US712855A

US712855A - Motor.

Info

Publication number: US712855A
Application number: US8490101A
Authority: US
Inventors: Henry J Schmick
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-12-06
Filing date: 1901-12-06
Publication date: 1902-11-04
Anticipated expiration: 1919-11-04

Description

No. 7|2,a55. Patented Nov. 4, |902.v

H. .stumm 'MOTUR (Application med me. e. 1901.) (No Model.)

l 6 Sheqts-Sheet I.

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No. 7|2,855. Patented Nv. 4, |902.

H. J. SCHMICK.

MOTOR.

(Application led. Dec. 6, 1901.) (No ModeL) 6 Sheets-Sheet 3.

.' v I A mvemoz w WM. ,47 ffl/@M SH01/MMA No. 7I2,855. Patented Nov.'4, |902.

H. J. SCHMICK.

MOTOR.

(Application led Dec. 6, 1901.)

(No Model.) l 6 Sheets-Shut 4. l

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(Application led Dec. 6, 1901.)

6 Sheets-Sheet 5.

(No Model.)

WW1/Leona I Patented Nov. 4, |902. H. J. SCHMICK.

MUTUI?.

. (Application filed Dec, 6, 1901.) (Ilo Model.)

6 Sheets-Sheet 6.

" AEN OFFICE.

HENRY J. SOHMIOK, OF HAMBURG, PENNSYLVANIA.

MOTOR.

SPECIFICATON forming part of Letters Patent No. 712,855, dated November 4, 1902.

Application filed December 6,1901. Serial No. 84,901. (No model.)

.'o om, 1072/0711/ it may con/cern:

Be it known that I, HENRY J. ScHMrCK, a citizen of the United States, residing at Hamburg,in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Mot-ors; and I do hereby declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invent-ionrelates to steam or other engines, has especial reference to that class of engines used for pumping or compression purposes, but is not limited or confined to such use, has for its object the economical transmission of power from the engine or the actuating to the actuated medium with the maximum amount of leverage confined Within a limited space or body and the minimum amount of frictional contact-surface between the actuatingand the actuated, and consists in certain improvements in construction, which will be fully disclosed in the Vfollowing specication and claims.

In the accompanying drawings,which form part of this specification, Figure 1 represents a top plan view of my improvement; Fig. 2, a side elevation of the same; Fig. 3, an end elevation; Fig. 4, a vertical transversesection on line 4 4, Fig. 1; Fig. 5, a vert-ical longitudinal section online 5 5; Fig. 6, alike view on line 6 6; Fig. 7, a vertical transverse section online 7 7 through one of the steam-cylinders'k and its valve-chests, on an enlarged scale; Fig. 8, a vertical longitudinal section through: one of the valve-chests and its valve; Fig. 9,: an end view of one of the cams, the connection with the shaft being removed; Fig."10, aE side elevation of the same; Fig. 11, a sideelevation of the valve-operating mechanism g1 Fig. 12, a top plan View of the valve-operat-` ing mechanism, showing its connection with!` the power-shaft; Fig. 13, a vertical transverse section on one end of the driven shaft, showing the clutch mechanism and the gear- Wheel; Fig. 14, a section of thesame on lines 14 14, Fig. 13; and Fig. 15, a vertical longitudinal section of the eduction-valve of the air-compression cylinder.

Reference being had to the drawings and the characters thereon, 1 1 indicate the sides of the engine-frame, connected by transverse bars 2 2 3 3, the engine-cylinders supported on said bars and which in the present instance are single direct-acting origines, with their open ends adjacent to each other, as

ishown in Figs.'1 and 6, andwhose pistons 44 Yare connected by rod .or rack bars 5, on the lupper edge of which are the teeth 6, forming the rack.

7 7' are the valve chests, each provided with a cylinder 8,'.having an annular flange or collar 9 at one end and a nut 10 at the opposite end, by which the cylinders are secured in the valve-chest, as shown in Figs. 7 and 8, a stuffing-box 11, a gland 12, and a follower or nut 13, a head 14, and a separate supplemental head 15,held in the outer end of the cylinder 8 by the head 14, and a cylindrical valve 16, provided With a transverse port 17, which registers with a like port 18 in the cylinder and one side of said port 18 registers with the steam-supply port 19 in the chest 7 and with the exhaustport 20 in chest 7', and the opposite side of said port 18 registerswith the steam-port 2l in chest-7 and With exhaust-port 22 in chest 7', the cylinder 8 in each chest being Vheld against rotation by set-screws 23. I

The semirotary power-shaft 24 is supported in bearings 25 25 and 29 29 is provided With a master gear-Wheel 2 6, which engages the rack-bar 5,and with a radio-helical cam 27 27 on each side of the gear-Wheel intermediate said Wheel and the ends 28 28 of the shaft, which rest in theV bearings 29. The

