US2099207A - Valve grinder - Google Patents
Valve grinder Download PDFInfo
- Publication number
- US2099207A US2099207A US94768A US9476836A US2099207A US 2099207 A US2099207 A US 2099207A US 94768 A US94768 A US 94768A US 9476836 A US9476836 A US 9476836A US 2099207 A US2099207 A US 2099207A
- Authority
- US
- United States
- Prior art keywords
- head
- grinding element
- grinding
- tapered
- 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
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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
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/08—Honing tools
- B24B33/088—Honing tools for holes having a shape other than cylindrical
Definitions
- This invention relates to a valve grinder, it more particularly relating to a grinder which is especially adapted for grinding seats of valves of varying sizes in the flush tanks of toilets.
- the object of the invention is to provide a grinder of the character described which Will be simple in construction, economical in manufacture and effective in operation.
- Fig. 1 is a top plan View of a grinder embodying the improvements.
- Fig. 2 is a side elevation of the same.
- Fig. 3 is a section on the line 3-3 of Fig. 1.
- Fig. 4 is a perspective view of one of the grinding elements.
- Fig. 5 is an elevation on a reduced scale of the crank which operates the grinder.
- I represents a circular head, the sides of which are tapered downwardly and inwardly as shown.
- This head has a plurality of radially extending pockets 2, four being shown in the present case spaced equally apart.
- Each of these pockets is formed with a straight bottom and top and straight sides, the inner end being closed and the outer end open.
- each of these pockets Located in each of these pockets is a grinding element 3, the bottom, top and sides of which are formed straight to conform with the straight bottom, top and side walls of the pocket, the inner end of this grinding element being also formed straight.
- the forward end of the element is tapered so as to conform to the tapered shape of the valve seat which it is designed to grind and also conform to the tapered shape of the head.
- These grinding elements are formed of emery, carborundum or similar material.
- Each of the grinding elements has secured to the upper side thereof a pin 4 which extends into a radially extending slot 5 in the head I which communicates with the pocket.
- a conical spring 6 which exerts a pressure radially upon the grinding element, the pin 4 serving to limit the outward movement of the grinding element.
- the grinding elements will yield against the tension of the springs so as to adjust themselves to the size of the valve seat to be ground so that the tool is adapted todifferent sized seats.
- the springs also tend to hold the grinding elements in yielding engagement with the valve seat while being ground.
- a tapered head having 5 a series of radially extended pockets open at their outer ends, a grinding element located in each pocket, the outer end of said grinding element being tapered to conform to the tapered shape of said head, a coil spring located between the rear end of each grinding element and the inner end of the pocket in which it is located, and means for limiting the outward throw of each grinding element.
- a tapered head having a series of radially extended pockets open at their outer ends, said head having elongated slots communicating with said pockets, a grinding element located in each pocket, the outer end of said grinding element being tapered to conform to the tapered shape of said head, a spring located between the rear end of each grinding element and the inner end of the pocket in which it is located, and a pin carried by each grinding element extending into an elongated slot in the head.
- a tapered head having a series of radially extending pockets open at their outer ends, a grinding element located in each pocket, the outer end of said grinding element being tapered to conform to the tapered shape of said head, a spring located between the rear endof each grinding element and the inner end of the pocket in which it is located, said spring being a coil tapered spring with the small end thereof positioned adjacent the inner end of the pocket and the large end thereof adjacent the rear end of the grinding element, and means for limiting the outward movement of each grinding o element.
- crank I which, as shown in Fig. 5, has one HARRY S. HILL. CHARLES H. WILLIAMS.
Description
Nov. 16, 1937. 5, ET AL I 2,099,207
VALVE GRINDER Filed Aug. 7, 1936 Z ATTORNEYS Patented Nov. 16, 1937 VALVE GRINDER Harry S. Hill and Charles H. Williams, Springfield, Ohio Application August 7, 1936, Serial No. 94,768
4 Claims.
This invention relates to a valve grinder, it more particularly relating to a grinder which is especially adapted for grinding seats of valves of varying sizes in the flush tanks of toilets.
The object of the invention is to provide a grinder of the character described which Will be simple in construction, economical in manufacture and effective in operation.
In the accompanying drawing:
Fig. 1 is a top plan View of a grinder embodying the improvements.
Fig. 2 is a side elevation of the same.
Fig. 3 is a section on the line 3-3 of Fig. 1.
Fig. 4 is a perspective view of one of the grinding elements.
Fig. 5 is an elevation on a reduced scale of the crank which operates the grinder.
Referring to the drawing, I represents a circular head, the sides of which are tapered downwardly and inwardly as shown. This head has a plurality of radially extending pockets 2, four being shown in the present case spaced equally apart. Each of these pockets is formed with a straight bottom and top and straight sides, the inner end being closed and the outer end open.
Located in each of these pockets is a grinding element 3, the bottom, top and sides of which are formed straight to conform with the straight bottom, top and side walls of the pocket, the inner end of this grinding element being also formed straight. The forward end of the element, however, is tapered so as to conform to the tapered shape of the valve seat which it is designed to grind and also conform to the tapered shape of the head. These grinding elements are formed of emery, carborundum or similar material.
Each of the grinding elements has secured to the upper side thereof a pin 4 which extends into a radially extending slot 5 in the head I which communicates with the pocket.
