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Патент USA US3092712

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June 4, 1963
Filed Jan. 29, 1962
FIG. 1
FIG.3 I78
Neil E. Parsons
United States Patent 0
Patented June 4, 1963
ventional spring pileups to the heelpiece (see, for ex
ample, U.S. Patent 2,401,213 to F. E. Wood). Thus, no
additional holes are required in the heelpiece of the
relay to mount the U—shaped bracket of the instant dis
closure. The microswitch assembly 23 (including the
Neil E. Parsons, Addison,’ Ill., assignor to Automatic
Electric Laboratories, Inc., Northlake, Ill., a corpora
tion of Delaware
three microswitches 16, 17 and 18 more clearly shown in
FIG. 5) is mounted in bracket 10 by bolts 19 and 20
though holes 13 and 14 respectively. Bracket 10' has
a ?at body portion which ?ts against heelpiece 22 of
Filed Jan. 29, 1962, Ser. No. 169,314
3 Claims. (Cl. 200—104)
This invention relates to a relay, and more particularly
to a telephone type relay mounting microswitches.
10 relay 24, with two sidewalls extending upwardly from
the front of said body portion. It is noted that holes 13
Heretofore, relays having microswitches mounted there
on were limited to single or double switch mountings.
Each of the microswitches was actuated by a conventional
armature arm. Usually these switches were secured di
rectly to the heelpiece of the relay and were thus rather 15
difficult to adjust.
It is therefore an object of this invention to provide a
in bracket 10 are elongated so as to permit bolt 19‘--and
thus microswitch assembly 2‘3——to pivot about bolt 20.
When assembly 23‘ is pivoted to the desired position, bolts
19 and 20 are tightened and assembly 231 is held sta
tionary with respect to bracket 10».
Three ?ngered member 11 in FIG. 3 is welded to the
arms of double arm armature 12 as shown in FIG. 4.
microswitch relay having an improved mounting arrange
This armature 12 is mounted in a conventional manner
ment which facilitates rapid adjustment of the micro
20 to relay 24 with ?nger 16B, 17B and 18B of member 11
extending rearwardly to a point beneath the actuating
It is another object of the invention to provide an
plunger 16A, 17A and 18A of microswitches 16, 17,
arrangement whereby, in spite of the existing space limita
tions, more than two microswitches may be mounted on
a telephone type relay, with facilities for independently
adjusting the operation of each microswitch.
It is a feature of this invention to provide an actuating
and 18 respectively as shown in FIGS. 1 and 5. It is
noted in FIG. 3 that center ?nger 17B of member 11 is
25 wider than outer ?ngers 16B and 18B, thus this center
?nger is more rigid than the outer ?ngers.
The aforementioned construction facilitates adjustment
of the three micro-switches in only two steps. First, the
microswitch assembly 23‘ is adjusted as a unit within
Brie?y, the embodiment of the invention described here
bracket 10 until rigid center ?nger 17B properly operates
in relates to a relay having a microswitch unit compris
center microswitch 17. Bolts 19 and 201 are tightened
ing three microswitches mounted side by side Within a
and unit 23‘ is held stationary.
U-shaped bracket. A three ?ngered member is welded
The second step is to adjust the outer ?ngers 16B and
to the arms of the double arm armature of the relay and
18B (by bending them) so as to properly operate the
extends to a point beneath the respective microswitch.
The center ?nger of this three ?ngered member is rela 35 outer switches 16 and 18 respectively. The relay is now
in adjustment.
tively rigid and the microswitch unit is adjusted in the
It should be noted that the arrangement described
U-shaped bracket until the center switch can be operated
above permits the mounting of three micro-switches on a
by this center ?nger. The two outer ?ngers are less rigid
single relay and thereby permits, for example, the switch
and are then bent into adjustment so that they operate
40 ing of three di?erent power circuits by the relay. Yet
the outer microswitches.
the overall dimensions of the assembly are not greater
The invention will be more fully understood from the
than those of a conventional relay having conventional
following detailed description of an embodiment thereof.
member secured to the arms of the double arm armature
of a relay to individually actuate each microswitch.
