baber/WOPTO huggingface dataset:
Patent GB-934716-A (GB)
Title: Improvements in and relating to voltage regulating apparatus
IPC: G05F3/06
Filed: 1959-10-15
Abstract: 934,716. Rectifying; waveform changing; automatic regulation. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 15, 1959 [Oct. 15, 1958], No. 35021/59. Classes 38 (2) and 38 (4). Electric supply apparatus which supplies a constant voltage to a load for varying load currents and input voltages from a non-sinusoidal source, comprises a transformer 13, 14, the primary winding 13 in series with a parallel circuit of inductor 17 and capacitor 18 being connected across the source, and the secondary winding 14 being connected in series with the load. The circuit 17, 18 is tuned to provide a high impedance to the fundamental frequency component of the source, this component being applied to the load unaltered. However, for harmonic frequency components this circuit is capacitative and its effect is such that a constant output voltage is provided as shown in Fig. 2, the load circuit comprises a bridge rectifier circuit 60, a filter arrangement of capacitors 63, 64 and inductor 65 and a load 62. The transformer may be wound on a first magnetic core 41 and the inductor on a second core 51. The non- sinusoidal source may be a ferroresonant voltage regulator 31 fed from a supply 39. A three-phase arrangement is also disclosed (Fig. 8, not shown).
Patent GB-750821-A (GB)
Title: A process for the preparation of steroid compounds
IPC: C07J9/00
Filed: 1953-12-16
Abstract: Cyclopentanopolyhydrophenanthrene compounds are prepared by reacting a g -hydroxy (or acyloxy)-a ,b -unsaturated ketone of the steroids series, in which the keto and hydroxy or acyloxy substituents are attached to the steroid nucleus and the a ,b -double bond is in the 4(5) or 8(9) position, with zinc and acid to form the corresponding a ,b -unsaturated ketone.  The preferred acids which may be used in this process are non-oxidizing mineral acids such as hydrochloric acid, and lower aliphatic carboxylic acids such as acetic, propionic and butyric acids and mixtures thereof.  The process is particularly applicable to D 4-3-keto-6-hydroxy (and acyloxy)-steroids and D 8(9)-7-keto-11-hydroxy (and acyloxy)-steroids. Suitable reactants mentioned are D 4 - 3,20 - diketo - 6b ,21 - dihydroxypregnene, D 4 - 3,20 - diketo - 6b ,21 - diacetoxy - pregnene, D 4 - 3,20 - diketo - 6b ,17a , 21 - trihydroxy - pregnene, D 4 - 3,20 - diketo-6b ,21 - dipropionoxy - 17a  - hydroxy - pregnene, 6,11 - dihydroxy - progesterone, e.g. as obtained by subjecting progesterone to the action of enzymes or fungi of the genus Rhizopus to form 6,11a  - dihydroxyprogesterone, 6,11 - diacetoxy - progesterone, D 4 - 3 - keto - 6a  - and b  - hydroxy - cholestene, D 4 - 3 - keto - 6b -acetoxycholestene, D 4 - 3 - keto - 6a  - acetoxycholestene, D 4 - 3,20 - diketo - 6a ,21 - diacetoxy-11 - hydroxy - pregnene, 6a  - and b  - hydroxycorticosterone, D 4 - 3,20 - diketo - 6b ,17a  - dihydroxy - 21 - acetoxy - pregnene, D 4 - 3 - hydroxy - 6 - keto - cholestene, D 4 - 3 - acetoxy-6 - keto - cholestene, D 4 - 3 - keto - 6 - hydroxyetiocholenic acid, D 4 - 3 - keto - 6 - acetoxyetiocholenic acid and methyl-D 8(9)-3,11-dihydroxy - 7 - keto - cholenate. In the examples D 4 - 3 - keto - cholestene is prepared from D 4 - 3 - keto - 6b  - hydroxy(and acetoxy)-cholestene and D 4 - 3 - keto - 6a  - acetoxycholestene, 11a  - hydroxy - progesterone is prepared from 6,11a  - dihydroxy - progesterone, and methyl - 3a  - acetoxy - D 8(9) - 7 - ketocholenate is prepared from methyl-3a -acetoxy-11a -hydroxy-7-keto -D 8(9)-cholenate.  D 4 - Cholestene - 3,6 - dione is obtained in addition to D 4-cholestene-3-one when D 4-cholestene-6b -ol-3-one is treated with zinc and acetic acid.  D 4 - Cholestene - 6a  - ol - 3 - one - 6 - acetate is prepared by treating a chloroform solution of D 4 - cholestene - 6b  - ol - 3 - one with dry hydrogen chloride.  Methyl - 3a  - acetoxy - 11a  - hydroxy - 7 - keto-D 8(9) - cholenate is prepared by treating methyl - 3a  - acetoxy - D 7,9(11) - choladiene with N - bromo - succinimide in tertiary butanol in the presence of a small amount of sulphuric acid.
