US1583088A - Telephone head set - Google Patents

Description

- 1,588,088 w. J. MURDOCK TELEPHONE HEAD SET Fil ed April 18, 1922' Q; Ifivent or i F %MH f Patented May 4, 1926.

UNITED STATES,

WILLIAM J. MURDOCK, on oHnnsnA, MASSACHUSETTS. Y

TELEPHONE HEAD SE Application filednpril 18,1922. SeriaLNo. 554,957;

receivers may be supported over the ears of the wearer and which is adjustable to conform to the wearers head.

this invention reference may be had to the accompanying drawings in which Figure 1 is a front elevation of the set, a portion of one of the telephone receivers being broken away. v

' Figure 2 is an end elevation, the receivers being removed. Y 1

Figure 3 is a section on '1ine=3-'3- of Figure 1. I

Figure 4 is a perspective of a clamping connection plate. c

Figure 5 is a detail section on line 5'5 of Figure 2. g

Referring first to Figure 1, at 1 areindicated'a pair of telephone receivers of. any suitable or usual construction. v Each receiver is pivoted between a pair of arms 2 and 3 (see Figuresfl and 2) formed from a strip which is bent or folded back on it-i self in contacting relation centrally as at 4, as shown in Figure 2, to forma fiat comparatively' thin shank or 'stern portion 5, the ends of the strip being then separated at point 6 and outwardly curved to form the 4 arms 2 and 3. At the ends of these arms are fixed inwardly extending pivot pins 7 .which may be 'engaged in suitable pivotal openings in the receivers 1' to'permit .the recelvers to rock on theseplvots.

The side portlons of each shank 5 may be f fastened together by means such as a rivet 8 passed therethrough adjacent the point 6.

These shanks 5 of the receiver supports are For amore complete] understanding of "margins as at '18.

PA E OF IC positely disposed laterally extending ears 1 1,

and between these ears, spring portions as 12, are bent from the plane'of the plate toward parallelism. with each other. Each portion 12 is provided with an opening 13 to receive the shank 5 whichis passed through both openings '13 of one of the plates" 10. The outer ends of the portions 12tend' to spring away from parallelism with each other, so that the edges of the openings or perforations 13 clamp against the' shank, tending to prevent endwise'movementfthere- .of relative tothe plate; By pressingthe outer'ends of the spring portions 12150 gether, theshank maybe released so that it" may be ad usted lengthwise relativetoithe plate. p y

It is desirable-to permita slight rocking motion of each support 5 and for this pur' pose the perforations or openingslamay be atound' segmental in shape so that the inner edge of the shank 5 bears at the apex of the segmental portion and the outer edge bears atsome point along the circumference of the segment, this belngshown more clearly in Figure 5 in which the shank is shown in full 1 lines in a central position in the opening 13 and in dotted lines as rocked over to oneslde thereof about the inner edge as a pivot.

This rockingmotion may takeplace quite.

for attachment of the, head bands 15 by which the receivers are sprung toward each other so as tohold 1n placeagainst the ears of the wearer, the bands lfifextendlng over the top of the wearersheadQ As shown'each band comprises a'curve'dflat springelement 16 providedwith a cloth cover comprising sections 17 extending on either side of the spring band and stitched together near their They may, however, be formed in any suitable way without departing from this invention. J i For the purpose of attaching the bands to the plates eachendof each band has "fixed thereto an attaching clip 20 having a socket p portion 21' crimped 'or otherwise fastened over. the end of the band and a flat portion 22 overlapping one side of the plate 10 and provided with spaced perforations -13. The perforation 23 at the end of this portion has passed therethrough a screw 2%, or other pivotal connection as may be desired, which also passes through a perforation 25 in one of the ears 11 and. into a backing or damp ing piece 26 positioned against the opposite face of the plate 10. The otheropening 23 has passed therethrough a screw 27 which passes through an arcuate slot 28 in the ear 11, this slot being struck about the center of the opening 25 as a center. The screw 27 also is threaded into the piece 26. By this means each fastening member 21 has a pivotal connection with the plate 10 and its pivotal n'i-ovement is limited by the extent of the slot 28 while frictional resistance to its movement may be adjusted by adjusting the screws 24 and 27. Thus the central portions of the head bands 15 may be moved to approach or recede from each other as may .be desired by thewear'er.

