US1359263A - maclanglois - Google Patents

Description

0. MAcLANGLOlS. MULTIPLE ALARM SYSTEM. APPLICATION FILED MAR. 7. 1919.

1,359,263. Patehted Nov. 16, 1920;

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0. MACLANGLOIS.

MULTIPLE ALARM SYSTEM.

APPLICATION FILED MAR. 7. 1919,

Patented Nov. 16, 1920.

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ObariMZmzylois; afibz UNITED STATES PATENT OFFICE.

OBAR'I. MACLANGLOIS, OF LOS ANGELES, CALIFORNIA, ASSIGNOB-OF ONE-HALF TO JAMES W. OAKES, 01 LOS ANGELES, CALIFORNIA.

IULTIPLE-ALARM SYSTEM.

Application filed March 7,

To all whom it may concern:

Be it known that I, OBART MAoLANGLoIs, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Multiple-Alarm Systems, of which the following is a specification.

My invention relates to alarms and particularly toa type of alarm capable of giving a plurality of different s' als, or alarms, at predetermined times an in regular order, the objects being to provide a suitable mechanism in cooperation with a time indicating mechanism, whereby, when initially set at a desired hour or fraction thereof an alarm will be automatically sounded; to provide, further a suitable receptacle in which the alarm mechanism may be housed, together with separate means whereby a plurality of electrical circuits and connections ma be established.

A furt er object is to provide a set of batteries in the mechanism'housing, or case, and an alarm gong, or bell separate from any Such alarm which may be on the clock. Other objects will appear as the description progresses.

Referring to the drawings, forming a part of this application, I have illustrated a practical embodiment of my invention therein, in which:

Figure 1 is a perspective view of the assem led me hanism and case therefor.

Fig. 2 is a longitudinal section of the same.

Fig. 3 is a perspective view of one of the plugs and cords, showing the structure thereof.

Fig. 4 is a fragmentary perspective view of the hour 'hand of the clock showing a contact thereon.

Fig. 5 is a similar view of the minute hand with a contact thereon.

Fig. 6 is a sectional plan of the housing.

Fig. 7 is'a transverse section of the same.

Fig. 8 is a sectional view of the hour and minute hand mounting and connections.

Fig. 9 is a circuit diagram of the electrical connections for my mechanism.

Similar characters of referen"e are employed in the specification and the several Specification of Letters Patent.

Patented Nov. 16, 1920.

1919. Serial No. 882,486.

views of the drawings for indicating the same and like parts.

The case 1 may be of any suitable form and of convenient dimensions, a strap 2 being provided on the top of the form shown by means of which the case may be carried about and a door 3 being provided on the right hand side thereof for affording access to the interior of the case.

Interior of the case and slightly spaced from the front wall 4, I provide a block 5 with a circular opening 6 therein adapted to receive and hold firmly in position a clock 7, as shown in Fig. 2, the clock being additionally braced to the front wall 4 by means of straps 8 attached to one end to the clock and at the other end to the inner side of the wall. The clock is preferably centered with respect to the case and an opening 9 is formed concentrically therewith in the front wall 4 and has a glass pane 10 held in place by means of a wire retainer 12.

On the outer side of wall 4, I provide an insulated ring 13 countersunk in the wall and concentrically held relative to the open ing 9 by means of screws 14 and a plurality of perforations 15, 15, 15, etc., are formed in said ring, there being preferably twelve of these perforations, one arranged on the radial line of each of the hour figures on the clock within the case. Between the ring 13 and the opening 9 of wall 4 and concentric therewith, I provide another ring of insulating material, su h as hard rubber, or wood'fiber, as at 16, and this inner ring has one perforation 17 for each minute space on the dial 18 of the clock, as shown in Fig. I.

On the interior of the wall 4, I provide a series of electrical contact plates 19 arranged in circular formation and having the form of a segment of a cir. le, as shown in Figs. 7 and 9, there being one of said segments for each hour on the face of the clock dial and the said plates being positioned on wall 4 so that the ends thereof will be equally spa ed relative the hour figures on the clock. The segments are alined horizontally with the outer ring 13 and are spaced apart so as not to make contact, the adjacent ends thereof being preferably reduced in width and overlapping in formation, as shown, for producing the best result.

In the rear portion of the case 1 a pair of electric storage batteries 20, 20, are firmly connected by means of a wire 25 with the minute hand 26 of the clock, a suitable clip or friction contact 2'? being mounted adjacent to the minute hand and for contact therewith.- As shown in Fig. 8, the shaft 28 which carries said hand has an insulated bushing 29 thereon which insulates the hand from the shaft-and the clip 27 is held on the bushing loosely so that the hand may rotate around the dial without winding the wire 25 on the bushing, said w re being at tached to said clip, as shown.

