US747124A

US747124A - Pneumatic elevator.

Info

Publication number: US747124A
Application number: US11081402A
Authority: US
Inventors: Chester Bradford
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-06-09
Filing date: 1902-06-09
Publication date: 1903-12-15
Anticipated expiration: 1920-12-15

Description

No. 747,124. PATENTED DEC. 15, 1903. a. BRADFORD.

PNEUMATIG ELEVATOR.-

APPLIOATION FILED JUNE 9 1902. H0 MODEL. 2 SHEETS-SHEET 1.

WITNESSES:

No. 747,124. PATENTED DEC. 15, 1903.

v 0. BRADFORD.

PNEUMATIC ELEVATOR.

APPLIOATION FILED JUNE 9 1902 no MODEL. 2 SHEETS-SHEET 2.

THE uoams anus cg; moTa-uruafwmrimumm 0.1:.

Patented December 15, 1903. A

CHESTER BRADFORD, OF INDIANAPOLIS, INDIANA.

Paco [VIATIC ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 747,124, dated December 15, 1903. Application filed June 9. 1902. Serial No. 110,814. (No model.)

To all whom, it may concern:

Be it known that I, CHESTER BRADFORD, 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 Pneumatic Elevators, of which the following is a specification.

My present invention relates particularly to that class of pneumatic elevators which is shown and described in detail in Letters Patent of the United States No. 623,109, issued April 11, 1899, to The Pneumatic Elevator and Weigher Company upon the application of James B. Schuman; and it mainly consists in an improved form of telescopic elbow which replaces the sectional jointed elbow shown and described in said Letters Patent and in suitable means for supporting, attaching, and operating the same and for connecting the adjacent parts thereto, all as will be hereinafter more particularly described and claimed.

Referring to the accompanying drawings, which are made a part hereof, and on which similar reference characters indicate similar parts, Figure 1 is a perspective view of amachine of the character in question mounted on a separator or threshing-machine ready for use and embodying my said invention; Fig. 2, a side elevation of the telescopic elbow and immediately adjacent parts, showing the position of said parts when the vertical and horizontal pipes stand at right angles with each other; Fig. 3, a top or plain view thereof, the mast being shown in section and the parts carried by the upper ends of the mast therefore omitted; Fig. 4, a central vertical sectional view as seen when looking in the direction indicated by the arrows from the dotted line 4 4 in Fig. 3; andFigs. 5, 6, and 7, transverse vertical sectional views as seen when looking in the directions indicated by the arrows from the dotted lines 5 5,6 6', and 7 7, respectively, in Figs. 2 and 4.

The machine as a whole, consisting of the fan and throwing-wheel housing H, the standpipeP, mast M, and the turn-table telescope T, (having separating-head 8,) weigher W, and bagger B, are, generally speaking, similar to those shown and described in the Schu man patent, No. 623,109, above referred to, and will not, therefore, be further described herein, except incidentally in describing said invention. Said machine is shown as connected to the threshing-machine or separator by means of the connecting-irons (generally known as slings and braces) 1,2, 3, 4, 5, 5, 6, 7, 8, 9, and 10,- by means of which the strong and rigid support desirable for a machine of this character is secured.

The telescopic elbow is composed of two

sections

145 and 146, each of which. is preferably slightly more than one-eighth of a circle and one of which is enough larger than the other to slip over and inclose it. The lower and smaller one, 146, is provided with suitable ears, through which bolts 24 extend, and thus connect said elbow-section tothe turn-table, which turn-table is composed of the

parts

141 and 142 and rests-and revolves in the turntable track or ring 147, which in the arrangement shown is rigidly supported by the

braces

8, 9, 10, and 11 from the'separator or machine to which the machine embodying this invention is attached. The turn-table part 141 has a socket for the mast M and receives one half the stand-pipe P. The turn-table half 142 receives the other half of the pipe P (said two turn-table parts being bolted together) and also has arms a, carrying the pivot-rod 1", upon which the swinging frame 90 is mounted and which also passes through the end of the forked stay orbrace 95,which runsthence up to the mast M and is clamped to the strict 18, the adjacent portions of said'stay or brace and said strut being in the form of clamp-halves and being secured together and onto the mast by bolts25. The upper telescopic elbow-sea tion 145 is also provided with ears and is connected to the swinging frame 90 by bolts 26, which extend from the ears on said part 145 to similar suitable ears on said part 90. The

lower telescopic section being thus securely attached to the turn-table and the upper telescopic section being thus securely attached to the swinging frame and the parts being brought into the relation shown, with the swinging frame and parts carried thereby mounted on the pivot-rod 7', said elbow part 145 will telescope over the elbow part 146 as the frame 90 swings on its pivot-rod and as the parts carried by said frame 90 are raised and lowered. The swinging frame 90 is in the main composed of a ring-like body and two legs extending down therefrom to the pivot-rod r, by which they are supported, and two arms extending upwardly, in which the winding-spool 143 is mounted. One of these last-mentioned arms 91 is removable, being secured to a suitable stub-arm by a bolt 27. Upon a suitable ear on one side of the body of the swinging frame 90 is the stop for the winding-drum, said stop having a hole therein of a form to fit one of the-ends of the spool 143, where it is arranged to receive a crank by which it is to be turned.

