US225265A - Expansible reaming-bit - Google Patents
Expansible reaming-bit Download PDFInfo
- Publication number
- US225265A US225265A US225265DA US225265A US 225265 A US225265 A US 225265A US 225265D A US225265D A US 225265DA US 225265 A US225265 A US 225265A
- Authority
- US
- United States
- Prior art keywords
- bit
- expansible
- parts
- reaming
- screw
- 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
- 238000004140 cleaning Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 241000283690 Bos taurus Species 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/03—Boring heads
- B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
- B23B29/03403—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing
- B23B29/03421—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing by pivoting the tool carriers or by elastic deformation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D77/00—Reaming tools
- B23D77/02—Reamers with inserted cutting edges
- B23D77/04—Reamers with inserted cutting edges with cutting edges adjustable to different diameters along the whole cutting length
- B23D77/048—Reamers with inserted cutting edges with cutting edges adjustable to different diameters along the whole cutting length by means of conical screw threads
-
- 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
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/83—Tool-support with means to move Tool relative to tool-support
- Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
- Y10T408/858—Moving means including wedge, screw or cam
- Y10T408/8583—Moving means including wedge, screw or cam with resiliently urged Tool
- Y10T408/85843—Resilient Tool or tool-support
-
- 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
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/83—Tool-support with means to move Tool relative to tool-support
- Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
- Y10T408/858—Moving means including wedge, screw or cam
- Y10T408/8588—Axially slidable moving-means
- Y10T408/85892—Screw driven wedge or cam
- Y10T408/85895—Traveling wedge
- Y10T408/858953—Interfitting, tool-retaining wedge
- Y10T408/858955—Interfitting, tool-retaining wedge including separable interfitting element
-
- 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
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/83—Tool-support with means to move Tool relative to tool-support
- Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
- Y10T408/858—Moving means including wedge, screw or cam
- Y10T408/8588—Axially slidable moving-means
- Y10T408/85892—Screw driven wedge or cam
- Y10T408/85895—Traveling wedge
- Y10T408/858957—Having externally threaded shank connected to tool-support
Definitions
- This invention relates to expansible reamers or reamer-bits; and it consists in an improved construction of the bit, and in the combination therewith of a tapering tapped screw, as hereinafter described, and particularly pointed ontin the claims.
- A is the upper cylindrical part of the bit, which has a square part, a, for fitting it into the stock.
- the bit proper is semicircular in cross-section, and consists of two parts, B B, divided by a longitudinal slot, b, the upper part of which,-just below the cylindrical head A, is enlarged, as shown at b, to prevent splitting in expanding the bit.
- a small brush, cotton-waste, or an oiled rag for cleaning may be inserted into this enlargement b to wipe or clean the hole as the reamer progresses, and remove the fine metal threads or shavings.
- Each of the two parts, B B has a straight inner edge,but curvilinear outer edge, e, as shown in Figs. 1 and 2.
- the curvilinear edges 0 6 form the cutting parts of the bit, the widest or broadest part of which is about midway between the enlargement b and the end of the bit.
- the straight inner edges have each a tapering recess, c c, which are opposite to and register with each other, and into which a tapering screw, 0, having a square part, d, at its lower end, is inserted, the recesses 0 a being screwthreaded to fit the tapering adjusting-screw 0.
- the adj usting-screw C may readily be turned in either direction by inserting a key upon its square part d, or with the aid of a pair of pliers.
- the parts B B will always, whatever the degree of expansion may be, present a true slightly-curved cutting-edge t0 the inside of the tube or barrel which is to be bored out, and the strain upon the bit will always be at or near the middle of its curved parts B B, which would not be the case if these parts were constructed with straight edges.
- This reamer is particularly adapted for the reboring or choke-boring of gun-barrels, or for truing the same; and as (besides the stock) it consists of only two parts, it is simple and durable in its construction, easily operated, and not liable to get out of order.
- the expansible reamer-bit consisting of the square part a, cylindrical part A, and semicylindrical parts B B, having longitudinal central slot b, enlargement b, tapering screwthreaded recesses c c, and curvilinear cutting- I edges 0 c, and provided with means for its eX- pansion, substantially as and for the purpose herein shown and described.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Description
v A. ARNTZ. Expansible Beaming-Bit.
No. 225,265. Patented Mar. 9, 1880.
