baber/WOPTO huggingface dataset:
Patent GB-215947-A (GB)
Title: An improved mechanism for impelling pendulums for electric clocks
IPC: G04C3/02
Filed: 1923-04-30
Abstract: .215,947. Broughall, G. April 30, 1923. Electric clocks; pendulums.-In electric clocks in which the pendulum is maintained by a weight giving an impulse on each oscillation, the pendulum vibrates without friction loss due to actuating the escapement &c. The arms A, B, Figs. 1 and 3, on the left of the pendulum receive the weight W on V-shaped supports on the upward movement and deposit it on the stationary supports 5 at a lower level on downward movement. The weight is raised off the supports S to the higher position of rest by a spring- actuated lever C having a stirrup-shaped end embracing the supports S and provided with V- shaped supports for the weight. The lever C is depressed by the lever K and electromagnet J when the arms A, B contact with the weight W. The circuit for this purpose comprises the battery X, Figs. 3, secondary clocks Y, the weight W, arms A, B, the insulated pendulum supports H, H<1>, and an electromagnet J. The movement of the lever K establishes, by means of the arm 0, an auxiliary circuit at Q, R, which is short-circuited across the electromagnet when the weight W is deposited on the insulated supports S by the pendulum. The armature is then withdrawn by the spring N, and the lever C raises the weight to the adjustable stop E. The lever C has a dash-pot control Z, and the supports S are adjustably carried by a bracket U and a rod T<3>, of such length and material as to compensate for temperature variations in the pendulum &c. The arrangement of circuits on the right may be the same as on the left, as shown. In a. modification shown diagrammatically in Fig. 6, the auxiliary circuit is closed by the depression of the lever C and arm 4 and includes an electromagnet 6, 7, 8 which holds the lever C till the poles thereof are short-circuited by the weight and supports S. A resistance 11 prevents short-circuiting of the battery. Arcing only takes place at Q, Rand 4, 5 where rubbing contacts may be maintained.
Patent GB-1459046-A (GB)
Title: Liquid crystal devices
IPC: C09K19/12
Filed: 1974-03-15
Abstract: 1459046 Liquid crystal compositions DEFENCE SECRETARY OF STATE FOR 25 March 1975 [15 March 1974] 11607/74 Addition to 1433130 Heading C4X [Also in Division G2] A liquid crystal material comprises a liquid crystal compound as defined in claim 1 of Specification 1,433,130, and a dye dissolved in said compound. The dye molecules are preferably at least twice as long as the liquid crystal compound. The dyes may be dichroic, e.g. #- carotene or pleochroic. The liquid crystal material may be employed in various conventional electro-optical devices.
Patent GB-583060-A (GB)
Title: Improvements in and relating to machines for preparing wall and ceiling papers for hanging
IPC: B44C7/02
Filed: 1944-06-19
Abstract: 583,060. Pasting and cutting wallpaper. THOMAS, A. June 19, 1944, No. 11608. [Classes 31 (i) and 140] In a machine for pasting wallpaper, of the type comprising a frame surmounted by a table and by a paste-box with a pasting roller therein; the distance between the support for the unpasted paper and the pasting roller may be varied to accommodate rolls of differing diameters. As shown in Fig. 1, the walls 1 of the paste-box have slots 2 to carry the roll 3 of an average-sized roll 4 of paper, and extension arms 6 may be bolted to the walls to carry a larger roll 5. The ends of the arm may carry a plurality of notches to accommodate the axle 3, and the arms may be hinged to the box or connected by pins sliding in a notched slot so that their length can be adjusted. If required, the machine may include cutters for removing the edges of the paper before pasting. These comprise cutters 16, Fig. 3, on a shaft 18 rotated by engagement, of rubber-tyred discs 19 with the paper, and provided with a knob 20 for manual operation. The cutters 16 co-operate with lower cutters (not shown) geared thereto, as described in Specification 509,467, and a rod 15 on pivoted brackets 17 smooths the paper before cutting. Specification 526,231 also is referred to.
