baber/WOPTO huggingface dataset:
Patent GB-226986-A (GB)
Title: Improvements in machinery for preparing fibrous materials
IPC: D01G15/06
Filed: 1924-01-23
Abstract: 226,986. Hilton, J. Jan. 23, 1924. Addition to 207,008. Burring-apparatus ; carding-engines ; openers &c. -One or more roller-devices A, B, of the kind described in the parent Specification, deliver the material to Garnett rollers c, e and burring- rollers d, f, whereby both sides of the fleece are treated. The fleece is taken from the roller e by a stripper h and fed by a conveyer i, or by suction over a grid to cage-rollers, to one or more other roller-devices C, D. A comb m strips the fibre from the last roller D, whence it is led to rollers n, o and formed into a web or sliver ready for combing, thus dispensing with the usual carding-engine. The arrangement may be used without the second series of roller-devices as a burring. machine.
Patent GB-881335-A (GB)
Title: Oxidation catalyst and their use in the oxidation of olefines
Inventor: HENDRICKX ANTONIN
IPC: B01J23/31
Filed: 1960-01-19
Abstract: Catalysts used for the oxidation of olefines containing the structural unit CH3-C=C to the corresponding unsaturated aldehydes consist of a mass of oxides of As, Bi and Mo, which may be distributed on a support such as colloidal silica, carborundum or calcined clay.  The catalysts may be heated to above 300 DEG C. in presence of air or oxygen before use.  The oxidation reaction may be carried out in the presence of oxygen or an oxygen-containing gas such as air; if no oxygen or insufficient oxygen is present, the catalyst is reduced and is regenerated by heating in presence of air or oxygen at above 300 DEG C.  In a comparative example, use of a catalyst comprising Bi and Mo oxides on colloidal silica is described.ALSO:Catalysts used for the oxidation of olefines containing the structural unit CH3-C=C to the corresponding unsaturated aldehydes consist of a mass of oxides as As, Bi and Mo, which may be distributed on a support such as colloidal silica, carborundum or calcined clay.  The catalysts may be heated to above 300 DEG C. in presence of air or oxygen before use.  The oxidation reaction is effected at an elevated temperature, e.g. 300 DEG C.-600 DEG C., and the alefine may be admixed with an inert gas such as N2, CO2 or H2O vapour or mixtures thereof.  The reaction may be carried out in the presence of oxygen or an oxygen-containing gas such as air; if no oxygen or insufficient oxygen is present, the catalyst is reduced and is regenerated by heating in presence of air or oxygen at above 300 DEG C.  In examples, propylene is oxidised to a product which is largely acrolein, but contains also a small amount of acetaldehyde.  In a comparative example, use of a catalyst comprising Bi or Mo oxides on colloidal silica is described.
Patent GB-1294521-A (GB)
Title: Lampholder
Inventor: LOWE JOHN ARTHUR
IPC: H01R33/09
Filed: 1970-01-15
Abstract: 1294521 Lamp holders CARR FASTENER CO Ltd 30 Nov 1970 [15 Jan 1970] 1983/70 Heading H2E  A wedge-base lamp holder comprises an insulating resilient, semi-rigid plastics body having terminal slots 7, 8 to receive the base portions 12 of terminals, Fig. 4, a resilient contact arm 17, a lamp retaining arm 16, and a mounting arm 13 being formed on each contact. A tongue 20 retains the contact within the housing defined by the slots and the guide ribs 6 and the contact arm 17 of one contact is opposite arm 16 of the other contact. When mounting the holder in a printed circuit the rib 11 abuts the underside of the board and the flanges 1a, 2a and the arms 13 extend through the board, the bowed portion 14 latching over the surface of the board and making electrical contact with suitably placed conductors. The resilience of the housing and ribs 9 help the arms 13 to hold the mounted holder secure. Alternatively, a separate power source may be used, the contacts being modified, Fig. 8 (not shown), to accept connectors inserted through the passages 8a, 7a.
Patent GB-562501-A (GB)
Title: Improvements in and relating to rotary engines
IPC: F02B53/00
Filed: 1942-10-29
Abstract: 562,501. Rotary engines. FARESO, SEN., J., and OWEN, B. J. CRADOC-. Oct. 29, 1942, No. 1997/44. Divided out of 562,478. Drawings to Specification. [Class 110 (ii)] An internal-combustion engine of the rotary abutment type has two sets of co-operating rotors, side-by-side, on the same working shafts, which are geared together. One set acts as a compressor and delivers compressed gas to the second (engine) set by way of ducts in the separating wall. The supply of working fluid is controlled by a rotary valve disc in the wall, the-disc having an arcuate slot. Details of the 'engine are described in Specification 562,478.
