baber/WOPTO huggingface dataset:
Patent GB-423477-A (GB)
Title: Apparatus for determining the value of the braking action of the brakes of automobiles
IPC: G01L5/28
Filed: 1934-05-16
Abstract: 423,477. Testing vehicle brakes dynamometrically. SALLE, M., 65, Rue Jacques Dulud, Neuilly-sur-Seine, France. May 16, 1934, Nos. 14767 and 14768. Convention dates, Sept. 4, 1933 and April 3, 1934. [Class 106 (ii)] Apparatus for determining the torque applied to a motor-vehicle wheel in order to overcome the brake pressure comprises a torque indicator carried by a hand crank 13 which drives a track 14 having inclined sections and engaging the said wheel. The crank 13 is fitted loose on the shaft 12 which carries a crank-arm 15 adapted to be engaged by either of a pair of levers 16 turning about pivots 17 in the hand crank 13 and spaced apart by a spring 18. When the crank 13 is turned, one of the levers 16 acts by its short arm on the crank-arm 15, and turns about its pivot 17, thus compressing the spring 18 which presses against the other lever 16, which in turn presses against a stop 19. The compression of the spring 18 necessary before the crank-arm 15 yields is indicated by the movement of a graduated slide rod 20 operated by the lever 16, another rod 20 being actuated by the other lever 16. The track 14 driven by the crank 13 may be an endless one arranged in triangular form as shown in Fig. 1, or it may comprise drums driven by gears and an endless chain. In a modification, Fig. 7, the pivoted levers 16 carried by the crank 13 are connected to the crank-arm 15 by a cross arm 34, and at their other ends bear on pivoted toothed sectors 24<a>, 24b driving a pair of pointers turning in front of a dial with two scales. Extensions 31<a>, 31b are used to re-set the pointers after each measurement. By the provision of a spring 28 and friction washers 29<a>, 29<b>, the pointers 27<a>, 27b are made to indicate the maximum resistance offered.
Patent GB-1459943-A (GB)
Title: Heterocyclic esters of alkylphenyl benzopyrans
IPC: C07D311/80
Filed: 1974-04-03
Abstract: 1459943 Esters of dibenzopyranols and cyclopentabenzopyranols ABBOTT LABORATORIES 3 April 1974 [5 April 1973 13 Feb 1974] 14853/74 Heading C2C The invention comprises compounds of formulµ and their pharmaceutically acceptable salts, wherein n is 1 or 2, R and R 1  are each H or C 1-6  alkyl, R 2  is C 1-6  alkyl, Y is C 1-10  alkylene, R 4 , R 5  and R 6  are each H, halogen, CF 3  or C 1-6  alkyl, and R 3  is Q-C 2-9 -alkanoyl where Q is an N-attached saturated heterocyclyl radical as defined in the Specification. These compounds are prepared by ester-formation, by reacting together in the presence of dicyclohexylcarbodiimide, the corresponding phenol and carboxylic acid R 3 OH. Therapeutic compositions for oral, parenteral or rectal administration comprise the above compounds, which are analgesics and mild tranquilizers.
Patent GB-325756-A (GB)
Title: Improvements relating to spraying nozzles or atomizers
IPC: F23D11/24
Filed: 1929-05-13
Abstract: 325,756. Thompson, H. A., and Swinney Bros., Ltd. May 13, 1929. Spray burners.-In a liquidfuel burner of the kind comprising a tubular member 26, having a jet 14 formed in its outer closed end, a plug 17 screwed into the chamber 26, forming an annular chamber 23 communicating with the jet by one or more tangential passages 24 and with the fuel-supply pipe by passages 25 in the plug; the passages 25 are arranged slantingly in a circumferential direction on the outer surface of the plug, the jet 16 has outer and inner ends of concave form and an oil-tight joint is formed between the member 26 and supply pipe 13.
