US1353902A - Driving mechanism for grinding-tools - Google Patents

Driving mechanism for grinding-tools Download PDF

Info

Publication number
US1353902A
US1353902A US287271A US28727119A US1353902A US 1353902 A US1353902 A US 1353902A US 287271 A US287271 A US 287271A US 28727119 A US28727119 A US 28727119A US 1353902 A US1353902 A US 1353902A
Authority
US
United States
Prior art keywords
teeth
pinion
spindle
gear
grinding
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
Application number
US287271A
Inventor
Charles W Heberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US287271A priority Critical patent/US1353902A/en
Application granted granted Critical
Publication of US1353902A publication Critical patent/US1353902A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor
    • B24B15/08—Machines or devices designed for grinding seat surfaces; Accessories therefor for grinding co-operating seat surfaces by moving one over the other
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18416—Rotary to alternating rotary
    • Y10T74/18424—Mangle connections
    • Y10T74/18448—Mutilated gearing connections
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19191—Alternating rotary
    • Y10T74/19195—Progressive

Definitions

  • the object of this invention is to provide anew and improved form of grinding tool for reseating valves. 2
  • Figure 1 is a side elevation of the grinding tool.
  • Fig. 2 is an end elevation of the grinding tool.
  • Fig. 3 is a plan view of one of the bevel pinions which intermittently rotate the spindle of the grinding tool.
  • the grinding tool shown in the drawing operates to oscillate a valve in opposite directions on its seat and progressively advances the valve periodically in one direction. This movement given to the valve by the grinding tool insures an even grinding and accurate seating of the valve.
  • the grinding tool comprises a frame 1 having a spindle 2 mounted to rotate therein longitudinally thereof.
  • Two openings 3 and 4 are provided in the-frame 1 in which the bevel pinions 5 and 6, respectively, rotate, being mounted on the spindle 2 and rotating therewith.
  • Centrally mounted to rotate between the bevel pinions '5 and 6 is the mutilated bevel gear 7, the teeth of which are adapted to mesh with the teeth on the pinions 5 and 6.
  • the bevel gear 7 is mounted to rotate on the stud 8 provided in the frame 1.
  • a crank 9 having a handle 10 is fastened to the back of the bevel gear 7, through which crank the gear is rotated.
  • the frame 1 has a stationary handle 11 provided at the top by means of which the tool is held in an upright position and through which a slight downward pressure may be exerted on the valve by the operator while the valve is oscillated by the spindle 2 on the rotation of the crank 9.
  • the bevel gear 7 is mutilated and only a segment thereof is provided with teeth.
  • this segment is such that when the teeth on one end of the segment engage the teeth of one of the pinions 5 or 6 the teeth on the other end of the segment disengage from the teeth of the other pinion.
  • the mutilated gear 7 will mesh with but one of the pinions 5 or 6 at a time and when it meshes with the pinion 6 it will rotate the spindle 2 in one direction, while when it meshes with the pinion 5 it will rotate the spindle in the reverse direction.
  • the spindle 2 In order to give the valve a progressive motion the spindle 2 must be given a greater angular turn in one direction than in the reverse direction.
  • the mutilated pinion 5 This is accomplished by the mutilated pinion 5.
  • This pinion is divided into four sections of which every alternate section is provided with teeth. It thus has two sections with five teeth each and two sections without teeth, the spacer in such sections equaling the angle occupied by two teeth.
  • the teeth on the mutilated gear mesh with the teeth of the mutilated pinion 5 it will rotate the pinion only a fraction of the rotation given to the pinion 6, which pinion is not mutilated and whenever the mutilated gear 7 meshes with the pinion 6 it will give it a turn in one direction equal to the ratio of the number of teeth on the gear to the number of teeth of the pinion 6.
  • WVhen the'gear meshes with the teeth on the pinion 5 it will give the spindle but a fraction of a turn which in ratio is equal to the number of teeth on one segment of the pinion 5 to that of the number of teeth in the pinion 6.
  • I provide the bevel gear 7 with twelve teeth and the bevel pinion 6 with fourteen teeth and the bevel pinion 5 with but five teeth in each segment, the intermediate blank spaces each occupying an angle equal to the angle or space occupied by two teeth when the gear 7 is rotated.
  • the spindle 2 will first be turned 12 teeth in one direction when the teeth on the gear 7 mesh with the teeth of the pinion 6, after which the spindle will stop turning, and when the gear 7 meshes with the pinion 5 the spindle will be turned five teeth in the reverse direction, after which it will be again advanced 12 teeth and turned back five teeth, this cycle repeating itself for each rotation of the gear 7, the spindle being moved 17 teeth and making a net advance of 7 teeth or one-half turn for each cycle.
  • the ratio at which the spindle is to turn first in one direction and then in the other may be varied by providing each of the pinions and the gear With a number of teeth, Which form a ratio to one another equal to the angular turn desired for each pinion 0n the complete revolution of the crank 9.
  • a grinding tool for Valves the combinationflof a frame, aspindle mounted to rotate in said frame, a mutilated bevel gear mountedto rotate on one side of said frame, a mutilated pinion having alternate segmentsof teeth'and blank spaces mounted on said spindle on one side of said mutilated gear, and ,a second bevel pinion mounted on said spindle on the other side of said bevel gear.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Description