Patent GB-933693-A (GB)
Title: Improvements relating to elevating platforms and the like particularly for workmen
Inventor: GEARY SPENCER FERNLEY
IPC: E04G1/18
Filed: 1960-01-20
Abstract: 933,693. Mobile platforms for workmen. WHARTON ENGINEERS (ELSTREE) Ltd. April 20, 1961 [Jan. 20, 1960], No. 2020/60. Class 20 (2). A platform 6 for workmen is mounted on a boom 4 which is pivotable about a pivot 40 on a turntable 10, the platform being maintained horizontal during raising by links 45 and steps 51, Fig. 7, also being similarly maintained horizontal and providing access to the platform at all stages of raising. The steps 51 are pivoted at one end between the two members 42 forming the boom 4 and are pivoted at the other to links 52 pivoted at either end to the turntable and the platform. The platform 6 is rotatable by means of a hand wheel and endless chain on a turntable on the frame 5 by which it is pivotally mounted on the end of the boom and links 45. Rollers on the turntable engage above, below and on the circumference of a machined ring 8, Fig. 4 (not shown), on the base, two further rollers one engaging the top of the ring below the boom and the other beneath the ring opposite the boom assist in taking the weight of the boom. Mounted on the turntable 10 are an engine and hydraulic pumps for raising the boom by rams and turning the turntable either way by an hydraulic motor. The rotation of the turntable may be by hand and may be limited by stop valves. A decelerator valve prevents dangerous pressures in the hydraulic system due to the momentum of the turntable if the control valve is abruptly closed. The turntable is held by a brake automatically controlled by the control valve. A hand pump may be used to operate the rams for raising the boom. A ratchet, Fig. 12 (not shown) prevents collapse of the boom. The boom and turntable may be controlled from the platform 6. The apparatus is mounted on a railway truck 1.
Patent GB-466409-A (GB)
Title: Improvements in or relating to lace curtains
IPC: D04C1/08
Filed: 1935-08-26
Abstract: 466,409. Lace curtains. PATCHOGUEPLYMOUTH MILLS CORPORATION. Aug. 26, 1935, No. 2141/37. Convention date, Aug. 27, 1934. Divided out of 461,978, [Group XIV] [Class 74 (i)] [Also in Group XIV] In lace curtains of the kind described in Specifications 424,984, [Group XIV], and 461,978 having at the top a plurality of spaced horizontal rows of eyelets for adjustment of the hanging length, the warp threads are pillared in groups 50 in the openwork body of the curtain and in the top portion are alternately separated to form horizontal bands 13 of relatively finer network each such band containing a horizontal row of eyelets 16 and then repillared in groups between the bands to form panels of open network.
Patent GB-1575972-A (GB)
Title: Polyester fabric for use as a backing material in coated abrasive product produced therewith
IPC: B24D3/28
Filed: 1977-01-20
Abstract: The fabric contains a polyester, it has undergone heat setting and relaxation, and its dimensions are stabilised in the warp direction, for which reason it has an extension less than 6.5 % for a tensile strength of 300 N per linear cm of width. Manufactured by the method, the fabric retains the desired width. It can be used for manufacturing abrasive strips and belts, which have a support fabric (20) made of polyester. A filling layer (22) is formed on its lower face, then a finishing layer (24) is formed on the latter. A filling layer (26) is formed on its upper face, then a prefinishing layer (28) is formed on the latter, which prefinishing layer itself carries a holding layer (30) in which the abrasive grains (32) are embedded, covered with a finishing layer (34). <IMAGE>
Patent GB-885804-A (GB)
Title: Process for the production of refractory spinel material
IPC: C04B35/01
Filed: 1960-01-21
Abstract: A refractory spinel is prepared by burning at 1,450 DEG C.-1,550 DEG C. a gelled mixture of activated magnesia and activated alumina in the proportion of 28,2 MgO-71,8Al2O3.  The activated magnesia has a specific surface area of above 20 sq. metres/grams. and less than 3% impurities, particularly less than 2% CaO and 0,2% Na2O, and may be prepared by heating sea water, magnesia hydrate or natural or synthetic magnesium carbonate to 400-800 DEG  C.  The activated alumina is a g -alumina having a specific surface area of at least 10 sq. metres/gram., and is in the form of flakes having a thickness of less than 1/10 microns.  It must contain less than 1% impurities, and in particular less than 0,5% of Na2O, K2O and CaO taken together. The activated alumina may be obtained from a monohydrated alumina, e.g. a bohmite obtained by a hydrothermal reaction, by thermal dehydration, or, preferably, by dehydrating an alumina trihydrate in a fluidized bed at 300 DEG  C.-800 DEG  C.  The alumina and magnesia may be activated separately or after mixing.  The mixture may be converted into a gel by grinding with cold water, for example in a ball mill.  Other materials may be added to the mixture, for example sintered magnesia, corundum, zircon, zirconia, and chromite.  To obtain porous and insulating refractory bodies, materials which decompose, or boil, or react with the mixture, to give gases, may be added, for example sawdust, coke, naphthalene, cork, and expanded synthetic resins.ALSO:Process for the production of a fractory spinel comprises burning at a temperature of 1450 DEG  to 1550 DEG C. a gelled mixture, prepared by milling, of equivalent quantities of activated magnesia and alumina, in the same proportions as in the spinel MgO, Al2O3, i.e. about 28,2% MgO and 71.8% Al2O3 by weight. Other compositions may be introduced into the paste such as sintered MgO, corundum, zircon, ZrO2 and chromite.  To obtain porous and insulating refractory bodies, materials which boil, or decompose, or react with the mixture to give gases may be added before sintering; such materials include sawdust, coke, naphthalene, cork, and expanded synthetic resins.
