US1398408A - Pump - Google Patents

Description

A. B. AND A. voGE-s.

PUMP.

APPucATloN FILED DEc.9. 1920.

Patented NOV. 29, 1921..

AUGUST B. VOGES AND ANTHONY VOGES, l' GIN'CUNATI, frrfl't v y e To all whom t may concern:

-Be it known that we, AUGUs'r B. Voces andArrrHoNr Voces, citizens of the United States, residing at Cincinnati, in the 'county of Hamilton and State of Ohio, have invented certain new and'useful Improvements in Pumps, of which the following is a specification.

Our invention relates tofpumps, and more especially to pneumatic-tire pumps. lts ob- 'ject is to provide for either single or double action of the pump, in a simple manner; and 1n general to simplify the construction of pumps of this character, especiall 1n the inlet and outlet valves thereof.. t. er objects will appear inA the course of the ensuing description. 4 v

We attairr these objects by the device illustrated', for example, in the accompanying drawing, in which- Figure 1 is a sectional' front elevation of the pump, the lower part being in section on a vertical plane on the pump center line;

Fig.A 2 is a sectionalsideelevation of the pump, the lower part being 1n section on a vertical plane at right angles to that of Fig.

' 1, on the center line, and the upper part of the pump also being partly in section in the same plane as that of the bottom section 1n. .this view;

Fig. 3 is a partial plan view, enlarged, with the handle and its fastenings omitted, showing the upper inlet-valve construction,

. with the parts in position for double action of the pump;'

Fig. 4E is a similar view, with the parts in yposition for single action; t Fig. 5is a partial vertical section of upper parts of the pump, on a. plane correspondingto the line 5-5 oi Fig. and

Fig. 6 is a detail perspective vlew of the upper inlet-valve assembly, part of the handle being omitted.- l y The base 1 comprises the hub 2 flanked by foot-plates 3, preferablyl corrugated as 1ndicated. The'hub 2 lies entlrely above the bottom surfaces of the foot-plates, with a bottom cavity 4 and a top cavity 5, separated by the partition 6 across the hub, which thus I 50.

` the shell 7 of which has its lower end forms the lower head of the pump cylinder,

. crewed into the top cavity 5. of the base hub.

l The lower-inlet valve comprises the disk 8 with a depending stem 9 at the center of Specification of Letters Patent.

Patented New 12,1921.'

Application lled December 9, 1920. Serial Ho. 429,396.

its lower side, and preferabl with a boss 10 centrallyof its top, reinorcin the disk and stem junction. A. washer 11 as a central opening through which the stem 9 extends down, with the Washer 11 close against the under :face of the disk 8, to which 1t may be held either merely by the tightness of iit of the stem 9 in its opening, or by cementin er other additional fastening.- The partltion 6 of the base hub has the central hole 12, through which the valve-stem 9 slidingly extends; andA a 'pin 13 passes through lthe lower end part of the stem 9, far enough down to. permit the disk 8 and its washer 11 to rise some distance from the upper face of the partition 6, but'not to escape entirely' f therefrom. At opposlte sides of the stemreceiving hole. 12, the'partition. 6 has inletI holes orv portslt, closed by the washer 11 when the latter is against' the upper face of the partition 6, but opened'as the washer 11 rises.l As shown, the cylinder-shell 7 does not reach to the bottom of the cavity 5; vand the disk 8 andwasher 11 are of considerably less diameter than `the cavity, so that they have ample room for the sllght up and down movement required.

- At the front, the'basehub 2 has a tapped opening through its wall, into this space lett between the bottom of the shell .7 and bottom of the cavity 5. rlhe lower outlet valve comprises the 'nipple 15 screwed into the tapped base opening, with an enlargement 16 forming a shoulder coniining a gasket 17 against the outside of the wall around the tapped opening. The other end part of this nipple 15 is a smooth extension 18"'with is a counter-bore that receives the extension 18 of the nipple 15 snugly, with the inner end of 'the section 21 fitting closely against the outer shoulder 19 of the nipple 15. rllhe connection-nipple 23 extends up from the top ot the outer section 21, with a connection-head 24 at its top, with a passage down into the passage of the valve-body outer section 21; this passage opening upwardly into a counter-bore 25 in the top of the con-` nection-head 24, which'latter 1s externally threaded.

