baber/WOPTO huggingface dataset:
Patent GB-843210-A (GB)
Title: Compositions comprising polyvinylchloride blended with linear chlorinated polyethylene
IPC: C08L23/28
Filed: 1957-11-13
Abstract: Compositions comprise normally solid polyvinyl chloride homogenously blended with chlorinated, substantially linear and unbranched macromolecular polyethylene.  The compositions may also comprise plasticisers such as sebacate, phosphate and phthalate esters, e.g. dioctyl phthalate, and polymeric epoxy esters, fillers, extenders, pigments, dyes, stabilizers, e g sodium organo-phosphates, and antioxidants.  The polyethylene may be prepared using as catalyst admixtures of compounds of metals of Group IVA, VA, and VIA of the Periodic System according to Mendeleeff, e.g. titanium and zirconium, and reducing agents therefore, e.g. aluminium alkyls; chromium oxide supported on silicated alumina; hexavelant molybdenum compounds and charcoal supported nickelcobalt.  The polyethylene may be chlorinated in solution, e.g. in carbon tetrachloride, or in aqueous media, preferably to a chlorine content of 30 to 60% by weight.  The compositions may be formed into sheets, pipes, tubing, pump and valve components, fume hoods and ducts.  Specifications 834,905, 843,209 also Belgian Specifications 502,597, 530,617 and 533,362 are referred to.
Patent GB-1031306-A (GB)
Title: Load support apparatus
IPC: F16L3/215
Filed: 1964-08-28
Abstract: 1,031,306. Support devices. L. S. SUOZZO. Aug. 28, 1964, No. 35427/64. Heading F2S. A support device, more particularly for piping P, comprises a combination of a constant support device C and a motorised support device M. The two support devices are connected together and are pivotally mounted on a beam 16. The device C may be as in Specification 830,558 and the device M as in Specification 971,791. A lever 26 which consists of a pair of parallel plates is pivoted about the casing of the device C. The spring loaded rod 24 of the device C, the load-carrying unit 35, and a linkage L are all pivotally connected to the lever 26. The linkage L co-operates with a screw member 41 of the device M, the device M comprising a combined electron motor, gearing and screw jack so that the effective length of the screw member 41 may be varied. The link L is provided with a solenoid unit 50, a pin extending from the movable, spring-loaded solenoid core co-operating with an aperture in, the screw member 41 when the solenoid is actuated. A device S, Fig. 1 (not shown), is responsive to variations in the angular position of the piping P and the device S and/or two switches S 1 , S 2  mounted on a bracket 69 and co-operating with an arm 72 of the lever 26 control the operation of the device M. Should the electrical supply fail the solenoid is de-energized such that the pin is retracted from the aperture in the screw member and the piping is then wholly supported by the device C,
Patent GB-392477-A (GB)
Title: Tracer projectile
IPC: H04M1/04
Filed: 1932-12-15
Abstract: 392,477. Tracer projectiles, and burning-compositions therefor. HIRTENBERGER PATRONEN-, ZUNDHUTCHENUND METALLWARENFABRIK, Hirtenberg, North Austria. Dec. 15, 1932, No. 35567. Convention date, April 20. [Classes 9 (i) and 9 (ii).] In a tracer projectile which during the first part of its trajectory emits a green light, and thereafter produces a red colour effect, the mixture f which is ignited after the charge e producing the green colour has burnt out is a composition which, if deflagrated separately, burns with a yellow-orange or a yellow light. The effect produced by this colour on the eye of an observer, following immediately after the green colours effect is that of deep red. A suitable mixture for the composition f is 14 parts by weight of 'strontium nitrate, 4 parts of barium nitrate, with the usual addition of barium peroxide, magnesium, and shellac. For special purposes, where it is desired that the change to a red light shall be followed by a transition again to a green or greenish colour, the proportion of barium nitrate in the mixture is suitably increased. Specification 349,839 is referred to.
