baber/WOPTO huggingface dataset:
Patent GB-1259984-A (GB)
Title: Improvements relating to rotary positive-displacement machines
Inventor: HOTTA KOJI
IPC: F01C1/12
Filed: 1969-01-13
Abstract: 1,259,984. Toothed gearing. OVAL KIKI KOGYO K.K. 13 Jan., 1969, No. 1889/69. Heading F2Q. [Also in Division F1] A rotary positive-displacement fluid-flow meter has a pair of intermeshing substantially elliptic gear-rotors 1, 1<SP>1</SP> on fixed axles 3, 3<SP>1</SP>, the rotor 1<SP>1</SP> being coupled to an output shaft 8 by non-circular gears 6, 6<SP>1</SP> and reduction gears 7. The gears 6, 6<SP>1</SP> effect rotation of the shaft with uniform angular velocity and may comprise thin gear members 12 secured by rivets 14, a plastics bonding-agent, screws, bolts or welding. Equations to the pitch curves of the gears 6, 6<SP>1</SP> are given in the Specification.
Patent GB-251011-A (GB)
Title: Improvements in, and relating to, fluid-pressure presses, particularly applicable for spreading metal blanks into any required shape
IPC: B21J9/12
Filed: 1925-01-21
Abstract: 251,011. Craven, J. M. F. Jan. 21, 1925. Addition to 205,538. Fluid-pressure presses as described in the parent Specification are provided with means for limiting the stroke of the movable die 13 for ejecting the wheel or other blank, and for returning all the die-parts 13, 20, 19 and 18 to the initial position. The limiting means comprises a stop 31 carried by a rod 28 and bridge 30 and adjusted by inserting distance pieces or by using end pieces 31 of different length. The means for ejecting the blank and returning the die 13 comprises a portion 25 of the fixed die 12 which can be moved down by a piston 23 in a fixed hydraulic cylinder 14.
Patent GB-1335680-A (GB)
Title: Rate discrimination circuit
IPC: A61N1/368
Filed: 1970-12-15
Abstract: 1335680 Frequency detectors; transistor oscillators AMERICAN OPTICAL CORP 15 Dec 1970 [15 Dec 1969] 1933/73 Divided out of 1335679 Headings H3A and H3T [Also in Division A5] The disclosure is substantially identical to that in Specification 1,335,679, but the claims relate to a rate discrimination circuit comprising means for detecting the occurrence of each of a plurality of events, a capacitor 49, a charging resistor connected in series with said capacitor, means for applying a current pulse to said capacitor in response to each operation of the detecting means, a discharging resistance connected to said capacitor for discharging the capacitor and an output circuit operative in response to a rise in potential across said capacitor greater than a predetermined value, said charging and discharging resistances including a common resistance path 38, 42 having a first impedance for current charging said capacitor and a second impedance lower than the first impedance for discharging current from said capacitor. Received positive or negative pulses are amplified by transistors T1, T2 operating in class A and are fed to switching circuit T3, T4, T5. Transistor T4 conducts on receiving negative pulses, and transistor T3 and phase inverter transistor T5 conduct when transistor T3 receives positive pulses. When the charging pulses for capacitor 49 are spaced apart sufficiently the voltage swing across capacitor 49 between charging and discharging through diode 42 (effectively shorting resistor 38) and resistor 47 is sufficient to cause transistor T6<SP>1</SP> to conduct and also transistor T6 to conduct if switch S is closed, thereby discharging capacitors 57<SP>1</SP>, 57. The circuit components are chosen so that transistors T6, T6<SP>1</SP> conduct in response only to signals at terminals E1, E2 having a repetition rate about that of natural heart beats and frequency components above about 20 Hz but not much above 30 Hz. Resistors 45 and 38 are chosen so that the charging time constant for capacitor 49 is long enough to avoid causing transistors T6, T6<SP>1</SP> to conduct if a single narrow R.F. signal is picked up, and to avoid causing transistor T6 to conduct in response to a signal on terminals E1, E2 caused by a pulse at terminals E3, E4. In the absence of inhibiting signals at the base of transistor T6, or if switch S is open, transistors T7, T8 and capacitor C57 form a free running relaxation oscillator and capacitor 57 charges through resistors 35, 37 until transistors T7, T8 and T9 conduct to discharge capacitor 65 via terminals E1, E2 to produce an output pulse. Resistor 37 controls the pulse width, and resistor 35 the repetition rate.
