US911866A - Desk-telephone. - Google Patents

Description

E. R. GO'RWIN & G. A. BALS. DESK TELEPHONE. APPLICATION FILED MAR. 28, 190B.

91 1,866. Patented Feb. 9, 1909.

struction of the 'ieexrisnr enrich.

TELEPHQNE MANUFACTURING GOMPZA'NY,

ILLEN 015,.

on *cnroaco, ILLINOIS, AOORPORATION on DE Sitilltlililftmsfil No. senses.

fipeoifl'eation of Letters Patent.

Patented Feb 9, lens.

hpphoetion flledfiiarch 28; 1308. fierial no. 23,8Bt5'.

To all whom it may concern: Be it known thatwe, Ethan and CHARLES A..BALS, both citizens of the United States of America, and residents of. Chicago, Cook county, Illinois, have invented a new and useful Desk-Telephone, of. which the following is a specification, refer ence being had to the accompanying drawe inh's, illustrating same.

Our invention relates to telephones, and more particularly to that class oi telephones known as desk telephones.

The principal objects of our invention are to provide improved means for controlling switch contacts by the operation of the telephone receiver hook; to provideimproved means foroperatingg thev telephone receiverhook; to provide. improvedmeans for read ily disassembling, such a. telephone; to provide animproved spherical inge joint for supporting the transmitter andpermitting an adjustment of same to-provide improved means for carrying-the transmitterconduc tors to connection terminals in the base of the telephone; to provide an improved conase portion of the telephone; and to provide other-improved details. oi construction which will be. hereinafter described.

Other. objects will I be apparent from the. following specification.

In the drawings Figure 1 is a side elevation of the complete telephone of the pres-- ent invention ,l ig. 2 is a front view or the telephone shown in Fig. 1, with portions shown in vertical cross-section to s row the interior construction of the telephone; Fig.

3 is a bottom view of the circular base plate which carries various portions of the apparatus, mounted thereto as shown; Fig. 4 1s a vertical cross-sectional view of the vertical standard .oi the ,tele hone, with portions shownin elevation, ta on in the osition shown in Fig. 1, showing the gui ing ar rangement for the switch-contact controlling rod; Fig. 5 is a too view of the vertical standard of the telephone, with the transmitter mounting cap removed, showing the mounting. of the receiver hook within the vertical standard; Fig. 6 is. an elevation of. a portion offthe switch-contact controlling, rod, showinggthe screw adjustment tor-the. operating, spring- Figs. 7 and Bare. detail views of. the

spring. catches. used for. holding thetwo circular base plates of thetelephone'in place;

It. CORWIN standard 2, and the telep Fig. 9 is a vertical cross-sectional view of the sphericalhinge jointrfor the=transmitter, taken. on hne X Xof Fig.1; and Fig. 10 is a side elevation ofthe middle portion of the hinge joint shown in Fig; 9, taken the same as-in 1. f

Like c aracters refer to like'par'ts in the severalifigures, I i The telephone com rises the circular base portion 1, the vertic standard 2, the trans mitter 3 carried. by the 11 per portion of the hone receiver hook 4 pivoted within the vertical "standard 2 as shown lIl-Flg. 5. The transmitter 3. is suported by the sphericalhinge joint shown in .ig. 9, which oint is carried by acap 4'1 which fits over. the upper endof the standard 2 and is. secured thereto by a screw. v e cap 41 is slotted-as at 42300: receive th'e re ceiver. hook 4. The binge-joint ismadeot'an external portion 43 which is slotted as at 44,- and an internal portion 45,. located within the slot 44.. A bolt 46 extends through the ears 43 4:3 and through a hub 47 in the por tion 45, being threadedinto one of the ears 43] Ace nut 48 is screwed-onto the end of bolt 4.6, tting Withima recess in the last mentioned car .43, to lodln the bolt 46 in place. This construction provides'a smooth surface spherical hinge joint which. does away wit the-usual-outwardly projecting thumb screws or. nuts. The part is movable between-the ears 43 4.3 to permit the position of the transmitter to be adjusted, but the fit between the art/5.43 43 and 45 is sufficiently tight to hoh the transmitter in whatever position it may be placed. The conductors leading from the. transmitter 3 extend through a hole 49 in the portion 45, through the annular cavity 50 in the portion 45, on either side of the hub 47, and through a hole 51 in the portion 43, into the vertical standard 2. The bottom part of the portion 45 isout off as at 53, to permit the portion T45 to be turned between the cars 43 43 without cutting;- oi the passage leading; from the hole 51 to the cavity 50, and to provide stops to limit the movement of the transmitter. The vertical standard 2 is preferably made of metal tubing, the upper end bein slot-ted. as. atv tov receive. theieceirer hoo 4}, and, the. lowerrendlbein .tumed'down to form 'ashoulder 6 Whichrs bulkier forms-.2. bearingv for the sheet-metalbase-portion 1, as shown inFig. 2.

