baber/WOPTO huggingface dataset:
Patent GB-429586-A (GB)
Title: Improvements in and relating to safety control devices for metal-vapour or gas-filled electrical discharge vessels
IPC: H02H7/127
Filed: 1933-08-30
Abstract: 429,586. Rectifying alternating current. SIEMENS-SCHUCKERTWERKEAKT.- GES., Siemensstadt, Berlin. Aug. 30, 1933, No. 24068. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 1, 1934]. [Class 38 (ii)] Relates to an arrangement for obtaining back ignition and overload protection of a rectifier by the application of a negative bias to the grids. A condenser 14 is charged through a rectifier 10 from a cur. rent transformer 9 in the supply to the main rectifier 5. When the load current exceeds a predetermined amount the bias across the condenser 14 exceeds that of a battery 12 and a negative bias is applied to the grids 7. In a modification the battery 12 is replaced by a glow discharge tube. When the voltage across it exceeds a predetermined amount, conduction takes place and the grid becomes negative. In a further modification the battery 12 is omitted and the rectifier 10 is composed of glow discharge tubes which break down when the voltage applied to them from the current transformer 9 exceeds a predetermined amount. In a modification shown in Fig. 5 a battery 28 is connected in circuit and its voltage is sufficient to maintain the glow discharge tubes 24-27 conducting once they had been rendered conducting by an overload. With this arrangement a negative bias is maintained on the grids until the switch 29 is opened. In a modification, Fig. 6, a relay 30 energized from the current transformer 9 controls the connection of a battery 28 across a resistance in the grid circuit. This relay operates slowly and is provided with a maintaining circuit. On the occurrence of the first overload a negative bias is applied to the grids momentarily to remove the overload, this bias however is removed before the relay closes. When the next overload occurs the battery 28 is sufficient to maintain the glow discharge tubes 24-27 conductive thus maintaining a negative bias permanently on the grids. A number of relays may be provided so that several overloads may occur before the negative bias is permanently applied. In a further modification, Fig. 7, the bias on the grid 7 is controlled by means of grid controlled discharge devices 34, 35 supplied from the A.C. supply, the grids of which are controlled by current transformers 19, 20 in the supply to the main rectifier 5. In the event of overload the valves 34, 35 become conductive to apply a negative bias to the grid 7. In a further modification a positive bias proportional to the supply voltage opposes a negative bias. During normal operation the positive bias is greater so that the grids of the main rectifier are positive. A reduction of the supply voltage below a predetermined value causes the bias applied to the grids to become negative.
Patent GB-1117584-A (GB)
Title: Improvements in unloading and turning apparatus primarily for handling glass
IPC: B65G49/06
Filed: 1966-05-31
Abstract: 1,117,584. Cradles for handling sheet material. DERBY GLASS CO. Ltd. 30 May, 1967 [31 May, 1966], No. 24071/66. Heading B8H. A lifting cradle for manipulating sheets of glass comprises a main frame 10, which is suspended from a crane, and a rotatable sub-frame 14 with clamping arms 21, 22, 23 and 33 which support the sheets. A hand wheel 19 rotates the sub-frame through a worm and wheel 15, 16. The arms 21, 22 have telescopic portions 21a, 22a and the arms 23, 33 have adjustable cross-pieces 24, 33 respectively. The sheets of glass are clamped by their edges by the adjustable arms and turned into the desired position for stacking by the hand wheel 19.
Patent GB-778285-A (GB)
Title: Improvements in or relating to electrical terminals
Inventor: FIELD ARTHUR JAMES
IPC: H01R4/36
Filed: 1953-09-01
Abstract: 778,285. Binding-posts ; terminal boards. LUDTKE, H. T. Dec. 1, 1954 [Sept. 1, 1953; Dec. 30, 1953], Nos. 24167/53 and 36165/53. Class 38 (1) [Also in Group XXXVII] In a terminal block comprising a plastic moulding 10, each terminal comprises a screwthreaded bore 11 in the block, formed with a diametrical slot 12a, 12b, and engaged by a clamping screw 15. A metal strip 14 is attached to the bottom of the bore and in use a permanent wire 38 is laid on the strip and a piece of soft metal 39 laid over the wire. The screw 15 is then tightened to deform the metal 39 round the wire and cause it to fit tightly in the bore so that wire 38 is retained in the terminal when the screw is slackened to permit a temporary wire 40 to be inserted over the metal 39, the screw then being tightened again. The screw, Fig. 6, comprises an insulating part 16a and a metal part 16b having the screwdriver slot formed therein, the two parts being moulded together. Rotatably attached to the inner end of part 16a in a clamping plate 20. In a modified screw (Fig. 7, not shown), the head portion has flutes into which the material of the insulating part is moulded A hinged cover 24 carrying an identification plate 33 is provided on the terminal block. Fig. 8 shows a modified block wherein two rows of terminals are arranged back-to-back, opposite terminals each having a metal strip 52 extending from the bottom of the bore into a central hole 54 in the block where they may be connected together or isolated by a screw 55. Alternatively the strips may be connected by a cartridge fuse (Fig. 9, not shown). According to further modifications, the bores of the terminals may be lined with screw-threaded metal inserts and the parts 16b of the screws may be replaced by screwed metal rings fitting round extensions on the insulating parts. The screws may be constructed as described in Specification 778,286. According to the first Provisional Specification the clamping plate of the terminal screw is spun over a head on the insulating part or it may be secured by a rivet. The insulating part has the screw-driver slot formed in its outer end, which is reduced and surrounded by a plain metal ring. Specification 778,287 also is referred to.
