baber/WOPTO huggingface dataset:
Patent GB-361224-A (GB)
Title: Improvements in or relating to endless track units
IPC: B62D55/24
Filed: 1931-03-03
Abstract: 361,224. Endless track vehicles. WHITE, A. E., 5, Quality Court, Chancery Lane, London.-(McNeil Boiler Co. ; 93, East Crosier Street, Akron, Ohio, U.S.A.) March 3, 1931, No. 6559. [Class 79 (i).] A tractor unit comprises a pair of wheels 5 which are grooved peripherally, the side walls of the grooves being provided with apertures 9, the said wheels being encircled by a rubber track or belt 10 formed with notches 12 to permit the track to flex into snug engagement in the grooves in the wheels, the load on the track causing the rubber to bulge into the apertures 9 so as to give a positive drive between the wheels and the track. In the construction shown, the groove in each wheel 5 is formed by a fixed flange 6 and a flange 7 bolted thereto at 8, the track being fitted in place when the flange 7 is removed. The apertures 9 extend from the apex of the V groove rather more than half-way up the walls of the groove. The wheels 5 are preferably so mounted that they may have yielding movement towards each other. The track band 10 comprises a' body of tough rubber provided with a non-skid tread 11. A reinforcing strip 13 of layers of rubberized cotton or cord fabric is wound about the track during its manufacture. Strips 14 of heavier or " breaker " fabric are provided on each side of the reinforcing strip 13, layers 15 of highly-resilient rubber being arranged between the strips. The track is vulcanized as a single unit.
Patent GB-1061335-A (GB)
Title: Penicillins
Inventor: SMITH HARRY
IPC: C07D499/64
Filed: 1965-02-16
Abstract: Penicillins of general formula <FORM:1061335/C2/1> and non-toxic salts thereof, where R is an alkyl, aryl, aralkyl or heterocyclic group which may be substituted and X is H, or an alkoxycarbonyl, aralkoxycarbonyl, aryloxycarbonyl or acyl group; are prepared by (A) reacting an aminopenicillin of general formula <FORM:1061335/C2/2> where R has the above meaning, with an acid chloride of formula CICONH.NHX, where X has the above meaning other than H; or (B) reacting 6-aminopenicillanic acid or a salt thereof with a reactive derivative of an acid of formula <FORM:1061335/C2/3> wherein R and X have the above meanings other than H.  Penicillins of general Formula I where X is hydrogen are prepared by the catalytic hydrogenation of penicillins of general Formula I in which X is a benzyloxycarbonyl or substituted benzyloxycarbonyl group.  Typical compounds are 6-(D-a -hydrazino carbonylamino - a  - phenylacetamido) - penicillanic acid and 6 - (D - a  - benzyloxy carbonylhydrazocarbonylamino - a  - phenylacetamido) penicillanic acid.  The penicillins are useful in the treatment of humans and animals.
Patent GB-386153-A (GB)
Title: Improvements in surface electrodes for use in diathermy treatments of the body
IPC: A61N1/06
Filed: 1932-03-04
Abstract: 386,153. Electromedical apparatus. HUTH, J. A., 7, Walnut Street, Natrona, Pennsylvania, U.S.A. March 4, 1932, No. 6617. Convention date, March 4, 1931. [Class 81 (ii).] Apparatus for highfrequency diathermic treatment comprises electrodes of thin aluminium foil preferably about 0À02 mm. in thickness. The electrodes may be used for a single treatment only and may be cut, or torn along perforated lines, from large sheets as required. They may be connected with the apparatus by detachable terminal clamps, and may be pressed against the body by sand-bags or bandages. As shown, in an electrode clamp comprising arms 10, 11, adjustable on a support 12, and carrying permanent electrodes 13, 14, the latter may be lined with pieces of aluminium foil 16, 17, instead of the moist rubber sponges 15 usually employed.
