baber/WOPTO huggingface dataset:
Patent GB-1517241-A (GB)
Title: Apparatus for obtaining orbital movement of a driven member
IPC: B23H7/28
Filed: 1976-02-04
Abstract: 1517241 Linkwork TRIANGLE TOOL CO 4 Feb 1976 [4 Feb 1975 8 Dec 1975] 04399/76 Heading F2K [Also in Division B3] A workpiece table 16 in an electro-erosion machine is supported on a frame 11 for movement relative thereto in an orbital path by a cam drive 32 producing simultaneous reciprocating movement in two directions. A motor 34 drives a shaft 42 via a chain 38 and a shaft 44 via bevel gears 46. A cam 56 on shaft 42 engages a drive pin 64 itself engaging a rod 70 supported by a bracket 67 depending from the table 11. A spring column 72 urges the rod against the pin and the pin against the cam. The cam comprises a cylinder 90 having a central axis making an acute angle with the longitudinal axis L of the shaft 42. The shaft 44 carries two similar cams 60 engaging drive pins 74 themselves engaging rods 80 supported by bracket 78. Spring columns 82 act on the rods 80 and a spring mechanism 84 bears on a common bearing for the shafts. Rotation of the shafts causes simultaneous movement in the X and Y directions and thus orbital movement of the table. To allow adjustment of the reciprocating stroke length the drive pins 64, 74 are movable along their respective cams. Pin 64, for instance, is carried by an arm 100 pivotally mounted in a block 104 and pinned to a link 106 driven by a rack and pinion 118, 120. A bell-crank (114), Fig. 3 (not shown), transmits the movement of link 106 to a link 110 pinned to arms 102 carrying pins 74. A dial 124, Fig. 1, indicates the range of adjustment. The chamber 130, formed by frame 11, within which the drive mechanism 32 is housed, is filled with lubricant and sealed. In an alternative embodiment, Figs. 8-11, a workpiece table 216 is held on the side walls 214 of frame 211 by magnets (218), 220. A single drive-shaft 242 carries a pair of cylindrical cams 256, one at each end, and, at the end remote from the drive for the shaft, a plate cam 260. Adjustment of drive pins 264 and a drive ball 274 is via a rack and pinion 314, 316 and shaft 318 and racks and pinions 326, 328 and 330.
Patent GB-512400-A (GB)
Title: Improvements in and relating to gas blast electric switches
IPC: H01H33/915
Filed: 1939-02-11
Abstract: 512,400. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 11, 1939, No. 4539. Convention date, Feb. 12, 1938. [Class 38 (v)] A gas-blast circuit-breaker has its operating mechanism and switching chambers enclosed in an outer container which also serves as a pressure gas container and the switching chambers corresponding to the three phases of the breaker are symmetrically disposed round a central operating cylinder having a piston which operates a bridge carrying the three movable contacts of the breaker. In Fig. 1 a pressure cylinder 4, supported from the cover 3 of the container 1, operates the bridge 10 attached to the movable contacts and is biassed to the open position by the spring 13. Only one switch chamber 5 is illustrated which consists of insulating material and is closed at its upper end by a metal tube 6 which has the fixed contact, a silencer and a gas-tight connection through the outer container by means of insulator 7, and is closed at its lower end by the cover 11 and the trap 12 when the switch is in the closed and open positions respectively. Flexible leads 9 connect the movable contacts through the insulators 8 to the supply. To close the breaker the valve 14 is opened electromagnetically thus reducing the pressure above the piston in 4. To open the breaker operation of electromagnet 19 opens valve 18 which causes piston in pressure cylinder 17 to open valve 20 and release pawl 16. As the cover 11 is lifted an air blast will scour the switch contacts. On completion of the opening movement trap 12 prevents further escape of pressure gas. Means 21 will open breaker if pressure of the gas drops too far. In Fig. 2 the switching chambers 5 are supported in a partition 11 so that on opening valve 12 the pressure in the upper half of the container is released and pressure gas flows through switching chambers. By co-ordinating valve 12 with the release valve 17, the sequence of opening and scouring is correctly arranged. Specification 490,518 is referred to.
Patent GB-668953-A (GB)
Title: Disc brake with rotating brake housing
IPC: F16D55/06
Filed: 1950-02-22
Abstract: 668,953. Disc brakes. KLAUE, H. Feb. 22, 1950, No. 4604/50. Class 103 (i). A disc brake of the type in which two brake discs 5 and 6 are moved away from one another into engagement with a rotating housing 1 by means of balls in inclined recesses, is characterized in that two such balls 7 are provided in each of a number of apertures in a rotatable brake ring 8. The brake ring 8 has a pin 13 therein which is rotated by the pivotal movement of a forked member 10 connected by a cable 11 to the brake control. Movement of the balls 7 in recesses on the inner faces of the discs 5 and 6 causes an equal and opposite outward displacement of each brake disc.