Patent GB-689871-A (GB)
Title: Improvements in rotary pumps
IPC: F04C3/06
Filed: 1951-05-21
Abstract: 689,871. Rotary pump. SOC. NOUVELLE DES ETABLISSEMENTS BRANDT. May 21, 1951 [May 27, 1950; March 13, 1951], No. 11819/51. Class 110(ii) A pump comprising parts 6, 7, 8 coupled by two inclined shafts 4, 5, in a spherical casing is provided with elastic packing material to seal the two working chambers w<SP>1</SP>, w<SP>2</SP> from each other. During the operation of the pump, the middle member 8 rocks between the end spherical segments 6, 7, which are integral with shafts 4, 5, to form wedge-shaped chambers w<SP>1</SP>, w<SP>2</SP> alternately. The trunnions, Fig. 5. are formed in pairs 9, 9a; 10, 10a and are provided with packing pieces 16, which may be rubber, pressing upon a central ball 15 of metal. Fig. 6 shows a modification having a central ball 16<SP>1</SP> of rubber formed integrally with packing pieces 16 in the trunnions which deform during each revolution of the shafts 4, 5. In Fig. 7 the core is constituted by the member 8 itself, of elastic material, the members 6, 7 having their centre parts formed integrally with the member 8. A metal shell 17 may surround the member 8. The three members 6, 7, 8 may be cut from a single spherical rubber block from which parts are cut to form the working chambers. Metal stiffeners may be inserted in the material. Canvas may also be used for reinforcing means. Fig. 10 shows a. number of pumping units A, B, C, D with end shafts 4, 5; one or both shafts may be driven by motors. The units may operate in series or in parallel.
Patent GB-945560-A (GB)
Title: Foetal heartbeat detector
Inventor: FARRER WALTER
IPC: A61B7/04
Filed: 1961-03-30
Abstract: 945,560. Foetal heart-beat detectors. BRUCE PEEBLES & CO. Ltd. March 26, 1962 [March 30, 1961], No. 11860/61. Headings A5K and A5R. [Also in Division H4] A foetal heart-beat detector includes a unit for mounting against the mother's body and containing a vibratory member having a natural vibration frequency of about 57 cycles per second. A piezo-electric crystal bar 15 having a natural vibration frequency of 57 cycles per second, is supported at one end in oil in a cylinder 14. Opposed faces of the crystal are metallized and connected by conductors 18 in a short lead 21 which is stiffened by a spring to a pre-amplifier 22. The cylinder is mounted in a plastic block 11 which may be strapped to the mother's body. The pre-amplifier is connected to a main amplifier 25 which includes a frequency doubler. The output of the amplifier energizes a light 26, head-phones 27 or a loud-speaker 28 when the crystal is exposed to foetal heart vibrations. The device does not respond to the maternal heart-beat.
Patent GB-559594-A (GB)
Title: Improvements in and relating to the spraying of materials
IPC: B05B12/18
Filed: 1942-08-25
Abstract: 559,594. Spray-producers. SCHORI METALLIZING PROCESS, Ltd. (Dowson and Dobson, Ltd.). Aug. 25, 1942, No. 11943. [Class 69 (iii)] A spraying process consists in spraying the material in a finely divided or atomized condition through an annular heating flame consisting of acetylene and, as a comburent atmospheric air as distinct from oxygen as hithertofore, the annular heating flame being surrounded by an outer annular jet of compressed air to shape and stabilize the flame. The process may be carried-out in apparatus as described in Specification 432,831.
Patent GB-111121-A (GB)
Title: An Improved Calculating Device.
Inventor: KIDD GEORGE WATSON
IPC: G06G1/14
Filed: 1916-08-24
Abstract: 111,121. Kidd, G. W. Aug. 24, 1916. Computing-scales.-Apparatus of the propor tional-calculator type, having a bar and scale capable of relative movement, are adapted for use on board ship to ascertain one of the three following quantities when two of them are known, viz., (1) percentage or amount of fuel remaining, (2) speed, (3) distance travelled or radius of action. The device comprises a frame b recessed at d to carry a sliding table a which may be reciprocated by a screw g. Mounted on the table is a scale card n having at each end an evenly divided scale p marked in percentages of fuel capacity and at the top edge a scale q representing speed in knots divided by lines radiating from a point x at the zero of the fuel-capacity scale. The graduations on the scale q are obtained from the speed consumption curve of the ship in conjunction with an evenly divided scale k secured to the frame and showing the radius of action. The table is adjusted to bring the 100 per cent. line level with the scale k, and radiating lines r are marked on the scale q opposite the readings on the scale k showing the radius of action at the speed corresponding to the graduations on the scale q. Pivoted at the point x is a straight edge or, alternatively, an elastic or other cord v is secured thereto and passes over a pulley carried by a block s sliding on a bar and provided with a clamping-screw. In the case of an inelastic thread, the thread is passed round a pulley on the block s and is secured to a spring barrel carried by an adjustable block z mounted on an arm sliding on a rod t secured to the block s. A transparent sliding scale k<1>, Fig. 5, is mounted on the scale k to facilitate addition and subtraction. In operation, the table is adjusted to bring the figure representing the percentage coal capacity against the scale k, the cord is adjusted to the speed reading on the scale q, and the radius of action can then be determined from the intersection of the cord v with the scale k.