Patent GB-512440-A (GB)
Title: Improvements in or relating to electrically driven shaving apparatus
IPC: B26B21/38
Filed: 1938-03-03
Abstract: 512,440. Safety razors. SIEMENS & HALSKE AKT.-GES. March 3, 1938, No. 6728. Convention date, March 18, 1937. [Class 30] An electrically-driven razor has a swinging rod 2 which is mounted on a flexible water-tight diaphragm 4 and carries an armature 3 and a spherical head adapted to engage in a slot in a blade-carrier 7. The armature can vibrate without contact on either side with rigid parts of the device. The poles a, b of the magnet core 17 are energized by coils 16 connected to a battery 20. The magnet may be shaped so that the armature is suspended in a space between the limbs of the magnet. The end cap 10 is secured to the guard plate by clips 11.
Patent GB-1089362-A (GB)
Title: Improvements concerning tobacco cutting machines
IPC: A24B7/12
Filed: 1964-02-18
Abstract: 1,089,362. Cutting tobacco. MOLINS ORGANISATION Ltd. and D. W. MOLINS. Feb. 17, 1965 [Feb. 18, 1964], No. 6733/64. Heading A4C. [Also in Division B3] A tobacco cutting machine comprises a rotary drum 8 carrying peripheral knives 13 with edges passing across a tobacco feed mouthpiece 5, a rotatable grinding cylinder 22, a trueing diamond 25 which is reciprocable on a path along the length of the grinding cylinder 22, and means for moving the drum 8 and cylinder 22 respectively towards the mouthpiece 5 and the path of the diamond 25. Oppositely threaded lead screws 25 and 51, associated respectively with a bracket 23 carrying the cylinder 22 and end frames 44, 45 of a cradle 60 in which the drum shaft 9 is journalled, are actuated by a lever 54 and a pawl and ratchet device 55 simultaneously to lower the cylinder 22 and raise the drum 8 in the latter case by pivoting the cradle 60 about pivots 46, after a trueing operation on the cylinder by the diamond 25. The diamond 25 is carried by a carriage 29 along a rail 30 and is adjustable in position relative to the grinding cylinder 22. Shredded tobacco is carried away through a passage formed between the drum 8 and a cover plate 57 in an air stream directed through openings 17 in the drum 8 adjacent the knives 13. The knives 13 may be inclined relative to a radial plane through the axis 9 of the drum 8.
Patent GB-622336-A (GB)
Title: Improved apparatus for moulding plastic articles
IPC: B29B13/02
Filed: 1947-03-11
Abstract: 622,336. Heating moulding preforms. FORD MOTOR CO., Ltd. March 11, 1947, No. 6806. Convention date, April 8, 1946. [Class 87 (ii)] A tray for supporting plastic preforms during heating comprises a base 12 having apertures 18 and-handles 17, and two superposed plates 19 having apertures 18A and handles 20. When the tray is in the (radio frequency) heater the preforms rest in the apertures 18A on imperforate parts of the base 12. After the tray has been taken out of the heater and placed in the moulding press the plates 19 are moved to register the apertures 18 and 18A, whereupon the heated preforms drop into the mould cavities. Pin-and-slot connections 24 are provided between the plates and the base.
