Page:Patent for an Indicating device US1298871.pdf/3

UNITED STATES PATENT OFFICE. BORNETT L. BOBROFF, OF MILWAUKEE, WISCONSIN, ASSIGNOR, BY MESNE ASSIGN MENTS, TO EDWARD DILLMANN AND HENRY J.TURCK, TRUSTEES, OF MILWAUKEE,

WISCONSIN.

1298,871.

INDICATING DEVICE,

Patented Apr. 1, 1919. Specification of Letters Patent, Application filed June 16, 1917. Serial No. 175,237.

Referring now more particularly to the To all whom it may concern: accompanying there is provided a Beit known that I, BoRNETT L. BoBROFF, base plate 5 anddrawings, mounted sleeves a citizen of the United States, and resident 6 carried on this base plate inis ajournal central trans of Milwaukee, in the county of Milwaukee shaft 7, the ends of which carry gear 60 and State of Wisconsin, have invented cer verse segments 8 for coaction with front and rear tain new and useful Improvements in Indi indicating plates 9 and 10 respectively, cating Devices; and I do hereby declare that which are each slidably mounted on the side the following is a full, clear, and exact de - edges of the plate by engagement of their scription thereof. lower edge portions longitudinal grooves. 65 0 y invention relates to new and useful 10 in the sides of thein base plate and by en improvements in electrically controlled in gagement of bracket arms 11 upstanding on dicating devices, more particularly of a type the base plate inwardly of said indicating adapted for association with a voting ma in grooves 12 formed in inwardly chine, and including means for shifting a plates, extending flanges at the upper edges of the 70 15 symbol carrying plate. plates. These flanges are provided on It is in general the object of my invention base their bottom faces with teeth 13 meshin to simplify the structure and improve the with the teeth of the gear segments 8, an efficiency of devices of this character. upon rotation of the shaft in successive More particularly, an important object re thus 20 sides in the provision of an exceedingly sim steps, the front and rear indicating plates 75 simultaneously shifted. ple and positively operated mechanism for areFor procuring this shifting movement, the procuring a return actuation of the indicat plate 5 has its central bottom portion ing device to a neutral or starting position. base A further object resides in the provision upwardly offset transversely of the central 25 of a signaling device adapted to procure a portion of the shaft 7 to form a consequent 80 bottom chamber 14 and slidably mount plurality of differing indications and includ open ed in a groove 15 in said upwardly offset ing a single lamp member for all of said in plate portion is a rack bar 16 disposed thus dications, in contradistinction particularly of and under the shaft 7, and to the arrangement embodied in my applica transversely, 30 tion for patent filed October 2, 1916, Serial carrying at its end upstanding armature 85 plates 17 coacting with operating and re No. 123271. electromagnets 18 and 19 mounted on With the above and other objects and ad leasebase plate. Loosely mounted on the vantages in view, the invention resides more the shaft above the rack bar 16 is a sleeve 20 particularly in the novel combination, for having gear teeth meshing with the teeth of 90 35 mation and arrangement of parts herein rack bar, and fixed on the shaft at one after described and pointed out in the ap said side of the sleeve. 20 is a second sleeve 21, pended claims. both sleeves having coacting cam clutch teeth In the drawings: ' Figure 1 is a plan view of my improved on their adjacent ends whereby upon actua 40 indicating device adapted particularly for tion of the operating magnet 18 and conse- 95 quent shifting movement of the rack bar, use in connection with a voting machine and the 7 will be rotated one step. The providing for the display of corresponding shaftshaft urged against such rota indications at opposite sides of the device. tion byis anormally spiral spring 22 Secured thereto Fig. 2 is a longitudinal sectional view - 45 through the indicating device on the line and to the base plate and to hold the shaft 100 in successive rotative steps, an upstanding 2-2 of Fig. 1. pawl plate 23 is pivoted to one side wall of Fig. 3 is a detail sectional view on the line the chamber 14 and carries a tooth 24 en 3-3 of Fig.1. w with a ratchet wheel 25 fixed on the Fig. 4 is a detail sectional view on the line gageable shaft adjacent to sleeve 21, this pawl being 105 50 44 of Fig. 1, showing the holding pawl. normally urged to engaging position by a Fig. 5 is a fragmentary bottom plan view spring disposed in a cutaway portion of of the base plate of my device, showing the the base26plate, and bearing against the lower return springs for the main shaft and pawl. end of said pawl. Fig. 6 is an elevational view of the front For releasing the shaft to permit return 110 55 indicating plate.