Patent GB-747041-A (GB)
Title: Improvements in or relating to latch mechanisms
IPC: E05B65/19
Filed: 1954-01-26
Abstract: 747,041. Latches. FORD MOTOR CO., Ltd. Jan. 26, 1954 [Jan. 28, 1953], No. 2399/54. Class 44. In a latch mechanism of the rotatable bolt type for use on a motor, vehicle luggage compartment lid, a rotor 54 forming the bolt is pivotally mounted within a housing 21 secured to the lower portion of the luggage compartment lid and is completely enclosed except for a relatively small slot 43 through which a tooth 56 of the rotor projects for engagement by a striker 58 mounted on a fixed body part. The tooth is engaged by a bar 57 on the striker which is carried by a pair of legs 66 and these legs and a shield 51 on the housing prevent a tool being used to force the latch. Unlatching movement of the rotor is prevented by a pivotally mounted spring-loaded pawl 71 which engages one of its teeth and this pawl is connected by a link 84 with,a crank arm attached to a cylinder lock barrel (not shown) so that when the barrel is rotated by a key, the pawl releases the rotor so that the lid can be opened. The striker is adjustably secured to the vehicle body and has a serrated rear gripping face.
Patent GB-1417912-A (GB)
Title: Well logging methods and apparatus
IPC: G01V1/48
Filed: 1973-01-17
Abstract: 1417912 Acoustic well-logging SCHLUMBERGER INLAND SERVICES Inc 17 Jan 1973 [19 Jan 1972] 2454/73 Heading H4D Reliable detection, in a well-logging system, of the acoustic signal received after transmission through the borehole formations is achieved in the presence of noise by setting a detection threshold amplitude for the received signal and varying this threshold automatically in accordance with the noise level as measured in an interval preceding the acoustic transmission instant. In the embodiment described a logging tool includes one transmitter and two spaced receivers. During a transmit-receive cycle the output of the receiver furthest from the transmitter is AGC-amplified then fed uphole together with a counterpart of the transmission pulse. The counterpart signal is detected uphole in a fixed-threshold circuit and used to start the counting of clock pulses. The second half-wave of the received signal from the formations is detected uphole by a circuit with a threshold set just above the peak noise level measured in a gate interval preceding the acoustic transmission. This half-wave is used to stop the counting, and also to derive a voltage which is fed downhole to control the gain of the AGC amplifier. During the following transmitreceive cycle the output of the other receiver is used in a similar manner to set the threshold, provide an AGC control voltage and control the counting, but in this ease the counter counts backwards. Thus, after two cycles the accumulated count represents the difference in propagation times of acoustic waves from the transmitter to the two receivers. This count value is logged, as a function of tool depth, in a digital and/or analogue (galvanometer-type) recorder. Modified logging tools may include either a single transmitter and a single receiver or a plurality of transmitters and receivers.
Patent GB-1506140-A (GB)
Title: Butterfly valves
IPC: F02M3/06
Filed: 1977-01-21
Abstract: 1506140 Throttle valves ROBERT BOSCH GmbH 21 Jan 1977 [24 Jan 1976] 02464/77 Heading F1B [ Also in Division F2] A butterfly throttle 2 for spark ignition, internal combustion engines has an axially bored spindle 4 containing a by-pass valve 30 controlled by a bi-metal spiral 36 heated by an electric coil 37 energized simultaneously with the ignition circuit. The by-pass valve may be a rotary valve as shown or a piston valve Fig. 1 (not shown).