Patent GB-1175512-A (GB)
Title: Dynamo-Electric Machine
Inventor: LAWRENSON PETER JOHN
IPC: H02K19/10
Filed: 1966-02-02
Abstract: 1,175,512. Reluctance motors. NATIONAL RESEARCH DEVELOPMENT CORP. 1 Feb., 1967 [2 Feb., 1966], No. 4612/66. Heading H2A. In a pole-changing reluctance motor, the rotor has circumferential magnetic segments 1, 2 having central axial channels 4, 5 which enable the machine to run on several polenumbers. There may be an even or odd number of segments, but the two-segment rotor shown will run on two, four, or six poles. Polechanging may be by separate windings or by pole-amplitude modulation.
Patent GB-590718-A (GB)
Title: Improvements in hydraulic meters, motors or pumps
IPC: F04B1/22
Filed: 1945-02-23
Abstract: 590,718. Swash-plate pumps. JONES & LAMSON MACHINE CO. Feb. 23, 1945, No. 4640. Convention date, Feb. 18, 1944. [Class 102 (i)] [Also in Group XXIX] A revolving-cylinder type pump has two swash-plates 10, 20, of fixed inclination, the latter being adjustable around the axis of revolution by fluid pressure acting on plunger 62 and rotating head 60. The distributing valve sleeve 21 is directly attached to this head whereas the swash plate is turned by gear wheels 76 engaging face gears so that the valve is turned at half the rate of the swash-plate. Inlet and outlet passages pass through the stationary central shaft 1.
Patent GB-179655-A (GB)
Title: Improvements in bonnet locking devices for motor vehicles
IPC: E05B65/19
Filed: 1921-02-10
Abstract: 179,655. Downes, D. F. Feb. 10, 1921. Guarding against unauthorized use.-The bonnets of motor vehicles are provided with a spring-controlled axially movable bolt adapted, when the bonnet is closed, to engage automatically a hole in a hasp mounted on the bonnet board, the release of the bolt being effected by a key-actuated pin-and-barrel lock. As shown, the bolt 33 is slidably mounted in a bent metal frame 31 secured to the bonnet and having a slot 27 through which the hasp 18 passes when the bonnet is closed. The bolt is prevented from rotating by a projection 34 engaging a slot 32 in the frame, the bolt being retracted by an arm 42 oi the lock engaging this projection. The bolt and lock are enclosed by the frame and a channelshaped cover-plate.
Patent GB-912815-A (GB)
Title: Method for preparing organoboron compounds
IPC: C07F5/02
Filed: 1960-02-11
Abstract: Polymeric materials are obtained from organoboron monomers of the type RBX2 where R is vinyl, ethyl, cyclohexenyl, or cyclohexyl, and X is chlorine or bromine (see Group IV(b)).  A polymer may be obtained by reacting boron trichloride or tribromide with ethylene; in Example VIII a mixture of ethylene, boron tribromide, and heptane is heated under pressure in a rocking autoclave.ALSO:Organo-boron compounds of the type RBX2 (or alternatively an organic halogen- and boron-containing polymer) and of the type R1BX2, where X is chlorine or bromine, are made simultaneously by reacting boron trichloride or boron tribromide with cyclohexene or ethylene.  R is cyclohexenyl and R1 cyclohexyl when cyclohexene is the reactant; R is vinyl and R1 ethyl when ethylene is the reactant.  The reaction is catalysed by the chloride or bromide of aluminium or mercury, or by activated carbon.  1-cyclohexenyl boron dihalide and cyclohexyl boron dihalide may be separated by fractional distillation under nitrogen or the mixture may be hydrolysed to the corresponding boronic acids which are separable by fractional crystallisation and may be dehydrated to boroxines or esterified with lower alcohols.  When ethylene is reacted, the product contains ethyl boron dihalide and either vinyl boron dihalide or a polymer, according to the conditions; the ethyl boron dihalide may be separated and converted to the corresponding boronic acid, lower alkyl ester, or boroxine.  The Specification claims as novel the following compounds:- 1-cyclohexenyl boron dichloride and dibromide, the corresponding boronic acid and its dibutyl ester, the corresponding boroxine, and vinyl boron dichloride.  The compounds are useful as herbicides, intermediates, or as monomers for the production of polymeric materials.
