US1032141A

US1032141A - Pneumatic-despatch-tube apparatus.

Info

Publication number: US1032141A
Application number: US34204506A
Authority: US
Inventors: Chester S Jennings
Original assignee: LAMSON CONS STORE SERVICE CO
Current assignee: LAMSON CONSOLIDATED STORE SERVICE Co; LAMSON CONS STORE SERVICE CO
Priority date: 1906-11-05
Filing date: 1906-11-05
Publication date: 1912-07-09
Anticipated expiration: 1929-07-09

Description

G. S. JENNINGS.

PNEUMATIC DESPATGH TUBE APPARATUS.

APPLICATION IILHD NOV. 5, 1906.

1,3,141 Patented July 9, 1912.

3 SHEETS-SHEET 1.

G. S. JENNINGS.

PNEUMATIC DESPATGH TUBE APPARATUS.

APPLIOATION FILED NOV. 5, 1906.

1,93%,141 Patented July 9, 1912.

3 SHEETS-SHEET 2.

Mfiwasew @XW A C. S. JENNINGS.

PNEUMATIG DESPATGH TUBE APPARATUS.

3 SHEETS-SHEET 3 Patented July 9, 1912.

APPLICATION FILED NOV. 6, 1906.

' controlling the power.

elevation partly in section of the lower part sra'rns PATENT oriuon.

CHESTER S. JENNINGS, OE BOSTON MASSACHUSETTS, ASSIGNOR TO LAMSON CONSOLI- DATED STORE SERVICE COMPANY, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

PNEUMATIC-DESPATCH-TUBE APPARATUS.

Specification of Letters Patent.

Patented July 9, 1912.

power whereby the aircurrent may be re-,

versed for the transmission of carriers through a single transit tube in either direction. I

Another object is the control of the power whereby carriers upon discharging automatically shut off the power thereby l miting the use of the same to the interval necessary for the proper transmission and delivery of a carrier.

In the accompanying drawings which illustrate a construction embodying my invention, Figure 1 is a diagram of a single tube pneumatic system embodying my invention and showing electric circuits for Fig. 2 is an enlarged of Fig. 1. Fig. 3 is an enlarged detail of the air reversing valve. Fig. 4 is a vertical section of part of Fig.1. Fig. 5 is a front elevation partly in section of Fig. 4.

Like letters of reference refer to like parts throughout the several views.

A and B represent respectively a sub-station and a central station connected by a single transmission tube C open to the atmosphere at station A and controlled by a lock valve B at station B.

C is an air tube communicating with the transit tube C at its lower end at central station B through a casing or elbow B The lower end of the air tube 0 is connected with the pressure and vacuum ports of the blower D by means of the'branch tubes 1) and D respectively. The blower D is driven by the motor M through the belt M. The connection of the branch tubes D and D with the air tube 0 is controlled by an air-switch preferably in the form of the rotary valve E pivoted at E and operated through the crank E and rod E (Fig.

An opening D located at the junction of the tubes D andv D and below the air tube 0 is adapted to be controlled by the valve'E to connect either of thetubes D or D with the atmosphere; thus it will be seen that with the blower in operation and the valve E in the full line position as shown in Fig. 3, the vacuum side of the blower will be in communication with the air tube C through the branch tube D while the pressure side of the blower will be free to exhaust into the atmosphere through the branch tube D and opening D. This position of the valve will cause a current ofair to flow in the transit tube C from station A to station B. In the reverse or dotted line position of the valve E as shown in Fig. 3, a current of air the pressure side of the blower D thence through the air tube C; in the meantime, air will be supplied to the vacuum side of the blower through the branch tube D and opening D The position of this valve E is controlled by the lock lever B which is connected thereto by means of the arm B, the rod E and crank E When a carrier is to be despatched from station A to station B, the lock lever B is in the position shown in Fig 4 and the valve E in the fullline position as shown in Fig. 3, while the valve B is held closed by the partial vacuum in the transit tube C until the carrier discharges at station B. If a carrier is to be despatched from station B to station A, the valve B will have to be locked in closed position by means of lock lever B on account of the pressure within the transit tube 0. This lock lever B upon being closed'moves the valve E into the dotted line position Fig. 3 and the current of air is circulated through the tube 0 from station B to station A in a manner heretofore described.