Patent GB-1152251-A (GB)
Title: Siloxane-Containing Surface Treating Compositions
Inventor: GIBBON ROBERT MUIR
IPC: C08L83/04
Filed: 1966-05-31
Abstract: 1,152,251. Polysiloxane compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 17 May, 1967 [31 May, 1966], No. 24226/66. Heading C3T. A polysiloxane composition comprises 100 parts by weight of a diorganopolysiloxane having at least two hydroxyl groups attached to different silicon atoms per molecule and of viscosity not less than 3000 cs. at 25‹ C., 1 to 20 parts by weight of a mono-organohydrogenpolysiloxane of viscosity not greater than 1000 cs. at 25‹ C., 1 to 20 parts by weight of an aminoalkoxysilicon compound and 5 to 20 parts by weight of an organotin acylate in an organic solvent. The composition may be used to coat paper. In examples the diorganopolysiloxane is a linear hydroxyl-ended dimethyl-polysiloxane; the mono-organohydrogen-polysiloxanes are methylhydrogen-polysiloxanes; the aminoalkoxy silicon compounds are aminobutoxypolysiloxanes, an aminoethoxypolysiloxane, a N-methylamino-ethoxypolysiloxane, a polysilicate ester of 2-aminobutanol, tetra-(2- aminoethoxy)-silane, methyl tri-(2-aminoethoxy)-silane, a N-diethylaminoethoxypolysiloxane, a 2-(2-aminoethoxy)-ethoxypolysiloxane, and an aminopropoxypolysiloxane; the organotin acylates are dibutyltin diacetate, dibutyltin dipropionate, dibutyltin dioctoate, butyltin triacetate, dibutyltin diformate, dioctyltin diformate, diacetoxytetrabutyldistannoxane, diacetoxytetraoctyldistannoxane, diacetoxyhexabutyltristannoxane and dioctyltin diacetate; the solvent is toluene. The aminoalkoxypolysiloxanes are prepared by reacting aminoalcohols with organopolysiloxanes containing silicon-bonded hydrogen atoms. They also may be prepared by transesterification of alkoxypolysiloxanes with aminoalcohols, and by the controlled hydrolysis of organo-(aminoalkoxy)- silanes alone or with aminoalkylsilicates.
Patent GB-501550-A (GB)
Title: Improvements in or relating to navigation aiding directional radio receiving systems
IPC: G01S1/02
Filed: 1937-09-04
Abstract: 501,550. Directive wireless systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and VALLETTE, T. A. Sept. 4, 1937, No. 24228. [Class 40 (v)] [Also in Group XXXV] In a " homing " direction-finding receiver in which the input to and output from the receiver proper is synchronously switched by mechanical means, the receiver output is alternately fed to the two responsive members of a control or indicator device, the two responsive members being co-operatively associated to give a combined co-ordinated single scale indication or control action dependent upon their relative response. In the Figure the loop aerial 1 is inductively coupled, and the open aerial 6 is connected through the phase-reversal contacts 5a of the rotary switch 5, to the circuit 2 which is coupled to the receiver proper (not shown) through the windings 2a. The low-frequency output from the output valve V of the receiver is fed through a rectifier and the switch contacts 5c alternately to the control coils 8, 8a of the twin needle indicator 7. For " on course " positions the two indicator needles 10, 10a are equally deflected towards each other and intersect on the line marked " ahead " and for " off course " positions one of the two needles is more strongly deflected, the resultant intersection indicating the transmitter bearing. As the transmitter bearing increases from 90 to 180‹, the indicated bearing decreases from 90 to 0‹ but movement of the needles against the direction of turn of the vehicle indicates that the transmitter is behind. The bearing " sense " for " on course positions is given by the increasing deflection of the needles as the vehicle approaches the transmitter, but since the direction of intersection of the needles is independent of field strength any volume control necessary is not critical. An automatic pilot may be controlled by the coils 11, 11a connected in a similar manner to the coils 8, 8a either to the same contacts 5c or to separate contacts 5b of the switch 5. The coils operate the contacts 12, 12a to energize the solenoids 15, 15a which control the port and starboard movements of a directional gyroscope. For " off course " positions only the more stronglyenergized coil closes its contact to operate the corresponding gyroscope movement. The automatic pilot can also be controlled photoelectrically by using the double-needle movement of the indicator 7 to control the light paths from a light source to a pair of photoelectric cells which control the gyroscope movements.