Patent GB-212693-A (GB)
Title: Improvements in or relating to power transmission-apparatus for motor-driven vehicles
IPC: B62D11/18
Filed: 1923-01-22
Abstract: 212,693. Variable Speed Gear, Ltd., and Ingoldby, M. K. Jan. 22, 1923. Differential driving.-Endless-track and other motor vehicles are driven from an engine A through differential gear B<x> and shafts B, B', these shafts being inter-connected through hydraulic mechanisms C, C<1> whereby the relative speed of the shafts is varied to steer the vehicle. In the construction shown, the hydraulic mechanism comprises units of variable stroke adapted to act either as pumps or motors, the stroke being governed by tilting boxes c controlled by a hand-wheel D. When the boxes are parallel the fluid circulates idly through both units, and the shafts B, B<1> rotate at the same speed, but as the boxes are tilted in opposite directions one unit is checked as it endeavours to pump more fluid than the other unit will deal with. In the limit position in each direction one unit and the corresponding shaft B or B<1> are stopped, the others being free to rotate.
Patent GB-435615-A (GB)
Title: Improvements in or relating to separation of liquids
IPC: C07C201/02
Filed: 1934-01-19
Abstract: <PICT:0435615/IV/1> Liquid nitric esters, e.g. nitro-glycerine, are separated from acids used in their manufacture or from washing liquids used in their purification by passage through a vessel fitted with a continuous baffle in the form of a strip 2 wound edgewise and with a radial inclination around a vertical axis so that the outer edges of the turns of the strip touch or are close to the wall of the vessel.  The mixture is admitted through an inlet 4 and the lighter and heavier are discharged through outlets 6, 5 respectively.  The baffle may be inclined radially downwards or upwards.  The inner edge of the baffle may not extend to the axis in which case a central axial passage is formed through which the lighter or heavier liquid passes to the upper or lower end of the vessel.  The edges of the baffle may be flanged, the flanges in some cases being sufficiently deep to close the space between the turns of the spiral.  The vessel may be fitted with internal cooling coils or a cooling jacket.
Patent GB-1451875-A (GB)
Title: Electric rocker switches
IPC: H01H23/20
Filed: 1974-01-16
Abstract: 1451875 Snap-action switches Y WESSEL 16 Jan 1974 [18 Jan 1973] 02008/74 Heading H1N A bi-stable electric rocker switch capable of being connected in an electric cord with contacts S1, S2 connected to the ends of a break in a wire of the cord has a snap mechanism comprising the contact S1, elongate member F and member K attached to the rocker V, at least one of these being elastically deformable to provide the snap action. In Fig. 1, tongue T of member K is elastic. In a modification, Fig. 2 (not shown) member F is also elastic. In a further modification, Fig. 3 (not shown) tongue T and member F are rigid, and contact S1 is elastic, comprising a U-shaped spring one leg of which is fixed and the other leg forming a pivot for member F. The cover D1, D2, Fig. 4 (not shown) is ultrasonically welded to the cover L of the cord.
Patent GB-1106633-A (GB)
Title: Improvements in or relating to a double sealing closure device for bottles
IPC: B65D51/28
Filed: 1967-01-16
Abstract: 1,106,633. Plastic bottles; stoppers &c. P. HILDEBRANDT. 16 Jan., 1967 [20 Jan., 1966], No. 2183/67. Headings B8D and B8T. A plastics spray bottle has a cup-like insert plug 5 with a spray tube 11 closed by a diaphragm 12 and a cap 7 also closed by a diaphragm 10. When the closure cap 4 is screwed into position, a piercer 15 on its inner surface pierces the diaphragms 10, 12 and rests sealingly against the edges 16, 17 of the apertures, in order to prevent liquid 6 in the cup-like insert 5 and that in the bottle from mixing. For spraying, the closure cap 4 is removed, the bottle is inverted and is squeezed, so that the liquid in the bottle mixes with the liquid 6 in a mixing chamber 13 as the mixture is sprayed out.
