US2326944A - Tester trainer - Google Patents

Description

Aug. 17, 1943.

D. c. HQLAND ET AL TESTER TRAINER Filed Feb. 10, 1942 2 Sheets-Sheet 1 mm v Aug. 17,1943. D. c. HOLAND ET AL 2,326,944

I TESTER TRAINER File d Feb. 10, 1942 2 Sheets-Sheet 2 1 word (V6 42 flozzala 0 w lzzfzw We claim:

trode rings may be made of circular or oblong or any other shape or size than that shownin the drawings.

Projecting through the-wall 54 of a case 55 housing the clutch 5|, is a lever 56 for. holding disengaged, when desired, the clutch plates 51 and 58 which, mounted respectively on adjacent ends of spindles 50 and 52, are urged into engagementby coilspring 59 surrounding shaft 52.

Extending from, and securedto, an end of case 55 is a case 60' comprising a main section 6| surrounding spindle 50 and 'a terminal sec:

'tion 62 which, enclosing the gear 48, has its walls formed with squared openings to non-rotatablyrec'eive the electrode bar 45slidable there- 7 comprising a simulated electrode member, a rod,

a handle .for supporting said elect-rode, member,

a ring mounted'on said electrode member for movement over said rod to produce a signal when said ring contacts said rod, and means for varying the distance between said ring and said handle. 7

V 4." In apparatus of the character described, the

" combination of a'simulated electrode member supportedby ahandle; a rod-a ring mounted on 7 said electrode member "for, movement over said rod, means ior varyingthe distance between said ring, and saidhandle While. moving said through under the rack and pinion? relationa of such electrode bar and'gear.

In use, the case I0 is'set at any'convnient location, the supporting rods l2 and I5 clamped in adjusted position, and the 'arm l5 swung about pivot so asto extend atitheheight and an l desired;v corresponding toivarious' welding "p0.-

sitions.

In operation the speed of the flexible is preferably adjusted, through use ,of; gears and motor control, so as to cause the,'electroderod 45 to recede at thefsame ratepfmOVementsas' does an electrode in actual welding, andsuch speed may be variedto accountfor varying sizes and kinds of electrodes :used in-actualjwelding oprations.

In operation, likewise, the speedgoi the flexible V shaft 21 is preferably adjusted; through: use of gears and motor controL so as tQcause the red pyramid-26 on endless tape to move at. arate corresponding to. the desired travel in the three-- tiorrof a weld in anactual weldin -operation, and

such movement of the type may, of .Co'u-rse,

varied so as to properly represent-various welding-situations. 7 3 I 7 With the freceding electrode? and endlessjtape set in operation by power transmitted through" flexible shafts from the electric motor synchronized by gears for properspeed, the; electrode ring is passed over the red. at the pace'set bythemey:

- ing; pyramid until, on the scale ldflazrppint is noted where the ring contacts the rod, thereby completing thecircuit and lighting the lamp, such point on the scale thus indicating howl-far the ring passed before contactingthe rod, there by serving as a measure orscore of steadiness of movement in all directions. I;

. The teeth are removed QDear tapered endQ Q to provide a toothless space 46 so that whenthe electrode is wasted that far, the gear will not; continuetodrawitfarthen. y

l. Means for testing and training in xlwelding comprising asimulated electrodemember, a rod, and a ring mounted onsaid electrode member:

for passing oversaidrcd to produce a'signal when said ring contacts saidrcd v- -2.- Means for testing and training in welding .ring over said rod; and an indicator movablc ad- 7 jacent said rod for indicating the desired speed Tofniovlernent of said ring over said .rcd.

" 5." In apparatus of the character described, the

i'r'combination of. a -simulated electrode member, a

rod, ga ring mcun'ted on said electrode member for passing over said rod, and means for iridicatingwhen said ring contactsvsaidrod.

p 6.; In apparatus of theicharacter described, the COmDilJati-OIIEOf" a simulated electrode member, a

'ro d a ring mountedon jsaid GIGCtI'OdQ'IIl-Efflbfil forVrnovement'overlsaid rod, ahandle-for said electrodewmember-andmeansior varying the disthe combination of two relatively movable ole- Inents,-0neo-f said elements comprising arod-like mem er an rt eb he i eleme t avin D m spaced apart greater than .the' diameter of .the other-element; signal-v rneans operated by any-contact' between such two elements, whereby saidother lelementan. .be cived: w th d:

mentioned element and any contact between said 7 first-arid second elements will produce a signal, .9 Means or testing, and training vin welding comprising a simulated electrode ;member,- arod,

V a ringjmounted on s'aid;electrodemember for movement over said rod to produce-a signal when said'ri'ng contactssaid rod, and 1a movable indi cater, adjacent said rod for indicatingthe desired speed of movement of said ringover said roda 10 In apparatus of'the'charact'er described, the. combination of; a simulated electrode memher, a support for said electrode member, a-r od said electrode memberbeing formed withispaced 'portions adapted-to receive said rod ther'ebe tween'to produce a signal when any of said ps1 tions' contactssaid rod, means for varying-the distanceibetween said spaced portions and said 7 7 support, and a movable indicator l for indicating the desired speed of 'movement -oflsaid ringover comprising a simulated electrode member, aged;

a ring mounted on-said electrode member ion movement over said rod to produce asignal when 1 said ring contacts said rodgand anendless tape indicator movable adjacent said rodi f or indicat-p ing the desiredspeedof movementof said'ring over'said rod.

3. Means for testing andtraining inwelding j said rod.

e 11. In apparatusiofi the jcharacterdescribed;

the combination ofa rod, a simulated electrode member termed with-spaced portions adapted to receivethe' rod therebetween, and means" for in? dicatingwhen any of .said spacedportions con 1 tacts said rod.

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