US2270316A - Finish for working surface of laundry irons and the like - Google Patents

Finish for working surface of laundry irons and the like Download PDF

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Publication number
US2270316A
US2270316A US401354A US40135441A US2270316A US 2270316 A US2270316 A US 2270316A US 401354 A US401354 A US 401354A US 40135441 A US40135441 A US 40135441A US 2270316 A US2270316 A US 2270316A
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United States
Prior art keywords
iron
working surface
finish
laundry
mirror
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Expired - Lifetime
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US401354A
Inventor
Kuhn Frank
Laurence H Thomas
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American Electrical Heater Co
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American Electrical Heater Co
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Publication date
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Priority to US401354A priority Critical patent/US2270316A/en
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Publication of US2270316A publication Critical patent/US2270316A/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00Hand irons
    • D06F75/38Sole plates
    • 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
    • Y10S205/00Electrolysis: processes, compositions used therein, and methods of preparing the compositions
    • Y10S205/917Treatment of workpiece between coating steps
    • 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
    • Y10S451/00Abrading
    • Y10S451/90Gear abrader

Definitions

  • munnny IRONS AND 'rnn 1.1m
  • the invention relates to laundry irons and the like and has for its object reduction in the labor required for performance of work there with.
  • nickel or chromium is customary toelectrolytically deposit it upon an under surface of some other metal such as nickel, which under surface is first prepared by imparting thereto a mirror-like finish which is reproduced in the chrome plating.
  • Our invention is based on the discovery that frictional resistance due to the movement of the iron over the surface with which it is in contact is reduced by substituting for the mirror-like surfacea surface less highly polished. It has .been found by carefully conducted scientific'tests that the frictional resistance measured by the force required to move the iron over the work can be reduced as much as fifty percent,.when a .dull finish is substituted for a mirror finish.
  • Fig. 1 is a bottom plan view of a laundry iron illustrating diagrammatically the character of the working surface thereof;
  • Fig. 2 is a rear end elevationof Fig. l;
  • Fig. 3 is a cross section illustrating on a magnified scale the character of both the under and the working surface of the iron.
  • A is a laundry iron of any suit able construction
  • B is the bottom or sole plate thereof. formed of any suitable material such as iron or steel, which, after preliminary grinding, .is provided with a fairly heavy electrolytic deposit 0 of some other metal such as nickel.
  • the lower surface of this coating is'then prepared, preferably by bufling with a soft fabric wheel and a suitable grade of abrasive.
  • abrasive emery or a similar abrasive may be used, of a grade between 120 and 400 grit, preferably 140.
  • The'prepared surface is themcoated with an electrolytic deposit D of chromium, which is quite thin and conforms to the characterof the under surface.
  • Alaundry iron formed as above described will offer a greatly reduced frictional resistance to sliding movement over the surface that is being ironed, particularly where this movement is in of, a surface having'the microscopic lines therein extending longitudinally of the iron will have an advantage over one in which the linesextend in some other direction. While we do not fully understand the reason for such effect, experimental evidence has fully demonstrated the same.
  • What we claim as our invention is: 1. In a laundry iron or the like, a sole plate provided with a metallic working surface havcharacteristic formed by parallel microscopic lines extending in one direction thereacross.
  • a sole plate having a. non-mirror-like working surface with parallel i 50 microscopiclines therein extending longitudinally Third, in such a surface where the microscopic I of the iron.
  • a sole plate having onits lower surface an electrolytic coatin: of another metal, .said coating having its outer surface smooth but non-mirror like and The body of this plate may be 2 2,270,310 with parallel microscopic lines extending longiresponding to that produced by an abrasive betudinally thereof, and. a chromium electrolytic tween 120 and 400 grit and with parallel microcoating upon said first-mentioned coating havscopic lines therein extending longitudinally of ing a corresponding surface. said sole plate.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)