The movable valve-element is a ball 26 I materially less in diameter than the larger part of'jthe passage of the'nipple 15, to seat against the shoulder-er seat and is held in this part of the passage by upsetting slight opposite 4parts 27 of., the rim of the end of the nipple extension 18 before the valve-bodyv outer section 21 is tted onto this extension as just described. Then this section is `thus fitted on; upon which the extension passage alines wit the passage of the section 21 and becomes practlcally continuous therewith horizontally. These parts may be held togetherby the tightness of fit of the nipple extension 18 in the countery. bore of the section 21; or they may be brazed shell 7 screwed into its lower end part, but,

not entirely to the under side of its top 29. On the up er side of this top 29 is the hub 30, centrali; thereof, with opposite flat lsides 31 for engagementin screwin the head 28 onto the cylinder-shell 7. T is (pump-top 29 has the relatively large tappe opening 32 centrally through it and its hub 30.

- The upper inlet-valve comprises the disk 33 with a central opening) 34, and a Washer 35 with alike central opening 36, and with peri heral recesses 37 substantially diametrica y op osite on a line substantially at right ang esto a radius of the disk and washer on which is located an upstanding handle-element-38, the bottom of which extends through the washer 35 and is fixed, as by rivetin or soldering, in the disk 33, about half-way rom the central openings 34 and 36 out to the peripheries of the disk and washer, Vand holding these together with the washer 35 close against the upper face of the disk, concentric therewith. This washer may be additionally held by cementing -or otherwise fastening to the disk 33. 1t will thus cover the upper face of the disk, except where it has the recesses or openings 37. The pump-to 28 has, preferably symmetrical to one of t e curved'sides of the hub 30, and with `its inner edge substantially coincident face of the hub 30 has upright grooves 40 yand 41respectively, adapted to receive the handle element 38jloosely but retentively.

The lower gland 42 comprises a head 43,

a short smooth body 44, and a reduced end part 45, externally threaded to screwT into the tapped opening 32 of the pump-top 28, with the end of the body 44, which is concentric with the endpart 45, 4forming a shoulder; so that this gland, when its end part 45 is screwed into the lower end part of the opening 32, will bring its shoulder up against'the under surface of the top 29, ti htly holding the gland in position, into wich it is screwed by the aid of radial slots 46 v'in its liead 43. Tt has a smooth central bore lentirely through it from head to upper end; and its smooth body 44 is slightly less in diameter than the central openings 34 and 36 of the disk and washer, 33 and 35, respectively, through which it extends, so that the head 43 holdsthese up, permitting them to move up and down together, slightly, so the washer 35 can press against the under surface. ofthe top 29, as just stated, or drop slightly therefrom. Also, this disk and washer' assembly, with its handle-element 38, can turn on the lower gland 42, within the limits of movement of the element 38 in the slot 39; and it can be held at either end of its movement by engagement of the handle-element in one or the other of the grooves 40 and 41, into or out of which the element 38 can spring, due to its own resiliency and that ofthe disk 33.

At opposite sides of the pump-head 28, down' through its top 29, are the inlet-holes or ports 47 ,fso positioned, relatively to the slot 39, that when the' handle-element 38 is at one end of the slot, as in Fig. 3, the peripheral recesses or openings 37 of the washer 35 are removed a considerable distance from these holes 47, but when the handle-element 38 is at .the opposite end of the slot 39, the recesses or openings 37 register with the holes- 47 asin Fig; 4. The handle-element 38 is preferably of heavy7 wire; and its uper part is bent forwardly, forming a small andle 48.

The upper outlet-valve connects through a tapped opening in the wall of the head 28, within the space left above the upperend of the cylinder-shell 7 and the under side of the head-top 29. Its construction is v preferably simi a valve, before described; comprising the nipple 15, with enlargement 16, gasket 17, extension. 18, seat 20 interiorly, and ball 26 v in the enlargement of its passage, held by r to-that of the lower outlet ioo incarica the slight parts 27. The outer section 21 di'ers from the lower-valve outer section 21 in having merely the bore lin its inner end, not opening through its outer end, and having` the downward passage into the connecting-pipe 49; the inner end of thesection 21 having the counter-bore to receive the nipple extension 18 and fit against the nipple shoulder 19, as fully described for the lower outlet valve, previously. These parts may l be fastened together as there stated.

'the upper valve assembly,

The connecting-pipe 49 extends down alongside the pump-cylinder, with its lower end entering the counter-bore 25 of the connection-head 24, with a gasket 50 thereon, and held by a cap-nut 51, around the pipel and screwing down over the external threads. of the connection-head 24. These parts are assembled by swinging them sidewise, as is permitted by the nipples 15 turning in their tapped openings in the base-hub 2 and head' 28, far enough to permit the pipe 49 to enter the counter-bore 25; with the cap-nut 51 slid up in the pipe 49, out-of the way, to be then slid down and screwed in place, when the pipe 49 and connection-nipple 23 have become alined. Any suitable connection-hose 52 can be slipped onto the hose-nipple 22, as usual with pumps of this kind.

