baber/WOPTO huggingface dataset:
Patent GB-710479-A (GB)
Title: Process for the production of bis(hydroxyphenyl) compounds and the resulting bis(hydroxyphenyl) compounds
Filed: 1952-07-21
Abstract: Bis - (hydroxyphenyl) compounds having the general formula <FORM:0710479/IV (b)/1> where R1 and R1 are hydrogen or organic, preferably hydrocarbon radicals and R3 is an organic, preferably hydrocarbon radical, and wherein the phenolic radicals may be further substituted by hydrocarbon radicals, are prepared by reacting in the presence of an acid catalyst under substantially anhydrous conditions a phenolic compound and an unsaturated halide having the formula <FORM:0710479/IV (b)/2> where X is a halogen.  The radicals R1 and R2 may be joined together or either may be joined to R3 to form a cyclic nucleus.  Mixed gem-(hydroxylphenyl) alkanes are obtained by using mixed halo-olefines.  Examples of halide reactants are 2-chloro- and 2-bromo-propene, and -butene-1 and -2, 2-chloro-3-methyl butene-1, 1-phenyl-2-chloropropene-2, 2-chloro-octene-1, 1-chlorocyclohexene, a -chlorovinylcyclohexane, 2 - chloro - 3 - cyclohexylpropene - 1, 2 - chloro - 4-phenylbutene-1, and many others are given.  Suitable phenolic compounds are phenol, the cresols, xylenols, thymol, carvacrol, cumenol, 2-methyl-6-ethyl phenol and other alkyl-substituted phenols, o- and p-phenyl phenols, naphthols and phenanthrol. Mixtures of phenols may also be used.  Suitable catalysts are hydrogen chloride, phosphoric, sulphuric, hydrobromic, hydrofluoric and p-toluene sulphonic acids and boron trifluoride and its complexes.  Secondary catalysts, such as hydrogen sulphide, thiophenols, alkyl mercaptans and mercapto-substituted mono-carboxylic acids, may also be used.  Solvents may be used and may comprise excess phenolic compound or benzene, toluene, xylene, chlorobenzene, carbon tetrachloride or paraffinic hydrocarbons. The process may be batch, semi-continuous or continuous and temperatures of 0 DEG  to 120 DEG  C. are suitable.  The reaction products generally comprise isomeric forms of the bis-(hydroxy-phenyl) compounds and may also contain as by-products mono-hydroxyphenyl compounds and saturated dihalogen compounds, e.g. (example 3), 2,2-dichloropropane.
Patent GB-294875-A (GB)
Title: Improvements in sound reproducers
IPC: H04R9/06
Filed: 1928-06-25
Abstract: 294,875. Brandes, Ltd., (Assignees of Sollie, S. A.). July 30, 1927, [Convention date]. Diaphragms; loud-speakers; magnetic instruments. - In a sound reproducer employing a conical diaphragm which is supported in a plane intermediate the apex and the periphery, the diaphragm is driven by a moving coil and the supporting means are adapted to facilitate assembly with the magnet system. As shown the diaphragm 1 is supported from a ring support 3 in a plane intermediate the apex and the periphery by a flexible membrane 2 which extends over the beaded edge of the ring 3 and is secured by a ring 4. The support 3 is mounted on a plate 5 of magnetic material apertured centrally to receive the coil bobbin 9 which is supported from the diaphragm by a cone-shaped plate 11. Arms 15 mounted on the plate 5 support channel-shaped rings 19, 21 between which is clamped an annulus 24 of flexible material connected to the edge of the diaphragm and adapted to damp the movements of the diaphragm. The damping annulus 24 may be divided into a number of segments. A felt pad 23 mounted in the ring 21 may be pressed against a baffle board or panel. The plate member 5 is clamped by bolts 29, Fig. 5, to a pot magnet 26 having an energizing winding 27 and a central pole 30 adapted to enter the bobbin 9 and having a recess 31 adapted to accommodate the diaphragm. Specification 276,900 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) also states that the space between the membrane 2 and the plate 5 forms a damping chamber for the diaphragm. This subjectmatter does not appear in the Specification as accepted.
