baber/WOPTO huggingface dataset:
Patent GB-591997-A (GB)
Title: Improvements in or relating to thermostatically-controlled electric heating units
IPC: F24H1/10
Filed: 1944-07-31
Abstract: 591,997. Temperature-responsive actuating- elements. WALTER, A. H. July 31, 1944, No. 14548. [Class 64 (ii)] [Also in Groups XI and XXXVII] A thermostatically-controlled electric heating unit comprises a resistance in a highly-expansible sheath 31 to which is attached an elongated support 39 carrying a switch 44 at its end, a non-expansible rod 41 connected at one end to the sheath at a point spaced from the support and connected at the other end to the switch, which opens on expansion of the sheath, which is of copper or stainless steel and contains a wire in insulating material. In an oven the sheathed heating element 31 is arranged beneath a false floor 23 and a lagged floor 21 and to a downwardly bent part of the element is soldered a lug 38 projecting through the floor 21 and carrying at its other end a tube 39 preferably of material of high thermal expansion. A rod 41 of metal having a low coefficient of thermal expansion is soldered at one end to the element 31 and passes through the floor and axially through the tube 39 to a microswitch 44 on a rocking frame 42 pivoted at 43 to the base. A spring 46 holds the frame 42 against a cam 47 on a spindle 48 rotatable from a setting knob 29 in front of the oven to adjust the thermostat. On a block 51 sliding against a nut 52 on the end of the rod 41 is pivoted a lever 50, so that on expansion of the element 31, the lever 50 moves to open the contacts 45 of the switch, which closes on contraction of the element 31. The tube 39 compensates for the ambient temperature and the temperature of the oven or hot-plate. A setting knob 29 of the cam 47 opens the switch when set at zero. In a water-heater, Fig. 8, the part of the element 31 actuating the switch is enclosed in an airtight casing 80 immersed in the water in a tank 70 so that it expands more than if wholly immersed directly in the water. The non-expansible rod 41 passes through the casing 80 and through tubes 39, 79 preferably of expansible material. In heating a building, Fig. 16, the elements 31 are placed against the walls and the tube 79 to which the rod 41 is attached may project through a wall to compensate for ambient temperatures. All the heaters are controlled through a relay or a 3 way switch is provided.
Patent GB-767801-A (GB)
Title: Branched-chain condensation polymers
Inventor: LINCOLN JAMES
IPC: C08G69/40
Filed: 1952-06-10
Abstract: Branched chain polyesters or polyamides are produced by condensation between bifunctional polyester- or polyamide-forming reactants and a minor proportion of a polyfunctional intermediate containing 3-10 ester- or amide-forming functional groups separated from each other by polyalkanoxy chains, none of which is less than 25 atoms long. The polyfunctional intermediates are formed by reaction between a polyfunctional "core compound" and one or more alkylene oxides or their equivalents (e.g. the cyclic carbonate of a glycol).  Core compounds mentioned are glycerol, pentaglycerol, erythritol, pentaerythritol, dipentaerythritol, sorbitol, mannitol, mannitan, phloroglucinol, pyrogallol, 2.2.6.6 - tetra - (g  - hydroxypropyl) - cyclohexanol and 3.3.5.5.31.31.51.51 - octa - (g  - hydroxypropyl) - 4.41 - dihydroxydicyclohexyl.  The terminal OH groups of the initially formed polyfunctional intermediates may be replaced by reactions described in general terms by carboxyl, or amino groups. The products may be fibre-forming and are said to be more penetrable by solvents and dyestuffs than ordinary polyesters or polyamides. Examples describe polymers produced from dimethyl terephthalate, ethylene glycol, ester-interchange catalysts and (1) a tri-functional intermediate of molecular weight 3000-4000 produced from 60-80 mols. of ethylene oxide and 1 mol. of glycerol, (2) polyethanoxy pentaerythritols produced by reacting 46 or 80 mols. of cyclic ethylene carbonate with 1 mol. of pentaerythritol in presence of potassium carbonate at 200 DEG  C.  Specification 598,309, [Group IV], is referred to.
