US1734124A

US1734124A - Universal telephone set

Info

Publication number: US1734124A
Application number: US112101A
Authority: US
Inventors: Irving W Green; Alfred H Inglis
Original assignee: American Telephone and Telegraph Co Inc
Current assignee: AT&T Corp
Priority date: 1926-05-27
Filing date: 1926-05-27
Publication date: 1929-11-05
Anticipated expiration: 1946-11-05

Description

NV.5,1929. WGREEN EVAL l,734,r124

UNIVERSAL TELEPHONE SET Filed May 27. 1926 5 Sheets-Sheet l '\|II llllllllu.

ATTORNEY .950% 59 1929 l. w. GREEN ET AL 973424 UNIVERSAL TELEPHONE SET Filed May 27%. 192e s sheets-sheetv 2' ZW'l/ee/M/Wlg By A l ATTORNEY NGV. 5, E929. W, GREEN ET AL 734924' UNIVERSAL TELEPHONE SET Filed May 27. 192e s sheets-sheet a 47 u WML A 50 ,.1 v .ATTORNEX condensers and other units.

Patented Nov. 5, 1929 IRVING W. GREEN, OE ORANFOR AND ALFRED E. 1NGLIS, OF 'UPPER MONTCLAIR,

NEW JERSEY, ASBIGNORB TO AMERICAN TELEPHONE AND TELEGRAPH COMPANY,

` A CORPORATION Ol' NEW YORK UNIVERSAL TELEPHONE snr Application and my sa' This invention relates to telephone sta- .tion sets, and more particularly to housings for sets of this character which are adapted to be used'with a combination of different units to form various telephone set mountin s.

t has been customary Ain connection with telephone sets to use separate bell boxes which contain the usual ringer apparatus2 together with apparatus including induction coils, Furthermore, it has been customary to employ various sets at the stations as may be desired, comprising, for instance, such forms as a semi-portable ty for mounting on the top of a desk or tab e a ermanent mountino secured to either the right or left side o? a desk or table, and a set to be mounted on a wall. These mountings, of course, have to be equipped with either manual or machine switching arrangements, depending upon which system is used in the territory Where the apparatus is to be installed. Each type of the reviously mentioned niountings requires n make-up, andthe form used in one type cannot be used interchangeably with other types. This condition makes it necessary to carry all the ty es enumerated in stock and also requires tlih use of a separate' bell box with any of the types installed.

Accordingly, it is im object of this invention to provide a unitary strcturencomprising a universal mounting with which various t pes of telephone station sets may be interc angeably attached. Another objlect consists in Aproviding the unitary structure with ringer and otherA equipment now included in separate bell boxes. These and othei.obj|ects will be ap arent from t lie following description, when considered in eonnectipn 4with the accompanyin drawings in .which one embodiment of tie invention is illustrated.

Referring to the drawin Figure 1 illustrates a to plan View oft ie interio'i` of the improved evice; Fig. 2 is a perspective view of the exterior 4of such device'; Figs. 3 and 4 are details of machine-switchingapparatus which may be used with the improved arrangement; Figs. 5 and 6 are perspective iiferent instrumentalities in their ieee. semi no. 112,101.

views of casings' in which the machineswitching apparatus indicated in Fi s. 3 and 4 ma be mounted; Fig.` 7 is a side e evatioii of a ook switch and its spring contacts; Fig. 8 is atop lan view of a plate on which the hook switci may be mounted; Fi s. 9

and 10-are top plan views of blank patesA which may be attached respectively to o enings in the sloping side and top Walls o the improved niountin Figs. 11, 12 and 13 are asingswhich may e attached tothe mounting indicated in Fi 2 to support dial switching mechanism; i s.- 14 and 15 are fragmentary .view s of t e cradle shown in perspective in Fig. 16; Fig. 17 isan exploded view of an arm which may be attac ied to the mounting; Fig. 18 is a side elevation partly in section of the-mounting showing 1the cradle arran ement of-Fig. -16 positioned thereon, and igs. 19, 2O and 21 are perspective views showing the universal mountin havin a top desk set, a side desk set an .a wal set, res ectively, associated therewith.

In Fig. 1 o the drawings isl shown the interior of the imlproved unitary structure, which includes t e equipment found in a bell box usually mounted separately from the tele )lione set on a wall or other supporting sur ace. The housing for this equipment in the present instance consists of a hase 5 With a cover (l hinged thereto to be presently referred to. A polarized ringer 7 of any well known ty e is mounted in the approximate center of t e base and is provided with gongs 8. The gongs are mounted in an inclined position on posts 9 which may be attached .to the yoke of the ringer in any suitable manner to provide for the desired inclination of the gongs. A condenserA 10 is mounted on -in the base to secure the terminal strip and condenser thereto. An induction coil 13 is secured to the base on the opposite side of the rin er, for instance, by screws extending througg lugs 14 on the ends of the induction coil and'engaging with threaded openings in the base.