Patent GB-453794-A (GB)
Title: Improvements in and relating to combination plant for grinding, mixing, and finishing paint and other materials
IPC: B02C4/22
Filed: 1935-05-22
Abstract: 453,794. Roller and roller-and-breast mills. COX, H. E., 131, City Road, Bristol. May 22, 1935, No. 14879. [Class 59] A mill comprises a roll and breast bar, a second roll for co-operation with the first roll, and a mixer or the like adapted to deliver material directly to the mill, the material from the mixer being processed between the two rolls, or by the breast bar and its co-operating roll or by both rolls and one roll and its breast bar. As shown, a roller 3, breast 6 and hopper 5 has superimposed thereon another roller 4 adjustable with respect to roller 3 and side standards 20 attached to the mill framing supports a mixing apparatus 23 which delivers into a hopper 16 supplying liquid to the nip of the rollers 3, 4. A swivelling shoot on the mixer may discharge the material to an extra grinder of two or three rolls, where the material is ground before being scraped off into hopper 16. The roll 4 and mixer 23 may be added separately to or may be combined integrally with the mill. The shaft 28 which drives the mill may also drive an edge-runner which supplies the mixer 23. When the mill is to be used as a roller-and-breast mill the roll 4 is raised clear of the roll 3 and the gates 17 and 19 of the hoppers 16, 5 raised so that a film of material is carried bv the roller 3 to the breast bar. When the mill is used as a roller mill the gate 19 and breast bar 6 are withdrawn from the roll 3, the material from the hopper 16 being crushed by the rolls and discharged by a scraper 8. Both rolls and breast bar may be used in combination. Specifications 453,617 and 456,160 are referred to.
Patent GB-1220102-A (GB)
Title: Process for the production of alkali-metal aluminium organometallic complexes
Inventor: ZEIGLER KARL
IPC: C07F5/06
Filed: 1968-03-28
Abstract: 1,220,102. Alkali metal aluminium organo metallic complexes. K. ZIEGLER. 28 March, 1968 [9 April, 1967], No. 14882/68 Heading C2J. Compounds of the type MAlR x R<SP>11</SP>(OR<SP>1</SP>) y  in which M is Na or K, R is an alkyl radical of C 1-10 , R<SP>11</SP> is alkyl radical of C 1-12 , R<SP>1</SP> is an alkyl or cycloalkyl radical; x = 0, 1, 2; y = 1, 2, 3 and x + y = 3 are made by reating at a temperature below 70‹ C. an amalgam which is liquid at the process temperature and which has a Na or K content of at least 30% wt., an alkyl halide of formula R<SP>11</SP>X and an organoaluminium compound of formula Al(OR<SP>1</SP>) 3 , AlR(OR<SP>1</SP>) 2  or AlR 2 OR<SP>1</SP>. The halogen X is preferably Cl and the radical R<SP>1</SP> is suitably C 1-10 . The process may be carried out in the presence of an organic solvent e.g. tetrahydrofuran.
Patent GB-807066-A (GB)
Title: Improvements in or relating to grinding or polishing machines
IPC: B24B21/02
Filed: 1954-05-21
Abstract: 807,066. Confining dust generated by an abrasive belt. BAYLOR, H. May 23, 1955 [May 21, 1954], No. 14920/54. Class 8(2). [Also in Group XXIII]. A grinding or polishing machine (see Group XXIII) has an abrasive belt 28 passing around a pulley 26 driven by a motor 27, a tensioning and tracking pulley 25, and a pulley 24 which supports it where it engages a workpiece mounted between headstock and tailstock on a table 5 slidable on a stand 7, the belt 28 is enclosed, except where it passes around the pulley 24, by a casing 37 connected at 38 to a dust extractor, and fresh air is delivered to the grinding point through the hollow stand 7 gy a fan 39 associated with the motor 27.
