baber/WOPTO huggingface dataset:
Patent GB-1064823-A (GB)
Title: Apparatus for dispensing measured quantities of liquid
IPC: B01L3/02
Filed: 1964-06-25
Abstract: 1,064,823. Powered pipette. GRIFFIN & GEORGE Ltd. and A. H. WALTER. May 21, 1965 [June 25, 1964], No. 26384/64. Heading B1X. [Also in Divisions B8 and Fl] A pipetting device useful for blood sampling comprises a reservoir for liquid, a reciprocatory pump, a supply conduit leading to the pump from the reservoir, a delivery conduit leading from the pump, and a manipulating member which at the same time as the pump is connected to the supply conduit also causes the pump to suck in liquid, and when the pump is connected to the discharge conduit, causes it to expel liquid. In a preferred embodiment, a second pump in the system sucks a different volume of a second liquid into the delivery conduit from a second reservoir and expels this volume along with the first volume of the first liquid into a third reservoir. In Fig. 3, conduits 53, 54, 55, 56 and delivery conduit 30 are initially filled with the first liquid, 64 represents the high pressure end and 63 the low pressure end of an air pump. When the ganged valves 50, 51 and 52 (which constitute the bores in the plug of a plug valve) are in the position shown by the dotted lines, pumps 24 and 20 suck liquid from the system into their barrels, and if reservoir 65 is in raised position, a volume of the second liquid equal to the volume of first liquid drawn into barrel 20, is drawn into discharge tube 30. When the valves are changed to the position shown by the full lines, the combined volumes are expelled at 30, the second liquid, for example blood being diluted, being washed out by the first. The volumes sucked in by the pumps can be altered by adjustment of the lengths of the connecting rods to the pneumatic motors 14 and 13.
Patent GB-373513-A (GB)
Title: Device for cleaning type
IPC: A46B11/06
Filed: 1931-09-21
Abstract: 373,513. Reservoir brushes. RITZMANN, A., Eisfeld, Thuringia, Germany. Sept. 21, 1931, No. 26390. [Class 19.] A device for cleaning type comprises a bottle 1 with a threaded neck 2 to accommodate a cap 3, which presses on an apertured washer 5. The aperture is closed by an independent spring valve 7. A brush 10 is mounted in the cap 3 for longitudinal movement so that, in use, the brush displaces the spring valve 7 to release cleaning g fluid to bristles 12 by a channel 11.
Patent GB-482450-A (GB)
Title: Improvements in and relating to protective apparatus for electrically driven winding, hauling and like gear
IPC: B66B1/12
Filed: 1936-09-29
Abstract: 482,450. Fluid-pressure servomotorcontrol systems. SMITH, G. D., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Sept. 29, 1936, No. 36453. [Class 135] Speed-controlling apparatus LC for electrically driven winding equipment is coupled to an intermediate point f on a floating lever c, one end of which is connected to a speed control member, and the'other end of which is connected to a torque motor CLTM or its equivalent, the point f being relatively near to that end of the lever c which is connected to the motor CLTM so that when the current of the winder motor WM exceeds a predetermined value, the motor CLTM, which is responsive to this current, overrides the action of the normal speed control member to operate the controller LC to reduce the speed. A control member a is connected to an intermediate point on a lever lr, having its ends connected respectively to a valve PVI, and the piston of a power cylinder PC1, so that upon operation of the member a, the piston of the cylinder PC1 operates a bell-crank lever b to a corresponding position. The lever b operates contacts in the stator circuit of the motor WM and positions one end of the lever c, and the point f on the lever c is coupled to a valve PV2 controlling a power cylinder PC2 the piston of which is coupled to a liquid controller LC in the secondary circuit of the motor WM. Thus the controller LC is moved in accordance with the movement of the member a. The torque motor CLTM has its secondary connected to resistances RR, and its primary to the secondary of a transformer CT, the primary of which is energized by the stator current of the motor WM. The motor CLTM positions a spring biassed arm LV connected to the end e of the lever c, and this arm is effective to position the lever at a predetermined current such as twice full load current. The control member a may comprise a driver's control member, or a cam member driven from the winder drum. Specifications 482,447, [Group XXXV], and 482,448, [Group XXXVIII, are referred to.