That portion of the machine beyond and carried by the swinging frame 90 is generally denominated the telescope and includes, among other things, a track-frame, (commonly composed of T-bars,) two bars of which enter suitable openings in this frame 90, provided therefor, as shown, and two telescopic conductor-

pipes

28 and 29, one of which, 28, carries the separating and weighing devices upon its outer end and the other of which, 29, is connected to the swinging frame 90 by means of bolts 30, connecting a ring 92 on the end of said pipe 29 thereto.

The portion of the machine carried at one end by the swinging frame 90 is carried at the other end by suitable tackle running to the top of the'mast, as shown, and the extending and retracting or telescoping of said portion is effected by a cord 50, the ends of which wind upon the spool 143,'said spool being carried by upwardly-projecting arms on the swinging frame 90, as before described.

By means of the construction described I am able to provide in a machine of this character an elbow construction which is simple, durable, and easily manipulated and one in which when the parts become worn out they may be easily and quickly replaced by any one and in the field as well as in the shop, it being only necessary to remove the bolts 26 when it is desired to take out the elbow-section 145 and only necessary to remove the bolts 24 when it is desired to take out the elbow-section 146, after which other similar sections can be put in place and secured by the same or similar bolts. Similarly if it is desired to detach the inner telescopic conductor-pipe 29 from the swinging frame 90 it may be done by removing the bolts 30, as will be readily understood. No cutting of parts, riveting, or other machine work is therefore necessary in removing, renewing, or replacing any of these parts. The arms a, forked stay-brace 95, and the trussed mast furnish a strong, rigid, and well-connected support for the swinging frame 90 and the telescopic structure carried thereby.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, in a pneumaticelevator, of two conductor portions one of which extends from and forms a continuationof the other but at 'an angle therewith whereby a change of direction is secured, a telescopic elbow composed of two portions and uniting said two conductor portions whereby the angle between them may be varied, a turntable carrying one elbow portion, a swinging frame pivotally mounted on said turn-table and carrying the other elbow portion and also carrying the conductor portion which is adapted to be varied in position, a trussed mast extending up from said turntable, a stay-brace extending from the mast-truss strut to the turn-table arms, and a tackle running from said mast to and supporting the conductor portion carried by the swinging frame.

2. The combination, in a pneumatic elevator, of two conductor portions one of which extends upwardly from the point where the material is received and the other of which extends outwardly therefrom, a turn-table at the upper end of the upwardly-extending portion, an elbow portion detachably connected to said turn-table, a swinging frame pivotally mounted on said turn-table,another elbow portion detachably secured to one side of said swinging frame, and the outwardlyextending conductor portion connected to the other side of said swinging frame.

3. The combination, in a pneumatic elevator, of two conductor portions, a turn-table, a swinging frame mounted on suitable arms on the tn rn-table, a trussed mast also carried by the turn-table,a stay-brace extending from said mast to the turn-table arms, and a twopart telescopic elbow forming the connection between the conductor portions, one of said elbow portions being carried by said turn-table and the other by said swinging frame, and each of said elbow portions being detachable.

4. The combination, in a pneumatic elevator, of two conductor portions one of which is telescopic, a turn-table carrying one of said conductor portions, a swinging frame pivotally mounted on arms on said turn-table and carrying the other conductor portion, said swinging frame being also provided with upwardly-extending arms forming bearings for the winding-spool for operating the telescopic portion, said Winding-spool and a stop for said winding-spool pivoted to said swinging frame.

5. The combination, in a pneumatic elevator, of two conductor portions one of which is telescopic, a turn-table carrying one of said conductorportions,aswinging frame mounted with shoulders on both ends While remaining on the turn-table and carrying the telescopic an integral structure and stillbe adapted to conductor portion, a suitable tackle for operbe conveniently mounted and dismounted.

ating said telescopic conductor portion, a In Witness whereof I have hereunto set my 5 windingspool for Winding said tackle; and hand and seal, at Indianapolis, Indiana, this I5 arms on said swinging frame for carrying 3d day of June, A. D. 1902.

said spool, one of said arms being divided CHESTER BRADFORD. [1b. 3.] into a stub-arm and a removable part and Witnesses: adapted to be connected together by a bolt, JAMES A. WALSH,

10 whereby the winding-spool may be provided ARTHUR M. HOOD.