Patent GB-1434183-A (GB)
Title: Devices to be locked in wall cavities
IPC: F16B13/10
Filed: 1975-01-17
Abstract: 1434183 Wall plug K TAKAHASHI 17 Jan 1975 [28 Aug 1974] 2212/75 Heading F2H A device to be locked in a wall cavity comprises a tubular member 1 having slits 9 at one end to permit radial expansion thereof, and a spreader 2 supported from a frangible diaphragm 3 at the other end, a restricted opening 8 shaped to co-operate with the spreader being formed at the slit end of the tubular member. In use, a punch 14 may be used to break the diaphragm and drive the spreader into the slit end of the tubular member to expand the latter into engagement with the wall cavity. The spreader may be adhesively attached to the diaphragm and may be provided with a flange 11 to limit inward movement thereof, and an indentation 12 axially aligned with a mark on the diaphragm. The upper bore of the tubular member may be provided with a screw thread 6 for engagement with a bolt or a screw, and the lower outer surface of the member may be provided with a screw thread 10 or corrugations to ensure firm engagement with the surface of the cavity. The upper part of the tubular member may be provided with a flange 5 to engage the mouth of the cavity. The opening 8 may be formed in a stepped part 7.
Patent GB-231969-A (GB)
Title: Improvements in self-starting synchronous motors
IPC: H02K19/12
Filed: 1924-01-28
Abstract: 231,969. Crompton & Co., Ltd., and Burge, H. O. Jan. 28, 1924. Alternating-current induction machines; exciting.-In order to reduce the exciting current by reducing the angular spread of the exciting winding, the secondary member of an inductionsynchronous machine is provided with two separate windings A, B disposed at 90‹ to one another and brought out to four terminals, and the exciter is permanently connected between the inner end of one phase the neutral point. The machine is started as an induction motor, and after the resistances R<1>, R<2> have been cut out, phase A only receives current from the exciter E, while phase B is short-circuited on itself. The rotor or stator may be the secondary member, and the exciter may be embodied in the primary member.
Patent GB-611527-A (GB)
Title: Improvements in or relating to the control of driving means including electric motors
IPC: H02K27/12
Filed: 1946-01-23
Abstract: 611,527. Dynamo-electric machines. REYROLLE & CO., Ltd., A., HIBBERT, J. W., ROBERTSON, A. T., and BEVERIDGE, C. Jan. 23, 1946, No. 2242. [Class 35] [Also in Group XXXVII] In order to obtain a creeping speed for printing presses and the like, an induction machine C is mechanically coupled to a main driving member B and is supplied with polyphase current of such frequency that it produces a motoring torque at standstill which falls rapidly to zero in the neighbourhood of the said creeping speed, and thereafter produces rapidly increasing braking-action. The main driving machine produces a substantially constant or slightly decreasing torque over the range from zero to creeping speed and may be a polyphase shunt commutator motor supplied at normal frequency. The induction machine is supplied at a lower frequency and assists the main machine to overcome the initial frictional resistance. A stable creeping speed is obtained when the main machine exerts a torque slightly greater than the frictional resistance and the induction machine exerts a small braking torque, so that when the latter is disconnected there is no danger of the driving arrangement slowing down or stopping. The two machines may be incorporated in a common yoke and may have a common -core with separate windings which are mutually non-inductive, the normal-frequency winding being wound for eight poles and the lowfrequency winding for four poles. The armature is wound for eight poles and is provided with cross-connections in which the eight-pole field produces no current, but with which the fourpole field co-operates to provide operation as an induction machine (Figs. 4 and 5, not shown). The two machines may have common windings which are arranged in bridge circuits, each comprising four arms so balanced that the connections for the low-frequency supply are at substantially equipotential points with respect to the normal-frequency supply, and vice versa. These windings may be arranged on core projections so as to provide the pole arrangements mentioned above (Figs. 6 and 7, not shown). The stator of the induction machine may be rotatable to provide means K for switching off that machine at an appropriate speed. A separate machine may perform this function or the switch may be operable by the gearing coupling the two machines. The induction machine may be supplied with direct-current for braking.
Patent GB-607006-A (GB)
Title: Improvements in or relating to the cooling of liquids in receptacles, particularly applicable to the cooling of milk in churns
IPC: A01J9/04
Filed: 1946-01-23
Abstract: 607,006. Cooling milk &c. SEARLE, R., BRIGINSHAW, F. F., and HEFFORD, A. E. Jan. 23, 1946, No. 2243. [Class 29] Liquid such as milk in bulk containers, e.g. churns 3 is cooled by a stream of air impinging upon the top of the container and guided around the side walls of the container towards its base. A fan 5 in the upper part of a closed chamber 1 forces air over a refrigerator unit 6 into a compartment 8 from which it passes to hoods 9 closely surrounding the upper parts of the churns 3. After passing over the churns the air rises through the outer part of the chamber 1 and returns to the fan 5. The churns are inserted through hinged flap doors 2 and each hood 9 is divided into two parts one of which is fixed to the inside of the door so as to be lifted when the door is opened. Flaps 11, also fixed to the doors, close the air supply to each hood when its door is opened. The doors and hoods may be slidable instead of hinged. In a modification, the fan is housed in a central compartment between the churns, and the hoods are .omitted.