Patent GB-186877-A (GB)
Title: Improvements in or relating to agricultural tractors
IPC: A01B63/02
Filed: 1921-05-06
Abstract: 186,877. Virel, A. de, and Cahen, M. E. May 6, 1921. Lifting-devices, power.-A device for raising a plough &c. towed by a tractor comprises a. cable 98, Fig. 2 secured to the tractor and passing over a pulley 96 on the plough frame and thence to a capstan. After the plough has been freed from the ground engagement a stop 99 on the rope engages the pulley and the plough is lifted at an increased speed. The stop may comprise a pair of blocks 106, Fig. 4, mounted on a bolt 105 round which the rope is passed, or a split clamping-member fitted with a heelpiece. In a further modification the rope is cut and the ends lashed round a block.
Patent GB-673555-A (GB)
Title: Preparation of crystalline precipitates of difficultly soluble penicillin compounds
IPC: C07D499/24
Filed: 1950-06-12
Abstract: A difficulty soluble compound of penicillin with an organic base such as procaine is prepared in a crystalline form suitable for injection by mixing an aqueous solution of a penicillin salt with an aqueous solution of a procaine salt in the presence of a predetermined number of crystal nuclei of said difficultly soluble compound per unit weight of the penicillin salt used.  In one example, procaine-penicillin is ground in a ball mill with an aqueous solution of a non-ionic dispersing agent and crystals of 0-45m  are separated by sedimentation.  Nuclei too small to permit accurate counting are then removed by sedimentation.  A small quantity of a saturated aqueous solution of procaine hydrocloride is added to an aqueous solution of potassium penicillin, cooled to 10-12 DEG  C. and allowed to stand with stirring after the addition of 300,000 millions of procaine penicillin nuclei per kilogram of the potassium salt. Excess of aqueous procaine hydrochloride containing a dispersing agent is added dropwise with stirring over 6 hours.  The suspension is screened on a cloth of 75m  mesh, washed free from chloride and dried to produce crystals of 80-100m .  In another example 400,000 millions of grafting nuclei per kilogram of penicillin salt are used and the crystals produced are 50-100m  in size.
Patent GB-528932-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F3/08
Filed: 1939-05-17
Abstract: 528,932. Lifting-jacks. SMITH'S JACKING SYSTEMS, Ltd., and SESSIONS, D. W. May 17, 1939. No. 14718. [Class 78 (iii)] A lifting-jack is formed with a rubber foot 31 having radial recesses 33 on the groundengaging surface and a spigot 32 which fits into the end of the tube forming the standard. The spigot is rounded to fit the splayed end of the tube as shown at 34.
Patent GB-1464422-A (GB)
Title: Stabilising of the hot resistance of ceramic positive-tempera ture coefficient resistors
IPC: H01R4/00
Filed: 1974-04-03
Abstract: 1464422 Positive temperature coefficient resistors SIEMENS AG 3 April 1974 [18 June 1973] 14719/74 Heading H1K The hot resistance of a barium titanate ceramic positive temperature coefficient resistor having stoved-on electrodes of Ag over In or In-Ga alloy is stabilized by heating the resistor, either during or after the stoving-on of the electrodes, to 400‹-500‹ C. for 1-4 hours. This treatment is believed to remove mechanical stress and to reduce conductive "oxygen gaps" produced in the ceramic lattice by the stoving- on process. The resistor preferably comprises Sb-doped barium titanate.
Patent GB-900863-A (GB)
Title: Attachment for use in conjunction with a tape recorder
IPC: H04B1/22
Filed: 1960-04-27
Abstract: 900,863. Radio receiving apparatus. McKECHNIE, A. April 27, 1961 [April 27, 1960], No. 14752/60. Drawings to Specification. Class 40 (5). Apparatus for use in conjunction with a tape recorder consists of a housing containing radio receiving apparatus comprising a variable tuned circuit detector, volume control and on/off switch and a microphone circuit comprising a microphone, volume control and on/off switch, the outputs of the radio receiving apparatus and the microphone circuit being connected in common to a jack socket mounted on the wall of the housing. An aerial input socket and earth terminal as well as the on/off switches and volume and tuning control members are also mounted on the walls of the housing. By suitably setting the on/off switches either received radio signals or locally produced sound signals may be recorded on a tape recorder coupled to the output jack of the apparatus. The detector in the radio receiving circuit may consist of a crystal or metal rectifier or of a transistor.
