https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=83888&pn=821,236 Valve Gear for Engines Patentee: Theodore H. Haberkorn - Fort Wayne, Allen County IN Granted:1906-05-22

Abstract: This invention relates to improvements in valve-gears for engines operated by fluid under pressure, and pertains more especially to a reversible double steam-engine for a locomotive. The primary object of this invention is to overcome the defects of valve-gears operated by eccentrics. The attachment of such eccentrics to the driving shaft or axle frequently causes trouble by heating and constantly disturbs the steam distribution, especially in locomotives where such axle never remains in alinement with the valve mechanism, which is attached to frames vibrating on springs. The depression of the springs and the lost motion of eccentrics, journal-bearings, and axle-boxes which are held loose between frames to permit the sliding motion caused by the springs make a valve-gear comprising eccentrics not only defective and wasteful in fuel consumption, but also expensive by frequent adjustments and repairs. The valve-gear or valve-motion is the life of an engine, and a defective valve-motion produces a defective engine. Claim: In a valve-gear for a double engine operated by fluid under pressure, the combination, with the two valves and the two piston- operated cross-heads, of two parallel shafts provided respectively with a power-receiving arm and two power-transmitting arms, with the latter unequal in length and with the power-receiving arm of one of the shafts operatively connected with one of the crossheads and with the power-receiving arm of the other shaft operatively connected with the other crosshead; a link connection between the shorter power-transmitting arm of each shaft and the longer power-transmitting arm of the other shaft, which link connection comprises two links of unequal length, with the longer link pivoted at one end to one end of the shorter link and at its opposite end to the shorter shaft-arm and with the shorter link pivoted at its opposite end to the longer shaft-arm; means for transmitting motion from the longer link of one of the link connections to one of the valves, and means for transmitting motion from the longer link of the other link connection to the other valve, and the axes of the pivotal connections of the shorter link of each link connection being spaced correspondingly with the distance between the axes of the shafts.
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]]> https://www.datamp.org/patents/displayPatent.php?id=50872&pn=608,845 Internal Combustion Engine Patentee: Rudolf Diesel - Berlin Prussia, Germany Granted:1898-08-09
Manufactured by Diesel Motor Co. of America - New York NY
Assigned to Diesel Motor Co. of America - New York NY

Patented in Spain, 03 Dec 1894, #16,654; in France, 10 Dec 1894, #243,531; in Belgium, 10 December 1894, #113,139; in Luxemburg, 10 December 1894, #2,192; in Italy, 21 Feb 1895, #LXXV, 132; in England, 27 Feb 1895, #4,243; in Switzerland, 05 Mar 1895, #10,134 & 10,135; in Germany, 30 Mar 1895, #86,633; in Hungary, 23 Nov 1895, #4,539 & 20 Mar 1897, #7,876; in Austria, 18 Jan 1895, #46/203 & 22 May 1896, #2,038 and in Denmark, 12 Feb 1896, #393. Abstract: My invention has reference to improvements in apparatus for regulating the fuel supply in slow-combustion motors, and in particular to internal-combustion engines adapted for carrying out the process described in my prior patent, No. 542,846, dated July 16, 1895, which process consists in first compressing air or a mixture of air and neutral gas or vapor to a degree producing a temperature above the igniting-point of the fuel to be consumed, then gradually introducing the fuel for combustion into the compressed air while expanding against resistance sufficiently to prevent an essential increase of temperature and pressure, then discontinuing the supply of fuel and further expanding without transfer of heat. Claims: 1. In an internal-combustion engine, the combination of a cylinder and piston constructed and arranged to compress air to a degree producing a temperature above the igniting-point of the fuel, a supply for compressed air or gas; a fuel-supply; a distributing-valve for fuel, a passage from the air-supply to the cylinder in communication with the fuel-distributing valve, an inlet to the cylinder in communication with the air-supply and with the fuel-valve, and a cut-oil, substantially as described. 2. In an internal-combustion engine, the combination of a cylinder and piston constructed and arranged to compress air to a degree producing a temperature above the igniting-point of the fuel; a distributing-valve for fuel; a cutoff for varying the time and duration of the supply of fuel, and a burner placed in the combustion space and constructed for slow and perfect combustion of the gradually introduced stream of fuel, substantially as shown and described. 3. In an internal-combustion engine, the combination of a cylinder and piston constructed and arranged to compress air to a degree producing a temperature above the igniting-point of the fuel, a supply for compressed air or gas, a hopper, a distributing valve for pulverulent fuel, a passage from the air-supply to the cylinder in communication with the fuel-distributing valve, an inlet-valve to the cylinder in communication with the air-supply and with the valve for pulverulent fuel, and a cut-off for the fuel-supply, substantially as shown and described. 