Patent GB-192276-A (GB)
Title: Improvement in the construction of oars or sculls
IPC: B63H16/04
Filed: 1922-01-25
Abstract: 192,276. Ayling, G. J. Jan. 25, 1922. Oars of the tubular type having one or more cavities C, D are stiffened by positioning a piece E of three-ply wood or metal between the sections of the oar and abutting the edges of the grooves.
Patent GB-368917-A (GB)
Title: Combined foot rest, receptacle for brushes and polishes, and seat
IPC: A47L23/16
Filed: 1931-01-23
Abstract: 368,917. Foot-rests. WILLIAMS, T. H., 4, Bath Street, Lytham, Lancashire. Jan. 23, 1931, No. 2259. [Class 52 (ii).] A stool convertible into a support for shoe cleaning comprises a rectangular box A, on supports a, with its front end a<1> lower than the back a<2>, and its sides higher than the front. An extension B controlled by a spring b is hinged to the front a<1>, whilst a lid or cover C, hinged to the back, is of L-shaped design, one arm forming a false front in one position (Fig. 1), the other arm bearing a strip of fabric E and forming the seat. A shoe rest c<2>, c<3> is affixed to the false front, and when the cover C is raised, the extension B turns up to support it under the projection c<1>, the cover E at the same time falling down and pulling into position a tray H for the brushes. A projection b<2> fitting into the slot e<6> is used for bringing the cover to the foot-rest position and a handle F is attached to the sides for carrying purposes. The interior of the box is partitioned to form a receptacle for brushes &c.
Patent GB-1153963-A (GB)
Title: Portable Longitudinal Bulkhead Or Shifting Board For Ships Carrying Bulk Goods
Inventor: SCHUMMER NILS
IPC: B63B25/24
Filed: 1968-01-16
Abstract: 1,153,963. Shifting boards and grain fillers. WARNOWWERFT WARNEMUNDE VEB. 16 Jan., 1968, No. 2297/68. Heading B7S. The lower edge 5 of a portable longitudinal bulkhead or shifting board of flexible material attached to a substructure is other than a straight line (for example is polygonal or arcuate) for a distance extending over several vertical cables or strips 2 forming parts of the substructure, members 7 for fixing the bottom of the bulkhead in position are attached only at the lowest parts 6 of the lower edge 5, and the cables or strips of the substructure and also the fixing members, or parts thereof, consist wholly or partially of material with great elasticity, e.g. rubber or polyamide. The construction of the lower edge can be applied to the top edge 4 and the bulkhead used for the walls of cargo filling shafts.
Patent GB-629115-A (GB)
Title: Poles for telegraphic and like overhead transmission and for similar purposes
IPC: H02G7/20
Filed: 1947-01-24
Abstract: 629,115. Extruding pipes. DOWSETT, H. L., and DOWSETT ENGINEERING CONSTRUCTION, Ltd. Jan. 24, 1947, Nos. 2329 and 2938. [Class 87 (ii)] [Also in Groups X and XXII] Poles of the form having the cross-section shown in the Fig. are produced from aluminium or light alloy, plastics or concrete by horizontal extrusion and the extruded pole or pole section is received on a travelling band or on a movable platform and the upper, inner wall of the extruded hollow pole is received on a long bar or shaped bracket or ridge from which it is subsequently removed.
Patent GB-446700-A (GB)
Title: Improvements in joint-making gaskets
IPC: F16J15/08
Filed: 1935-01-24
Abstract: 446,700. Joint - making packing. DICKSON, J. G., Glencoe, Illinois, U.S.A. Jan. 24, 1935, No. 2387. [Class 122 (iii)] A joint-making packing comprises three or more metal laminations rigidly secured together. The aligned openings for the cylinders and water are of different sizes, and the laminations are secured by turning up the bottom sheet 9 through the openings and securing it with upper flanges, or by metal grommets. A gasket for an internal-combustion engine has cylinder openings 12, water holes 24, and apertures 13 for studs and bolts. The lamination 23 has a larger opening 14 ; the other laminations are crowded together at 16 and secured by the holding means. The laminations are sometimes bevelled at the edges 10, 14 by the shearing cuts. The flange 17 or the grommets may be thicker than the laminations with the larger apertures 14. The laminations may be secured at spaced intervals by rivets, pins, or grommets, the laminations and the heads of the rivet or grommets being tapered at the places of contact.
