US623486A - marsden - Google Patents

Description

No. 623,486. Patented Apr. l8, I899. A. M. MARSDEN. APPARATUS FOR ADVERTISING PURPOSES.

(Application filed Feb. 12, 1898.)

2 SheetsSheet I.

(No Model.)

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No. 623,486. Patented Apr. l8, I899. A. M. MARSDEN.

APPARATUS FOR ADVERTISING PURPOSES.

(Application filed Feb. 12, 1898.)

2 Sheets-8heet 2.

(No Model.)

zit; 71.233 25 "YA. 3mm LW 6% UNITE to TATES APPARATUS FOR ADVERTISING PURPOSES.

SPECIFICATION forming part of Letters Patent No, 623,486, dated April 18, 1899.

Application filed February 12,1898. Serial No. 670,103. (No model.)

To all whom it may concern.-

Beit known that LALGERNON M. MARsDEN, a subject of the Queen of Great Britain and Ireland, residing at London, England, have invented certain new and useful Apparatus for Advertising Purposes, of which the following is a specification.

The improvements forming the subject of this invention have reference to the mechanism described by me in the specification of my United States Patent No. 553,415, dated January 21, 1896; and the object of the present invention is to describe improved and simplified mechanism which will be more reliable in its action. According to such improvements I dispense with the escapement mechanism for controlling the movement of the rollers and their hands and also with the clockwork for actuating such escap'ement, as thereby the mechanism when applied to a wheeled vehicle will be less liable to suffer inj ury when the vehicle is traveling over rough or uneven streets or roads. Besides, escapement mechanism and clockwork are delicate and always liable to derangement. I also dispense with the spring-barrel and certainof its associate parts, and finally I improve the entire mechanism, as hereinafter set forth in the specification and pointed outin the claims.

The accompanying drawings show my improved mechanism applied to a Wheeled vehicle for the intermittent display of advertisements or the like, although with certain modifications the said mechanism can be employed for exhibiting advertisements or the like on hoard'ings or walls or in shops or other establishments.

Figure 1 is a sectional side elevation, and Fig. 2 a sectional front elevation, of a vehicle provided with my improved means or mechanism. Fig. 3 is a front elevation, Fig. 4 a plan, and Fig. 5 a vertical cross-section, of the mechanism, drawn to an enlarged scale. Figs. (3 and 7 are views taken at right angles to each other and showing also, to an enlarged scale, the means for keeping the bands taut on the upper rollers.

The bands a are, as in my previous arrangement, placed, preferably, behind glazed apertures b and are drawn off the upper rollers cl and wound onto the lower rollers d (1*, the intermittent movement as well as the reversing motion of which are effected by the mechanism shown in Figs. 3 and 4:, as will be hereinafter fully explained.

The main shaft, which is designated by the numeral 1, is supported in bearings 2. and 3 and has mounted loosely upon it miter-wheels 4. These latter are provided with sleeves, which extend through the bearings 2 and form at their inner extremities one portion of a pair of clutches 5 5*, whose other portion is adapted to be slid endwise upon a key or feather on the shaft 1. The miter-wheels 4 are permanently in gear with similar wheels 6, keyed on the shafts of the lower rollers at, so that the upper and lower rollers of either pair may be driven by the shaft 1, according as which clutch is in engagement.

A pinion 7 in one with a chain-wheelSand mounted loose on the shaft 1 transmits motion at a reduced speed to a spur-wheel 9, keyed on a counter-shaft 10, and a pinion 11, fast on this counter-shaft, imparts motion to anotherspur-wheel12, also mounted loose on the shaft 1. Thus the pinions 7 and 11, spurwheels 9 and 12, and counter-shaft lOare all rotated together by the chain-wheel 8, which receives motion from one of the wheels of the vehicle or from an independentmotor carried in the vehicle.