Patent GB-793228-A (GB)
Title: Tropine benzhydryl ether derivatives
IPC: C07D451/08
Filed: 1956-08-08
Abstract: The invention comprises tropine benzhydryl ether N-oxide and tropine p-chlorobenzhydryl ether N-oxide and acid addition salts thereof, derived from pharmacologically acceptable acids such as hydrochloric, hydrobromic, hydriodic, sulphuric, phosphoric, nitric, acetic, benzoic, salicylic, glycollic, succinic, nicotinic, tartaric, maleic, malic and lactic acids.  The compounds are made by treating tropine benzhydryl ether or tropine p-chlorobenzhydryl ether with a peroxidizing agent such as hydrogen peroxide and, if desired, reacting with a pharmacologically acceptable acid to form an acid addition salt. The compounds are used as anticholinergic and antihistaminic agents.
Patent GB-1041870-A (GB)
Title: Improvements in or relating to organopolysiloxanes and their use as release agents
IPC: C08G77/00
Filed: 1965-06-09
Abstract: A polymer is claimed per se which consists essentially of: (a) units <FORM:1041870/C3/1> where R is a C8-C20 n-alkyl radical or a radica -CH2CH2Q, where Q is a branched chain C6-C18 alkyl radical and (b) units <FORM:1041870/C3/2> where R1 is a C1-C7 n-alkyl radical or a radical -CH2CH2Q1, where Q1 is a branched chain C3-C5 alkyl radical. The mol. per cent of (b) based on the number of moles of (a) present may be from 0 to 100%. A preferred polymer contains substantially no (b) units and R contains 10-18 carbon atoms.  It also contains an average of 20 to 40 (a) units per molecule.  The polymers may be used as release agents to prevent adhesion or as lubricating agents for surfaces (e.g. of rubber or synthetic resin).  The surfaces may be painted. Examples relate to the preparation of the polymers from methyl hydrogen polysiloxanes and a -olefins using chloroplatinic acid as catalyst.
Patent GB-956091-A (GB)
Title: Knock-down shelf construction
IPC: A47B57/42
Filed: 1962-06-26
Abstract: 956,091. Shelving structures; stands. M. A. OZTEKIN. June 26, 1962, No. 24521/62. Headings A4B and A4H. A knock-down adjustable shelving structure comprises a pair of laterally spaced posts 10 to which are detachably secured shelf units B spaced at their rear edges from the posts to allow the edges of a vertical back and panel 38 to be slid into the space. The shelves consist of steel panels 31 having depending channel shaped skirts 32, 33 and 34 at front and rear and further strengthening members 36 welded to its underside; the side edges of the panels are spot welded to the horizontal flanges 24 at brackets 23 whose vertical flanges 26 have lugs 27 and 28 to engage slots 11 in posts 10. Back panels 38 are held in place by elongated clips 39. Base unit A consists of frames 12 braced at 14 and joined by longitudinal members 13, the frames having lugs 16 and 17 to fit slots 11. Base panel 18 may be of steel, and a kick panel 19 locks into holes 12a. Levelling screws 22 are provided.
