US 2008864 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
July 23, 1935. s. A. HAMILTON HAIR DRIER Filed April 20, 1933 2 Sheets-Sheet 1 AIL/Z Zhwentgr (Ittomegs July 23, 1935. s. A. HAMILTON HAIR DRIER 2 Sheets-Sheet 2 Filed April 20, 1933 dijifiwmiltazi 3mm,
' Patented July 23, 1935 UNITED STATES HAIR DRIER Sidney Alexander Hamilton, Shreveport, La.
Application April 20, 1933, Serial No. 867,074
2 Claims. (01. 34-26) This invention relates to a hair drier for use in beauty parlors and the like, one of the objects being to provide a simple and compact structure wherein the hair is subjected to the drying action 5 of air circulating entirely within the apparatus.
Another object is to provide apparatus which can be operated at low cost, utilizing any preferred form of heater, it being possible to employ a battery of heat applying hoods for use simul- 10 taneously on a number of patrons.
' Another object is to provide means whereby the circulation of the air can be controlled readily both as to volume and velocity.
With the foregoing and other objects in view 20 made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.
In the accompanying drawings the preferred form of the invention has been shown. 25 In said drawings:
Figure 1 is a View partly in side elevation and partly in section of the apparatus constituting the present invention.
Figure 2 is a vertical longitudinal section 30 through the apparatus taken substantially on the line 22, Figure 1, parts being broken away.
Figure 3 is a section on line 3-3, Figure 1.
Figure 4 is a section taken substantially on line 4-4, Figure 1, parts being broken away.
5 Figure 5 is a view showing in detail a cluster of air ports in the hood.
Referring to the figures by characters of reference l designates a housing which can be of any suitable size and proportions. Arranged within this housing adjacent to the center thereof is a heater casing 2 containing a heater of any preferred construction. For. example a series of burners 3 for consuming gas can be arranged within the lower portion of the casing 2 where 45 they are supplied with gas from a pipe 4 having a controlling valve 5. Any suitable thermostat mechanism, indicated generally at 6, can be operatively connected by any well-known means to the valve so as to maintain a substantially 50 uniform temperature within the apparatus. A vent pipe 1 extends from the upper portion of the heater casing 2 and opens at any convenient point through the top of housing I so that fumes can thus be carried off from within the heater.
55 Located in thehousing l at opposite sides of which will appear as the description proceeds,
the heater casing are drums 8 and 9 joined by an air jacket l0 which extends upwardly from the drum 8 tangentially thereof along one side of the casing 2, over the top of the casing and along the opposite side of said casing to the drum 5 9. Thus the two drums are constantly in communication but air flowing from one drum to the other must travel along the outer surfaces of the heater casing 2.
Arranged above the heater casing and extend- 10 ing lengthwise of the housing I are a distributing flue l I and a return flue l2 arranged in superposed relation. The upper or return flue I2 is of less width than the lower flue ll so that said lower flue will thus extend laterally beyond the upper flue l2 as clearly shown in Figure 1. A a port i3 is provided between these flues and is normally closed by a relief valve I4 which will open upwardly to permit direct flow of air from fluel i into flue l2 should the air be subjected to excessive pressure. I
The return flue I2 is joined at one end to one end of the drum 8, as indicated at l5 and one end of the distributing flue H is joined at it to one end of the drum 9.
Journalled within drum 9 is a shaft ll adapted to be driven by an electric motor 6 8 or the like and this shaft carries a fan 89 located in the drum between its connection 5 and the inlet 20 from the jacket l0. The thermostat apparatus 6 is preferably located in the drum 9 near its outlet end.
Extending upwardly from the projecting side portions of the distributing flue H are branch flues 2! in the form of tubular posts which extend to the top of the housing I and are fastened thereto in any suitable manner. Additional branch flues 22 are extended upwardly from the return flue l2 and each of these may be attached in a suitable manner to the top of housing 9 One flue. 22 is provided for each flue 2i and the flues 2i and 22 of each pair are located close together and in parallel relation as shown in Figure 1.
Slidably mounted in the upper portion of the housing adjacent to each pair of flues 2| and 22 is a rod 23 yieldingly supported by a spring 24 and provided with an adjustable collar 25 whereby the upper end of the rod can be maintained normally at a predetermined elevation.