Patent GB-1309587-A (GB)
Title: Machine for loading and unloading storage shelves
IPC: B65G1/06
Filed: 1970-07-29
Abstract: 1309587 Loading articles on to shelves; conveyers MENK APPARATEBAU GmbH and G ESSER 29 July 1970 [29 July 1969] 35084/70 Headings B8A and B8E Articles 2, Fig. 1, are fed to shelves 1 down a roller conveyer 5 and are transferred to the conveyer 5 from a conveyer 3 by a chain conveyer 11 supported by pulleys 12. Articles 2 are also removed from the shelving to a conveyer 4 via a rollerway 6 by driven wheels 7 which are supported on pivoting links 18, operated by linkage 19, so that the wheels 17 may be raised through slots in the shelves to propel the articles on to the rollerway 6. A plurality of rollerways 5, 6 are provided, one for each column of shelves, Fig. 2 (not shown). At the transfer point 8 the articles 2, Fig. 3, run on to pivoted rollerways 9a-9e the front ends of which are progressively lowered so that the articles are separately arrested by members 10a, 10b &c. As described the rollerways 9 are lowered magnetically, but hydraulic or pneumatic operation could be used. When all the rollerways 9 are full they are lowered bodily to transfer the articles to the chain conveyers 11. Fig. 6 shows the shelving. The loading and unloading conveyers and associated transfer mechanism may be separately movable to load and unload shelves at different locations. The chain conveyers 11 and members 10 may be raised to effect transfer of the articles from the rollerways 9 instead of tilting and lowering the rollerways as previously described. To prevent collisions the articles are withdrawn from the shelves at different speeds.
Patent GB-1207210-A (GB)
Title: Improvements in or relating to apparatus for and method of magnetizing
Inventor: LITTWIN ARTHUR KENNETH
IPC: H01F13/00
Filed: 1968-07-23
Abstract: 1,207,210. Magnetizing. A. K. LITTWIN. 23 July, 1968, No. 35124/68. Heading H1P. [Also in Division H2] A casing 18 having two magnetizable portions 20 is placed in a magnetizing head having outer magnetizing heads 34, 36 and an inner head 40. These heads are magnetized electrically by a circuit supplying converted D.C. to the coils 38 associated with the heads. A circuit for converting 3-phase A.C. into D.C. pulses whose strength and duration may be determined by the circuit, is disclosed (Figs. 6 and 7, not shown). In another embodiment the magnetizable portions 20 are replaced by a lining of magnetic particles in rubber (Fig. 5, not shown) and the lining is magnetized at two diametrically opposed places. The casing is subsequently used as the stator for an electric motor.