Q 93.1,St16

The base portion of the telephone is made I of two cup-shaped sheet-metal portions 1 and 7, the portion 7 being placed within the portion 1 and the lower end of the standard 2 being turned over against the portion 7 so as to draw the portion 7 into the portion 1 and thereby form a substantial construction in the base portion and a substantial and rigid mounting for the standard 2. A strip or ring of leather 8 is placed between the lower edge portions of the sheet-metal portions 1 and 7, to form a suitable cushion for the telephone to rest upon, the leather strip 8 being firmly clamped in place between the portions 1 and 7 by the lower end of the standard 2 being turned over against the portion 7 which draws the portions 1 and 7 together and thereby clamps the leather strip 8 in place as shown in Fig. 2. Within the base portion 7 are placed two circular sheet-metal disks 9 and 10 which are automatically held in place within the base por tion 7 by spring catches 11 and 12. The plate 9 is for carrying the apparatus shown in Fig. 3 and the plate 10 is for closing the open end of the cup-shaped portion 7 so as to form an inclosure for tie apparatus shown in Fig. 3. 'l he plate 9 is provided with two diametrically opposite notches 13 and 14 therein, for allowing it to beinserted in lace within the base portion of the telep 10116. lhe plate 9 is inserted in place by placing the notch 13 over the tongue portion 15 of spring 11, which serves as a guide for plate 9, so that the plate at the sides of the notch 13 rests upon the shoulders 16 16 of spring 11, and then depressing the plate 9 so that the free end of spring 12 passes through-"the notch 14 and springs toward the center of plate 9 so as tdcateh against the latter at the inner portion of the notch 14.

I In order to remove the plate 9 from the telephone it is only necessary to press the free end of spring 12 away from the center of the plate whereupon the plate 9 can be readily pulled out of the base portion, the notch 14 straddling the tongue portion 12 and the ton 'ue ortion 15 and shoulders 16 16 readily releasing the plate at the notch 13. The circular plate 10 is also provided with two diametrically oppositenotches therein so th at when it is inserted within the base portion of the telephone one of the notches therein straddles the tongue portion 17 of spring 12, the plate-at the sides of this notch resting against the shoulders 18 18, and the plate at the rear of this notch catching under the end of tongue 17 and the other notch therein straddles the tongue portion 19 of spring 11, the plate at the sides, of this latter notchresting against the leaf scring 22 which in turn rests against the shou ders 20 20 of spring 11 when the plate is fully inserted, tl e tongue 19 lein forced out or away from the center 0 the plate 111st the beveled tongue 21 on the plate, and than catching against the outer side of the plate 10 when the tongue portion 21 is depressed far enough to permit the spring 11 to spring back to the position shown in ig. 2. The leaf s ring 22 is secured to the inner side of the p ate 10 and is notched at its free end so as to straddle the tongue portion 19 of spring 11 when the plate 10 is placed within the base portion of the telephone as shownv in l ig. 2.

In order to remove plate 10 from the base of the telephone it is only necessary to push the tongue portion 19 of spring 1.1 away from the center of the plate until it disengages the plate, whereupon the leaf spring 22 forces the plate 10 out of the base of the telephone so that it can b readily removed therel rom.

it will. readily be seen that the springs 11 and 12 provide automatic catches for the plates 5 and 10 for securely holding the said plates in position within the base portion of the telephone, and that the said springs 11 and 12 also permit of readily removing the plates Stand 10 from the said base portion.

