US147586A - Improvement in machines for refitting valve-seats - Google Patents

Improvement in machines for refitting valve-seats Download PDF

Info

Publication number
US147586A
US147586A US147586DA US147586A US 147586 A US147586 A US 147586A US 147586D A US147586D A US 147586DA US 147586 A US147586 A US 147586A
Authority
US
United States
Prior art keywords
valve
seats
machines
head
improvement
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
Publication date
Application granted granted Critical
Publication of US147586A publication Critical patent/US147586A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/02—Milling surfaces of revolution
    • B23C3/05—Finishing valves or valve seats
    • 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
    • Y10T408/16—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor
    • Y10T408/17—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor to control infeed
    • Y10T408/172—Responsive to Tool
    • 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
    • Y10T408/55—Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/557—Frictionally engaging sides of opening in work
    • Y10T408/558—Opening coaxial with Tool
    • Y10T408/5587—Valve fitting

Definitions

  • the object of my invention is to enable the seats of globe-valves to be dressed or restored to their'original shape without removing the casings of said valves from position; and it consists, principally, in the combination of the swiveled many-sized head or mandrel-bearing with the yoke or frame for containing ⁇ the feedscrew, substantially as and for the purpose hereinafter speciiied. It consists, further, in the combination of the mandrel head, frame, or yoke, feed-screw, and mandrel, substantially as and for the purpose hereinafter shown. It consists, finally, in the apparatus as a Whole, its several parts being constructed and combined to operate in the manner and for the purpose substantially as hereinafter set forth.
  • A represents the frame of my machine, consisting of ⁇ two parallel bars, connected together at one end, and provided in and through said end with a threaded opening, a, which receives a corre spondingly-threaded feed-serew, B.
  • a cylindrical head, C Within the opposite open end of the frame A is placedv a cylindrical head, C, which, by means of two trunnions, o and c, is pivoted within corresponding openings, a', formed in said frame, and is capable of being turned so as ,to bring either end below or outside-of said frame.
  • the machine is now ready for use as follows: The mandrel is placed in position within its head, with its cutter end outward and its squared end, containing the ratchet-lever, against the pointed end of the reed-screw, after which said head is inserted within the opening of a valve-casing, and screwed to place.
  • the feed-screw not only moves the mandrel and cutter inward, but also holds the latter rmly against ⁇ the seat being operated upon, and prevents chattering or other faulty operation, in consequence of which said seat receives the required surface, instead, as would otherwise be the case, ot' being uneven and incapable of forming a close joint with the valve.
  • the machine can be operated in positions where it would be inipracticable to employ the usual brace.