Patent GB-1216552-A (GB)
Title: Diene polymers grafted with dienophile monomers
Inventor: SONG WON RYUL
IPC: C10M149/08
Filed: 1968-02-12
Abstract: 1,216,552. Lubricants. ESSO RESEARCH & ENG. CO. 12 Feb., 1968, No. 6807/68. Heading C5F. [Also in Division C3] Lubricants hydraulic fluids, cutting and transfer oils comprise an oil and an-oil-soluble graft polymer prepared by grafting a C 3 -C 24  ethylenically unsaturated, nitrogen-containing monomer having the formula or wherein R is hydrogen or alkyl and X is hydrogen, halogen, cyano or alkyl on to a polymer having at least 0.2 mole per cent unsaturation and consisting of a polymerized conjugated C4 or C5 diolefin, the polymer having a predominance of 1,4-addition configuration, and in which the 1,2-addition configuration does not exceed 10%, said graft polymer containing 0À005 to 0À6% by weight of nitrogen and having a molecular weight of between 1,000 and 300,000. The oil may be mineral or synthetic e.g. carboxylic acid esters, phosphoric acid esters, poly-olefins, siloxanes, sulphite esters, carbonates, mercaptals, formals, polyglycols, voltalized oils and fatty oils (examples of each are given). The composition may also contain resins, rubber, polyolefins, graphite, molybdenum disulphide, zinc oxide, ketones, alcohols, aldehydes, halogenated or nitrated compounds, sulphonates, soaps, phenates, alcoholates, phosphorus acid esters, xanthates; thiocarbomates, salicylates, amines and thiophosphites.
Patent GB-1262928-A (GB)
Title: Protective fittings for pallets
Inventor: HACK HENRICUS LUCAS JOANNES
IPC: B65D19/31
Filed: 1969-02-07
Abstract: 1,262,928. Load handling pallets. HOUTINDUSTRIE "STEENHOUT" N.V. "DE MOLENHEIDE". 7 Feb., 1969, No. 6845/69. Heading B8H. The bearers 6 of a pallet have each of their ends protected against damage by means of a U-shaped steel plate 1, the limbs 2, 3 of which lie against the sides of the bearers and are joined at their free ends by metal plates 4, 5. The plates 4, 5 are positioned outwardly of the edges of the limbs and are received in the gaps of a spaced planked deck or in recesses (not shown) of a continuous deck to secure the plates 1 to the pallet.
Patent GB-255003-A (GB)
Title: Method of and means for preparing quick-traverse bobbins for dyeing, washing and the like operations
IPC: D06B5/16
Filed: 1926-03-12
Abstract: 255,003. Mond, A. L., (Krantz, H. [Firm of]). March 12, 1926. Bobbins, cop tubes, &c.-Quick-traverse yarn bobbins are prepared for dyeing, washing, &c. on dyeing spindles in a circulating dye-bath by winding the yarn on a springy former 1 in the form of a hollow split cylinder while the latter is in expanded condition. The former 1 is then allowed to contract and the bobbin 3 is pushed off it on to a perforated dyeing spindle 4, Fig. III. After dyeing, the former 1 in contracted condition is inserted in the end of the dyeing spindle and the bobbin is pushed back on to the former for further treatment.
Patent GB-1415461-A (GB)
Title: Switching circuit for tone-ringer or like load means
IPC: H04M19/04
Filed: 1973-02-13
Abstract: 1415461 Substation circuits MICROSYSTEMS INTERNATIONAL Ltd 13 Feb 1973 [24 July 1972] 6909/73 Heading H4K A switching circuit comprises a pair of input (power supply) terminals, a threshold circuit connected across the terminals and adapted when the input voltage is below a predetermined threshold to connect a dummy load across the terminals and when the input voltage goes above the threshold to disconnect the dummy load and enable a switch to connect a main load across the terminals, and means to reduce the threshold when the switch is operated. The object of lowering the threshold is to prevent possible parasitic oscillation if the supply voltage at the terminals drops each time the main load which carries a higher current than the dummy load is switched in. As shown the dummy load comprising resistor R 2  is normally connected across a capacitor C 1  (charged from a telephone line via a diode bridge D 2  to D 5 ) via transistors TR 1  and TR 2 . When ringing current is applied to the line the charge on capacitor C 1  rises above a level set by Zener diodes ZD 1  and ZD 2  in series via a resistor R 3 . These diodes conduct switching on a transistor TR 3  enabling a transistor switch TR 4  to connect the tone ringer 10 (i.e. the main load) across the line and to block the path through transistors TR 1  and TR 2 . When TR 4  operates D 1  conducts effectively shorting ZD 1  and thus lowering the threshold. TR 6  and TR 7  provide a stable power supply. Zeners ZD 3  and ZD 4  protect against voltage surges and diodes D 6  and D 7  prevent TR 2  from saturating. The switches shown as transistors may be bipolar transistors or field-effect transistors. Integrated circuit may be used. The use of vacuum tubes as switches is also suggested.
