US852745A - Boring-bit. - Google Patents

Boring-bit. Download PDF

Info

Publication number
US852745A
US852745A US27213105A US1905272131A US852745A US 852745 A US852745 A US 852745A US 27213105 A US27213105 A US 27213105A US 1905272131 A US1905272131 A US 1905272131A US 852745 A US852745 A US 852745A
Authority
US
United States
Prior art keywords
cutters
socket
bit
cutter
boring
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
Application number
US27213105A
Inventor
Nicolaus Staub
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 to US27213105A priority Critical patent/US852745A/en
Application granted granted Critical
Publication of US852745A publication Critical patent/US852745A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type

Definitions

  • This invention has for its object a composite rose hit, in which a number of radiaily l lormedwedge-shaped cutters are arranged alternately and are held in position by means oi a centralcutter.
  • the invention is illustrated in the aceomshaped outer cutters I), provided with wedgeshaped their sides which are directed one to t other; they also have curved surfaces 5 m of I dili'erent curvature. lhesc surfaces l present the same radius of curvature as the adjoining faces of the circular cutter a which is formed with a llat cutting edge i.
  • the cutters are arranged in position for use, their cutting edges resting upon a plane surface.
  • the socket is then passed from above over tangs of the cutters and tapped with a Wooden mallet.
  • the tool may be conveniently "taken apart by holding it firmly and then striking" the cutter bar It. -Uponthe withdrawal of this latter the cutters may be loosened and readily removed.
  • a composite rose bit comprising a socket member having an opening in its bottom, radial cutters seated in the socket of said nemher, a central cutter having a shank located between and engaging said radial cutters, and a cutter bar passing through the opening in the socket member and locatcd'between and engaging the radial cutters.
  • a composite rose bit comprising a socket i member having an opening in'its b0ttom,ra
  • dial cutters each having curved inner surfaces at their top and bottom and seated in said socket member, a conical central cutter inserted between the radial cutters and en-,
  • a composite rose bit comprising a socket real cutter bar passing through the opening in the socket member and located between the radial cutters and engaging their curved bottom surfaces.

Description

PATENTBD MAY 7, 1901 N. STAUB. BORING BIT.
PPLIGATION FILED JULYBl, 1905.
UNiiThZD snirnnr cri ics NICOLAUS STAUB, OF SCHIFFWEILER, GERMANY.
Specification of Letters Iiet-ent.
Patented ma '2, 1907.
Application filed July 31,1905. Serial to. 272.131.
To all who) it "may concern.-
Be it known that I, NICULAUS STAUB, a subject of the Emperor of German residing at Ottwcilerstrasse, Schii'i'weiier ries' ()ttweiler, in the Empire of Germany, locksmith, have invented certain new and useful improvements in Boring-Bits. of which the following is a specification.
This invention has for its object a composite rose hit, in which a number of radiaily l lormedwedge-shaped cutters are arranged alternately and are held in position by means oi a centralcutter.
'lhe borinc bit which forms the subject of the present invention dill'crs from those hitherto cmployed owing to the l'ac't that with the central cut ter, the cutter bar is employed in holding the outer cutters in place in the 3 By this means the advantage is ob- I socket. I ta ned that the cutters maybe released without the employment of a special tool merely by striking the cutter hat or the bottom of the socket.
The invention is illustrated in the aceomshaped outer cutters I), provided with wedgeshaped their sides which are directed one to t other; they also have curved surfaces 5 m of I dili'erent curvature. lhesc surfaces l present the same radius of curvature as the adjoining faces of the circular cutter a which is formed with a llat cutting edge i.
'lhe Wedge-shaped cutters are held in the bore 1/, which widens at a and j, of a socket c, on. the one hand in the known manner by means of the circular cutter a resenting the form of a truncated cone, an on the other cutting edges 11' and stopped at n on hand by the cutter bar 71, which passes through the opening 9 in the socket and is likewise in the form of a truncated cone.
F or the purpose of assembling the tool, the cutters are arranged in position for use, their cutting edges resting upon a plane surface. The socket is then passed from above over tangs of the cutters and tapped with a Wooden mallet. The tool may be conveniently "taken apart by holding it firmly and then striking" the cutter bar It. -Uponthe withdrawal of this latter the cutters may be loosened and readily removed.
iiavin now particularly described and ascertained the nature of in; said invention formed, it (lttllLtC that what- I claim is l member having an opening in its bottom, raf dial cutters seated in the socket of said meniher, a cent rai cutter enga 'mg the upper part of said radial cutters, and a cutter bar passber and engaging the lower part of the radial cutters.
2. A composite rose bit comprisinga socket member having an opening in its bottom, radial cutters seated in the socket of said nemher, a central cutter having a shank located between and engaging said radial cutters, and a cutter bar passing through the opening in the socket member and locatcd'between and engaging the radial cutters.
3. A composite rose bit comprising a socket i member having an opening in'its b0ttom,ra
. dial cutters each having curved inner surfaces at their top and bottom and seated in said socket member, a conical central cutter inserted between the radial cutters and en-,
aging their curved top surfaces, and a conand in what manner the same is to be per ing through the opening in the socket metn- 1. A composite rose bit comprising a socket real cutter bar passing through the opening in the socket member and located between the radial cutters and engaging their curved bottom surfaces. I
my hand in presence of two subscribing witnesses this 25th day of October 1906.
STAUB.
, N ICOLAUS Witnesses: h'iAGDALENA STAUB,
l j in testimony whereof Ihave hereunto set i "XVALTER HOUSING.
US27213105A 1905-07-31 1905-07-31 Boring-bit. Expired - Lifetime US852745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US27213105A US852745A (en) 1905-07-31 1905-07-31 Boring-bit.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27213105A US852745A (en) 1905-07-31 1905-07-31 Boring-bit.

Publications (1)

Publication Number Publication Date
US852745A true US852745A (en) 1907-05-07

Family

ID=2921203

Family Applications (1)

Application Number Title Priority Date Filing Date
US27213105A Expired - Lifetime US852745A (en) 1905-07-31 1905-07-31 Boring-bit.

Country Status (1)

Country Link
US (1) US852745A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446795A (en) * 1944-10-14 1948-08-10 Earl H Trimble Drill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446795A (en) * 1944-10-14 1948-08-10 Earl H Trimble Drill

Similar Documents

Publication Publication Date Title
US1365660A (en) Bit and like boring-tool
US852745A (en) Boring-bit.
US475560A (en) Plug-cutter
US805170A (en) Boring-tool.
US74490A (en) Jason a
US2358052A (en) Arc bit point for rock drills
AR059878A1 (en) CUTTING MACHINE USED PARTICULARLY IN AGRICULTURE, ARBORICULTURE AND VITICULTURE
US1204805A (en) Drill.
US533527A (en) Indexing-cutter
US800143A (en) Cutter-head.
US1237064A (en) Drill.
US334595A (en) James w
US769200A (en) Expansion-bit.
US370200A (en) Wood plug for nail or other holes
GB191413998A (en) Improvements in Coal Cutter Picks of the "Puncher" Type.
US108040A (en) Improvement in saws
US110123A (en) Improvement in grooving-tools
US907667A (en) Die.
US825316A (en) Holder for communion-cups.
US895244A (en) Drill and socket therefor.
US98745A (en) Improvement in papering pins
US533855A (en) Auger-bit
GB104855A (en) Improvements in and relating to Engineers' Taps, Reamers or the like Cutting Tools.
US483411A (en) Territory
GB191314637A (en) Improvements in Rock Drills.