US1785688A - Guideway for reciprocating engines, pumps, or the like - Google Patents

Description

A. ALDRICH Dec. 16, 1930.

GUIDEWAY FOR ARECIPROCA'IING ENGINES, PUMS, OR THE-LIKE Original Filed April 24, 1924v 3 Sheets-Sheet l ll|l||l|I!IIFIIIIIIIIIIIIIIIIILIL A. ALDRlcH 1,785,688

GUIDEWA'Y FOR 'RECIPROCATING ENGINES, PUMPS, OR THE LIKE y Dec. 16; 1930.

Original Filed April 24, i924 5 Sheets-Sheet 2 A. ALDRIH GUID-EWAY FOR RE'CIPROCATING ENGINES, PUIPS, 0R THE LIKE Original Filed April 24, 1924 3 Sheets-Shut 3 Patented Dec. `16, 1930 PATENT oFFlcE ALONZO ALDRICH, `0F BELOIT, WISCONSIN GUInnWAY ron REGTP'ROCATING ENGINES, PUMPS, on THE LIKE original application mea kApril4 24, 41924, serial No. 708,615. Divided and this application ined Maren' V I1o,1e26. semaine. 93,568.

My invention relates to guideways for re-v ciprocating engines, pumps or the like.

One of the objects ofthe invention is Vto provide a simple, practical .and advantageous constructionof guideways for recipro; eating pumps or engines and like devices.

4Other objects of the invention is to support the weight of thef'reciprocating or moving parts,'such as the piston rod vor cross head or connection in an effective and adequate manner ,Ito avoid undue strains,fwear and friction; andto permit ready lubrication and adjustment.

In the accompanying drawings Fig. 1 is a side elevation of a pump having a guideway embodyin'gmy invention; f

Fig. 2 is an end elevation of the same;

Figs. 3, 4l. and 5 are views offdetails of con struction, Fig. 3 being taken on line B Sin Fig. 1, and Fig. l being taken on line 4-4 in Fig. 5. I I

Referring to the drawings,l show a reciprocating pump yparticularly adapted yfor use as a-stuff pump for pumping paper making y material, often called stuff, although it will be understood that the invention may be applied to other forms of apparatus. Y This pump has a base member 1 supporting a plurality, as for example, three, cylinders 2, 2a and,2?),rwhich are horizontally disposed and `arianged'side byside.A These'cyl'inders 2, 2a

and 2b are `provided with reciprocating pistons", 3, 3a and 35, connected with'c'onnecting rods lr-4, which connection rods 4 4 aredriven by cranks spaced 120 degreesapart Aon a rotary shaft 5. l v Y Below the cylinders 2, ,2a and 2b are casings 7, 7a and 7?), respectively, and these, casings form chambers for the stuff and are connected with stuff inlets8 8fby a duct or passage formed by the end portion 9 ofthe base 1s L`-fl`he casings 7, 7 a and 7 Z2 are conveniently cast integral with thelrespective cylinders 2,

2a andj2b, and are open at their upper ends so asfto communicate with said cylinders 2,

*2a 'and 2b, permitting the stuff to enter either or both ofthe inlets 8 8, and flow into the staff chambers Vformed by casings 7, 7 a and" 7 and thence into the cylinders. The flow of the stuff, however, is controlled by ball valves 10 10, seated on valve seats 11 11 at the base ofthe several stuff chambers 7, 7a and 7b, said ball valvesbeing guided in their vertical movement by guide ribs or vanes 12 12. For permitting access 1 yand 17 b are preferably cast together and are in communication with the respective cylinders, and are provided with ball valves 20 20 controlled by guide vanes or ribs 21 21, and arranged to control the outflow or escape of stu from the several cylinders with Awhich they are respectively in communication.' These stuff outlet chambers are also preferably provided with side doors 22 22 held in position by handles 23 23 on threaded rods 24.-24, allowing access to the interior of said chambers for various purposes. The pistons 3, 3a, and 3b work in stuffing boxes 25-25 having packiner rings 264-26 controlled by adjustable memrbers 27 27, as best shown in Fig. 5. Said piston rods are further supported and` guided by guides 2.9 29V travelingin guideways 30 30. The guides 29 are preferably secured to the pistons 3 3 by annular members 31 having webs 32 secured by bolts 33 to flanges 34 formed on the ends of the tubular pistons 3. The webs 32 also serve as a medium of connection between the pistons 3 3 and their guides andthe piston rods 4 4, said pistons 4. being preferably secured by ball or universal joints to said webs 32-32, the latter preferably being` laterally recessed so as to form chambers for oil 36 for lubricating said ball or universal joints. i

The guideways 30 are conveniently formed by upper guide members 30a and lower guide strips 305 bolted to the upper members 30a by bolts 300, the guides 29 having their outer edges interposed and working between members 30a and 305; The members 30?) preferably have their inner ends recessed to form chambers for oil 30d. l

Thus it will-be seen that in operation the reciprocating pistons 3 3 will havetheir outer ends advantageously supported, guid-.

ed and lubricated and also that an effective supporting and guiding connection is made.

