close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3087722

код для вставки
April 30, 1963
A, HuE-r
3,087,714
FURNACES FOR HEAT TREATING ARTICLES
Filed May 5, 1958
INVENTOR.
ANDRE HU'ET
BY%7%
ATTORNEY
United States Patent C)
1
3,087,714
er’
1 CC
Patented Apr. 30, 1963
2
base, said units being disposed with their large bases in
3,087,714
FURNACES FOR HEAT TREATING ARTICLES
Andre Huet, 48 Ave. du President Wilson,
Paris XVI, France
Filed May 5, 1958, Ser. No. 733,036
Claims priority, application France June 6, 1957
4 Claims. (Cl. 263-2)
This invention relates to a furnace for heating or
thermally treating metal parts and it is an object of the
invention to provide a furnace which is relatively easy
and economical to construct and operate.
According to the present invention a furnace for heat
treating articles comprises two parts each having the
form of a truncated cone, pyramid or the like, the parts
face to face relationship and being symmetrically dis
posed on both sides of a plane parallel to said large bases
and passing between them, at least one of said units be
ing mounted on means adapted to permit said last-named
unit to move towards and away from the other unit to
leave a gap of varying width between said units provid
ing free radial access and adapted to receive the articles
to ‘be heat-treated, a burner disposed in each unit at
the inner end of said unit remote from its large base and
nearer its small base and positioned to direct the gases of
combustion toward said gap.
2. A furnace for the heat-treatment of metal articles,
comprising two furnace units, each having the form of a
15 hollow truncated cone having a large base and a small
being symmetrically disposed with their bases disposed
base, said units being disposed with their large bases in
inner or apex end of each truncated cone part a and b.
named unit to move towards and away from the other
face to face relationship and being symmetrically disposed
in face to face relation, one of the parts being mounted
on both sides of a plane parallel to said large bases and
for movement towards and away from the other and an
passing between them, at least one of said units being
article or articles to be heat-treated being adapted to
be positioned in a gap formed between the bases of the 20 mounted on rollers adapted to run on rails to permit said
last-named unit to move towards and away from the other
parts, a burner being located in each part and the gases
unit to leave a gap of varying width between said units
of combustion from said furnaces being adapted to escape
providing free radial access and adapted to receive the
through said gap.
articles to be heat-treated, a burner disposed in each
The invention will now be described with reference to
25 unit at the inner end of said unit remote from its large
the accompanying drawings, in which:
base and nearer its small base and positioned to direct the
FIG. 1 is a side elevation of a furnace according to one
gases of combustion toward said gap.
embodiment of the invention, and
3. A furnace for the heat-treatment of metal articles,
FIG. 2 is an end view of the movable part of the
comprising two furnace units, each having the form of a
furnace.
As shown in FIG. 1 of the accompanying drawings 30 hollow truncated cone having a large base and a small
base, said units being disposed with their large bases in
the furnace comprises two symmetrically arranged parts
face to face relationship and being symmetrically disposed
a, b the part a of which is ?xed while the other part
on both sides of a plane parallel to said large bases and
b is mounted so as to be movable toward and away from
passing ‘between them, at least one of said units being
the part a. Each part has the shape of a hollow truncated
cone, pyramid or the like, the bases being open and in 35 mounted on rollers adapted to run on rails, and having a
pinion connected with a hand wheel, said pinion being
face to face relation, the plane of symmetry of the parts
adapted to mesh with a ?xed rack to permit said last
passing through them. Burners 01, c2 are located at the
unit to leave a gap of varying width between said units
The part b is provided with two rollers d running on
rails e, a third point of support for the part b comprising 40 providing free radial access and adapted to receive the
articles to be heat-treated, a burner disposed in each unit
a pinion f meshing with a ?xed rack h, the pinion being
at the inner end of said unit remote from its large base
connected with a hand wheel g. By actuating the hand
and nearer its small base and positioned to direct the gases
wheel g the part b is movable along the rails e towards
of combustion toward said gap.
or away from the part a, the parts a, b remaining sym
metrical, in all positions, with respect to the plane of 45 4. A furnace for the heat-treatment of metal articles,
comprising two furnace units, each comprising a steel
symmetry of the assembly.
casing lined with refractory material and having the form
In use, the parts are moved away from each other and
of a hollow truncated cone having a large base and a small
a metal article to be treated is placed in the gap between
base, said units being disposed with their large bases in
the bases of the two parts. The part b is then brought
closer to the part a, leaving a su?icient gap for gas from
the burners 01, c2 to escape. The burners c1, 02 provide
the necessary heat for heat treating the article.
As shown each part a and b comprises a casing i made,
face to face relationship and being symmetrically disposed
on both sides of a plane parallel to said large bases and
passing between them, at least one of said units being
mounted on means adapted to permit said last-named
for example, of sheet steel, which is completely lined with 55 unit to move towards and away from the other unit to
leave a gap of varying width between said units provid
refractory material j.
ing free radial access and adapted to receive the articles to
be heat-treated, a burner disposed in each unit at the inner
removal of the article or articles to be treated can be
end of said unit remote from its large base and nearer its
effected rapidly and easily and entails few operational 60 small base and positioned to direct the gases of combus
steps.
tion toward said gap.
It will be understood that the constructional details of
References Cited in the ?le of this patent
the furnace may be modi?ed without departing from the
scope of the invention.
UNITED STATES PATENTS// """
What I claim is:
Spearman __________ __,_.. June 10, 1884
300,329
1. A furnace for the heat-treatment of metal articles, 65
1,675,735
Stohr ________________ .... July 3, 1928
comprising two furnace units, each having the form of a
hollow truncated cone having a large base and a small
2,589,495
Hess et al _____________ __ Mar. 18, 1952
The furnace can be economically constructed and the
operation is simple and reliable and the positioning and
h
Документ
Категория
Без категории
Просмотров
0
Размер файла
212 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа