US2964853A - Drying helmet - Google Patents

Description

Dec. 20, 1960 W. H. BRASKAM P DRYING HELMET Filed March 20, 1958 2 Sheets-Sheet 1 3 lli .hl MII wir l elli Dec- 20, 1960 w. H. BRASKAMP 2,964,853

DRYING HELMET Filed March 20, 1958 2 Sheets-Sheet 2 DRYING HELMET WillemzHendrilr'Braskamp, Voorburg, Netherlands, assignor to N.V. Industriele Onderneming W. H. Braskalmp,l Rijswijk, Netherlands, a corporation of the Nether an s y lThe invention relates to a drying helmet for'use in a hair-dressingy establishment, saiddrying helmet being litted` with a ventilator and a heating element, which have been combined in such a way that a current of hot air is produced which is directed towards the mouth of the helmet. Such a drying helmet is universally known and is used for drying the hair of a person whose head has been introduced into the mouth of the helmet. If eilicient drying, which does not take too much time, is to be obtained with this drying helmet, a fairly high temperature is necessary, which is experienced by many people as unpleasant, while in spite of this high temperature it is impossible to prevent the circumstance that the current of air and the heat frequently do not reach particular portions of the hair or to an insufficient extent, so that in those places the drying is insuicient. lf it should be desired to obviate this drawback in the existing drying helmets by raising the temperature, this temperature would be much too high for other portions of the head of the person to be treated, so that this methtod cannot be followed.

The invention has for its object to furnish a drying helmet with which quick and efficient drying is possible at a temperature which is higher than that of the drying helmets hitherto known.

According to the invention this object is achieved by the feature that the ventilator and the heating element form a separate unit, which is suspended in the helmet in such a way that it is able to perform a swinging movement in the helmet. Owing to this swinging movement, which can be obtained by means of a special mechanical drive and suspension or by a manually operated member extending from the helmet and a suspension by means of a ball-and-socket joint, a current of air is produced which progressively heats the hair locally, which results 1n effective drying, the more so as the temperature can now also be higher because the air current of higher temperature acts for only a short time upon any particular place. Moreover the larger portions of hair to be dried are usually to be found at the sides of the head, which sides are now dried more thoroughly than they used to be, owing to the swinging current of hot air which acts upon them more intensively, without too high a temperature arising at the top of the head.

According to the invention the unit consisting of ventilator and heating element can be movably fitted in the helmet on two shafts at right angles to each other, while further motor-driven members are present for imparting to this unit the swinging movement in the helmet. This motor drive can be brought about in various ways.

Thus it is possible to make the devices for causing the swinging movement consist of the motor of the ventilator itself, whose shaft drives a rotary member cooperating with a member fixed in the helmet, in such a way that this rotary member performs a movement about the xed member. This rotary member can be driven directly by a continuation of the motor shaft or via a re- United States Patent ice ftarding drive, which is fitted, for example, on the casing of the motor.

The rotary member may consist of a disc which cooperates with an eccentrically fitted pin. This pin may be fixed to the disc and extend rotatably through a stationary bushing, but it is also possible for the disc to have a hole through which the pin extends rotatably.

The rotary member may also be so constructed that it has a yguide groove for a stationary rotatable member. In that case this groove is not circular but e.g. elliptical, by which it is ensured that, apart from a swinging movement in a more `oval orbit, the ventilator acts longer in some places than in others, which may be desirable in connection with the varying thickness of the hair.

The swinging movement of the ventilator in the helmet produces the additional effect that in those places which vare situated opposite the'places towards which the"ventilatorl is directed a current of air is vsucked in between the lower rim of the helmet and the head of the person to be treated, which current of air naturally has a cooling effect in that place. If the swinging movement is a circular movement, the moving Zone of hot air is thus always followed by a zone of oppositely directed cooling air, as a result of which the treatment is considerably more pleasant.

The invention will now be elucidated more fully with reference to the drawings.

Figure l is across-section through the helmet according to the invention.

Figure 2 is a similar cross-section to that of Figure 1, the helmet having been turned through The drying helmet illustrated in the drawings consists of the sheet-metal casing 1 with the closing section 2 placed on top of it and a casing 3 connected with it at the lower end, the interior of which serves to accommodate the head of the person to be treated and is separated by a grid 4 from the upper part of the helmet. At the top the sheet-metal casing 1 has an opening, the rim of which has been partly rigidied by an approximately semi-circular ring 5 in which a brace 6 is rotatably mounted in bearings about a horizontal journal 7. The casing 8 of the motor of the ventilator 9 is rotatably tted about journals 10 in the brace 6; secured to the casing 8 of the motor via fastening strips 11 is further a conducting casing 12 containing the heating coil 13. The air sucked in by the ventilator flows out in the downward direction via the heating coil.

Fitted to the ring 5 is an upwardly directed brace 14, having at its upper end a bush through which a pin 15 extends. The shaft of the motor of the ventilator has a continuation in the upward direction and `drives a worm wheel 16, on whose shaft is fitted a worm 17, which drives a worm wheel of a shaft 18, which is supported in bearings on top of the casing 8 parallel to the motor shaft and carries at the upper end a disc 19, which near its circumference carries the pin 15 mentioned above. When the motor has been put into operation, it drives the ventilator 9, but at the same time the disc 19, then swings about the axis of the pin 15, as a result of which the unit consisting of motor, ventilator, and heating coil, owing to its being pivotally fastened at 7 and 10, performs a swinging movement in the helmet.

By means of the swinging current of hot air thus obtained an effective drying of the hair inside the casing 3 is ensured because the current of hot air always progressively acts locally upon the hair, while owing to the movement of the current of hot air, in consequence of the swinging movement, a good whirling motion also takes place, which is likewise promoted by the fact that the ventilator also sucks in the air from those parts of the helmet which are opposite the zone towards which the current of hot air is directed at that moment. The

conventional air supply openings are naturally also pres-V ent.

In the two figures the tiow of the air in the helmet is further indicated by arrows. In Figure l the ventilator is shown in a position in which the hot air ows towards the back of the head. In consequence of this, air is sucked in at the front along the face of the person to be treated, this air exercising a cooling effect.

In Figure 2 the ventilator is directed at one of the sides, so that cooling air flows in on the other side.

What I claim is:

Drying apparatus comprising a helmet, a blower in said helmet and including blades, a shaft connected to the blades and a motor driving said shaft, a heating device, a frame ixedly suspending the heating device from the blower in the path of air discharged by the latter, f irst pivot means connected to the blower whereby the latter is pivotal about a first axis, second pivot means connected to the first pivot means whereby the latter and said blower are pivotal about a second axis, the axes being perpendicular and coplanar whereby the blower can be pivoted to describe a circle while maintaining a.

relatively fixed positional relationship Within said helmet, a further shaft rotatably mounted on said blowera disclike member on said further shaft for rotation therewith, means coupling said further shaft to said motor whereby the blades and disc-like member are driven simultaneously, support means supporting said second pivot means in said helmet, and a pin fixed in said helmet for engagement by the disc-like member whereby rotation of the latter pivots said blower.

References Cited in the file of this patent UNITED STATES PATENTS 1,456,433 Glasser May 22, 1923 1,655,193 Murphy Jan. 3, 1928 2,420,251 La Floriyes May 6, 1947 2,645,034 Hupp July 14, 1953 FOREIGN PATENTS 396,845 Great Britain Aug. 17, 1933 602,284 Great Britain May 24, 1948 163,164 Netherlands Jan. 15, 1955 910,282 France Ian. 21, 1946

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