Patent GB-185197-A (GB)
Title: Improvements in or relating to eyeletting or the like
IPC: A43D100/02
Filed: 1921-05-28
Abstract: 185,197. British United Shoe Machinery Co., Ltd., and Goddard, J. W. May 28, 1921. Setting eyelets; work feeding mechanism. - A machine of the type described in Specifications 720/07, 720A/07, and 720B/07, is adapted for setting blind or invisible eyelets or blind hooks. The setting-member enters the hole previously punched in the work and a separate and additional part moving relatively to the barrelspreading shoulder presses on the work to position the shoulder at a definite point in the layers of the work at each station in the machine where the shoulder enters the work. The setting-member 1 carried by the support C<1> enters the work punched in a previous cycle of the machine and fed by the punch to the position beneath the upper set 30 which carries the eyelet. The separate arm 4 having a ring 5 at one end and pivoted to the arm 11 at the other, is moved by the bell-crank lever 17 having a roller 19 following a cam-track 6 in the disc 7, by means of the link 14. The downward movement of the arm 4 presses the layers 26, 27, 25 on to the setting-member 1, positioning the shoulder 2 at a definite point amid the layers as in Fig. 4. The layers pressed below the shoulder are held there by the roughened surface 3 of the member 1. The ring 5 fits closely round the hole in the work and is embraced closely by the presser foot 9, to avoid distorting the hole. After the work has been accurately positioned on the shoulder 2, the arm 4 is lifted by the bell-crank lever 17 and link 14, and is constrained to move away from the hole in the work by engagement with a roller 21 on a fixed arm. The upper set 30 then descends carrying an eyelet, which is set by the shoulder 2 between the correct layers of the work as shown in Fig. 5. The disc 7 has a cam 10 also for releasing the presser foot 9 each time the work is fed by the punch. The lower set 1 is stated to be of the same nature as the upper set described in Specification 2576/15.
Patent GB-1498056-A (GB)
Title: Electromagnetic flapper valve
IPC: F15B13/044
Filed: 1975-04-10
Abstract: 1498056 Valves TOKYO KEIKI CO Ltd 10 April 1975 [25 April 1974] 14840/75 Heading F2V In an electromagnetic flapper valve a paramagnetic spacer 22 is provided to improve the control linearity of the valve against current through the electromagnet. An annular groove 19 may be provided in the core and a ferromagnetic spacer 21 may be provided to allow coils of different length to be used. The position of the spacers may be reversed and may each be made of a stack of sheet material. The two stacks may be interleaved.
Patent GB-637774-A (GB)
Title: Improvements in head and jaw releasable fastenings
IPC: E05C19/02
Filed: 1948-06-02
Abstract: 637,774. Catches. HARVEY & CO., Ltd., M., and JEFFRIES, P. W. June 2, 1948, No. 14855. [Class 44] In a fastening of the kind comprising a head adapted to be yieldably retained between spring loaded jaws, the jaws are provided with abutting portions to limit the closing movement of the jaws. In the form of Fig. 4, the jaws are pivoted in a housing 34 on integral pins 36 and urged together by coil springs 33 engaged over portions 38. The abutting surfaces 27 are of 'V' form and inter-fit to prevent the jaws rocking as a unit. The housing has an opening 35 to pass the head 12. When the head is engaged between the jaws the ends 25 of the jaws contact the sides of the neck 13 before the abutting surfaces of the jaws meet. In a modification the housing is not provided, the jaws being carried on a mounting plate corresponding to the back plate of the housing. In this case, separate pivot pins are passed through holes in side flanges on the plate and holes in the jaws. In a similar form, Fig. 6, both jaws are mounted on a single pin 44 and have flat abutting surfaces 42, 43.
Patent GB-162945-A (GB)
Title: Improvements in or relating to detachable fasteners for buttons, hooks, eyes or the like
IPC: A41F1/00
Filed: 1920-06-01
Abstract: 162,945. Bilbrough, C. F. S. June 1, 1920. Button - fasteners; hooks and eyes.-A detachable fastener for buttons, hooks, eyes, &c., of the kind in which a looped portion holds resiliently two leg members in contact whilst permitting the eyed shank of the button &c. to be moved along one leg, round the loop, and along the other leg into a position in which it is retained, the button eye is retained on the leg a, Fig. 1, between two bent parts a<2>, a<3> of the leg a<1>, or, as shown in Fig. 2, between a part a<2> on the leg a<1> and a part a<3> formed by extending the leg a into a second loop b and making the bend a<3> in its return part. The Provisional Specification refers to Specification 140,925.