The upper end of each of the rods 23 is joined to a head 26 in which is seated a pair of outlet flues 2'! and 28 which extend over the housing I and merge into downwardly projecting extensions 29 and 30 which telescope within the flues 2| and 22 respectively. These outlet flues 21 and 28 support a hood 3| adapted to be fitted onto the head of a patron. The hood is formed with an inner lining 32 and an intermediate lining 33 so that an air jacket 34 is thus formed between the intermediate lining 33 and the outer structure of the hood while another air jacket 35 is formed between the intermediate lining 33 and the inner lining 32. Short tubular connections 36 open through the intermediate lining 33 and the inner lining 32. Surrounding each of the ports thus provided in the inner lining 32 is a group of small inlet ports 31 which open into the air jacket 35. Thus each outlet port formed by a tubular connection 36 and its associated inlet ports 31 cooperate to form a cluster whereby air issuing under pressure from the ports 36 will be projected in the formof a needle spray and can subsequently flow into the adjacent ports 31. This arrangement of ports has been shown in detail in Figure 5.
The flue 21 opens into the air jacket 34 in the hood and the flue 28 opens into the air jacket 35. Each of these flues is provided with a valve 38 connected to an operating lever 39 or the like whereby the flow of ai through the flues can be controlled. Another v lve 48 normally closes a port 4i joining the two flues 21 and 28. This valve can be operated by any suitable means, such as a lever 42 to permit air to circulate directly from one flue to the other without entering the hood. I
As has been stated heretofore this apparatus can be made to permit treatment of a number of patrons simultaneously. For example, and as shown in the drawings, two hoods can be mounted at each side of the housing I. Obviously this number can be increased or reduced.
When heat is generated within the casing 2 the surfaces of the casing will be raised to a high temperature. When the fan I1 is set in motion a forced circulation of air will be. set up. The air will be drawn from the jacket l0 where it has been heated and will enter drum 9 through inlet 20. It will then be expelled through the connection lfi into flue II and then distributed through the branch flues 2| into the extensions 29 of flues 21. If the valves 38 are open and valve 40 closed the heated air thus supplied to flues 21 will be directed into the jackets 34 from which it will be discharged in jets through the ports 36. It is understood of course that during this operation the hood is applied to the head to be dried. Consequently the jets of air issuing from the ports will flow into the hair and be dissipated so as to return in part through the ports 31 to flues 28. The circulation of the heated air through the hair thus tends quickly to dry it and the air, while still in a warm condition, will be sucked through flues 28 to flue l2 and thence to the drum 8 from which'it will escape to the jacket It] in its travel back to the drum 9. As the air is warm when returned to the drum 8 less heat will be required to restore it to its proper temperature than should a constant supply of cold air be furnished to the heater. In other words, when the hoods are in use the air operates practically in a closed circuit and its temperature thus can be kept at a high degree with the expenditure of very little fuel.
By mounting the hoods as described they can be adjusted vertically so as to be applied readily to patrons of different heights.
It is to be understood that, if desired, any suitable separators or moisture absorbing means can be used within the apparatus for keeping the circulating air in a dry condition.
What is claimed is:
l. A hair drier including a hood adapted to house that portion of a head of a patron to. be dried, there being an air distributing jacket and an air return jacket in the hood and ports exjackets in the hood and the distributing and return flues respectively, means for setting up a forced circulation of air from the return flue to the heater and from the heater to the distributing flue, means within the extensible flues for controlling the flow of air to and from the jackets and a normally closed valved opening between the flues adapted, when open, to allow circulation of air from one flue to the other when air is shut off from the jackets by said air controlling means.
2. A hair drier including a hood adapted to house that portion of a head, of a patron to be dried, there being an air distributing jacket and an air return jacket in the hood and ports ex-' tending from the respective jackets for directing air to and from the hair of the head in the hood, said jackets being substantially coextensive and arranged one within the other, an air heater, an air distributing flue, an air return flue, extensible flue connections between said jackets in the hood and the distributing and return flues respectively, means for setting up a forced circulation of air from the return flue to the heater and from the heater to the distributing flue, a relief valve normally closing communication between the distributing and return flues, and means within the extensible flues for controlling the flow of air to and from the jackets.
sro. A. HAMILTON.