Patent GB-311800-A (GB)
Title: Improvements in or relating to fastening devices
IPC: E05B1/00
Filed: 1928-02-15
Abstract: 311,800. Thornley, F. C. Feb. 15, 1928. Signs, supporting and securing.- A door-knocker, handle, numeral, or other fitting 10, 11 is detachably secured to a door 12 by a pin or bolt 9 carried bv the knocker &c. and passed through the door, the inner end of the bolt 9 having threads or serrations which are engaged laterally by a half-nut 7 or like member nesiliently mounted and moved into engagement by a pivoted lever 4 of wedge-form cross-section. The lever 4 is moved into place between the nut 7 and fixed abutments 3 to one of which the lever is pivoted. The nut is mounted on a plate spring 6 suitably fixed to a socket-member 2 which also carries the members 3, 4 and has a projecting portion 19 to prevent rotation in the door. The knocker &c. plate 10 has a projection 13 entering the door to prevent rotation. Several numerals &c. may be carried by a single pin 9.
Patent GB-1032628-A (GB)
Title: Fertilizer manufacture
Inventor: BOOTH DONALD HAROLD
IPC: C05B7/00
Filed: 1962-02-08
Abstract: A compound fertilizer comprising ammonium nitrate and monoammonium phosphate is produced by treating with gaseous MH3 an acid mixture containing at least phosphate, nitrate, and hydrogen ions and water, at its boiling point, to give a homogenous liquid mixture having (1) N : P2O5 ratio of 0.64-2.1, (2) boiling point above 164 (N : P2O5)-0.11  DEG C., and (3) water content between 2 and (2+4N: P2O5)%; which is then granulated.  The acid mixture may contain H3PO4 (e.g. wet-process superphosphoric), HNO3 (both at least 40%), monoammonium phosphate, NH4NO3, H2SO4 and/or (NH4)2SO4 and may be ammoniated in tubular reactors or packed towers; or in the presence of the liquid mixture contained in stirred tank reactors, under conditions such that values 1, 2 and 3 above are maintained. The process may be carried out under atmospheric, increased or reduced pressure. The liquid mixture may be granulated by spraying into a gaseous cooling medium; by injecting into a rotary drier; or by discharging on to a drum or belt cooler from which it is removed and broken up, the fines being returned to the slurry.  The product contains less than 2% moisture.  Other fertilizer materials, e.g. K salts, (NH4)2SO4, urea, or superphosphates may be added before or during granulation.
Patent GB-1058273-A (GB)
Title: Improvements in or relating to fluid-flow control valves
IPC: F16K7/07
Filed: 1964-02-05
Abstract: 1,058,273. Valves. HONEYWELL Inc. Feb. 5, 1964 [Feb. 5, 1963], No. 4930/64. Heading F2V. A fluid-flow-control valve is of the kind in which the flow passes through a deformable sleeve 12, the valve is closed by pinching together opposite side walls of the sleeve, and wherein the sleeve is contained in a throughway in the valve body 14 which throughway has two protuberances 54, 56 projecting laterally into it from one side wall, said protuberances being spaced in the direction of flow and having mutually opposed faces that define between them a side entry passage into the throughway in which there operates a valve plug 70 for pinching the sleeve, and the sleeve wall is contiguous with the protuberances and is itself formed with a protrusion that extends into the side entry passage between said protuberances when the valve is fully open and is pressed against the opposite sleeve wall by the valve plug when the valve is closed, there being sufficient deformable sleeve material in this wall protrusion for the change in sleeve configuration from the open to the closed position to be m de without substantial stretching of any of the material of the sleeve or pulling of the remainder of the sleeve material. In the Figure, a pinch valve 10 may use materials for the sleeve known under the Registered Trade Marks " Hypalon " or " Viton." The pinch valve is joined to a pipeline by flanges 32 and 34 and clamping members 36, 38. The-protuberances. 54, 56 are of substantially triangular configuration, and sloped to converge on the axis-of the side entry to the throughway. - In the side entry is the valve plug 70 operating on the upper fa e 22 of the sleeve by movement of.a stem 68 connected by a screw 82 to a plate 78. A casing 62.is screwed into the pinch valve 10, a spring 84 bearing against this casing and the plate 78 to keep the valve sleeve open. The upper part of plate 78 is attached to a diaphragm 88 fixed to the casing 62 to form a chamber between itself and a cover member 92. A three-way valve 110 is connected to points 120, 130 upstream and downstream of the valve and to this chamber, and by switching the valve to the upstream or downstream ports, the valve can be closed or opened. By closing the valve 110 to both, the pinch valve position is kept stationary.