Patent GB-1362705-A (GB)
Title: Substituted phenylthiocarbamates having a herbicidal activity and processes for their manufacture
IPC: A01N47/22
Filed: 1971-07-27
Abstract: 1362705 Phenylthiocarbamates SCHERING AG 27 July 1971 [20 Aug 1970] 35129/71 Heading C2C The invention comprises compounds of the general formula in which R 1  is a C 1-5  alkyl group, R 2  is a hydrogen atom or a C 1-5  alkyl group, R 3  is a substituted or unsubstituted aliphatic, cycloaliphatic or aromatic hydrocarbon group or R 2  and R 3  together with the adjacent nitrogen atom represent a heterocyclic ring which may contain a further hetero atom. They may be prepared by (i) reacting a compound of the general formula with (a) a carbamoylchloride of the general formula or with (b) phosgene to form a chloroformic acid ester which is reacted with an amine of the general formula or (c) when R 2  is hydrogen, with an isocyanate of the general formula or by (ii) reacting a compound of the general formula with a chlorothioformic acid-O-alkyl ester of the general formula The compounds of the invention may be used as active ingredients in herbicidal compositions.
Patent GB-1173416-A (GB)
Title: Solid State Relay Circuit
IPC: H03K17/725
Filed: 1968-07-24
Abstract: 1,173,416. Control systems for consuming apparatus. SQUARE D CO. 24 July, 1968 [6 Sept., 1967], No. 35208/68. Heading H2H. A solid state switching circuit is arranged such that the application of an A.C. to the circuit causes operation of the circuit to either close or to open the switching circuit together with control circuit means to inhibit the operation of the switching circuit. A switching circuit for a load 14 comprises a TRIAC 13 which is rendered conductive by the application of a signal to its gate g. If a terminal T1 is positive with respect to a terminal T2, current flows from T1 to T2 by way of a diode bridge 15, resistor 3RES, the gate-cathode path of a thyristor SCR, the diode bridge 15 and the gate g to terminal T2 path of the TRIAC 13. The thyristor SCR is thus rendered conductive, which in turn renders the TRIAC 13 conductive, causing current to flow in the load 14. When the terminal T2 is positive to terminal T1, current flows in a similar path causing the thyristor SCR to become conductive once more and hence the TRIAC 13 with the consequent flow of current in the load 14. When it is desired to render the TRIAC 13 inoperative, a switch SW in a control circuit is closed, thereby energizing the primary winding of a transformer T from an A.C. source 28, 29. A capacitor 4C is thereby charged from the secondary winding of the transformer T by way of a diode bridge 25. The capacitor 4C is connected to the gatecathode circuit of the thyristor SCR such that the charge thereon inhibits firing of the thyristor and hence of the TRIAC 13. Voltage rate of change protection for the TRIAC 13 is provided by resistor IRES and capacitor 1C and surge protection by an element D1 which may be a Zener diode. The circuit arrangement shown in Fig. 1 provides a solid state relay circuit having a normally closed contact function, the modified circuit of Fig. 2 (not shown) provides a similar circuit, but which has a normally open contact function. The circuits are provided with components to provide noise suppression.
Patent GB-630984-A (GB)
Title: Improvements in ribbon guide for typewriter or like machine
IPC: B41J35/04
Filed: 1946-11-27
Abstract: 630,984. Typewriters &c. ROYAL TYPEWRITER CO., Inc. Nov. 27, 1946, No. 35248. Convention date, May 2. [Class 100 (iv)] A ribbon guide for a typewriter or the like comprises a guide member 2 including a guide part 3 forming one side of a guide slot 5, and a ribbon latch or retainer 7 forming the other side of the slot, and means 6 pivotally mounting the latch on the member 2 so that it is movable to a closed position in which the slot-forming portions are parallel and an open position where they diverge towards the ends remote from the pivot, the latch having a keeper 8 spaced laterally from the guide part 3 when the latch is open and extending across the end of the slot when the latch is closed. Opening movement is limited by the abutment of a laterally extending ear 17 with the guide member 2, and closing movement by the abutment of an ear 16 against the edge of a short oblique arm 4 of the guide 2, the ear 16 passing behind the arm 4 to prevent lateral movement of the latch, which is releasably held closed by a button 14 on the latch and a depression 15 in the arm 4. The parts 3, 4 are in planes inclined to each other and the keeper 8 projects laterally, and a finger-piece 13 is provided. A pair of guide members 2 may be used with a ribbon vibrator A, or one such guide may be used with the reversing mechanism of each ribbon spool by attachment to a vertical member secured to said mechanism. Specifications 630,982 and 630,983 are referred to.