Patent GB-1345998-A (GB)
Title: Thienodiazepine compounds and pharmaceutical compositions containining them
IPC: C07D495/04
Filed: 1972-05-24
Abstract: 1345998 1,2 - Dihydro - 3H - thieno[2,3-e]- [1,4]diazepin-2-ones YOSHITOMI PHARMACEUTICAL INDUSTRIES Ltd 24 May 1972 [31 May 1971 (3)] 24531/72 Heading C2C Novel compounds (I) and their acid addition salts in which Hal is halogen, R 1 , R 2 , R 3  are each hydrogen or C 1-4  alkyl, R is H, OCOCH 3  or OH and n is 1 when R is H and O when R is OCOCH 3  or OH, are prepared from compound II by (a) reaction with an oxidizing agent, preferably hydrogen peroxide, to form compound I in which R is H (b) reaction of this latter compound with acetic acid or a functional derivative thereof to form compound I in which R is OCOCH 3  and (c) hydrolysis of the latter compound to form compound I in which R is OH. Compounds I in which R is OH can be converted to the corresponding alkali addition salts by treatment with an alkali MOH in which M is sodium or potassium to form a compound (III) Preferred compound is 1-methyl-3-hydroxy-5-0- chlorophenyl - 7 - ethyl - 1,2 - dihydro - 3 - H- thieno[2,3-e][1,4]diazepine-2-one. Compounds I-III are tranquillizers and form with a carrier of adjuvant a pharmaceutical composition which may be administered orally.
Patent GB-657543-A (GB)
Title: Card trays
IPC: B42F17/08
Filed: 1947-09-05
Abstract: 657,543. Drawers. BRUEN, S. E. Sept. 5, 1947, No. 24567. Convention date, Aug. 7, 1939. [Class 52 (i)] [Also in Group XV] The Specification as open to inspection under Sect. 91 comprises drawer constructions adapted to receive a straight rail section 81 or 101 similar to that described in Specification 454,169, [Group XV], comprising a head 82 or 102 and longitudinal flange 83 or 103. The drawer 80 or 100 is of the crosssection shown in Fig. 11 (Cancelled) having a raised floor 84 or 104 with a central slot 85 or 105 to receive the flange 83 or 103. The front of the drawer is bent over and obliquely down at 93, or 118 to act as a card rest and in Fig. 14 (Cancelled), the front 111 is hinged at 114 to allow inspection of contents, the handle 116 of the drawer being below the hinge 114 to act as a rest for the drawer front 111. In a modification, an ordinary rectangular drawer is provided with a false bottom with a central slot. This subject-matter does not appear in the Specification as accepted.
Patent GB-1141856-A (GB)
Title: 19-nor-4,5-seco-steroids
IPC: C07J1/00
Filed: 1967-05-26
Abstract: 1,141,856. 19 - Nor - 4,5 - seco - steroids. ROUSSEL-UCLAF. 26 May, 1967 [26 May, 1966; 30 Aug., 1966; 1 Sept., 1966], No. 24569/67. Headings C2C and C2U. Novel compounds of formula (wherein R<SP>1</SP> is C 1-4  alkyl and X and X<SP>1</SP> are dialkoxy or optionally substituted alkylenedioxy groups, and there is optionally a 9(11)- double bond) are prepared from novel compounds of formula (wherein R is hydrogen or the residue of an organic carboxylic acid) by oxidation (when R = H) preceded by saponification when R is acyl. Compounds of Formula III are prepared by ketalization of the corresponding 3-Z-5-oxo- 13# - R<SP>1</SP> - 17# - OR - 4,5 - seco - gonane or -gon- 9(10)-ene (wherein Z is oxo or the group " X " defined above). 19-Nor-steroids of formula (wherein R 4  is a hydrocarbon substituent) are obtained from a compound of Formula I by reaction thereof with R<SP>4</SP>Li or R<SP>4</SP>MgHal to obtain the corresponding 17α-R<SP>4</SP>-17#-OH compound which is optionally esterified at position 17 and/or, when R<SP>4</SP> is unsaturated, hydrogenated to increase the degree of saturation in R<SP>4</SP>. The resulting compound is then hydrolysed to the corresponding 3,5-dione optionally containing a 9(10)-double bond which in turn is cyclized to a compound of Formula IV either directly with a basic or acidic agent or via the 3-enamine of the desired product when a secondary amine agent (e.g. pyrrolidine) is used. 16α,17α - Dihydroxy - 19 - nor - progesterone is prepared by firstly reacting 3,3 ;5,5-bis-(ethylene. dioxy) - 4,5 - seco - estran - 17 - one with KCN to obtain 3,3;5,5 - bis - (ethylenedioxy) - 17xhydroxy - 17# - cyano - 4,5 - seco - estrane and the corresponding 1 7#-hydroxy- 1 7α-cyano compound both of which are reconvertible to the starting material by reaction with caustic potash. The 17α - hydroxy - 17# - cyano compound is converted, optionally via bis-[3,3;5,5- bis - (ethylenedioxy) - 17α - hydroxy - 17# - cyano- 4,5 - seco - estrane] - sulphite, into 3,3;5,5 - bis- (ethylenedioxy) - 17 - cyano - 4,5 - seco - estr - 16- ene which is then converted into the required product via the compounds: (i) 4,5-seco-19- nor - pregn - 16 - ene - 3,5,20 - trione, (ii) 3- pyrrolidinyl - 19 - nor - pregna - 3,5,16 - trien- 20 - one, and (iii) 19 - nor - -pregna - 4,16 - diene- 3,20-dione, sequentially. Said product may be reacted with acetone to yield 16x,17x-isopropylenedioxy - 19 - nor - pregn - 4 - ene - 3,20- dione. 3,3 - Ethylenedioxy - 17# - hydroxy - 4,5 - secoestran-5-one is obtained by hydrogenation of the corresponding 9-estrene. The 13#-homologue is obtained analogously.