The lunger comprises the middle disk 53, Hanketf) by the upwardly and downwardly opening cup-washers 54 and 55, respectively, and the upper and lower disks 56 and 57, respectively, tting into the respective cupwashers; with the plunger-rod 58 having its lower reduced end part 59 through the disks and washers, and a nut 59 screwed on it therebelow, holding these plunger parts up against the shoulder 60 where the reduced part joins the larger main part of the rod 58. rlhe latter extends up through the gland 42 and the tapped opening 32 of the pumphead 28, with packing 6l around it in the opening 32 above the land 42; and the upper gland 62 is screwe down into the upper end of this tapped opening 32, compressing the packing around the rod, as is well known in stun boxes. The upper end part 63 of the rod, a ove the gland 6 2, is reduced, with the transverse handle 64 slipped onto it, between a lower and upper washer, with a .nut 65 screwed on the part 63, confining the handle 64 to the rod, as is well known in pumps. A sprin 66 (Fig. 1) around the plungerrod 58,-inside the cylinder, abovet e pluner, cushions the stoppage of the plunger on t e up-stroke, as isa so well known in pumps.

lPulling up the plunger forces air, against res'sing the washer 35 to the under face o? the, top 29, and forces the ball 26 away from its seat; the air thus being forced down through the pipe 49 and out into the hose 52, to whatever a6 he h ose leads to.. This will happen if the disk\ 33 and washer 35 are turned as in Fig. 3, with the recesses 37 out of register with the holes 47. But if turned so these register, as in Fig. 4, the air will escape around the edges of the disk 33 and through the registering recesses and holes; so that there will thus be no pumping action by thisend of the pump. Downward pushing of the plun er will always pump; because the-lower-va ve disk 8 and its washer 11 always tend to seat, by gravity, with the washer closing the holes 14, and the pressure of the air, under the descending plunger, tightens this closure. The air is forced out past the lower valve-ball 26 and directly into the hose 52. When the plunger is pulled up, atmos heric air raises the disk 8 and washer 11, glling the space under the ascending plunger. Similarly, on descent of the plunger, with the upper end of the pump operating, air forces the disk 33 andwasher 35 down, in addition to the tendency of these to fall, by gravity. Rendering the upper end of the pump inoperative, z'. e., making the pump single-acting instead of double-acting, is useful in a tire-pump, for instance, after the operator has become tired and the pressure in the tire has risen, so that double-action of the ump is unduly irksome, or impossible, fort e operator. A simple shifting of the handle 48 as before described, renders the pump either single or double acting, as the operator may require under these conditions, or for any other reason for changing from one to the other` mode of operation.

lt will be understood that the disks 11 and 35 are of leather or other suitable material usually einployedin cups, washers or gaskets, in this kind of pumps. Likewise with the plunger cups, and the gaskets and packin before referred to.

t is highly desirable to bake enamel on these pumps, and to have them as nearly completely assembled as possible when this is done, while not having the leather or similarly composed parts in the pump, to be burned in the baking. Our construction and arrangement is especiall adapted to facilitate this; the outlet-va ve parts being entirely of metal, except the small .gaskets .17, damage to which will be ne ligible during the bak'ng, and the inlet va ve parts being readily inserted, with their combustible l then separated for insertion of the inletvalve and plunger-constructions as before described. The lower inlet-valve structure, the disk 8 with its stern, and the washer l1 slipped or cemented thereon, can be dropped in from the top of the cylinder-shell 7 and positioned by inserting a long instrument from said top; thus obviating disconnection of the shell 7 from the base l for this insertion, after enameling those parts.

The opening 32, receiving the lower and upper glands 42 and 62 in its opposite ends, can be threaded uniformly from end to end; thus providin'g for the sup ort of the upper inlet-valve and for f the ormation of the stuiiing-box around the plunger rod, at one operation.

The general construction of the pump is such that the `parts may be large, simple and substantial, with a minimum of care required in fitting and assembling, and in maintenance in use. The pump is exemplified as double-acting, with special novel means for alternatively rendering it singleacting; and it will be understood that other novel details, herein set forth, are beneficial either in single or double action of the pump, whether the pump be designed primarlly for sin le action only, or for alternative double action, as herein exemplified.

