US1054379A - Electric-bell mechanism. - Google Patents

Electric-bell mechanism. Download PDF

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Publication number
US1054379A
US1054379A US69332112A US1912693321A US1054379A US 1054379 A US1054379 A US 1054379A US 69332112 A US69332112 A US 69332112A US 1912693321 A US1912693321 A US 1912693321A US 1054379 A US1054379 A US 1054379A
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Prior art keywords
striker
armature
magnet
construction
pivoted
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Expired - Lifetime
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US69332112A
Inventor
George B Wurster
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W R Ostrander & Co
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W R Ostrander & Co
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Priority to US69332112A priority Critical patent/US1054379A/en
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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K1/00Devices in which sound is produced by striking a resonating body, e.g. bells, chimes, gong
    • G10K1/06Devices in which sound is produced by striking a resonating body, e.g. bells, chimes, gong the resonating devices having the shape of a bell, plate, rod, or tube
    • G10K1/062Devices in which sound is produced by striking a resonating body, e.g. bells, chimes, gong the resonating devices having the shape of a bell, plate, rod, or tube electrically operated
    • G10K1/063Devices in which sound is produced by striking a resonating body, e.g. bells, chimes, gong the resonating devices having the shape of a bell, plate, rod, or tube electrically operated the sounding member being a bell
    • G10K1/064Operating or striking mechanisms therefor