Interposed between the inner end of each grinding element and the rear wall of the pocket which it occupies is a conical spring 6 which exerts a pressure radially upon the grinding element, the pin 4 serving to limit the outward movement of the grinding element.
In operation the grinding elements will yield against the tension of the springs so as to adjust themselves to the size of the valve seat to be ground so that the tool is adapted todifferent sized seats. The springs also tend to hold the grinding elements in yielding engagement with the valve seat while being ground.
end thereof adapted to be inserted in asquare opening 8 centrally positioned in the head I,
whereby the tool may be rotated.
Having thus described our invention, we claim: 1. In a valve grinder, a tapered head having 5 a series of radially extended pockets open at their outer ends, a grinding element located in each pocket, the outer end of said grinding element being tapered to conform to the tapered shape of said head, a coil spring located between the rear end of each grinding element and the inner end of the pocket in which it is located, and means for limiting the outward throw of each grinding element.
2. In a valve grinder, a tapered head having a series of radially extended pockets open at their outer ends, said head having elongated slots communicating with said pockets, a grinding element located in each pocket, the outer end of said grinding element being tapered to conform to the tapered shape of said head, a spring located between the rear end of each grinding element and the inner end of the pocket in which it is located, and a pin carried by each grinding element extending into an elongated slot in the head.
ating crank.
4. In a valve grinder, a tapered head having a series of radially extending pockets open at their outer ends, a grinding element located in each pocket, the outer end of said grinding element being tapered to conform to the tapered shape of said head, a spring located between the rear endof each grinding element and the inner end of the pocket in which it is located, said spring being a coil tapered spring with the small end thereof positioned adjacent the inner end of the pocket and the large end thereof adjacent the rear end of the grinding element, and means for limiting the outward movement of each grinding o element.
A crank I which, as shown in Fig. 5, has one HARRY S. HILL. CHARLES H. WILLIAMS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US94768A US2099207A (en) | 1936-08-07 | 1936-08-07 | Valve grinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US94768A US2099207A (en) | 1936-08-07 | 1936-08-07 | Valve grinder |
Publications (1)
Publication Number | Publication Date |
---|---|
US2099207A true US2099207A (en) | 1937-11-16 |
Family
ID=22247049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US94768A Expired - Lifetime US2099207A (en) | 1936-08-07 | 1936-08-07 | Valve grinder |
Country Status (1)
Country | Link |
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US (1) | US2099207A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE894664C (en) * | 1939-01-08 | 1953-10-26 | Otto Klein | Rotating grinding tool |
US2733556A (en) * | 1956-02-07 | Whitesell | ||
US2751727A (en) * | 1953-08-28 | 1956-06-26 | Leavitt Machine Co | Grinding head and grinding surface therefor |
US3021650A (en) * | 1959-10-19 | 1962-02-20 | Jay Bain | Seat grinding tool |
US3067300A (en) * | 1959-03-06 | 1962-12-04 | Eastern Power Devices Ltd | Auxiliary jaw with adjustable beaver tail blade |
US4179850A (en) * | 1978-04-19 | 1979-12-25 | Brammall, Inc. | Reaction honing tool for honing a flat surface |
US6021771A (en) * | 1998-09-04 | 2000-02-08 | Equipment Development Co., Inc. | Surfacing machine with "strip-sert" cutter assemblies |
USD434052S (en) * | 1999-11-15 | 2000-11-21 | Equipment Development Company, Inc. | Grinder blade assembly |
US20040152404A1 (en) * | 2001-01-25 | 2004-08-05 | Motohiro Senjo | Lapping tool |
US20120094583A1 (en) * | 2009-07-01 | 2012-04-19 | Honda Motor Co., Ltd. | Grind-stone-mount of honing head |
-
1936
- 1936-08-07 US US94768A patent/US2099207A/en not_active Expired - Lifetime
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2733556A (en) * | 1956-02-07 | Whitesell | ||
DE894664C (en) * | 1939-01-08 | 1953-10-26 | Otto Klein | Rotating grinding tool |
US2751727A (en) * | 1953-08-28 | 1956-06-26 | Leavitt Machine Co | Grinding head and grinding surface therefor |
US3067300A (en) * | 1959-03-06 | 1962-12-04 | Eastern Power Devices Ltd | Auxiliary jaw with adjustable beaver tail blade |
US3021650A (en) * | 1959-10-19 | 1962-02-20 | Jay Bain | Seat grinding tool |
US4179850A (en) * | 1978-04-19 | 1979-12-25 | Brammall, Inc. | Reaction honing tool for honing a flat surface |
US6021771A (en) * | 1998-09-04 | 2000-02-08 | Equipment Development Co., Inc. | Surfacing machine with "strip-sert" cutter assemblies |
USD434052S (en) * | 1999-11-15 | 2000-11-21 | Equipment Development Company, Inc. | Grinder blade assembly |
US20040152404A1 (en) * | 2001-01-25 | 2004-08-05 | Motohiro Senjo | Lapping tool |
US7008311B2 (en) * | 2001-01-25 | 2006-03-07 | Senjo Seiki Corporation | Lapping tool |
US20120094583A1 (en) * | 2009-07-01 | 2012-04-19 | Honda Motor Co., Ltd. | Grind-stone-mount of honing head |
US8764521B2 (en) * | 2009-07-01 | 2014-07-01 | Honda Motor Co., Ltd. | Grind-stone-mount of honing head |
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