In the accompanying drawings:
FIG. 1 is a side view of a relay showing the armature
and the bracket which mounts the microswitches. The
armature is in its unactuated position.
FIG. 2 is a perspective view of the U-shaped mount
ing bracket showing the elongated holes which make it
possible to adjust the microswitch unit within the bracket.
FIG. 3 is a top view of the three ?ngered armature
spring pileups. Furthermore, in spite of the reduction
in size of the assembly, provision is made for independent
adjustment of each microswitch.
It will be further understood that the present inven—
tion makes it possible to readily convert or adapt a con
ventional telephone type relay to multi-microswitch op
While I have described the above principles of my
invention in connection with a speci?c embodiment, it is
to be clearly understood that this description is made
only by way of example and not as a limitation to the
FIG. 4 is a perspective view of the armature with the
scope and spirit of my invention as hereinafter claimed.
three ?ngered member welded in position.
What is claimed is:
FIG. 5 is a cross-section taken along line 5-5‘ of FIG. 55
extension member which is secured to the armature so
as to facilitate independent actuation of each microswitch.
1 showing the relative position of the operating plungers
of the microswitches and the ?ngers of the three ?ngered
member when the armature is in its unactuated posi
1. A telephone type relay including the usual heel
piece, electromagnet and armature, a bracket rigidly se~
cured to said heelpiece, a plurality of microswitches mount
ed in said bracket in parallel relation to each other, a
Referring now to the drawings, bracket 10 is held to 60 pair of bolts securing said microswitches in said bracket,
one of said bolts passing through a single hole in the
heelpiece 22 of relay 24 by bolts 21 through holes 15 as
sides of said bracket, the other bolt passing through
shown in FIGS. 1 and 2.. Holes 15 of bracket 101 are
arcuate slots in each side of said bracket, said micro
spaced in a pattern corresponding to the holes which
switches adjustable as a unit, relative to the armature,
are drilled in the helpiece of the relay for attaching con
?rst bolt as a pivot point, a plurality of ?ngers on said
shaped holes, said microswitches adjustable relative to
said armature by loosening said other bolt and moving
armature, one for operating each of said microswitches,
it around in said are shaped holes to thereby move all
by moving said other bolt in its arcuate slots around said
certain of said ?ngers independently adjustable relative
to the associated microswitches.
2. A telephone type relay such as claimed in claim 1,
in which said ?ngers comprise a central, relatively rigid
?nger, and a pair of relatively ?exible ?ngers, mounted
of said microswitches as a unit toward and away from said
armature, a series of ?ngers mounted on said armature
one for operating each microswitch, the center one of
said ?ngers being relatively rigid and the outer two of said
?ngers being relatively ?exible and therefore adjustable
as a unit on said armature, said microswitches adjustable
relative to their respective microswitches.
as a unit relative to said central ?nger by means of 10
References Cited in the ?le of this patent
said other bolt, and said ?exible ?ngers adjustable rela
tive their respective microswitches by bending said ?exi
ble ?ngers.
3. A telephone type relay having the usual heelpiece,
armature, and electromagnet, comprising a bracket hav 15
ing a ?at portion secured to said heelpiece and having a
pair of ?anges extending upward from said ?at portion,
a single hole and an are shaped hole in each ?ange, a
plurality of microswitches removabily secured between
said ?anges by means of a bolt passing through said 20
single holes and another bolt passing through said are
McMaster et a1. ______ __ Aug. 6,
Jorgensen ____________ __ Mar. 11,
Kock ______________ __ Sept. 23,
Leo ________________ __ Sept. 15,
McDiarmid __________ __ Nov. 10,
Hale ___'_ ____________ __ June 21,
Germany ____________ __ Mar. 16, 1961
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