US2798122A - Voice reporting apparatus and the like - Google Patents

Description

l-wb sa Pff July 2, 1957 H. UNGARsoHN 2,798,122

voIcE REPORTING APPARATUS AND THE LIKE Filed oct. 2, 195s 5 I 759:3 /gf/ A/mesa//f'u Y. A27a/51W@ y a@ n Wawy United States Patent C M VOICE REPORTING APPARATUS AND THE LIKE Harry Ungarsohn, Floral Park, N. Y.

Application October 2, 1953, Serial No. 383,731

3 Claims. (Cl. 179-188) The present invention relates to voice reporting apparatus and more particularly to a type adaptable to be held in hand and having a mask on a sound-muting device so that dictation is silent. This apparatus may include a microphone for connection in circuit with an electrical recording means or merely a mouth-piece for a mechanical recording means or other voice-operated means.

The principal object of this invention is to provide a novel and improved apparatus of the character mentioned which eciently stities the sound uttered by the user so it is unheard by anyone near him and though the mentioned mask encompasses his mouth and nose, normal breathing is in no manner interfered with.

Another object hereof is to provide a novel and improved apparatus of the nature set forth, affording means to correct to silence in the event its operating condition needs it.

A further object of this invention is to provide a novel and improved construction for apparatus of the kind described, which is simple in structure, reasonably cheap to manufacture, easy to use, convenient and light to hold and carry and efcient in performing the functions for which it is designed.

Other objects and advantages will become apparent as this disclosure proceeds.

In the accompanying drawings forming part of this specification, similar characters of reference indicate corresponding parts in all the views.

Fig. 1 shows a longitudinal view of a voice reporting or similarly used apparatus embodying the teachings of this invention. Part of this View is in section and the apparatus is shown in use.

Fig. 2 is the end view thereof showing the mask which is included in this apparatus.

Fig. 3 is the other end view thereof.

Fig. 4 is a central longitudinal section through Fig. 1 and may be deemed the section taken at lines 4-4 in Fig. 2.

Fig. 5 is a face view of one of the partition members shown in Fig. 4.

Fig. 6 is an exploded sectional view of structure permitting the casing to be sectional so that it may be provided with any desired number of chambers in its build-up.

In the drawings, the numeral designates a tubular casing having a facial mask 16 mounted on one end to encompass the mouth and nose of the user 17; such mask being of soft rubber composition as is well known in this art, and is provided with an opening 18 communicative with said casing. This casing is divided into a number of chambers 19, 20, 21 along its length by the spaced partition members 22, 23, 24 and the end 25. These partitions are preferably resiliently mounted by having them in the annular soft rubber channel rings 26 which are secured on the inner wall of said casing. Through each of said partitions and the said end wall 25, is mounted a tubular member yas 27 which is pref- Patented July 2, 1957 erably flared at intake end, meaning the end thereof nearest the user 17. Such tubular members may extend in any direction, but it is preferred that they shall be in angular relation so that one empty into the other with some space between them along the casing 15.

Each of the chambers may be provided with an opening for drainage, filled by a removable cork 28. When the partitions are circular discs rotatably mounted in the annular channels 26 and provided on the face with a series of spaced indentations 28, they may be turned to shift the positions of the tubular members 27, 29, 30, respectively by insertion of a suitable tool through said holes when uncorked. The spoken sound is muted in its travel through the chambers. Particular angular relationships of the several tubular members 27, 29, 30, 31 aid this silencing action, so that the spent voice at exit end of tubular member 31 is practically of nil sound intensity.

For use of the described apparatus for voice reporting and other dictation where an electrical recording means is employed, its microphone 32 is mounted on a seat therefor Within the mask cavity, at a position preferably below the opening 18 and tilted forwardly downwardly. An electrical switch 33 ofthe push-button type, to control the microphone circuit determining recording machine operation, is convenient when placed so that its operating button 33 extends from the rear end member 25. The lead Wires 34 from the microphone and the lead wires 35 from said switch, are suitably connected in circuit not shown.

For use with mechanical recording means or other voice-operated apparatus benefited by or requiring voice silencing, the mouth-piece 36 thereof is mounted in the aforesaid microphone position. In such instance, there would be the exible tubular connection from such mouth-piece as indicated by the numeral 37, to voice intake of the associated system.

If desired, provision may be made to have the chamber structure of annexed sections or to add on additional voice-deadening chambers by coupling structure as for instance shown in Fig. 6, where the tubular members 38 and 39 are telescopic and suitable set-screw means are provided to effect assembly.

The casing 15, its partitions and tubular members carried by the latter, may be of plastic, metal sheeting, cardboard or other suitable material. If desired, the partitions as shown at 40 may be of rubber and the mask of a rigid material as operating conditions and price considerations may dictate.

It is of importance to note that in use, though the mask-end is closed by the face of the operator, there is no air cut-off and hence no interference with the normal breathing of the user and no necessity to remove the mask from the face in order to breathe.

This invention is capable of numerous forms and various applications without departing from the essential features herein disclosed. It is therefore intended and desired that the embodiments shown shall be deemed illustrative and not restrictive and that the patent shall cover all patentable novelty herein set forth; reference being had to the following claims rather than to the specific description herein to indicate the scope of this invention.

I claim:

1. In an apparatus to stifle sound waves of speech, an elongated tubular casing, a mask for at least the mouth of a person, mounted across one end of the casing and having an opening into the casing, means to receive voice sound waves positioned within the mask, spaced from said opening, spaced wall members partitioning the casing whereby chambers are formed therein in succession therealong and open-ended tubular members, positioned one through each of said partition members whereby each tube lies within two such chambers respectively; the ends of successive tubular members being in spaced relation along the casing; the longitudinal axes of at least two successive tubular members being in angular relation and at least one of the partitions being rotatable in its plane whereby such angular relation may be altered.

2. The `apparatus as defined in claim 1, wherein each rotatable partition member is provided with tool-engageable elements on its surface; the casing having a closable opening whereby a tool may be inserted therein to engage one of said elements to shift said rotatable partition a part turn.

3. The yapparatus as dened in claim 1, wherein each rotatable partition is mounted in an annular channel member mounted on the inner surface of the casing; such channel member being of resilient material.

References Cited in the file of this patent UNITED STATES PATENTS 1,227,363 Baird May 22, 1917 1,345,717 Thomas July 6, 1920 1,874,326 Mason Aug. 30, 1932 2,625,615 Webb Jan. 13, 1953 2,670,054 Tuttle Feb. 23, 1954 FOREIGN PATENTS 26,779 Great Britain 1909 133,841 Austria June 26, 1933

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