4. In an internal slow-combustion engine, the combination of a cylinder and piston constructed and arranged to compress air to a degree producing a temperature above .the igniting-point of the fuel, a supply for compressed air, a hopper and distributing-valve for pulverulent fuel, a supply-pipe for liquid- .fuel, a valve or valves leading to the cylinder and communicating with the pulverulent fuel-distributing valve and the liquid-fuel supply pipe, and a cut-off for the fuel-supply, substantially as specified. 5. In an internal-combustion engine, the combination of a supply for compressed air, a feed for pulverulent fuel placed in communication with the air-supply and with the cylinder, and an auxiliary feed for liquid fuel communicating with the cylinder, substantially as specified. 6. In an internal-combustion engine, the combination of a cylinder and piston, a supply for compressed air, a distributing-valve communicating with the air-supply and with a fuel-supply for gradually introducing a unitary, or mixed fuel, into the combustion space, a valve placed between the air-supply and the cylinder, and a reversing gear in cooperation with said valve for starting the motor with the compressed air from the air-supply during part of the working stroke, substantially as and for the purpose specified. 8. In an internal-combustion engine, the combination of a cylinder and piston constructed to compress air or a mixture of air and neutral gas storage-reservoir in communication with the combustion-space of the cylinder, a valve controlling this communication and opening to admit compressed air from the cylinder to the reservoir, and a fuel-feed in communication with said reservoir for the introduction of fuel to the combustion space under the pressure of the compressed air or gas in the reservoir, substantially as dc scribed. 9. In an internal-combustion engine, the combination of a cylinder and piston constructed and arranged to compress air to a degree producing a temperature above the igniting-point of the fuel, a distributing-valve for fuel, and a cut-off for varying the time and duration of the supply of fuel by said valve, substantially as described. Claim: In an internal-combustion engine, the combination of a cylinder and piston constructed and arranged to compress air to a degree producing a temperature above the igniting-point of the fuel, a supply for compressed air or gas; a fuel-supply; a distributing-valve for fuel, a passage from the air-sup-ply to the cylinder in communication with the fuel-distributing valve, an inlet to the cylinder in communication with the air-supply and with the fuel-valve, and a cut-off.
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]]> https://www.datamp.org/patents/displayPatent.php?id=63634&pn=491,152 Improvements in or Relating to Milling Machine-Tools Patentee: none listed - Providence, Providence County RI Granted:1938-08-26
Manufactured by Brown & Sharpe Mfg. Co. - Providence, Providence County RI
Assigned to Brown & Sharpe Mfg. Co. - Providence, Providence County RI

Abstract: A milling-machine has a work-supporting table, a longitudinally movable support therefor, and driving connections for controlling the rate and direction of movement of the table and support comprising a prime mover, a transmission train for moving the table relatively to the support, another transmission train for moving the support, and separate control devices for each train to give starting, stopping and reverse, and a single control element which enables the table transmission train to be driven either directly from the prime mover or through the support transmission train. The machine comprises a main column, Fig. 1, on which a cutter spindle is rotatably mounted. The machine is also provided with a work-supporting table mounted to slide on ways formed on a swivel mounting which forms part of a saddle, which is mounted for transverse movement on ways 32 carried on the knee. The knee unit is built up of three relatively movable supports comprising a vertically movable knee member arranged to slide in vertical ways formed on the front side of the column, and adjustably supported by the usual telescoping screw, and a swivel knee member, which carries the saddle ways 32 and is arranged to swing about a transverse axis. The swivel knee member is in turn carried on a knee rail, which is mounted on longitudinally extending ways formed on the vertically adjustable knee member to provide for longitudinal reciprocating movement of the entire assembly. The work table derives its movements from a feed screw, Fig. 2, driven through a reversing clutch, which may be operated by hand or by adjustable stops carried by the table. A further hand-controlled clutch enables the screw to be connected for table operation or to be disconnected when the table feed is not required. The reversing bevels are driven from a vertical shaft, which is driven in turn from a cross-shaft 66 through bevel gearing connected to a bracket, Fig. 6, which permits all the possible movements of the table described above without affecting the drive; the shaft 66 is driven from a longitudinal drive shaft. The knee support, Fig. 2, is moved by a feed screw, which is driven together with the shaft by gearing arranged in a gear-box and driven from a shaft, termed the prime mover, which may be driven from a source of power through further conventional rate-charging mechanism. In the gear-box, Fig. 7, the clutch sleeve, which drives the feed screw is adapted