US37189A - Improved mode of punching countersunk holes - Google Patents
Improved mode of punching countersunk holes Download PDFInfo
- Publication number
- US37189A US37189A US37189DA US37189A US 37189 A US37189 A US 37189A US 37189D A US37189D A US 37189DA US 37189 A US37189 A US 37189A
- Authority
- US
- United States
- Prior art keywords
- punching
- punch
- countersunk holes
- hole
- improved mode
- 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
- 238000004080 punching Methods 0.000 title description 10
- 239000002184 metal Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 238000007747 plating Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000001771 impaired Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F3/00—Severing by means other than cutting; Apparatus therefor
- B26F3/002—Precutting and tensioning or breaking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1818—Means for removing cut-out material or waste by pushing out
-
- 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
- Y10T225/00—Severing by tearing or breaking
- Y10T225/10—Methods
-
- 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
- Y10T225/00—Severing by tearing or breaking
- Y10T225/30—Breaking or tearing apparatus
-
- 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
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5147—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool
-
- 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
- Y10T83/00—Cutting
- Y10T83/04—Processes
-
- 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
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9411—Cutting couple type
- Y10T83/9423—Punching tool
- Y10T83/9425—Tool pair
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
' UNITED STATES PATENT OFFICE.
JAMES V. WESTLAKE, OF ST. LOUIS, MISSOURI.
IMPROVED MODE OF PUNCHING COUNTERSUNK HOLES.
Specification forming part of Letters Patent No. 37,189., dated December 16, 1862.
To all whom it may concern:
Be it known that 1, J AMES V. WEs'rLAKE, of St. Louis city and county, and State of Missouri, have invented a new and useful Improvement in Punching Metals; and I do hereby declare that the following is a full, clear, and accurate description of the same, reference beinghad to the accompanying drawlngs, forming part ot' this specification, in which- Figure 1 shows a punch and die capable of performing my invention. Fig. 2 shows the same in operation. Fig. 3 is a top view of the die; Fig. 4, an end View of the punch. Fig. 5 shows a plate of metal punched according to my invention, and with the head ot' a lbolt count-ersunk in a conical perforation formed according to my invention. Fig. 6 shows the blank piece of metal which is punched out of the plate.
Similar letters of reference in the several figures indicate corresponding parts.
To enable others skilled in the art to make and use myinvention, Iwill proceed to describe the same more minutely.
A A in the drawings represent a circular punch, with its end a flat, and with a slight taper from said end up to the shoulder b or to the enlarged portion A1, which is cylindrical from the shoulder b to its upper terminus and iiat on top. The diameter of the end c for a given-size hole may be nine-sixteenths of an inchthat is, for a hole which increases gradually from nine-sixteenths of aninch diameter to one inch diameter. This proportion may of course be varied accordingly as it may be desired to vary the iiare or countersink ofthe hole or to the thickness of the plate or bar.
B B represents the die to be set in a solid bed-plate, and with the punch-hole B1 about one inch diameter, if for use with a punch, A A, nine-sixteenths of an inch in diameter.
The punch is set to Work centrally relatively to the hole in the die, and the plate or bar of metal-say, three-quarters of an inch thickrests flat upon the die, as indicated at C, Fig. 2.
The power is applied on the punchso as to cause it to enter the bar O about one-eighth of an inch, making the hole the same size of the punch to that depth, and then it breaks the iron on straight radiating lines from the outer diameterof the end of the punch to the outer circle of the hole in the die; or, in other Words, the hole is punched by actual contact of the punch With the plate or bar along about one-eighth of its thickness, and then the metal blank, Fig. 6, is removed by simply the thrust of the punch.
It will be observed that the holes punched by my invention are cylindrical along a portionof their smallest diameter, as indicated between the letters d d, and therefore a portion of the fastening bolts of the plating or bars below their heads extends into 'the plating or bars, and thus greater strength in the bolts secured, as the plating acts as a support or stay to them below or beyond their heads. This is not the case with holes which are drilled on a taper from top to bottom.
My invention enables me to punch all ofthe holes to a uniform size, Whereas with a drill there is a Variation experienced on account of the Wearing away ofthe drill from use.
My invention will save the expense of three or four cents ou each hole which has to be drilled, and will greatly expedite the construction of iron-clad armor for our naval ships, Sac.; and from experience with it in the erection of the gunboat Essex, at St. Louis, I am satisfied that it will answer all-the purposes of machinery required for drilling countersunk holes if not of an extraordinary size.
