US114953A - Improvement in boring-machines - Google Patents

Improvement in boring-machines Download PDF

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Publication number
US114953A
US114953A US114953DA US114953A US 114953 A US114953 A US 114953A US 114953D A US114953D A US 114953DA US 114953 A US114953 A US 114953A
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Prior art keywords
boring
machines
improvement
air
tube
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    • 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
    • B23B29/03407—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing by means of screws and nuts
    • 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
    • Y10T408/44—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product
    • Y10T408/45—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product including Tool with duct
    • Y10T408/453—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product including Tool with duct and means to move gaseous fluid by application of vacuum

Definitions

  • my invention consists First,in so constructing the mechanism of a boringmachine that a current of air can be used in the same for the purpose of expelling the borings or chips;
  • Figure 2 a side elevation of my machine.
  • Figure 3 is a section of the air-cylinder
  • Figure 4 is a cross-section of the two boring-cylinders.
  • A represents the outer tube, which is provided on one end with suitable cutting-rings or teeth.
  • This tube is placed in suitable hearings, and is provided, near its rear end, with a pulley or its equivalent, by means of which power is applied to it, and by means of which it iscaused to turn or revolve.
  • B represents the inner tube, which is stationary, and the mouth of which extends almost to the mouth ofthe'outer or cutting-tube.
  • the outer end of this stationary tube is provided
  • the cylinders D D are provided with suitable piston-heads, which, when operated by suitable machinery, force air through the pipe 0 and into the space between the pipes A and B.
  • Air used in this manner, serves the auxiliary purpose of keeping the cutters and outer tube from heatmg. 1

Description

ROBERT UTTLE.
Improvement in Boring-Machines. N0. 114,953, I Patented May 16,-187i.
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aura 9%iatnz ROBERT LITTLE, OF FREEPORT, ILLINOIS.
Letters Patent No. 114,953, dated May 16, 1871; antedated May 12, 1871.
IMPROVEMENT IN BORlhlG-MACHINES.
The Schedule referred to in these Letters Patent and making part of the same.
To all whom it may concern i 7 Be it known that 1, ROBERT LITTLE, of Freeport, in the county of Stephenson and in the State of Illinois, have invented certain new and useful Improvements in Boring-Machines; and do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the accompanying drawing and to the letters of reference marked thereon making apart of this specification.
The nature of my inventionconsists First,in so constructing the mechanism of a boringmachine that a current of air can be used in the same for the purpose of expelling the borings or chips; and
Second, in two or more cylinders so constructed and used in a boring-machine that air may be forced through one for the purpose of expelling the borings or clippings through the other.
In order to enable others skilled in the art'to which my invention appertains to make and use the same, 'I will now proceed to describe its construction and operation, referring to 'the annexed drawing, in which- Figure 1 is a plan view, and
Figure 2 a side elevation of my machine.
Figure 3 is a section of the air-cylinder, and Figure 4 is a cross-section of the two boring-cylinders.
A represents the outer tube, which is provided on one end with suitable cutting-rings or teeth.
This tube is placed in suitable hearings, and is provided, near its rear end, with a pulley or its equivalent, by means of which power is applied to it, and by means of which it iscaused to turn or revolve.
B represents the inner tube, which is stationary, and the mouth of which extends almost to the mouth ofthe'outer or cutting-tube.
The outer end of this stationary tube is provided The cylinders D D are provided with suitable piston-heads, which, when operated by suitable machinery, force air through the pipe 0 and into the space between the pipes A and B.
The air thus forced in passes forward to the cuttingeud of the outer tube, and then coniing in contact with the cuttings from the bit it carries themout through the inner tube and away from the machine.
Air, used in this manner, serves the auxiliary purpose of keeping the cutters and outer tube from heatmg. 1
The mode of arranging the-air-cyliuders and pipe is not an essential feature of my invention, as it will readily be understood that many difierent modes might be used for accomplishing the same end.
Having thus fully described my invention,
\Vhat I claim as new, and desire to secure by Letters Patent, iso The combination of the inner fixed tube B with the outer rotating tube A and the air-pumping mechanism herein described, all constructed and arranged to operate substantially as and for the purposes herein set forth.
In testimony that I claim the foregoing I have hereunto set my hand this 8th day of March, 1870.
- ROBT. LITTLE.
Witnesses:
J. E. WHEELER, Gno. N. TowsLnn.
US114953D Improvement in boring-machines Expired - Lifetime US114953A (en)

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