US1570981A - Valve grinder - Google Patents

Description

Jan. ze, 192e. 1,570,981

R. WILDEN ET AL VALVE GRINDER Filed May 17 1921 3 Sheets-Sheet 1 /rrramvfn Jan. M26 1926.

R. WILDEN El Al.'

VALVE GRINDER Filed May 17 192.1 3 Sheets-Sheet 2 Treff/YEL Jan. 26,1926. 1,570,981

' R. WILDEN ET AL vALvE cammen Filed May 1v, 1921 s sheets-sheet s .o frana/EK 66 I y Bfmm? Patented Jan. 3G,

UNITED STATES PATENT oFFlcE.

RUDOLF1 XVILDEN, 0F NEW YORK, H. Y., AND FRANK J. WINARSKI, JR., ANDAUGUST J". W'NARSKI, OF WEST HOBOKEN, NEW JERSEY. l

VALVE GRINDER.

Application med May 17, 1921. serial No. 470,447.

To all whom it may concern.:

, Be it known that RUDOLF ILDEN, FRANK J. lVINARsm, J r., and AUGUST J. VINAnsKr,

citizens of the United States, residing at New York city and Vest Hoboken, in the counties of New York and Hudson and States of New York and New Jersey, have invented certain new and useful Improvements in Valve Grinders, of which the following is a specification.

This invention relates to a valve grinder. It is generally aimed to provide a construction which is portable, may be securely held in both hands, is shaped to be applicable beneath the hoods of automobiles to the engine valves, is electro-magnetically driven, and improved, simplified and rendered more advantageous in the particulars which will be hereinafter set forth.

A very important object is to provide a construction utilizing electromagnetic means operable effectively by either alternating or direct electric current.

Another important object is to provide an electromagnet which will operate elticiently on either alternating or direct current, and be particularly useful in a valve grinder although capable of general application.

A further important object is to provide a novel type of means for connection of the electromagnetic means to valves of different types.

One operative embodiment is illustrated in accompanying` drawings wherein Fig. 1 is a side elevation;

Fig. 2 is a top or plan view;

Fig. 3 is a top or plan View with the motor and cover plate removed;

Fig. 4 is a` cross-section on line 4-4 of Fig. 3 but with the cover plate thereon;

Fig. 5 is a cross-section across the cover plate;

Fig. 6 is a. detail transverse section illustrating the mounting of the electro-magnet from the casing;

Fig. 7 is a detail, partly in section, of the electro-magnet employed; Y

Fig. S is an inverted plan of the electromagnet showing the supplemental valve-engaging head in place;

Fig. 9 is a similar view to Fig. 8 but with the supplemental valve-engaging head removed;

Fig. 10 is a top or plan view of the electro-magnet;

Fig. 11 is a detail section through the valve-engaging heads on the plane of the attaching means;

Fig. 12 is an edge view of the supplemental valve-engaging head.

Fig. 13 is an edge View of the main valveengaging head, and l Fig. 14 is a schematic view showing the electrical connections.v

Referring specifically to the drawings wherein like reference` characters designate like or corresponding parts, a suitable casing is providedv and may consist of a base plate 14, side ywalls 16, preferably V-shaped as shown. Extending inwardly lfrom side walls 15 are plates 17 and 18 upon which a closure plate 19 may rest, bounded by the walls 15 and 16. Closure'plate 19 is removable and preferably secured in place by set screws 20. y

The forward end `of the casing is made relatively low as shown so .that it may be insertible into a comparatively small space. At the rear ends, wings 21 are formed integral with walls 15 between which an electric motor 22 is ldisposed and `fastened as by means of set screws 23. This motor is of the universal type, that is it may be operatedbv either direct or alternating current. The electric, current` may be supplied from any suitable source as through wires or conductors 24 leading from a plug 25 insertable into an Lordinary electric lighting socket. A handle 26 extends rearwardly frompthemotor, preferably in a horizontal plane, and may be secured by screws 27 passing into handle and through lugs 28 of the motorcasing. Thewires 24 preferably pass through the handle 2 6, being suitably insulated therefrom,` and a normally Yopen switch 29 is preferably mounted by handle 26 and arranged in the circuit wires 24.

-Another handle 30 is mounted above and transversely of the casing, on the opposite side of the motor 32, as by arms 31, rising` from closure 19 and fastening elements 32',

It will be realized that the shaft of the motor 22 as shown at 33 is vertically disposed. Fixed on the shaft 33 `is a gear wheel or pinion 34. Meshing with said pinion 34 is a pinion 35, supported and journaled b a stud shaft 36 from an arm or plate 37 spanning walls 15 in a plane below the plates 18.

