US742516A - Pneumatic-despatch apparatus. - Google Patents

Pneumatic-despatch apparatus. Download PDF

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Publication number
US742516A
US742516A US15906403A US1903159064A US742516A US 742516 A US742516 A US 742516A US 15906403 A US15906403 A US 15906403A US 1903159064 A US1903159064 A US 1903159064A US 742516 A US742516 A US 742516A
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Prior art keywords
cylinder
pressure
source
gate
communication
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US15906403A
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Charles F Stoddard
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AMERICAN PNEUMATIC SERVICE CO
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AMERICAN PNEUMATIC SERVICE CO
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/32—Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
    • A24C5/322—Transporting cigarettes during manufacturing
    • A24C5/323—Transporting cigarettes during manufacturing pneumatically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G51/00—Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
    • B65G51/02—Directly conveying the articles, e.g. slips, sheets, stockings, containers or workpieces, by flowing gases

Definitions

  • My invention relates to new and useful irnprovements in terminals for pneumatic-de- ⁇ spatch apparatus, and especially to such apparatus wherein large carriers are used for the transmissionof mail-matter and merchandise.
  • the object of my invention is to produce a terminal simple in construction and efficient in operation.
  • Figure 1 is a longitudinal section through the terminal with the parts in position to receive a carrier.
  • Fig. 2 is a similar view through the terminal after a carrier has been received and is being discharged.
  • the main transmission-tube A is located in alinement with the compression-chamber A2 of the terminal and beyond the slotted casing A', through which the pressure passes into the return-tube A3.
  • the cylinder D4 Located on the upper side of the compression-chamber A2 is the cylinder D4, connected with the compressionchamber A2 by the pipe C5, and located within said cylinder is the piston D2, connected ⁇ by the rod D3 with the piston-valve D', which in turn is connected by the rod D5 ⁇ to the rod D7 by the beveled joint D5.
  • the rod D7 is pivotally connected tothe nger D8 at E, and this linger D8 swings on the bracket E2, to which it is pivotally connected at E', and this finger Ds normally extends into the path of travel of the discharging carrier, as shown in dotted lines, Fig. 2.
  • the air supplied for operating the inner and outer gates B and B2 in the terminal enters through the pipe C into the valve-casing D and is conveyed into the top of the inner and outer cylinders Bi and B5 by the pipes C C2 and operates the pistons B4 B7, to which are respectively connected the gates B and B2 by the pistonrods B5 and B.
  • the carrier coming into the compression-chamber A2 is brought to a stop by the compression of the air in front of-it as the gate D2 is closed.
  • the finger D8 is moved from the position shown in full lines Fig. 2 to that shown in full lines Fig. l by the carrier which moves the piston-valve from the position shown in Fig. 2 to that shown in Fig. 1, thereby opening the pipe C' to the atmosphereto allow the pressure in it and the cylinder B6 to exhaust to the atmosphere.
  • the pressure from the pipe C then passes through the pipe C2 into the cylinder B5 above the piston B7 and forces it down into the position shown in Fig. 1.
  • the piston B7 reaches the lower end of the cylinder B5 it passes the port P and allows the pressure on the upper side of the piston B7 to pass through the pipe C3 to the under side of the piston B4 in the cylinder B, thereby raising the piston B4 to the position shown in Fig.
  • the pipe C5 connected to the cylinder D4, is for the purpose of balancing the piston D2 when the machine is not in operation.
  • A9 is a suitable buEer to stop the carrier when it reaches the end of the table A4.
  • a transmission-tube a terminal communicating with said tube, an inner and an outer gate closing the same, an inner and an outer cylinder each having a piston connected to said gates, a source of air-pressure for operating said pistons, communication between said cylinders and said source of air-pressu re, a valve for opening and closing said communication to each cylinder alternately, mechanism operated by tho pressure in the tube for normally closing communication between said source of compressed air and the inner cylinder, and a connection between the inner cylinder and the outer cylinder for leading the pressure from the outer cylinder to the inner cylinder to open the inner gate after the outer gate is closed.