C W HEBERGER DRIVING MECHANISM FOR GRINDING TOOLS.
APPLICATION FILED APR- 3. I919.
Patented Sept. 28, 1920.
(Conny UNITED STATES CHARLES W. IIEBERGER, OF ROCHESTER, NEW YORK.
DRIVING MECHANISM FOR GRINDING-TOOLS.
Specification of Letters Patent.
Patented Sept. 28, 1920.
Application filed April 3, 1918. Serial No. 287.271.
To whom it may concern.
Be t known that I, CHARLES IV. HnnnRenR, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Driving Mechanism for GrindingTools, of which the following is a specification.
The object of this invention is to provide anew and improved form of grinding tool for reseating valves. 2
This and other objects of this invention will be fully illustrated in the drawing, described in the specification and pointed out in the claim at the end thereof.
In the accompanying drawing, Figure 1 is a side elevation of the grinding tool.
Fig. 2 is an end elevation of the grinding tool.
Fig. 3 is a plan view of one of the bevel pinions which intermittently rotate the spindle of the grinding tool.
In the several figures of-the drawing, like reference numerals indicatelike parts.
The grinding tool shown in the drawing operates to oscillate a valve in opposite directions on its seat and progressively advances the valve periodically in one direction. This movement given to the valve by the grinding tool insures an even grinding and accurate seating of the valve.
As shown in the drawing, the grinding tool comprises a frame 1 having a spindle 2 mounted to rotate therein longitudinally thereof. Two openings 3 and 4 are provided in the-frame 1 in which the bevel pinions 5 and 6, respectively, rotate, being mounted on the spindle 2 and rotating therewith. Centrally mounted to rotate between the bevel pinions '5 and 6 is the mutilated bevel gear 7, the teeth of which are adapted to mesh with the teeth on the pinions 5 and 6. The bevel gear 7 is mounted to rotate on the stud 8 provided in the frame 1. A crank 9 having a handle 10 is fastened to the back of the bevel gear 7, through which crank the gear is rotated. The frame 1 has a stationary handle 11 provided at the top by means of which the tool is held in an upright position and through which a slight downward pressure may be exerted on the valve by the operator while the valve is oscillated by the spindle 2 on the rotation of the crank 9.
The bevel gear 7 is mutilated and only a segment thereof is provided with teeth. The
of the spindle 2.
length of this segment is such that when the teeth on one end of the segment engage the teeth of one of the pinions 5 or 6 the teeth on the other end of the segment disengage from the teeth of the other pinion. In this way the mutilated gear 7 will mesh with but one of the pinions 5 or 6 at a time and when it meshes with the pinion 6 it will rotate the spindle 2 in one direction, while when it meshes with the pinion 5 it will rotate the spindle in the reverse direction. This gives the spindle an oscillatory motion which is transmitted to the valve to be ground thereby through the bit 12 provided on the lower end In order to give the valve a progressive motion the spindle 2 must be given a greater angular turn in one direction than in the reverse direction. This is accomplished by the mutilated pinion 5. This pinion is divided into four sections of which every alternate section is provided with teeth. It thus has two sections with five teeth each and two sections without teeth, the spacer in such sections equaling the angle occupied by two teeth. When the teeth on the mutilated gear mesh with the teeth of the mutilated pinion 5 it will rotate the pinion only a fraction of the rotation given to the pinion 6, which pinion is not mutilated and whenever the mutilated gear 7 meshes with the pinion 6 it will give it a turn in one direction equal to the ratio of the number of teeth on the gear to the number of teeth of the pinion 6. WVhen the'gear meshes with the teeth on the pinion 5 it will give the spindle but a fraction of a turn which in ratio is equal to the number of teeth on one segment of the pinion 5 to that of the number of teeth in the pinion 6.
In practice, I provide the bevel gear 7 with twelve teeth and the bevel pinion 6 with fourteen teeth and the bevel pinion 5 with but five teeth in each segment, the intermediate blank spaces each occupying an angle equal to the angle or space occupied by two teeth when the gear 7 is rotated. The spindle 2 will first be turned 12 teeth in one direction when the teeth on the gear 7 mesh with the teeth of the pinion 6, after which the spindle will stop turning, and when the gear 7 meshes with the pinion 5 the spindle will be turned five teeth in the reverse direction, after which it will be again advanced 12 teeth and turned back five teeth, this cycle repeating itself for each rotation of the gear 7, the spindle being moved 17 teeth and making a net advance of 7 teeth or one-half turn for each cycle. v V V In this way the movable valve seat of the valve is oscillated on the stationary valve seat so that at each complete turn of the mutiliated gear the valve is given a turn of a greater angle in one direction and a correspondingly smaller turn' in the opposite direction. i
The ratio at which the spindle is to turn first in one direction and then in the other, of course, may be varied by providing each of the pinions and the gear With a number of teeth, Which form a ratio to one another equal to the angular turn desired for each pinion 0n the complete revolution of the crank 9. I
I Claim: r 1
In a grinding tool for Valves, the combinationflof a frame, aspindle mounted to rotate in said frame, a mutilated bevel gear mountedto rotate on one side of said frame, a mutilated pinion having alternate segmentsof teeth'and blank spaces mounted on said spindle on one side of said mutilated gear, and ,a second bevel pinion mounted on said spindle on the other side of said bevel gear.
I In testimony whereof I aflix my signature. 30
CHARLES"W.'HEBERGER.
US287271A 1919-04-03 1919-04-03 Driving mechanism for grinding-tools Expired - Lifetime US1353902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US287271A US1353902A (en) 1919-04-03 1919-04-03 Driving mechanism for grinding-tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US287271A US1353902A (en) 1919-04-03 1919-04-03 Driving mechanism for grinding-tools