Patent GB-750372-A (GB)
Title: Improvements in or relating to alternating current arc welding equipment
IPC: B23K9/10
Filed: 1953-12-18
Abstract: 750,372. Supply systems for welding arcs. LINCOLN ELECTRIC CO., Ltd., and HATTY, W. P. H. June 28, 1954 [Dec. 18, 1953], No. 35276/53. Class 38 (4). To permit the employment of a transformer 1 of relatively low open circuit voltage in an A.C. arc welding system having a choke 7 in the welding circuit 5, 8, the voltage drop across the choke during striking of the arc is reduced by shunting the choke with an impedance (preferably of lower value than that of the choke), such as a tapped reactor 24, under the control of a relay 10, 11 responsive to the voltage drop across the choke. As shown, the relay 10, 11 controls the connection of the reactor to the choke through a D.C. contactor 17, 25 supplied over a rectifier 15 from an auxiliary winding of transformer 1. In operation, when the welding circuit is open, there is no voltage drop across the choke so that relay coil 10 is not energized and its contacts 11, which are normally closed, complete an energizing circuit for contactor coil 17. Contacts 25 are consequently closed and connect the reactor across the choke. On striking an arc, relay 10, 11 is operated by the voltage drop across the choke and contacts 11, 25 consequently open to disconnect the reactor. The contactor 17, 25 is preferably made slow to release.
Patent GB-472101-A (GB)
Title: Improvements in or relating to microphonic materials
IPC: H04R21/00
Filed: 1936-12-23
Abstract: <PICT:0472101/III/1> <PICT:0472101/III/2> A microphone material comprises particles which are treated and prepared to leave gas enclosures and are subsequently coated with carbon.  In a particular form of the invention, the material comprises particles of comminuted silica gel or diatomaceous earth which are intumesced and coated with a conducting substance, preferably carbon.  In the preparation of the material, particles of silica gel, graded as regards size, are fed from a nozzle 1 to a flame generated by the recombination of atomic hydrogen produced by the disassociation of the hydrogen by an electric arc across the tips of electrodes 4, 5 to which the gas is supplied by pipes 2 3.  The intumesced particles, after having been graded as regards size and density, are placed in a cartridge 9 rotatable in a chamber 12 surrounded by a heating coil 14 and to which a gas, rich in carbon, such as methane, is fed by a pipe 15. An inert gas may be introduced into the chamber to remove undesired or contaminating products.
Patent GB-475842-A (GB)
Title: Improvements in processes and apparatus for pressing dental crowns
IPC: A61C13/00
Filed: 1936-12-24
Abstract: 475,842. Making artificial teeth. STEINLECHNER, H. Dec. 24, 1936. No. 35349. Convention date, Dec. 24, 1935. [Classes 83 (i), 83 (ii), and 83 (iv)] Dental crowns, especially of rustless steel, are shaped by first casting a hard tinbismuth alloy 9 around the pattern 7 which is stuck on a mandrel 6, then freeing and removing the mandrel 6 by a turnpin inserted in a hole 10, driving the mould 9 out of the slightly tapered flask 4, halving the pattern by a chisel in a longitudinal plane, after which a cup-like shell crown is placed in the cavity, the mould is reassembled within the flask 4, the shell edges are pressed out by an inserted pin to lie closely against the bore 11, so that the now inserted plastic filler will be wholly within the shell and bore, whereby hammering a closely fitting uniformly cylindrical plunger into the plastic mass in the bore will expand the shell into close contact with the mould cavity. The plane of splitting the mould metal 9 is previously determined by knife blade strips inserted where required longitudinally in the mould 4.
