US103912A - Improved machine for cutting out grindstones - Google Patents
Improved machine for cutting out grindstones Download PDFInfo
- Publication number
- US103912A US103912A US103912DA US103912A US 103912 A US103912 A US 103912A US 103912D A US103912D A US 103912DA US 103912 A US103912 A US 103912A
- Authority
- US
- United States
- Prior art keywords
- cutters
- grindstones
- cutting out
- stones
- improved machine
- 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
- 239000004575 stone Substances 0.000 description 24
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 210000003746 Feathers Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/20—Setting work or tool carrier along a circular index line; Turret head drilling machines
- B23B39/205—Turret head drilling machines
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S408/00—Cutting by use of rotating axially moving tool
- Y10S408/703—Trepanning
-
- 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
- Y10T408/60—Plural tool-assemblages
-
- 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
- Y10T408/65—Means to drive tool
Definitions
- Figure 2 is ,a plan view of the plate, in which the the annular series of cutter-shafts have ltheir bearings, showing the radial slots to permit the shifting of such bearings and shafts.
- ' Figure 3 is a vertical section -of one of the cutters and its shaft.
- This invention relates to a machine foicutting or sawing'out griudstones, or other circular stones;
- drawinge' p A represents a stout frame, consisting of a bedplate, upon which the stones to be ent are secured by clamps1 and uprights and eross-beams for the support of the operating mechanism.
- B is a vertical shaft, arranged in the center of the frame so as to permit it to slide freely up and down.
- C is a disk of about the diameter of the stones to be cut out, and firmly secured to the lower portionof the shaft.
- Both cutters and drill I propose to armr with dia mond points upon their cutting-edges, to prevent their rapid wear. i
- the drill I prefer to construct inthe form of a tube, slotted upon its lower end, as clearly-shown, so that it will cut a hole ot' the proper sizein the center of the grindstone, leaving a core.
- D represents'a-,horizontal plate of cast-iron or other suitable material, secured to the uprights ofthe frame the proper distance above the bed-plate.
- bearings D2 are arranged, such bearings being made sufficiently long to give a steady support to the shafts which revolve therein.
- the bearings consist of a flanged sleeve or box fitlting suuglyin the slots in the plate, in which they can-be secured at any desired point by a tighteningnut, D, screwed upon the end of the sleeve after it is passed through the slot, its flange abutting against the opposite side of the plate.
- E E, 85o. represent a series of vertical shafts sliding freely up and down in the bearings D?, and provided, upon their lower ends, with cutter-heads El,
- One or more slabs of stone having been sawed to the requisite thickness are secured upon -the bedplate of the frame under the cutters which rest upon the upper one.
- the central shaft B is then revolved at the proper speed, causing all the cutters to revolve in the same manner, and to gradually cnt up the stones under them into a numberof perfectly round stones, with eyes in their center, with the least possible waste.
- the cutters while operating on the stones, feed by their own weight and that ofthe lshafts to which they are attached, but if that is not suiiicient they may be further weighted.
- Vater or water and sand, must be supplied to the cutters in some convenient manner while thus operating.
Description
N. PETERS. PHOTO`LITHOGRAPHER, WASHINGTON. D c.
stent dtiljlirr.
JOSEPH E MITOHELL, OF PHILADELPHIA, PENNSYLVANIA.
Letters Patent No. 103,912, dated Jane 7, 1870.
`IMPROVJEID MACHINE FOR CUTTING OUT GRINDSTONES.
The Schedule referred to in these Letters Patent and making part of the same.
To all whom 'it 'may concern Be it known that "I, JOSEPH E. MITCHELL, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain Improvement-s in `Machines for Cutting out Circular Stones; and I do hereby declare that the following is a t'ull, clear, and exact description thereof, reference being had to the annexed drawing making part of this speeification,in which- Y Figure 1 is a perspective view of my machine, constructed to cut out a series of stones at vone operation.
Figure 2 is ,a plan view of the plate, in which the the annular series of cutter-shafts have ltheir bearings, showing the radial slots to permit the shifting of such bearings and shafts.
'Figure 3 is a vertical section -of one of the cutters and its shaft.
The same letters are used in all the figures in the designation of identieai parts.
This invention relates to a machine foicutting or sawing'out griudstones, or other circular stones; and
My improvements consist in the combination and arrangement of various parts thereof; `as will more fully appear from thefollowing specification and claims.
'lo enable those skilled in the art to make and use my improvements, I will now proceed to describe their construction and operation.
In the annexed drawinge' p A represents a stout frame, consisting of a bedplate, upon which the stones to be ent are secured by clamps1 and uprights and eross-beams for the support of the operating mechanism.
B is a vertical shaft, arranged in the center of the frame so as to permit it to slide freely up and down.
It is revolved by means of a pulley or wheel, Bf, by any convenient power, such wheel being provided with a key fitting Iin a seat in the shaft, so that, although re-volving together, the latter may have the vertical movement above mentioned.
C is a disk of about the diameter of the stones to be cut out, and firmly secured to the lower portionof the shaft. y
Upon its periphery two or more downwardly-projecting cutters, O1, are fastened, and in its center it carries a drill, C?, which may be slightly longer than the cutters, so as to center the stones before the cutters begin to operate upon it.