The main shaft 1 is ordinarily held stationary by means of a spring-controlled lever 13, pivoted at one end to the upper part of one of the bearings 3 and engaging by its free end into a notched disk 14, keyed on said shaft. This lever 13, whose free end is guided by the upper part of the other bearing 3, is lifted out of engagement at predetermined intervals by means of a cam 15 in one with the spur-wheel 12, and at the same time an incline on a face-cam 16 presses a pivoted arm 17 against the pinion 7, and thereby imparts to it and its chain-wheel S a slight endwise movement. Said chain-wheel has secured to its outer face a disk 18, provided with a tooth 19, adapted to be brought into contact with a similar tooth on a disk 20, keyed on the main shaft 1, and so cause it to rotate. A coiled spring interposed between the disks 18 and 20 forces them apart again when permitted to do so by the face-cam 16 and pivoted arm 17.

For driving one or the other pair of rollers I employ a shifting bar or fork 21, adapted to engage with the clutches 5 5*. Said bar or fork is pulled in one direction by a spring 22 and is moved in the other by a worm 23 on the counter-shaft 10, driving a worm-wheel 2-1 011 a shaft 24*. On this shaft is keyed a cam-disk 25, so arranged as to impinge against a pivoted lever 26, which in its turn strikes against an extension 27 on the shifting bar or fork, and thus causes this latter to move the clutch 5* into and the clutch 5 out of engagement, thereby reversing the direction of movement of the hands a. The movement imparted to one of the pairs of rollers by the mechanism above described is communicated to the other pair by an endless chain 28 and chain-wheels 29. A guide-wheel 30 carries this chain above the mechanism and-takes up its slack. By this arrangement of driving one pair of rollers from the opposite pair the bands are caused to move in opposite directions to each other-that is to say, onemoves upward and the other downward; but by crossing the chain both the bands can be caused to move in the same direction.

To cause the upper rollers to automatically take up the amount of band paid out by the lower ones, the shafts of the upper rollers are each provided with apinion 31, adapted to gear with atrain of toothed wheels controlled by a spiral spring 39, which is arranged to be wound up by the movement of its roller while the band is being drawn off therefrom by the lower roller, and which spring afterward on the reverse movement of the bands rotates the roller and causes it to wind up the band and keep it always taut.

The upper rollers may be provided with disks at each end to prevent endwise shifting of the bands.

Assuming the mechanism to be as shown in Figs. 2 and 3 and the chain-wheel S to be receiving continuous motion from the driving-axle of the vehicle, (or from a motor carried by the vehicle,) the working is as follows: The chain-wheel 8 transmits motion through the train 7, 9, 11, and 12 to the lifting-cam 15, and directly this cam has raised the lever 13 out of engagementwith the disk 14 the incline on the face-cam 16 commences to act against the pivoted arm 17, which then pushes the disk 18 into engagement with the disk 20, and thereupon the rotation of the shaft 1 takes place by the pinion 7. This motion is transmitted through the clutch 5 and miter-wheels 4 and G at an increased rate to the roller (7, which is thus caused to move the band a the distance of one advertisement. By this time the incline on the slow-moving face-cam 16 has released the arm 17, and the disks 18 and 20 are thrown out of engagement with each other by means of the coiled spring before mentioned. The lever 13, being no longer held by its cam 15, enters the notched disk 14 and holds the shaft 1 stationary until started again by the next cycle of movements. This intermittent motion of the shaft 1 and roller d continues until the whole ofthe advertisements on the band a have been exhibited. In the meantime the worm 22 has gradually turned the wheel 24 and cam-disk 25 and has brought the latter into position to act against the lever 26, so causing it to shift the bar or fork 21 endwise against the tension of the spring 22 and to engage the clutch 5* while disengaging the other one. Although the shaft 1 still continues to revolve in the same direction, the movement of the rollers will now be reversed, and the lower roller d, which in the first instance was driven by the mechanism, will. now be driven by the opposite roller (1*, the slack in the band being taken up by the up per roller (1 in the manner already explained.

