US461612A - Pneumatic dispatch-tube - Google Patents
Pneumatic dispatch-tube Download PDFInfo
- Publication number
- US461612A US461612A US461612DA US461612A US 461612 A US461612 A US 461612A US 461612D A US461612D A US 461612DA US 461612 A US461612 A US 461612A
- Authority
- US
- United States
- Prior art keywords
- tube
- pneumatic
- steam
- pneumatic dispatch
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 241000196324 Embryophyta Species 0.000 description 2
- 241000490025 Schefflera digitata Species 0.000 description 2
- 230000001721 combination Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000015250 liver sausages Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
Images
Classifications
-
- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/06—Gas pressure systems operating without fluidisation of the materials
- B65G53/10—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas
- B65G53/14—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas the gas flow inducing feed of the materials by suction effect
Definitions
- Figure l is a side elevation of a system of dispatch-tubes equipped with my impr'ovement; and Fig. 2 is an enlarged view of the discharge end of the pneumatic tube, some parts being broken away.
- a A A represent the floor-levels of a building.
- B, B, O, D, and E represent a system of pneumatic tubes, of the ordinary and wellknown construction.
- F is a steam-supply pipe in communication with a source of steam which enters the pneumatic tube at some convenient point, and has its discharge-nozzle F located in the discharge-section B of the tube.
- the steampipe is provided with a hand-valve f.
- the discharge-section B is preferably contelescoping on the section B and connected with the end of section B by a screw-threaded joint I). This affords a convenient means for connecting and disconnecting the dischargesection and steam-pipe and expansion-chamber from the main pipe, and also affords a means of adapting the discharge-section to different locations or positions of the main pipe with reference to the chimney or stack.
- the com bination with the two fixed sections of the draft-tube,-of the removable connecting section or union 1), telescoping on one of the fixed sections and having a screw-threaded engagement with the other,'substantially as described.
Description
(No Model.)
D HUNTER PNEUMATIC DISPATCH TUBE. v No. 461,612. Patented Oot.Z0,1891.
XM35%/MZ7ZZA fizz. g;
TE s co., mom-um UNITED STATES PATE T- OFFICE;
DAVID HUNTER, OF MINNEAPOLIS, MINNESOTA.-
PNEUMATIC DISPATCH-TUBE.-
SPEGIFICATION forming part Of Letters Patent No. 461,612, dated October 20, 1891.
Application filed May 7, 1891. Serial No. 391,969. (No model.)
To all whom it may concern.-
Be it known that I, DAVID HUNTER, a citizen of the United States, residing at Minne- I have illustrated the application of my in- 'nected with the main tube B by a union'?),
vention in the accompanying drawings, therein likeletters referring to like parts throughout.
Figure l is a side elevation of a system of dispatch-tubes equipped with my impr'ovement; and Fig. 2 is an enlarged view of the discharge end of the pneumatic tube, some parts being broken away.
A A A represent the floor-levels of a building.
B, B, O, D, and E represent a system of pneumatic tubes, of the ordinary and wellknown construction.
F is a steam-supply pipe in communication with a source of steam which enters the pneumatic tube at some convenient point, and has its discharge-nozzle F located in the discharge-section B of the tube. The steampipe is provided with a hand-valve f.
Gis the expansion-chamber, attached to the end of the section B of the pneumatic tube and terminating in the chimney or stack H.
The operat on is evident. The movement of the steam worn the nozzle F through the dischargesectipn B, the expansion-chamber G, and the chimney II will produce a partial vacuum in the other parts of the pneumatic tubes behind the nozzle F. It will be noted that the steam-nozzle F is an ordinary jetnozzle, requiring little or no special fitting and enabling the production of the vacuum by the use of very little steam. By my plan, where steam plants are employed in the building, as is very generally the case, especially in newspaper printing-offices and similar establishments, practically no additional space is required beyond that occupied by the pneumatictube, and the amount of steam consumed to effect and keep up the vacuum is scarcely appreciable on the boiler. By actual usageI have demonstrated the efficiency and economy of this invention.
The discharge-section B is preferably contelescoping on the section B and connected with the end of section B by a screw-threaded joint I). This affords a convenient means for connecting and disconnecting the dischargesection and steam-pipe and expansion-chamber from the main pipe, and also affords a means of adapting the discharge-section to different locations or positions of the main pipe with reference to the chimney or stack.
What I claim, and desire to secure by Letters Patent of the United States, is as follows:
In a pneumatic dispatch system, the com bination, with the two fixed sections of the draft-tube,-of the removable connecting section or union 1), telescoping on one of the fixed sections and having a screw-threaded engagement with the other,'substantially as described.
In testimony whereo flaifix mysignature in presence of two witnesses.
DAVID HUNTER.
Witnesses:
J AS. F. WILLIAMSON, E. F. ELMORE.
Publications (1)
Publication Number | Publication Date |
---|---|
US461612A true US461612A (en) | 1891-10-20 |
Family
ID=2530484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US461612D Expired - Lifetime US461612A (en) | Pneumatic dispatch-tube |
Country Status (1)
Country | Link |
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US (1) | US461612A (en) |
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0
- US US461612D patent/US461612A/en not_active Expired - Lifetime
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