Having thus described an embodiment of this invention it should be evident that many changes and modifications may be made therein without departing from its spirit or scope as defined by the appended claims.

I claim:

llIn a device not the class described, a strip folded back on itself in. contacting relation to v.i orm a. shank portion, the ends oi said strip beyond said shank portion being spaced apart to receiveand support between them a telephone receiver.

2. In a device of the class described, a strip bent back on, itself to form a shank portion, the ends of said strip beyond said shank portion being spaced apart to receive and support between them a telephone receiver, and means for supporting said shank portion for rocking movement on an axis lengthwise of said shank portion at one side of its'c'en'tral axis.-

*3. In a device of the class described, a support for a telephone receiver having a and ineans for supporting said portion with capability oi rec-king about one edge as "an :lXlS.

4-. in adcvice head band, a p

of the class described, a fixed'to each end of said band, each p having a pair of spaced sitiring' portions extending outwardly therefrom, and each portion having av segmental opening 'tlieretlirougli, and a telephone re ceiver support having a flat shank passed through the openings of each plate, said portions being normally sprung to prevent e'ndwise movement of said shanks, but said segmental openings permitting a limited "rocking motion tili'er eoi.v

' In -cl'evieepi the elass descnibed,

I support. shank portion formed of rectangular section, v

head band, a plate fixed to each end of said band, each plate having a pair of spaced having a shank of different cross section from the shape of said perforations passed through the perforations ofthe spring portions of each plate, said spring portions normally preventing endwise movement of said shank but the shape of said perforations per.- mitting limited rocking motion thereof.

6. In a device 01" the class described, a pair of plates, a telephone receiver supported by each of said plates, a pair or head bands each pivoted at rnnposite ends to said plates, and means independent of said receivers for limiting the pivotal movements of said bands relative to said plates.

7. In adevice oi the class described, a pair of plates for supporting telephone re ceivers, a pair of head bands each pivoted at oppositeends to sa-idplates, and pin and slot connections between said bands and plates adjacent their pivotal connections.

8. In a device of the class described, a pair of plates for supporting telephone receivers, a. pair of head bands overlapping one side of each of said plates at their ends, a clamping piece positioned on the opposite side of each plate opposite each band, a screw passing through the end of each band, a plate and a clamping piece to furnish a pivotal connection between each band and plate, and a screw passing througheach band a slot in a plate and into one of said clamping pieces to limit the pivotal motion of each band, and to impart an adjustable frictional resistance to such motion.

9. In a device of the class described, means for connecting head bands to the shank of 'a telephone receiver support, which comprises a plate having laterally extending ears to which the ends of the head bands are pivotally attached, and spaced perforated portions between said ears bent toward parallel relation to receive through said perforations the shank oi' said telephone receiver 10'. In a device o f'the class described, means for C01111Q6t111g head bands to the shank-of a telephone receiver support which grip said shank against axial "movement therethtrough;

' ll ln'ia device of :the class described, means? niiectin g head -.hancls to "the 1,583,088 1 a V I I 8;

shank of a telephone receiver support, which Ward parallelism with each other, and each means comprises a plate having laterally exportion being perforated to receive the vtending ears, each ear having aperfor-ation shank of'the receiver support therethrongh. 1

to receive a pivot for a head band and a, slot In testimonyrwher'eof I have afiixecl my for a pm and slot connection to linntthe signature. plvotal movement of sand band, portions of said plate between said ears being bent lo- WVILLIAM J. MURDOC K

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