  • a transmission-tube communicating with said tube, an inner and an outer gate closing the same, an inner and an outercyliuder each having a piston connected to said gates, a source of air-pressure for operating said pistons, communication between said cylinders and said source of air-pressure, a valve for opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normally closing commu nication between said source of compressed air and the inner cylinder, and connections between said cylinders for leading the pressure therefrom alternately to one another.
  • a transmission-tube communicating with said tube, an inner and an outer gate closing the same, an inner and an outer cylinder each having a piston connected to said gates, a source of air-pressure for operating said pistons, communication between y said cylinders and said source otair-pressure,
  • valve for opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normallyclosing communication between said source of compressed air and the inner cylinder, mechanism operated by air compressed by the carrier for operating said valve to open communication between said source of compressed air and the inner cylinder to close the inner gate and to close communication between said source of compressed air and the outer cylinder to open the outer gate, and a connection between the inner cylinder and the outer cylinder for leading the pressure from the inner cylinder to the outer cylinder after the inner gate is closed to open the outer gate.
  • a transmission-tube a terminal communicating with said tube, an inner and an outer gate closing the same, au inner and an outer cylindereach having apiston connected to said gates, a source of air-pressure for operating said pistons, communication between said cylinders and said source of air-pressure, a valve for opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normally closing communication between said source of compressed air and the inner cylinder, mechanism operated by air compressed bythe carrierl for operating said Valve to open communication between said source of compressed air and the inner cylinder to close the inner gate and to close communication between said source of compressed air and the outer cylinder to open the outer gate, a connection between the inner cylinder and the outer cylinder for leading the pressure from the inner cylinder to the outer cylinder after the inner gate is closed to open the outer gate, and a connection between the outer cylinder and the inner cylinder for leading the pressure from said outer cylinder to said inner cylinder after the outer gate is closed to open the inner gate.
  • an inner and an outer cylinder each having a piston connected to said gates, a source of air-pressure for operating said pistons, communication between said cylinders and 'said source of airpressure, a valve tor opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normally closing communication between said source of compressed air and the inner cylinder, mechanism operated by air compressed by the carrier for'operating said valve to open communication between said source of compressed air andthe inner cylinder to close the inner gate and to close communication between said source of compressed air and the outer cylinder to open the outer connection between the inner cylinder and the outer cylinder for leading the pressure from the inner cylinder to the outer cylinder after the inner gate is closed to open the outer gate, thesaid inner gate having an opening through which pressure passes and drives the carrier from the terminal.
  • a transmission-tube a terminal communicating with said tube, an inner and an outer gate closing the same, an inner and an outer cylinder each having a piston connected to said gates, a source of air-pressure for operating said pistons, communication between said cylinders and said source of airpressure, a valve for opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normally closing communication between said source of compressed air and the inner cylinder, connections between said cylinders for leading the pressure therefrom alternately to one another, and mechanism operated by the carrier leaving the terminal for operating said valve to open the inner gate and close the outer gate.
  • a transmission-tube a terminal communicating with said tube, an inner gate and an outer gate closing the terminal, an inner and an outer cylinder each having a piston connected to said gates, a source of air-pressure for operating the piston to close the gates, communication between said cylinders and said source of air-pressure,'a valve for opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normally closing communication between said source of compressed air and the inner cylinder, mechanism operated by air compressed by the carrier for operating said valve to open communication between said source of compressed air and the inner cylinder t0 close the inner gate and to close communication between said source of compressed air and the outer cylinder, and connections between the inner and the outer cylinders for leading the pressure alternately from one cylinder to another for alternately opening said gates.