Patent GB-476170-A (GB)
Title: Improvements in rove stop mechanism for spinning, twisting and like machines used inthe preparation of fibrous substances
IPC: D01H13/18
Filed: 1936-05-28
Abstract: 476,170. Rove-stop mechanism for spinning &c. machines. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd., BELL, W. M., and ANDERSON, jun., J. K. May 28, 1936, No. 15051. [Class 120 (ii)] In spinning and like machines a detector lever 2 normally supports a rod 3 which engages an arm 4a of a clutch-member 4 pivoted at 4c on a member 7 which loosely spans the roller shaft 6. The clutch-member 4 is provided with teeth 4b, which, when the arm 4a is released by the dropping of the rod 3 upon the movement of the detector 2 when the thread breaks, engage the flutings of the roller 5 so that the member 7 is rotated to engage a corresponding member 8 on the shaft of the roller 10 by means of a cam 7a and separate the rollers and, at the same time, to nip the roving between a projection 4d on the clutch member 4 and a recess 8b in an arm of the member 8.
Patent GB-1248126-A (GB)
Title: Conveyor apparatus
Inventor: WEBBER GEOFFREY TERENCE
IPC: B65G47/26
Filed: 1969-03-21
Abstract: 1,248,126. Endless conveyers. STRACHAN & HENSHAW Ltd. 19 June, 1970 [21 March, 1969], No. 15090/69. Heading B8A. Articles 4 conveyed by a pair of spaced endless belts 1, 2 become tilted when in abutment with a stop 8 and thereby engage a surface 5, situated between the belts and at a level just below that of the belts, to reduce the loading on the belts. A counting device (not shown) may control the stop to release the latter after a predetermined number of articles have been stopped.
Patent GB-574873-A (GB)
Title: Propulsion of aircraft
IPC: F02K3/12
Filed: 1942-10-28
Abstract: 574,873. Propelling aeroplanes. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., SIR W. G., and LLOYD, J. Oct. 28, 1942, No. 15112. [Class 4J An aeroplane is normally driven by a tractor propeller 5 coupled to a reciprocating internalcombustion engine 4 mounted in a nacelle 3 on a wing, but when extra power is required, a turbine jet propulsion unit 6, in line with the propeller shaft, is started. The starting is effected by a shaft 9 coupled to the main engine through a clutch 11 or by means of an additional turbine 17 driven by the main engine exhaust. Air for the internal-combustion turbine of the jet propulsion unit is drawn in through conduits 7 arranged in the wing on each side of the nacelle 3 or, as shown in Fig. 2, above it. Where an exhaust turbine 17 is used for starting the jet propulsion unit, the exhaust gases which normally escape at 14 are deflected by a valve 15 along a conduit 16 to the turbine 17 which drives the shaft 9 through reduction gear and a free-wheel clutch. Alternatively, the exhaust gases may be directed to the turbine of the jet propulsion unit to start it.
Patent GB-110039-A (GB)
Title: Electric Radiant Heat Fire.
Inventor: ELLIS HARRY STEPHENSON
IPC: F24C7/06
Filed: 1916-10-25
Abstract: 110,039. Ellis, H. S., and Petersen, J. C. Oct. 25, 1916. Electric radiators and stoves. -Reflectors A are arranged in combination with horizontal heating units B so that the device serves both as a stove and radiator. Below the heaters B is a deflector C which is removable for grilling, toasting &c. purposes, the utensils being placed in a receptacle D.
Patent GB-561091-A (GB)
Title: Improvements relating to radio receivers
IPC: H04L15/26
Filed: 1942-10-30
Abstract: 561,091. Wireless signalling STANDARD TELEPHONES & CABLES, Ltd., HOLLAND, J. D., and ROBINSON, D. D. Oct. 30, 1942, No. 15264. Addition to 556,319. [Class 40 (v)] A testing arrangement for a radio alarm system comprises an aerial, a radio receiver adapted to be tuned to the alarm wave-length, means for switching the aerial from the receiver to a variable inductance to form therewith a circuit resonant at the alarm wave-length, means to excite the resonant circuit to cause it to generate waves to be detected by the receiver, and means for changing the sensitivity of the receiver to enable it to receive satisfactorily the generated waves. An aerial A is connected by a switch S in the ON position through contacts of a change-over relay RY to the input circuit of a receiver. RR tunable by condenser C3 to the alarm wave-length. The other contact of relay RY is connected to a variable inductance L1 which, with the inherent capacity C of the aerial, forms a circuit resonant at the alarm wave-length. Coupled to inductance L1 is a fixed inductance L2 in series with a condenser C4 and the make-and-break contacts of a buzzer B having a spark suppressing circuit R6 C6. Depression of a key K causes energization of buzzer B and relay RY from the low tension source LT +, LT -, to connect the aerial to inductance L1 to form a resonant circuit which is excited by the buzzer. The generated waves are fed by a condenser C1 to the input of the receiver for detection. In addition, operation of key K substitutes R1 for R2, thus changing the bias of the valve and reducing its sensitivity to an appropriate degree. Further, in the transitory open position of key K, high resistance R4 puts a blocking bias on the valve to give a momentary no signal period to ensure release of relays in the later stages of he receiver not shown.
