US914459A - Process for uniformly covering with lead hollow bodies. - Google Patents

Process for uniformly covering with lead hollow bodies. Download PDF

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Publication number
US914459A
US914459A US40636207A US1907406362A US914459A US 914459 A US914459 A US 914459A US 40636207 A US40636207 A US 40636207A US 1907406362 A US1907406362 A US 1907406362A US 914459 A US914459 A US 914459A
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Prior art keywords
lead
hollow body
hollow bodies
uniformly covering
pipe
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Expired - Lifetime
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US40636207A
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Vitus Schwaninger
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Individual
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/06Melting-down metal, e.g. metal particles, in the mould
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00Coating apparatus
    • Y10S118/10Pipe and tube inside

Definitions

  • he rocess consists in first providing the interna. surface of the hollow body, the interior of which is to be covered with lead, with a coating metal, such as tin, zinc and the like in the well-known manner, in then introducing a leaden pipe into the hollow body in rotating thelatter with the lead pipe and heating themwhile they are being rotated until the lead begins to melt and is pressed against the interior surface of the hollow body by the centrifugal-force.
  • the hollow body 1 for this purpose maybe mounted with one end on the chucklate 2 of the lathe.
  • the other end of the ollow body is inserted in a bearin 10, so that when the chuckplate is rotated t 1e hollow body can rotate with the same in the bearing 10;
  • a gas-pipe 6 is fixed on the frame of the lathe by means of pipe hangers 8 or in other suitable manner and is provided with perforations 7 for the emission of the gas.
  • the gas pipe is com nected with a gas supply 1pc 9.
  • the chuck-plate together with the hollow body beigns to rotate gas is admitted to the pipe 6, and the gas passing through the erforations of the gasi e is lighted.
  • he hollow body is heater y the gas burners until the lead-pipe inside the hollow body begins to melt and is ressed against the interior surface of the ollow body in conseuence of the centrifugal force.
  • a material advantage of the new process resides in the liquid lead being pressed outward against the interior surface of the hollow body not by means of internal excess pressure, as inthe case of some of the methods hitherto employed, but by means of centrifugal-force due to'its great specific weight; consequently the impurities present in thelead, as well as other parts of less specific weight, lie on or near the interior surface, so that the lead exhibits roughness on its interior surface, which roughness can be moved by turning, boring and the like.
  • the lead coat ng then remaining in the hollow body is perfectly free from im urities and is conse uently capable of resisting the action of aci s, acid containingvapors etc, to a far greater extent than a coating of lead mixed with impurities.
  • the fore oing specification si ned at Mannheim, ermany this twentyfth day of November, 1907.

Description

v. SGHWANINGEE PROCESS FOR UNIFORMLY COVERING WITH LEAD HOLLOW BODIES.
APPLIOATION FILED 13150.13, 1907. v
Q 1 4 459 a Patented Mar. 9, 1909.
VI'TUS SGHWANINGER, OF OGGER SIIEIM, NEAR MANNHEIM, GERMANY.
PROCESS FOR UNIFORMLY COVERING WITH LEAD HOLLOW BODIES.
Specification of Letters Patent.
Patented March 9, 1909.
Applicator: filed December 13, 1907. Serial No. 406,862.
vpi es, vessels, boilers and the like.
he rocess consists in first providing the interna. surface of the hollow body, the interior of which is to be covered with lead, with a coating metal, such as tin, zinc and the like in the well-known manner, in then introducing a leaden pipe into the hollow body in rotating thelatter with the lead pipe and heating themwhile they are being rotated until the lead begins to melt and is pressed against the interior surface of the hollow body by the centrifugal-force.
In order that the invention may be clearly understood, reference is made to the accompanying drawing, in which one form of the apparatus for carrying the same into effect is represented by way of example in vertical section.
As canbe seen from the accompanying drawing the hollow body 1 for this purpose maybe mounted with one end on the chucklate 2 of the lathe. The other end of the ollow body is inserted in a bearin 10, so that when the chuckplate is rotated t 1e hollow body can rotate with the same in the bearing 10;
3 is th lead pi e, which is introduced into the hollow body efore the chuck late 2 be+ gins to rotate together with the ho] .ow body 1'.
Underneath the hollow body a gas-pipe 6 is fixed on the frame of the lathe by means of pipe hangers 8 or in other suitable manner and is provided with perforations 7 for the emission of the gas. The gas pipe is com nected with a gas supply 1pc 9. As soon as the chuck-plate together with the hollow body beigns to rotate gas is admitted to the pipe 6, and the gas passing through the erforations of the gasi e is lighted. he hollow body is heater y the gas burners until the lead-pipe inside the hollow body begins to melt and is ressed against the interior surface of the ollow body in conseuence of the centrifugal force. t at the li uid metal may not flow out of the hollow b0 y the latter is provided at both ends with flanges 4, 5 projecting inward. A material advantage of the new process resides in the liquid lead being pressed outward against the interior surface of the hollow body not by means of internal excess pressure, as inthe case of some of the methods hitherto employed, but by means of centrifugal-force due to'its great specific weight; consequently the impurities present in thelead, as well as other parts of less specific weight, lie on or near the interior surface, so that the lead exhibits roughness on its interior surface, which roughness can be moved by turning, boring and the like. The lead coat ng then remaining in the hollow body is perfectly free from im urities and is conse uently capable of resisting the action of aci s, acid containingvapors etc, to a far greater extent than a coating of lead mixed with impurities.
I claim A process for homogeneously internally coating with lead hollow bodies provided on their interior surfaces with a preliminary coating of metal consisting in rotating a leaden pipe, introduced into the hollow body, with the latter, and in heating the hollow body while it is being rotated until the lead beglnsto melt and is pressed against the interior surface of the hollow body by the centrifugal-force' In order The fore oing specification si ned at Mannheim, ermany this twentyfth day of November, 1907.
virus SGHWANINGER;
In presence of two witnesses: TERESA CATHERANI, Jos. H. Laura.
US40636207A 1907-12-13 1907-12-13 Process for uniformly covering with lead hollow bodies. Expired - Lifetime US914459A (en)

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US40636207A US914459A (en) 1907-12-13 1907-12-13 Process for uniformly covering with lead hollow bodies.

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US40636207A US914459A (en) 1907-12-13 1907-12-13 Process for uniformly covering with lead hollow bodies.

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670509A (en) * 1950-08-24 1954-03-02 Benjamin H Hadley Apparatus for lining bearings
US2670511A (en) * 1953-04-20 1954-03-02 Benjamin H Hadley Method of lining bearings
US2908384A (en) * 1954-03-03 1959-10-13 Babcock & Wilcox Co Method of applying a particulate lubricant to a tubular extrusion billet
US3703348A (en) * 1970-10-27 1972-11-21 Rototron Corp Apparatus for molding hollow objects from thermoplastic materials
US4008843A (en) * 1974-04-29 1977-02-22 Asahi Glass Co., Ltd. Apparatus for sealing tubes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670509A (en) * 1950-08-24 1954-03-02 Benjamin H Hadley Apparatus for lining bearings
US2670511A (en) * 1953-04-20 1954-03-02 Benjamin H Hadley Method of lining bearings
US2908384A (en) * 1954-03-03 1959-10-13 Babcock & Wilcox Co Method of applying a particulate lubricant to a tubular extrusion billet
US3703348A (en) * 1970-10-27 1972-11-21 Rototron Corp Apparatus for molding hollow objects from thermoplastic materials
US4008843A (en) * 1974-04-29 1977-02-22 Asahi Glass Co., Ltd. Apparatus for sealing tubes

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