Patent GB-1329071-A (GB)
Title: Bowl lift jack mounting for a tractor-earthmoving scraper combination
IPC: E02F3/65
Filed: 1971-01-19
Abstract: 1329071 Bowl type earth scrapers CATERPILLAR TRACTOR CO 19 Jan 1971 [9 Feb 1970] 2524/71 Heading E1F A tractor and a wheeled scraper bowl are connected by a draft frame whose spreader tube, supporting arms pivoted to the bowl, has a gimbal connection with two bowl lift jacks each connection comprising a spindle extending through the tube and supported for rocking movement about an axis parallel to the longitudinal scraper bowl axis. The connection shown has spindle 34 supported for rocking movement in bearings 36, 38 in tube 40 extending through spreader tube 22 and has yoke 62 on whose two journals 64 are pivoted brackets 66 attached to the base of hydraulic jack cylinder 20. Piston rod 76 has a ball and socket connection 80 with bowl beam 84. The rocking of shaft 34 is limited by the engagement of a flat on shaft end plate 44 with lug 48. Reinforcing webs 54, 56 are welded to tubes 22, 40.
Patent GB-585501-A (GB)
Title: Improvements relating to garment hangers and garment hanger supports
IPC: A47G25/06
Filed: 1945-02-02
Abstract: 585,501. Garment hangers. BROOKS & CO., Ltd., J. B., and BISSELL, A. T. Feb. 2, 1945, No. 2645. [Class 52 (v)] The inner section 2 of a telescopic garment rail can be secured in its unextended position by rotary movement to engage lugs 5 on the inner end behind stops 11 formed on the attachment plate 3. The hooks 13 on the associated garment hangers 12 have restricted entrances 14a so that they can pass only over the inner section 2 and cannot be removed from the outer section 1 when the rail is unextended.
Patent GB-331891-A (GB)
Title: System and apparatus for the electrodynamic operation of railway points, semaphores and the like
IPC: B61L7/08
Filed: 1929-01-26
Abstract: 331,891. Pacilli, E. Jan. 26, 1929. Distant control systems.-Railway points and signals are operated at a distance from a cabin by certain electric cables from a group, so that the number independently operated equals the number of combinations available, a common return being used. The local circuit has switches opened or closed by coils energized by the cables, so that all the selected cables must be energized to complete the circuit. In a points control, Fig. 4, the points 19 are operated by a motor 25 controlled by relay 17 and controller E from the controller D at the cabin. If D is rotated from A until arrows B, X coincide, contact 12 closes contacts 8 of cables II, III, IV so that both coils of relay 4 are energized to close switch 6, so that relay 17 is energized to close a holding-on relay and also prepare the following circuits-at switch 20 a track circuit 18, at switch 26 the motor circuit, at switch 23 the indicator circuit 32', and at switch 21<1> the consent circuit 21 which may instead be connected to the main cables. At the control D, the contacts 13, 15 complete the consent circuit 21, while contact 14 completes the control circuit 7. If the track is vacant, relay 27 actuates switch 28 in the consent circuit 21 to energize relay 29 and withdraw stop 37 from a spring stop 36 on the disc D. The disc is then moved to position C where it closes at 13' a circuit 38 so as to energize a relay 39 closing switch 40 in feed 24 to start the motor 25 and rotate pin 42 in the slot 43 of a connecting-rod coupled to the points, the contact 45 of disc E preparing the return circuits. At the end of the stroke, contact 46 closes circuit 32<1> to release stop 37<1> and allow disc D to be moved to A<1> where the handle can be removed for other operations. The coils 48, 49 form part of a recording apparatus 47 in the cabin to record the time and circuit of every current. The various combinations are operated in succession, and a mechanical lock may be provided, Fig. 6, consisting of rollers 53 sliding in guides 52 and passing only a certain number of wedges 54 secured upon rods 55 which actuate switches 57 in the main leads I - - IV and are operated by coils 56 from the control disc D.
Patent GB-1416819-A (GB)
Title: Sliding door structure
IPC: E06B7/23
Filed: 1973-01-19
Abstract: 1416819 Sliding doors V E ANDERSON MFG CO 19 Jan 1973 [20 Jan 1972] 2885/73 Heading E1J A sliding door structure comprises a fixed frame with a head having two downwardly extending fins 86, 80, a movable door panel 8 having a slot receiving fin 86, and a fixed door panel 14 extending between the fins, sealing means extending around both panels when closed. A seal (126 Fig. 4, not shown) seals the top of the movable panel when closed. The movable panel has a guide member 200 lining the slot. The movable panel is adjusted to fit the opening by an expander (124) and wedges (236, 238 Fig. 12 not shown) in the bottom rail of the panel. A screen 18 runs on rollers 66 and is adjusted to the opening by spring biassed roller assemblies (Figs. 22, 23 not shown). The movable panel may be held in a partially open position by catches (Figs. 30-35, not shown). A member (144, Fig. 7 not shown) prevents upward movement of the movable door when closed.
