US2271327A - Air nozzle - Google Patents

Air nozzle Download PDF

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Publication number
US2271327A
US2271327A US327695A US32769540A US2271327A US 2271327 A US2271327 A US 2271327A US 327695 A US327695 A US 327695A US 32769540 A US32769540 A US 32769540A US 2271327 A US2271327 A US 2271327A
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United States
Prior art keywords
nozzle
blank
pattern
conical
air nozzle
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
US327695A
Inventor
Frederick H Chirgwin
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.)
BF Sturtevant Co
Original Assignee
BF Sturtevant Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BF Sturtevant Co filed Critical BF Sturtevant Co
Priority to US327695A priority Critical patent/US2271327A/en
Priority to US418430A priority patent/US2347149A/en
Application granted granted Critical
Publication of US2271327A publication Critical patent/US2271327A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/26—Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect

Definitions

  • This invention provides a simple, relatively inexpensive air nozzle which avoids the objection o prior nozzles.
  • a pattern of the nozzle is laid out upon an
  • the ejector nozzles are usuallyl formed from galvanized sheet iron and the moisinsulating composition board of the type known y as heat insulating Wall board, a suitable one being formed from cellulose fibre such as bagasse.
  • the pattern corresponds, of course, to a developed, unrolled nozzle.
  • the board is cut into blanks corresponding to the pattern;A are slitted along spaced converging lines; are then rolledfin succession over one or more conical templates; wire is Wrapped around each, and then after rev moval from the template, each assembly is dipped into hot tar which not only lls the slits and covers the wire but adds a pleasing glossy appearance.
  • An object of the invention is of insulated aii ⁇ nozzles.
  • Fig. 1 is a plan View of an unrolled, slotted, nozzle blank formed from an insulating board
  • Fig. 2 is an end view looking at the right hand end (facing the drawing) of Fig. 1;
  • Fig. 3 is a sectional View of one embodiment of a completed nozzle incorporating this invention, with section taken along the longitudinal center, and
  • Fig. 4 is a view showing a completed nozzle embodying this invention, connected to a supply duct.
  • the nozzle to be formed is a conical one, and the developed pattern is laid out upon a cellulose insulating board, following which the blank 5 conforming to the pattern and shown by Figs. l and 2, is cut out.
  • the equally. spaced slits 6 are cut along lines converging to the apex of the cone which would be formed by extension of the lines,
  • Fig. 4 illustrates how the nozzle is mounted to the supply duct Il by beading the end of the collar 8 at l2.
  • the tar I forms a smooth, glossy covering for the nozzle causing it to appear a's well as prior more expensive nozzles, and at the same time lls the slits 6, covers the wires 1 and binds the assembly together. While tar has been foundy satisfactory, other thermoplastic materials may be used.
  • the method of forming a conical air nozzle which comprises forming a developed pattern of a conical nozzle, cutting a blank corresponding to the pattern vfrom an insulating board, cutting slits along spaced converging lines partially through the blank, rolling the blank to the shape of the nozzle, tying the nozzle to prevent unrolling, and then dipping the assembly into aA heated thermoplastic solution.
  • the method of ⁇ forming a conical air nozzle which comprises forming a developed pattern of a conical nozzle, cutting a blank corresponding to the pattern from an insulating board, cutting slits along spaced converging lines partially through the blank, rolling the blank to the shape of the nozzle, wiring the nozzle to prevent unrolling, and then dipping the assembly into a heated thermoplastic solution.
  • the method of forming a conical air nozzle which comprises forming a developed pattern of a conical nozzle, cutting a blank corresponding to the pattern from an insulating board, 'cutting slits along spaced converging lines partially through the blank, rolling the blank to the shape of the nozzle, wiring the nozzle to prevent unrolling, and then dipping the assembly into heated tar.

