis.

In der Zeichnung ist eine Fußplatte mit 10 bezeichnet, welche die eigentliche Vorrichtung trägt. Auf dieser Fußplatte sind im Abstand voneinander zwei Lagerböcke 12 und 13 angeordnet, die an ihrem oberen Ende mit je einem V-förmigen Lagerausschnitt 14 versehen sind, die miteinander fluchten. Die beiden Seitenflanken jedes Lagerausschnittes sind mit feinpolierten und genau einjustierten Lagerplatten 16 und 18 aus einem harten Material belegt. Ein aus Metall, vorzugsweise gehärtetem Stahl, gefertigter Rotor 20 weist einen zylindrischen Mittelteil 22 und an seinen beiden Stirnseiten je einen Wellenstummel 24 bzw. 26 auf. In der Mitte der Stirnseiten dieser Wellenstummel ist je eine Spitze 28 bzw. 30 angeordnet, die gegen Stützleisten 32 bzw. 34 anliegen, um eine Verschiebung des Rotors in axialer Richtung zu verhindern. Damit eine genaue und zuverlässige Lagerung in den V-förmigen Lagerausschnitten erfolgt, sind die Wellenstummel 24 und 26 ebenfalls fein poliert.In the drawing, a base plate is designated by 10, which carries the actual device. on this base plate two bearing blocks 12 and 13 are arranged at a distance from each other, which on their the upper end are each provided with a V-shaped bearing cutout 14 which are aligned with one another. The two Side flanks of each bearing cutout are finely polished and precisely adjusted bearing plates 16 and 18 is made of a hard material. A rotor 20 made of metal, preferably hardened steel has a cylindrical central part 22 and a shaft stub 24 or 26 on each of its two end faces on. In the middle of the end faces of this stub shaft a tip 28 or 30 is arranged, which against Support strips 32 and 34 bear in order to prevent displacement of the rotor in the axial direction. The shaft stubs are designed to ensure accurate and reliable storage in the V-shaped bearing cutouts 24 and 26 also finely polished.

Am Rotor 20 ist ein radial nach außen ragender Werkstückhalter 36 angeordnet, der mit einem stationären Schneidwerkzeug 38 zusammenwirkt. Beide Vorrichtungen werden nicht näher beschrieben, da sie keinen Gegenstand der Erfindung bilden.A workpiece holder 36 projecting radially outward is arranged on the rotor 20 and is connected to a stationary Cutting tool 38 cooperates. Both devices are not described in detail as they do not form the subject of the invention.

Um den zum Schneiden des Werkstückes bzw. Präparates erforderlichen Vorschub zu erreichen, werden die relativ zum Schneidwerkzeug hinteren Platten 16 durch eine nicht dargestellte und an sich bekannteIn order to achieve the feed required for cutting the workpiece or preparation, the rear plates 16 relative to the cutting tool by a not shown and known per se

209 620/137209 620/137

Heizvorrichtung erwärmt. Auf Grund der linearen Ausdehnung beider Platten 16 infolge der Erwärmung wird der ganze Rotor bei steigender Temperatur achsparallel um jeweils einen kleinen Betrag in Richtung auf das Schneidwerkzeug zu bewegt, das dann die gewünschten Schnitte durchführen kann.Heater heated. Due to the linear expansion of both plates 16 as a result of the heating the whole rotor becomes axially parallel by a small amount in direction as the temperature rises moved towards the cutting tool, which can then make the desired cuts.

Claims (1)

PATENTANSPRUCH:PATENT CLAIM: Mikrotom mit einem in zwei V-förmigen Lagern gelagerten, einen radial herausragenden Werkstückhalter tragenden Rotor sowie mit einem seitlich des Rotors angebrachten, gegen den Werkstückhalter gerichteten Schneidwerkzeug, dadurch gekennzeichnet, daß jedes Lager (14) zwei getrennte V-förmig angeordnete Platten (16, 18) aufweist, von denen jeweils die relativ zum Schneidwerkzeug hintere Platte (16) durch eine Heizvorrichtung erwärmbar ist.Microtome with a rotor bearing a radially protruding workpiece holder and mounted in two V-shaped bearings, as well as with a cutting tool attached to the side of the rotor and directed towards the workpiece holder, characterized in that each bearing (14) has two separate V-shaped plates (16, 18), each of which the rear plate (16) relative to the cutting tool can be heated by a heating device. In Betracht gezogene Druckschriften:Considered publications: Deutsche Patentschrift Nr. 210 986; USA.-Patentschriften Nr. 2 590 725, 2 292 973, 651236;German Patent No. 210,986; U.S. Patents Nos. 2,590,725, 2,292,973, 651236; Z. f. wissenschaftl. Mikroskopie, 62 (1954), S. 65;Z. f. Scientific. Mikoskopie, 62 (1954), p. 65; J. Nat. Bureau Standards, 43 (1949), S. 183; Microtecnic, VIII (1954), S. 33; Mikrokosmos, 42 (1953), S. 133; Experentia, IX/3, 1953, S. 114/115; Feingerätetechnik, 3 (1954), S. 140;J. Nat. Bureau Standards, 43 (1949), p. 183; Microtecnic, VIII (1954), p. 33; Mikrokosmos, 42 (1953), p. 133; Experentia, IX / 3, 1953, pp. 114/115; Feingerätetechnik, 3 (1954), p. 140; Leitz Druckschrift, Mikrotome, II/53/CX/o. Tr., Liste Mikro Nr. 8416.Leitz publication, microtomes, II / 53 / CX / o. Tr., List Micro No. 8416. Hierzu 1 Blatt Zeichnungen1 sheet of drawings © 209 620/137 7.62© 209 620/137 7.62
DEV7832A 1954-09-04 1954-09-23 Microtome Pending DE1133569B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE799497X 1954-09-04
US460745A US2961908A (en) 1954-09-04 1954-10-06 Microtome
US81421759 US3060781A (en) 1954-09-04 1959-05-19 Diamond cutting tool having an edge thickness of 0.001 to 0.01 micron