Patent GB-401561-A (GB)
Title: Improvements in or relating to thermionic valve supporters and the like
IPC: H01R33/975
Filed: 1933-03-07
Abstract: 401,561. Thermionic valve holders. WILSON, J. C. and BAIRD TELEVISION, Ltd., 133, Long Acre, London. March 7, 1933, No. 6943. [Class 39 (i).] A support for a valve consists of a rigid member encompassing the envelope about a waist or constriction and the centre of gravity of the valve is arranged to be below the constriction. In the form shown, applied to a valve from which the cap has been removed, twisted wires 8 grip the envelope below the flared portion 6 where the re-entrant tube is sealed to the envelope. The wires 8 are secured to a frame 10 by resilient lashings 12.
Patent GB-1420841-A (GB)
Title: Ground support for crop cutting mechanism of a harvesting machine
IPC: A01D34/22
Filed: 1973-02-13
Abstract: 1420841 Cutter support for harvester G SOHUMAOHER I I and G SCHUMACHER 13 Feb 1973 [21 Feb 1972] 6998/73 Heading A1F A ground support for a crop cutting machine has attached to the machine cutter finger an arm 1 which carries at its front end an adjustable and detachable assembly of a strawraising tube 14 and a shoe 9. The vertical stiffness of the arm cross-section increases towards the front so that bending during ground irregularity occurs mainly at the rear. The variation in stiffness is achieved by variable cross-section and/or by providing a 90 twist part way along the length of the arm. Other embodiments show shoes which are non-adjustable Fig. 1 (not shown) or have long soles extending beneath the cutter fingers with an additional flexible support 11 at the rear Fig. 3 (not shown). The straw raising tube 14 may be omitted, Fig. 2 (not shown).
Patent GB-492098-A (GB)
Title: Improvements in or relating to sound radiating systems
IPC: H04R1/40
Filed: 1937-03-10
Abstract: 492,098. Sound-reproducing systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. March 10, 1937, No. 7063. Convention date, March 10, 1936. [Class 40 (iv)] A sound-radiating system comprises a number of loud-speakers having direct-radiating diaphragms and arranged substantially in ring formation. As shown in Figs. 1a., 1c., the individual loud-speakers 4 are mounted with their diaphragms 5 opposite holes 3 in a frusto conical iron baffle 2 carried by a pedestal stand 1 and provided with top and bottom walls 6, 7 which may be apertured. The loud-speakers may be mounted so that their relative spacing can be varied and so that their axes can be adjusted upwardly or downwardly. In a modified arrangement, Figs. 2a, 2b (not shown), the loud-speakers are arranged in two groups, one above the other, the loud-speakers of one group being positioned circumferentially between those of the other group. More than two groups of loud-speakers may be employed and the baffle or baffles may be polygonal. The diameter of the diaphragms is preferably small compared with the wave-length of the middle frequency of the frequency band to be radiated and the power supplied to each loudspeaker is preferably of the order of 2 watts. Specification 479,549 is referred to.