Patent GB-1327174-A (GB)
Title: Toys
IPC: A63F9/00
Filed: 1972-04-04
Abstract: 1327174 Educational appliances ASCO SA 4 April 1972 [2 April 1971] 15415/72 Heading G5G [Also in Division A6] A toy for teaching geometry consists of a number of regular hollow tetrahedrons 1, Fig. 1, each having a triangular hole 4 in each face with its sides parallel to the sides of the triangular face, and connecting members such as shown in Figs. 4-6 to be inserted in the holes so as to couple the tetrahedrons together. Partcircular notches 10, Figs. 1, 4, are formed in each side of the triangular holes 4, and grooves 13 inside each side of the holes. The connecting members, e.g. the member 8, Fig. 4, have resilient lips 14 to snap into the grooves 13, and a circular projection 11 to lodge in the partcircular notches 10. The connecting member 15, Fig. 5, may couple two tetrahedrons with triangular faces aligned, ribs 14<SP>1</SP> lodging in the grooves 13 and part-circular projections 11<SP>1</SP> in the notches 10. The connecting member 16, Fig. 6, has ring-like lips 11, 14 at its ends to engage in the grooves 13, &c. Figs. 2, 7, 8 (not shown), illustrate assemblies of the tetrahedra which may be used as the starting points for extension to solve problems in three-dimensional geometry. Fig. 3 (not shown) illustrates a tetrahedron held apex down in a triangular hole in a tripod.
Patent GB-743273-A (GB)
Title: Locking device for adjusting knobs and the like on photographic cameras
IPC: G03B9/08
Filed: 1953-06-05
Abstract: 743,273. Locking rotary members. HEIDECKE', R., and FRANKE, H., [trading as FRANKE & HEIDECKE FABRIK PHOTOGR. PRAZISIONS-APPARATE]. June 5, 1953 [June 9, 1952], No. 15553/53. Class 80(3) A locking device for an adjusting knob 8 of a photographic camera comprises a radially movable slide 12 on a support 5 which normally projects beyond the periphery of the knob 8 under pressure of a spring 4 and actuates a cross slide 16 through a pin and inclined slot connection 17, 18 into frictional contact at 19 with an internal cylindrical surface 20 of the knob. The slide 12 can be engaged and pressed in to release the locking action simultaneously with the operation of the knob. In a modified arrangement the slide 12 carries locking teeth which engage directly with teeth on a wheel secured to the under side of the knob.
Patent GB-832386-A (GB)
Title: Improvements in rotary displacement machines
IPC: F04C18/16
Filed: 1957-05-16
Abstract: 832,386. Rotary compressors or motors. SVENSKA ROTOR MASKINER A.B. May 16, 1957 [May 17, 1956], No. 15557/57. Class 110(2). A compressor or motor, of the meshing- screw type, comprising at least two co-operating rotors 20, 22, each having at least three helical intermeshing lands and grooves, has liquid supplied over the working surfaces for cooling, sealing and lubricating purposes. The liquid, sucked in or supplied under pressure, may be oil or water and this is separated out from the gas under delivery pressure. In Fig. 1 the liquid is sprayed into the working chamber through jets 50, 52, the easing 42 being provided with inlet and outlet ports 44, 46 for the gas being compressed. The rotors may be of different materials, for instance one of steel and the other of bronze or a plastic material. In Fig. 5 the interiors of the rotors contain liquid which is forced outwards through duets 80 in the rotor recesses, Fig. 7 (not shown). In another arrangement, Figs. 9, 10 (not shown), the rotor ends are provided with annular sealing ribs over which liquid is sprayed through openings 104. The liquid supplied under pressure at the rotor ends tends to balance forces which would otherwise force the rotors axially towards the low pressure end of the casing. In Fig. 15 a compressor 112 is driven directly by an electric motor 114 and compressed air from an outlet 46 is forced through a separator 116 and discharged at 118. Oil is drawn from a supply 120 by means of two pumps 122, 124 and passes through pipes 126, 128, each provided with a cooler 130, 132, to the compressor. Separated oil from the compressor and the separator, passes back to the supply 120.