Located at station B in close proximity to the valve B is a casing F containing the magnets F which are adapted to operate upon one end of a bell crank lever F pivoted at F the other end of the-lever F carrying a projection or latch F adapted when the magnets F are energized to engage with and lock the lever B in closed pois adapted to hold the sition. A'spring F- with the lever latch F out of engagement B when the magnets are deenergized.

operated by a carrier in transit 1n the tube C in the opposite direction.

1 circuit breaker Mounted in the cabinet H which contains the motor and blower connections (Fig. 2), is a swing switch S adapted to .be operated by a' magnet the motor M in a manner to be hereinafter described.

In despatching a carrier from station A to station B, the carrier is inserted into the opening in the transit tube at A and the operator then presses the button X which energizes' the magnet J and closes the swingswitch S and through contacts W \V closing the circuit through the motor M and line Wires L and L thereby starting the motor, and through blower D causing a current of air to be drawn through the transit tube C from station A .to station B, and thence through the blower to the atmosphere as heretofore described, causing the carrier to be despatched from station A through the tube C in the direction of station B. The circuit through the magnet J with the button X closed is as follows: from the batteries Z through wire Z, button X, contact X, wire X and wire X through circuit breaker G wire X magnet F and wire ,X to magnet J, thence through wire Z to batteries Z.- In the meantime, the operator has released the button X and the motor controlling or swing-switch S is held closed by means of the insulated bridge piece S engaging contacts S and S and maintaining the circuit through the magnet J. The circuit closed by bridge-piece S is now as follows: from the batteries Z through wire Z, Wire Z circuit breaker G thence through Wire Z to contact S through bridge-piece S, contacts S wire X contact Y, wire X wire X circuit breaker G wire X magnet F, wire Xi, magnet J, thence to the batteries Z through wire Z The carrier in transit in thetube O now engages the trip Gr (Fig. 4), just previous to delivering through the valve B causing the G to be thrown upward and momentarily out of contact with contacts G breaking the circuit between wires X and X, thereby denergizing the magnet J and releasin the swing-switch S' and breaking contact 2 and S permanently breaking the circuit through the magnet J. In the meantime the switch S has broken the circuit be- J to cut in or out of operationtween contacts W and W and the motor M has sto ped; the carrier has now discharged throug the valve B at station B;

In despatchinga carrier from station B to station A, the operator opens the valve B and inserts the carrier into the transit tube C. The lock lever B is then closed,the rubber on B thereon engaging with the valve B olding the same tightly seated on the opening of the transmission tube G. The button Y is now pushed closing the battery circuit, energizingthe magnet F, and through bell crank lever F, the latch F now engages the projection B5, on the lock lever B locking the same securely closed. The switch magnet 'J now being energized, closes the motor-controllin or swinging switch S, as heretofore described, throwing the motor into operation. The closing of'the lock lever B through rod E and crank E has shifted the valve E into the position shown in dotted lines Fig. 3

causing the air current to flow through the transit tube C from station B to station A and the carrier is despatched toward station A; when the button Y is released, the cir- 1 cuit is maintained as heretofore by bridgepiece S closing contacts S and S the circuits being identical with those heretofore described. The carrier prior to discharging at station A engages a trip Gr similar to that shown in Figs. 4 and 5, momentarily breaking the circuit, deenergizing the magnet J and through the swing-switch S stopping the motor M. The battery circuit having been broken, the magnet F is deenergized and the latch F, by means of the spring F is thrown back, releasing the lock lever B which allows the valve E to be returned to the normalposition shown in full lines Fig. 3 by means of a spring 13 The carrier has discharged at station A and the valve E is now in position to permit a carrier to be despatched from station A to station B.