Patent GB-312071-A (GB)
Title: Improvements in process and apparatus for producing combustible gas
IPC: C10J3/00
Filed: 1929-05-13
Abstract: 312,071. Semet-Solvay Engineering Corporation, (Assignees of Hughes, C. H., and Steere, F. W.). May 18, 1928, [Convention date]. Producers.-Water or other liquid is supplied to a gas producer to prevent formation of clinker and to facilitate its removal by the mechanical grate. The water &c. is supplied into the fuel bed through three rows of nozzles 90 in the walls, below the grate through nozzles 77 in the ashpit and through nozzles 88 in the vertically movable poker member 60. Preferably water is supplied in excess so that sufficient will pass through the grate to maintain a wet ashpit. A flux, such as soda or lime, may be mixed with the fuel before delivery, or may be supplied direct to the producer. The vertically movable poker member may be replaced by a flat fixed grate section, or by an upstanding column in the body of the producer. According to the Specification as open to inspection under Sect. 91 (3) (a), steam or other gaseous fluid may be introduced into the fuel bed. This subject-matter does not appear in the Specification as accepted.
Patent GB-281954-A (GB)
Title: Improvements relating to ceiling lights
IPC: F21S13/00
Filed: 1927-06-07
Abstract: 281,954. Lindley, F. R., and L. H. M. Engineering Co., Ltd. June 7, 1927. Ceiling lamps.-In a daylight ceiling lamp, light is directed upwardly upon the ceiling as well as downwardly, all the light being passed through daylight filtering screens. The lamp comprises a box having flared sides 2 and a bottom 3 hinged at one end and secured at the other end by a fastening 4. In the sides 2 are fitted daylight filtering glass panels 5 and the bottom face 3 is fitted with similar panels 9. Above the panels 9 are arranged spherical or paraboloidal reflectors 10 having the upper parts cut away at 11 so that light from the lamps 12 passes upwardly through the openings 11 and out through the panels 5 on to the ceiling. The lamps 12 are suspended from the top 1 of the box by adjusting screws 13 so that the filaments can be adjusted to the most suitable points relatively to the reflectors 10. The fitting may be suspended from the ceiling by eye-bolts 14. The interior of the box may be enamelled or polished.
Patent GB-806130-A (GB)
Title: Improvements in or relating to the production of thin plates of ceramic material
IPC: B28B1/26
Filed: 1956-05-14
Abstract: Plane or profiled, uniformly thin ceramic plates are obtained by immersing a porous absorbent slab, into a slurry, draining off the surplus, drying, peeling off the deposited cake and then firing.  The slurry can be of porcelain, earthenware, stoneware, clay, ceramics consisting solely of oxides which may also be porous, or e.g. a clay, alumina, coke kaoline mixture.  The thickness of deposition depends on concentration of slurry, length of immersion, and the absorption capacity of the slab.  Deposition is accelerated by maintaining the pores in the slab at a reduced pressure and increased pressure aids removal from the slab.  A thin water permeable fabric (non-reactive with the slurry) can cover the slab prior to immersion so that the cake can be removed more easily.
Patent GB-407567-A (GB)
Title: Improvements in electrically operated time-controlled alarm mechanism
IPC: G04C23/16
Filed: 1933-05-25
Abstract: 407,567. Time-alarm signals. SOC. INDUSTRIELLE D'HORLOGERIE ET D'APPAREILS ELECTRIQUES SINEL, 82, Avenue de Paris, Versailles, France. May 25, 1933, No. 15132. Convention date, May 28, 1932. [Class 118 (ii).] In an automatic time-release mechanism a sleeve is freed by the clock to. move axially and close the audible alarm circuit and to permit the illuminating or other switch to operate. The audible signal may be disabled or interrupted and its duration is controlled by the clock. The moment of alarm is set by means of a spindle 1 provided with a disc 2 carrying a projection 3 adapted to be received in an opening 5 of a clock-driven wheel 4 carrying by its sleeve 6 a boss 9 of insulating material. The resultant movement to the right causes contact of a wiper 10 with a fixed segment 11 and the closing therefore of the alarm circuit. A toothed sector 13 rigid with the boss 9, by the same movement to the right, gears with a clock-driven pinion 16 so that the wiper is caused to travel over the segment 11 and eventually leave it, thus terminating the signal. Another circuit, say of a lamp, is also closed by the release by sleeve 6 of a lever 29 pivoted at 30 and adapted to complete the circuit at 32; 33. To interrupt the alarm a lever 20 may be operated to rock a lever 15 fast to boss 9 and thus shift wiper 10 free of contact segment 11. By securing the lever 20 in operated position the alarm may be completely disabled and to prevent movement of the sleeve assembly in such an event a lever 23 having bent ends may be mounted on the boss 9 to shift with lever 15 so as to bring its bent ends out of register with apertures in the fixed plate 8. To terminate closure of the auxiliary circuit the pivot spindle 30 may be turned to rotate the lever 29 to open the contacts 32, 33, the lever being then temporarily held by resting on the spring- controlled larger sleeve 27.