Patent GB-1377491-A (GB)
Title: Feeding of tobacco and other materials
IPC: A24B3/08
Filed: 1971-02-18
Abstract: 1377491 Storage bunkers W H DICKINSON ENG Ltd 16 Feb 1972 [18 Feb 1971] 4954/71 Heading B8E An apparatus for feeding material comprises a silo 2, Fig. 1, with a conveyer 4 which discharges material and an infeed conveyer 24 which fills the silo to a predetermined depth from the discharge end by oscillating longitudinally over a preset distance until the required depth is reached and then oscillating about a mean position which is displaced away from the discharge end of the silo. The oscillations are controlled by a photo-cell P1, mounted on the conveyer,which causes the conveyer 24 to move to the left until the cell is shaded by a plate 68 or by the pile of material. A timer controls the extent of movement to the right. When half the length of the silo has been filled a limit switch L1 reverses the direction of feed of the conveyer 24 and a photo-cell P2 takes over control of the oscillatory motion until filling is complete and motion is arrested by a limit switch L2. If the discharge conveyer 4 is operating during tne filling operation, the direction of movement of the point about which oscillations occur is determined by the relative rates of filling and emptying. Limit switches L4, L5 acts as safety overrun switches. Proximity switches or switches operated by pendulums may replace the photocells. In an alternative arrangement, the feed conveyer is equal in length to the silo and runs in one direction only and is controlled by a single photo-cell P1.
Patent GB-549490-A (GB)
Title: Improvements connected with rotary electric converters
IPC: H02K47/02
Filed: 1941-04-18
Abstract: 549,490. Rotary converters. SCHWARZ, B. April 18, 1941, No. 5044. [Class 35] A rotary converter of D.C. into A.C. comprises two rotors on a common shaft 0, Fig. 1, each arranged for rotation in a D.C. excited stator and each accommodating a commutator winding C1, C2 connected to a commutator, the two rotor windings having tappings t<SP>1</SP>, t<SP>2</SP> which are interconnected, D.C. being fed into one commutator through stationary brushgear B 1 and A.C. being taken from the other commutator through rotatable brushgear B2 and slip-rings SL3 rotating with the brushgear B2. In a modification shown in Fig. 2, the windings may be accommodated within the same stator and coupled magnetically or they may merge into a single winding connected to both commutators. Field windings F1, F2 receive excitation from the D.C. supply, adjustable by resistors R1, R2. The frequency generated is independent of the speed of the rotor and depends only on the speed of the brushgear, which can be driven by a variable speed motor or through a variable speed gear. Compensating windings are provided to reduce the magnetization by watt-less currents. The output may have any number of phases.
Patent GB-657798-A (GB)
Title: Blast freezer
IPC: F25D17/00
Filed: 1949-02-24
Abstract: 657,798. Refrigerators. DOLE REFRIGERATING CO. Feb. 24, 1949, No. 5080. Convention date, June 28, 1948. [Class 29] In a cold room 1 is located a cabinet 6 closed at the front by doors 11 and containing shelves 24 formed of hollow plates containing eutectic solution cooled by refrigerating coils and so disposed as to form a tortuous passage for air circulated by a fan 15 upwardly through the cabinet, the air entering the cabinet beneath the doors 11 and leaving through hoods 14. The doors 11, when closed, co-operate with some of the plates 24 to define the tortuous passage. Specification 591,477 is referred to.
Patent GB-535497-A (GB)
Title: Electric announcing systems
IPC: H04R3/12
Filed: 1940-03-19
Abstract: 535,497. Public-address systems. STANDARD TELEPHONES & CABLES, Ltd. March 19, 1940, No. 5083. Convention date, March 24, 1939. [Class 40 (iv)] In a system in which the loudspeakers to be operated are selected by individual keys at a transmitting station, the diaphragm of each loudspeaker is normally protected against atmospheric blast by a plug 13 thrust into the throat of the horn in the manner described in Specification 495,496, and the actuation of a common key serves to withdraw the plugs of all the selected loudspeakers. In the arrangement of Fig. 1, which has two transmitting stations, the plugs 13 are held in position against the action of springs 14 by normally energized solenoids 12. Upon operation of one or more of the selecting keys 8, 9 &c. at either station, the circuits of the corresponding solenoids are brought under the control of a common relay 22 or 24, which energizes and releases the solenoids when the operator actuates the speaking key 6, allowing the plugs to be withdrawn by the springs 14. In modifications, Figs. 2, 3 (not shown) having selecting keys of simpler character, (1) the solenoids are energized to withdraw the plugs, (2) individual relays are energized to disconnect the solenoids. In an extension of the arrangement of Fig. 1 to two groups of transmitting stations, Fig. 4 (not shown), the circuit of each solenoid passes in series over corresponding keys at the various stations, so that stations electrically nearer the solenoids have priority over those more distant. Selection-indicating lamps may be provided at each station.