.cam isfully described' and shown in its details in vLetters Patent of the United States granted to me on the 28th day of May, 1901,

and numbered 675,020, and shown in my patent for a design for radio-helical earns bearing date of June 11, 1901,-and numbered 34,659, and Will therefore require only a general description in this connection. Thecam 27 is a cylindrical body having dwells a, of which there may be any preferred number, extending longitudinally of the shaft and in an approximately helical path, as indicated byline b in Fig. 10. .The cam imparts motion in a direction at a right angle tothe axis of the cam to a member whose throw equals for every half-revolution of the cam'the diameter of the cylinder minus the thickness of the neck c. As applied in this instance,

IOO

this motion is communicated to the pistons of oppositely-arranged pumps on each side of the engine and which may be used for pumping any fluid; but in this instance I have elected for the purpose of illustration airpn n1 ps. The stroke ofeach piston during each half-revolution ot' the cam by which the piston is actuated is in excess of the radius ot' the cam in each half-revolution thereof.

The cams 27 are set on the shaft 24directly opposite each other, as shown in Figs. 1 and 4, and as a consequence the pistons of the pumps diagonally opposite each other operate synchronously, one parofpistons making an outstroke while the opposite pair are making an instroke, as shown in Fig. 1. The pumpcylinders 30 and 3l, arranged in pairs, as described, are provided with hollow piston-rods 32, to which pistons 33 are attached, and each piston is provided with an ingress-valve 34, and each cylinder is provided With an egressvalve 35, the preferred construction of which latter valve is shown in Fig. 15 and in which the body of the valve is made in two parts d and e, connected by a screw-threaded extension fwith a washer g, interposed between the sections, and the section d is provided witha valve 7L and a neck z', by which the bodyof the valve is connected or attached to the head 36 of the pump-cylinders, and the section e is provided with a neck 7c for connecting a pipe thereto by a suitable coupling for conveying air to a suitable tank or storage-reservoir. (Not shown.)

The piston-rods 32 are each connected to a frame composed of bars 37 37 by cross-heads 38, and each bar is provided with a yoke 39,

which spans the semirotary power-shaft 24,'

and in said bars adjacent to each end of the yoke are journal-boxes 40 to support the shafts 41 of revoluble bearings 42 on each side of each cam, as shown in Figs. 1, 2, and 5. These bearings have faces Zool-responding with the number of dwells 0. on the cam 27 and are revolubly mounted in the journalboxes 40, whereby the contact-surface with the dwells of the cam is constantly changing and the friction between the contact-surfaces reduced to the minimum. The journal-boxes 40 are adjustable longitudinally of the bars 37 by means of tapered keys 43, adjusted by a bolt 44 and

nuts

45 and 46 to set the bearings 42 in proper contact with the cams 27 and to take up wear on the boxes.

In the sides of the

cylinders

30 and 31 are guideways 48 to receive the reduced ends 49 of the bars 37 and support the-frame as it is reciprocated by the cam, and to the inner bar of each frame is attached a rack 50, which is engaged by a pinion 51 on each end of the driven shaft 52, supported in bearings 53 on brackets 54, and is provided with a clutch 55 in each pinion 51 for converting the reciprocatory motion of the frame into rotary motion of the shaft 52, which is transmitted to any line of shafting or machine from pulley 56 on shaft 52 by a suitable belt.

The clutch 55 consists of a head 57 of a di ameter equal to the bore 58 in the pinion 51, secured to the shaft 52, and is provided with a plurality of pockets having faces 59, between which and the wall of the bore 58 balls 60, secured to the shoulders 61 by springs 62, engage as the pinion 51 revolves during the outstroke of the bar and are disengaged while the pinion rotates in the opposite direction` and on each side of the clutch is a plate 63 64, also secured to the shaft 52 to prevent displacement of the clutch.

The motor-ud-supply valves 16 in the valve-chests 7 are supplied from the pipe 65 and its branches 66 66, and the exhaust is conducted through pipes 67 67. The supplyvalves are connected by a rod 68 and the exhaust-valves by a rod 69 and are operated 'from the power-shaft 24 by a miter gearwheel 7() on said shaft engaging alike wheel 71 on a shaft 72,snpported in bearings 73 73, and having a crank-disk 74 secured thereon, to whose Wrist-pin 75 a pitman 76 is connected and engages a shaft 77, supported in bearings 78 78, and is provided with an arm 79, which is connected to arm 86 by a screw 102, which works in a .slot 103 in arm 86 and in its reciprocation engages adjustable tappets 80 80, supported in arms 81 8l, adjustably secured to a bar 82, having slots 83 83, by bolts 84 84, engaging said arms and the slots in said bar. On the bar 86 is secureda counterweight 85, and said bar 86 is pivoted at 87 to the frame of the engine to vibrate as the rod 82 is reciprocated through the medium of arm 79 and arm 86, and at one end of bar 82 a link 88 is pivotally connected thereto at 89 and also connected to a collar 90, secured to valve-rod 68 by a set-screw 91, and at the opposite end of said bar 82 a link 92 is pivotally connected thereto at 93 and also connected to a collar 94, secured to valve-rod 69 bya set-screw 95, whereby the supply and the exhaust of both cylinders are operated simultaneously. The reciprocation of bar 82 is also arrested by collars 96 96 on an extension 97 of the bar, which extension is supported by a post 98, extending up from the engine-frame.