Patent GB-889828-A (GB)
Title: Process for dehydrating the catalyst in deuterium exchange installations
IPC: B01J21/18
Filed: 1958-06-09
Abstract: <PICT:0889828/III/1> The catalyst, separated from water in a deuterium-exchange process between hydrogen and water containing a catalyst in suspension, is dehydrated by exposure to a stream of hydrogen having a lower D- content than the water adhering to the catalyst, and the hydrogen is passed into an exchange process with water.  H2 generated from water in 21 is passed through exchange column 22 in countercurrent to water containing suspended catalyst. The water is withdrawn at 29 and passed to separator 23, whence the water is returned to the generator 21.  The separated catalyst passed to dehydrator 24, whence it is returned through 212 to the water feed at 213.  Part of the water containing suspended catalyst is withdrawn at 214 and passed through cold (5 DEG -100 DEG C.) column 27 and hot (150 DEG -250 DEG C.) column 25, of a dual temperature isotope exchange unit, and returned at 218 to the main stream.  The hydrogen used to dehydrate the catalyst in 24 passes in closed circuit through columns 25, 27, in countercurrent to the water, and a part circulation is withdrawn at 222 to flow through further cold and hot columns 28, 26 and returned at 225.  A closed circuit of water containing suspended catalyst flows countercurrent through 28, 26 and product is withdrawn at 228 or passed to additional stages.  In a simpler arrangement (Fig. 1, not shown) a simple exchange occurs in an exchange column associated with H2 generator, catalyst separator, and dehydrator, wherein a part of the H2 from the exchange column is used in the dehydrator and is added to the gas passing to the exchange column.
Patent GB-200838-A (GB)
Title: Improvements in electrodes for electrolytic cells
IPC: C25B11/02
Filed: 1923-07-16
Abstract: 200,838. Electro Chemical Co., (Assignees of Gerstle, J.). July 15, 1922, [Convention, date]. Electrodes; supporting; hypochlorites, obtaining. - In a structure comprising insulated electrodes of both polarities, one electrode, say the cathode in a hypochlorite cell, consists of silver wire strung on a base. As shown, the cathode comprises a non- conducting plate 3 over the top edges of which are bolted together two conducting bars 8. Wire 10 extends from one bar 8 to the other around the notched bottom edge of the non-conducting plate, the ends and intermediate bends of the wire being soldered or otherwise attached to the bars 8. Anodes 2 are secured on either side of the cathode by bolts and insulating nuts. The anodes may be of graphite or may also be wound with wire. High current densities may be used.
Patent GB-716748-A (GB)
Title: Improvements relating to fire-extinguisher discharge valves
IPC: F16K1/30
Filed: 1952-07-21
Abstract: 716,748. Fluid-pressure servomotor-control systems ; manually-actuated valves. C-O-TWO FIRE, EQUIPMENT CO. July 21, 1952 [July 21, 1951], No. 18394/52. Class 135 A fire-extinguisher discharge valve comprises a body 1 secured to a container 8 and housing a valve piston 30 slidable in a chamber 16. The valve piston carrying a sealing member 31 normally held upon a seat 24 by a spring 62 and the fluid pressure in the container conveyed through a restricted passage 47, is formed with a subsidiary valve member 64 engageable with a vent 56 normally closed by a plug 55. The plug is held in the vent by a bulb 52 formed of quartz or other material capable of withstanding a high temperature and filled with liquid having a low freezing point. On the temperature reaching a predetermined value the liquid expands to rupture the bulb, permitting the plug to be urged out of the vent by a spring 60 to relieve pressure in the chamber 16. The sealing member 31 now moves away from its seat 24 and the valve member 64 closes the vent 56 so that all the pressure fluid in the container passes through an outlet 25 connected to a hose. The valve may be manually-actuated by pressing on a lever 3 whence a rod 35 moves the valve piston to unseat the sealing member 31.
Patent GB-576409-A (GB)
Title: Fog nozzle
IPC: A62C31/03
Filed: 1944-09-27
Abstract: 576,409. Spray-producers. HURST, G. F. Sept. 27, 1944, No. 18471. [Class 69 (iit)] In a nozzle for discharging impinging streams of liquid to form a fog for fire extinguishing, the point of impingement 35 or 37 &c. of the streams issuing from the bores can be varied by simultaneous rotation of the cylinders 23, 24 so that the intersection takes place along the centre line of the main nozzle. Equal rotation of the cylinders 23, 24 is obtained by a handle 31, the cylinders being coupled together by gears. The handle 31 is provided with a spring-pressed pin 35 to fit into one or other of the depressions between stop pins 34 to hold the setting of the bores 27. Packing 32 is provided. The nozzle body 20 is enlarged at 21 and its spigot end 7 can be inserted in alternative passages 2 or 4 and secured by one or other of the cut-away pins 12 fitting into the recess 8 or 9 when the pins are rotated by a handle 17. The pins 11 and 12 are coupled by other gears. Gaskets are provided to make a tight joint. The alternative bores 2 and 4 are formed in a main body 1 provided with valves 3, 5 and supplied from the common inlet 6.
