US 2528962 A
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Description (OCR text may contain errors)
Nov. 7, 1950 E. A. LIEUTARD 2,528,962
TRAFFIC SIGNAL Filed April' 27, y 1949 Patented Nov. 7, 1950 UNITEDSTATES ,PATEIWorifice Emile A. Lieutara, san Francisco, Calif.
Application April 27, 1949, Serial No'. 89,889
2 Claims. l
This invention relates to improvements in traffic signals and has particular reference tovan eye-high mobile signal.
The principal object of 'this inventionV is to y provide a signal unit which may be transported from place to pla-ce for use in directing highway traflic, particularly wheredetours or other obstacles necessitate the normal flow of traiiic being diverted to one side or the other of the normal traiiic flow in the area.
A further object is to provide means whereby the signal may indicate to a driver of the oncoming vehicle exactly the condition which is prevailing ahead, so that the driver .of the vehicle approaching the signal Will have time to execute the proper maneuver.
A still further object is to provide means for activating the signal so that it will attract the eye.
A still further object is to provide a signal which is of sturdy construction and one which is so positioned that it may be seen above the tops of automobiles which may be proceeding, one behind the other.
Other objects and advantages will be apparent during the course of the following description.
In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,
Fig. 1 is a front elevation of my signal,
Fig. 2 is a side elevation of Fig. 1, and
Fig. 3 is a perspective View showing my signal, as the same would appear in use.
Fig. 4 is a section on the line 4-4 of Fig. 2.
Many traic accidents, particularly rear-end collisions, are caused by highway construction work or other traic hazards which are only temporary and which must be avoided by vehicles travelling over the highway. Ordinarily, these traic hazards are blocked off by a saw horse, on which is positioned a sign, Detoun This type of blockade is so low that it is invisible to one car behind another and, therefore, when the rst car approaches the barricade, sudden application of the brakes causes the car behind to become involved in a rear-end collision. This type of accident often results in quite a procession of cars becoming involved in the accident, with the resultant damage to the cars, as well as bodily harm.
Applicant has, therefore, devised a signal which may be placed upon a highway and moved from place to place, which signal will have a plurality of semaphore-like arms which are activated by a wig-Wag signal, thereby attracting attention, these'wig-Wag arms being elevated to a point where they will be .Visible to all of thecars in the line of traiiic so that each driver will have equal opportunity and will be forewarned' that he must slow down, as a traic hazard is being engaging pins 8, which are normally retracted by springs 9, and which have their upper ends bearing against cams I I, actuated byv a handle I2. This engagement enables the entire device to be wheeled to any desired position and then locked against further movement.
Mounted upon the base 5, is a plurality of spaced tubular standards, as shown at I3 and I4.
A battery box is shown at I6.
Within the standards I3 and I4, are positioned reflectors Il, which will function, should, for anyv reason, the electrical equipment fail.
The upper end of the standards I 3 and I4 serve to support diverging trays I8 and I9, in which are stored a plurality of semaphore arms 2| and 22 respectively. These arms are all carried upon a common pivot 25.
Extending upwardly from the apex formed by the trays is a standard 23, upon which is pivoted an arm 24 having an illuminated signal 26, -uponv its upper end. The pivotal point of this arm is shown at 21.
Ears 28 and 29 are formed upon the opposite sides of the arm 24, and through the medium of these ears, links 3| and 32 may be engaged with ears 33 and 34, formed upon the semaphore arms 2| and 22 respectively.
A diamond-shaped case 36 forms a suitable housing for any desired type of driving gear for actuating the arm 24, and the connected semaphore arms 2| and 22, the type of drive being immaterial to my invention.
When a signal is constructed in accordance with my invention, the same vmay be wheeled on to location and then, by actuating the lever |2 and cam I I, the pins 8 may be forced downwardly to take the load of the whole device 01T of the wheels 6 and 1.
By now turning on the current which may be furnished by cable or which may be from batradius from the pivotal point 21, to the ears 28 or 29, it will be observed that, as the arm 24- oscillates, the movement transmittedv to the arms Will be relatively less and, consequently, the arms 2| and 22, while moving in thesame sequence, will move at a slower speed than the arm 24; Therefore, any matter printed on the arms can be easily read, even though the arms are moving. By unhooking the link 3l or the link 32, any one of the arms within1the trays may be selected to conform with the information that is to be conveyed to the driver of the approaching vehicle. J'It will thus beseen that my signal will accomplish all the objects above set forth. 1 It is to be understood that the formV of my invention herewith shown and described is to be taken as a preferred example of the same and that various changes relative to the material, size,
shapey and arrangement of parts may be resortedY towithout departing from the spirit of the invention or the' scope of the subjoined claims.
Having thus described my invention, I claim: l. Ina traffic signal, a base, supports extend-Y ing upwardly from said base at each sidek thereof, trays each havinga lower end supported by the supports at a respectiveside of the, base, said trays extending converginglyrupwards to a common apex, a shaft extending transversely of said traysat the convergent ends thereof, a series of 4 semaphore signal arms in each tray and having their upper ends pivoted on said shaft, said arms each having a specic signal indication impressed thereon for indicating different signals upon selective exposure of said arms, spaced standards extending upwardly from the apicial junction of said trays, an oscillatory' arm pivoted at its lower end between said standards and extending upwardly therefrom, links pivoted'each'at one end .to a respective side of said Voscillating arm, and
coacting means on said semaphore arms and the remaining ends of said link selectively connecting a semaphore arm from eachtray with a respective link.
2. In a .traffic signal, a base, supports extending upwardly from said base at each side thereof,
rtrays each having' a lower end supported by the supports at a respective side of the base, said trays extending convergnglyA upwards to a common apex, a shaft extending transversely of saidtrays at the convergent endsthereof, a seriesof sem-aphore signal arms in each'tray and ,having their upper ends pivoted on said shaft, said arms-each having, aspecific signal indication impressed thereon for' indicating different'signals upon selectivel exposure of saidY arms, and means to selectively support a semaphore arm from each tray land oscillate the'supported arms through horizontally alined positions.
EMILE'A. LIEUTARDQ REFERENCES CTED The following references are of record in the Vfile of this patent:
UNITED sTATEs PATENTS Number Name V V Date 520,756 Davis May 29, 1894 1,651,221
OMa1ey' r r Nov, 29, 1927