baber/WOPTO huggingface dataset:
Patent GB-1476211-A (GB)
Title: Vehicle suspension systems
IPC: B60G17/033
Filed: 1975-02-26
Abstract: 1476211 Anti-roll suspension systems GIRLING Ltd 26 Feb 1975 [3 April 1974 7 Nov 1974] 14858/74 and 48250/74 Heading B7D In a vehicle suspension system arranged to resist rolling of the sprung part of a vehicle, actuator units 1 for connection one on either side of the vehicle between sprung and unsprung parts comprise cylinders 2, 2A divided into upper and lower chambers 5, 5A and 6, 6A by pistons 3, 3A connected to piston-rods 4, 4A, and the upper chamber 5, 5A of each unit is connected to the lower chamber 6, 6A of the opposite unit through a respective control device 7, 7A which comprises a damping valve 9, 9A acting to restrict flow between the units and a piston 12, 12A or flexible diaphragm through which the fluid in the units acts on a compressed gas chamber 13, 13A. A levelling valve 20 may be connected to the control devices 7, 7A to vary the volume of fluid in the system in response to non-transient changes in vehicle loading.
Patent GB-544309-A (GB)
Title: Improvements in adjustable v-groove pulleys
IPC: F16H55/56
Filed: 1940-10-04
Abstract: 544,309. Pulleys for variable-speed gearing. MANNING, MAXWELL & MOORE, Inc. Oct 4, 1940, No. 14867. Convention date, Oct. 5, 1939. [Class 80 (ii)] An adjustable V-groove pulley comprises two discs 4, 9 each supporting a conical truncated shell 5, 10 the shells' being sheared along a spiral line 15 and lugs 17 being welded to the inner surface to act as supports for the convolutions which, however, are free to move outwardly. The disc 4 is secured to the shaft 1 by a pin 7, but the disc 9 is adjustable along the shaft and is preferably screw-threaded thereon as at 14, a locking bolt 13 being provided. The width of the convolutions is preferably equal to the length of the sloping side of the belt B. The free end 16 of each innermost convolution is preferably sprung out slightly. To increase the effective diameter of the pulley the bolt 13 is slackened. The ends 16 are engaged and the disc 9 rotated so as to cause the convolutions on the two cones to thread one into the other. The belt at no time rides on any projecting part of the convolutions.
Patent GB-1082205-A (GB)
Title: Manufacture of herbicidal materials comprising 4,4-bipyridylium diquaternary salts
Inventor: BRAUNHOLTZ JOHN THEODORE
IPC: C07D213/22
Filed: 1963-04-16
Abstract: 4,41-Bipyridylium diquaternary salts (other than halides of the 1,11 - dimethyl - 4,41 - bi - pyridylium ion) are prepared by reacting a 4,41-bipyridyl or a mono-quaternary salt thereof with a quaternizing agent in the presence of a reaction medium consisting principally of water.ALSO:Herbicidal compositions comprise a 4,4\sv-bipyridylium quaternary salt (other than a halide of the 1,1\sv-dimethyl-4-4\sv-bipyridylium ion) and water.  Corrosion inhibitors and surface active agents may also be present.
Patent GB-1447908-A (GB)
Title: Thin-thick waxy maize based starch derivatives for acid and  neutral retort media
IPC: A23L3/00
Filed: 1974-04-04
Abstract: 1447908 Food preparation A E STANLEY MFG CO 4 April 1974 [10 Aug 1973] 14950/74 Addition to 1387282 Heading A2D [Also in Division C3] A hydroxypropylated, epichlorohydrin crosslinked waxy maize starch derivative (see Division-C3) useful as a thickener in sealed container retart media, e.g. in canned pie fillings, soups, sauces, and puddings utilizing hightemperature, short-time sterilization continuous retart equipment or static sterilizers requiring good heat penetration, allows rapid heat penetration while thin to facilitate product sterilization in the sealed container and then thickens rapidly to the desired viscosity. In the Examples the starch derivatives are used to prepare sterilised, canned blueberry pie filling from blueberries and other ingredients, and cherry pie filling from cherry juice, cherries and other ingredients.