Description

No. 742,516. PATENTBD 00127, 1903.'-
0. F.-S'I,'0,DDARD-. l v PNEUMATIC DBSPATCH APPARATUS. APPLIdATm FILED Muga, 1903.
WIT NESQSES v Y I VEN-TOR. y @xm mam 1,( WCM f 'ATTORNE ,L
No. P)712516. p
UNITED STATES CHARLES F.'STODDARD, OF
Tatented October 27, 1903i.
nosToN, MASSACHUSETTS, ASSIGNOR To AMERICAN PNEUMATIC SERVICE COMPANY, OF DOVER, DELAWARE, A CORPORATION OF DELAWARE.
PN EU MATlC-DESPATCH APPARATUS.
sPE'crmcA'rIoN forming part of 'Letras Patent No. 742,516, @atta october 2v, 190e. Application tiled May 28,1903. Serial No. 159,064. (No model.)
To all. whom it may concern:
Be it known that I, CHARLES F. STODDARD, of Boston, in the county of Suolk and State of Massachusetts, have invented certain new and useful Improvements in Pneumatic-Despatch Apparatus, of which the following is a specification.
My invention relates to new and useful irnprovements in terminals for pneumatic-de-` spatch apparatus, and especially to such apparatus wherein large carriers are used for the transmissionof mail-matter and merchandise.
The object of my invention is to produce a terminal simple in construction and efficient in operation.
My invention consists of certain novel features hereinafter described, and particularly pointed out in the claims.
In the accompanying drawings, which illustrate a construction embodying my invention, Figure 1 is a longitudinal section through the terminal with the parts in position to receive a carrier. Fig. 2 is a similar view through the terminal after a carrier has been received and is being discharged.
Like letters of reference refer to like parts throughout the views. v
The main transmission-tube A is located in alinement with the compression-chamber A2 of the terminal and beyond the slotted casing A', through which the pressure passes into the return-tube A3. Located on the upper side of the compression-chamber A2 is the cylinder D4, connected with the compressionchamber A2 by the pipe C5, and located within said cylinder is the piston D2, connected `by the rod D3 with the piston-valve D', which in turn is connected by the rod D5`to the rod D7 by the beveled joint D5. The rod D7 is pivotally connected tothe nger D8 at E, and this linger D8 swings on the bracket E2, to which it is pivotally connected at E', and this finger Ds normally extends into the path of travel of the discharging carrier, as shown in dotted lines, Fig. 2. The air supplied for operating the inner and outer gates B and B2 in the terminal enters through the pipe C into the valve-casing D and is conveyed into the top of the inner and outer cylinders Bi and B5 by the pipes C C2 and operates the pistons B4 B7, to which are respectively connected the gates B and B2 by the pistonrods B5 and B. The carrier coming into the compression-chamber A2 is brought to a stop by the compression of the air in front of-it as the gate D2 is closed.
This pressure passes by the pipe C6 into the cylinder D4 and forces the piston D2 to the left of the cylinder D4,'as shown in Fig. 2. This movement of the piston D2 moves the piston-valveD from the position shown in Fig. 1 to that shown in Fig. 2 and also brings the iinger down into the position shown in fulllines, Fig. 2. v The air-supply entering the valve-casing D through the pipe C then passes through the pipe C, then passes through the pipe C' to the upper side of the piston B4 in the cylinder B5, and closes the gate B. As the piston'B4 reaches the' lower end of the cylinderV B(3 it passes the port P, which admits the pressure to the under side of the piston B7 in the cylinder B5 through the pipe C4. This pressure raises the`piston B7 to the upper end of the cylinder B5, causing the raising of the gate B2, which is connected to the piston B7 by the rod B. Aportion of the pressure from theline A passes through the port P2 in the gate B into the chamber A2 back of the carrier and forces the carrier out of the chamber' A2 ont'o the table A4. In this position of the parts; Fig. 2, the linger B2 is in the path of the carrier,which strikes it as it comes onto the table A4 after it has passed the outer gate B2. The finger D8 is moved from the position shown in full lines Fig. 2 to that shown in full lines Fig. l by the carrier which moves the piston-valve from the position shown in Fig. 2 to that shown in Fig. 1, thereby opening the pipe C' to the atmosphereto allow the pressure in it and the cylinder B6 to exhaust to the atmosphere. The pressure from the pipe C then passes through the pipe C2 into the cylinder B5 above the piston B7 and forces it down into the position shown in Fig. 1. As the piston B7 reaches the lower end of the cylinder B5 it passes the port P and allows the pressure on the upper side of the piston B7 to pass through the pipe C3 to the under side of the piston B4 in the cylinder B, thereby raising the piston B4 to the position shown in Fig. l, which places the apparatus in position to receive another carrier. The pipe C5, connected to the cylinder D4, is for the purpose of balancing the piston D2 when the machine is not in operation. A9 is a suitable buEer to stop the carrier when it reaches the end of the table A4.
I do not limit myself to the arrangement and construction shown, as the same may be varied without departing from the spirit of my invention.
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-
1. In au apparatus of the character described, a transmission-tube, a terminal communicating with said tube, an inner and an outer gate closing the same, an inner and an outer cylinder each having a piston connected to said gates, a source of air-pressure for operating said pistons, communication between said cylinders and said source of air-pressu re, a valve for opening and closing said communication to each cylinder alternately, mechanism operated by tho pressure in the tube for normally closing communication between said source of compressed air and the inner cylinder, and a connection between the inner cylinder and the outer cylinder for leading the pressure from the outer cylinder to the inner cylinder to open the inner gate after the outer gate is closed.
2. In an apparatus of the character described, a transmission-tube, a terminal com-,