UNITED STATES PATENT OFFICE.
ADOLPH ARNTZ, OF MUSKEGON, MICHIGAN.
EXFANSIBLE REAMlNG-BIT.
SPECIFICATION forming part of Letters Patent No. 225,265, dated March 9, 1880. Application field July 26, 1879.
To all whom it man,
Be it known t1 I, ADOLPH AR'NTZ, of Muskegon, in the county of Muskegon and State of Michigan, have invented certain new and useful Impromments in Expansible Reaming-Bits; and I do hereby declare that the following is a full, clear, and exact description of the inven ion, which will enable others skilled in tlt art to which it appertains to make and 1184 ne same, reference being bad to the accompai ying drawings, which form a part of this specif "ation, and in which Figures 1 and 2 are front elevations. Fig. 3 is a side view, and Fig. 4 is an end or bottom view.
Similar letters of reference indicate corresponding parts in all the figures.
This invention relates to expansible reamers or reamer-bits; and it consists in an improved construction of the bit, and in the combination therewith of a tapering tapped screw, as hereinafter described, and particularly pointed ontin the claims.
In the drawings, A is the upper cylindrical part of the bit, which has a square part, a, for fitting it into the stock. The bit proper is semicircular in cross-section, and consists of two parts, B B, divided by a longitudinal slot, b, the upper part of which,-just below the cylindrical head A, is enlarged, as shown at b, to prevent splitting in expanding the bit. If desired, a small brush, cotton-waste, or an oiled rag for cleaning may be inserted into this enlargement b to wipe or clean the hole as the reamer progresses, and remove the fine metal threads or shavings. Each of the two parts, B B, has a straight inner edge,but curvilinear outer edge, e, as shown in Figs. 1 and 2. The curvilinear edges 0 6 form the cutting parts of the bit, the widest or broadest part of which is about midway between the enlargement b and the end of the bit. The straight inner edges have each a tapering recess, c c, which are opposite to and register with each other, and into which a tapering screw, 0, having a square part, d, at its lower end, is inserted, the recesses 0 a being screwthreaded to fit the tapering adjusting-screw 0. By turning this screw so as to cause it to enter the recesses c c the slot 11 is widened COW/067% and the bit B B accordingly expanded, while by moving the screw in the opposite direction the elasticity of the bit will cause the parts B B to reassume their normal position with their inner straight edges parallel to each other.
The adj usting-screw C may readily be turned in either direction by inserting a key upon its square part d, or with the aid of a pair of pliers.
By making the outer cutting-edges, e e, of the bit curvilinear, as described, the parts B B will always, whatever the degree of expansion may be, present a true slightly-curved cutting-edge t0 the inside of the tube or barrel which is to be bored out, and the strain upon the bit will always be at or near the middle of its curved parts B B, which would not be the case if these parts were constructed with straight edges.
This reamer is particularly adapted for the reboring or choke-boring of gun-barrels, or for truing the same; and as (besides the stock) it consists of only two parts, it is simple and durable in its construction, easily operated, and not liable to get out of order.
Having thus described my invention, I claim and desire to secure by Letters Patent of the United States- 1. The expansible reamer-bit, consisting of the square part a, cylindrical part A, and semicylindrical parts B B, having longitudinal central slot b, enlargement b, tapering screwthreaded recesses c c, and curvilinear cutting- I edges 0 c, and provided with means for its eX- pansion, substantially as and for the purpose herein shown and described.
2. The combination, with the bit a A B B, having longitudinal slot 1), enlargement b, tapering screw-threaded recesses c c, and curvilinear cutting-edges e e, of the tapering adjusting-screw 0, provided with the square part 01, substantially as set forth. I
in testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.
ADOLPH A'RNTZ.
Witnesses FRANCIS Jmocn, WM. PEER.
Publications (1)
Publication Number | Publication Date |
---|---|
US225265A true US225265A (en) | 1880-03-09 |
Family
ID=2294654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US225265D Expired - Lifetime US225265A (en) | Expansible reaming-bit |
Country Status (1)
Country | Link |
---|---|
US (1) | US225265A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2508183A (en) * | 1947-03-14 | 1950-05-16 | Francis H Mitchell | Grooving tool |
-
0
- US US225265D patent/US225265A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2508183A (en) * | 1947-03-14 | 1950-05-16 | Francis H Mitchell | Grooving tool |
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