Having thus described the nature of my invention and set forth a construction embodying the same, what I claim as new and desire to secure by Letters Patent of the United States is: I

1. In pneumatic despatch tube apparatus, a single tube for the transmission of carriers in either direction provided with an opening for the discharge and insertion of carriers, a valve controlling said opening, a pump c'om 120 municating with said tube, a motor for driving said pump, an air-switch in the communication between the pump and tube for changing the direction of the flow of air in the tube, and mechanism connected with said 12 1 air-switch adapted to be moved into engagement with said valve when the latter is closed and actuated by'the opening of said valve to shift the air-switch to reverse the direction of the flow of air in the tube.

2. In pneumatic despatch tube apparatus, a single tube for the transmission of carriers in either direction provided with an opening for the discharge and insertion of carriers, a valve controlling said opening, a pump communicating with said tube, a motor, for driving said pump, an air-switch normally positioned in the communication between the pump and tube toopen the communication.

to the exhaust side of the (pump, and mecha-- nism adapted to be move into engagement with said valve when the latter is closed and actuated by the opening of said valve to and controlling the opening of. said tube adjacent the connection of said air-pump therewith, a motor adapted tooperate 7 said air pump, means located at both ends of said stations for starting and stopping said motor, valve-locking means located at.

the station adjacent the air pump for locking said valve closed, and mechanism actuated by said valve-locking means for reversing the direction of the air current in said tube for the transmission of carriers in either direction between said stat-ions.

4. In pneumatic despatch tube apparatus, a single tube for the transmission of carriers,

stations located at either end of said tube,an

air pump connected with said tube at one of said stations, a motor adapted to operate said air pump, a valve normally closed and controlling the opening ofsaid tube adjacent the connection of said air pump therewith, air controlling means for normally permitting the transmission of a carrier in one direction through said tube, mechanism adapted to lock said valve and to operate said air controlling means to reverse the current of air in said tube for the transmission of carriers in the opposite direction, and means located at both stations for starting and stopping said motor. I

5. In pneumatic despatch tube apparatus, a single tube for the transmission of carriers in either direction provided with an opening for the discharge and insertion of carriers, a pump communicating with said tube, a motor for driving said pump, an air-switch normally positioned in the communication between the pump and tube to open the tube to the exhaust side of the pump, a valve controlling said opening in the tube and operating to close the same through outsideairpressure while the tube is in communication with the exhaust side of the pump, and

mechanism adapted to be moved into engagement with said-valve when the latter is closed and actuated by the opening of sald valve to shift said air-switch to open to the pressure side of the pump the communication between the pump and tube.

6. In 'a pneumatic despatch tube apparatus, a single tube for the transmission of carriers, a sub-station located atone end of sald tube, a central station located at the other end of said tube, an air pump connected with said tube at said central station and adapted to supply a current of air to said tube, a motor adapted to operate said air pump, means located at said stations for starting and stopping said motor, and mechanism controlling the connection of said air I pump with said tube and adapted to reverse the direction of the current of air through said tube for the transmission of carriers therethrough in either direction.

7. In a pneumatic despatch tube apparatus, a single tube for the transmission of carriers, a sub-station located vat one end of said tube, a central station located at the other end of said' tube, an air pump connected with said tube at said central station and adapted to supply a current of air to said tube, a motor adapted to operate said air pump, means. located at said stations for starting and stopping said motor, and mechanism controlling the connection of said air pump with said tube and adapted to be operated at the central station to reverse the direction of the current of air through said tube for the transmission of carriers therethrough in either direction.

8. In pneumatic despatch tube apparatus, a single tube for the transmission of carriers, a central station located at one end of said tube, a sub-station located at the other end of said tube, an air pump connected with said tube at said'central station and'adapted to supply the current of air to said tube, a motor adapted to operate said air-pump, means at said stations for starting and stopping said motor, a nor'mallyclosed valve located at said central station normally permitting the transmission of a carrier from said substation to said central station, and

locking means adapted to be operated at said central station for locking said valve closed and reversing the current of air through said tube permitting the transmission of a carrier from said central station to said sub.- station.