It is obvious that circular, elliptic, square, and any other desired geometrical form ot' hole might be punched according to my invention by varying` the shape of the punch and die;
therefore I do not limit myself to forms and shapes.
l do not claim to be the inventor of a solid blunt punch, nor of a die with a hole large enough to admit such punch down through it; nor do I claim theA discovery that such punch and die incidentally impaired the shape of the hole in the metal by making it slightly taper, instead of truly cylindric, but my invention consists in the discovery that by eX- tending the diameter of the hole in the die the countersunk holes required for the taper heads of bolts and like fastenings could be made by a punching, instead of a boring, operation, and in the application of this discovery to the making of such countersunk holes for that purpose; therefore,
What I do claim, and desire to secure by Letters Paten t, is
The punching ofcountersunk holes in metal, so that the same shall be applicable to the practical use of receiving the taper or inverted cone-shaped heads of bolts and other like fastenings, substantially as described.
Witness my hand and seal in the matter of my application for a patent for an improved mode of punching countersunk holes.
JAMES V. WESTLAKE.
Witnesses:
SOL. SCOTT, Jr., LIBERTY WMTE.
Publications (1)
Publication Number | Publication Date |
---|---|
US37189A true US37189A (en) | 1862-12-16 |
Family
ID=2106766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US37189D Expired - Lifetime US37189A (en) | Improved mode of punching countersunk holes |
Country Status (1)
Country | Link |
---|---|
US (1) | US37189A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2490926A (en) * | 1945-06-01 | 1949-12-13 | Remington Arms Co Inc | Blanking and cupping die unit |
US2754907A (en) * | 1950-10-02 | 1956-07-17 | Olin Mathieson | Picking up scrap ring resulting from extrusion of tubular articles |
US3142115A (en) * | 1960-07-15 | 1964-07-28 | Caltexa Trust | Method and apparatus for manufacturing annular workpieces of metal, particularly steel, to be subsequently shaped by cold forging |
US3152628A (en) * | 1958-07-17 | 1964-10-13 | Multifastener Corp | Clinch nut |
US3176378A (en) * | 1962-04-09 | 1965-04-06 | Janiszewski Kasimir | Method of making a bushing socket in a platen |
US3228094A (en) * | 1964-10-21 | 1966-01-11 | Square D Co | Method of making a neutral wire connector |
US3271988A (en) * | 1963-04-24 | 1966-09-13 | Wagner Electric Corp | Method of forming a hole in the wall of a hollow workpiece |
US6116487A (en) * | 1996-04-26 | 2000-09-12 | Sony Corporation | Method and apparatus for sweeping overflowed resin on semiconductor device manufacturing process |
US20070152117A1 (en) * | 2006-01-04 | 2007-07-05 | Byrd Randel L | Viscoelastic Mounting Device |
-
0
- US US37189D patent/US37189A/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2490926A (en) * | 1945-06-01 | 1949-12-13 | Remington Arms Co Inc | Blanking and cupping die unit |
US2754907A (en) * | 1950-10-02 | 1956-07-17 | Olin Mathieson | Picking up scrap ring resulting from extrusion of tubular articles |
US3152628A (en) * | 1958-07-17 | 1964-10-13 | Multifastener Corp | Clinch nut |
US3142115A (en) * | 1960-07-15 | 1964-07-28 | Caltexa Trust | Method and apparatus for manufacturing annular workpieces of metal, particularly steel, to be subsequently shaped by cold forging |
US3176378A (en) * | 1962-04-09 | 1965-04-06 | Janiszewski Kasimir | Method of making a bushing socket in a platen |
US3271988A (en) * | 1963-04-24 | 1966-09-13 | Wagner Electric Corp | Method of forming a hole in the wall of a hollow workpiece |
US3228094A (en) * | 1964-10-21 | 1966-01-11 | Square D Co | Method of making a neutral wire connector |
US6116487A (en) * | 1996-04-26 | 2000-09-12 | Sony Corporation | Method and apparatus for sweeping overflowed resin on semiconductor device manufacturing process |
US20070152117A1 (en) * | 2006-01-04 | 2007-07-05 | Byrd Randel L | Viscoelastic Mounting Device |
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