Description

Jan.20', 1942. K HN Em 2,270,316
FINISH FOR WORKING SURFACE OF LAUNDRY IRONS AND THE LIKE Filed July 7, 1941 nvvszvrons FRANK KUHN BY F LAURENCE II-1on5 MmI/MMW A T RNEYs r Patented Jan. 20, 1942 FINISH FOR woaxmc simmer: or
munnny IRONS AND 'rnn 1.1m:
Frank Kuhn, Detroit, and Laurence H. Thomas, Birmingham, Mich. assignors to American Electrical Heater Company, Detroit, Mich a corporation of Michigan Application July 1,1941, Serial N... 401,3 g, 50mm (01. 38-93) 1 The invention relates to laundry irons and the like and has for its object reduction in the labor required for performance of work there with.
In the manual operation of ironing, a considerable portion of the effort required is in overcoming the frictional resistance to the sliding of the iron over the surface operated. upon. To reduce this resistance, it has been the practice to form the working surface of the laundryirons with a highly polished mirror-like finish. 'Also,
in recent years it has been usual to plate the working surface with a metal differing from that forming the body of the, iron, as, for instance,
nickel or chromium. Where thelatter material is used, it is customary toelectrolytically deposit it upon an under surface of some other metal such as nickel, which under surface is first prepared by imparting thereto a mirror-like finish which is reproduced in the chrome plating.
Our invention is based on the discovery that frictional resistance due to the movement of the iron over the surface with which it is in contact is reduced by substituting for the mirror-like surfacea surface less highly polished. It has .been found by carefully conducted scientific'tests that the frictional resistance measured by the force required to move the iron over the work can be reduced as much as fifty percent,.when a .dull finish is substituted for a mirror finish.
It has'also been found that where the less highly polished surface is formed by abrasive material moved in one direction with respect to the iron, the friction will be less to movement in this direction than to a movement transverse thereto. Inasmuchasa laundry iron is usually manipulated by a movement longitudinally there- Inasmuch as the change in structure is miexaggerated in the drawing, in which:
Fig. 1 is a bottom plan view of a laundry iron illustrating diagrammatically the character of the working surface thereof;
Fig. 2 is a rear end elevationof Fig. l; and
Fig. 3 is a cross section illustrating on a magnified scale the character of both the under and the working surface of the iron. v
As illustrated, A is a laundry iron of any suit able construction, and B is the bottom or sole plate thereof. formed of any suitable material such as iron or steel, which, after preliminary grinding, .is provided with a fairly heavy electrolytic deposit 0 of some other metal such as nickel. The lower surface of this coating is'then prepared, preferably by bufling with a soft fabric wheel and a suitable grade of abrasive. For the latter, emery or a similar abrasive may be used, of a grade between 120 and 400 grit, preferably 140. The
' the latter. so that the effect will be to form parallel microscopic lines extending longitudinally of the iron. The'prepared surface is themcoated with an electrolytic deposit D of chromium, which is quite thin and conforms to the characterof the under surface.
7 V Alaundry iron formed as above described will offer a greatly reduced frictional resistance to sliding movement over the surface that is being ironed, particularly where this movement is in of, a surface having'the microscopic lines therein extending longitudinally of the iron will have an advantage over one in which the linesextend in some other direction. While we do not fully understand the reason for such effect, experimental evidence has fully demonstrated the same.
Our invention therefore consists:
First, in a working surface for a laundry iron or the like which has a smoothbut non-mirrorlike character;
Second, in such a surface where the microscopic lines extendparallel to each other over themtire surface;
lines'extend parallel to each other. and longiafter set forth.
40 ing a substantially smooth but non-mirror-like a direction longitudinal with respect to the iron.
What we claim as our invention is: 1. In a laundry iron or the like, a sole plate provided with a metallic working surface havcharacteristic formed by parallel microscopic lines extending in one direction thereacross.
2. In a laundry'iron or the like, a sole plate provided ,with a non-mirror-like working surface with parallel microscopic lines extending in one direction thereacross corresponding to that produced by an abrasive of grit. v
3. In a laundry iron, a sole plate having a. non-mirror-like working surface with parallel i 50 microscopiclines therein extending longitudinally Third, in such a surface where the microscopic I of the iron.
4. In a .laundry iron. or the like, a sole plate having onits lower surface an electrolytic coatin: of another metal, .said coating having its outer surface smooth but non-mirror like and The body of this plate may be 2 2,270,310 with parallel microscopic lines extending longiresponding to that produced by an abrasive betudinally thereof, and. a chromium electrolytic tween 120 and 400 grit and with parallel microcoating upon said first-mentioned coating havscopic lines therein extending longitudinally of ing a corresponding surface. said sole plate.
5. In a laundry iron orthe like, a sole plate 5 FRANK KUHN. having a non-mirror-like working surface cor- LAURENCE H. THOMAS.
US401354A 1941-07-07 1941-07-07 Finish for working surface of laundry irons and the like Expired - Lifetime US2270316A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534911A (en) * 1948-04-03 1950-12-19 Houdaille Hershey Corp Process of removing hydrogen embrittlement of bright nickel electrodeposits
US2738603A (en) * 1953-06-15 1956-03-20 Towne Shirley Nelson Ironing device
US2764825A (en) * 1954-09-01 1956-10-02 Hecla Electrics Proprietary Lt Smoothing or pressing irons and the like
US2846793A (en) * 1955-04-21 1958-08-12 Hoover Co Smoothing iron soleplate
US4445025A (en) * 1982-11-01 1984-04-24 Athena Controls Inc. Low mass flexible heating means
FR2641553A1 (en) * 1989-01-11 1990-07-13 Seb Sa EMBOSSED IRON SOLE
EP0457689A1 (en) * 1990-05-18 1991-11-21 Seb S.A. Iron sole plate with a friction reducing coating
EP0457678A1 (en) * 1990-05-18 1991-11-21 Seb S.A. Iron sole plate with a non-stick coating
FR2686103A1 (en) * 1992-01-10 1993-07-16 Moulinex Sa Method for treating an iron plate and plate obtained by this method
EP0712954A1 (en) 1994-11-18 1996-05-22 ARIETE S.r.l. Method for manufacturing irons with steel sole plate
DE19854740A1 (en) * 1998-11-27 2000-05-31 Hohe Gmbh & Co Kg Iron, especially a steam iron, has a steel sole plate with a hard and scratch resistant electroplated metal layer