Patent GB-1040116-A (GB)
Title: Machine for disposing of sisal boles and like growths
Inventor: HOWARD ARTHUR CLIFFORD
IPC: A01D45/00
Filed: 1964-06-15
Abstract: 1,040,116. Cutting crops. ROTARY HOES Ltd. July 12, 1965 [June 15, 1964], No. 24658/64. Heading A4C. [Also in Division A1] A machine for cutting sisal boles or like heavy plant residue and delivering the cut fragments to the ground comprises upper and lower endless conveyers 30, 23 which define therebetween a throat through which the boles are fed to rotary cutters 58 cooperating with a ledger blade 59, the upper conveyer 30 being spring biased 42 towards the lower conveyer 23 to firmly hold the boles in the throat and the lower conveyer 23 being downwardly inclined to its leading end at which the boles are picked up as the machine moves forwardly. The forward end of the lower conveyer 23 is supported by a crank arm 14 driven from a winch 17 to provide a height adjustment by pivoting the conveyer 23 about its front end, and is provided with outwardly flared skids between which the boles are guided to an adjustable ledger blade 21 co-operating with a circular knife to cut the boles at ground level. The knives 58, 22 and the conveyers 30, 23 are all driven from the power take off shaft 13 of a tractor A which carries the machine at one side.
Patent GB-624870-A (GB)
Title: Casing structure for internal combustion free piston engines
IPC: F02B71/00
Filed: 1946-08-19
Abstract: 624,870. Free-piston engines and gas generators. RAMSEY, R. P. Aug. 19, 1946, No. 24678. [Classes 7 (i) and 7 (ii)] A free-piston internal-combustion engine casing structure comprises a centre frame part forming an open ended piston receiving. power cylinder casing, having at each end an enlarged longitudinally extending cylindrical part forming an air compression cylinder casing, a removable head for each of the casings forming a cylinder for receiving a cushioning piston and liners in each of the air compression cylinder casings and the power cylinder casing to provide cylinders for receiving air compression and power pistons removal of the heads rendering access to the different cylinders. The Fig. shows a free piston gas generator which comprises a centre frame part 1 having at each end an enlarged portion 5. A liner 2 in the part 1 forms a power cylinder and liners 9 in the' portions 5 and rings 7 form compressor cylinders. Compression takes place on the outward stroke and at the rear of the compressor pistons cushioning spaces 25 are formed. Extensions 16 are fitted to the rings 7 and batts 8 hold the extensions and the rings to the portions 5. The cushioning spaces 25 in which pistons 14 operate are formed by liners 17 having radially enlarged parts 18. The compressors draw in air from manifolds 31 and deliver it to manifolds 34 which lead to an annular chamber 36 around scavenging ports 37. Coolant is circulated in spaces 41, 46, 47 and 28. Exhaust ports 38 are opened in advance of the ports 37 and remain open during the entire period that ports 37 are open. The parts of the engine casing are stated to be easily and quickly assembled.
Patent GB-654898-A (GB)
Title: Improvements in and relating to electric heating systems
IPC: F24C15/10
Filed: 1948-09-21
Abstract: 654,898. Switching systems for heating resistances. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 21, 1948, No. 24690. Convention date, Sept. 25, 1947. [Class 38 (iv)] [Also in Group XI] A heating system comprises several heating units 2, 3, e.g. a twin heating unit electric hotplate or range, each unit having one or more heating elements 13, 14 controlled by a switch 19 for each unit, an extra heating element 15 in each unit, and a switch 25 connected with the elements 15 so that the element 15 of one unit only may be energized at the same time. The element 15 is in parallel with the elements 13, 14 which are in series. The switch 19 energizes the element 14 separately or in series with the element 13. In Fig. 4 each unit has three elements 28-30 in series, and the elements 30 of one unit only may be energized separately by a switch 40 common to both units, the element 30 of the other unit being energized only in series with the element 29 or elements 28 and 29.