Description

G. B. WURSTR.
ELECTRIC BELL MECHANSM.
APPLIUA'HON Hmm APH. 1012 1,05453'79. Patented Feb. 25, 1913.
the same as thc angular. movement o'lE the GEORGE B. WURSTER, OF NEW YORK, N. Y.
. ASSIGNOR TO YV. R. OSTRANIJRR & COM- ELECTRICJEELL MECHANISM.
Specification of Letters Patent.
Paten ted lfeh. 25, 1913.
Application tiled April 26, 1912, Serial No. 693.321.
To all 'zc/0m it may concer/L le it known that l. Gunner: il. V/Uus'ruu. acitizen ot the United States. and resident oi New York, in the, county ot' iestchcster and State ot' New York. have invented certain new and useful mproren'lents in Electric-liell Mechanism, otl which the followingY is a spel iiication.
lily invention relates particularly to what are comnumly termed single stroke signal or alarnl goings. l
The ohjiect'- is to provide a construction Ywhich will give a powrn'tul stroke and res quire only a minimum consumption of current.
YBriefly ccnsiderrul the invention contemplates the use of an eleetronnagnet, a pivoted armature and a striker pivoted to the arinature so that a small movement ot' the a rmatnre is nmltiplied in the movement ot the striker. To facilitate this movement the striker is in the form of a` lever, the short; end ot which hasI a roller which travelsI on a guide plate. A yielding stop is provided .tor the armature and this I stop may he adjusted to vary the action ot the striker.
Figure l is a front view ol mechanisui embodying the Aimprovements ot my invention showing),r in dotted lines the position ot' the armature and striker in the act ot stri k ing. Fig. 2, is a` side view otl the armature and striker.' Fig. 3, is a side view ot' a modification 'oit the armature and striker. Fig. 4t, is a front view ot the construction of Fig'. 3.
The base or frame l is ot suitable con- .--:truction adapted to he secured to a support in any suitable manner asl is customary in devices of this character. lhe hell or gong 2 is secured to the trame in any suitahlo manner.
The electro-magnets f5 are ot' suitahle isnal construction supported hy the t'rame il. The armature t is pivoted at 5 and is adapt- .0d to be attracted hy the electro-magnet. A. contact screw t3 may. he adjusted to vary the relative initial position ot the armature. .lhe electrical connection .may he made iii any suitl .fle manner as is customary in this art.
Ordinarily the striker is a part oi or formed as a prolongation ol the arl'nature so that the angular movement olE the striker is armature. l't has also heen proposed to pivot the striker independently oi' the armature and connectl it to the armature hy some form. ot link. ',lhis type ot mechanism introduces.
additional friction and lost movement as well as cou'lplications in construction. By my invention the striker 7 is pivoted :it-8 to the upper end ot the armature t and the lower end o't the striker is provided with a roller 5l which hears against the track plate l() on the head ot' the electromagnet. The striker is therefore a lever whose short arm carries the roller 9 and whose long arm carries the hammer 11.
When a magnet is energized the armature 4 is drawn suddenly toward it thus drawing.;I the pivot S to the left. as viewed 'in Fig. 1. This causes the, striker to turn on its pivot S, the roller 9 traveling a very short distance down the track plate l0. This throws the outer end ot the striker and hammer l1 toward the gono". lt is possible in this way hy only a slight movement of the armature l to ohtain a wide swing ofthe striker. This is o'tl particular advantage when it is realized that the operation ot a magnet is most etlicient when the armature is nearest to it; and that it requires an exceedingly powerful magnet` and the consun'iption ot` a large amount ot current to start the armature which is initially located aty a considerable distance 'from its magnet. I also provide a yielding' stop 'l2 tor instance ot' rubber, felt or other yielding material tor the striker as the striker rebounds from the gong. This stop is carried hy an arm t3 which extends through the post 14 and is clamped hy a screw l5. In this way the arm may be adjusted so as to vary the position of the slop and action ot' the striker. ,To prevent the striker from getting out.. 'of place relative to the armature a har 17 ymay he provided as shown in l5`igs. 1 and 2.
Itis preterahle to so locate the magnet, armature, striker and gong,r that when the armature is drawn over against the magnet, the har '17 will act as lstop't'or the lower end o't the striker hut the momentum of the hammer end ot the ,striker will carry the hammer against the gong. The armature and striker are then' substantially in a straight line andact. as" if in. one piece so that; thc hlow will he resonant. 4then the hlow is struck the hammer springs away from the gong slightly even though the magnet continues to be energized and con- .einues to hold the armature against it.
By the construction'thus shown and described vwith the frame 11p-right as shown in Fig. 1 it is unnecessary to' use any spring in connection with the striker or the armature. This vhas a particular advantage in that the springs which are customary to use for the purpose ofretracting the armature and striker necessitate power in the imap;- nets to over-come the springs in the strik-- ing action. By my construction the armature and striker will rebound and-remain retracted Without the use ofsprings. It at any time it should be necessary to install this construction in a position'such that the vparts would not normally remain in their proper lretracted position it is obvious that a ,spring or springs mightbe employed in the manner common inthis art.
" In the form shown in. Figs. l and 2 the end of the armaturev is forked to receive the end of the. striker. ln Figs. 3V and 4C the end-of the striker is forked to receive the end of the armature and two rollers 18 and le' are providedin place of the single roller 9. It willbe obvious that other modiiications may be made Without departing fromthe spirit or scope of my invention.
1. In :in elect-ric bellv mechanism, an elec tromagnet, lan armature, a striker pivotally carried by the armature, a track plate and a roller carried by the strikerand engagingr the tra-ck plate.
2. In an electric bell construction, an electromagnet, a pivoted armature therefor, a striker pivoted intermediate its ends tothe armature, a track plate at the head of the ,are
magnet, the inner end ot the striker engaging said track plate and a stop tor said lstriker.
3. n an electric bell construction', an electro-magnet, an armature therefor, a striker pivoted intermediate its ends to said armament and of the gong `for limitingl the stroke of the striker in advance of the armature;
4. ln an electric bell construct-ion, a inagnet, an armature, a striker pivotcd interina diate its ends to the armature, a stop can ried by one of`said last named tvvoeleinents and engaging the other for checking the striker and an abutment for the inner end of said striker, said striker being adapted to be brought into line with said armature at the striking position.
5. ln an electric bell construction, a magnet, an armature, a striker pivoted intermediate its ends to said armature', an abutment for the inner end of'said'striker between said armature and said magnet and a roller interposed between said abutment and said striker during the entire ringing stroke. t
6r In an electric bell construction, a inagnet, an armature therefor, a striker pivoted intermediate its ends to the armature, an abutment for the inner end of said striker, a post, an adjusting screw for the armature carried'by said post and an adjustable stop for the striker carried by said post.
GEORGE B. Wil/BEER?.
litnesses:
R. S. ALLYN. E. BnAnFom
US69332112A 1912-04-26 1912-04-26 Electric-bell mechanism. Expired - Lifetime US1054379A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522664A (en) * 1949-08-26 1950-09-19 Coleman Maurice Electric bell with momentum action gong striker
US2523970A (en) * 1946-12-17 1950-09-26 John H Sadler Church bell toller
US2892187A (en) * 1952-10-16 1959-06-23 Bell Telephone Labor Inc Sound output control for telephone ringers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523970A (en) * 1946-12-17 1950-09-26 John H Sadler Church bell toller
US2522664A (en) * 1949-08-26 1950-09-19 Coleman Maurice Electric bell with momentum action gong striker
US2892187A (en) * 1952-10-16 1959-06-23 Bell Telephone Labor Inc Sound output control for telephone ringers

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