US1238038A - Portable engine-driving machine. - Google Patents

Description

n. w. MANNHARDT. PORTABLE ENGINE DR!V\NG MACH!NE.

AFPUCATION FILED APR-14.1917.

Patented Aug 21, 1917.

2 SHEETS-SHEET I.

wam wow u if v D. W. MANNHARDT. PORTABLE ENGINE DRIViNG MACHINE.

APPLICATION FILED APR. 14. 1917- 2 SHEETSSHEET 2.

Patented Aug. 21,1917.

DANIEL W. MANNI-IARDT, OF WASHINGTON, IOW.A.'

PORTABLE ENGINE-DRIVING MACHINE.

Specification of Letters Patent.

Application filed April 14, 1917. Serial N 0. 162,124.

To all whom it may concern:

Be it known that I, DANIEL VVQ MANN- HARDT, a citizen of the United States, residing at Washington, in the county of WVashington and State of Iowa, have invented new 1d c eful Improvements in Portable Engine-Driving Machines, of which the following is a specification.

This invention relates to portable engine driving machines, the same being especially designed for use in factories, garages and repair places in order to facilitate the driving of engines and particularly internal combustion engines after the bearings and other parts thereof have been adjusted and tightened, rendering it difficult and in many cases impossible for the mechanic or other person to crank the engine by hand.

Under the present practice, where an en gine has been overhauled and new bearings provided for the crank shaft, crank pins, wrist pins and the like, it is usual to employ another machine to tow the repaired machine for a considerable mileage before the bearings become-sufficiently seated to enable the engine to be cranked by hand. This requires the time and services of two men,

' one man driving the towing machine and the other man guiding the machine being towed.

The object ofthe present invention is to provide a portable device which may be shifted from place to place in a factory or garage and connected to the crank shaft of the engine to be driven, said machine being provided with a motor, means for opera,

tively connecting said motor to the cranr shaft of the engine, and means for adjusting and centering the working shaft of the machine in relation'to the shaft of the engine to be driven.

The machine may be driven by any mechanical power, steam engine, gas engine, or belt driven by line shaft and pulley, or electrical motor driven power, by worm gear type or mesh gear driven type, or friction clutch or cone drive.

With the above and other objects in view, the invention consists in the novel construction, combination and arrangement of parts, as herein described, illustrated and claimed.

In the accompanying drawings Patented 'Aug.21', rem.

Figure 1 is a side elevation partly in section illustrating the machine of this invention in its applied relation to an automobile.

Fig. 2 is a plan view of the same partly broken away.

Fig. 3 is a fragmentary sectional View of a portion of the means for adjusting or lining up the working shaft of the machine.

Figs. 4 and 5 are detail views of a coupling crank which may be used in connection with the machine.

In the preferred embodiment of this invention I employ a truck 01' wheeled supporting base 1, 2 designating the carrying or supporting wheels for the frame of the truck. Mounted on. said truck adjacent to one end thereof is the base section-3 of an electric motor designated generally at A, the

motor being supported upon the base 3 and the armature shaft 4 thereof being connected by worm or spiral gears 5 and 6 to a horizontally extending shaft 7 which forms the adjacent end section of a tumbling shaft the main section of which is designated genorally at B.

The shaft B has one section 8 thereof connected by a ball and socket driving joint 9 with the adjacent extremity of the section 7 of the tumbling shaft. The other section 10 of the shaft B is also connected by a driving universal joint 11 with the adjacent end of a working shaft 12 which is normally disposed in a horizontal plane. The shaft B is provided at a suitable point in the length thereof with a slip joint 12 so that said shaft B may automatically extend or contract itself longitudinally for a purpose which will there are two upper arms and two lower arms 16. The so-called pivots and 21 are, as shown in Fig. 2, in the form of arms or rods extending from the body or bearing portion 22 of the shaft hanger C. The said pivot members 20 and 21 pass through and extend beyond. the parallel motion arms 15 and 16 as shown in Fig. 2 and also through holes in the forward extremities of the fork arms 23 of a hanger raising and lowering member 24, the latter having a threaded portion 25 which passes through the internally threaded hub member or sleeve 26 of an adjusting hand crank 27. The hub or sleeve 26is journaled within a bearing member 28 formed with an annular internal flange 29 which. is received in a corresponding groove 30 in the hub or sleeve 26. The bearing member 28 is provided with oppositely extending trunnions 31 which are journaled in the upper extremities of the forked ends of a standard 32 which is connected by means of bolts 33 to the base extension 19 above described. A forked brace 34: is fastened at its upper end to the standard 32 by means of a bolt While the lower extremities of the forked ends thereof are fastened to the base extension 19 by means of the nuts 33 above referred to. It will now be understood that by revolving the crankhandle27, the hub or sleeve 26 which in reality forms a nut causes a longitudinal movement of the hanger raising and lowering member 24: and effects a corresponding upward or downward movement of the parallel motion arms 15 and 16 resulting in the raising or lowering of the shaft hanger C which carries the hearing 22 for the working shaft 12.