Description

Jan. 27, v1942. F. H. CHIRGWIN AIR NOZZLE Filed April 3, 1940 INVENTOR Flacone/cn( H cHew/v w C7 GDM ATTORNEY Patented Jan. 27, 1942 carico saves Prem ottici:
AIR NOZZLE Frederick H. Chirgwin, Los Angeles, Calif., assignor to B. F. Sturtevant Company,y Boston.
Mass.
Application April 3, 1940, Serial No. 327,695
3 Claims.
ture in the air condenses upon their surfaces and drips down upon the floors. Such nozzles have been insulated by placing thick, conical shaped cork nozzles over them but the expense has been great.
This invention provides a simple, relatively inexpensive air nozzle which avoids the objection o prior nozzles. In one embodiment of the invention, a pattern of the nozzle is laid out upon an The ejector nozzles are usuallyl formed from galvanized sheet iron and the moisinsulating composition board of the type known y as heat insulating Wall board, a suitable one being formed from cellulose fibre such as bagasse. The pattern corresponds, of course, to a developed, unrolled nozzle. The board is cut into blanks corresponding to the pattern;A are slitted along spaced converging lines; are then rolledfin succession over one or more conical templates; wire is Wrapped around each, and then after rev moval from the template, each assembly is dipped into hot tar which not only lls the slits and covers the wire but adds a pleasing glossy appearance.
An object of the invention is of insulated aii` nozzles.
The invention will now be described with reference to the drawing, of which:
Fig. 1 is a plan View of an unrolled, slotted, nozzle blank formed from an insulating board;
Fig. 2 is an end view looking at the right hand end (facing the drawing) of Fig. 1;
Fig. 3 is a sectional View of one embodiment of a completed nozzle incorporating this invention, with section taken along the longitudinal center, and
Fig. 4 is a view showing a completed nozzle embodying this invention, connected to a supply duct.
The nozzle to be formed is a conical one, and the developed pattern is laid out upon a cellulose insulating board, following which the blank 5 conforming to the pattern and shown by Figs. l and 2, is cut out. The equally. spaced slits 6 are cut along lines converging to the apex of the cone which would be formed by extension of the lines,
to reduce the cost to a depth about three-fourths of the way through the board. The blank is then rolled up, Apreferably on a conical template having the correct proportions, and the wire 1, shown in section by Fig. 3, is wound spirally around its exterior. The template is then removed from the `nozzle and the collar 8 is then attached by the screws 9, in the inlet end of the nozzle. The assembly is then Fig. 4 illustrates how the nozzle is mounted to the supply duct Il by beading the end of the collar 8 at l2. y
The tar I forms a smooth, glossy covering for the nozzle causing it to appear a's well as prior more expensive nozzles, and at the same time lls the slits 6, covers the wires 1 and binds the assembly together. While tar has been foundy satisfactory, other thermoplastic materials may be used.
While one embodiment of the invention has been described for the purpose of illustration, it
' should be understood that the invention is not limited to the exact method and apparatus described as modifications thereof may be suggested l by those skilled in the art without departure from the essence of the invention.
What is claimed is:
l. The method of forming a conical air nozzle, which comprises forming a developed pattern of a conical nozzle, cutting a blank corresponding to the pattern vfrom an insulating board, cutting slits along spaced converging lines partially through the blank, rolling the blank to the shape of the nozzle, tying the nozzle to prevent unrolling, and then dipping the assembly into aA heated thermoplastic solution.
2. The method of `forming a conical air nozzle, which comprises forming a developed pattern of a conical nozzle, cutting a blank corresponding to the pattern from an insulating board, cutting slits along spaced converging lines partially through the blank, rolling the blank to the shape of the nozzle, wiring the nozzle to prevent unrolling, and then dipping the assembly into a heated thermoplastic solution.
3. The method of forming a conical air nozzle, which comprises forming a developed pattern of a conical nozzle, cutting a blank corresponding to the pattern from an insulating board, 'cutting slits along spaced converging lines partially through the blank, rolling the blank to the shape of the nozzle, wiring the nozzle to prevent unrolling, and then dipping the assembly into heated tar.
` FREDERICK H. CHIRGWIN.
dipped into melted tar which forms the coating
US327695A 1940-04-03 1940-04-03 Air nozzle Expired - Lifetime US2271327A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US327695A US2271327A (en) 1940-04-03 1940-04-03 Air nozzle
US418430A US2347149A (en) 1940-04-03 1941-11-08 Air nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US327695A US2271327A (en) 1940-04-03 1940-04-03 Air nozzle

Publications (1)

Publication Number Publication Date
US2271327A true US2271327A (en) 1942-01-27

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US327695A Expired - Lifetime US2271327A (en) 1940-04-03 1940-04-03 Air nozzle

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2968126A (en) * 1955-08-15 1961-01-17 Pittsburgh Plate Glass Co Blowing frame for tempering glass sheets
US4335526A (en) * 1978-08-09 1982-06-22 Smith Judson L Vehicle drying machine and method
US4393602A (en) * 1978-08-09 1983-07-19 Smith Judson L Vehicle drying machine and method
US4622714A (en) * 1985-04-19 1986-11-18 Sherman Industries, Inc. Fluid stripping apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2968126A (en) * 1955-08-15 1961-01-17 Pittsburgh Plate Glass Co Blowing frame for tempering glass sheets
US4335526A (en) * 1978-08-09 1982-06-22 Smith Judson L Vehicle drying machine and method
US4393602A (en) * 1978-08-09 1983-07-19 Smith Judson L Vehicle drying machine and method
US4622714A (en) * 1985-04-19 1986-11-18 Sherman Industries, Inc. Fluid stripping apparatus

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