US489625A

US489625A - beinkman

Info

Publication number: US489625A
Authority: US
Publication date: 1893-01-10
Anticipated expiration: 1910-01-10

Description

(No Model.) 2 Sheeps-Sheet 1.

l S. G. BRINKMAN.

ELEGIRIGALLY GONTROLLBD VENTILATOR.

Patented Jan. 10, 1893.

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(No Model.) 2 Sheets-Sheet 2.

S. G. BRINKMAN. ELEGTRIGALLY'CONTROLLED- VENTlLATOR.

No. 489,625. Patented Jan; 1o, 189s..

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Unirse STATES PATENT @trineo SEBASTIAN G. BRINKMAN, OF NEW YORK, N. Y.

ELECTRlCALLY-CONTROLLED VEN-TILATOR.

SPECIFICATION forming part of y Letters Patent No. 489,625, dated January 10, 1893. Application tiled March 3, 1892. Serial No. 423.560. (No model.)

I claims.

In the accompanying drawings: Figure l is a top view of the operating mechanism. Fig.l

2 an elevation thereof. Fig. 3 across section through a skylight provided with my improvement. Fig. et a section on line 0c, Fig. l. Fig. 5 a detail ot the operating and deteut pawl and Fig. 6 a detail of the shoulder n.

The letter a, represents a casing inclosing two pairs of electro-magnets b, b, b', b; between these electro magnets, there oscillates upon a pivot c4 hung in a bracket c', an upright armature c. To this armature there is attached an arm c2, terminating iu a head c3. To this head there is pivoted a pair of diverging pawls d, d, engaging a ratchet wheel e, that revolves on a shaft e', fast on the bracket c. The wheel e, is provided with a pinion e2, engaging a toothed wheel f. This wheel turns on a shaft f', and is provided with pinions f2. These pinions engage the teeth of two racks g, g', extending in opposite directions and meshing respectively into the top and bottom of the pinions f2. The outer ends of the racks g, g', are pivoted to the valves h, turning on pivots h, and shown to be set into a skylight h2. Of course, these Valves exclude or admit air by being closed or opened and they may loe located at any point where such an obj ect is to be attained. is a battery. 2, the contact posts and 3, the switch for opening and closing the circuit. This switch I have shown to be formed by a thermostat 4, which is used when the ventilator is to operate automatically at a predetermined temperature. If this is not desired however, the switch is set by hand. 5, 6, are the two battery wires going to the binding posts j, j', respectively. If the switch is set to make contact With the post 2, the current travels as follows: Through the wire 6,

post j', electro-magnets b, b, wire 7, post j, wire 8, post 2, switch 3, thermostat 4, wire 9, post j, wire 10, contact spring 7c, armature c, and out through the ground or base to the post j, and by the wire 5, back to the battery. The result will be to vibrate the armature from its central position toward the electromagnets b, and in this way the right hand pawl d, will revolve the ratchet wheel c, to the right so as to revolve, by the wheels e2 f, the pinions f2, to the left. Thus the racks g, g', are drawn inward to close the ventilators h.

It the switch is set to make contact with the post the current travels as follows: Through the wire 6, post j', electro-magnets b', b', wire 11, post j, wire 12, post switch 3, thermostat 4, wire 9 post js, wire 13, contact spring 7o', armature c, and out through the ground or base to the post j, and by the wire 5, back to the battery. The result will be to vibrate the armature from its central position toward the electro-magnets b', and in this way the left hand pawl d, will revolve the ratchet e, to the left so as to revolve, by the wheels e2, f, the pinions f2, to the right. Thus the racks g, g', are pushed outward to thus open the ventilators h.

In order to disengage the inoperative pawl d, from the teeth of the wheel e, each pawl is provided with a backwardly and forwardly extending pin fm. At the front, the pins are connected by a spring d. At the rear the pins engage a shoulder n, raised at the center (Fig. 6) and held by the bracket c', directly back of the pawls. It is clear that if the armature is vibrated in either one direction, the pin m, of the neutral pawl ol, is by the spring d', drawn upon the raised part of the shoulder n, and is thus thrown out of engagement with the wheel e.

In order to prevent the pressure of the ventilator h, exercised through the racks and gear wheels from counteracting the motion imparted to the gear wheel e by the pawls d, I employ a pair of detente 19,19. These detents engage the ratchet wheel e, and are pivoted at p', to the shoulder n. Each deteut is provided With an upwardly projecting arm p2. These arms are adapted to be engaged by the bent ends of a rod p3, attached to the bar c2. As the armature vibrates, one of the detents p, will be'raised out of engagement with the IOO wheel e, while the other detent will be thrown into engagement with such Wheel. A spring p4, connecting the detents p, holds the operative detent in place and permits it to glide over the teeth as the wheel is revolved.

The usual armature springs c are shown in Fig. 5, and are connected at one end to the armature and at the other end fixed to eyes c6.

In order to hold the racks g, g', in contact with the pinions f2, and to still permit the slight tilting motion of suclrracks, I hang upon the shaft f', a pair of triangular bearing plates (1,(1, provided with the rearwardly extending rollers (12,(23. Between these rollers and pinions f2, the racks g, g', are introduced and as the racks swing up and down, the bearing plates q, q', will follow their motion as will be readily understood.

It will be seen that by my invention, I am enabled to easily operate ventilators placed at an inaccessible position, from the most desirable point and'without any muscular exertion or the employment of cumbersome and unsightly motion-transmittin g mechanism.

lVhat I claim is:

l. The combination of a pair of electro magnets with an intermediate pivoted armature, a paw] connected to the armature, a ratchet Wheel engaged by the pawl, a pivoted valve and mechanism for transmitting the motion of the ratchet wheel to the valve, substantially as specified.

2. The combination of a pivoted valve with an electro-motor, pinion f2, revolved thereby and a rack engaging the pinion and secured to the Valve, substantially as specified.

3. The combination of electro magnets b, b', with armature c, paWls d, ratchet Wheel e, engaged by the pawls, pinion f2, revolved by 4o the ratchet Wheels, a rack engaging the pinion, and a valve secured to the rack, substantially as specified.

4. The'combination of an electro-motor with a thermostat within its circuit, a pinion revolved by the electro motor posts t" i2, for cointact with the thermostat switcli,avalve h, and racks engaging the pinion for connecting the electro-motor with such valve, substantially as specified.

5. The combination of electro magnets b, b', with armature c, pawls d, pivoted thereto, gear Wheel e, pinion e2, gear wheel f, pinion f2, a rack engaging such pinion and a valve engaged by the rack, substantially as specified.

6. rlhe combination of electro-magnets b, b', with armature c, actuating pawls (l, d, detents p, p, gear wheel e, engaged thereby, pinion f2, revolved by the gear Wheel and with rack g, and valve h, substantially as specified.

7. The combination of electro magnets Z), ZJ', with armature e, pawls d, d, pivoted thereto1 pins m, spring cl' and shoulder n, for disengaging the pawls and With the pinion f2, rack g, and valve h, substantially as specified.

S. The combination of elec-tro magnets b, Z1', with armature c, paWls d, (Z, detents p, p, arms p2, bent rod p3, spring, and with ratchet Wheel e, pinion f2, rack g, and valve 7L, sub stantially as specified.

9. The combination of electro-magnets b, b', with armature c, pawls d, gear Wheel e, pinion f2, pivoted bearing plate q, rack g', engaged thereby and with valve h, engaged by the rack, substantially as specified.

S. G. BRINKMAN. lVitnesses:

F. v. BRIEsEN, WM. SCHULZ.