Surrounding the working shaft 8 and slidable longitudinally thereon. a coupling or clutch sleeve 36, the same being keyed to the shaft l2 so as to be rotated thereby, the key being shown in the form of a pin 36 carried by one shaft and slidable in a slot 38 in the other member, permitting the sleeve 36 to be slid beyond the extremity of the shaft 1.2 so as to be moved into engagement with the crank shaft or cranking shaft of an engine. For this purpose, the sleeve 36 is shown as formed at 39 to engage the starting crank of an automobile or similar vehicle, the said end portion of the sleevebeing shown as provided with a slot or notch 40 which receives a portion of the shaft of the crank and also a portion of the crank arm thcreof. A. shifting lever 41 is provided for moving the sleeve 36 longitudinally of the working shaft 12, Said lever 41 is connected at its lower extremity to a fulcrum pin -12 carried by a fulcrum arm 43 which is connected by a pivot td to the base extension 19 as indicated in Fig. 1. The lever 41 has connected thereto by means of a pivot 4:3, an operating rod which is provided at its opposite extrem- Leas es ity with a hand grip 47 and adjacent thereto with rack teeth 48 adapted to engage a lip or tooth 49 shown formed on the standard 32m The hand grip 47 is located adjacent to and slightly above the electric motor A so that the operator does not have to shift his position in starting and stopping the motor and in manipulating the shifting lever 41 for the purpose of correspondingly shifting the coupling or clutch sleeve 36 into and out of engagement with the crank shaft of the engine. The central portion of the lever 41 is enlarged to form working faces 50 and 51 which cooperate with collars 52 and 53 on the sleeve 86, said collars being shown as fastened to the sleeve 36 by means of binding screws 57.

Instead of the coupling sleeves hereinabove described, the detachable coupling crank illustrated in Fig. i may be employed, the same comprising a crank arm 58 formed with a slot 59 to receive a member 60 of the starting crank of the engine, the arm 58 being further provided with a. squared shank portion 61 extending at a right angle to the arm 58 and adapted to be received in a squared socket 62 in the extremity of the coupling or clutch sleeve 36.

in some cases it is necessary or convenient to connect the machine to the front of an automobile or similar vehicle, especially where it is intended to propel the engine for a considerable period of time. .ln such cases, connecting members designated generally at D are interposed between the members 20 and 21 and the front springs 63 of the vehi cle, each of said connecting members I.) being shown as comprising an end piece'er section 64: having an opening to receive one of the members 20 or 21, and another end section 65 resembling a clevis and provided with a bolt (36 adapted to be inserted through the adjacent spring 63 to take the place of the usual connecting bolt 67 which fastens the spring 23 to the frame of the vehicle. (38 designates a turn buckle engaging right and left hand threaded stems 69 and 70 of the and pieces or members 64- and 65, providing for adjusting the machine into proper relation to the vehicle, the engine of which is to be driven by the machine of this invention.

A tcnsioning de ice is interposed between the shaft hanger 14. and the truck frame 1,

the same being shown as consisting of a coiled contractile spring 71 one end of which I is shown as connected to shock 72 on the frame 1 and the other end connected to a hook 723 at the bottom of the hanger 14. The tcnsioning device Tl resists the npwai d move meat of the hanger l-Lt and also s lVQS to pull the same down when the handle 27 is turned in the proper direction to lower said shaft hanger,

eas es From the foregoing description, taken in connection with the accompanying drawings, it will now be understood that the portable engine driving machine may be Wheeled to a position in front of the automobile or the like and, if desired, connected thereto by means of the members D. The coupling or clutch sleeve 36 is then placed in engagement with the crank shaft of the engine and if the working shaft 12 is not in perfect alinement therewith, the shaft hanger 13 may be raised or lowered by the operating means described until a perfect alinement is obtained between the working shaft 12 and the cranking shaft of the engine. The lever 41 is then shifted by means of the hand 47 and rod 46 so as to press the cranking s aft into engagement with the engine shaft. Then the electric motor A is started and the full power thereof applied to the engine shaft for turnin the latter. This operation is continued until the bearings of the engine have become properly seated and have become sufficiently loose to enable the engine to ac cranked by hand. The engine driving machine is then uncoupled from the motor vehicle and may be set aside until again needed.

