US2274019A - Switch - Google Patents

Description

Feb. 24, 1942.

G. WEIDER ET AL SWITCH original Filed May 13, 1939 A Home ys In ventura'y Patented Feb. 24, 1942 SWITCH George Weider and Calvin Wilson, Charleston. W. Va., assignors of thirty-three and one-third per cent to Gerald G. Smith, Charleston, W. Va.

Original application May 13, 1939, Serial No.

1940, Serial No. 331,468

1 Claim.

This invention relates to new and useful improvements in switches and is a division of mY co-pending application Serial No. 273,539, filed May 13, 1939, for Electric counters.

An important object of the invention is to provide a switch structure which will be positive acting, sturdy in construction and not susceptible to the ready development of defects.

Other important objects of the invention reside in the provision of a switch structure which will be self resetting, operative in either direction by articles operating the same, ease of demountability for the purpose of repair or replacement of parts, rapidity of operation, and substantial fool-proofness in operation.

Other objects and advantages will be observed by the reader during the course of the following specification.

In the drawing:

Figure 1 represents a top plan view of the switch shown with its finger engaging the controlling article.

Figure 2 is a side elevational view of the switch.

Figure 3 is a cross section on the line 3--3 of Figure 2.

Figure 4 is a cross section on the line 4-4 of Figure l2.

Figure 5 is a perspective exploded view of the finger and mounting means therefor.

Figure 6 is a perspective view of the lower block of the mounting shown in Figure 5.

Referring to the drawing wherein like numerals designate like parts, it can be seen in the drawing that the switch consists of the base I1 from which rise the two brackets I8-I8 and between which are the insulation blocks I8a. The two spring iingers I9.-I9 extend outwardly from between a pair of the blocks I8a, that is, from between one outside block and the intermediate block While the finger extends outwardly from between the outside block and the intermediate block. The bolts 2I--2I extend through the bracket I8 and blocks I8a and through bushings of insulation in the fingers I9 and 20.

One end of the finger I9 has the rearward extending lug 22 while one of the other fingers I9 has a lug 23. The conductor I4 extends to the lug 23, while a connection 24 ground is made from the lug 22. The fingers I9-I9 are bridged as at 25 and with this bridge is engageable the contact 26 carried by the finger 21 normally when the ngers I9 remain unaifected by the feeler arm I6.

The base II is of slate or some other similar material but it is preferable that the blocks 28 and 29 be of brass, Monel metal is used on arm I6, its removable tip 90 and the pivot pin 3|.

Divided and this application April 24,

The feeler arm I6 has one end portion disposed through an opening in the block 29 and is suitably secured thereto, while depending from this block 29 is the pin 3l which seats in the recess 32 of the block 28, the block 28 having a pair of threaded bores 33 therein for receiving screws (not shown) for securing the block 28 to the base I1.

Obviously as each bottle 34 moves against the arm I6, the arm I6 is swung slightly so as to press against the bridge piece 34 at the outer ends of the arms I9 which flexes the arms I9 so as to remove its bridge piece 25 from the contact 26, on the free end of the arm 20 thus controlling whatever indicator or counter mechanism is desired.

Obviously the tip 38 can be of various materials such as felt, leather, Bakelite, brass, copper,

. etc.

It is furthermore to be understood, that this switch can be employed in counting systems for dropping pills or pellets, and as a matter of fact for counting cans, cartons and various other conveyor carried articles.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the claimed as new is:

A switch of the character described comprising a base, a plurality of blocks of insulation mounted upon the base, a spring contact structure projecting outwardly from between a pair of said blocks, a second spring contact structure projecting outwardly from certain other of the blocks, said spring contact structures having opposed and normally engaging contacts, one of said spring contact structures being substantially longer than the other, an operator for the long contact structure, said operator comprising a block mounted on the base and having a recess extending downwardly therein from the top thereof, a second block disposed on the last-mentioned block and having a depending pin disposed in the recess, and an elongated feeler arm having one end portion disposed through the pin carried block and adapted to project well beyond the free end of the long spring contact structurey said feeler arm being adapted to be swung with its block by moving objects and to engage the long spring contact structure to flex the same and break its contacts with the contact of the other spring contact structure.

GEORGE WEIDER. CALVIN WILSON.

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