Patent GB-1268333-A (GB)
Title: Self-aligning seal tip for splice box in continuous vulcanizing apparatus
IPC: B29C48/00
Filed: 1970-07-22
Abstract: 1,268,333. Vulcanizing extruded insulation. CROMPTON & KNOWLES CORP. 22 July, 1970 [23 July, 1969], No. 35570/70. Heading B5A. [Also in Division C3] A continuous vulcanizing apparatus comprises; (a) an elongated vulcanizing chamber in the form of a half catenary and through which vulcanizable material passes; (b) a splice box conduit which forms the entering portion of said chamber and which has an annular entrance passageway for receiving material and an annular entry opening for said passageway; (c) an extruder head having an annular exit passageway and an annular exit opening for said exit passageway from which vulcanizable material emerges; and (d) universal ball joint connecting means having a bore extending therethrough and external spherical surface portions for engagement with said entrance and exit passageways to permit relative pivoting movement between the ball joint and extruder head and between the ball joint and splice box, and to permit the passage of said material through the bore in said ball joint connecting means from said extruder head to said splice box. In Fig. 3, connecting means 22, having spherical outer portions 52 and 54 is placed within entrance passageway 32 to splice box 24 and into exit passageway 44 of extruder head 14, a seal being effected between die holder retainer 40 and the connecting means by sealing ring 50. Bore 68 allows a coated or insulation covered core 70 to pass from head 14 to box 24.
Patent GB-1197076-A (GB)
Title: A Feed Control Device with a Safety System
IPC: B24B47/26
Filed: 1967-08-03
Abstract: 1,197,076. Detecting vibrations, electrically. TOYODA MACHINE WORKS Ltd. Aug. 3, 1967 [Aug.11, 1966], No. 35637/67. Heading G1N. In a machine tool with a movable head carrying a tool (e.g. a grinding wheel) a piezo-electric transducer 8, Figs. 1 and 2 detects whether the grinding wheel is being advanced longitudinally too fast when it engages a workpiece, by detecting vibrations induced thereby whereupon the transducer generates a voltage which is filtered to eliminate signals at other than a specified frequency and is fed via a flip-flop circuit 11 to energize a relay 12 which closes a contact A. Thereby the wheel advance speed is reduced. A timer 13 delays closing of contacts 14 and thus the connector of a D.C. voltage to the flip-flop circuit, because abnormal vibration when starting up the machine could produce a corresponding voltage from the transducer 8 and erroneous behaviour of the control system. A safety system 16, Fig. 1 and Fig. 3 (not shown) is provided which prevents damage to the tool if the vibration sensing system is faulty. Thereby the load current of the motor is detected by a current transformer 18 and a rectified voltage proportional to the load current is applied to a junction a together with a voltage from a D.C. source 22. When this sum voltage exceeds a threshhold value of a Schmidt trigger 20 a relay 21 is thereby energized. Thus if the wheel starts grinding when being advanced at rapid speed the load current of the motor will increase abnormally, sufficient to cause operation of trigger 20 and of relay 21 which closes contacts B and C causing rapid withdrawal of the wheel. It is arranged also that the wheel cannot be advanced if the safety system is faulty. Alarms may be provided.
Patent GB-1078650-A (GB)
Title: Surgical or veterinary tubing containing a flow control valve
Inventor: HARRISON REGINALD WILLIAM
IPC: A61M39/04
Filed: 1964-09-01
Abstract: 1,078,650. Catheters &c. ESCHMANN BROS. & WALSH Ltd. Aug. 18, 1965 [Sept. 1, 1964], No. 35742/64. Heading ASR. [Also in Division F2] Surgical tubing such as catheters, trachestomy tubes and cuffs, and armoured tubes are provided with a valve for controlling the inflation of the inflatable balloon which holds the tubing in place. As shown, an inflation tube 3 is provided with a resilient plug held in place by a turneddown portion 2. The plug has a blind bore 1 the end 4 of which is provided with one or more slits 5. The slits are normally closed but may be opened by pressure exerted in the bore by a syringe. The slits may also allow the passage of a hypodermic needle. The tube 3 may be mounted within a drainage tube and may be provided with the balloon at its other end, the inflation of the latter being controlled by the valve. The latter may be of natural or synthetic rubber, p.v.c., rubberplastics copolymers or rubber modified polyethylene.