Patent GB-786945-A (GB)
Title: Improvements in the production of delta-epsilon-unsaturated carboxylic acids, their derivatives and the corresponding delta-valerolactones
IPC: C07C51/353
Filed: 1956-04-20
Abstract: d ,e -Unsaturated carboxylic acids or their derivatives and the corresponding d -valerolactones are produced by reacting an olefine having a CH3- or -CH2- group adjacent to the double linkage with a compound of the general formula X-CH2-CH2-Y in which X represents a halogen atom, a hydroxy, alkoxy, aryloxy, or acyloxy group, Y a carboxylic, ester, amide or nitrile group and X and Y together may represent a group -O-CO-, at a temperature above 150 DEG  C. in the presence of a polymerization stabilizer, such as hydroquinone, pyrogallol or aminophenols, in amounts of about 0.01 to 5 per cent of the reaction mixture.  The preferred temperature range is 200 DEG  to 350 DEG  C., and the reaction is preferably effected in the presence of a solvent or diluent, such as hydrocarbons, organic acids, esters, ketones, ethers, alcohols and/or water.  Suitable olefines are propylene and isobutylene.  Suitable compounds of the formula X-CH2CH2-Y are b -halogenpropionic acids, hydracrylic acid, b -alkoxy- and b -acyloxy-propionic acids and their esters and amides, b -propiolactone, and the nitriles of b -halogen, b -hydroxy-, b -alkoxy- or b -acyloxy-propionic acids. The products are useful as intermediates for softeners, plastics, textile assistants and pharmaceutical products.  In examples: (1) hydracrylic acid is heated with isobutylene at 320 DEG  C. in a silver-lined autoclave in the presence of propionic acid and pyrogallol giving on distillation a mixture of 2-methyl-hexene-(1)-oic acid-(6) and 4,4-dimethyl-d -valerolactone which is separable by alkaline extraction; (2) b -propionyloxy-propionic acid is heated with propylene at 310 DEG  C. in the presence of propionic acid and pyrogallol giving hexene-(1)-oic acid-(6) and 4-methyl-d -valerolactone; b -acetoxy-, b -ethoxy or b -propoxy-propionic acid or hydracrylic acid yield similar results; (3) b -methoxy propionic acid methyl ester and isobutylene yield 2-methyl-hexene-(1)-oic acid-(6) methyl ester and 4,4-dimethyl-d -valerolactone; b  - methoxy - propionitrile and isobutylene yield 2-methyl-5-cyanopentene-(1) which yields 2-methylhexene-(1)-oic acid-(6) by saponification; (4) b -chlorpropionic acid and propylene yield hexene-(1)-oic acid-(6) and 4-methyl-d -valerolactone; (5) b -propiolactone and propylene are heated in a silver-lined autoclave with addition of propionic acid and hydroquinone giving, on distillation, hexene-(1)-oic acid-(6) and 4-methyl-d -valerolactone and polymeric compounds.
Patent GB-1425934-A (GB)
Title: Alumina
IPC: C01F7/02
Filed: 1972-03-15
Abstract: 1425934 Alumina bodies IMPERIAL CHEMICAL INDUSTRIES Ltd 21 Feb 1973 [15 March 1972 21 Dec 1972] 12088/72 and 59108/72 Heading C1A A shaped body having at least one dimension less than 100 microns, comprising alumina or an alumina hydrate is made by forming a composition of an aluminium compound, an organic polymer in amount less than the aluminium compound, and a solvent for both the aluminium compound and the organic polymer, shaping the composition into the desired body and removing at least part of the solvent and finally subjecting the body to hydrothermal treatment to decompose at least partially the aluminium compound to alumina or an alumina hydrate. The alumina body, which may be a fibre formed by any known fibrizing process may also include in the composition an alkaline earth oxide, an acid oxide or a catalyst material which is selected from Pt, Sb, Cu, Al, Pd, Ag, Ru, Bi, Zn, Rh, Ni, Co, Cr, Ti, Fe, V or Mu in elemental or compound form. The fibre formed may be treated with a basic substance (ammonia or an amine) before or during the hydrothermal treatment.