Description

' UNITED STATES wn 'rnrrr @rica IVILLIAM IV. ALLMAND, OF EAST BOSTON, MASSACHUSETTS.
IMPROVEMENT IN MACHINES FQR REFIT'TING VALVE-SEATS.
Specification formngpart of Letters Patent No. ls, dated February 17, 1874; application tiled January 30, 1874.
To all whomJ t may concern Beit known that I,W1LL1AM W. ALLMAND, of East Boston, in the county ot' Suffolk and i.1 the State of Massachusetts, have invented certain new and useful Improvements in Machines for Retting Valve Seats; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l is a perspective view of my appaatus as arranged for use, andFig. 2 is a central longitudinal section of the same in position within and upon -the body or easing of a valve.
Letters of like name or kind refer to like parts in each of the figures.
The object of my invention is to enable the seats of globe-valves to be dressed or restored to their'original shape without removing the casings of said valves from position; and it consists, principally, in the combination of the swiveled many-sized head or mandrel-bearing with the yoke or frame for containing` the feedscrew, substantially as and for the purpose hereinafter speciiied. It consists, further, in the combination of the mandrel head, frame, or yoke, feed-screw, and mandrel, substantially as and for the purpose hereinafter shown. It consists, finally, in the apparatus as a Whole, its several parts being constructed and combined to operate in the manner and for the purpose substantially as hereinafter set forth. In the annexed drawing, A represents the frame of my machine, consisting of `two parallel bars, connected together at one end, and provided in and through said end with a threaded opening, a, which receives a corre spondingly-threaded feed-serew, B. Within the opposite open end of the frame A is placedv a cylindrical head, C, which, by means of two trunnions, o and c, is pivoted within corresponding openings, a', formed in said frame, and is capable of being turned so as ,to bring either end below or outside-of said frame. Upon the periphery of the pivoted head C, upon each side of its longitudinal center, are
formed a series of steps, c', each of which is threaded cxteriorly, and corresponds in diameter to one of the sizes of the openings in the cases of globe-valves, through which the valves are inserted, the number of said threaded steps being such as to enable said head to be inserted within and caused to fill any such opening within a valve-easing of 'usual size and construction. A circular opening, c,- passing through thelongitudinal axis of the head C, receives a mandrel, D, upon one end of which is secured a cutter, E, that corresponds in size and shape to the `like features of the valve-seat to be dressed, whileat its opposite end said mandrel is squared, so as to receive the toothed disk f of a ratchet-lever, F.
The machine is now ready for use as follows: The mandrel is placed in position within its head, with its cutter end outward and its squared end, containing the ratchet-lever, against the pointed end of the reed-screw, after which said head is inserted within the opening of a valve-casing, and screwed to place. The feed-screw is now turned inward until the cutter is brought into contact with the valve-seat, ,and said cutter then caused to revolve by means of the ratche=t-lever, the
contact between said cutter and seat being rendered suiiiciently close to cause the surface of the latter to be cut away. as much as p may be required in order to render it true.
It will be seen that the feed-screw not only moves the mandrel and cutter inward, but also holds the latter rmly against `the seat being operated upon, and prevents chattering or other faulty operation, in consequence of which said seat receives the required surface, instead, as would otherwise be the case, ot' being uneven and incapable of forming a close joint with the valve.
By use of the ratchet-lever, the machine can be operated in positions where it would be inipracticable to employ the usual brace.
Having thus fully set forth the nature and merits of my invention, what I elaim'as new 1sh l. In combination with the frame A, the swiveled or pivoted head C, provided with the threaded steps c c and central opening c", substantially as and for the purpose speci- 2. The frame A, feed-screw B, head C, c, c, and c, and the mandrel D, constructed and combined to operate substantially as and for the purpose shown.
3. The frame A, feed-screw B, head C, c, c', and c, mandrel D, cutter E, and ratchet-lever F, said parts being constructed as shown, and combined to operate in the manner and for the purpose Substantially as set forth.
In testimony that I claim the. foregoing I have hereunto serJ my hand this 31st day of December, 1873.
VILLIAM YV. ALLMAND.
IVitnesses: V
W. J. MOORE, WILLIAM MILLER.
US147586D Improvement in machines for refitting valve-seats Expired - Lifetime US147586A (en)

Publications (1)

Publication Number Publication Date
US147586A true US147586A (en) 1874-02-17

Family

ID=2217000

Family Applications (1)

Application Number Title Priority Date Filing Date
US147586D Expired - Lifetime US147586A (en) Improvement in machines for refitting valve-seats

Country Status (1)

Country Link
US (1) US147586A (en)

Similar Documents

Publication Publication Date Title
US147586A (en) Improvement in machines for refitting valve-seats
US1960999A (en) Reversing valve and valve seat assembly
US378196A (en) Daniel f
US994955A (en) Valve.
US1014775A (en) Disk valve.
US831742A (en) Valve.
US685697A (en) Gate-valve-reseating machine.
US923413A (en) Valve.
US742313A (en) Device for dressing valve-seats.
US658975A (en) Valve.
US959515A (en) Chuck.
US119057A (en) Improvement in stop-valves
US280176A (en) Gage-cock
US972431A (en) Valve or faucet.
US49203A (en) Improved machine for refitting stop-valves
US1113674A (en) Valve-reseater.
US122243A (en) Improvement in boring-bars for facing fhe ends of cylinders
US1567336A (en) Valve-reseating tool
US365053A (en) Device for reducing the ends of tubes
US1025242A (en) Gate for jigs.
US1084185A (en) Valve structure.
US403529A (en) Island
US435904A (en) sampson
US600830A (en) Office
US284746A (en) Device for tapping gas and water mains