Technical Exhibition, February 1973

The Technical exhibition was arranged during the period 18th to 24th February 1973, and was opened at the hands of Shri Mukundrao Kirloskra on the pleasent evening of 18th February 73.

Following interesting technical models were exhibited :-

Following interesting technical models were exhibited :-

Models in Mechanical Engineering Section :

1) Hot Air Engine : A working model, prepared by Shri Kurne. works on hot air, circulating the same air to keep the engine running

2) Ball-turning attachment for centre lathe : This attachment is useful for turning spherical shapes accurately. This is prepared by Shri Kalaskar, Ghulc, Garude and Pethkar. |

3) Auto wheel aligner : This instrument, designed and fabricated by Shri S. G. Kanitkar and Shri Gajendragadkar is a simple but a precision device to set the camber, caster and toe-in angles of the front wheels of automobiles. This unit is versatile and can be used for any automobile. An arrangement is made to indicate the wheel angles directly on a voltmeter. This instrument is helpful in garages while resetting wheel alignment. Guidance by by Shri A. V. Deshingkar, Lecturer in Mech. Engg.

4) Squash plate engine and elbo engine Both the Engines prepared by Shri Bapat and Rao, are working models and can be demonstrated with compressed air. Squash plate Engine is of four cylinder type. The other model of Elbo-Engine is of six cylinder type and the piston pairs are regidly connected and bent to form Elbow.

5) Vacuum Cleaner A Vacuum Cleaner is designed to collect machined chips and saw dust. It works on compressed air. This vacuum cleaner is cheap in cost, easy to operate and useful in work-shops. The design and fabrication is completed by Shri Bhide and Mhaiskar.

6) Automatic Escalator : The working model of automatic escalator demon-strates satisfactorily, tits function of a moving stair-case. The design and fabrication has been completed by Shri Gholba.

7) Mini- Centrifugal Pump- a working model : The mini-model of centrifugal pump, presented by Shri D. M.Talekar, S. R. Bhide and S. S. Karkare and B. R. Lohar, is prepared out of a transp-arent perspex sheet and is useful to demonstrate the flow of water over the impeller with the aid of a stroboscope beam.

8) Automatic Traffic Control : A cell motor-operated, cam-controlled, • Traffic-signalbox ' is designed and prepa-red by Shri Kulkarni and Shri Mali.

9) Momentum gained by a ball rolling over a cycloidal path is more than a ball rolling over a straight path. This principle is very well demonstrated with a simple model prepared by Shri Lagu.

10) Toy-Railway line with electric loco was prepared by Shri Saraf.

11) Thickness magnifier was prepared by shri S.B.Anand.

12) Toy-Helicopter by A. W. Parulekar.

13) Toy Steamer by Shri Unawane.

14) Race between Rabit and Tortoise is explained through Geneva Mechanism model by Shri N. G. Inamdar

15) A model of whitworth Quick-Return Mechanism prepared by Shri R. R. Kulkarni.

16) Electro-magnetic Clutch - a working model of a single plate clutch is desi-gned and prepared by Shri A. D. Jadhav. P. K. Kutse, H. S. Somnath, and D. B. Talathi.

17) Flame-whirl demonstration model is prepared by shri. Bhandawale and Bapat.

Models in Electrical and Electronics Engineering Secticn
1) Numericel Control of Machine Tools. The Computer circuits designed and assembled by Shri P. L. Salinkar is useful to control the machine tools. An eleven channel tape is used to feed the data for the control of the machine. The working of the model was successfully demonstrated for longitudinal feed of a milling machine. The same unit is also made useful as a calculator without any further modifi-cation.

2) Combination Lock :- An electrical combination lock is assembled with four combination band-switches fitted outside and Four switches inside the door of a vault and inter-connected electrically. The latch of the door can be easily released with solenoide by matching the figure with band-switches fitted on outside of the door. Thus Twenty-one lakhs and Six hundred combinations are possible. The safety alarm is also connected to give buzzer with wrong combinations or mis-use. The circuitary was designed by Shri R. G. Kulkarni.

3)Other models presented by Shri R. G. Kulkarni are as follows:- i) Smoke-density meter ii) Safety alarm in) Automatic switch for street light-ing, and iv) Electronic counter. 3) Electronic fire-alarm : This unit is useful to give warning of fire set in godowns and stores. This model is prepared by Shri A. P. Purohit and S. B. Morche.

4) Light controlled Morse Code Trans-mitter is prepared by Shri S. Y. Mahajan and A. P. Purohit.

5) Puzzle Chronic Game - presented by Shri S. Y. Mahajan and Sulakhe.

6) A Wise Cat A capacity controlled arm is used in this model to show a wise cat keenly watching its food, to avoid theft. This interesting model is prepared by Shri A. R. Joshi.

Models In Structural and Civil Engineering Section :-
I) Models of shell-roofs of different designs were presented by Shri S. D. Awale, A. S. Salunkhe, Ambole. and R. N. Deshpande.

2) Dome - structure : A dome of eight feet diameter and ten feet height was
constructed by Shri Bhandwale and Bapat.

3) Caisson Foundation : Under-water construction can be easily explained with the aid of this model. This model is prepared by V. R. Kolhatkar, P. N. Datar and K. M. Khairmode.

4) A model of hydraulically operated bell is prepared by Shri S. N. Jadhav and V. S. Vasagadckar.

Shri J. H. Kurne, Secretary for Exhibition, Shri A. V. Deshingkar, Lecturer in Mechanical Engineering, and Prof. B. D. Kelkar have taken the responsibility to arrange the Exhibition.

All the Heads of Various Depart-ments have encouraged the students to prepare various models and provided guid-ance, technical help and required material. Prin. Kanitkar had given the valuable guidance in making the Exhibition a successful event of the year .
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