Patent GB-733136-A (GB)
Title: Improved apparatus for compacting articles on a conveyor
IPC: A23G7/00
Filed: 1953-12-18
Abstract: 733,136. Compacting articles on conveyers. GREER CO., J. W. Dec. 18, 1953 [Dec. 31, 1952], No. 35350/53. Class 78 (1). Apparatus for compacting articles as they move in spaced relation along a conveyer comprises an endless conveyer belt having a traverse which -is concave in transverse cross-section, a shaping support for said belt and means for vibrating the belt as it proceeds along the traverse to compact together articles carried by the belt laterally of the conveyer. In the embodiment shown, which is particularly adapted for handling chocolate-coated sweets, the sweets are delivered from a cooler on to a vibrating endless belt 24 which extends around rollers 30, 32, 34, Fig. 1. The upper run of the belt passes over a shaping surface 12 which comprises sections 12a, 12b, 12c, 12d supported on two vibrators 14. The upper surface of the sections 12b, 12c is concave in transverse crosssection, whilst the sections 12a, 12d each have a concave transverse cross-section at their inner end which gradually and smoothly merges into a straight line at the knife edges 20, 22. The frequency of the vibrations is such that the motion of the member 12 is not perceptible. Fig. 2 shows in perspective an arrangement similar to Fig. 1 with the section 12b omitted. As the chocolates move on to the vibrating belt 24 they compact towards the middle of the belt under the influence of the vibrations and' are fed on to cardboard liners 41 on a conveyer belt 40 extending around rollers 47, 46, 44, 48 and then lifted in groups and tiered on the liners in boxes 49.
Patent GB-818579-A (GB)
Title: Improvements in or relating to plansifters
IPC: B07B1/38
Filed: 1957-11-13
Abstract: 818,579. Sifting apparatus. BUEHLER GEB. Nov. 13, 1957 [Nov. 26, 1956], No. 35427/57. Class 117 The housing 1 of a plansifter has partitions 2 defining compartments 3, only one of which is shown in Fig. 2, and pairs of channel members 5 are secured to the partitions and each pair may slidably receive a sifting frame 9 and a collecting floor 10. Each floor has supporting battens 21 on its long sides and upper battens 22 secured to its upper face along its short sides. Pins 25 on the battens 21 carry springs 24 which urge the parts 9 and 10 apart and against the flanges 7 and 6 respectively of the channel members. Some of the pairs of members 5 do not receive a collecting floor in which case battens 27, Fig. 3, carry the springs. Each sifting frame includes a bolt cloth 13 and a widemesh wire cloth 14 provided with pieces of belting, balls or the like for cleaning purposes. A seal 26 is provided between each frame and flange 7. Material to be screened is fed to the top of each compartment, and the battens 21, 22 cause the passing fractions to flow transversely and be deflected by the partitions 2, Fig. 2, and the overriding fractions are passed off the frames longitudinally into junction boxes located at the ends of each compartment. The boxes contain partitions which control the passage of the various streams for either rejection or further sifting.
Patent GB-303004-A (GB)
Title: Improvements in or relating to machinery beds and frames
IPC: F16F15/023
Filed: 1928-12-03
Abstract: 303,004. Renault, L. Dec. 26, 1927, [Convention date]. Machinery beds.-In order to isolate a machine frame 1, Fig. 1, from the ground or floor and absorb vibration, a pneumatic cushion 2 is interposed. For small machines having a circular or square base, the cushion 2 is in the form of an annular tube or concentric series of tubes lying in channels in wooden sole plates 3, 4. For larger machines, several airtubes 5, Fig. 2, are lodged in recesses in the soleplates. The tubes may be canvas-covered.
Patent GB-301913-A (GB)
Title: Combined illuminated advertising sign device adapted to be lighted by daylight as well as by artificial light
IPC: G09F13/14
Filed: 1928-12-03
Abstract: 301,913. Adler, H. Dec. 9, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Signs.-A daylight reflector sign of the type having a top stencil 4 and an inclined mirror 2 has the mirror made semi-transparent and fitted with an opaque sheet 9 which is perforated with an inscription similar to that on the stencil so that when the stencil is not illuminated by daylight the inscription on the sheet 9 is illuminated by lamps 12 on a support 13.