Patent GB-589370-A (GB)
Title: Improvements in and relating to panic bolts and the like
IPC: E05B65/10
Filed: 1945-01-31
Abstract: 589,370. Panic bolts. EDSON, A. D., and TULL, L. S. Jan. 31, 1945, No. 2440. [Class 44] In an. emergency exit fastening having two vertical bolts 5, 6, the lower bolt 6 is held in its retracted position but the upper bolt 5 is returned to its shot position when the door is opened, the upper bolt being first retracted and then shot into engagement with its socket, when the door is again closed, by engagement of its end with a striking plate 35, Fig. 1, the last part of the retraction movement or the shooting movement after such retraction being utilized to release the lower bolt from its retracted position, so that both bolts engage their sockets automatically on closure of the door. As shown, the lower bolt is raised by an arm 15 of the lever 'on the other arm 14 of which the usual crush- 'bar 9 is mounted. The bolts 5, 6 have tailplates, 11, 12 respectively, slidably guided in a casing 8, arm 15 engaging a lateral recess 16 in plate 12. The bolts are biassed to shot position by compression springs 26. A lever 19 pivotally mounted on a fixed pin 17 carried by the casing has a pin 20 near its lower end engaging in a slot 21 in plate 12, whilst its upper end is rounded and has a claw 22 normally engaging the hooked lower end of a catch 23 pivoted on plate 11 and biassed towards a stop pin 24 by spring 25. When the lower bolt is raised lever 19 is rocked clockwise and at first retracts the upper bolt by its engagement with the catch 23. As the lower bolt reaches its topmost position lever 19 is rocked far enough for its rounded upper end to cam catch 23 out of engagement, thus releasing bolt 5 which is thereupon shot by its spring 26. The lower bolt is held raised by a spring-loaded pin 28 snapping out into engagement with a recess 27 in plate 12 after the rounded upper edge of the plate has cammed the pin inwards in passing. The pin is slidably mounted in a housing fixed to the casing 8, and has an enlarged head 30 which normally lies partly in the path of a pivoted member 31 mounted in and projecting from a slot in plate 11, the member being near the lower end of the slot so that it can rock upwards but not downwards. When on closing the door, bolt 5 is moved downwards by striking plate 35 member 31 rocks upwards and rides idly past head 30, but when the bolt is subsequently shot upwards member 31 engages behind the head 30 to cam the pin 28 out of engagement with recess 27 thus allowing bolt 6 to be shot by its spring 26. When the upper bolt is retracted by push bar action and is then re-shot as described above, if the door has not meanwhile been opened far enough to avoid its re-entry into socket 7, such re-entry is prevented by a sliding spring-loaded coverplate 37 which moves to cover the mouth of the socket as soon as the bolt is retracted. When the door is again closed, the end of the bolt slides along the striking plate and engages the edge of the cover-plate to push it clear of the socket and allow the bolt to enter.
Patent GB-905948-A (GB)
Title: Feeding device for packing machines
Inventor: LESCH HANS
IPC: B65B35/46
Filed: 1959-01-23
Abstract: 905,948. Wrapping-machines. HANSEL jun. G.m.b.H., OTTO. Jan. 23, 1959, No. 2518/59. Class 94(1). The feed plate for a confectionery &c., wrapping machine comprises separately driven rings each having one or more peripheral rows of openings. As shown, two differently shaped articles 4<SP>1</SP>, 61 are fed from a divided hopper 24, 25 by vibratory means to rings 5 and 3 respectively. Walls 18, 19, 28, 30 and brushes 29, 31 prevent mixing of the different articles, and return articles not pocketed in the usual manner. Plates 33, 34 bridge the apertures in the inner ring so that articles from the outer ring may return. The walls 19 are attached to the walls 18 by clips &c. 20. The rings are driven intermittently at different speeds so that two apertures are aligned with an ejector 32 at each halt. Each ring may feed a separate wrapping machine.