Patent GB-750998-A (GB)
Title: Improvements in or relating to the making of transistors
IPC: C30B15/20
Filed: 1954-03-11
Abstract: 750,998. Semi-conductor devices. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. March 11, 1954 [March 20, 1953], No. 7076/54. Class 37. Method of making a transistor comprises the steps of forming by crystal growth method a body of alternating layers of semi-conductor of the same basic material but of opposite conductivity types, dividing it by cuts. parallel to the layers into two layer units, grinding down one of the layers to a certain thickness and fusing to and alloying with part only of the ground layer conducting material containing an element to alter the conductivity type of the layer. Slices each containing a PN junction, suitable for the collector junction of a transistor, are cut from a monocrystalline body comprising alternate N- and P-type regions of circa 1# cm. conductivity and placed P layer down on a grinding plate charged with e.g. SiC and ground to 0.076 thick and afterwards etched. Several methods of determining the layer thickness during grinding are described. To the major part of the etched P-type surface 4 is fused a contact 3 containing a donor activator, e.g. Bi-Sb solder, which is then heated to diffuse donor material into the P-type material to form a high-conductivity N-type surface layer which forms the emitter of the NPN junction transistor thus formed. To another part of the P-type layer which forms the base electrode a connection 7 is fused by means of a solder containing acceptor activators (e.g. Group III elements, Zn or Cu) but free from donors to make a good ohmic connection thereto and leads 5, 6 respectively are soldered to the contact 3 and N layer 1. The basic semi-conductor material may be Ge, Si or compounds of the type, e.g. InSb formed by combination of a Group III element (i.e. Al, Ga, In, Tl) and a Group V element (i.e. P, As, Sb, Bi). The monocrystalline body is formed by seed crystal growth from a melt of e.g. Ge or Si the composition of which is altered at short intervals by small additions of donor and acceptor activators respectively, e.g. Sb and Ga. The melt is well stirred by rotation and axial vibration of the seed holder. PNP junction transistors are formed in an analogous way by grinding and etching the N zone and forming an ohmic contact and P zone thereon by fusion thereto of materials containing donor and acceptor impurity respectively.
Patent GB-1167813-A (GB)
Title: Dental Hand-Held Appliance for Dispensing Compressed Air.
IPC: A61C1/08
Filed: 1968-02-13
Abstract: 1,167,813. Switching systems for consuming devices. SIEMENS A.G. 13 Feb., 1968 [14 Feb., 1967], No. 7112/68. Heading H2H. A dental hand-held appliance for dispensing heated compressed air includes a switch which operates after a preset time to reduce the power in a heating element. A transformer 1 has two secondary windings 2, 3 connected, in series, and when the appliance is switched on to deliver air, a switch 7 is also automatically closed so that a heating coil 8 is supplied from connections 5, 6 across both the secondaries. A further heating coil 10 is connected in parallel with the coil 8, and this heats a bimetallic switch 9 which, after a controlled time, moves a contact 11 to a position 13 whereby the heating coil 8 is connected only across the secondary winding 2. When the apparatus is switched off, the contact 11 will not return immediately to its initial position, so that switching the appliance on again after only a short time will result in heating only at the lower power.
Patent GB-724209-A (GB)
Title: Improvements relating to electronic calculating apparatus
Inventor: CHURCHILL JOHN LESLIE WESTON
IPC: G06F7/50
Filed: 1952-03-19
Abstract: 724,209. Multistable state circuits. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd. March 19, 1953 [March 19, 1952], No. 7122/52. Class 40 (6). [Also in Group XIX] A multistable state circuit used for carry-over between multicathode counting tubes operable both additively and subtractively, comprises a plurality of tubes V1 ... V3 with a common cathode load R4 and an RC arrangement in each anode circuit. Triggering of any tube raises the common cathode potential and hence extinguishes any other tube which is conducting at that time. Outputs from the anodes of tubes V2 and V3 lead to the transfer electrodes of the multicathode tube of the next higher stage and, in accordance with the order in which the output pulses occur, perform a positive or negative carry-over as the case may be.
Patent GB-1473812-A (GB)
Title: Water-insoluble azamethine compounds process for their  manufacture and their use as dyeing agents
IPC: C07C67/00
Filed: 1975-02-20
Abstract: Condensation of 2-hydroxy-3-arylamido-1-naphthaldehydes, which can be substituted in the naphthol nucleus by a chlorine or bromine atom, with ammonia, an aromatic amine of the benzene or naphthalene series or a heterocyclic amine results in azamethine compounds which are suitable as colouring agents, especially for the pigmenting of printing pastes, high molecular weight plastic compositions or surface coatings.