to be driven in forward or reverse directions by gearing from the prime mover, and the clutch sleeve may be moved to obtain these results or to stop the drive to the screw by a hand-control, Fig. 2, or from the movements of the knee support through a slidable control rod 154 carrying adjustable dogs. A gear wheel, Fig. 7, slidable on the end of the shaft by means of a hand-control knob enables the shaft to be driven directly from the prime mover 122 through the gears, or in series with the knee support drive by connection with the gear on the shaft. For an extremely rapid or extremely slow operation of the table the table transmission train is connected in series with the knee support clutch and the table feed screw is connected to drive the table, the speed of the table is then the resultant of the combined driving rates of the table and the knee support. The machine is also adapted for spiral or spiral taper milling work, Fig. 1, by using a spiral head 102 bolted to the table and disconnecting, by means of the clutch, the table from the feed screw 46, all the necessary movement being obtained from the knee support feed gear and from the gear driven by the feed screw. Claim: A milling machine having a work supporting assembly including a work table, and a longitudinally movable supporting member therefor, said table being so longitudinally movable relatively to said supporting member, in which driving connections are provided for controlling the rate and direction of travel of the work table comprising a prime mover, a transmission train from said prime mover for moving the table relatively to the support, a transmission train from said prime mover for moving the support, means including separate control elements associated with each of said trains for controlling independently starting, stopping and reversal of each of the table and the support, and a driving connection including a single control element which enables the table transmission train to be selectively driven, 75 either directly from the prime mover, or through the support transmission train whereby the table and support may be simultaneously controlled.
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]]> https://www.datamp.org/patents/displayPatent.php?id=63633&pn=478,465 Improvements in Attachments for Milling and Like Machine Tools Patentee: none listed - Providence, Providence County RI Granted:1938-01-19
Manufactured by Brown & Sharpe Mfg. Co. - Providence, Providence County RI
Assigned to Brown & Sharpe Mfg. Co. - Providence, Providence County RI

Abstract: A milling &c. machine provided with over-arms comprises a standard, Fig. 1, a main spindle mounted for rotation in the standard, an attachment having a housing carrying a drive spindle, means on the side of the standard for supporting the attachment housing whereby this may be adjusted longitudinally, and driving means between the main spindle and the attachment spindle for maintaining continual driving engagement with the latter in any of its positions of adjustment while leaving the main spindle free to function in its normal manner. The attachment housing sleeve is supported in a split bracket, Fig. 12, carried at the side of the standard wherein the sleeve is rotatably and axially adjustable ; the forward end of the sleeve carries a rotatable head, Fig. 9, which houses the vertically adjustable attachment spindle. This spindle is driven by bevel gearing from a central spindle, which runs the length of the attachment sleeve and is rotatably mounted therein. A long gear 60 integral with the spindle is driven in all positions of axial adjustment of the spindle by gearing connecting the gear 60 with the main spindle of the machine. The gearing for this purpose is housed in a casing, Fig. 12, rotatable about the axis of the main spindle and held, with the last wheel of the driving train in alignment with either one of the openings for the over-arms, or with the attachment bracket, by a stud. This enables the attachment housing to be positioned in the place of either of the over-rms with the drive to the main spindle in engagement. One of the wheels of the train may be slid out of engagement to disconnect the drive to the attachment. A hinged bracket, Fig. 4, is clamped around the over-arms and a part of the attachment to obtain rigidity, and graduations indicate the inclination of the attachment spindle to the horizontal. The end of the attachment driving spindle, Fig. 8, is supported in a bearing 105 at the rear end in the sleeve 41, a telescopic guard encloses the end of the sleeve, the parts of the guard being forced into the collapsed position by a tension spring and the outer end of the sleeve drawing these apart when the attachment is moved axially rearwardly such as when positioning the attachment in the inoperative position, Fig. 1. A lubricator, Fig. 8, is connected to a pipe 108 which passes into the hollow end of the spindle 60 for distribution. Claim: A milling or like machine tool provided with over-arms comprising a standard, a main spindle mounted for rotation on the standard, an attachment having a housing carrying a drive spindle, means on the side of the standard for supporting the attachment housing whereby the latter can be adjusted longitudinally and driving means between the main spindle and the attachment spindle for maintaining continual driving engagement with the latter in any of its positions of adjustment while leaving the main spindle free to function in its normal manner.
