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8 THE SUNDAY STAR, WASHINGTON, D. C EXPERTS STUDYING Interest in Autos Grows as Factory ALTO HEADLIGHTS ivesin e Joint Research Committee Seeks Solution of Driv- ers’ Problems. Bolution of the omnipresent lem of satisfactory motor veh headlighting will be undertaken by a C t the Soclety and the 1 clety. A course ing of mittee ¢ This plied wu L recent meet roup’s subcom ttee will be ed as a re the Society of Automo Tlluminating nd will make : ety of ‘the subject in the | developments December. Soce research 1g held dlamp r tate motor In Decem motive Eng mittee on b ing with car turers and cle departm the vehicle Increase | driving spec ng from roads, chang in car that have lowered the height of the drivers’ eves above the road surface, and competitive increase in the il luminating power of h -ombined to make unsat rule dopted some headlamps should be so adjusted th the concentrated beams of should not rise more than 42 inc of Auto subcom meet ufac- vehi subject density, above the level of the road at a dis- tance of 200 feet ahead of the car. The problem is to provide adequate distance ahead of the car without throwing a s ap- | illumination at a sufficlent dazzling glare into the eyes of proaching drivers or projecti bright a spot of light immedia front of the car that the road farther prob- bred by zineers this oritles to discuss | | higher | better construction | adlamps have wctory the vears ago that the lizht res When the public is t intensely interested in the new cars the fac torfes are at their lowest production point Automobile y the United S roduction figures from s Department of Com- mer. show that January and August are the low points for pro duction, September being a cl second August if ngw Summer models late in being announced These the iths of the year when mc ading car cata- logues and buzzing around the sales- rooms. One of the popular national pastimes for the month of January is visiting automobile shows. | DANGER IS AVOIDED. | The old rule to are re n about wrding the k when nking a cold engine oes not appiy to semi-uutomatic vance type of ignition control. Even 1 | though the spark lever is set in what seems to be the fully advanced po- | sition on some of the newer cars, the rk does not fully advance until the ne is running fast. -| Obviously the engine - [ fast when ju rting. -1 A backfire from pre-ignition thus is - | avoid. itomatically cannot | ahead and the sides of the road will be_in comparative darkne: In view of existing conditions, the tendency toward the enactment of State regulations that require or per . | mit very high candlepower and her complicated contr ams seems to be inadvisy Scientific men in Government universities and technical have been concent the problem of v that may prove to be directly appl ble to the head- lighting problem, and efforts are to be made to secure the co-operation of such men with the car and lamp man ufacturers. It will also be necessa for car owners to be instructed in th rudiments of illumination and the functions of headlamps in language that the layman can understand. run | lab- | -ating upon | No. 133: High Speed Motors. As is stom, Smith had been taking « periodic stroll along auto- mobile row. He believes in knowing what's going on in motordom if only as a means of being prepared when he planning to buy a new car. This , hewever, led him to a new puz- What's wrong with high speed mo- 2" he asked when we met at the {garags. “I've had half a dozen sales- | men stress the point that their prod- not carry this type engine.” all high speed motors,” I Speed is the basis of power internal combustion gasoline ‘hat these chaps mean is | the excessi peed engine, but | even there the word ‘speed’ is confus Speed’ is relative with regard to \gine design as it is with driving.” | I explained that an_engine, poorly | designed and cheaply built, might go |to pieces more quickly driven at an |average speed of 1,500 revolutions per minute than would a better engine driven at an average speed of 2,000 revolutions, Then why don't they solve the problem once and for all by making | the best engines of the slower speed type?” Smith suggested. in the | engine. Higher Speeds Mean Power. That would be the answer were it | not for the peculiarities of the internal | combustion” engine. The higher its speed, for a given engine size, the { more brilliant its performance. Its | flexibility increases with speed. Its | resultant power—the power recorded in performance—i s with engine speed. The hig engine speed | the