The condenser 10,'strip 11 and coil 13 are provided with terminals to which conductors are attached in practice, and the ringer 7 is likewise connected to conductors so that it.

will beactuated by current impressed on said conductors. `,These electrical connections,

' .threaded and carry screws hinfged portion and the edge thereof, when is` so seated on the base 5 that a tight closure` is provided, so that dust is excluded from the interior. Raised portions 17 are provided on the base to further effect this tight closure, and lugs 18 are associated with the raised portions at one end of the base. These lugs are 19 with which slots provided in the' cover engage so that when the' screws are tightened they securely lock the cover to the base, as more clearly indicated in Fig. 2. The sides of the cover extend .from the flange 16 in a sloping direction to the flat portion on the top of said cover,

and the meeting points of the sides and top' are suitably rounded. i

The flat portion of the cover` 6 has an opening 20 of irregular form cut in its approxi mate center, and on one ofthe sloping sides of said cover a second openingsuch as indicated by the numeral 21 is provided. OnV

the sloping side of the cover adjacent its and ldirectly over the gongs 9 o the ringer, a double row of vent holesare shown in the present instance in the form of louvres 2.2. These serve to permit the gongs to be heard more clearly when the ringer is i, operated.l

The unitary structure shownin Figs. 1 and 2 is adapted to be used as a universal mounting for various types of telephone station sets and for manual or machine-switching service,

.-xfas will be pointed out below, andas indicated v propriate when in Figs. 19, 20 and 21.` While the face 5 of the housing has been referred to as a base, it will be evident that this term is more apthe device is used as in Fig. 19, and, in general, this outerwall 5 may be designated as an outer plane-base of the housing or casing.

In the use of the approved device as atelephone set for manual service to be'positioned on the top of a desk or "table, a standard or pedestal 23, such as shown in Figs. 14, 15, 16 and 19, is attached to the top flat surface of the cover.' This attachment may be made by screws, applied through the three holes 24 from the interior of the cover, which registerl with three threaded openings 24 on the bottom of the standard. The standard 23 may have an integral cradle member 25 formed on its upper portion which extends outwardly on either side thereof. The cradle 25 is. rog vided with four outwardly extending or aring guard arms 26, the extremities of which are preferably turned outwardly, as morel clearly shown in Figs. 16, 18 and 19. A T-shaped plunger comprising a horizontal bar 27 and a spindle 28 is associated with the standard; The bar is seated in a depressed portion of the cradle, is attached to the center'of sai bar, extends downwardly therefrom and is. adapted to move vertically within the tubular standard. A spiral spring 29 encircles the spindle and extends thereon from a plate to the enlarged head 30 of the spindle and controls the vertical movement thereof. When a hand set and the s indle, which comprising a .receiver and transmitter, which has not been illustrated in the present instance for the sake of clearness, but which may be of any well known type, is placed on the T-shaped plunger, its weight causes the depression o the spring 29. The guard arms serve to keep the hand set positioned in the cradle. When the hand set is removed from the cradle, the sprin 29 causes the elevation of the spindle whic provides for the electrical connection of the hand set in a well understood manner.

The lower end of the spindle 28 extends A.

a linger extending therefrom to which a bankv of sprin s 33 is affixed. The'extended end of the spindle` 28 opens-and closes contacts between these springs upon the seating and removal of the hand set from the cradle.

The mounting of the standard 23 upon the top of the cover 6, as just described, is employed when the convertible mounting is to be used for a top desk or table set and when manual service is' available. Under these conditions, the opening A21, as indicated in Fig. 2 of the drawings, will have a blank plate 34 covering it. The blank plate 34, which is illustrated in Fig. 9 is a rectangular form and has a threaded stud at each of its corners on its bottom surface. These studs, as indicated by the reference character 35 register The studs extend through the apertures 35 and engage nuts 36 beneath the apertures and thus secure the plate 34 to-the'cover. The

plate 34 may be provided, if desired, with a card holder 36 aflixed in any suitable position inapertures 35 provided in the front sloping '12g-f surface of the cover 6 about the opening 21.

