US1757016A - Piston - Google Patents

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Publication number
US1757016A
US1757016A US305150A US30515028A US1757016A US 1757016 A US1757016 A US 1757016A US 305150 A US305150 A US 305150A US 30515028 A US30515028 A US 30515028A US 1757016 A US1757016 A US 1757016A
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US
United States
Prior art keywords
piston
rim
metal
cylinder
folds
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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US305150A
Inventor
Jesse D Langdon
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
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to US305150A priority Critical patent/US1757016A/en
Application granted granted Critical
Publication of US1757016A publication Critical patent/US1757016A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/001—One-piece pistons
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49249—Piston making

Definitions

  • the invention relates to im pistons, particularly for use in pumps and kindred devices, althoughthe piston may be used in amo-dified form in som'eftypes of engines.
  • My invention has for its primary object the provision of a novel compressible sheet metal piston member, adapted to expand from pressure and bear against the Wall of the Cylinder in which said piston is used.
  • Another object in my invention is to proyide a metal piston adapted to prevent the lay-passing of pressure between the cylinder Welland-piston Without the use of piston rings or kindred devices.
  • Fig, 2 isa diametrical section thereof
  • Fig. 3 is a greatly enlarged and exaggerated edge View of the rim of the piston, show-f ing the approximate line along which the metal is removed.
  • the piston is of cup-shape, being pressed from suitable metal and having a flared rim.
  • Thelcompression of the metal of the rim prouces minute or microscopic folds, as suggested in Fig. 8, and the outer surface of the rim is machined oil on the line 11, as'indicated in Fig. 3, so as to remove the outer folds.
  • the machined surface 2 is substantially cylindrical to it the Wall of'thecylinder, and the rim has a feather edge 3 that bears snugly against the cylinder wall.
  • the metal' is pulled across thesplit portions by the drag 'oflthe machining tool, so that the severed edges of the folds of m-etalare actually interlapped; This not only seals the edge of the piston against leakage. but assists the expansion and provements' in ption proceeds, and the piston is y the drawings, in which,
  • the piston In use the piston is compressed into acylinameter, than the piston memher and the folds of the metal at the edge of the rim allow the metalto close together and interlap, as the case may be.

Description

y 30- J. D. LANGDON 1,757,016
PISTON Filed Sept. 11 1928 F1E-l- FHlE.
CJI
. d er of smaller di Patented May 8, 193$ rrnn sa'rr JESSE D. tnnsnom on LOS ANenLEs, CALIFORNIA,
PIST
Application filed September 11, 1928. seriaiNo. 305,150.
The invention relates to im pistons, particularly for use in pumps and kindred devices, althoughthe piston may be used in amo-dified form in som'eftypes of engines. a
My invention has for its primary object the provision of a novel compressible sheet metal piston member, adapted to expand from pressure and bear against the Wall of the Cylinder in which said piston is used.
Another object in my invention. is to proyide a metal piston adapted to prevent the lay-passing of pressure between the cylinder Welland-piston Without the use of piston rings or kindred devices.
Other as the descri illustrate-d b Fig. 1 is a piston. I 1
Fig, 2 isa diametrical section thereof Fig. 3 is a greatly enlarged and exaggerated edge View of the rim of the piston, show-f ing the approximate line along which the metal is removed. g i
The piston is of cup-shape, being pressed from suitable metal and having a flared rim. Thelcompression of the metal of the rim prouces minute or microscopic folds, as suggested in Fig. 8, and the outer surface of the rim is machined oil on the line 11, as'indicated in Fig. 3, so as to remove the outer folds. The machined surface 2 is substantially cylindrical to it the Wall of'thecylinder, and the rim has a feather edge 3 that bears snugly against the cylinder wall. The metal'is pulled across thesplit portions by the drag 'oflthe machining tool, so that the severed edges of the folds of m-etalare actually interlapped; This not only seals the edge of the piston against leakage. but assists the expansion and provements' in ption proceeds, and the piston is y the drawings, in which,
objects inmy invention Will appear if gether with the sprin tend to hold the rim o surrounding cylinder take up We the piston.
Having thus g tension of the metal, f the piston against the Wall at all times and ar between the-cylinder all and is claimedas-new is:
A i'ng across and lengthw splits with the t'erlap When th cylinder.
perspective vieyv of the improved contraction to take place more freely at the feather edge 3 ca rim. a
In use the piston is compressed into acylinameter, than the piston memher and the folds of the metal at the edge of the rim allow the metalto close together and interlap, as the case may be. The exerting of pressure on the inside of the piston rim, to-
used by the machining of the piston comprising a sheetmetal c a rim wherein the metal is folded pression and sald run be up having mach ise said folds to produce split portions adapted to in e piston is compressed into a JESSE D. transport-.-
ined 01f scribed the invention, what by com-
US305150A 1928-09-11 1928-09-11 Piston Expired - Lifetime US1757016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US305150A US1757016A (en) 1928-09-11 1928-09-11 Piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US305150A US1757016A (en) 1928-09-11 1928-09-11 Piston

Publications (1)

Publication Number Publication Date
US1757016A true US1757016A (en) 1930-05-06

Family

ID=23179545

Family Applications (1)

Application Number Title Priority Date Filing Date
US305150A Expired - Lifetime US1757016A (en) 1928-09-11 1928-09-11 Piston

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US (1) US1757016A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654646A (en) * 1950-02-02 1953-10-06 Gustave Lidseen Inc Piston
US2822227A (en) * 1955-09-26 1958-02-04 John M Droitcour Seal
US2866674A (en) * 1956-01-12 1958-12-30 North American Aviation Inc Double acting piston seal
US3574351A (en) * 1969-10-30 1971-04-13 Gen Motors Corp Reciprocating seal assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654646A (en) * 1950-02-02 1953-10-06 Gustave Lidseen Inc Piston
US2822227A (en) * 1955-09-26 1958-02-04 John M Droitcour Seal
US2866674A (en) * 1956-01-12 1958-12-30 North American Aviation Inc Double acting piston seal
US3574351A (en) * 1969-10-30 1971-04-13 Gen Motors Corp Reciprocating seal assembly

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