Patent GB-243240-A (GB)
Title: Improvements in and relating to direction indicators for vehicles
IPC: B60Q1/34
Filed: 1925-05-09
Abstract: 243,240. Pearson, T. May 9, 1925. Road-traffic signals on vehicles.-In a direction signalling apparatus for road vehicles of the type comprising a pointer adapted to be rotated in a vertical plane, the pointer is mounted on a semicircular plate having a groove in which moves a roller attached to the pointer. Fig. 1 shows the apparatus for use with covered vehicles. A plate J has pivoted at the centre, a pointer K which is operated through gear wheels H, G by a shaft B which extends through the roof of the vehicle. The pointer is held in a signalling position by the engagement of a projection F on a bar with a corresponding notch in a base plate A. The bar E is located in a slot in the shaft B and is attached to a spring controlled portion of a handle C. When the handle is grasped the projection F is disengaged from a notch and the pointer may be moved into a new signalling position. Fig. 3 shows a modification adapted for use on open vehicles. The roller E is attached to a control arm C which is operated by a handle B. The control arm comprises two parts held together by a spring G. The pointer is held in a signalling position by the co-operation of the roller E with the corresponding notches F<1>, F<2> or F<3> under the influence of the spring G. The pointer is hollow and contains electric lamps L which are illuminated at night.
Patent GB-103616-A (GB)
Title: Improvements in Foot Arch Supporting Appliances.
Inventor: WOOSNAM ARTHUR
IPC: A43B7/22
Filed: 1916-08-26
Abstract: 103,616. Woosnam, A., (Scholl Manufacturing Co.). Aug. 26, 1916. Foot-arch supports for the treatment of a broken transverse arch are made with a metallic plate 10 curved in front at 11 under the heads of the meta.. tarsal bones and tapering backwards to a point 13. The plate is slightly curved longitudinally, but transversely is arched to form a hump 16 under the middle metatarsal bones. Slots 17, 17<11>, preferably arranged as shown in Fig. 2, allow the height of the hump to be adjusted. The plate 10 is riveted to a leather cover-piece 15, and the whole is retained in position by a flat-headed pin 22 which passes through the piece 15 and through a hole in the plate 10.
Patent GB-906360-A (GB)
Title: Improvements in or relating to pump diaphragms
IPC: F04B43/00
Filed: 1961-04-05
Abstract: 906,360. Diaphragm pumps. FARBWERKE HOECHST A.G. April 5, 1961 [April 14, 1960], No. 12199/61. Class 102 (1). [Also in Group XXVI]. A pump diaphragm for use with corrosive liquids comprises at least one ply 1 of material woven from filaments and/or fibre yarns of a linear aromatic polyester and faced with natural or synthetic rubber or a plastics material 2. Two or more plies may be held together by a suitable adhesive.
Patent GB-1502484-A (GB)
Title: Pushbutton switches
IPC: G06F3/02
Filed: 1975-03-24
Abstract: 1502484 Push button switches WESTERN ELECTRIC CO Inc 24 March 1975 [25 March 1974] 12249/75 Heading G1N [Also in Division H1] A magnetically operated push button switch includes a pair of conductive plates one of which is of magnetic material and is moved towards the other by operation of the switch and a circuit for monitoring the impedance between the two plates. A printed circuit board 110 fixedly mounted in a housing (not shown) has a conductive plate 111 etched on its lower face together with a guard conductor 112 which substantially surrounds plate 11. Spaced from the board 110 and plate 111 by spacers 117, 118 is a magnetic strip 113 which has a conducting pattern 114 formed by punching in its central region and connected thereto by cantilever springs 115, 116. When spring 132 biased push button 130 carrying a permanent magnet 133 on the end of tubular support 131 is depressed the pattern 114 is attracted towards the fixed plate 111 against the force of the cantilever springs 115, 116 and with a snap action covers either into direct contact with the plate 111 or dielectric layer 120 if present between 111 and 114. On release of the push button 130 the pattern 114 returns to its quiescent condition. Circuit. Clockpulses CL are fed from generator 150 to the guard conductor 112 from which they are capacitively coupled to plate 111 and thence to one input of coincidence gate 154 via amplifier 156, S, Fig. 2. Inverted clock signals CL are fed to the second input of the gate 154 and to the conductive pattern 114. In the quiescent condition of the switch the output from the gate is as shown at A i.e. only spikes which do not charge an integrator 160 sufficiently to operate threshold detector 163. However when the push button is depressed the inverted clock signals CL are coupled either capacitively or conductively to plate 111 and swamp the capacitively coupled signals CL. The gate 154 now has in phase signals applied thereto and its output pulses charge the integrator and trigger the threshold detector.