Patent GB-657822-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/42
Filed: 1948-07-10
Abstract: 657,822. Windscreen-cleaners. O'SHEI, W. E. July 10, 1948, No. 18604. [Class 138(i)] Relates to a windscreen wiper of the type in which the wiper blade is mounted so as to be angularly movable with respect to the wiper arm and resilient means are provided for normally holding the blade at any desired angle to the arm in such a manner that the blade can be swung into a position deviating therefrom against the action of the resilient means e.g. to allow the blade to be parked close against the edge of the windscreen, wherein the pivotal connection between the arm and blade is effected by two co-operating members which are adapted to be normally engaged together by the urge of a spring at at least two points which are opened along a line which lies substantially parallel to the surface of the windscreen so that the blade may be swung about one or the other of the two spaced points. In one embodiment, by way of example, a connector 2 having a rectangular slot 7 and a longitudinal bore 8, is pivotally connected to a wiper blade 1 by a pin 6. Within the bore 8 is a plunger 9 urged across the slot 7 by a spring 10, the compression of which is adjustable by a screw plug 11. The plunger urges the bent portion 12 of a wiper arm 3 into normal engagement with a wall of the slot at at least two spaced points 14, 15, Fig. 4a. The arm is interlocked with the connector by means of a projection 21 on the plunger engaging in an aperture 20 in the portion 12. When the blade meets an obstruction such as the windscreen frame or a stop carried thereby, the connector and the blade swings about one of the two spaced points e.g. 14, Fig. 4b, against the action of the spring urged plunger. As soon as the wiper blade is moved away from the obstruction the plunger causes the blade to assume alignment with the arm. The blade is rockably mounted within the connector on the pin 6 so that it will assume a slightly inclined trailing position as the blade is moved back and forth over the windscreen. By less acutely bending the portion 12 the right hand portion of the connector may be made to bear on the metal backing of the blade and thus cause greater pressure to be exerted between the blade and windscreen at the right hand end of the blade. In a modification the connector and its spring may be separate from both the arm and blade and be connected to both members. Thus the connector may be attached to an arm and adapted to receive a flattened member projecting from the back of the blade. Alternatively a flattened member carried by the back of the blade and a flattened member on the arm may both be received and interlocked in the connector aperture.
Patent GB-188151-A (GB)
Abstract: 188,151. Bowes, W. H. Sept. 22, 1921. Postmarking and stamp-cancelling machines - Postmarking &c. machines capable of dealing with letters, packages, &c. of different thicknesses, are provided with a movable stop normally raised by a spring to stop the letter &c. depressed by a cam on the printing-roller to allow the foremost letter of the pile to be fed past the separator by a belt which passes over a feed roller formed with projecting portions to cause parts of the belt to project beyond a groove in which the belt is normally concealed. As shown, the letters &c. are stacked on edge on a feed table 1 fitted with a guide 1<a> and with a rubber-covered separating- member 11 held in place on a housing 10 by a screw 11<b>. The feed and impression roll 3 is mounted on a shaft 1<e> operated by a handle 3<m>, and the printing roller 5 is mounted on a shaft 5<a> carried by a spring-pressed arm 6, the shaft 5a being connected by a universal joint to a gear wheel on the shaft 1<e>. The feed belt 4 passes around a groove 3b in the feed roller 3 which normally masks its feeding action. Projections 3<d> are arranged at the places where feeding is desired, and when these projections pass by the separator 11, the foremost sheet is engaged and passed between the feed and printing rollers, a stop 9<c>, which normally engages a groove 3<c> in roller 3, being depressed to permit the advance of the latter. This stop can slide in a pivoted arm 9 and is pressed outwards by a spring 9<e>, but is depressed with the bar 9 when this is pulled to the left by a spring 9<g> when permitted by a cam 5<g> on the shaft 5<a>. The belt 4 passes over an idle roller 12, and over a stacking-device 4<c> which it drives, and is tensioned by an adjustable roller 14. The projections 3d are so placed that different portions of the belt are engaged in turn by them, so that uniform wear occurs. The printing die 5<e> and cancelling devices 5d are inked by a felt roller 15 mounted in an arm 15<a> held in the desired position by a screw 15b. The roller 3 is formed with grooves 3<a>, Fig. 4, opposite to the devices 5<d> so that set-off cannot occur. To continue the feed of the letters after the printing has occurred, the roller 5 is formed with rubber feeding-strips attached to a surface 5e. A guide with turned-up ends which act as a stripper prevents the letters from adhering to the cylinder 3, and guides them during delivery. The inward motion of the arm 6 is limited by an adjustable stop 16.