more willing the engine will be to | perform while the car is running slow- ly in high gear. An engine with “tub” cylinders will deliver performance when it reaches L certiin speed, but it is slow on the | pickup and, while it may not stall at |low speed in high gear it will vibrate in a way that is both annoying and fatal to the mechanism. ey JANUARY 17, 1926—PART 3. John Smith and His Car BY FREDERICK C. RUSSELL John Smith is a character whom every motorist should welcome. He not selfish; rather he is a motoring marty) have exploited, in an interesting way, his experiences for the benefit of the other 20,000,000 or more members of the motor clan. a chap willing and glad to vibration from strain, and should not be confused with any other form of vibration which develops in engines of any speed when they are not properly balanced Since modern drivers desire flexibil- ity, pickup, low speed performance in high gear and resultant power the trend has been toward a higher speed motor. I showed Smith a list of engine spect. fications of popular makes of cars and from this he could see that it is no longer unusual to find engines attain- ing their maximum horsepower 3,000 revolutions per minute or over “In considering the matter of horse. power,” 1 suggested, “it {s important learn at what engine speed power ches & maximum. It is all very well to be told that an engine de-| velops 70 horsepower, but it may be a different story when you know at what speed of the engine this occurs Engines have horsepower and speed peaks. Over a certain engine speed, horsepower starts to decrease again. Brings Wear on Car. “If you take a cheap car and find that It doesn’t deliver 60 horsepower until it attains a speed of 3,300 revo. lutions you can make up your mind you have an example of the excessive Iy high speed motor. If you want only two-thirds of the engine’s maxi mum power it is obvious that the en gine must still be rotating at a rela tively high speed. It may be rotat ing normally at a rate at which dther engines develop 60 horsepower or over. This means that the cogine will be wearing itself out prema turely.” Smith, at this point, suggested that if he had an engine of this type he belteved he could spare excessive wear by not driving so fast. “I meant to tell you that the speed of the engine is not so directly related to_the speed of the car,” I replied “Engine speed Is regulated in_twg ways: by design and by gearing. Some engines run faster than others be- This is a cause of thelr type, size and construc- tion. there are ov the crankshaft to keep taster. The that encourages higher speed speed of the comes from axle gear res must turn ov one revolution whtle Giners three to one. Slow Driving No Help. our plan for driving slower, there- fore, doesn’t help matters. gine may be even if the ca The engine may very high speed to help you over tne hills in high gear. “Bear in mind, however, that there is nothing ba excessively hi designed for There is one velops 88 horsepower at 3 tions per minute. an hour. which is 90 miles 4.5 A site lin 2,100 revolutio 3.50. Both gre ) car, As T told Smith, th for the man best in cars i mise. Next week: (€ Other Fellow Dangerous. It 1s an old You can see this in the differ- ence between a slow one-c engine and a , develops 103 linder work straight-elght where erlapping impulses on it spinning lighter, and | Most difference, however, tions in the rear duction. Some engines er five times to every of the rear wheels, turn but a little over parts are Your en- dynamo aveling so fast have to run at running like risn't t expres ough asically wrong with an gh speed engine if it is the increased wear. American car that de- 0 revolu > This car will travel | Mot The gear ratio s | and 1 not unus Another | built on directly oppo- horsepower at ons with a gear ratio of | > expensive machines.” | vest proposition | Repr ment in reducing | had emp! 18 points of sim out that the who_cannot afford the | s to look for a compro- Bearing on Bumpers. opyright. 1926.) i s servic stucles stations, to the del | | C. Turner | | story in motordom that the real problem in safety lies in look- ing out for t the fool things he does. setting the stc abreast of a equipped Its skid ma stde of your distance befor Have Your Carburetor | Adjusted for the Cold Months | Official S CREEL BROS. 1815 14th St. when he, other fellow and for In its Winter | ory bids you not to drive car that is not chain the streets ad mean a plunge into the r. Better keep your e you find it's too late. ing for all - FLINT & GARDNER n SERVICE A SPECIALTY T.J. CAMFIELD tromberg Service | 17th and Potomac 473 | AUTO REPAIR COSTS ST CUT Now FORECAST Tell Police Driver Has Been Travel- More Efficient Service Will Bring | ,ne 1,ue Lower Prices, Transport Con- gress Hears. jent service st »s to the Frank Lanchester of the Society of Manufacturers and Winn, Motor Agents As.