9. In pneumatic despatch tube apparatus, a single tube for the transmission of carriers, a central station located at one end of said tube, a sub-station located at the other end of said tube, an air pump connected with said tube at said central station and adapted to supply a current of air to said tube, a motor adapted to operate said air pump, means at said stations for starting carriers in either direction provided at each the said'motor, a normally closed valve located at said central station normally permitting the transmission of a carrier from said'sub-station to said central station, lookingmeans adapted to be operated at said central station for locking said valve closed and reversing the current of air through said tube and permitting the transmission of a carrier from said central station to said sub station, and means located adjacent either of said stations adapted to be operated by a carrier in transit thereto for automatically stopping said motor.

10. In pneumatic despatch tube appa-.

tus, the transmission of a single tube for carrlers "In either direction provided with an opening for the discharge and insertion of carriers; a pump communicating with said tube, a motor for driving said pump, an air-switch normally positioned in the communication between the pump and tube to open the tube to the exhaust side of the pump, a valve controlling said opening in the tube and operating to close the same.

through outside air-pressure while the tube is in, communication with the exhaust side of the pump, locking mechanism for securing sald valve closed on said opening, and

' means actuated by the closing movement of said locking mechanism to shift said airswitch to open the communication between the tube and the pressure side of the pump.

11. In pneumatic despatch tube apparatus, a single tubefor the transmission of of said locking mechanism to shift said air-switch to open the communication between the tube and pump to the pressure side of the pump, and carrier-actuated means in the tube for releasing said locking mechanism and the'latter during its openin movement actuating the air-switch shifting means pump to the exhaust side of the pump.

12. In: pneumatic despatch tube apparat-us, a single tube for the transmission of end-with an opening for the discharge and I insertion'otcarriers, a valve controlling the openinget one end of said tube, a pump communicating with said tube at the end to turn the switch to open the communication between the tube and provided with the valve-controlled opening, a motor for driving said pump, an airswitch in the communication between the pump and tube for changing the direct-ion of the flow-of air in the tube, mechanism connected with said air-switch andactuated by the opening of said valve to shift the air-switch to reverse .the direction of the flow of air in the tube,-.and'means located 4 adjacent to the carrier-discharge opening at the other end of the tube operating to con-; trol the opening of said valve.

13. In. pneumatic despatch tube apparat-us, a single tube for the transmission of carriers in either direction provided at each end with an opening for the discharge and insertion of carriers, a valve controlling the opening at one end of said tube, a pump communicating with said tube at the end .provided with the valve-controlled opening,

a motor for driving said pump, an airswitch in the communication between the pump and'tube for changing the direction of the flow of air in the tube, mechanism connected with said air-switch and actuated by the opening of said valve to shift the airswitch to reverse the direction ofthe flow of air in the tube, and carrier actuated means in the other end of said tube adjacent to the carrier-discharge opening therein operating to control the opening of said valve.

14. In pneumatic despatch tube apparatus, a single tube for the transmission of carriers in either direction provided at each end with an opening for the discharge and insertion of carriers, a valve controlling the opening at one end of said tube, a pump communicating with said tube at the end provided with the valve-controlled opening, a motor for driving said pump, an airswi'tch normally positioned in the communi cation between the pump and tube to open the tube to the exhaust side of the pump, locking means for securingsaid valve closed, means actuated by the closing movement of said locking mechanism to shift said airswitch to open the communication between the tube and the pressure side of the pump, and means located' adjacent to the carrierdischarge opening at the other end of the tube operating to control the releasing of said locking mechanism.

15. In pneumatic despatch tube apparatus, a single tube for the transmission of carriers in either direction provided at each end with an opening for the discharge and insertion of carriers, a valve controlling the opening at one end of said tube, a pump communicating with said tube at the end provided with the valve-controlled opening, a motor for driving said pump, an airswitch normally positioned in the communication between the pump and tube to open the tube to the exhaust side of the pump, 1 locking means forsecuring the valve closed,

means actuated by the closing movement of In testimony whereof, I have signed my said locking mechanism to shift said airname to this specification in the presence of 10 switch to open the communication between two subscribing witnesses, this eighteenth the tube and the pressure side of the pump, day of October A. D. 1906.

' and carrier-actuated means in the other end CHESTER S. JENNINGS.

of said tube adjacent to the carrier-dis- Witnesses: charge opening therein operating to control A. R. LARRABEE,

the releasing of said locking mechanism. A. L. MESSER.