DE482636C - Drills, especially for built-in wooden railway sleepers - Google Patents

Drills, especially for built-in wooden railway sleepers

Info

Publication number
DE482636C
DE482636C DEW73829D DEW0073829D DE482636C DE 482636 C DE482636 C DE 482636C DE W73829 D DEW73829 D DE W73829D DE W0073829 D DEW0073829 D DE W0073829D DE 482636 C DE482636 C DE 482636C
Authority
DE
Germany
Prior art keywords
built
drill
drills
railway sleepers
wooden railway
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
DEW73829D
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEW73829D priority Critical patent/DE482636C/en
Application granted granted Critical
Publication of DE482636C publication Critical patent/DE482636C/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/20—Working or treating non-metal sleepers in or on the line, e.g. marking, creosoting
    • E01B31/24—Forming, treating, reconditioning, or cleaning holes in sleepers; Drilling-templates

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Drilling Tools (AREA)

Description

Bohrer, insbesondere für eingebaute Eisenbahnholzschwellen Die Erfindung bezieht sich auf einen Bohrer, insbesondere für eingebaute Eisenbahnholzschwellen, und besteht im wesentlichen darin, daß ein an sich bekannter zylindrischer Bohrer in einen kegelstumpfartig sich verstärkenden Löffelbohrer übergeht und .beide Bohrer ein Stück bilden. Ein solcher Bohrer ist besonders für die Nachbearbeitung von eingebauten Eisenbahnholzschwellen deswegen von Vorteil, weil nur ein einziger Bohrer Verwendung zu finden braucht, dessen Teile sämtlich fest sind, wobei der Löffelbohrer eine Form aufweist, die jederzeit leicht nachschleifbar ist und einen sehr günstigen Schneidwinkel bildet, ohne daß es möglich ist', daß irgendwelche losen Teile auf dem Strekkenbau verlorengehen können.Drills, especially for built-in wooden railway sleepers The invention refers to a drill, especially for built-in wooden railway sleepers, and consists essentially in that a cylindrical drill known per se merges into a truncated cone-like reinforcing spoon bit and .both drills form a piece. Such a drill is particularly suitable for post-processing of built-in Railway sleepers are advantageous because only a single drill is used needs to find, the parts of which are all solid, the spoon bit being a Has a shape that can be easily regrinded at any time and is very inexpensive Cutting angle forms without it being possible that any loose parts can be lost during the construction of the route.

In der Zeichnung sind verschiedene Ausführungsbeispiele der Erfindung dargestellt. Abb. i zeigt einen Spiralholzbohrer, Abb. z einen zweischneidigen Langlochbohrer, Abb. 3 einen einschneidigen Langlochbohrer gemäß der Erfindung.Various exemplary embodiments of the invention are shown in the drawing shown. Fig. I shows a twist wood drill, Fig.z a double-edged long hole drill, Fig. 3 shows a single-edged long hole drill according to the invention.

In der Zeichnung bedeutet ai, a2 bzw. a$ den eigentlichen Holzbohrer, der bei & einen Spiralbohrer darstellt, während a2 einen zweischneidigen Langlochbohrer, a3 einen einschneidigen Langlochbohrer veranschaulichen soll. b ist ein Löffelbohrer, der sich an den unteren. Holzbohrer anschließt.In the drawing, ai, a2 or a $ means the actual wood drill, which at & represents a twist drill, while a2 represents a double-edged long hole drill, a3 is intended to illustrate a single-edged long hole drill. b is a spoon bit, which is attached to the lower. Wood drill connects.

Sämtliche Teile des Bohrers sind, wie man sieht, aus einem einzigen Werkstück. hergestellt, so daß sich irgendwelche losen Teile von dem Bohrer nicht lösen können.As you can see, all parts of the drill are made from a single one Workpiece. made so that any loose parts from the drill will not come off to be able to solve.

Claims (1)

PATENTANSPRUCH: Bohrer, insbesondere für eingebaute Eisenbahnholzschwellen, dadurch gekennzeichnet, daß ein an sich bekannter zylindrischer Bohrer (d, a2, a3) in einen kegelstumpfartig sich verstärkenden Löffelbohrer (b) übergeht und beide Bohrer ein Stück bilden. .PATENT CLAIM: Drills, especially for built-in wooden railway sleepers, characterized in that a known cylindrical drill (d, a2, a3) merges into a truncated cone-like reinforcing spoon bit (b) and both Form drill one piece. .
DEW73829D Drills, especially for built-in wooden railway sleepers Expired DE482636C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW73829D DE482636C (en) Drills, especially for built-in wooden railway sleepers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW73829D DE482636C (en) Drills, especially for built-in wooden railway sleepers

Publications (1)

Publication Number Publication Date
DE482636C true DE482636C (en) 1929-09-17

Family

ID=7609487

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW73829D Expired DE482636C (en) Drills, especially for built-in wooden railway sleepers

Country Status (1)

Country Link
DE (1) DE482636C (en)

Similar Documents

Publication Publication Date Title
DE482636C (en) Drills, especially for built-in wooden railway sleepers
DE441370C (en) Clothespin
DE901886C (en) Handle attachment to brooms, scrubbers or the like.
DE832430C (en) Tool kit
DE638615C (en) Cutting tools, in particular for woodworking
AT117413B (en) Device for defining points which are above given points.
DE426079C (en) Attachment of the hammer handle in clockworks
DE361115C (en) Rock drill
AT146383B (en) Window or door reveal.
DE457985C (en) Obstetric forceps
DE520560C (en) One piece long hole drill
DE731156C (en) Composed file with interchangeably housed in a holder that tapers off as a handle, serrated saw blades
DE322544C (en) Collar glazing
DE569283C (en) Corner connection, especially for boxes made of plywood, vulcanized fiber, leather cardboard or the like
DE728989C (en) Teaching for marking large standard characters, numbers, etc.
DE418216C (en) Clamping groove for tables of machine tools
DE618461C (en) Wooden framework
DE510243C (en) Feed silo
DE361575C (en) Shoe last holder to place on the thighs
DE720990C (en) Corkscrew pocket knife
DE546067C (en) File with a double cut
DE419399C (en) Manufacture of screw clamps
DE514846C (en) Device for cutting wooden strips on a miter
DE574304C (en) Planer
DE635053C (en) Bearing piece to accommodate the switching device for the paper trolley of type lever typewriters