Patent GB-823732-A (GB)
Title: Thiophosphoric acid esters
IPC: C07F9/165
Filed: 1956-11-22
Abstract: The invention comprises thiophosphoric esters of formula <FORM:0823732/IV (b)/1> wherein R and R2 are C1-4 alkyl, R1= C1-4 alkyl which may be substituted by chlorine, A is alkylene containing at least 2 carbon atoms, X is oxygen or sulphur and Y is S, SO or SO2.  Preparative methods include: reaction of salts of O,O-dialkyl thiophosphoric acids with alkyl-mercapto- (or sulphoxyl- or sulphonyl-) alkyl halides; reaction of dialkyl phosphites with alkylrhodanides; reaction of dialkyl phosphoric or thionophosphoric acid halides with alkyl-mercaptoalkyl mercaptans; reaction of 5 - (b - haloalkyl -) - O,O - dialkylthiophosphates with mercaptans; addition of O,O-dialkylthiophosphoric acids to vinylalkylsulphones; reaction of alkylsulphonyl-alkyl-sulphohalides with O,O-dialkyl phosphoric acids.  The sulphoxyl and sulphonyl compounds may be prepared by oxidizing the corresponding mercapto compounds, e.g. as in Specifications 795,860 and 804,141 respectively.  The products are insecticides (see Group VI).  Specifications 691,374, 795,340 and 815,960 also are referred to.ALSO:Pesticidal compositions comprise thiophosphoric esters of formula <FORM:0823732/VI/1> wherein R and R2 are C1-4 alkyl, R1 is C1-4 alkyl which may be substituted by chlorine, A is alkylene containing at least 2 carbon atoms, X is oxygen or sulphur and Y is S, SO or SO2 along with solid or liquid carriers.  Concentrations of 0.00001 to about 1% are generally effective.
Patent GB-627729-A (GB)
Title: Improvements in or relating to the method for the production of a dial with casing
IPC: B21D22/14
Filed: 1946-12-03
Abstract: 627,729. Making clock &c. casings and bezels. TELEFONAKTIEBOLAGET L. M. ERICSSON. Dec. 3, 1946, No. 35813. Convention date, Dec. 4, 1945. [Class 83 (ii)] A dial and casing, particularly for clocks, is made by forming the'cupped structure, Fig. 1, dividing it along the line A, B and bending the cut edges of each of the portions 11 and 12 as indicated at 13 and 15 respectively, and inserting the part 12 into the part 11. The parts are kept together by three springs 16 arranged symmetrically and fitted between the part 12 and a groove 14 provided in the part 11. The cupped member is preferably spun from a disc and the edges 13 and 15 and the groove 14 are also formed by spinning. A glass may be inserted between the parts 11 and 12.
