US433334A - Screw-cutting die - Google Patents
Screw-cutting die Download PDFInfo
- Publication number
- US433334A US433334A US433334DA US433334A US 433334 A US433334 A US 433334A US 433334D A US433334D A US 433334DA US 433334 A US433334 A US 433334A
- Authority
- US
- United States
- Prior art keywords
- cutting
- die
- screw
- cutting die
- enggren
- 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 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
- B23G5/04—Dies
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- 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
- Y10T408/89—Tool or Tool with support
- Y10T408/904—Tool or Tool with support with pitch-stabilizing ridge
Definitions
- Thisinvention relates to certain new and useful improvements in dies for cutting screws; and it has for its object to provide an improved die having a cut-out portion or space back of the cutting-points hollowed ont in such manner that the friction is materially reduced at that part of the die without giving it any cutting-edge at this point, sothat in the backward movement of the die no shavings are formed thereby; hence nothing to drag under and break and destroy the cutting-edge.
- A designates the die formed with the cutting points or edges B, between which are formed the spaces O to receive the cuttings or shavings made in the process of cutting the screw.
- Each cutting' point or edge is cut away, as shown at D, to form aspace, rounded, as shown, to dispense with or lessen friction,so that the die maybe turned backward with less exertion and to prevent it making any shavings in that part of the die. It will thus be seen that any shavings that are formed in cutting the screw will be cleaned awayon turning the die backwardby the tooth back of the one that made the shaving, and as there are no shavings formed in the hollow back of the cutting-edge there will be nothing'to drag under and break the cutting-edge.
- the die described consisting of a plate having an opening therein, the cutting portions lrthe spaces D between each pair of eutters, and the spaces O, as set forth.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
(No Model.)
G. L. ENGGREN. SGR-.EW CUTTING DIE.v
No. 433,334. Patented July 29, 1890.
UNITED STATES PATENT OFFICE.A
GUS'IAV L. ENGGREN, OF BROOKLYN, NEW YORK.
SCREW-CUTTING DIE.
SPECFICATION forming part of Letters Patent No. 433,334, dated July 29, 1890.
Application filed November l2, 1889. Serial No. 330,015. (No model.)
To all whom it may concern:
Be it known that I, GUSTAV L. ENGGREN, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Screw-Cutting Dies; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawing, making a part of this specification, and to the letters of reference marked thereon.
Thisinvention relates to certain new and useful improvements in dies for cutting screws; and it has for its object to provide an improved die having a cut-out portion or space back of the cutting-points hollowed ont in such manner that the friction is materially reduced at that part of the die without giving it any cutting-edge at this point, sothat in the backward movement of the die no shavings are formed thereby; hence nothing to drag under and break and destroy the cutting-edge.
The novelty resides in the peculiarities of construction of the die, as more fully hereinafter described, shown in the drawing, and then particularly pointed out in the appended claim.
The invention is clearly illustrated in the accompanying drawing, which is a perspective View ot my improved die.
Referring to said drawing by letter, A designates the die formed with the cutting points or edges B, between which are formed the spaces O to receive the cuttings or shavings made in the process of cutting the screw. Each cutting' point or edge is cut away, as shown at D, to form aspace, rounded, as shown, to dispense with or lessen friction,so that the die maybe turned backward with less exertion and to prevent it making any shavings in that part of the die. It will thus be seen that any shavings that are formed in cutting the screw will be cleaned awayon turning the die backwardby the tooth back of the one that made the shaving, and as there are no shavings formed in the hollow back of the cutting-edge there will be nothing'to drag under and break the cutting-edge.
The die described, consisting of a plate having an opening therein, the cutting portions lrthe spaces D between each pair of eutters, and the spaces O, as set forth.
In testimony that I claim the above I have hereunto subscribed myname in the presence of two witnesses.
GUSTAV L. ENGGREN. vWitnesses:
C. A. ENGGREN, H. MCLAUGHLIN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US433334A true US433334A (en) | 1890-07-29 |
Family
ID=2502237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US433334D Expired - Lifetime US433334A (en) | Screw-cutting die |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US433334A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3066713A (en) * | 1959-10-14 | 1962-12-04 | Wilcox Bradford | Hand nutcracker |
-
0
- US US433334D patent/US433334A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3066713A (en) * | 1959-10-14 | 1962-12-04 | Wilcox Bradford | Hand nutcracker |
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