US130880A - Improvement in bolt-cutters - Google Patents
Improvement in bolt-cutters Download PDFInfo
- Publication number
- US130880A US130880A US130880DA US130880A US 130880 A US130880 A US 130880A US 130880D A US130880D A US 130880DA US 130880 A US130880 A US 130880A
- Authority
- US
- United States
- Prior art keywords
- bolt
- scroll
- stock
- dies
- plate
- 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
- 238000005520 cutting process Methods 0.000 description 6
- 210000001847 Jaw Anatomy 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
Images
Classifications
-
- 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
- B23B29/03425—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing by means of gears and racks
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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
- Y10T279/00—Chucks or sockets
- Y10T279/19—Radially reciprocating jaws
- Y10T279/1926—Spiral cam or scroll actuated
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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
- Y10T408/83—Tool-support with means to move Tool relative to tool-support
- Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
- Y10T408/856—Moving means including pinion engaging rack-like surface of Tool
Definitions
- My invention consists of a peculiar arrangement of the stock, scroll-plate, and cap of a chuck for holding and adjusting screw-cutting dies or tap-holding jaws, whereby provision is made for the application of a scale, adjustable stop-bolt, and a stud-pin for arresting the dies as they close upon the bolt at any predetermined point, for bolts of any sizes.
- My invention also consists of a combination, with the said stock, scroll-plate, and cap, arranged as above stated, of the said adjustable stop-bolt, stud-pin, and scale, all as hereinafter described.
- Figure 1 is a partial side elevation of the cutter.
- Fig. 2 is a face view of the scrollplate, part of the stock, and the dies.
- Fig. 3 is a section through the complete instrument on the line as w of Fig. 2; and
- Fig. 4 is a perspective view of a die such as will be substituted for the screw-cutting dies shown in Figs. 2 and 3 when the instrument is to be used for holding taps, for which it is also applicable.
- A represents the stock, which fits upon the mandrel of the lathe in the ordinary way of applying chucks.
- B is the shifting scroll-plate for moving the dies C out and in, which said dies engage the scroll-of the said plate, which is shown clearly in Fig. 2, in the same manner that the dies of ordinary scroll-chucks do.
- the stocks of the said dies work in under-cut radial grooves in the part A of the stock shown in Fig. 2.
- D is the cap inclosing the dies and confining the scroll-plate B on the stock, being bolted to said stock, as shown at F.
- This part A of the stock is considerably smaller than the part A, and the scroll-plate fits on it,
- a flange, H, of the said scroll-plate overlaps the periphery of the stock and extends far enough to the rear of the cap to provide room for the holes I, by which to introduce a lever, K, for turning it.
- the face of this flange, which is flush with the face of the cap, is provided with a scaleoflength measure, as shown at L, Fig. 1, whereby the distance it is necessary to move the scroll-plate backward to open the dies enough to discharge the finished bolt may be readily determined by the adjustable stop-stud, by which the movement of the said disk is arrested at the right point in closing the dies. M is this adjustable stop-stud.
- a bolt, a, and a nut, 12 are attached to the face of the stock A by a bolt, a, and a nut, 12, the latter being fitted in an under-cut groove, N, in the face of the stock, and'adapted to be secured at any point by screwing the nut up against the undercut walls of the groove, and to be shifted along the groove either way when loosened by unscrewing the bolt.
- P is a stud-pin projecting from the scroll-plate across the path of the stop-stud M, so as to come against it and arrest the closing of the dies when they have closed sufficiently for the bolt to be cut.
- the dies are first closed sutficiently for cut ting the bolts in hand. Then the said stopbolt M is adjusted around against the stud-pin P, so that the scroll-plate will be stopped at the same point every time when the dies are closed after being opened to release the finished bolts, thus securing exact uniformity of size; and in opening the dies the scale will indicate how much the scroll-plate must be turned back of the stop-stud to open far enough to release the finished bolts.
- Patent- 1 The stock A, scroll-plate B, and cap D, constructed, arranged, and combined together substantially as specified.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
I w. F. STRONG; Improvement in Bolt-Cutters. 130,880.
( ted Aug. 27,1872.
w; fifiitunsm: 3mm:
@ttumg UNITED STATES WILLIAM F. STRONG, OF CHARLESTON, SOUTH CAROLINA.
IMPROVEMENT IN BOLT-CUTTERS.
Specification forming part of Letters Patent No. 130,530, dated August 27, 1872.