Patent GB-1459961-A (GB)
Title: Finger-actuated pump
IPC: G01F11/08
Filed: 1975-04-11
Abstract: 1459961 Reciprocating pumps PITTWAY CORP [trading as SEAQUIST VALVE CO] 11 April 1975 [6 May 1974] 14968/75 Heading F1A A finger-actuated pump for discharging the contents of a container 24 as a spray or jet, comprises a diaphragm 53, Fig. 1, defining a pumping chamber 54 communicating with the container interior via a chamber 70, Fig. 2, with a vane check-valve 88, and with a discharge nozzle 64 via a chamber 72 with a vane check-valve 98, the container being vented to atmosphere via a chamber 68 with a vane check-valve 78. The pump head may have a locking ring (46), Figs. 5 to 8 (not shown), which is rotatable between positions blocking or releasing outlet valve-member 60, indicia being provided to show the setting of the locking ring. The housing may incorporate a hinged member (51), Figs. 9 and 12 (not shown), for depressing diaphragm 53. Mounting portion 18 may be interchanged with others of different height, Figs. 14 and 15 (not shown).
Patent GB-168415-A (GB)
Title: Improvements in and relating to evaporators
IPC: C02F1/04
Filed: 1920-06-02
Abstract: 168,415. Fothergill, A. June 2, 1920. Plates, walls, and the like, securing pipes and tubes to. -Steam coils 5 are secured to steam-inlet chamber 3 and drainage chamber 4 at each side of a vertical door 2 of an evaporator 1, by hollow T-shaped pieces 6b brazed to the ends 5a of the coils and held against the evaporator shell by bolts 7 which pass through the chambers 3, 4. According toone Provisional Specification, hollow coupling- pieces which pass through the steam-inlet ordrainage chambers are secured by studs or nuts. on the outside of the shell and coned sleeves. brazed to the ends of the coils are detachably secured to the coupling pieces.
Patent GB-611208-A (GB)
Title: Improvements in or relating to the preparation of guanidine salts
Filed: 1944-08-08
Abstract: <PICT:0611208/IV(b)/1> Guanidine salts are prepared by heating an aqueous solution of an ammonium salt, cyanamide and free ammonia at a temperature of from 75 DEG  to 180 DEG  C., the amount of free ammonia present being at least sufficient to maintain a pH of 8, the process being characterised in that the ammonium salt is present in the reaction mixture throughout the reaction in an amount in excess of that required to react with the cyanamide present.  All the reagents may be present initially or, alternatively, an aqueous solution of the ammonium salt and free ammonia may be heated to 75 DEG  to 180 DEG  C. and the cyanamide then added, and this may be effected by a cyclic process.  Ordinary pressures may be used, for example, at 75 DEG  to 130 DEG  C. with the addition of free ammonia when necessary to maintain the required pH or reaction may be effected under pressure at, for example, 140 DEG  to 170 DEG  C. Preferably, there is not more than 1/4 mole. of unreacted cyanamide present per molecular equivalent of unreacted ammonium salt.  In a cyclic process, preheated ammonaical liquor containing the ammonium salt from tank 4 and aqueous cyanamide from tank 7 are fed into an autoclave 1, which already contains some of the ammonium salt liquor, at a temperature of preferably 140 DEG  to 170 DEG  C.; the guanidine salt is formed rapidly and the mixture is then passed into a cooler 14 and thence to a filter 20 where the precipitated guanidine salt is removed.  The mother liquor is led to an evaporator 23 and after being concentrated is passed to the tank 4 for reuse.  In place of the autoclave 1, there may be used a long heated pipe through which cyanamide and excess ammoniacal liquor is pumped under such conditions that reaction is complete when the solution has passed through it.  Examples describe the preparation of guanidine nitrate, acetate, phosphate and carbonate by interaction of cyanamide, ammonia and the appropriate ammonium salt.  Other guanidine salts which may be prepared are the sulphate, chloride, sulphamate, phenolate, ammelide, benzoate, succinate, propionate and salicylate. Experiments are described illustrating the preparation of guanidine nitrate: (a) using equimolecular amounts of cyanamide and ammonium salt and free ammonia and (b) using excess ammonium salt but no free ammonia, and the yields are compared with those obtained according to the process of the invention at a number of different temperatures. The Specification as open to inspection under Sect. 91 is not limited to the use of sufficient free ammonia to maintain a pH value of at least 8.  This subject-matter does not appear in the Specification as accepted.