Patent GB-1107931-A (GB)
Title: Oven control systems
Inventor: HENSON THOMAS LESLIE
IPC: A21B1/40
Filed: 1966-02-18
Abstract: 1,107,931. Automatic control of cooking ovens. BAKER PERKINS Ltd. Feb. 20, 1967 [Feb. 18, 1966], No.7196/66. Addition to 1, 058, 421. Heading G3R.  A control system for an oven comprises a modification of the control systems disclosed in Specification 1, 058, 421, the modification consisting in the use of a means for sensing the moisture content of the product emerging from the oven whereby to control the operation of the oven in lieu of a means for sensing the colour of the product emerging from the oven. If desired the control system may include both the moisture content and colour sensing means. The control system for an oven 1 includes a computor 4 which receives signals from a capacitive type sensing means 5 placed at the exit of the oven 1 and a similar sensing means 6 at the entrance thereof for sensing the moisture content of a swiss roll batter at these points, from an indicator 8 measuring the humidity inside the oven, from a photoelectric cell 7 sensing the colour of the batter and a means 28 for sensing the absence of batter emerging from the oven. Thermocouples 14 are also placed in the oven to detect the temperature at different points thereof. The system is operative to control the flow of gas to the burners 9 in the oven, the humidity in the oven, the speed of the batter through the oven and the amount and mixture of the batter fed to the oven. The degree of turbulence inside the oven is also controlled.
Patent GB-567429-A (GB)
Title: An improved machine for screw threading nuts or tubes by tapping
IPC: B23G1/20
Filed: 1943-05-10
Abstract: 567,429. Tapping nuts. ROBERTS E. H. May 10, 1943, No. 7371. [Class 83 (iii)] A machine for tapping nuts &c. has a screwthreaded spindle carrying the tap and provided at its upper end with a perforated plate 8 driven by pins 7 on a corresponding plate on the spindle of the electric motor 2. Gearing 13 drives a gear 9 at a reduced speed, the boss of the wheel 9 having a squared thread screw engaging the threads on the spindle. A plate mounted in the spindle between ball thrust bearings carries two rods projecting vertically upwards, one of which passes through a fixed guide, to prevent the plate from rotating, and carries an adjustable stop screw 28 that engages the arm 29 of a mercury switch when the required depth has been tapped; the tap is then unscrewed and when sufficiently clear of the work the other rod 26 engages a stop switch 31, in the circuit of reverse drive leads only, thus bringing the spindle to rest. After the work in the holder 3 has been changed, the machine is restarted by raising the switch arm 29, the switch 31 being reset by a spring. A boss is secured to the shank of the tap and this carries two plates apertured to engage two pins projecting from a corresponding member secured to the spindle, the parts being secured by nuts on the ends of the pins. The parts are supported by a column 19 and a number of these columns are mounted in circular formation in discs 51, 52 carried by a central hollow column 36 rotating on a roller thrust bearing 49 and in a journal bearing 50. The drive is preferably by electric motor (not shown) and is at such a speed that an operator stationed at one spot is able to change the work and restart the spindle during the interval required by the spindle to pass his station. A hopper 46 secured to the upper part of the column surrounds its funnel end to which cutting lubricant is delivered by a pipe 37 leading from a pump (not shown) supplied from a sump 42 by a pipe 43. A fixed valve 41 in the column supplies a series of ports connected by pipes 39 passing in part down the column and leading to delivery nozzles 40, the valve being so set that only the spindles that are tapping receive lubricant. Any overflow from the funnel enters the column by holes 47 and escapes at 48 to the sump together with any leakage past the valve 41. Current to the motors is supplied through slip rings 55. Lubricant draining from the work is collected at 46 and passed to the sump at 45.