Patent GB-1460768-A (GB)
Title: Diversity radio reception systems
IPC: H04B7/02
Filed: 1974-01-23
Abstract: 1460768 Diversity radio reception SIEMENS AG 23 Jan 1974 [23 March 1973] 3054/74 Heading H4L In a diversity radio reception system, the combination of signals received on two diversity channels is controlled in accordance with the quotient of the useful signal level on one channel to that on the other, and the system provides an output signal having a constant effective level. The diversity signals are applied at 11a, 11b to respective channels including amplitude limiters 12a, 12b limiting the applied signals to the same level, controlled linear amplifiers 13a, 13b and demodulators 14a, 14b. The two diversity signals are fed to a control stage 17 which determines the quotient of the two useful levels by using logarithmic amplifier limiters 18a, 18b, diode rectifiers 19a, 19b and summer 20. The output from the stage 17 is a D.C. signal whose polarity indicates which diversity signal is greater and whose amplitude indicates the ratio of levels. The control signal is applied to the amplifiers 13a, 13b, which are differential amplifiers designed to have amplification factors 1/1 + V and V/1 + V respectively. The demodulated outputs from the amplifiers 13a, 13b and demodulators 14a, 14b are applied to a summing stage 15 to provide a constant effective level output on line 16.
Patent GB-141648-A (GB)
Title: An improved soft doll
IPC: A63H3/02
Filed: 1920-01-31
Abstract: 141,648. Hawkes, M. J. Bland-. Jan. 31, 1920. No Patent granted (Seading fee not paid). Balls.- A soft doll is formed with a spherical body so as to serve as a playing ball. The doll has a head 2 and flexible limbs 4, 5 attached to the body 1 by sewing.
Patent GB-764271-A (GB)
Title: Improvements in or relating to arc extinguishing devices in or for electric switch apparatus
IPC: H01H9/44
Filed: 1955-02-02
Abstract: 764,271. Arc-rupturing in switches. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Feb. 2, 1955 [Feb. 8, 1954; Feb. 8, 1954], No. 3066/55. Class 38(5) An arc-chute or arc box has at least its opposed side sections constituted by parmanent magnets formed of electrical insulating non-metallic permanent magnet material producing a magnetic field laterally within the box or chute. The material may be a mixed oxide compound selected from the group BaO.6Fe 2 O 3 , PbO.6Fe 2 O 3  and SrO.6Fe 2 O 3 . In Fig. 8 a double-break switch has an insulating arc box 9 with inserts 11, 13 of the permanent magnet material magnetized so as to produce a magnetic field across the gaps between the contacts. An arcing cup 33 of magnetic material may surround the lower part of a movable contact bridge 7 and the lower fixed contact 37 so as to confine and restrict the lower arc drawn between contacts 7 and 37 whilst the upper arc drawn between contacts 7 and 35 is extended and blown out by the magnetic field between the inserts. Figs. 1 to 7 (not shown) illustrate various arrangements in which the whole arc box is of the permanent magnet material. Notched grid plates of fibre, non-magnetic metal or ceramic may be provided. Specification 708,127 [Group XXXV] is referred to.
Patent GB-807133-A (GB)
Title: Improvements in or relating to lighting devices comprising a part made of glass
IPC: H01J5/08
Filed: 1956-01-31
Abstract: 807,133. Electric lamps; lighting fittings. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 31, 1956 [Feb. 2,1955], No. 3071/56. Drawings to Specification. Classes 39(2) and 75(2) [Also in Group XL(a)] Lighting devices such as electric lamp bulbs or discharge tubes, light emitting fittings, and ultralviolet radiators, are made of soft glass which will withstand a temperature of more than 150 ‹C. during the operation of the device and are protected against albrupt variations in stress, due to contact with rain or moisture while hot, by coating the glass with a light-pervious layer of silicone lacquer of a thickness of more than 15u, preferably more than 20u, the coated surface being subsequently heat treated in a muffle furnace. A coating composition of silicone lacquer and a plasticizer such as a silicone resin or silicone grease may be used. The subsequent heat treatment in a muffle furnace is effected at a temperature of, for example, 225‹C.