lined, and the plate 38 (Fig. 11

plate 38 'in the art and need o'n prising the dial an form indicated in Fig. 19 is used. The standard 23 in this case is left in the osition outfis attached to the front sloping surface of the cover 6 in place of the plate 34. This plate has a stud 39 provided on each corner of its bottom surface. The studs 39 are similar to the studs provided on the blank plate 34 and extend through the apertures 35 of the cover and engage nuts beneath said apertures. The has a com aratively lar re oIpening 40l in its center whic is rovxded febr t 1e purpose of permitting t e extension therethrou h o switching equipment of a dial. The 1al and its equi ment are well known il; a brief description to show their application to the resent invention. Fig. 3 shows the rear ace of a dial, and its switching equipment 41 extends through opening 40 into the interior of the vhousing rovided by the base 5 and its cover 6. For t e pur ose of positioning the dial, it is first attac e to the plate 38, indicated in Fig. 11', by means of screws extending through three apertures 42 provided in the plate 38 'into threaded openings 43 in the rear of the 3. When the unit comdial, as shown in Fi late 38 are secured to f each other, the late 1s attached to the cover Aas '6, as previously indicated. The bottom of the unlversal set is preferably provided with flt or the like when used as a top desk set to prevent scratching the surface on which it is positioned.

.When it is desired to use the im roved arrangement as a mounting on the si e of a desk or table for manual service it is fastened thereto by screws extending through the base anden agingthe su porting wall. The blank plate 4 shown in 1g. 10 1s applied over the aperture 20 on the fiat surface of the set. This plate is provided with a stud 45 affixed to each corner of its bottom surface, and may also have a card holder 36 provided on its'center. The studs register with four lopenings 46, shown in Fig. 22 and extend therethrough to engage nuts pos1tioned beneath the openings, and thus serve to attach the blank plate 44 to the top surface of the cover. In case the mountingl is to be positioned at the right side of the desk or table, the flat surface will be turned toward the right with the aperture 21 appearing in the front. A plate 47 (Fig. 8) having a stud 48 on each corner of its bottom surface is placed over this opening with the vstuds 48 registering in and extending through the openings 351of the.cover 6, shown in Fig. 2 and nuts engage the extended portions of the studs beneath the cover and secure the plate 47 thereto. The plate 47 has a slot 49 provided therein through which a hook switch 50 extends. The hook switch 50 (Fig. 7) is journaled in a plate 51, and this plate is secured by means of a bolted lug 52 to the un- .derface of the plate 47. A bank of contact yf springs 53 is secured to the of bolts. These contact and closed by a cam 54- attached to the hook switch 50,.so that when a hand set (not shown) is removed from the hook switch, contact is made between the springs in an obvious manner to close a circuit and the restoration of the hand set to the hook switch opens the spring contacts.

When it is desired to mount the set on the left side of a desk or table, the flat ortion of the cover faces toward the left, an the plate 47 is associated with the front sloping side of the cover. In this instance, however, the plate will be reversed in its attachment to cover the openingI 21.

The positionin of the set on the right and left side of the ta le or desk, just referred to, with the blank plate 44 attached to its fiat surface is employed only when manual service is necessary.

Where machine switching service is employed, the form shown in Fig. 2O will be used. This figure shows the universal set applied to the left side of the desk, but it may be equally well mounted on the opposite or right side of the desk as will be resently described. The hook switch attache to plate 47 will be used in this connection, as just described, for either the right or left side of the desk or table. In machine-switching service, however, the plate blank 44 will be removed from the fiat surface of the cover, and a plate 55 as more clearly shown in 17, will be substituted. The plate 55 is of the same shape as the late 44 and has studs 56 similarly positioned) about the four corners of its bottom surface. The plate 55 has an opening formed in its inner surface which extends upwardly into a tubular sleeve 57. A second tubular sleeve 58 telesco es the sleeve 57, and may be attached thereto y screws or the like. The tubular openings previously referred to are rovided for the con( uctors extending from the interior of the casing to a dial on the end of the arm. The sleeve 58 has a socket 59 attached thereto, and the other end of the socket registers with a casing 60, This casin and its' attached socket and sleeve are s own in perspective in Fig. 6 in connected relation. The rear portion of a machine-switching dial, such as is indicated in Fie. 3 is adapted to be inserted within the casingbO. The dial in thisv connection has a su stantially crescentshaped platef61 attached to its rear surface. The plate 61 through it, and these openings register wit the openings 43 in the rear face of the dial when' the plate and dial are laced together, so that screws may be exten ed through the openings 62 into the openings 43 of the dial to secure these elements to ea'ch other. The plate 61 has lugs 63 disposed about its surace. Each of theselugs is provided with purpose o housing the' has openings 62' extendin openings, and'fwhen the unit comprising the plate 61'and the dial are positioned inthe casing 60, vthe openings in the lugs 63`register -with openings. 64 in the casing, so that screws passing through the registered'openings secure' the dial-to the casing. The machineswitching arrangement just described is equally well adapted to be used with a left side desk mounting or right side desk mounting.; In the latter mounting the plate' 55 is simply' reversed 'from the position shown -in Fig. 2O and applied to the mounting on the right side of the desk. The turning of the tubular sleevewith the dial is readily permitted in an obvious manner.