Patent GB-1496592-A (GB)
Title: Bearings
IPC: F16C33/54
Filed: 1975-06-24
Abstract: 1496592 Bearings TORRINGTON CO 24 June 1975 [3 July 1974] 26670/75 Heading F2A In a roller bearing cage formed from two interconnected members 12, 14, each member has a plurality of circumferentially spaced substantially rectangular openings 18 with the openings in one member being aligned with and spaced from the openings in the other member to form roller pockets, a portion 20 of each long side of each opening being adapted to retain a roller when placed in the pocket, and there being a tongue 24, 34 on one long side of each opening and in all pockets; each tongue on one member extends towards the other member and faces a respective tongue on said other member, and the circumferential spacing between the tongues in each pocket is such that the tongues act as guide surfaces for the rollers. The openings are formed by a punching operation. The tongues may have a U-shape.
Patent GB-532926-A (GB)
Title: Improvements in single-acting two-stroke cycle internal combustion engines
IPC: F02B75/02
Filed: 1939-09-27
Abstract: 532,926. Two-stroke engines. ANDRESSEN, H. C. H. Sept. 27, 1939, No. 26715. Convention date, Oct. 29, 1938. [Class 7 (ii)] In a single-acting two-stroke engine having a stationary cylinder 3 and a crosshead guide 12 for the piston rod 8 and having pistoncontrolled ports 15 opening into a scavenging-air chamber 16, the cylinder 3 is formed as a liner fixed only at its upper end to the cylinder cover 1 and axially movable in an airtight manner through the upper wall 20 of the chamber 16. As shown, the chamber 16 communicates with a scavenging-air conduit 22 and the lower wall 17 of the chamber, provided with a stuffing box 18, is inclined towards a drain opening 19 for oil dripping from the cylinders. A cam-actuated exhaust valve 23 is arranged in the cylinder cover 1.
Patent GB-830936-A (GB)
Title: New esters of n-alkyl-ú­-aminosalicylic acids
Filed: 1956-08-31
Abstract: The invention comprises esters of the general formula <FORM:0830936/IV (b)/1> (wherein R represents an alkyl radical of 4 or 5 carbon atoms, R1 represents hydrogen or a methyl radical, and n is a whole number from 7 to 15 inclusive), and the preparation thereof by reacting an appropriate N-alkyl-p-aminosalicylic acid, or a reactive derivative thereof, with a polyglycol of the general formula HO-(CH2CH2-O)n-R1 or a reactive derivative thereof, or by hydrolysis or hydrogenolysis of a compound of the general formula <FORM:0830936/IV (b)/2> wherein X represents a residue convertible into a free hydroxy group by hydrolysis or hydrogenolysis (e.g. a benzyloxy group). The products are useful as cough remedies.
Patent GB-418862-A (GB)
Title: Manifolding apparatus
IPC: B41L7/08
Filed: 1933-09-29
Abstract: 418,862. Copying documents. RITZERFELD, W., 107, L³tzowstrasse, Berlin. Sept. 29, 1933, Nos. 26832 and 26833. Convention dates, Sept. 29, 1932 and Jan. 20, 1933. [Class 100 (ii).] In apparatus for manifolding by means of a mirror-script original moistened from the back, the original is laid or mounted with the mirrorscript outwards on an absorbent base saturated with liquid. The copy sheets are preferably dry but may, if desired, be moistened ; e.g. the moistening-device usually employed in apparatus of the above kind may be adapted to apply moisture to a cloth covering on a printing drum or to the sheets as required. In one form, a linen, felt, &c. covering 3, Fig. 1, is attached to a rotary drum 1 co-operating with an impression roller 2, by the usual clamping-bar 5 securing the original on the drum, and moisture is applied to the covering by a wiper extending from a container 7 retained in the operative or inoperative position by a spring 8 ; alternatively, the device 7 may be hanging loose and pressed by hand on the cloth 3 as required. The cloth 3 may, if desired, be fixed to the drum 1 by screws or by an adhesive. In a modification, Fig. 4, the drum 1 is perforated, a velvet cover is clamped on the outside, and a cloth lining 201 is secured to the inside. Moisture is supplied by a pad or brush 19 protruding from a container 16 pivoted at 9 to a stationary bracket 14 and retained in the operative or inoperative position by an over-centre spring 10 ; the clamp 5 is covered by a bridge 23. The container 16 is supplied from a vessel communicating with a bore in the drum shaft 13 in which is an outlet 12 whereby the liquid runs into a cup 11 on top of the container 16. The Specification as open to inspection under Sect. 91 comprises also absorbent material attached to a flat base. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 390,341.