Patent GB-1211624-A (GB)
Title: An improved pen recorder
Inventor: FREEMAN REGINALD EDWARD
IPC: B65H20/04
Filed: 1968-07-26
Abstract: 1,211,624. Automatic position control. INSTRON Ltd. July 18, 1969 [July 26, 1968], No.35840/68. Heading G3R. [Also in Division G1] In recording-apparatus with a stylus 37 recording on the portion of a web 14 supported by a platen having a drive and an idler roller 12, 13 disposed at opposite ends thereof, and with the web extending from a supply roll 10 over the rollers 12, 13 to a take up roll 11, an assembly of rollers 16 is mounted to reciprocate in a plane parallel to the direction of feed of the web and the respective portions of the web between the roll 10 and roller 12 and between the roller 13 and roll 11 are looped around the rollers 16. A pair of guide rollers 15 are also provided and there may be more than one stylus. In the embodiment of Fig. 2, a belt drive to the drive roller 12 can be driven by a servo controlled roll 18 or from a roll 19 driven by a stepper to impart a slow, intermittent constant speed feed to move the web 14 over the platen. In either case a low accuracy servo system can control the rolls 10, 11 to provide paper at approximately the rate required to maintain the rollers 16 in a central position. A carriage 23 sliding on a guide 24 carries the rollers 16 and a brush 25 which coacts with a potentiometer wire 26 to transmit an error a signal (representing the deviation of the carriage from a central position) to a servosystem, which through a drive roll 27, drives a belt 28 in a direction determined by the error signal to drive roll 10 or 11 (each through a one-way clutch) to regulate the feed of the web 14 adjacent thereto. (For Figures see next page)
Patent GB-822335-A (GB)
Title: Improvements in or relating to packaging methods and apparatus
IPC: B65B31/02
Filed: 1955-12-14
Abstract: 822,335. Packaging under special atmospheric conditions. BERGHGRACHT, M. Dec.14. 1955 [Dec. 14, 1954], No. 35895/55. Class 94(1). In a method for packing materials in flexible impermeable bags under special atmospheric conditions, the filled bags are arranged in rows in channel members to avoid the necessity of individual handling, their mouths are partly closed, they are introduced into a vacuum chamber, and when treated to produce the desired atmosphere, are removed and finally sealed still held in the channel members. In one embodiment bags 10 in open channels 13 are sealed at 11 and perforated below the seal at 12. The channels 13 are arranged in a crate 14 and the whole is passed into a vacuum chamber 15 where, after removal of air, a neutral gas may be introduced. The crate is passed out of the chamber and the channels extracted for passage through means sealing the bags below the perforations 12 and, optionally, cutting off the closure parts protruding above this lower seal. In another embodiment the initial seal and perforations are dispensed with and the bag mouths are held partially closed by overlapping portions 34 on the channels. One side 39 of the channels may be hinged to permit removal of the bags. In a further embodiment for packing under vacuum, sealed and perforated bags as in Fig. 7. have valve flaps (not shown) which fold over and close the perforations when air has been extracted.
Patent GB-1168727-A (GB)
Title: Aquarium.
IPC: A01K63/00
Filed: 1967-08-04
Abstract: 1,168,727. Aquaria. "ETS M. SAVIC." 4 Aug., 1967 [26 Oct., 1966], No. 35897/67. Heading A1A. The frame of an aquarium is formed as a one piece moulding of a plastics material. The back and bottom panels 5, 7 are made of plastics material and are integral with the frame. Grooves 6 are arranged to allow insertion of panes 2, 3, 4 with a tight fit. A capping frame 8 is provided and this can be in the form of a lid housing a lamp.
Patent GB-1453184-A (GB)
Title: Air-cushion craft
IPC: B60V1/04
Filed: 1972-08-01
Abstract: 1453184 Air cushion vehicles PFRCORSON 25 Oct 1973 [1 Aug 1972] 35917/72 Heading B7K An air cushion vehicle has side walls 8 defining a transversely concave cushion space which in operation is closed at its front end by an air curtain which also delivers air to the cushion, the air being delivered through a transverse slot at the lower end of a duct 4a by a fan 4. A further fan 6 at the aft end of the vehicle delivers air to an aft duct 6a of which the upper wall 14 extends to a stepped cavity 16 which directs the airflow aft for propulsion of the vehicle and it is stated that some air assists in maintaining the cushion. Additional propulsion is provided by an air propeller 20. In an alternative arrangement fan 6 and duct 6a are dispensed with.