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]]> https://www.datamp.org/patents/displayPatent.php?id=58306&pn=2,068,529 Grinding Machine Patentee: William G. Baldenhofer - Springfield, Clark County OH Granted:1937-01-19
Manufactured by Brown & Sharpe Mfg. Co. - Providence, Providence County RI
Assigned to Thompson Grinder Co. - Springfield, Clark County OH

This patent was listed on a Thompson Grinder Co. patent plate, and also on a Brown & Sharpe patent plate. Abstract: This invention relates to improvements in grinding machines of the class known as surface grinding machines, and more particularly to that class in which the work-holder and tool-holder are reciprocally operated by fluid motors, the fluid preferably being a mineral oil under pressure. In machines of this class the work-holder is reciprocated by means of a fluid motor consisting of a cylinder, piston and piston rod. The toolhead is usually advanced or retracted in successive intermittent movements of varying extent by a similar motor, the intermittent movements being timed to occur at the ends of the working strokes of the work-holder. The grinding operation is performed on the work supported on the work-holder by peripheral contact of a rotatable grinding wheel, which is mounted on the outer end of a wheel spindle supported in a horizontally disposed toolhead in such manner that the longitudinal axis of the spindle is located at right-angles to the direction of travel of the work- holder, whereby a flat surface is produced on the work by feeding the wheel across the work in successively intermittent movements. The machine described in the present specification follows a customary practice in providing reversing mechanism which is operated by stop- dogs adjustably secured to the work-holder, this mechanism governing the reversals of the work- holder, and also by the provision whereby the fluid under pressure is supplied to the separate fluid motors from a common source. In the present machine the intermittent feed imparted to the toolholder is obtained by supplying successive predetermined quantities of fluid to the same end of the cylinder of the toolholder motor, and both the toolholder motor and the work-holder motor are supplied from the same source of fluid under pressure. One of the disadvantages of such an arrangement has been that due to varying fluid pressures when the speed of the work-holder is changed, successive charges of fluid of a different quantity will be 1admitted to the toolholder motor resulting in a change in the extent of the intermittent feeds of the toolholder. If the speed of the work-holder motor is decreased, the successive intermittent movements of the toolholder become greater, and 5if the speed of the work-holder motor is increased the extent of the successive feeds of the toolholder is reduced. As a consequence of this, unless provision is made otherwise for preventing it, the quantity of the successive fluid charges admitted to the toolholder motor will obviously vary at different speeds of the work-holder resulting in a variation in the feed of the toolholder. One of the objects of this invention is to overcome this objection by providing that uniform successive charges of fluid will be admitted to the toolholder motor regardless of the speed of the work-holder. Another object of the invention is the provision of means incorporated in a unitary hydraulic valve control mechanism, whereby a smoothly operating machine is afforded. One of the advantages of fluid motor drive is that infinite gradation of work-holder speeds is readily obtainable. Ordinarily, however, the operation is hampered by vibration due to shock at work-holder reversals. The present invention provides a cushioning effect whereby all shock is eliminated. Another object is the provision of improved means for controlling the extent of each intermittent movement of the tool-head, which means may also be employed to alter the direction of movement of the toolholder. Another object is to provide means acting in combination with the devices just mentioned which control the toolhead movements whereby a continuous movement may be given the toolhead in either direction, the direction being under the control of the intermittent control means. Another object is to provide that the toolhead is maintained in position during the intervals between times of movement; that is, the toolhead is substantially in a "locked" position. Claim: In a machine of the character described, a plurality of fluid motors operating from the same source of fluid supply, manual means for regulating the fluid supplied to one of said motors, and fluid admission means operated directly by fluid for admitting successive predetermined charges of the fluid to another of said motors also operable from the same source of fluid supply.
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