Journaled in plate 17 is a shaft 38. A bearing 39 to directly receive shaft 38 may be formed integral with the plate 17. Said shaft 38 is also journaled in the base and in a bearing 40 secured thereon. Above bearing 40, a crank 41 is fixed to shaft 39. A pitman 42 is pivoted at 43 'to said crank 41 and at 44 to said pinion 35. One or more openings 15 may be provided in the casing to facilitate lubrication of the moving parts.

An electro-magnet A is carried by shaft 38 below base 14 and a plate 45 preferably of brass is fixed to turn therewith and with the shaft 38. At the outer extremity this plate is provided with a vertically disposed tube 46 which extends through and above an arcuate Slot 47 provided in base 14 as best seen in Figure 3. Conductors 48 are controlled by switch of motor 22 and may be secured to base 14. From binding post 497 said conductors 48 pass through tube 46 to the electro-magnet A.

Referring in detail to the electro-magnet A, it is best shown in Figure 7, and has a core 51 preferably of soft iron depending from shaft 39. Core 51 and shaft 38 are connected together as at 52 and the shaft 38 is preferably of brass or other noninagnetic material. Disks 53 of suitable insulating material are spaced apart on the core 51, and the lowermost disk 53 is in contact with a disk or head 54, preferably of brass. One of the4 conductors 55 known in the art as shading winding7 and formed intol an outer winding of the magnet at 56 while the other conductor 48 :is connected to a conductor 57 known in the art as enamel copper wire is formed into an inner winding 58 of the magnet. At 59, windings 56 and 58 are joined together. Between windings 56 and 58 is suitable insulation 60, preferably in the form of tape is interposed. Similar insulation to 60 is provided at 61 and 62Y within winding 58 and on the exterior of winding 56, respectively. Waxed cords 63 preferably is wound around insulation 62. A tube 64 of brass surrounds core 51 and intermediate tube 64 and the insulation 61 a plurality of thin iron wires 65 are longitudinally disposed. I employ wires 65 so that when alternating current is fed to the magnet heat will be reduced, magnetism created, and the pulsations absorbed to enable it to practically operate on the same as well las on direct current. Tube '64 being of non-magnetic material prevents contact of the wires 65 and the core. Thisl magnet. structure is capable of general application, although particularly adaptable to use in a valve grinder.

Head 54 is preferably provided with studs 66 to enter the two recesses or holes found in many constructions of the valves used on the engines of automobiles. A supplemental valve-engaging head 67 for instance of brass, is adapted for detachable connection to head 54 and has a bit or rib, preferably of iron extending through supplemental head 67 to contact with shaft 51 at one end and at the projecting end to lit into the groove or recess found in most of the valves mentioned which do not have the two recesses specified. Head 67 is secured against head 54 by means of screws 69 passing through head 67 and into holes 70 of head 54. Head 67 has holes 71 which accommodate the studs 66.

In use, current may be supplied to motor 22 from either an alternating or direct source, as through conductors 24, from plug 25 secured in a suitable lighting or other socket. The motor shaft turns pinion 33 which rotates pinion 36 and pitman 42, which oscillates crank 41 and accordingly shaft 38 and the electric magnet. This electro-inagnet is thus given rapid oscillatory movement. Head 54 may be exposed or head 76 applied for engagement with the valve, according to its construction. When either head engages the valve, the magnetism thereof will lift the valve therewith from its seat, according to the vertical movement imparted to the grinder by the operator, to facilitate an application of the emery or other Valve grinding medium between the valve and its seat, or for inspection purposes from time to time. The valve does not have to be engaged manually. After the ap lication of the grinding medium, the va ve is lowered against its seat and the rapid oscillations of the head with which it is engaged will effect the grinding or reseating thereof.

Changes in the details may be made within the spirit and scope of our invention.

We claim 1. A valve grinder having a casing, a valve actuating means provided with a guide member, said casing having anv elongated slot, said member being movable in the slot, said actuating means including an electromagnet, means to oscillate the magnet, and conductor means for the magnet passing through said guide means.

2. A valve grinder having a easing provided with upstanding walls extended to form wings, a motor secured intermediate said wings and having a depending shaft, a gear wheel on said shaft and within the casing, a closure plate spanning said walls, a shaft depending from said plate, a gear wheel in mesh with the first gear wheel and journalled on the last` shaft, an oscillatory ing an upstanding guide member, the base oi the casing having an arcuate slot therethrough and in which said guide member is positioned, means to oscillate said head from the second gear member, said head including an electric .magnet and conductor means for said magnet passing through said guide member.

3. A Valve grinder having a head pro- 1@ vided with pins, a valve-engaging head detachably applicable againstJ said first head, Said Valve-engaging head having recesses to receive said pins whereby the Valve-engaging head is held against torsional strain when applied to the first head.

In testimony whereof We aiiix our signatures.

RUDOLF VVILDEN. FRANK J. VVINARSKI, JR. AUGUST J. WINARSKI.

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