municating with said tube, an inner and an outer gate closing the same, an inner and an outer cylinder each having a piston connected to said gates, a source of air-pressure for operating said pistons, communication between said cylinders and said source of air-pressure, a valve for opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normally closing communication between said source of com pressed air and the inner cylinder, mechanism operated by air compressed by the carrier for operating said valve to open communication between said source of compressed air and the inner cylinder to close the inner gate and to close communication between said source of compressed air and the outer cylinder to open the outer gate, and a connect-ion between the inner cylinder and the outer cylinder for leading the pressure from the outer cylinder' to the inner cylinder to open the inner gate after the outer gate is closed.
3. In an apparatus of the character described, a transmission-tube, a terminal communicating with said tube, an inner and an outer gate closing the same, an inner and an outercyliuder each having a piston connected to said gates, a source of air-pressure for operating said pistons, communication between said cylinders and said source of air-pressure, a valve for opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normally closing commu nication between said source of compressed air and the inner cylinder, and connections between said cylinders for leading the pressure therefrom alternately to one another.
4. In an apparatus of the character described, a transmission-tube, a terminal communicating with said tube, an inner and an outer gate closing the same, an inner and an outer cylinder each having a piston connected to said gates, a source of air-pressure for operating said pistons, communication between y said cylinders and said source otair-pressure,
a valve for opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normallyclosing communication between said source of compressed air and the inner cylinder, mechanism operated by air compressed by the carrier for operating said valve to open communication between said source of compressed air and the inner cylinder to close the inner gate and to close communication between said source of compressed air and the outer cylinder to open the outer gate, and a connection between the inner cylinder and the outer cylinder for leading the pressure from the inner cylinder to the outer cylinder after the inner gate is closed to open the outer gate.
5. In an apparatus of the character described, a transmission-tube, a terminal communicating with said tube, an inner and an outer gate closing the same, au inner and an outer cylindereach having apiston connected to said gates, a source of air-pressure for operating said pistons, communication between said cylinders and said source of air-pressure, a valve for opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normally closing communication between said source of compressed air and the inner cylinder, mechanism operated by air compressed bythe carrierl for operating said Valve to open communication between said source of compressed air and the inner cylinder to close the inner gate and to close communication between said source of compressed air and the outer cylinder to open the outer gate, a connection between the inner cylinder and the outer cylinder for leading the pressure from the inner cylinder to the outer cylinder after the inner gate is closed to open the outer gate, and a connection between the outer cylinder and the inner cylinder for leading the pressure from said outer cylinder to said inner cylinder after the outer gate is closed to open the inner gate.
6. In an apparatus of the character described, a transmission-tube, a terminal coinmunicating with said tube, an inner and an IOO IIO
. gate, and a outer gate closing Ithe same, an inner and an outer cylinder each having a piston connected to said gates, a source of air-pressure for operating said pistons, communication between said cylinders and 'said source of airpressure, a valve tor opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normally closing communication between said source of compressed air and the inner cylinder, mechanism operated by air compressed by the carrier for'operating said valve to open communication between said source of compressed air andthe inner cylinder to close the inner gate and to close communication between said source of compressed air and the outer cylinder to open the outer connection between the inner cylinder and the outer cylinder for leading the pressure from the inner cylinder to the outer cylinder after the inner gate is closed to open the outer gate, thesaid inner gate having an opening through which pressure passes and drives the carrier from the terminal.
7. In an apparatus of the character described, a transmission-tube, a terminal communicating with said tube, an inner and an outer gate closing the same, an inner and an outer cylinder each having a piston connected to said gates, a source of air-pressure for operating said pistons, communication between said cylinders and said source of airpressure, a valve for opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normally closing communication between said source of compressed air and the inner cylinder, connections between said cylinders for leading the pressure therefrom alternately to one another, and mechanism operated by the carrier leaving the terminal for operating said valve to open the inner gate and close the outer gate.
8. In an apparatus of the character described, a transmission-tube, a terminal communicating with said tube, an inner gate and an outer gate closing the terminal, an inner and an outer cylinder each having a piston connected to said gates, a source of air-pressure for operating the piston to close the gates, communication between said cylinders and said source of air-pressure,'a valve for opening and closing said communication to each cylinder alternately, mechanism operated by the pressure in the tube for normally closing communication between said source of compressed air and the inner cylinder, mechanism operated by air compressed by the carrier for operating said valve to open communication between said source of compressed air and the inner cylinder t0 close the inner gate and to close communication between said source of compressed air and the outer cylinder, and connections between the inner and the outer cylinders for leading the pressure alternately from one cylinder to another for alternately opening said gates.'
In testimony whereof I have signed my name to this speciiication, in the presence of two subscribing witnesses, this 21st day of May, A. D. 1903.
CHARLES F. sToDDARD.
Witnesses:
A. L. MESSER, A. R. LARRABEE.
US15906403A 1903-05-28 1903-05-28 Pneumatic-despatch apparatus. Expired - Lifetime US742516A (en)

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