Patent GB-1062978-A (GB)
Title: Improvements in or relating to support devices for reinforcement bars in reinforced concrete building construction
IPC: E04C5/16
Filed: 1964-06-29
Abstract: 1,062,978. Reinforcement spacers. M. AMSLER. June 29, 1964 [June 27, 1963], No. 26856/64. Heading E1W. A resilient plastics or steel reinforcement spacer is generally of inverted Y section, recesses b being provided in the sides of the feet so that the spacer can be clipped onto a reinforcing bar c. Transverse reinforcing bars may be accommodated under the rim a<SP>2</SP> or e<SP>1</SP>, and in the embodiment of Fig. 5, supporting crossribs c<SP>3</SP> are also provided. The spacer may be of die-cast polyamide or polystyrene, or may be punched from stainless steel strip. The spacer is of such a size that if it rests on the shuttering on its feet, on its unrecessed side, or on its rim, the reinforcing bar c will be the same distance from the shuttering.
Patent GB-224891-A (GB)
Title: Improved dentifrice material
IPC: A61K8/19
Filed: 1924-11-11
Abstract: 224,891. Squibb & Sons, E. R., (Assignees of Nitardy, F. W.). Nov. 13, 1923, [Convention date]. Dentifrices.-A material for use in dentifrices consists of magnesium hydroxide substantially free from water and suspended in glycerine, in which condition it is incapable of reacting with other ingredients in the dentifrice. The material is prepared by making a suspension of magnesium hydroxide in water, and draining off the water as far as possible. The product, which contains about 86 per cent of water, is placed in an evaporating pan and glycerine to the amount of water contained therein is added. The water is then removed by evaporation, which may be carried out in vacuo. The resulting product is a thick paste containing about 14 per cent of magnesium hydroxide, and may be mixed with other ingredients, e.g. precipitated chalk, glycerine, flavours, and antiseptics, to produce a dentifrice.
Patent GB-616502-A (GB)
Title: Improvements in snap action electric switches
IPC: H01H23/16
Filed: 1946-09-07
Abstract: 616,502. Tumbler switches. M.P. STAINLESS PRODUCTS, Ltd., and THOMPSON, J. F. Sept. 7, 1946, No. 26945. [Class 38 (v)] In a tumbler switch having a spring-toggle snap-action mechanism, the toggle lever 22 is formed by a T-shaped metal stamping with a bifurcated stem providing a slot for the thrust piece 29, which is pivoted on the extensions 14 of a dolly 13. The ears 27 formed by the head of the T-shaped lever, engage abutments 28 to positively start the movement of the contact carrying member 15 on the initial movement of the dolly. The moving contact 17 is secured to the member 15 by a rivet 19 which has a slotted head to prevent lateral movement of the toggle lever on its pivot pin 21.
Patent GB-152528-A (GB)
Title: Improvements in or relating to multiple disc friction clutches
IPC: F16D13/64
Filed: 1919-11-03
Abstract: 152,528. Macnay, W. Nov. 3, 1919. Clutches, friction.-In Weston type plate friction clutches, loose " ferodo " or like non-metallic friction rings e are held against radial movement on the cast iron plates d, m by forming T- shaped heads with shoulders f, n at the inner and outer edges respectively of the plates.
Patent GB-173295-A (GB)
Title: Improvements relating to the inking and distributing rollers of printing presses
IPC: B41F31/30
Filed: 1920-09-22
Abstract: 173,295. Crabtree & Sons, Ltd., R. W., and Terrey, A. Sept. 22, 1920. Inking-apparatus.-In bearings for inking and distributing rollers of printing-presses of the kind which are adapted for both a pivotal and a forward or rearward adjustment, both these adjustments are effected from a single operating member. As shown, a roller is supported in bearings a each having an extension a<1> adjustable to and fro by a screw d within a block e pivotally adjustable about a pin b with respect to a fixed baseplate c. The latter is effected by a spindle f provided with an eccentric end f<2> engaging a slot c<1> in the plate c and carrying a worm-wheel f<1> at its upper end in mesh with a worm g loosely mounted on the screw d. A hand-wheel h on the outer end of the screw d has teeth h' or clutch faces adapted to engage in turn teeth &c. on a collar d<1> fixed to the screw d and a sleeve g' carrying the worm g, wherebv either adjustment may be effected from the wheel h. The screw b passes through a slot a<2> in the extension a' and carries a nut b<1> for securing the bearing in adjusted position.