Patent GB-840109-A (GB)
Title: Improvements relating to the production of photographs capable of exhibiting a relief effect
IPC: G03B35/00
Filed: 1955-05-26
Abstract: 840,109. Photography in relief. WRIGHT,E H. May 14, 1956 [May 26, 1955], No. 15186/55. Classes 97(1) and 98(2) Photographs capable of exhibiting a relief effect when suitably projected are produced by forming a reduced virtual image of the subject, as by a concave .lens 10, and photographing this image using a different restricted area of the camera lens 11 for each area of the virtual image. This may be done for example by a rotating shutter 13 with a spiral slot 14. The photographs produced may be projected on the screen described in Specification 840,110.
Patent GB-1355361-A (GB)
Title: Benzamidoethyl benzene sulphonamide derivatives
IPC: C07C233/00
Filed: 1971-05-17
Abstract: 1355361 Benzamidoethyl benzene sulphonamide derivatives; 5-chloro-2-methoxy benzene derivatives FRANK W HORNER Ltd 17 May 1971 [29 May 1970] 15242/71 Heading C2C The invention comprises the compounds (a) p [2 - (5 - chloro - 2 - methoxybenzamido)- ethyl]-benzene sulphonamide and (b) p-[2-(5- chloro - 2 - methoxybenazmido)ethyl] - benzene sulphonyl chloride. Compound (b) may be obtained -by treating N-phenethyl-5-chloro-2-methoxybenzoate with chlorosulphonic acid. Compound (a) may be obtained by treating compound (b) with ammonia. The N-phenethyl-5- chloro-2-methoxybenzamide used as starting material may be obtained by treating methyl 5- chloro-2-methoxybenzoate with phenethylamine or by treating methyl-5-chloro-2-methoxybenzoate with sodium hydroxide to form 5-chloro-2- methoxybenzoic acid, reacting this with thionyl chloride to form 5-chloro-2-methoxy-benzoylchloride and reacting this with phenethylamine. The methyl-5-chloro-2-methoxybenzoate may be produced from 5-chlorosalicylic acid by treatment with dimethyl sulphate or by first forming the methyl ester and treating this with dimethyl sulphate.
Patent GB-128476-A (GB)
Title: Improvements in or relating to Pistol or Revolver Holsters.
Inventor: TRACY CHARLES DUNLOP
IPC: F41C33/02
Filed: 1918-09-19
Abstract: 128,476. Tracy, C. D. Sept. 19, 1918. Holsters.-A pistol or revolver holster has a barrel portion of sufficient width to allow angular movement of the barrel, and is formed at a to extend slightly round the trigger guard. The holster has a covering flap B provided with a spring or. alternatively, so secured to the back flap that immediately the strap b<2> is released from the button a<2>, which is preferably of capstan shape, the flap will spring up into the open position and not impede the withdrawal of the weapon.
Patent GB-308116-A (GB)
Title: Improvements in and relating to the mercerisation of cotton
IPC: D06M13/256
Filed: 1928-05-24
Abstract: 308,116. Marks, E. C. R., (Chemische Fabrik Stockhausen et Cie). May 24, 1928. Yarns, mercerizing. - In mercerizing cotton yarns and fabrics the process is accelerated, a more uniform product is obtained with strongly twisted yarn or with fabrics in which the weft is strongly beaten and the use of a weaker mercerizing liquor is made possible by the application of wetting agents comprising sulphuric acid compounds of oils, fats, or fatty acids or mixtures thereof obtained by the processes described in Specifications 293,480 and 293,717, [both in Class 2 (iii), Dyes &c.]. These compounds may be used alone or mixed with aromatic or hydroaromatic sulphonic acids or their salts, particularly alkylated naphthalene sulphonic acids such, for example, as the products obtained by the action of isopropyl or normal or iso butyl alcohol on naphthalene sulphonic acids, and the yarns and fabrics may be subjected to this preliminary wetting treatment or these wetting agents may be mixed with the mercerizing liquor.