Publications (1)

Publication Number Publication Date
US1353902A true US1353902A (en) 1920-09-28

Family

ID=23102176

Family Applications (1)

Application Number Title Priority Date Filing Date
US287271A Expired - Lifetime US1353902A (en) 1919-04-03 1919-04-03 Driving mechanism for grinding-tools

Country Status (1)

Country Link
US (1) US1353902A (en)

Similar Documents

Publication Publication Date Title
US1353902A (en) Driving mechanism for grinding-tools
US1231258A (en) Drill-sharpener.
US1540699A (en) Reaming machine
US1316317A (en) Milling-machine fixture
US1433684A (en) Valve grinder
US1450003A (en) Combined drill and valve grinder
US1175123A (en) Gearing for valve-grinders.
US1454430A (en) Process for cutting gear wheels
US1244659A (en) Bevel-gear generator.
DE412906C (en) Revolving gear drive for the drive of conveyor troughs, push sieves and the like. like
DE1117355B (en) Polygonal lathe
US2038897A (en) Gear cutter for the cutting of curved teeth gears
US1208023A (en) Valve-grinding tool.
US1199308A (en) Alternating rotary gearing.
US1138775A (en) Escapement.
DE454511C (en) Gear for large transmission to slow
US1341953A (en) walter
US16155A (en) Albin warth
US1007127A (en) Machine for cutting polygonal holes.
US1343396A (en) Sylvania
US1731421A (en) Tool mechanism for gear-cutting machines
US1518579A (en) Valve-grinding tool
US100592A (en) Improvement in redttcing-g-ear for steam-engine indicators
GB112431A (en) Improvements in Valve Grinding Machines.
US1158811A (en) Stone-cutting tool.