Patent GB-424762-A (GB)
Title: Improvements in or relating to the heat treatment of metal strip
IPC: H05B6/06
Filed: 1933-05-30
Abstract: 424,762. Hardening, tempering, or annealing metal strip. HEIDE, H. C., 2, Broad Street Buildings, Liverpool Street, London.-(Stargardter, A. R. ; 15, West 1st Street, Brookline, Massachusetts, U.S.A.) May 30, 1933, No. 15596. [Class 72] [See also Group XXXVI] Ferrous metal strip fed at constant speed through heating, quenching or cooling zones to harden, temper or anneal it uniformly, is tested by a balanced circuit responsive to the relative magnetic permeabilities of the moving strip and of a standard, the current in the circuit being utilized through relays to raise or lower the temperature of the heating zone as required. The strip A, Fig. 1, is unwonnd from drum 13 on to drum 14 by rollers 15, 16 driven from the electromotor 22 through reducing gear, and passes through an electric induction furnace 2, water cooled quenching plates 23, 24 for hardening, and a second induction furnace 21 for tempering. The hardened strip after leaving the quenching plates 23, 24 passes through a solenoid 26, also shown in the wiring diagram, Fig. 9, by which its magnetic permeability is compared with that of a standard piece of strip B placed in a similar solenoid 27, any differences being utilized to regulate the temperature of the furnace 2. The primary windings of the solenoids are in series and are supplied with A.C. from the mains e through a switch d, the secondary windings 30, 31, 32 being opposed and connected to the moving coil 33 of an A.C. galvanometer having a field coil 36 connected with an A.C. supply line 38. The moving coil 33 supports a mirror 41, Figs. 5 and 6, by which light from a source 42 may be directed through lenses 60, 61 on to a light sensitive element 45 when the current in the opposed windings 31, 32 flows in one direction, the light being intercepted by the wall 401 when the mirror is swung oppositely by current flowing in the other direction. When light strikes the element 45, the circuit 5 of the induction furnace 2 is closed by a switch 48 operated by a coil 58 against a spring 59, the operating relays including an amplifying valve 47, a transformer 49, and a switch 54 operated by a coil 55. The temperature of the annealing furnace 21 is similarly varied as required by solenoids 26<1>, 27<1> which compare the permeabilities of the strip A and the standard B <1>.
Patent GB-636178-A (GB)
Title: Improvements in or relating to domestic step-ladders
IPC: E06C1/16
Filed: 1946-05-23
Abstract: 636,178. Step ladders. FREEMAN, A. May 23, 1946, No. 15641. [Class 20 (ii)] A tie member for limiting the opening movement of a step ladder (in particular, that described in Specification 636,173), consists of a length of steel rod 1 the rear end 2 of which is bent at right-angles and inserted in a hole 3 formed in the tubular bottom cross-member 4 of the hinged back frame of the ladder, whilst the forward end is formed with a hook 6 for engagement with one of the steps 8. These are preferably of the non-slip type described in Specification 636,176, the V-shaped supporting member 9 of one of them being modified to form, at the rear end of the step, a loop 10 in which the tie member 1 is free to slide when the ladder is open or closed.
