US1818509A

US1818509A - Changeable sign

Info

Publication number: US1818509A
Application number: US411110A
Authority: US
Inventors: Joseph D Self
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-12-02
Filing date: 1929-12-02
Publication date: 1931-08-11
Anticipated expiration: 1948-08-11

Description

Aug. 11, 1931. J. D. SELF I CHANGEABLE SIGN Filed Dec. 2. 1929 2 Sheets-Sheet J. l gul.

doooooooooooooooooo a m/me/e AND 3181" QeJBWQ min J n vlu nu" II!" I n DQOOOOGOOOO UOQOOQOOOOOm a k fl r Mar/up.

Aug. 11, 1931. J. D. SELF CHANGEABLE 5 IGN Filed Dec. 2. 1929 2 Sheets-Sheet :2

go 0 000000 oooooooooolb A? I I h 8 U 22 2.92 za/z 27 m l I 24 Z v eat? Patented Aug. 11, 1931 v i UNITED STATES PATENT orrics I a v :r'osnrnn. SELF, on wAYNEsvILLE, NORTH CAR'OiiINA I GHANGEABLZE sron Application filed name 2, 1929. Serial No. 4114 10.

This invention relates to changeable signs elongated strip or web 6 containing the reg'u and is designed more particularly as an imlarly spaced advertisements is provided near provement upon the structure disclosed in each of its side edges with a longitudinal Patent. 1,710,745 issued to me 011 April 30, series of apertures 7 into which the teeth 5 1929. p are adapted'to project so as to insure '55 In the patented structure it was necessary tive act'uatio'nof the web when the roll 3 is to space the advertising matter at different rotated. a distances apart to compensate for variations A take-up s'pool 8 is located in the upper v in the size of the rolled web carrying the portion of the housing adjacent the back advertisements. This has been objectionable thereof and one end of the web6 is attached ,60 because of the problem presented during the thereto. Another spool 9 is journale'd in printing operation. the lower portion of the housing near the It is an object of the present invention to back thereof and to this is attached the so mount the elongated strip or web carryother end of the web 6. This latter spool ing the advertisement that it becomes unhas a key 10 extending therefrom through 65 necessary to space the advertisements at difoneside of the housing by means of which ferent distances apart. the web can be wound rea'dily on the spool.

Another object is to simplify and improve Spool 8 has a grooved wheel 11 rotatable I upon the mechanism employed for actuating therewith and seated in the groove in this the web. wheeljis a belt 12 mounted on a grooved -70 With the foregoing and other objects in wheel 13 rotatable with the rolls. This belt view which will appear as the description canb'e formed of an endless coiled spring proceeds, the invention resides in the comand constitutes means for transmitting rnobination and arrangement of parts and in tion to spool or wheel 11 from roll 3 while, at the details of construction hereinafter dethe same time, permitting lost motiondue 7 scribed and claimed, it being understood to slippage,

that changes in the precise embodiment of The r0113 ms. a bearing stem 14 extending the invention herein disclosed may be made th'erefroin to which the grooved wheel 13 is within the scope of what is claimed without secured so as to rotate therewith. On this departing from the spirit of the invention. stem l l is slidably and rotably mounted a In the accompanying drawings the presleeve 15. (renamed ofthesleeve is seferred form of the invention has been shown. cured a small gear 16 while the other end of In said drawings, the sleeve, which projects through one side Figure 1 is a vertical transverse section of the housing, hasan opemting knob 17 by through the housing of the changeablesign mgns of whi h th Sleeve can be actuated. .35

showing the lmproved mechanlsm thereln 1n A i1 d p i 1 i o ht t Sleeve gf 2 and bears against the hub of gear 16 while i r 3 i zt on i g i t its other end bears against the housing. "T" lgure 0 1S a Sec 10.11 o m 7 i we Thus- Year 16 is heldnormall ressed to- 40 Figure 4 is a section on line 1, Figure 1. p 9.0

wardthe grooved wheel13. Sleeve 15 has a lon itudinal slot 19 oneend of which isiproreference 1 designates a houslng havin a window 2 through which the various adv er- Vlded Wlth lateral f t g P1921 tisement-s are adapted to be displayed interextends from h m slot 19 i mittently. Above the window there is los normally t hO1-d -the s1e eVe ;aga1ns t cated a roll 3 extending transversely within Q l 011 1. While auOWmg l to b the housing while another roll 4 is located Pulled l -g y- Vvhe? V below the window and transversely of the 1 11 1 ou w rdly n hen g ven a partlal housing. Roll 3 is provided, near its ends, rotation, th lMBGT lly extending- .P T iOn 20 with annular series of teeth 5 and the of the slot willrecelve the pin 21 so as to Referrin to the fi ures b characters of hold spring 18 under compression with gear 16 out of its normal position.

An intermediate shaft 22 is journaled in the housing and carries a large segmental gear 23 and a smaller worm gear 24. The segmental gear is positioned where it will come into engagement with the gear 16 and rotate it once during each rotation of the segmental gear. The worm gear 24 is engaged by a worm 25 secured to a shaft 26 which, in turn, carries a worm gear 27. This latter gear is adapted to receive motion from a worm 28 secured to a drive shaft 29 one end of which is extended from the housing 1 as shown at 30. This shaft 29 is adapted to be driven by any suitable means provided for that purpose.

It is to be understood that while the shaft 29 is in action, motion will be transmitted therefrom through the gearing to the segmental gear 23 and once during each rotation of this gear it will move into mesh with and actuate the small gear 16. The parts are so timed that each actuation of gear 16 will be sufficient to move web 6 a distance equal to the height of one advertisement thereon. In other words, each time the web is actuated, one advertisement being displayed through the window 2 will be displaced by another advertisement. As the segmental gear moves out of mesh with gear 16 the web will remain stationary until said gear is again actuated whereupon another change is made.

The web is actuated by the teeth 5 engaging the marginal portions thereof and motion is transmitted from the wheel 13 through the belt 12 to spool 1 so that this spool will take up slack in the web as said web is fed over and away from the roll 3. As the belt not only drives the spool 8 but is also free to slip on the wheel 11 it will be apparent that any variations in the diameters of the rolled web on spool 8 will be compensated for.

When it is desired to reverse the operation of the device, the sleeve 15 can be pulled outwardly to withdraw gear 16 from engagement with segmental gear 23 and the parts can be held in this position by giving a rotation to the sleeve so as to cause the pin 21 to become seated in the slot extension 20. By means of key 10 the web can be wound on the spool 9 after which the operation already described can be repeated.

If desired, any suitable power means can be employed for quickly winding the web on the spool.

\Vhat is claimed is:

A changeable sign including a housing having a window, toothed rolls in the housing, a take-up spool back of one of the rolls, a rewind spool back of the other roll, a web secured at its ends to the respective spools and supported by the-rolls across the winfor holding the shiftable gear in engaged position and means for rotating the rewlnd spool when the gear is disengaged and at any desired speed, said means being independent of the driving mechanism.

In testimony that'I claim the foregoing as my own, I have hereto afiixed my signature.

JOSEPH D. SELF,