Patent GB-411558-A (GB)
Title: Improvements in thread reeling machines
IPC: D01B7/04
Filed: 1932-12-19
Abstract: 411,558. Controlling thread during reeling, particularly in reeling natural silk from cocoons. KOWADA, I., 62, Aza- Awono, Ayabe-machi, Ikaruga-gun, Kyotofu, Japan. Dec. 19, 1932, No. 35968. Convention date, Jan. 12. [Class 120 (ii).] In reeling-machines, particularly machines for reeling natural silk, the thread is passed as shown around a driven conical roller 4 and over bowls 3, 5 on an adjustably weighted lever 2 so that if the tension increases or decreases the consequent movement of the lever 2 leads the thread to a part of the roller of greater or lesser diameter in compensation. The roller 4 and the winding-spool 6 are driven from a shaft 7. To prevent slip of the thread the surface of the roller 4 is preferably coated with gum or other substance. An oscillating ratchet roller 16 is mounted in the cocoon pan and serves to carry thinskinned cocoons 19 to the far side of the pan, the thread 20 therefrom being caught in the gauge plate 21 and the cocoon falling on to a conveyer 23. A similar conveyer 22 is provided for pupa and dropped cocoons.
Patent GB-840021-A (GB)
Title: Improvements in or relating to curing polyester resins
IPC: C08F283/01
Filed: 1958-11-10
Abstract: In the process of Specification 832,169, wherein unsaturated polyester resins, preferably in the presence of a comonomer, are polymerized using a tertiary hydroperoxide as catalyst and a vanadium compound in which the vanadium has a valency below 5, as promoter, benzene phosphinic acid is added as a second promoter, preferably in an amount of 0.03-0.5% by weight of the total mixture.
Patent GB-781678-A (GB)
Title: Fastening means for roll cutting machine assembly
IPC: B26D7/26
Filed: 1955-12-16
Abstract: 781,678. Cutting apparatus. JAGENBERGWERKE AKT.-GES. Dec. 16, 1955 [Dec. 18, 1954], No. 36114/55. Class 31 (1). In apparatus in which axially adjustable rotary disc knives 4 coact with axially adjustable grooved cutting sleeves 2 supported by a cylinder 1 to cut a web longitudinally, the cutting sleeves are secured to the cylinder by means of a plurality of expansible members 9 disposed within dovetail grooves 8 of a jacket member 5, the expansible members 9 being connected alternately to air distributing chambers 12 disposed adjacent each end of the cylinder, and each chamber 12 being connected to a source of compressed air. The expansible members 9 are protected on their outer faces by covering strips 17. More than two sources of compressed air may be provided.
Patent GB-951720-A (GB)
Title: High input impedance transistor amplifier
IPC: H03F1/34
Filed: 1962-09-24
Abstract: 951,720. Transistor amplifier circuits. BENDIX CORPORATION. Sept. 24, 1962 [Oct. 6, 1961], No. 36287/62. Heading H3T. A variable gain amplifier comprises two common emitter stages, a gain control potentiometer connected to the input circuit and two feed-back paths from the output to the input, one in series with the input circuit and one in shunt. In the Figure, the output of a radio receiver detector is applied through a tone control network 18 and a volume control potentiometer 16 to an amplifier 19, 26. Positive voltage feed-back is applied through a resistor 33 in shunt with the input circuit and negative voltage feed-back is applied through a resistor 34 in series with the input circuit to increase the input impedance as seen by the detector. Variation of the volume control potentiometer varies the positive feed-back from a maximum at the loudest setting to a minimum at the quietest. D.C. stability of the amplifier is increased by means of thermistors 27 and 29. In an alternative circuit (Fig. 4, not shown) coupling between the stages is effected by an auto-transformer and the negative feed-back is applied in series with the input through a feed-back transformer.