Patent GB-910762-A (GB)
Title: Improvements relating to apparatus for packaging textile slivers in coiled formation
Inventor: COLE STANLEY LEWIS
IPC: B65H54/78
Filed: 1960-03-09
Abstract: 910,762. Coiling textile slivers. T.M.M. (RESEARCFI) Ltd. Feb. 21, 1961 [March 9, 1960], No. 5104/61. Divided out of 910,761. Class 120 (3). Apparatus for coiling textile sliver into a container of rectangular plan form comprises a coiler head 10, means 111 for feeding a sliver thereto and means for reciprocating the head 10 across a container to deposit sliver therein. The head 10 comprises a rotary tube wheel 101, Fig. 2 (not shown), and calender rollers 102, 103 driven by a shaft 109 and mounted on a carriage 104 slidable on a rod 105. A unit 1103 fixed to the carriage 104 engages an archimedean screw 110 driven by the shaft 109 effects the reciprocation of the head 10 across the bridge portion 128 of the apparatus. Sliver to be coiled is led around a fixed bollard 114, laid on fingers 1121 on a flexible metal strip 112 and fed into a trumpet 111 through which it passes to the rollers 102, 103. One end of the strip 112 is secured to a bracket 1111 carrying the trumpet 111 and the other end is secured to a column 113 carrying the bollard 114. The strip 112 compensates for the variation of the distance between the bollard 114 and the tube wheel 101 to prevent the sliver being stretched unequally. To maintain the coiled sliver within the container two flexible metal closure ribbons 115 are attached to opposite ends of the carriage 104 and each passes over a guide 116 to an anchorage 117, a weight 118 being attached to the ribbon. To measure the length of sliver coiled an abutment 1191 on a gear 119 driven by the shaft 109 engages an abutment 1201 on a gear 120 after a predetermined number of revolutions of the shaft 109 so that the gear 120 is displaced to control a mechanism for moving the filled can as described in Specification 910,761.
Patent GB-380712-A (GB)
Title: Improvements in or relating to high frequency systems for use in wireless signalling
IPC: H03B5/18
Filed: 1932-02-20
Abstract: 380,712. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London. -(Assignees of Conklin, J. W., and Finch, J. L. ; c/o R. C. A. Communications, Inc., Bolinas, California, U.S.A.) Feb. 20, 1932, No. 5145. Convention date, March 21, 1931. [Class 40 (v).] In a high frequency stabilizing system of the type employing a transmission line which is long relative to the working wavelength, the frequency stabilizing line includes a length of transmission line which is also employed to transfer energy from the high frequency apparatus to the aerial. Fig. 1 shows a high frequency oscillator system the output of which is led to the aerial through a transmission line ' 6 from which connections are led back to the oscillator input through a line 8 for controlling or stabilizing the oscillator frequency. The total line length between input and output sides of the oscillator is a whole number of half wavelengths and is adjusted by a slider 10 ; the line 6 may also have a similar adjustment. The system is aperiodic, standing waves being prevented by earthed terminal resistances 26, 28 of impedance equal to the surge impedance of the line Alternatively a resonant stabilizing line may be employed by utilizing the transmission line connecting the oscillator to a directive antenna system and enabling the standing waves produced by omitting any existing impedance matching devices to give a frequency stabilizing effect due to phase shift between incoming and reflected waves, Fig: 2 (not shown). In a further modification the aperiodic and resonant systems are combined as shown in Fig. 3, in which part of a transmission line 74 connecting the transmitter to a directive antenna 70 is utilized as a resonant part of the stabilizing line of which the line 80 forms the aperiodic section. As it is desirable to feed the line 74 at a voltage nodal point, the line length is necessarily a whole number of half wave-lengths plus or minus a quarter wave-length. This length is incorrect for the stabilizing line, and the effect of the quarter wave-length variation is compensated by changing the phase by 90‹ through small condensers 76. The line 80 is adjusted by sliders 82. In all cases it is essential that all feed-back from the output to input side of the oscillator shall be prevented which is effected by screening or using screen-grid valves as in Fig. 1 or by neutralizing as at 78, Fig. 3. Specifications 318,619. [Class 40 (v), Wireless signalling &c.], 342,976, 358,264, 373,692, and 375,698 are referred to.