Similarly the hour hand 30 has an insulating bushing 31011 the sleeve 32 thereof and'a clip 33 which is connected by means of a wire B l with one terminal 35 of the bell 24," the outer terminal 36 of the bell being connected. by means of wire 37 with batten ies 20. Thus it'will be observed that the bell 24 isin series with the batteries 20 and that one pole of said batteries is connected permanentlywith the minute hand of the clock while the other pole isconnected with the hour hand, but the said hands being in-;

sulated from the clock mechanism no current willat any mechanism The hour hand 30has a set of thin metallicand flimsy contact strips 38 attached to the end thereof which are adapted to wipe.

the segments 19 in a path near the inner edge-thereof and thus make contact with and transmit electric current to said plates being continuous from'one hour to another, but a slight gap 39 being provided between each of the-plates so that only one offthe plates will be energized at a time.

timefiow through the said hole 15 of ring 13 opposite the hour while the other plug of this set, bearing the same number, is inserted in the hole 17 of ring 16 opposite thesixteenth minute mark of the dial of the clock. Thus the alarm is set 1 16 p. m. or a m as the casemay be, and when the hour hand passes the hour of 1 contact is made with the segment 19 of that hour and said plate will thus be connected with the batteries 20 through the hour hand 30 and the other connections de scribed. When the minute hand reaches the plug positioned at 1:16 thefiimsy contacts 16 "will wipe the plug stem, whichis 6X tended into the path of said contacts, and the circuit will be completed through cord 45-, thus energizing the bell 2a and sounding the alarm. 7

it will be obvious that the provision of the cords a5 and pairs of plugs attached tl'iereto renders" the mechanism capable of producing as many different alarms as there may be pairs of connected cords available, each circuit being completed only by its individual cord and plugs. It will be understood that when the plug is inserted in the outer ring 13, the stem of said plug also is seated in the segment 19 opposite that particular portion of ring 13 and the connection' is'thusmade between the plug and In the mechanism described and shown it 'will be apparent that I have provided an ethclent-and economical alarm mechanism 7 in succession as the hand is moved around the dial of the clock, the contact thus made Connection may be established between the hour and minute hands of the clock by" means of a pair of plugs 40 having split stems 41 adapted to be inserted in the holes 15 of ring 13'and 17 of the ring 16, each plug having an insulated head 12 with a mica sheet 43 held on the fa e thereof by means of 'a ferrule 44. A card may beheld on the end of each plug bearing a number,

as shown, and the plugs of each pair are connected by means of a flexible electric cordv .45.

The plugs of each pair are numbered similarly. and each connection is known and identified by the numbers of the plugs.

which may be used for a variety of purposes. @neuse to which the mechanism maybe put is in connection with tire repair,"or vulcaniz- 7 ing apparatus, in which business it is necessary to keep accurate record and account of the times when tires are placed inand should be removed from the molds after the cook ing operation for uniting the old and .new'115 should be completed.- Likewise each mold may have a separate pair of the 'i jlugs and separate alarms will be sounded for each job without interference with any of the others, and much time and'labor will be saved thereby.

Hotels may also employ V y device for indicating the time to make certain night calls to the rooms, and many other similar uses may be found where this instrumement will not only be found to be a convenience but a labor and time saving device.

What I claim is:

1. In a time indicating system, a clock having hour and minute hands thereon, overlapping contacts in the path of said hour indicator, means for energizing said hour and minute hands, and means capable of being selectively positioned relative to the hour points 011 said clock, for indicating different times recorded on said clock.

2. In a device of the character described, a clock for indicating the time, an electrical circuit including the hands of said clock, overlapping spaced contacts for engagement by said hands, and selectively positioned contact elements for completing the circuit of said stationary contacts and said hands, for the purpose described.

3. In a device of the character described, the combination with a clock having the hands thereof connected with a source of electric current, stationary contacts opposite the hour points on said clock for engagement with the hour hand thereof, and selectively positioned contact elements for engagement with the minute hand thereof and means for connecting said stationary and selectively positioned contacts, for the purpose set forth,

Signed at Los Angles, Los Angeles county, California, this 19th day of February, 1919.

OBART MAoLANGLOIS.

In presence of- J. W. OAKES, H. M. BRUNDAGE.

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