The device may be used for different purposes; if an automobile is equipped with a storage battery and the battery is run down or exhausted and is necessary to charge the same before it will operate the engine of automobile, this device can be attached to the crank shaft of the automobile engine and operate the same and charge the batteries in the automobile without having to operate the engine of the automobile, causin a lot of gas and smoke in the room which is dangerous as well as offensive. The device 15 less expensive to run than the vehicle engine and requires no attention when once started.

I claim 1. An engine driving machine, comprising a supporting base, a motor mounted thereon, a working shaft operatively connected with said motor and adapted to be driven thereby, a hanger for said working shaft, means for adjusting said hanger to ring the working shaft into alinement with the shaft of the motor, and coupling means between said working shaft and the engine shaft.

2. An engine driving machine, comprising a supporting base, a motor mounted thereon, a working shaft operatively connected with said motor and adapted to be driven thereby, a hang?! for said working shaft, means for adjusting said hjfanger to bring the working shaft into alinement with the shaft of the motor, coupling means between said working shaft and the engine shaft, and manually controlled means for shifting sald coupling means.

3.; An engine driving machine, comprising kit a supporting base, a motor mounted thereon, a working shaft operatively connected with said motor and adapted to be driven thereby, a hanger for said working shaft, means for adjusting said hanger to bring the working shaft into alinement with the shaft of the motor, coupling means between said Working shaft and the engine shaft, manually controlled means for shifting said coupling means comprising parallel motion arms interposed between said shaft hanger and a member having a fixed relation to the supporting base, a hanger raising and lowering member connected with said hanger, and means for shifting said hanger raising and lowering member longitudinally.

4. An engine driving machine, comprising a supporting base, a motor mounted thereon, a Working shaft operatively connected with said motor and adaptedv to be driven thereby, a hanger for said working shaft, means for adjusting said hanger to bring the working shaft into alinement with the shaft of the motor, coupling means between said working shaft and the engine shaft, manually controlled means for shifting said couplin means comprising parallel motion arms interposed between said shaft hanger and a member having a fixed relation to the supporting base, a hangerraising and lowering member connected with said hanger, means for shifting said hanger raising and lowering member longitudinally, the last named means comprising a revoluble nut having a threaded engagement with said hanger raising and lowering member, a bearing for said nut, and supporting means pivotally supporting said bearing member.

5. A portable engine driving machine comprising a Wheeled supporting base, a motor mounted thereon, a working shaft,

its

an adjustable hanger for said working shaft,

parallel motion arms connecting said hanger with a member having a fixed relation to said supporting base, a longitudinally extensible base, a longitudinally extensible tumbling connection between said motor and working shaft, means for shifting said shaft hanger, and means for coupling said working shaft to the cranking shaft of an engine.

6. A portable engine driving machine comprising a wheeled supporting base, a motor mounted thereon, a working shaft, an adjustable hanger for said working shaft, parallel motion arms connecting said hanger with a member having a fixed relation to said supporting base, a longitudinally extensible base, a longitudinally extensible tumbling connection between said motor and working shaft, means for shifting said shaft hanger, means for coupling said working.

7. A portable engine driving machine comprising a whee/1% supporting base, a motor mounted thereon, a Working shaft, an adjustable hanger for said working shaft, parallel motion arms connecting saicl hanger th a member having a fixed relation to said supporting base, a longitudinally extensible base, a longitudinally extensible tumbling connection between said motor and;

Working shaft, means for shifting said shaft halogen, means for coupling said Working 10 shaft to the cranking shaft of an engine, anti means for connecting said machine to an engine propelled vehicle.

In testimony whereof ii aflix my signature.

DAN'EEL W. EMNNHARDT,

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