If it is desired to use the mounting shown in Fig, 2 for a set to be attached to a surface, such as a wall, the combination set forth in connection with the left side desk or table stand mounting will be used in case manual service is desired.

In the case of machine-switching service in connection with a wall mounting, the dial will be attached as shown in Fig. 21. The blank plate 44 will be detached in this instance from the flat ortion of the cover, anda casing 65, such as 1s indicated in Figs. 5, 12 and 13 will be substituted for the removed plate. The casing 65 is provided with a ,platev 66, corres n ing in form to the plate 44 and with t ree inwardly extending lugs having openings 67 therein. The openings 67 register with the three openings 24 provided in the ilat portion of the cover 6, so that screws inserted from' the interior of the said cover pass through the aligned

openings

24 and 67 may engage ruts seated on the lugsl over the latter openings to secure the ,elements together. The plate 66 has a ring-like portion extending upwardly therefrom, the height of one portion of said ring being greater than that of the other, as shown in Figs. 5, 12 and 13. The ring has openings 68 provided about its surface, as may be more clearly seen in Fig. 5. y These openings are adapted to coincide with the openings provided on the lugs 63 of plate 61, (Fig. 4) s0 that when this plate is attached tothe rear portion of a dial, (Fig. 3 the unit provided byl such attachment is aA apted to be seated in t e casing 65, so that when screws are inserted throughI the aligned openings 68 of said casing and the openings provided in the lugs63 of crescent-shaped plate 61, they will serve to securelymount the dial in thecasing 65.

From the above it will be obvious that by means of the present invention a single unit` is provided, which consists of a casing' comprising the base 5 and its cover 6 and the uipment commonly contained in a separatel bell or ringer box. v, This unit is adapted to be used with alvariety of mountings. instance, Fig. 18 indicates a top desk set equipped for use' with manual service. To

' convert this -set so that it may be used with telephone ringer box For.

machine switching service, it is only necessary Asired'in connection with this mounting, the

plate -isremoved and a blank plate'substituted therefor.

If a rightdesk mounting is desired, the unitary casln is converted from the 'position shown in ig. 20, and the plate carrying the dial is applied to the casing in its inverted position to ether with the l late'47 carrying the hook switch. If manual)service is desired in connection with the right side desk mounting, the plate 55 is ren'lovedv and a blank plate such as is indicated in Fig. 10, is substituted therefor.

' In Fig. 21 the casing is equipped with a switch hook and a dial 69 for mounting on a wall for use with machine switching service. If the casing is to be used for manual service, the plate 66 carryin the dial is simply removed and a blank ate 44 substituted t erefor.v The wall set 1s equally well adapted to be mounted, so that the switch hook is positioned at the right of the casin and the dial or blank plate may be attache to the casing at this time. All that is necessary to accomplishthis is that the casing be turned so that the side now appearing on the left be reversedto the right.

A universal casing is thus provided by this invention which is adapted to have a number of interchangeable attachments which may be interchangeably mounted on the casing 1n a number of diierent ways.

. What is claimed is:

1. In a telephone set, acasing, a bell, condenser and induction coil therein, said casing having an extended outer plane face on one side, means to fasten a pedestal on one face of the casing to sup ort a hand set when the casing is mounted with said plane face horizontal and forming the under side-of the casing, and means to fasten supportin means to hang the hand set on another face o? the casing when i is mounted with said face vertical.l

2. In a telephone set, a casing, instrumentalities including all the elements of a desk mounted therein, said casing having an extended outer plane face on one side, means 'to fasten a pedestal on one face of the casing to support a hand set'when the said plane face is'-horizontal and is the under s ide of the casing, and means to fasten supporting means to hang the hand set on another face of 'the casing when-said face-is the casing is'. applied thereto as lll vertical, and switches associated with the -means to fasten the pedestal' and the means to fasten the supporting means.

