US108374A - Improvement in drills and holders - Google Patents
Improvement in drills and holders Download PDFInfo
- Publication number
- US108374A US108374A US108374DA US108374A US 108374 A US108374 A US 108374A US 108374D A US108374D A US 108374DA US 108374 A US108374 A US 108374A
- Authority
- US
- United States
- Prior art keywords
- frame
- drills
- improvement
- holders
- drill
- 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
- 241000152160 Ira Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
- B23B35/005—Measures for preventing splittering
-
- 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
- Y10T408/561—Having tool-opposing, work-engaging surface
- Y10T408/5623—Having tool-opposing, work-engaging surface with presser foot
Definitions
- Figure l represents a vertical longitudinal section of my improved drill and holder.
- Fig. 2 is an end elevation of the same.
- Fig. 3 is a side view, partly in section, ot' a modification of the same.
- Fig. 4 is an end view of said modication.
- My invention has for its object improvement in drills for boring metallic or other articles; and consists in an improved combination and arrangement of parts, as particularly specified in the claims.
- a in the drawing represents the frame in which my drill is to be supported.
- a that projects from the frame is hung a hollow screw, B, which has a ratchet-wheel, b, at its outer end.
- the drill C is the drill holder or shaft. It has itsbearings in the tube B, as shown in Fig. l, and can be revolved loosely in the same.
- the shaft O has a crank, D, pivoted to its outer end to turn loose on the same, and carries a ratchet-wheel, c, to which motion is imparted by a sp1-in g-pawl, d, that is pivoted to the crank. By revolving the crank inthe right direction it will, by means of the pawl d, impart similar rotary motion to the shaft C.
- a lever, E which carries a click, e, and is held down by a spring, f.
- the click e is in contact with the edge of the wheel b.
- a pin, g, projecting from the crank D strikes the lever E once during every revolution of the crank, and by swin gin g said lever moves the click, so as to impart motion to the wheel b and tube B.
- Thelatter is thus gradually screwed forward to feed the drill in the desired degree.
- the lever E is curved, shown, and the pin g crowds it toward the wheel b, and passes then over its end. Then the lever E is released, it is at once thrown down again by the Springf.
- the frame A is made to slide upon aframe, F, which carries a screw, J, by means of which the frame A can be moved nearer to or farther away from an ear, h, that projects from the frame F.
- the frame A has a similar projeetin g ear, i. Between the ears h i the article to be bored can be clamped, as in a vise.
- the frame G has, between a pair of vertical postshij, a sliding concave bed, H, for supporting the shaft to be bored.
- the bed H is vertically adjustable by a screw, K.
- a screw, Z serves to hold the shaft down upon the bed H.
- the centering device G H with its setscrews and other appliances, for use conjointly with the drilling device, interchangeable with the frame F, as described.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Description
UNITED STATES PATENT OFFICE.
IMPROVEMENT IN DRILLS AND HOLDERS.
Specification forming part of Letters Patent No. 108,374, dated October 18, 1876.
To all whom it may concern:
Be it known that I, IRA MCLAUGHLIN, of East Arlington, in the county of' Bennington and State of Vermont, have invented a new and Im proved Drill and Holder; and I do hereby declare that the following is a full, clear, and exact description thereof', which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing, forming part of this specification.
Figure l represents a vertical longitudinal section of my improved drill and holder. Fig. 2 is an end elevation of the same. Fig. 3 is a side view, partly in section, ot' a modification of the same. Fig. 4 is an end view of said modication.
Similar letters of referenceindieate corresponding part-s.
My invention has for its object improvement in drills for boring metallic or other articles; and consists in an improved combination and arrangement of parts, as particularly specified in the claims.
A in the drawing represents the frame in which my drill is to be supported. In an ear, a, that projects from the frame is hung a hollow screw, B, which has a ratchet-wheel, b, at its outer end.
C is the drill holder or shaft. It has itsbearings in the tube B, as shown in Fig. l, and can be revolved loosely in the same. The shaft O has a crank, D, pivoted to its outer end to turn loose on the same, and carries a ratchet-wheel, c, to which motion is imparted by a sp1-in g-pawl, d, that is pivoted to the crank. By revolving the crank inthe right direction it will, by means of the pawl d, impart similar rotary motion to the shaft C.
To the frame A is pivoted a lever, E, which carries a click, e, and is held down by a spring, f. The click e is in contact with the edge of the wheel b. A pin, g, projecting from the crank D, strikes the lever E once during every revolution of the crank, and by swin gin g said lever moves the click, so as to impart motion to the wheel b and tube B. Thelatter is thus gradually screwed forward to feed the drill in the desired degree.
The lever E is curved, shown, and the pin g crowds it toward the wheel b, and passes then over its end. Then the lever E is released, it is at once thrown down again by the Springf.
The frame A is made to slide upon aframe, F, which carries a screw, J, by means of which the frame A can be moved nearer to or farther away from an ear, h, that projects from the frame F. The frame A has a similar projeetin g ear, i. Between the ears h i the article to be bored can be clamped, as in a vise.
For centering shafts another frame, G, is used in place ofF. The frame G has, between a pair of vertical postshij, a sliding concave bed, H, for supporting the shaft to be bored. The bed H is vertically adjustable by a screw, K. A screw, Z, serves to hold the shaft down upon the bed H.
Having thus described my invention, I claim as new and desire to secure. by Letters Patent- 1. The table A, having the ears i and a, together with the drill-shaft C, combined with the frame F, which has the ear l and the screw J, all constructed substantially as described.
2. The centering device G H, with its setscrews and other appliances, for use conjointly with the drilling device, interchangeable with the frame F, as described.
IBA MCLAUGHLIN.
Witnesses:
W. M. GALUsHA, AGNES M. PRATT.
Publications (1)
Publication Number | Publication Date |
---|---|
US108374A true US108374A (en) | 1870-10-18 |
Family
ID=2177848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US108374D Expired - Lifetime US108374A (en) | Improvement in drills and holders |
Country Status (1)
Country | Link |
---|---|
US (1) | US108374A (en) |
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0
- US US108374D patent/US108374A/en not_active Expired - Lifetime
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