US727138A - Switch-fitting for pneumatic-despatch-tube systems. - Google Patents

Description

PATENTED MAY 5, 1903.

SWW/Wto@ y Henry J .Hert

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H. J. HEBT..

SWITCH PITTIN G FOR PNEUMATIC DESPATGH TUBE SYSTEMS.

ABPLIOATION FILED JAN. s. 190s.

No MODEL.

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wma/cao UNITED VSTATES Patented May 5, 1903.

ATENT FFTCE.

SWITCH-FITTING FOR PNEUMATlC-DESPATCH-IUBE SYSTEMS.

`SIEECIFJIGATION' forming part of v:Letters Patent No. 727,138, dated May 5, 1903.

Application led January 8, 1903. Serial No. 138,241. (No model.)

To a/ZZ whont t may concern,.-

Be it known that I, HENRY J. HEBT, a citizen of the United States, residing at Indianapolis, in the county of' Marion and State of Indiana, have invented certain new and useful Improvements in Switch Fittings for Pneumatic-Despatch-Tube Systems, of which the following is a specification.

The object of my invention is toprovide an automatically operated cut out and switch mechanism for pneumatic-despatch-tube systems, to provide a special form of car to be used in conjunction therewith, to provide means operated by the switch mechanism for preventing a closely-succeeding car from following in the path of the rst car, and to provide such improvements in details of construction as may hereinafter be pointed out.Vv

The accompanying` drawings illustrate my invention.

Figure 1 is a vertical section; Fig. 2, a transverse section on line 2 2 of Fig. 1.

In the drawings, indicates a fitting in which is formed a main or straight passage 11, from which leads a discharge-passage 12. Mounted at the point of junction of the .two

passages 11 and 12 is a switch 13, lsecured at its forward end to shaft 14-that is to say, Y

the rear or free end of the switch projects in' that direction from which the cars 15 come.

Formed in tting 10 above the main passage 1l is a chamber 16, in which is mounted a transverse shaft 17, to which is secured a pair.

of arms 18 and 19, both of which lie Within the chamber 16. Pivoted to arm 18 is one end of a latch 20, which has a toe 21 normally projecting into the line of passage 11, said toe carrying, if desired, a friction-roller 22. Latch 2O also carries a roller 23, which rests upon a cam incline 24, carried by a guideplate 25, pivoted at 26 within chamber 16. The free end of guide-plate is held adjustable by means of a screw 27 passing through slot 28, the free end of guide 25 being adjustable to and from passage 11. ries asupplemental guide incline 29, beneath which the tip 30 of latch 2O may pass so soon as roller 23 is forced up incline 24.

Secured'to the shaft 17 outside of the casing is an arm 31, (shown in dotted lines,) which is connected by a link 32 with an arm 33, secured to the other end of the shaft 14.

Aoutlet 12.

tion.

Guide 25 car- Pivoted to arm 19 is one end of a link 34, the opposite end of which is pivoted to a plunger 35, movable ina guide 36; substantially parallel to the axis of passage 1l. Plunger 35 is provided at its opposite end` with an inclined cam-face 37, engaged by't-he inner end of the plunger 38,-rnou`nted in a guide 39, substantially at, say, forty-jive degrees to the axis of caps, if desired.

In operation-a car being projected through passage-'11 in the direction indicated, with its end 43 foremost, comes into engagement with the roller 22 and forces the latch 2O to the rear, tip 30 catching beneath the supplemental guide 29 and roller 23 rolling up incline 24 to gradually withdraw-roller 22 from engagement with head 43. This forward movement of the latch 20swings arm 18 and shaft 17, so that through arm 31, link 32, and arm 33 switch 13-is thrown upward to the position shown in dotted lines in Fig. 1, this taking place before'the car can pass roller 22, so that the car comes into engagement with the switch 13 and is deiiected by it through the discharge- Thedescribed movement of the shaft 17 swings arm 19 so as to throw plunger 35 to thefposition shown in dotted lines in Fig. 1, thereby projecting plunger 38 into the passage 11 to serve as a detainer for an immediately-succeeding car. As soon as the car has passed 'through the outlet 12 spring 41 serves to return the parts to normal posi- If car 15be introduced into the passage 11 with its head 42 foremost, said head when Vit engages roller 22 serves merely toswing latch 20 about its pivotal connection with arm 18, tip 30 swinging free from the supplemental guide 29,v and the car passes through the main passage 11.

It will be readily understood that instead of the double-headed car shown I may use two sets of cars, both ends of one set being blunt and capable of operating the switch,

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while both ends of the other set will be' tapered, so as to fail to operate the switch.`

I claim as my invention- 1. A switch-fitting for a pneumatic-despatch system having a main-line passage and a branch passage leading therefrom, a switch mounted at said junction, a latch projecting into the main-line passage, means for supporting said latch wherebyit may move transversely from the passage or may move both longitudinally and transversely from the passage, and an intermediate connection between the latch and the switch which will swing the switch into the main-line passage when the latch is moved simultaneously transversely and longitudinally of the main-line passage.

2. A switch -fitting for a pneumatic-despatch systemhavinga main-line passage and a branch passage leading therefrom, a switch mounted at the junction of said passage, a shaft, anA arm carried by said shaft, a latch pivoted at one end to said arm and having its other end projectable into the main-line passage, a guide permitting an independent transverse withdrawal of the latch from the main-line passage or compelling a combined' longitudinal and transverse Withdrawal of the latch with relation to the main-line passage, whereby said movement swings said shaft, and connections between said shaftand switch.

3. A switch-fitting for a pneumatic-despatch system having a main-line passage an d a branch passage leading therefrom, a switch mounted at the junction of said passages, a shaft, an arm carried by said shaft, a latch pivoted at one end to said arm and having its other end projectable into the main-line passage, a guide permitting an independent transverse withdrawal of the latch from the main-line passage or compelling a combined longitudinal and transverse withdrawal of the latch with relation to the main-line passage whereby said movement swings said shaft, connections between said shaft and switch, a plunger projectable into the mainline passage a car length behind the latch, and intermediate connections between said plunger and said shaft for projecting the plunger into the main-line passage when the shaft is swung.

4. A switch-fitting for a pneumatic-despatch-tube system, having the main-line passage 11, a branch 12, switch 13 pivotally mounted at thejunction,ashaft17carryingan arm 18, a latch 2O pivotally connected to said arm and having its other end projectable into the main-line passage 11, guide 25 engaging a portion of the latch, and connections between shaft 17 and the switch, as and for the purpose set forth.

5. In a pneumatic-despatchtube system in which there is a junction consisting in part of a latch capable of substantially direct transverse `displacement and also capable of a switch-throwing movement which is a combined transverse and longitudinal withdrawal, acar having one end tapered to produce the first-mentioned movement of the latch and the other end blunt to produce the second-mentioned movement of the latch.

6. In a switch-itting for a pneumatic-despatch-tube system, the combi/nationvith the switch-operating mechanism, of a plunger inclined inward and rearward with relation tothe line of movement through the system, and connections between the switch inechan ism and plunger, for the purpose set forth.

In witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 6th day of December, A. D. 1902.

HENRY J. HERT. [L 5.]

Witnesses:

ARTHUR M. I-IooD, JAMES A. WALSH.

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