Patent GB-876787-A (GB)
Title: A circuit arrangement for supplying a direct-current load through rectifiers and for protecting the rectifiers against over-currents
IPC: H02H3/087
Filed: 1958-06-02
Abstract: 876,787. Protective cut-out arrangements; arcing-preventing in switches. SIEMENSSCHUCKERTWERKE A.G. June 12, 1958 [June 15, 1957], No. 18827/58. Class 38 (5). In an arrangement in which a D.C. load 6 is supplied from an A.C. supply 1 through rectifiers connected in two paths such that the load current flows through one path during one half cycle and through the other path during the other half cycle, each path includes a circuitbreaking device 8, 9 and control means are provided which under overload conditions effect the opening of the devices 8, 9 in turn during the half cycles in which they do not carry current. The arrangement may be of the bi-phase type or of the bridge-connected type as shown in the Figure in which the limbs of the bridge are provided by rectifiers 2 . . . 5. The devices 8, 9 may be controlled by saturable chokes (not shown) which are so arranged that when the current through the rectifier 2 exceeds a predetermined value, the device 9 in the other path is opened and when the current through the rectifier 3 exceeds this value the device 8 is opened.
Patent GB-346225-A (GB)
Title: Improvements in covers for the openings of cooking stove hotplates
IPC: F24C15/10
Filed: 1930-06-20
Abstract: 346,225. Cooking-stoves. HERZMANN, O., 15, Steinhausenstrasse, Essen, Germany. June 20, 1930, No. 18854. Convention date, July 23, 1929. [Class 126.] Lids and covers; baffles.-A cover for the utensil openings of hot plates is provided with a spiral rib c forming a spiral flue open on the underside to the fire. In the form shown the outer end of the flue is provided with a damper h and with hollow enlargements d on the rib c. Some of the gases pass up the passages e in these enlargements, and thence by tangential inlets f into the top of the flue.
Patent GB-567196-A (GB)
Title: Improvements in reel mountings for wrapping machines and the like
IPC: B65H16/06
Filed: 1943-11-13
Abstract: 567,196. Feeding webs. FORGROVE MACHINERY CO., Ltd., HARRIS, R. A., and PARKER, M. Nov. 13, 1943, No. 18916. [Class. 100 (i)] A reel mounting for a wrapping or other machine comprises a pair of freely rotatable discs 15, 16 between which the reel is gripped, one of the discs 16 being movable towards and away from the other by a manually-operable member 55 secured to a cylinder 41 having a cam groove 42 engaging a fixed pin 43 so that as the cylinder is rotated it is moved axially. The disc 16 is carried by ball-and-roller bearings 48, 47 in a bush 46 within the cylinder 41 and is urged towards the disc 15 by a spring 51, the relative axial movement of the bush 46 and cylinder 41 being limited by a collar 59 on an axial pin 56 engaging the bottom of a recess 60 in the member 55. By turning the member 55 anti-clockwise, the cylinder 41 is moved outwards and when the bottom of the recess 60 contacts the collar 59, the disc 16 is positively withdrawn to allow insertion or removal of the reel. Upon clockwise movement of the member 55, the disc 16 is moved inwardly to engage the reel, after which further movement compresses the spring 51. The end of the cam groove 42 is circumferential to lock the parts in the reel-engaging position. A spring-pressed reel centring cone 31 is provided in the disc 15. The disc mountings are carried by supporting arms 35, 38 connected by rods 37 and adjustable for side register of the reel by a screw 26 threaded through the fixed frame 12 and carrying the mounting of the disc 15. The web from the reel passes over a roller carried by pivoted spring-controlled arms, to which one end of a brake band passing round a brake drum 21 on the disc 15 is secured.
Patent GB-482996-A (GB)
Title: Improvements in or relating to devices for advertising and like purposes
IPC: G09F11/30
Filed: 1936-07-08
Abstract: 482,996. Moving signs. RICHES, R. T., and RICHES, G. H. July 8, 1936, Nos. 18957 /36 and 1485 /37. [Class 3 (i)] In advertising &c. signs in which independent display plates are carried by oscillatory arms and are brought into viewing position in succession and subsequently removed from sight, the plates pass through an opening or openings in their movement to and from display position. The actuating means for taking the plates through the openings may comprise a belt 9, Fig. 2, driven by an electric motor 11 and riding round a series of rollers 10. The belt 9 has an elongated slot 12 into which fall rollers 8 on rear extensions 7 of the arms 4 carrying the plates 6. Fig. 4 shows a modification in which two sets of plates 6 forming a double-sided sign have the extensions 7 actuated by rotating cylindrical cams 13 which raise the plates 6 out of sight simultaneously and allow them to fall in succession by gravity. Several rows of plates in a single sided sign may be operated by a single cam or by a cam for each row, in the latter case the cams being geared together. Alternatively a column of plates may be actuated by disc cams carried by a single vertical spindle. The plates 6 may be adjustably or detachably mounted on the arms 4, which latter in their fall may be cushioned by rubber &c. pads.