Patent GB-184909-A (GB)
Title: Improvements in beam heads
IPC: B65H75/18
Filed: 1921-05-31
Abstract: 184,909. Mossberg, F., and Mossberg Pressed Steel Corporation. May 31, 1921. Cloth and warp beams. -In heads for beams, on which yarn &c. is wound, and of the kind having a stiffening-plate secured to a main plate 10, the peripheral edge 15 of the auxiliary plate 11 is bent inwardly or flanged to rest against and support the plate 10. Perforated recesses 17 for the reception of rivets &c. are formed in the plate 14, there being a space between the bottom of the recesses and the main plate prior to securing the plates together. A hub 21 passes through both plates and is secured to the beam 24 by a rod 23 and nuts 25. The plate 10 may have radial ribs 12.
Patent GB-577184-A (GB)
Title: Improvements in or relating to couplings for pipes or electric cables
IPC: F16L37/127
Filed: 1943-09-15
Abstract: 577,184. Cable couplings. WIGGINS, I. L. Sept. 15, 1943, No. 15134. Convention date, June 15. [Class 38 (i)] [Also in Group XXVIII] In a quick-release coupling for electric cables of the kind in which dogs 17 pivoted in a socket 10 are adapted to engage a shoulder on the spigot under the action of a spring-urged sleeve 19. The surface 124 on the dog which engages the spigot shoulder is slightly inclined to the direction of movement of the dog so as to provide a wedging action which urges the end of the spigot (not shown) against a resilient washer 15. The dogs are located in slots 24 in the socket and have slots 26 whereby they engage a pivot 27 comprising a wire encircling and lying within a groove of the socket. Shoulders 30 on the dogs are engaged by the sleeve for uncoupling. The coupling may be supported by an external flange on the sleeve whereby uncoupling may be effected by a direct pull on the spigot member. Blocks 85, 90, Fig. 9, of a multiple pin connector are secured in the socket and spigot respectively by snap rings 88 and sealing material 92, a pin 100 secured to the block 90 engaging a hole 102 in the block 85 and carrying a key 101 engaging a slot 103 for relative angular positioning of spigot and socket.
Patent GB-1532811-A (GB)
Title: Braking system for inverter-fed induction motors
IPC: B60L7/22
Filed: 1976-04-06
Abstract: 1532811 Control cf AC motors BRITISH RAILWAYS BOARD 6 April 1976 [14 April 1975] 15224/75 Heading H2J A three phase induction motor 2, fed from an A.C. supply through a D.C. source 1, contactor 5 and inverter 3, is braked by reducing the output of source 1 to zero, opening contactor 5 to cause induction generator operation and closing a contactor 6 to connect the motor to a controlled power-absorbing, unity power factor load 7, whereby real power flows through the load 7 and reactive power through the inverter 3. Thus the inverter rating may be reduced compared with a braking arrangement using a load connected across the D.C. side of the inverter. The load may be a switched resistor chain, a rectifier followed by a controller (e.g. D.C. chopper) connected to a battery to be charged, or a system to feed power back to the A.C. supply. During braking the inverter frequency f is controlled by a feed-back loop 10 responsive to the voltage of the motor or of the D.C. side ofthe inverter to maintain a constant flux density in the motor for producing a desired braking torque, for example maximum torque. To prevent high voltages being applied to the inverter during braking, it is connected to tappings 17, 18, 19 on the motor windings as shown in Fig. 3, the winding terminals 14, 15, 16 being connected to a load in the form of a resistor bank 7 which is progressively reduced, as the motor speed and voltage fall, to maintain the braking torque constant. The tappings 17, 18, 19 may also be used during high speed motoring, the operation for motoring with full winding or tapped winding connections and for braking with trapped winding connections and a tapped, switched-segment resistor 7 being described, Figs. 4(a), (b) and (c) (not shown). Alternatively each winding may comprise two sections connected in series for low speed motoring and in parallel for high speed motoring and braking. Figs. 5(a), (b) and (c) (not shown). Another method is to connect the windings in star for low speed motoring and in mesh for high speed motoring and braking. The loop 10 may be adjusted to obtain a desired braking torque below maximum by varying the constant of proportionality K 1  in the equation f = K 1 V.
Patent GB-1124151-A (GB)
Title: Electric furnace construction
IPC: C21D1/773
Filed: 1966-04-06
Abstract: 1,124,151. Electric resistance furnaces. C. I. HAYES Inc. 6 April, 1966 [15 July, 1965], No. 15257/66. Heading H5H. An electric furnace 10 comprises a housing 12 into which project a plurality of terminals 72 each having a pair of co-operating curved bars between which a flexible non-metallic resistance heater 80 is secured and suspended therefrom, a conductor assembly fixed to the lower ends of the heaters and means 114 for supporting a workpiece in a heating zone defined by the heaters. The bars are arranged in a circle so that the suspended heaters form a cylindrical heating zone. The heaters are of woven graphite material and are mounted in a cylindrical vacuum furnace having a removable top 16 and water cooled walls and ends. The heating zone is enclosed in a cylinder composed of layers of graphite felt insulating material 108.