Patent GB-326243-A (GB)
Title: Improvements in or relating to railway signalling, communicating and controlling apparatus
IPC: B61L3/04
Filed: 1928-12-10
Abstract: 326,243. Etheridge, J. R. Dec. 10, 1928. Track apparatus for stopping trains and for actuating signals on trains.-Apparatus for operating the steam regulator and brakes independently of the driver comprises a double inclined track contact placed between the rails and operated by a toggle lever 9 which is controlled in conjunction with signal-operating mechanism and coacts with a horizontal pivoted lever 11 on the engine. The lever 11 is connected by means of an adjustable coupling 16 to a lever or levers 17 operating a link 20, coupled to the regulator handle 21 and a link 22 coupled to the brake controlling valve 23. One bar of the track contact is pivoted to a bracket 3 and the other is connected by means of a pin and slot to a bracket 8. The hinged connection of the bars is connected to a toggle 9, on a rockshaft 10 controlled by the signal operating mechanism. To operate the regulator before the brake, lost motion is provided between the link 22 and the brake lever 23<a> by a pin and slotted quadrant. Pin and slot connections between the lever 17 and the operating links 20, 22 allow the driver to stop and start the train independently of the apparatus. The end of the lever 17 operates a spring controlled switch 24 in the circuit of a bell 27 or lamp 26 for warning the driver. The driver can break this circuit by a tumbler switch 28 and also reset the lever 17 by means of a pedal. The bars of the track contact may be of the cross section shown in Fig. 4 and may be placed nearer to one rail than the other and attached to the track rails by studs. With this latter arrangement either the stopping means on the trains or the track contact is duplicated to provide control when the engine is reversed.
Patent GB-356592-A (GB)
Title: Improvements in or connected with handles for teapots and othre domestic articles for containing hot liquids
IPC: A47J45/07
Filed: 1930-12-03
Abstract: 356,592. Teapot &c. handles. TOWNS, P. F., Greenfields, Onchan, Isle of Man. Dec. 3, 1930, No. 36385. [Class 66.] A handle c, Fig. 3, of nonconducting material is formed with a web c<2> provided with dovetailed edges c<3> adapted to be slidably engaged with a correspondingly-shaped socket a<2>, Fig. 4, or with spaced lugs d, d<2>, Fig. 6 provided on the wall of a metal teapot or other receptacle for hot liquids and formed with upper lateral flanges or stop members a<4>, d<3> respectively. A permanent connection may be made by pressing the socket walls a<3> on to the edges of the web or by means of pins.
Patent GB-627611-A (GB)
Title: Improvements in pneumatically-actuated diaphragm pumps for feeding fuels to internalcombustion engines
IPC: F02M59/10
Filed: 1946-12-10
Abstract: 627,611. Diaphragm fuel pumps. SOC. ANON. SOLEX. Dec. 10, 1946, No. 36422. Convention date, Dec. 18, 1945. [Class 102 (i)] A fuel pump comprises two diaphragms 16, 18, the smaller 16 performing the function of a pump to lift fuel from the tank 9 to the chamber 5 and being connected to the larger diaphragm 18 which is loaded by a spring 23 and exposed to the pressure in the chamber 29 which is connected to the induction pipe 22 of the engine. A lever 30 is provided for manual actuation. A second spring may be provided within the spring 23 and arranged to resist the movement of the diaphragm after it has moved a certain distance against the action of spring 23. Fig. 3 shows an arrangement wherein the space between the diaphragms 16, 18 is used as the pumping chamber; the knob 35 is provided for manual actuation.
Patent GB-1032042-A (GB)
Title: Improvements in or relating to electric insulators
Inventor: MELLOR SAMSON
IPC: H01B17/20
Filed: 1961-10-11
Abstract: 1,032,042. Insulators. ENGLISH ELECTRIC CO. Ltd. Oct. 4, 1962 [Oct. 11, 1961], No. 36481/61. Heading H2C. The flashover point between a conducting cap 14 on a procelain insulator 10 having at least two radially-extending sheds 12, 13 and a conducting support 11 to which the insulator is cemented is raised by an insulating collar 16 surrounding the lower part of the conducting cap. The collar is formed integrally with the insulator and cemented to the cap. In Fig. 2, not shown, the insulator is hollow.