Publications (1)

Publication Number Publication Date
DE1133569B true DE1133569B (en) 1962-07-19

Family

ID=32475263

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV7832A Pending DE1133569B (en) 1954-09-04 1954-09-23 Microtome

Country Status (4)

Country Link
US (1) US3060781A (en)
DE (1) DE1133569B (en)
GB (1) GB799497A (en)
NL (1) NL90225C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751780A (en) * 1965-06-22 1973-08-14 H Villalobos Ultra sharp diamond edges for ultra thin sectioning and as point cathode
US4084942A (en) * 1975-08-27 1978-04-18 Villalobos Humberto Fernandez Ultrasharp diamond edges and points and method of making
US4319889A (en) * 1979-08-06 1982-03-16 Villalobos Humberto F Ultrasharp diamond edges and points and methods of making same by precision micro-irradiation techniques
EP0111291A2 (en) * 1982-12-08 1984-06-20 Du Pont Diamond cutting element for an ultramicrotomy knife.
DE8327637U1 (en) * 1983-09-27 1984-01-05 Parke, Davis & Co., 07950 Morris Plains, N.J. Microtome
US4643161A (en) * 1984-07-05 1987-02-17 Kim George A Method of machining hard and brittle material
US4697489A (en) * 1984-07-05 1987-10-06 Kim George A Ultramicrotome tool
US4581969A (en) * 1984-07-05 1986-04-15 Kim George A Ultramicrotome diamond knife
US6601488B1 (en) * 1999-05-07 2003-08-05 University Of Kentucky Research Foundation Cutter assembly for a microscope and related method
CN117754311A (en) * 2024-02-19 2024-03-26 江苏莫安迪科技有限公司 Servo driver combined machining device and application method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE210986C (en) *
US2292973A (en) * 1941-02-06 1942-08-11 Spencer Lens Co Microtome
US2590725A (en) * 1949-04-25 1952-03-25 Leitz Ernst Gmbh Microtomes
US2651236A (en) * 1951-08-08 1953-09-08 Kahler Herbert Microtome specimen holder

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675656A (en) * 1954-04-20 Method for sharpening razors
US1081082A (en) * 1910-02-11 1913-12-09 Norton Grinding Co Method of grinding.
US2144901A (en) * 1936-08-18 1939-01-24 Herbert Lindner Profiling diamond
US2404282A (en) * 1944-04-24 1946-07-16 Galvin Mfg Corp Apparatus for making piezoelectric crystals
US2421926A (en) * 1944-10-18 1947-06-10 Coronel Maurits Jewel carrying tool and method of making the same
US2490480A (en) * 1947-03-06 1949-12-06 Herman A Schubert Bowling pin reconditioning machine
US2461621A (en) * 1947-04-23 1949-02-15 Custom Scient Instr Inc Microtome blade holder
US2643579A (en) * 1950-02-21 1953-06-30 Jr George W Jacoby Microtome knife
US2860623A (en) * 1953-05-14 1958-11-18 Walter Muench Inc Long cutting edge diamond tool for dressing grinding wheels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE210986C (en) *
US2292973A (en) * 1941-02-06 1942-08-11 Spencer Lens Co Microtome
US2590725A (en) * 1949-04-25 1952-03-25 Leitz Ernst Gmbh Microtomes
US2651236A (en) * 1951-08-08 1953-09-08 Kahler Herbert Microtome specimen holder

Also Published As

Publication number Publication date
GB799497A (en) 1958-08-06
US3060781A (en) 1962-10-30
NL90225C (en) 1900-01-01

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