US1571620A - Drill holder - Google Patents

Drill holder Download PDF

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Publication number
US1571620A
US1571620A US562579A US56257922A US1571620A US 1571620 A US1571620 A US 1571620A US 562579 A US562579 A US 562579A US 56257922 A US56257922 A US 56257922A US 1571620 A US1571620 A US 1571620A
Authority
US
United States
Prior art keywords
bar
flue
drill
drill holder
boiler
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
US562579A
Inventor
Fred M Bettes
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.)
Erie City Iron Works
Original Assignee
Erie City Iron Works
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 Erie City Iron Works filed Critical Erie City Iron Works
Priority to US562579A priority Critical patent/US1571620A/en
Application granted granted Critical
Publication of US1571620A publication Critical patent/US1571620A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B25H1/0057—Devices for securing hand tools to the work
    • B25H1/0064—Stands attached to the workpiece
    • 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
    • Y10T408/55—Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/557—Frictionally engaging sides of opening in work
    • 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
    • Y10T408/91—Machine frame
    • Y10T408/93—Machine frame including pivotally mounted tool-carrier

Definitions

  • This invention is designed to improve that type of drill holder, commonly called an old man.
  • This tool ordinarily consists of a bar that can be inserted into and wedged in a boiler flue. It has an upturned arm forming a support backing the drill. Vith the old man in common use flues are very often injured by the wedging of the bar in the flue.
  • I provide the bar with means which will so engage the tube as to hold the bar in place and at the same time will not injure the tube, thus increasing the convenience of use of the bar and decreasing the chance for injury to the tube.
  • Fig. 1 shows a side elevation of the bar.
  • Fig. 2 an end elevation of the bar.
  • Fig. 3 an elevation of the bar in place, the boiler being shown partly in section.
  • a horizontal bar 3 of the old man is adapted to be inserted in a flue. This is preferably made with this construction as small as consistent with the pressure which is put upon it.
  • An arm 4 extends at an angle to the bar and a drill 5 is backed by the arm 4 and operates against the head of the boiler for drilling brace holes in the head of the boiler.
  • a collar 6 is detachably mounted on the end of the bar ordinarily held in place by a pin shown in dotted lines in Fig. 1.
  • a second collar 7 is slidingly mounted on the bar and is adapted to be locked in adjusted position by a set screw 8.
  • These-collars preferably have cylindrical surfaces con forming approximately to the inner surface of the tube and they are so spaced apart that the canting action of the arm 4 will give 'sutlicient engagement to the walls of the flue to hold the bar in place.
  • l Vhat I claim as new is 1.
  • a drill brace the combination of a bar; a support extending at an angle to the bar; and spaced collars fixed on the bar adapted to engage the walls of a flue, one collar being pressed into engagement with a wall of the fine at one side of the axis of the flue and the other collar pressing the wall of the flue at the opposite side of the axis through the canting action of the support.
  • a drill brace the combination of a bar; a support extending at an angle to the bar; and spaced collars on the bar adapted to engage the walls of a flue, one of the col lars being adjustable lengthwise of the bar and one collar being pressed into engagement with a wall of the flue at one sideof the axis of the flue and the other collar pressing the wall of the flue at the opposit side of the axis through the canting action of the support.

Description

Feb. 2 1926.
- F. M. BETTES DRI LL HOLDER /.Filed May 22, 1922 IIIIIWII Patented Feb. 2, 1926.
UNITE FRED M. BETTES, OF EBIE, PENNSYLVANIA, ASSIGNOR TO ERIE CITY IRON WORKS, OF ERIE, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.
DRILL HOLDER.
Application filed May 22, 1922.
T 0 all whom it may concern:
Be it known that I, F Rno M. Bn'rrns, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented new and useful IIIIPIOVQHIGDCS in Drill Holders, of which the following is a specification.
This invention is designed to improve that type of drill holder, commonly called an old man. This tool ordinarily consists of a bar that can be inserted into and wedged in a boiler flue. It has an upturned arm forming a support backing the drill. Vith the old man in common use flues are very often injured by the wedging of the bar in the flue. With my invention I provide the bar with means which will so engage the tube as to hold the bar in place and at the same time will not injure the tube, thus increasing the convenience of use of the bar and decreasing the chance for injury to the tube. I
The invention is illustrated in the accom panying drawings as follows:
Fig. 1 shows a side elevation of the bar.
Fig. 2 an end elevation of the bar.
Fig. 3 an elevation of the bar in place, the boiler being shown partly in section.
1 marks the boiler, and 2 the flues in the boiler. A horizontal bar 3 of the old man is adapted to be inserted in a flue. This is preferably made with this construction as small as consistent with the pressure which is put upon it. An arm 4 extends at an angle to the bar and a drill 5 is backed by the arm 4 and operates against the head of the boiler for drilling brace holes in the head of the boiler.
Serial No. 562,579.
A collar 6 is detachably mounted on the end of the bar ordinarily held in place by a pin shown in dotted lines in Fig. 1. A second collar 7 is slidingly mounted on the bar and is adapted to be locked in adjusted position by a set screw 8. These-collars preferably have cylindrical surfaces con forming approximately to the inner surface of the tube and they are so spaced apart that the canting action of the arm 4 will give 'sutlicient engagement to the walls of the flue to hold the bar in place.
l Vhat I claim as new is 1. In a. drill brace, the combination of a bar; a support extending at an angle to the bar; and spaced collars fixed on the bar adapted to engage the walls of a flue, one collar being pressed into engagement with a wall of the fine at one side of the axis of the flue and the other collar pressing the wall of the flue at the opposite side of the axis through the canting action of the support.
2. In a drill brace, the combination of a bar; a support extending at an angle to the bar; and spaced collars on the bar adapted to engage the walls of a flue, one of the col lars being adjustable lengthwise of the bar and one collar being pressed into engagement with a wall of the flue at one sideof the axis of the flue and the other collar pressing the wall of the flue at the opposit side of the axis through the canting action of the support.
In testimony whereof I have hereunto set my hand.
FRED M. BETTES.
US562579A 1922-05-22 1922-05-22 Drill holder Expired - Lifetime US1571620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US562579A US1571620A (en) 1922-05-22 1922-05-22 Drill holder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US562579A US1571620A (en) 1922-05-22 1922-05-22 Drill holder

Publications (1)

Publication Number Publication Date
US1571620A true US1571620A (en) 1926-02-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
US562579A Expired - Lifetime US1571620A (en) 1922-05-22 1922-05-22 Drill holder

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003848A1 (en) * 1986-11-28 1988-06-02 Ab Andarosa A method for fastening a detail onto a surface of a building structure, and a jig for making a hole for carrying out the method
US5597276A (en) * 1994-07-29 1997-01-28 Yokell; Stanley Apparatus for venting tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003848A1 (en) * 1986-11-28 1988-06-02 Ab Andarosa A method for fastening a detail onto a surface of a building structure, and a jig for making a hole for carrying out the method
US5597276A (en) * 1994-07-29 1997-01-28 Yokell; Stanley Apparatus for venting tubes

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