Both cutters and drill I propose to armr with dia mond points upon their cutting-edges, to prevent their rapid wear. i
The drill I prefer to construct inthe form of a tube, slotted upon its lower end, as clearly-shown, so that it will cut a hole ot' the proper sizein the center of the grindstone, leaving a core.
D represents'a-,horizontal plate of cast-iron or other suitable material, secured to the uprights ofthe frame the proper distance above the bed-plate.
It has a central aperture, with bearing for the passage' of the shaft B, and a series of radial slots, D,
in which the bearings D2 are arranged, such bearings being made sufficiently long to give a steady support to the shafts which revolve therein.
The bearings consist of a flanged sleeve or box fitlting suuglyin the slots in the plate, in which they can-be secured at any desired point by a tighteningnut, D, screwed upon the end of the sleeve after it is passed through the slot, its flange abutting against the opposite side of the plate.
E E, 85o., represent a series of vertical shafts sliding freely up and down in the bearings D?, and provided, upon their lower ends, with cutter-heads El,
-cutters E2, and drills E3, similar, `in all respects, to
such parts as described in connection with the shaft B.
These shafts are driven by the centralshaft B through. the intermediate spur-wheel F on the latter, and spur-wheels G G on theformer, and, in order that all the shaft-sl may rotate at the same velocity, I propose-alwaysto use wheels of equal diameter upon all.
These wheels are supported upon the end of the bea-rings in the plate D, and are attached to their shafts by a feather and spline, as shown.
The operation of the machine may bedescribed as follows:
One or more slabs of stone having been sawed to the requisite thickness, are secured upon -the bedplate of the frame under the cutters which rest upon the upper one.
The central shaft B is then revolved at the proper speed, causing all the cutters to revolve in the same manner, and to gradually cnt up the stones under them into a numberof perfectly round stones, with eyes in their center, with the least possible waste.
The cutters, while operating on the stones, feed by their own weight and that ofthe lshafts to which they are attached, but if that is not suiiicient they may be further weighted.
Vater, or water and sand, must be supplied to the cutters in some convenient manner while thus operating.
Various sizes of circular f,stones can be cut out by this machine by vsimply removing the wheels and outters shown, and substituting larger or' smaller ones, and shifting the bearings D2 to suit the new conditions.
Vhen it is intended to cut stones without a central aperture, the drills are removed.
Having thus described my invention,
'What I claim, and desire t0 secure by Letters Patent isl. The combinatiou'of the shaft B with cutters 'C O1 G2, series of shafts E with similar cutters El E2 E3, and intermediate spur-wheels Fand G, substantially as and for the purpose set forth.
2. In combination with the shaft C and bearings D2, the radial slots D1 in the plate D, substantially as and for the purposeset forth.
Witnesses: J. E. MITCHELL.
FREDK. KA GEEL, A. P. Burana-FORD.
Publications (1)
Publication Number | Publication Date |
---|---|
US103912A true US103912A (en) | 1870-06-07 |
Family
ID=2173397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US103912D Expired - Lifetime US103912A (en) | Improved machine for cutting out grindstones |
Country Status (1)
Country | Link |
---|---|
US (1) | US103912A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2680435A (en) * | 1952-08-21 | 1954-06-08 | Gonzalez Julio | Drilling device |
US4380991A (en) * | 1979-07-30 | 1983-04-26 | Hilti Aktiengesellschaft | Drilling device |
-
0
- US US103912D patent/US103912A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2680435A (en) * | 1952-08-21 | 1954-06-08 | Gonzalez Julio | Drilling device |
US4380991A (en) * | 1979-07-30 | 1983-04-26 | Hilti Aktiengesellschaft | Drilling device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US103912A (en) | Improved machine for cutting out grindstones | |
US145103A (en) | Improvement in machines for facing cylinders | |
US107918A (en) | jones | |
US203993A (en) | Improvement in saw-grinding machines | |
US171259A (en) | Improvement in lathes for turning stone | |
US306477A (en) | Machine for-cutting cylindrical columns from stone | |
US297013A (en) | Tool for boring square holes | |
US243745A (en) | Heading | |
US172267A (en) | Improvement in machines for dressing millstones | |
US118323A (en) | Improvement in machines for dressing stone | |
US218178A (en) | Improvement in machinery for dressing stone, wood | |
US92690A (en) | Improved centrifugal hulling-mill | |
US102625A (en) | Improvement in machine for boring hubs | |
US456317A (en) | Automatic lathe for turning handles | |
US222194A (en) | Improvement in machines for dressing and cutting stone | |
US147110A (en) | Improvement in machines for making buck-saw frames | |
US106308A (en) | Improved stone-sawing machine | |
US102693A (en) | Improved machine for splitting grindstones | |
US108805A (en) | Improvement in apparatus for giving form to wood | |
US353149A (en) | Stone-dressing machine | |
US420379A (en) | Machine for drilling holes in metallic wheels | |
US371654A (en) | dundeedale | |
US99350A (en) | Improvement in groovihg-machine | |
US175768A (en) | Improvement in metal-sawing machines | |
US117170A (en) | Improvement in machines for boring wheel-hubs for setting boxes |