The liase late 9 carries an induction coil 23, a strip 0 insulation 24 which is provided with a number of screw-contact connection terminals 40 4-0, a group of spring contact nicmliers 2'5, and a spring contact member 26, all of which are suitallymounted. to the underneath side of the plate 9. One of the springs of the group 25 is formed with a thimble 27 on its free end, through which thiinblc bent portion. 28 oi the vertical rod 29 extends, the said portion 28 being suitahly insulated from the thilnble 27 and permitted to turn therein. The rod 2) extends up through a hole in the plate .1 and through the hollow standard 2 to than ceiver hook i, the upper end of the rod 2.) resting in an indenture 30 in the underneath side of the receiver hook -l. A long coil sprin 31 is placed over the rod 29 as shown in 1 lg. 2, the lower end of the spring 31 hearing against plate 9 and the upper end of spring 31 hearing against a nut 32 on the rod 29, the said spring 31 being for the purpose of operating the receiver hool: 4 and tor controlling the group of spring contacts 25. The nut 32 is a screw adjustment on the rod 29 whereby the compression of the spring 31 may be adjusted asjdcsired. On the lower portion of the rod 29, lteneath the plate 9, is provided a shoulder 33 for limiting the upward movement of the rod 29.

'When the receiver is huin upon the hook 4 the boot: is depressed thereby to the full-line position shown in Fig. 2, thereby depressin the rod 2& and the thirnble 27 associated therewith aginst the action of spring 31, and thus controlling the roup of an itch contacts as desired. 51611 the receiver is removed. from the hook 4, the coil spring erases 31 forcesthe hook 4 to the dotted line position shown in Fig. 2, through theagency'of the rod 29 "and thereby ra1sestiie 'thimble; 27 so as tocon'tro'l'the group-oi switch con=' tacts as desired Thus it willbe seen'that by depressing'the hook 4; and releasing same the switch contacts in the base portion ofthe tele hone are controlled, throughjthe agency of t e-rod 29 and the spring 3], associated therewith. This feature permits the telephone to be readily disassembled, because when the base plate 9 is removed as hereinb'efore dcsoribed, all of the apparatus, including the grou of switch contacts 25, which is associated'with the plate 9 is also entirelyremoved from the casing of the telephone.

This enables repairs to be'readilymade, the

parts to be readily adjusted and the circuit wiring to be readily connected to, the various parts of the apparatusr The group of switch contacts or springs 25, andthe spring 26, and also .the induction coil 23, are all preferably wired to the screw binding posts carried by the strip 24, to which binding posts the several conductors of a cord 34, which extends through a hole in the side of the base shown in Figs. 2 and 4; with a pair of ears 37 37 alon the middle thereof which bear against the inner surface of the tubular standard 2, and with a pair of projections 38 38 at its lower end which fit inslot'sin the lower end of the standard 2 as shown in Fig. 4, all of which securelyhol'd the metal strip 35 in place and keep same from turning within the standard 2. The slots in the lower end of the standard 2 serve toguidethe strip 35 \vhen the latter is being inserted into the standard 2-from the bottom of the telephone, i

so that the ears 36 36 will properly fit in place. When it is desired -to., remove th strip 35 from the standard 2, it is only necessary to ress the cars 36 36 inwardly and then pull the strip 35 from the lower end of the standard 2, providing the lates 10 and 9 have first been removed from t e telephone. ()n the lower end of thestrip 35 is mounted a pair of contact members 39 39 which ex tend through respective holes in the plate 9 and engage spring 26 and the u per spring of the group 25, respectively, as s own in higs.

2 and 3. The circuit conductors leading from the transmitter 3 extend down through the tubular standard 2 and are connected to the respective connection treminals 39 'mitter' conductors.

This construction permits; the plate 9 with its apparatus to be entirei-jf removed from the base oi the telephone. without necessitatmg'unsolde'ring or disconnecting the trans The transmitter con ductors are preferably long enough to allow the strip 35 to be partially removed from thestandard 2 without unsolderi'ng them from; theterminals 39 39. The a'dvantages of such disassembling oi the telephone will be readily appreciated by those familiar with the art.