Patent GB-451884-A (GB)
Title: Improvements in surgical operating tables
IPC: A61G13/02
Filed: 1935-05-29
Abstract: 451,884. Surgical operating - tables. SCHRANZ, R., 28A, Devonshire Street, Portland Place, London. May 29, 1935, No. 15644. [Class 52 (iii)] An operating-table tiltable longitudinally in sections or as a whole comprises a pelvissupporting part 2, Fig. 2, and a back support 1 pivoted together and to the supporting-structure 3 at an axis 4. The gear-box 8 moves along screws 9, 10 pivoted to the axis 4 and to the part 3 respectively ; as it moves vertically along the screw 9, the links 14 move the parts 1, 2 angularly ; as it moves along the screw 10 it tilts the whole table. These movements are effected by handles 18, 17, Fig. 1, mounted on a spindle 16 and a sleeve 15 respectively ; these parts 16, 15 carry worm-wheels 12, 13 which rotate nuts 11 on the screws 9, 10. The parts 1, 2 are covered by a soft rubber mat 5.
Patent GB-920637-A (GB)
Title: Improvements in or relating to light-sensitive colloid silver halide photographic elements
Inventor: WILLEMS JOZEF FRANS
IPC: C08L67/00
Filed: 1959-05-07
Abstract: Polymeric compounds are obtained by reacting polyoxyalkylene compounds with aliphatic aldehydes, with dicarboxylic acids or their anhydrides, or with diisocyanates.  Examples are given of the reaction of polyethylene glycols of average molecular weight 300 to 1,000, with paraformaldehyde, sebacic acid, diglycollic acid, maleic anhydride, phthalic anhydride, pyromellitic dianhydride or hexamethylene diisocyanate.  The reaction with paraformaldehyde takes place in toluene and a few drops of concentrated sulphuric acid. Some of the reactions are carried out under nitrogen.  Specifications 548,019, 592,676, 600,058, 748,745, 748,750 and Belgian Specifications 571,916 and 571,917 are referred to.
Patent GB-160105-A (GB)
Title: Improvements in lubricating device
IPC: F16N7/04
Filed: 1920-06-10
Abstract: 160,105. Thornton, A. A., (Justrite Manufacturing Co.). June 10, 1920. Capillary-action and gravity-feed lubricators; lubricant c o n v e y e d b y mechanical means. - An oil-cup for motorvehicles &c. comprises an inverted c u p - member 12, and a flanged base 14 fitting in the part 12 and secured to a tube 18 fitting on a spindle 7 of a nipple member 6. The spindle 7 has an axial channel 8 terminating in lateral channels '9, above which it is of slightly reduced diameter to form a capillary space s, to regulate the flow of lubricant. The spindle is further reduced to form an oil space g. The upper end of the tube is threaded and bifurcated for receiving the spindle end, and the slots between the bifurcations are enlarged to form oil openings 20 opposite the oil space g. A sleeve 19 is reciprocable on the tube 18, the end of the sleeve being cut away to form openings 22 into an oil space 21. To fill, the cup is detached from the spindle 7, inverted, and filled through the tube 18. In this position the sleeve 19 has moved to uncover air vents 17 in the tube. The cup is now righted, the sleeve moving to cover the vents 17 to prevent escape of oil, and the cup is applied to the spindle 7, the oil in the tube being - displaced through the channels 9, 8 to the bearing &c. to which the nipple is applied. Oil splashed through the openings 20 is fed to the bearing through the capillary space s which regulates the flow. The sleeve 19, which is reciprocated by jolting &c., assists in raising oil to the openings 20.
Patent GB-553992-A (GB)
Title: Folding box
IPC: B65D5/24
Filed: 1941-12-05
Abstract: 553,992. Folding box. LANDOLT, E. Dec. 5, 1941, No. 15732. [Class 18] A folding box for articles of which the satisfactory appearance is liable to be deleteriously affected by contact with unsuitable packing, e.g. fruit or cream-coated cakes, is made from the blank shown of which the centre panel 2 is rectangular and the side panels 5 are shaped and slotted to form a domed top secured by tongue-and-slot joints. A connecting panel 9 between each pair of panels 5 is creased along a line 12 which does not coincide with the axis of symmetry of the panel so that when folded along this line it automatically bears against one side of the box. The angle between the boundaries 11 of panels 9 may in some cases be less than 90 degrees.