Patent GB-915970-A (GB)
Title: Combine harvester
IPC: A01F12/16
Filed: 1960-10-18
Abstract: 915,970. Combine-harvesters. CLAAS, A., and CLAAS, F., [trading as CLAAS GEB.]. Oct. 18, 1960 [Oct. 29, 1959], No. 35749/60. Class 6(3). In a combine-harvester of the type having a transverse apron 13 and elevator 15 feeding crop to a beater 17 and concave 18, a stonecatching trough 20 is arranged across part of the width of the entry edge of the concave, The trough extends along approximately onethird of the length of the concave in the side facing the crop so that butt-ends of the crop, where stones are more prevalent, will pass thereover. The trough which may be covered by a grid 21 flush with the concave, when not in use, is deeper at its forward side and has a sloping floor, Fig. 4 (not shown).
Patent GB-1284934-A (GB)
Title: Improvements in or relating to the manufacture of paper
Inventor: ZIEMANN HEINZ
IPC: C08L77/00
Filed: 1969-07-16
Abstract: 1284934 Papermaking FARBENFABRIKEN BAYER AG 16 July 1969 [16 July 1968] 35763/69 Headings D2A and D2B A polymer is made by condensing a polyamine, optionally with a diamine also, a dicarboxylic acid and an amino-carboxylic acid or lactam thereof, to form a polyamide, and then reacting this polyamide with compounds of which each molecule can react with more than one amino group, in amount less than enough to react with all of the basic amino groups. The polymer may be added to paper pulp to increase the retention of fillers and pigments in the manufacture of paper, and to improve the freeness, or may be added to white water to assist filtration, sedimentation and flotation. In preparative Examples: (1), (5), (6) and (7) diethylene-triamine is condensed with adipic acid and epsilon-caprolactam, in varying proportions, in the presence of adipic acid di-hydrazide and the resulting polyamide is reacted with 1, 2-dichlorethane; (2)-(4) the polyamide of preparative Example 1 is reacted with 1, 6-dichloro-n-hexane, the dichloride of polyethylene glycol (mol. wt. 600), or a triglycidyl ether made from trimethylolpropane, ethylene oxide and epichlorohydrin respectively, (8) methyl-bis-(3-aminopropyl)-amine and 1, 6-diaminohexane are condensed with adipic acid and epsilon-caprolactam in the presence of adipic acid dihydrazide and the resulting polyamide is reacted with butane-1, 4-bisglycidyl ether; and (9) N-2-aminoethylpiperazine is condensed with adipic acid and epsiloncaprolactam in the presence of adipic acid dihydrazine and the resulting polyamide is reacted with epichlorohydrin. In Examples: (1) the product of each of the preparative Examples is added to a papermaking pulp of sulphite cellulose containing china clay, titanium dioxide, commercial resin size, aluminium sulphate and a commercial whitening agent, and made into paper sheets; similar sheets using the reaction product of epichlorohydrin and a polyamide prepared from tetraethylenepentamine and adipic acid, or the reaction product of an excess of epichlorohydrin and a polyamide prepared from diethylene-triamine, triethylene-tetramine, epsilon-caprolactam and adipic acid are described for comparison; (2) waste paper is dead-beaten, the product of each of the preparative examples added to portions of the slurry so obtained, and freenesses determined; (3) the product of each of the preparative Examples is added to white water before entry into a flotation pulp saver. The specification includes long lists of other polyamines, diamines, dicarboxylic acids, aminocarboxylic acids and compounds that will react with more than one amino group. This last includes dihalo-alkanes, dihalo-ethers, halohydrins, epihalohydrins, bis-epoxy compdunds, omega-halocarboxylic acid halides, compounds containing two or three vinyl groups, hydrohalic acid esters, alkyl- or arylsulphonic acid esters, sulphonic acid half esters, chloroformic acid esters, 3-chloro-2-hydroxypropyl ethers and glycidyl ethers of polyalkylene oxides.