' Variations may arise under dilerent conditions; and therefore, while certain constructional details are deemed preferable in connection with our invention, and we have shown and described these rather specically in elucidating the construction and use of our invention, as is required, we do not wish to be understood as being limited to such precise showing and description, but having thus fully described our invention,

What we claim as new and desire to secure by Letters Patent is:

1. In a pump, a cylinder having an inlet opening in one end, a plunger in said cylinder, means for actuating said lunger, an inlet valve at the other end of sald cylinder, a rigid inlet-valve element at said one end, having fixed thereon a gasket face with an opening, means supporting said rigid element to move toward said one, end to bear thereon with said gasket vface across said inlet opening, or to move away from said end, and to move on'said end to present its gasket face with the opening of said gasket ace out of register or in register with said inlet opening, alternatively, and outlet valves at opposite ends of the cylinder.

2. In a pump, a cylinder having an inlet opening and an access opening in one end, a p unger 1n said cylinder, means for actuating said plunger, an inlet valve at the-other end of said cylinder, a rigid inlet-valve element at said one end, inside said cylinder, having a gasket face with an opening, means supporting said element to move toward said tively, a handle-element on said inlet-valve element, extending out through and movable along said access opening to move said valve element, and outlet valves at opposite ends of said cylinder.

3. In a pump, a cylinder having a plungerrod opening, an access opening, and an inlet opening in one end, an inlet valve at the other end of said cylinder, a double-acting plunger in said cylinder, a plunger-rod on said plunger, extending' through said plunger-rod opening, outlet Valves at opposite ends of said cylinder, an inlet-valve element around said plunger rod, inside said cylinder, having a face with an ofpening toward said one end of said cylinder, adapted to seat across said inlet opening, glands in opposite ends of said plunger-rod opening, around said plunger rod, packing in said plunger-rod opening between said glands,

around said plunger rod, the inner one of said glands having engaging means restricting said inlet-valve element to@ a limited movement toward and away from said cylinder end and permitting sald inlet-valve element to rotate to present its face with the opening of said face out of register or in register with said inlet opening, alternatively, and a handleelement on saidinletvalve element, extending out through said access opening.

4. In a pump, a cylinder having a plungerrod opening and an inlet opening in one end, a plunger in said cylinder, a plunger rod on'said plunger, extending through said plunger-rod opening, an outlet valve for said cylinder, an inlet-valve element around said plunger rod, inside said cylinder, adapted to seat across said inlet opening, glands in opposite ends of said plunger-rod opening, around said plunger rod, and packing in said plunger-rod opening between said glands, around said plunger rod, the inner one of said glands havin engaglng means restricting said inlet-va ve element to a limited movement toward and away from said cylinder end.

5. In a pump, a cylinder having a valvestem openlng and an inlet opening in one end, a plunger means for actuating said plunger, an out et valve for said cylinder, an inlet-valve element inside said cylinder, adapted to seat across said inlet opening, a stem on said valve element, extendin out through said valve-stem opening, an engalging means on said stem, outside said cy 1n er end, to engage with said end, restricting said valve element to a limited movement toward and away from said cylini der end, said valve element being thus adapted to be assembled in said end of said cylinder by insertion from the opposite end of the cylinder.

6. In a pump, a cylinder having an outletvalve opening, a plunger in said cylinder, means for actuating said plunger, an inlet valve for said cylinder, an outlet-valve nipple secured in said outlet-valve opening and having a reduced outer extension with a shoulder therearound, and having a passage with an internal annular outwardly facing valve seat and having engaging means on its end, less than the circumferential extent of said end, a movable valve-element in said passage, between said seat and said engaging means, restricted by said engaging means tm a limited movement toward and away from said seat, and an outer section having a passage and having an enlarged opening around said passage in its inner end, receiving said nipple extension, whereby said section is fixed t0 said nipple.

7. lin a pump, av cylinder having outletvalve openlngs in its side, near respective ends, a, double-acting plunger in said cylinder, means for actuating said plunger, inlet valves vat opposite ends of said cylinder, outlet-valve nipples secured in the respective outlet-valve openings, each having a reduced outer extension with a shoulder therearound, and having a passage with an annular outwardly facing valve seat and having engaging means on its end,- less than' the circumferential extent of said end, movable valve elements in the respective passages, between their seats and engaging means, restricted by said engaging meansto a limited movement toward or away from the respective seats, outer sections having passages and having enlarged openings around their passages in their inner ends, receiving the respective nipple extensions whereby the sections are fixed on the nipples, a connecting-pipe fixed to one of said outer sections and communicating with its passage, a connection-nipple fixed to the other section and communicating with its passage and receiving the free end of said connectingpipe, and means fastening said connectionpipe and connection-nipple together.

AUGUST B. V0 ES. ANTHONY VO ES.

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