' The internal wireso'f the telephone are preferably connected to the binning posts 40- i 40 of strip" 24, by solder, while the external conductors contained within the cord 34 are connected to the said binding posts 40 40 by the set-screw connections. a

We do not -W1Sl1t0 limit this invention toall of the particular details of construction herein shown, as many modifications may be made thereinwith'out departing from the scope of the appended claims.

What we claim as our invention is:

' 1. A telephoneof the character described,

comprising a base portion and a vertical standard extending therefrom, a telephonereceiver hook carried by the said standard, a

plate closing the lower end. of the base-por tion to form an inclosure thereln, a secondplate carried within the said inclo'su-re and aving apparatus mounted? thereon, mechanism mechanically connecting the said receiver hook with the said apparatus, and a pair of spring catches adapted toautomatically clamp both of the said plates in place and to permit of the 'removalof same when.

desired, each plate being heldby both of the spring catches.

2-. A telephone'of the character described, comprising a base portion and a vertical standard extending therefrom, a telephone receiver hook carried by the said standard, a

plate located withinthe base ortion, switchv contact members carried by t c said plate, a spring-controlled rod extending through the 'said standard from oneof the said switch contact members to the receiver hook, and a formed metal standard to guide the spring-controlled rod into proper connection with the receiver hook.

I 3. A telephone of the character described, comprising a base portion and a vertical standard extending therefrom, a telephone transmitter carried by the said standard, a

telephone receiver hook carried by the said standard, a plate placed within'the base portion, switch contact members carried by the said'plate, a spring-controlled rod connecting one of the said spring contact members with thereceiverhook -whereby the operation of one causes the operation of the. other, a

plate carried Within the said formed metal plate inserted within the said standard for guiding the said-rod into proper connection with, the receiver hook, and a pair of contact members carried by the said formed metal plate for receiving the transmitter conductors, the said pair of contact members separably engaging a pair of the =glate from the said base portion without 1 said cu -shaped portions, substantially as de- 3 isconnecting the transmitter conductors.

4. A telephone of the character described,

comprising a base portion and a vertical l standard extending therefrom, a telephone 5 receiver hook carried by the said standard, a plate located within the base contact members earriedby t e said late, a rod mechanically connecting one oft e said switch contact members with the receiver hook whereby the operation of one causes the operation of the other, a coil spring encircling the said rod and acting on same, and

a nut carried by the said rod and adjustable near one on of t e tube adapted to engage one of the said cup-shaped portions, and the latter end of the said tube being turned over a ainst the other said cup-shaped portion w ereby the cup-sha ed portions are drawn to other and the said strip of pliable materia is clamped between the open ends of the scribe 6. In a telephone of the character described, a base portion, a vertical standard extending from the base portion, a transmitter, and a hinge joint connecting the transmitter with the standard, the said joint portion, switch comprising a pair of ears and a central portion movably located between the ears, a bolt extending through the said ears and the central-portion and screwed into one of the in one of the said ears, to lock the said bolt in place, all formed and assembled to rovidc a smooth spherical surface for the sair joint.

v 7. A telephone of the character described, Q comprising a base portion and a vertical standard extending therefrom, a telephone receiver hook carried by the said standard, a plate located within the base portion, s ring catches holding the said plate in place w ieremembers carried by the said plate, a springcontrolled rod extending throu h the said standard from one of the said switch contact members and removably enga ing the receiver hook, and means for guiding the said spring-controlled rod into engagement with t e receiver hook.

8. A telephone of the character described, comprising a base portion and a vertical standard extending therefrom, a telephone receiver hook carried by the said standard, a plate located within the base portion, 5 )ring catches holdin the said plate in place w 1creby it is readiy removable, switch contact members carried by the said plate, and a spring-controlled rod extending through the said standard from one of the said switch contact members and removably engaging the receiver hook.

, As inventors of theforegoing we hereunto subscribe our names in the prescnceof two subscribing witnesses, this 25th day of March,

ELMER R. CORWIN. CHARLES A. BALS.

Witnesses HARRY B. DAVIS, FRANK J. RYAN.

said. ears, and a cap nut on the said bolt with-- by it is readily removable, switch contact-

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