Patent GB-350146-A (GB)
Title: Improvements in or relating to carbonating apparatus
IPC: B01F3/04
Filed: 1930-04-17
Abstract: 350,146. Aerating liquids. BRATBY & HINCHLIFFE, Ltd. and CLARKE, L., Sandford Street, Ancoats, Manchester. April 17, 1930, No. 12266. [Class 14 (i).] In carbonating apparatus of the type in which gas and liquid are led to a mixing p u m p through separate pipes, a measuring device, such as a variable-stroke pump as distinct from a regulating valve, is provided to feed the liquid to the mixing pump. The water pump 1 and the gas and water pump 2 are driven by variable-throw cranks 4, 41 on a shaft 3. Gas at constant pressure is supplied to the pump 2 by a pipe 26 so that the proportions of gas and water in the mixture passed to the tank 24 may be regulated by adjusting the throw of the crank 4.
Patent GB-240091-A (GB)
Title: Improvements in or relating to dispensing nozzles for aerated liquid containers
IPC: B65D47/20
Filed: 1925-05-11
Abstract: 240,091. Pickering, R. P. May 11, 1925. Stoppers with valves.-Containers for aerated liquids are provided with a dispensing nozzle comprising a flexible tube 7 disposed within a metal or other rigid tube 1 which may be secured in a cork 3, and a rocking lever 11 pivoted on the metal tube 1 and urged by a spring 17 to force a plunger 14 to compress the flexible tube 7.
Patent GB-623660-A (GB)
Title: Improved light-weight aggregate and method of producing the same
IPC: C04B20/10
Filed: 1947-05-06
Abstract: A porous aggregate for use in the preparation of light-weight concrete or the like is provided with a coating of a highly-soluble finely-powdered alkali metal salt of a naphtha-insoluble resin prepared from pine wood.  Approximately 0.05 lb of the salt is applied per cubic foot of the aggregate, the application being at a temperature such that the salt is not melted.  The aggregate may be formed from vermiculite heated to 1800-2200 DEG F to cause expansion and then cooled to approximately 200 DEG  F before application of the salt.
Patent GB-381164-A (GB)
Title: Improvements relating to gramophone record discs
IPC: G11B3/70
Filed: 1931-04-25
Abstract: 381,164. Gramophone records. LINK, R. P., 10, Millers Avenue, Hackney, London. April 25, 1931, No. 12290. [Class 40 (ii).] To facilitate the removal of a gramophone record disc from a pile, the central part of the disc is provided with a raised portion by attaching a smaller disc thereto by means of a metal bush. One such smaller disc may be attached on each side of a record disc. As shown, the record disc a has two smaller discs b attached to it by an eyelet or metal bush c. The Provisional Specification states also that the smaller disc or discs may be attached to the record disc by an adhesive or cement, and describes various modifications which include, (1) forming the central raised portion by embossing the record disc, the projecting part on one side being larger than the recessed portion on the other, and (2) moulding the record disc with a central portion of greater thickness than the remainder.
Patent GB-276050-A (GB)
Title: Improvements in direction indicators for vehicles
IPC: B60Q1/36
Filed: 1926-05-13
Abstract: 276,050. Twomey, W. R., and Lucas, G. F. May 13, 1926. Road-traffic signals on vehicles.-A pair of lamps, one at the front and the other at the rear of the vehicle are arranged to exhibit two distinctive coloured lights separately, the lamps or their casings being turnable through 180‹ and automatic switching means for the lamps being provided. As shown in Fig. 6, a casing 2 carrying coloured glasses 25, 26 is arranged to rotate about a fixed lamp 27, a screen cutting off the light from the glass not required. Contacts 23 are closed by cams 24 to light the lamp, and the cams maintain the casing in its set positions. Rotation is effected by a chain 15 connected to a Bowden cable 6, the cables 6, 6<a> of the two lamps being connected to a single operating lever 1. A return spring 16 is provided, and movement is limited by stops 19, 20. According to the Provisional Specification, the lamps may be moved from the steering-gear, and a white light be projected in the direction to be taken.
Patent GB-578799-A (GB)
Title: Improvements in devices for recocking and firing automatic guns
IPC: F41A7/04
Filed: 1941-09-24
Abstract: 578,799. Automatic guns. OLAER PATENT CO. Sept. 24, 1941, No. 12399. Convention date, March 4, 1940. [Class 92 (ii)] Fluid pressure devices for recocking and firing automatic guns are brought into operation selectively by a single electromagnet the movable part of which operates on one or the other of two control valves, according to the direction of current through the solenoid coil, which is controlled by a reversing switch 24.. As shown, fluid under pressure enters the valve chamber by a pipe 2 and passes to the recocking device through a valve 3 and pipe 21, or to the firing device through a valve 4 and pipe 22. The armature 10 is a permanent magnet and is kept in neutral position by springs 17, 18, clearances being provided between the ends of the armature 'and the valve-operating levers 13, 14 to ensure quick opening of the valves.