Patent GB-857638-A (GB)
Title: Improvements in or relating to electromagnetic latching relays
Inventor: GROBLER JOHANNES JACOBUS
IPC: H01H51/08
Filed: 1959-05-05
Abstract: 857,638. Electrically - released switches. STANDARD TELEPHONES & CABLES Ltd. May 5, 1959, No. 15358/59. Class 38 (5). The armature of a latching relay with a contact spring set is released from its latch by a second energization and de-energization of the relay. When the armature 1 is attracted by the coil (not shown) its arm 2 operates a contactspring set (not shown). During this movement a pin 4 on a lever 3, attached to the armature, moves a latch 5 on a second lever 6 pivoted at 7 in a clockwise direction against the bias of a spring 8. At the end of its travel the pin 4 engages the remote face of a detent 9 also secured to the lever 6. On de-energization the return of the armature by the contact-spring set is limited by the engagement of the pin 4 in a notch in the top of the latch 5 and in this position the contacts remain operated. When the coil is again energized the pin 4 moves upward to engage the other side of the detent 9 and on de-energization it engages the near sloping side of the latch 5 to move the lever 6 anti-clockwise against the bias of a spring 10 during the movement of the armature and contacts to the non-operated position. The contact stack may include contact pairs which operate during movement between the energized and latched positions.
Patent GB-559735-A (GB)
Title: Improvements in the manufacture of pyrethrum extracts
IPC: A01N65/12
Filed: 1942-10-31
Abstract: 559,735. Pyretherium extracts. STAFFORD, ALLEN & SONS, Ltd., and WEST, T. F. Oct. 31, 1942, No. 15364. [Class 81 (i)] Pyrethins are extracted from pyrethrum flowers by means of a solvent mixture consisting mainly of light petroleum but containing a proportion of acetone or an equivalent solvent (i.e. a low boiling body having a strong solvent action for pyrothrin, other than an ether), the added solvent being sufficient in amount to ensure rapid extraction of the pyrethrins but not to extract any considerable proportion of resinous bodies insoluble in kerosene. The solvent mixture is used throughout the extraction process. Suitable additions to the light petroleum solvent are acetone, ethylene dichloride, isopropyl alchohol. The extract obtained may be dissolved in kerosene or in glycol ethers. A polyhydric phenol may be added to the kerosene solution as a stabilizer. Specifications 547,927 and 560,694 are referred to.
Patent GB-292065-A (GB)
Title: Improvements in automatic steering systems
IPC: G05D1/02
Filed: 1928-05-25
Abstract: 292,065. Sperry Gyroscope Co., (Assignees of Sperry, E. A.). June 9, 1927, [Convention date]. Steering, balancing, and regulating altitude.- Automatic steering gears for ships according to Specification 209,799 are modified in that means are embodied in or adjacent to the course controller for producing a " mean helm " automatically to correct persistent yaw to one side. In addition to the main contact 2 and contact segments 4, 5, of the controller, there is fixed to the ship other segments 18, 19 co-operating with a roller contact 16 on an extension of the main contact controlling an auxiliary motor 20 which through reducing gear is coupled to one element of a differential gear 21 interposed between followup gear of the rudder and the main controller pinion 15. In a modification, the auxiliary segments are adjustable by worm gearing actuated jointly by the auxiliary motor 20 and the main roller trolly motor.
Patent GB-530313-A (GB)
Title: Improvements relating to brake operating mechanisms
IPC: B60K23/00
Filed: 1939-05-26
Abstract: 530,313. Brake-operating mechanism. PRATT, J. H., MANLEY, G. E., and GIRLING, A. H. G. May 26, 1939, Nos. 15627./39 and 1492/40. [Class 103 (i)] In brake-operating mechanism, in which one set of brakes is hydraulically operated and the other mechanically, the actuating member 6 moving about a fixed pivot 7 has fulcrummed upon it a balancing lever 10 with one arm 12 connected to the hydraulic brake and the other 15' to the mechanical brake, a separate fixed abutment means 16 for the lever 10 being provided so that in the event of failure of either of the brakes the other is permitted to act. In the event of failure of the hydraulic brake the piston 13 contacts with a projection 14a at the closed end of the cylinder 14 and the lever 10 turns about its connection to the rod 12. In a construction having a horizontal balancing lever fulcrummed upon the actuating member two separate fixed abutments are provided for the balancing lever. In two other constructions having the actuating member pivoted about its lower end and a vertical balancing lever fulcrummed between the ends of the actuating member there is a fixed abutment for the upper end of the balancing lever.