3. In a telephone system comprising a casing, ringer apparatus, induction coil and condenser witliin said casin means to fasten a pedestal on one face of t e casing when it is mounted in one position and means to mount a hook switch on another face of said casino` when the casin is in another position, said pedestal and said hook switch being adapted -to support a hand set,` and means to fasten a dialing switch 'on said casing in either 1nstance, the dialing switch bein r mounted on the location of the pedestal w ien the hook switch is used, and being mounted on the locationi of the hook switch when the pedestal is use 4. In a telephone set comprising a casin f having one mounting to sup Jort a pcdesta and another mounting for a look switch to sup ort a hand set, a dialing switch provided with) means whereby it may be positioned 1nterchangeably on said easin f in the position of either the pedestal or hoo switch depending on whether one or the other is uset, and ringer apparatus, induction coil and condenser contains within said casing.

5. In a telephone set comprising a casing having openings in two of its sides, a pedestal adapted to be attached to said casing over one of its o enings, a hook switch adapted to be attache to said casing over anot ier of its said openings, said pedestal and said hook switch being each ada ted to support a hand set, a dialing switch a apted to be attached to said casing over either of said openings and used interchangeably in combination with the pedestal and with the hook switch, and apparatus lincluding a ringer, induction lcoil and condenser contained within said casing.

6. In a telephone set comprising a casing ada ted to be mounted in a horizontal or v ertical) position, said casing having a plurality of mounting faces, a pe estal adapted to be mounted on one face of the casing in its horizontal position, a hook switch adapted to be mounted on another faceof said casing in its vertical position, said pedestal and said hook in combination with the switch being adapted to support a hand set and apparatus including a ringer, induction coil and condenser contained within said casing.

7. In a telephone set comprising a casing adapted to be mounted in a plurality of positions, said casing having a plurality of mounting faces, a pedestal adapted to be mounted on one falce of the casing in one of its positions, a hook switch adapted to be mounted on a second face of said casing in another of its positions, a dialing switch adapted to be attached to the casing and alternately used pedestal when that is mounted on the'casing and with the hook switch when that is mounted on `the casing,

hand set,

.and instiumentalities including all the essentials of a desk telephone ringer box mounted in the casin 8. In a telepone set comprising a casing adapted to be mounted in a p urality of positions including a top desk mounting, a right side desk mounting, a left side desk mounting and a wall mounting, a pedestal ada ted to be used with the casing for the top desk mounting, a hook switch adapted to be used interchangeably for the right side desk mounting, left side desk mounting andy wall mounting, said pedestal and hook switch each being adapted to support a hand set, a dialing switci adapted to be fastened to said casing in place of said pedestal or said Y which is used2 and apparatus yincluding av ringer, induction coil and condenser contained within said casing. 9. In a telephone set com adapted to be mounted in a p urality of positions, said casing having a plurality of mounting faces, said positions including a top desk mounting, a right side desk mounting, a left side desk mounting and a wall mounting, a pedestal adapted to be attached to one face of the casing when mountedi on the top of a desk, a hook switch attached to another face of the casing and adapted to be used interchangeably when the casin is mounted on the right side of a desk, left side of desk and on a wall, said pedestal and hook switch being each adapted to supporta hand set, and apparatus including a ringer induction coil and condenser contained within said casing. 10. In a telephone set, a casing, said casing havin a plurality of mounting faces, a ringer, in uction coil and condenser within said casing, said casing being adapted in one osition to rest on a table and serve as a base ior a stand mounted on one face to support a hand set, and in another position to be fastened to a vertical wall and to be rovided with a hook switch mounted on anot er switch for a hand set, blank plates adapted to be fastened to said casing in place of said stand and said rising a casing eis hook switch when one or the other is not i used, and dialing apparatus adapted to be fastened to said casing for use in combination with the stand and with the hook switch.

11. In a telephone set, a casing, said casing having two mounting faces, a ringer, induction 'coil and condenser within said casing, said casing being adapted in one osition to rest on a table and serve as a base or a stand fastened on one mounting face to su port a and in another position to e fastened to a vertical wall and to be provided with a hook switch fastened on another mounting face for su portin the hand set, said stand and said hoo z switcgbeing ada ted for usein manual telephone service, and ialmounting face of said casing in combination with the stand and Withthe hook `switch fastened to theother mounting face of the casing for use in machine switching telephone SelVlCe.

12; The combination of a universal casing with a number of interchangeable telephone units which may be applied thereto for a top desk mountin a right side desk mounting,

a left side des mounting and a wall mounting, and means whereby said units may be interchangeably fastened t`o the casing in a number of diierent desired mounting combinations, said units including a switch hook 15 to support a handset foreach mounting for manual telephone service, and a dial adapted to be attached to said casing and used in combination Vwith said hook switch for ma- Vchine switching telephone service.

In testimony whereof2 we have signed our names to this specification this 26th day of `1smy,1926.

.y l, IRVING W. GREEN.

. ALFRED H. INGLIS.

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