| ion, both of th pressed the view | ized the diversity in selling problems in different countr] Amer! | merchandising methods are not ed to the British buyer, who be interested slowly, attention is secured. The high price of oil and the lack| of good roads, as well as insufficient motor ate from Australia. | AUTO REPAIRING Expert service and repair- were going. But what can you do 1f the breaks screech? It is a dead give- away. NOISY BRAKES TATTLE. man who can stop his quickly and quietly gives the impres- sion that he wasn’t going in excess of the town limit. Screeching brakes are an unfair telitale. Grease Prevents Rust. car is to be stored for the ing Along Rapidly. Screeching brakes are nev they than a mere stance, when you r plea are sometimes worse ance as, for are caught speed- | ing through a =mall town at 30 miles| If a lan hour.” Your idea is to stop as Winter not is more import auickly as possible and as quietly, as fthan to cover all exposed metal paris a means of making the constable | with a film of grease This will pre- think he over-estimated the speed you vent the formation of rust tions with | imer. were | Second World | , conchuding the in New York recently. Delegates from | Great Britain and Australia likewise | ed the view t rganization of ield lower prices to the buyer as well | r returns to the merchant. sentatives pointed out the value of modern equip- at a more thor pair work will | of parts makers vice station costs. TAKE YOUR TIME « The purchase of an automobile, new or used, is an important business proposition—and should be treated as such. Hasty de- cisions often beget bad bargains. ‘When you deal with us you are requested to take your time—in examining our stock, in making up your mind, and, if necessary, in your payments. SEMMES MOTOR COMPANY RAPHAEL SEMMES, President Used Car Department 7 14th St N.W. and 613 G St Main 6660 Open Evenings and Traders | United Kingdom, that the Congress as well | They pointed an high speed | dag me but is loyal once his | rity as ob. Arthur | were named trade by makes of cars NoW V Sts. N.W, DODGE BROTHERS DEALERS SELL 600D USED CARS Pot. 5446 Tires and Accessories Always a Wise Investment etter than ever before Dodge Brothers, Inc. have announced astonish= ingly low new prices. New Records New [rices Better in many ways—in beauty, comfort, driving 3 vision, engine smoothness, snap, elasticity and Graham Brothers Truck sales for getaway. 1925 werethelargestintheirhistory. They have announced important refinements in their product. Always building an exceptional car, they are now building better than ever. The simultaneous offering of lower prices and vital improvements is made possible by a gigantic expan- sion of buildings and equipment. Ten million dollars so invested permit great savings through vastly increased volume and efficiency. The previous record breaking year was surpassed by 123 per cent. Such healthy increases in demand require proportionate increases in Part of these savings goes into further betterment productlon. of the car. The other part goes directly back to the buyer—in the form of a price reduction that stag- gered the industry. Those who chose Dodge Brothers Motor Car in the past invested their money wisely. Graham Brothers four factories are now equipped for larger output than ever before. They are therefore able to give Today they invest more wisely than ever before. truck buye;rs the benefit of still further savings — OldPrice New Price 75 $795 Savings that are now passed along in the form of another substantial price reduction—the third such reduction in eight months! NEW PRICES 1 Ton Chassis 1% Ton Chassis MBM Low Chassis f.0. b. Detroit MOTOR COMPANY RAPHAEL SEMMES, President 613-619 G St. N.W. 1707 14th St. Night Phone, Main 1943 BROTHER SOLD BY DODGE BROTHERS DEALERS EVERYWHERE Touring Car - Roadster - - 855 795 Type-B Sedan - - 1045 895 Special Type-A Sedan 1280 1075 Coupe - - - - 960 845 Panel Commercial Car 960 885 Screen Commercial Car 885 810 Chassis - 730 655 F. O. B. Detroit SEMMES MOTOR COMPANY Raphael Semmes, President 613 G St. N.W. 1707 14th St. N.W. Night Phone, Main 1943 975 1245 1295 SEMMES 8 Dupont Circle Main 6660 GRAHA TRUC i 8 Dupont Circle Main 6660 Dopnce BROTHERS MOTOR CARS