Patent GB-874937-A (GB)
Title: Improvements in folding tables for sewing machines and the like
IPC: A47B29/00
Filed: 1960-05-30
Abstract: 874,937. Collapsible tables. KOHN, S. May 30, 1960 [July 28, 1959], No. 18996/60. Class 52(3). A collapsible table is formed by two side units and a top; one side unit has two legs 1, 1 interconnected by a panel 2 and the other side unit has two legs 3, 3 interconnected by a bar 4 and with panel 5 hinged about a vertical axis at 6. The top has two parts 7, 8 of the same shape hinged at one end to fold on top of one another and two side panels 10 hinged at 11 which in the assembled position engage grooves 12 in the legs 1, 1; 3, 3. Thumbscrews 14 engaging captive nuts keep the table in the assembled position. The top members 7 may have an aperture 15 and flap 16 to take a sewing machine in a known manner. The cavity beneath the top may be closed by a rectangular bottom. The dimensions of the table top are such that when collapsed it may be packed as shown in Fig. 4.
Patent GB-1524018-A (GB)
Title: Thixotropic mixtures
IPC: C08L33/04
Filed: 1977-05-06
Abstract: 1524018 Thixotropic plastics dispersions HOECHST AG 6 May 1977 [7 May 1976] 19086/77 Heading C3 A thixotropic dispersion for use in paints comprises (a) one or more aqueous synthetic plastics dispersions containing a copolymer of two or more alpha, beta ethylenic compounds, which copolymerizate contains 0À35-7 wt. per cent (based on the total copolymerizate) of acetoacetate groups, (b) a protective colloid containing hydroxyl groups, (c) a heavy metal chelate, and optionally (d) one or more other coating composition adjuvants. Suitable copolymerizates are derived from vinyl acetoacetate, allyl acetoacetate or an ethylene- or propylene glycol diester in which one -OH group is esterified with acetoacetic acid and the other with acrylic, methacrylic or crotonic acid. The preferred protective colloid is hydroxyethyl cellulose, and other adjuvants are an emulsifier, a plasticizer, a preserving agent, an antifoam, a pH stabilizer, a rust preventer or a flow assistant. Suitable heavy metal chelates are alkanolamine titanates or zirconates, titanium lactonate or titanium acetoacetate and chelates of beta diketones and #-keto acid esters.
Patent GB-1401754-A (GB)
Title: Ball valve
IPC: F16K5/06
Filed: 1974-05-01
Abstract: 1401754 Valves FIP VORMATURA INIEZIONE POLIMERI SpA 1 May 1974 [11  June 1973] 19105/74 Heading F2V In a rotary ball valve a cylindrical valve body housing an apertured ball 4 and annular seals 6 is connected to tubular flanged connecting members 7, 8 by threaded bushes 11, 12. Each seal is substantially triangular in cross-section and is urged towards the ball by an 0-ring 14. A reduced diameter flanged portion 13 of each connecting member 7, 8 allows the latter to partially enter the body 1 to take up clearance on wear of the seals. The seals are replaced by unscrewing the bushes 11, 12 and moving the body laterally from between the members 7, 8.
Patent GB-1046933-A (GB)
Title: Bowling pin spotting machine
IPC: A63D5/08
Filed: 1963-05-14
Abstract: 1,046,933. Bowling alleys. AMERICAN MACHINE & FOUNDRY CO. May 14, 1963 [May 18, 1962], No. 19163/63. Heading A6D. The pinspotting equipment of a bowling alley comprises a pin storage assembly mounted above a vertically reciprocable pinsetter table, the storage assembly comprises a triangular array of compartments 22 adapted to accommodate pins lying horizontally, the compartments being open at the top and bottom and each being superposed above a respective cradle member 32 which is rotatable through 180 degrees about a horizontal axis to either hold a pin received from the corresponding compartment, or to deposit the pin in one of the pinsetter devices mounted on the pinsetter table. Guide rollers 61 assist in feeding pins from the compartments to the cradle members. The cradle members are mounted on shafts which are rotated by an electric motor, circuitry being provided to synchronize the operation of the motor with that of other components of the pinspotting equipment. Preferably, the storage assembly is used in conjunction with pinsetter devices 82 of the type described in Specification 1,046,934 and is fed with pins by a distributer of the type described in Specification 1,046,932.