Specification describing a new and Improved Bolt-Cutter, invented by WILLIAM F. STRONG, of Charleston, in the county of Charleston and State of South Carolina. My invention consists of a peculiar arrangement of the stock, scroll-plate, and cap of a chuck for holding and adjusting screw-cutting dies or tap-holding jaws, whereby provision is made for the application of a scale, adjustable stop-bolt, and a stud-pin for arresting the dies as they close upon the bolt at any predetermined point, for bolts of any sizes. My invention also consists of a combination, with the said stock, scroll-plate, and cap, arranged as above stated, of the said adjustable stop-bolt, stud-pin, and scale, all as hereinafter described.
Figure 1 is a partial side elevation of the cutter. Fig. 2 is a face view of the scrollplate, part of the stock, and the dies. Fig. 3 is a section through the complete instrument on the line as w of Fig. 2; and Fig. 4 is a perspective view of a die such as will be substituted for the screw-cutting dies shown in Figs. 2 and 3 when the instrument is to be used for holding taps, for which it is also applicable.
Similar letters of reference indicate corresponding parts.
' A represents the stock, which fits upon the mandrel of the lathe in the ordinary way of applying chucks. B is the shifting scroll-plate for moving the dies C out and in, which said dies engage the scroll-of the said plate, which is shown clearly in Fig. 2, in the same manner that the dies of ordinary scroll-chucks do. The stocks of the said dies work in under-cut radial grooves in the part A of the stock shown in Fig. 2. D is the cap inclosing the dies and confining the scroll-plate B on the stock, being bolted to said stock, as shown at F. This part A of the stock is considerably smaller than the part A, and the scroll-plate fits on it,
as shown at G, with the side against the face A of said stock; and a flange, H, of the said scroll-plate overlaps the periphery of the stock and extends far enough to the rear of the cap to provide room for the holes I, by which to introduce a lever, K, for turning it. The face of this flange, which is flush with the face of the cap, is provided with a scaleoflength measure, as shown at L, Fig. 1, whereby the distance it is necessary to move the scroll-plate backward to open the dies enough to discharge the finished bolt may be readily determined by the adjustable stop-stud, by which the movement of the said disk is arrested at the right point in closing the dies. M is this adjustable stop-stud. It is attached to the face of the stock A by a bolt, a, and a nut, 12, the latter being fitted in an under-cut groove, N, in the face of the stock, and'adapted to be secured at any point by screwing the nut up against the undercut walls of the groove, and to be shifted along the groove either way when loosened by unscrewing the bolt. P is a stud-pin projecting from the scroll-plate across the path of the stop-stud M, so as to come against it and arrest the closing of the dies when they have closed sufficiently for the bolt to be cut.
The dies are first closed sutficiently for cut ting the bolts in hand. Then the said stopbolt M is adjusted around against the stud-pin P, so that the scroll-plate will be stopped at the same point every time when the dies are closed after being opened to release the finished bolts, thus securing exact uniformity of size; and in opening the dies the scale will indicate how much the scroll-plate must be turned back of the stop-stud to open far enough to release the finished bolts.
Having thus described my invention, I claim as new and desire to secure by Letters. Patent- 1. The stock A, scroll-plate B, and cap D, constructed, arranged, and combined together substantially as specified.
2. The combination of the adjustable stopstud M and stud-pin P with the stock A and scroll-plate B, the stock having an under-cut groove, N, for the said stop-stud, all substantially as specified.
3. The combination of the scale with the scroll-disk and the stopstud M, substantially as specified.
WILLIAM F. STRONG. Witnesses:
AROHD. CAMERON, R. O. BARKLEY.
Publications (1)
Publication Number | Publication Date |
---|---|
US130880A true US130880A (en) | 1872-08-27 |
Family
ID=2200297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US130880D Expired - Lifetime US130880A (en) | Improvement in bolt-cutters |
Country Status (1)
Country | Link |
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US (1) | US130880A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2542857A (en) * | 1949-10-29 | 1951-02-20 | Union Mfg Co | Work holding chuck |
US3127710A (en) * | 1962-07-03 | 1964-04-07 | Progressive Tool & Mfg Company | Work-engaging and positioning device for machine tools |
US20100171652A1 (en) * | 2009-01-06 | 2010-07-08 | Gutt Gregory M | Local clock frequency calibration using low earth orbit (leo) satellites |
-
0
- US US130880D patent/US130880A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2542857A (en) * | 1949-10-29 | 1951-02-20 | Union Mfg Co | Work holding chuck |
US3127710A (en) * | 1962-07-03 | 1964-04-07 | Progressive Tool & Mfg Company | Work-engaging and positioning device for machine tools |
US20100171652A1 (en) * | 2009-01-06 | 2010-07-08 | Gutt Gregory M | Local clock frequency calibration using low earth orbit (leo) satellites |
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