The rack-har 5 is provided with lateral eX- tensions 99, (see Fig. 4,) which form a crosshead resting on a support 100, secured to the transverse bar 2 of the frame, and is held in position by side jaws 101, forming a crosshead guideway in which the cross-head reciprocates.

It is obvious that a double-acting cylinderengine may be substituted for the engine shown without departing from the spirit of my invention by changing the connections between the engine and the actuated parts to suit the change in the engine substituted.

Having thus fully described my invention, what I claim is- 1. The combination of a motor, a power driving-shaft provided with a cam, means for connecting the motor to said shaft, a reciprocatory frame, a driven shaft, means for con- IIO necting said frame and driven shaft, and means for converting the reciprocatory motion of the frame into rotary motion of the shaft.

2. The combination of a motor, a power or driving shaft provided with oppositely-arranged cams, means for connecting the motor to said shaft, a pair of reciprocatory frames provided with revoluble bearings engaging said cams, a driven shaft, means for connecting said frame and driven shaft, and means for converting the reciprocatory motion of the frames into rotary motion of the shaft.

3. The combination of a motor, a power or driving shaft provided with oppositel'y-arranged radio-helical cams, means for connecting the motor to said shaft, a pair of reciprocatory frames having yokes, revoluble bearings supported in boxes in said frames, means foradjusting said boxes, a driven shaft, means for connecting said frames and driven shaft, and means for converting the reciprocatory motion of the frame into rotary motion ofthe shaft.

4. The combination of a motor, a semirotary power or driving shaft provided with oppositely-arranged cams, means for connecting the motor to said shaft, a pair of reciprocatory frames operated by said cams, pistons connected to each frame on opposite sides of the driving-shaft, and cylinders at each end of each frame.

5. The combination of a motor, asemirotary power or driving shaft provided with oppositely-arranged cams, means for connecting the motor to said shaft, a pair of reciprocatory frames operated by said cams, cylinders at each end of and supporting said frames, and pistons for said cylinders connected to the frames.

6. The combination of a motor having oppositely-arranged, direct-acting, and connected pistons, a power or driving shaft, means for connecting the motor and said shaft and for converting the reciprocatory motion of the motor into rotary motion of the shaft, a pair of oppositely-arranged radio-helical cams on said shaft, reciprocatory frames operated by said cams, a pair of oppositely-arranged revoluble bearings supported in each frame, cylinders having pistons connected to said framesand in pairs diagonally opposite each4 other.

7. The combination Vof a motor having oppositelyarranged direct -acting pistons, a rack-bar connecting the pistons, a power or driving shaft having a gear-Wheel engaging the rack-bar and provided with a cam near each end thereof, a pair of reciprocatory frames operated by said cams, apnmp-cylinder at each end of each frame, and a piston for each cylinder connected to said frames.

8. The combination of a motor, a semirotary power or driving shaft provided with a cam, means for connecting the motor to said shaft, a reciprocatory frame provided withrevoluble bearings adjustable in the frame, a pumping-cylinder at each end of the frame, and a piston for each cylinder connected to the frame.

9. The combination of a motor, a power or driving shaft provided with a radio-helical cam, means for connecting the motor to said shaft, a reciprocatory frame, revoluble bearings adjustable in said frame,- aV pumpingcylinder at each end of and supporting the frame, and a piston for each cylinder connected to said frame.

10. The combination of a pair of oppositelyarranged cylinders having their pistons connected and their supply and exhaust valves connected separat-ely, a semirotary powershaft driven by said cylinders, and a valveoperating mechanism connected to the supply, and tothe exhaust-valve of each cylinder and means for communicating power from said shaft to said valve-operating mechanism. 11. The combination of amotor, a power or driving shaft provided with a cam, means for connecting the motor to the shaft, a reciprocatory frame provided with a rack, a driven shaft provided with a gear-wheel engaging said rack, a clutch mechanism on the shaft, a cylinder at each end of the frame, and pistons for said cylinders connected to said frame.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY J. SOHMIOK. Witnesses:

J. ED. MILLER, JOHN H. SNELL.