\Vhen the mechanism is used in conjunction with a vehicle similar to that shown in the annexed drawings, I may provide a handlever 33, adapted to be brought into engagement with the wheel 31, which will then transmit motion to the chain-wheel 8, so that when the vehicle is at rest the advertisements may be shifted by the attendant in charge.

The bands may be illuminated at night, either from the inside or the outside of the vehicle,by gas, oil, or electricity, and when the vehicle is driven by a motor carried therein this latter may be utilized for the electric lighting.

Although the means or mechanism hereinbefore' described are shown applied to a wheeled vehicle, it is obvious that I can apply the same to apparatus for exhibiting advertisements on hoardings or walls or in shops or other establishments, and in such case I may use but a single set of rollers and employ an ordinary reversing-gear in conjunction with the mechanism hereinbefore described for intermittently rotating the main shaft, or I may arrange the main shaft to drive first one roller and then on reversing to drive the other roller.

Having now described myinvention, Iclaim and desire to secure by Letters Patent 1. In mechanism for displaying advertisements, or the like, the combination with the rollers carrying the advertising-web, a main shaft, and means for operatively gearing said main shaft with said rollers, of means for imparting an intermittent rotation to said main shaft comprising a chain-driving wheel connected with a pinion mounted loose on said shaft, a spur-wheel meshing with said pinion and mounted fast on a counter-shaft, a spur-wheel mounted loose on the main shaft and connected with a lifting-cam, a pinion on the counter-shaft meshing with said spurwheel, a toothed disk connected to said loose chain-wheel and pinion, a toothed disk fast on the main shaft, means for throwing said disks into engagement comprising a pivoted lever bearing against said loose chain-wheel Ioo and pinion, a cam operated by the turning of the said loose spur-wheel on the main shaft to throw said lever, and means for stopping the rotation of the main shaft comprising a notched disk fast on said shaft and aspringcontrolled pivoted lever adapted to .en gage in the notches of said disk to stop the rotation of the shaft and to be lifted out of engagement therewith by said lifting-cam to permit the shaft to rotate, substantially as described.

2. In mechanism for displaying advertisements, or the like, the combination with the rollers carrying the ad vertising-web, and having beveled gears at their ends, of a main shaft having loosely mounted on each end a clutch-sleeve carrying a beveled gear meshing with a gear of said rollers, means, such as described, for imparting an intermittent rotation to said shaft, a shifting fork carrying at either end clutch members sliding on said shaft and keyed thereon and adapted to alternately engage with said clutch-sleeves, a spring for normally holding said shifting fork in one position, whereby its clutch will engage one of said clutch-sleeves, a driving chain-Wheel and pinion mounted loose on the main shaft, a counter-shaft rotated thereby, a Worm 011 said counter-shaft, and a camwheel rotated by said Worm and operating to move said shifting fork against the resistance of its spring to disengage said clutch and clutch-sleeve and to bring the opposite clutch and clutch-sleeve into engagement, substantially as described.

3. In mechanism for displaying advertisements, or the like, the combination with a vehicle having journaled in each side an upper and lower roller of an advertising-web carried by and extending between each pair of upper and lower rollers, spring-motors controlling the motion of said upper rollers, beveled gears carried by said lower rollers, a

main shaft extending at right angles to said lower rollers, clutch-sleeves loosely mounted at the ends of said shaft and carrying beveled gears meshing with those of the lower rollers, means, such as described, for imparting an intermittent rotationto the main shaft, a shifting fork carrying at each end clutch members splined on the main shaft, and means for moving said fork laterally in either direction to bring one or the other of its clutch members into engagement with its respective clutch-sleeve, means for stopping the rotation of said shaft and a chain transmitting mot-ion from one lower roller to the other, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- Witnesses:

GEORGE ERNEST MINTERN, WALTER J. SKERTEN.

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