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534911A (en) * 1948-04-03 1950-12-19 Houdaille Hershey Corp Process of removing hydrogen embrittlement of bright nickel electrodeposits
US2738603A (en) * 1953-06-15 1956-03-20 Towne Shirley Nelson Ironing device
US2764825A (en) * 1954-09-01 1956-10-02 Hecla Electrics Proprietary Lt Smoothing or pressing irons and the like
US2846793A (en) * 1955-04-21 1958-08-12 Hoover Co Smoothing iron soleplate
US4445025A (en) * 1982-11-01 1984-04-24 Athena Controls Inc. Low mass flexible heating means
FR2641553A1 (en) * 1989-01-11 1990-07-13 Seb Sa EMBOSSED IRON SOLE
EP0378479A1 (en) * 1989-01-11 1990-07-18 Seb S.A. Enamelled iron sole plate
US5014454A (en) * 1989-01-11 1991-05-14 Seb S.A. Smoothing iron having screen printed enamel strips wider at the front and narrower at the rear of the pressing sole surface
EP0457689A1 (en) * 1990-05-18 1991-11-21 Seb S.A. Iron sole plate with a friction reducing coating
EP0457678A1 (en) * 1990-05-18 1991-11-21 Seb S.A. Iron sole plate with a non-stick coating
FR2662189A1 (en) * 1990-05-18 1991-11-22 Seb Sa IRON IRON WITH AN INSOLE COVERED BY ANTI-ADHESIVE COATING.
FR2662188A1 (en) * 1990-05-18 1991-11-22 Seb Sa IRON IRONING WITH AN INSOLE COVERED BY A COATING REDUCING FRICTION.
US5165184A (en) * 1990-05-18 1992-11-24 Seb S.A. Ironing device sole-plate with coated ribs
US5165185A (en) * 1990-05-18 1992-11-24 Seb S.A. Ironing device sole-plate with resin projections
FR2686103A1 (en) * 1992-01-10 1993-07-16 Moulinex Sa Method for treating an iron plate and plate obtained by this method
EP0712954A1 (en) 1994-11-18 1996-05-22 ARIETE S.r.l. Method for manufacturing irons with steel sole plate
DE19854740A1 (en) * 1998-11-27 2000-05-31 Hohe Gmbh & Co Kg Iron, especially a steam iron, has a steel sole plate with a hard and scratch resistant electroplated metal layer

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