This application is a division of-my application Serial No. 708,615', iiledApril 24C, 1924, Stuff pumps.

It will be understood that changes andV and connect-ed with the same at intervals.

2. The` combination withthe cylinder and piston therefor, of a guide connected with the outer end of the piston anda guideway for said guide, said guide having an annular member surr-ounding the piston and also having a web bolted to a flange on the outer end n of the piston.

3. The combination with 'aV yhorizontally disposed cylinder of a piston working therein and a guide supporting and guiding said pis-v ton and .arrangedl abovethe' open end of the cylinder, and means for covering said guides and making the same practicallywaterproof.

4. The combination with the piston and cylinder of a cross head member carried at the router end of the :piston and comprising a web-like member extending across the piston and secured to the same, said ymember' having a forwardly extendingportiom the upper end:V of which is extended laterally to form guide members, an elevated guideway in which said guide vmembers travel, and a piston rod connection carried by said cross headl member. j e j 5. The combination with a cylinder and an elongated piston, of across member forming the outer endof said piston and detachably secured thereto and having an upwardly and forwardly extending supporting portion, said supportingportions having side guide extensions, a guideway for said guides and a. universal connection 'for said piston and a connecting rod.

` 6. The combination with a cylinder and an elongated hollow piston,of a removable end member for said piston having an upwardly and forwardly extending suspension portion, said suspension portion comprising outwardly projecting slidable guides, underhung guideways for said guides, and articulate means for connecting to a connectingrod.

7. In combination an elongated hollow piston, a cylinder, a guide for saidpiston, said guide comprising a cross member forming the "ways in which said ed with slidable guide surfaces, a `recessed guideway for said guides and articulate means for connecting a connecting rod..

8. In a device of the class described, the v combination with a cylinder open at one end, Y of a hollow cylindrical piston adapted to reciprocate in'said open end, a swinging piston rod, a closure for the outer end ofthe piston in which the piston rod is pivoted, a

Y guiding and supporting member for the pisg. 4ton forming a part of said end closure, vand guiding and supporting member reciprocates. y f Y 9. In a device of the class described, v the combination with a cylinder open atone end, of a hollow. cylindricalpiston adapted. to reciprocate in said open end, aswinging piston rod, a Vclosure for theouter end of the piston in which the pistonrod is pivoted, a guiding and supporting member for the piston forming a part of said end closure, and

ways in which said guiding and supporting member reciprocates said closure being provided with a recess for oil byy which the piston rod joint is lubricated. y v p Y 10. In a device of the classdescribed, the

combination with a horizontal'guide member consisting of an upperand a lower portion connected to form a guide channel, of across Y vhead memberhaving a bearing portion shaped to slide in said' guide channel, the said lower portion being so shaped as to form a longitudinal trough for oil'at the open side ofthe guide channel extending throughout thepathof said bearing portion and adapted to hold oil at a level above thecontacting surfaces ofthe guide channel and bearing portion.

11. In adevice of the class described, theY combination with a horizontally exten ding guidemember consisting of an upper and lower portion connected to form a pair 'of opposed guide channels l,019611 0n their adj acent sides,

of a cross head ymember having a pair of bearing portions shaped to slide in said guide channels, saidlower portion shaped so as to have a flange for each guide channel extendof the guide channels extending throughout the path of said bearing portions and adapted ICU '1157. ing upwardly above but-'spaced away from tohold oil at a level above the contacting surfaces of the guide channels, and bearing portions. v f f 12. In a device of the class described,- the combination with a horizontally extending guide member consisting of an upper and lower portion connected to forma pair of opposed guide channels openon their vadjacent sides, ofV a cross head memberhaving a-pair of bearing portions shaped to slide in said lguide channels and having a central web extending upward between said guide channels, thence laterally on each side, and thence downwardly to the pair of bearing surfaces, said lower portion shapedso as to have a flange for each'guide channel extending upwardly above butv spaced away from said guide channel so as to form a pair of longitudinal troughs for oil at the open sides of the guide channels extending throughout the path of said bearing portions and adapted to hold oil at a level above they contacting surfaces of the guide channelsand bearing portions.

13. -In a device of the class described, the combination with a horizontally extending guide member consisting of an upper and lower portion connected vto kform a pair of vopposed 'guide channels open on their adjacent sides, of a cross head member having a )air of bearing portions shaped to slide in said guide channels and having a central web extending upward between said guide channels, thence laterally on each side, and thence downwardly to the pair of bearing surfaces, said lower portion shaped so as to have a flange for each guide channel extending-upwardly above but spaced away yfrom said guide channel so as to form a pair of longitudinal troughs for oil at the open sides of the guide channels extending throughout the path of said bearing portions and adapted to hold oil at a level above the contacting surfaces of the guide channels and bearing portions, said upper portion extending entirely across the cross head member to protect the samer and having a concave underside to accommodate the horizontally extending portions of the web.

In witness whereof, I hereunto subscribe my name this 15th day of February, A. D.,

ALONZO ALDRICH.

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