Patent GB-658584-A (GB)
Title: Apparatus for glueing veneers together edge to edge
IPC: B27D1/10
Filed: 1949-06-13
Abstract: 658,584. Adhesively connecting veneer sheets edge to edge.. FRIZ. A. June 13, 1949, No. 15627. [Class 145(ii)] The sheets b to be joined edge to edge are fed along the table a on either side of a guide rail c and pass over driven rollers h upon which the sheets b are pressed by freely rotatable rollers i, the planes of which converge towards the outlet of the apparatus tending to bring the adjacent edges of the sheets b into mutual contact. Projecting through a slot d in the table a is a glueing disc e which is fed with adhesive from a disc f and trough g. Since the guide rail c is arranged to be of a greater thickness than the disc e the latter is prevented from applying the adhesive to the sheet edges on the rising part of the disc e but only on its descending part where the sheet edges are firmly pressed into mutual contact by the converging rollers i. The joined sheets b are delivered by a conveyer which together with the rollers h and discs f, e, are driven through chain drives. The convergence of the rollers i is adjustable.
Patent GB-591458-A (GB)
Title: Automatic system for controlling the temperature of a space
IPC: F24D19/10
Filed: 1944-08-16
Abstract: 591,458. Automatic control systems. VAPOR CAR HEATING CO., Inc. Aug. 16, 1944, No. 15634. Convention date, Aug. 9, 1943. [Class 38 (iv)] Temperature.-A thermostat, responsive to a space temperature subject to automatic control by mechanism adjusted at upper and lower temperature limits of a temperature range, has an auxiliary electric heater and means to vary the heating current to change the effective relation between the temperature range and the temperature of the space without change in the range. A mercury column control thermostat 17, Fig. 1, has contacts 29, 30 respectively causing the opening of a relay 18 and the closing of a relay 19. These relays when closed energize a reversible motor 15 in series which increase and decrease respectively the heat applied to the space in which the thermostat 17 is installed. The range of temperature between contacting at 29 and 30 is fixed by the construction of the thermostat but current supplied to a heating winding 27 may be varied to change both effective temperatures equally by adjusting a series resistance 23 or a shunt resistance 21. When relay 18 operates by contact at 29 a resistance 20 is connected in parallel with resistance 21 to increase the heating of coil 27 and when relay 19 is operated by closure .at contact 30 all auxiliary heat is removed by opening of the back contact of this relay and intermittent action of the relays and motor 15 results. Fig. 1 shows a master thermostat 16 also subject to the space temperature. This thermostat has an auxiliary-heater and a contact 25 adapted to place a resistance 22 in shunt with its heater and causes intermittent closure at contact 25. The heating circuits of both thermostats are in series so that the master thermostat adjusts the mercury in the control thermostat except when above contact 30 and below contact 29 while the control thermostat adjusts the mercury in the master thermostat. Fig. 1 shows the motor 15 adjusting a damper 14 determining the relative proportions of cooled and heated air directed into a space. Figs. 2 and 3 (not shown) relate to the application of the invention to the control of a damper regulating the flow of air through a casing surrounding a cooling coil in an oil circulating system associated with an engine crank case, the master and control thermostats being responsive to the temperature in the circulating pipe. The higher temperatures involved necessitate higher currents in the auxiliary thermostat heaters and a relay is interposed in the heater circuits to present destructive sparking at the upper contacts of the thermostats. Fig. 4 (not shown) illustrates a modification of the system of Fig. 1 having no master thermostat.
Patent GB-687957-A (GB)
Title: Improvements in or relating to utensils, such as saucepans or porringers, for culinary purposes
IPC: A47J27/60
Filed: 1950-06-26
Abstract: 687,957. Jacketed cooking utensils. LEWIS, F. I. May 1, 1951 [June 26, 1950], No. 15860/50. Class 66 A partition 8 extending above the rim of a saucepan 1 &c. divides it into an inner compartment 12 for water and an outer compartment 13 for milk &c. which can thus be heated without burning, and poured off at 2.