Patent GB-602528-A (GB)
Title: Improvements in or relating to electrical connecting plugs incorporating cord-gripping means
IPC: H01R13/595
Filed: 1945-10-16
Abstract: 602,528. Two-part couplings strain-taking devices for flexible leads. KOLSTER BRANDES, Ltd., and CHAFFEY, L. G. Oct. 16, 1945, No. 27031. [Class 38 (i)] [Also in Group XXV] In a multi-pin plug comprising a base C and a cover A threaded externally thereon and apertured for the passage of leads, a washer B, through which the wires are also passed, is located between the cover and the base and is engaged by the base A<1> of the cover, when the latter is in place, so as to clamp the leads against a domed projection C<1> on the base. The latter may have ribs C<2> engaging grooves B<1> on the washer to prevent rotation thereof. The cover is moulded so as to provide a finger grip. In a modification, Fig. 1 (not shown), the cover and base are externally and internally threaded respectively.
Patent GB-270724-A (GB)
Abstract: 270,724. British Thomson-Houston Co., Ltd., (Assignees of Moehle, H. F.). May 4, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Fats and fatty oils.-Drying and semi-drying oils are heated until formed into gels; the gels are then maintained at about 300‹ C. until reliquefied. Oils specified are linseed oil, perilla oil, soya bean oil, cottonseed oil, castor oil, and a mixture of 99 litres of china wood oil with 1 litre of linseed or other oil specified. The " degelled " oil may be used as an impregnating or coating material, e.g. for insulating electrical conductors, as.on heating in thin films in contact with air it is rendered tough, flexible, and stable; as an addition to raw or boiled linseed or other oil to prevent gelation or to form varnishes, or moulding materials. It may also be used dissolved in organic solvents, or blended by heating with resins, gums, asphalts, or other materials.
Patent GB-477014-A (GB)
Title: An improved process for preparing nitrated derivatives of hydroformed naphthas and products thereof
Filed: 1936-06-19
Abstract: Nitro compounds are manufactured by treating hydroformed naphthas with nitrating agents used for the nitration of aromatic hydrocarbons.  The starting materials are produced as described in Specification 477,015 and may be subjected to a preliminary polymerizing and condensing treatment as described therein.  In an example the starting material obtained as described in the example in Specification 477,015, or a distillation fraction thereof, e.g. the fraction having the boiling range of toluene, is treated with a mixture of nitric and sulphuric acids, somewhat diluted with water. The product is mainly nitrotoluene.  The nitrated products may be used as explosives or as intermediates in dye manufacture. They may be reduced to amines, e.g. by means of zinc and hydrochloric acid or by catalytic hydrogenation.  The resulting amines may be used as antidetonating agents in gasoline, and as preservatives and antioxidants in gasoline, lubricating oil and other hydrocarbon compositions, including rubber.  The Specification as open to inspection under Sect. 91 comprises also the second method of preparing the starting materials described in Specification 477,015 as open to inspection under Sect. 91.  This subject-matter does not appear in the Specification as accepted.ALSO:Amines obtained by the reduction of nitration products of hydroformed naphthas may be used as anti-detonating agents in gasoline and as preservatives and anti-oxidants in gasoline, lubricating oil and other hydrocarbon compositions.ALSO:Amines obtained by the reduction of nitration products of hydroformed naphthas may be used as preservatives and anti-oxidants in rubber.
Patent GB-1118973-A (GB)
Title: Improvements in or relating to signal compensating circuits for data-scanning equipment
IPC: G06V10/28
Filed: 1966-06-17
Abstract: 1,118,973. Character recognition. SIEMENS A.G. 17 June, 1966 [18 June, 1965], No. 27157/66. Heading G4R. [Also in Division H3] A compensating signal for a digitizer is derived by passing the digitizer input to three storage circuits, the average of the output of one of them and the larger of the outputs of the other two being derived, time constants of the latter two circuits being different. In Fig. 2, a signal a from photo-electric scanning of a character to be recognized is fed to a Schmitt trigger DT to digitize it, and to storage circuits SS and WS which accept signals from black and white (or rather character and background) respectively by virtue of transistors ST, WT1, WT2 of different polarity types. Circuit SS (black) has an RC circuit SO, SR to store its input, the charging and discharging time constants being 2Ás and 1 ms respectively. Circuit WS (white) has two RC circuits, WC1, WR1 and WC2, WR2, having charging time constants of 2Ás and 100Ás respectively, and discharging time constants of 2Ás and 1 ms respectively. The larger of the two stored signals in circuit WS is selected by a gate circuit G and applied, together with the stored signal from circuit SS, to a potentiometer W which supplies the average of its inputs through an amplifier U to the input of the Schmitt trigger as the latter's threshold level. The Schmitt trigger output is passed through a gate if and only if the difference of the two potentiometer inputs exceeds a threshold, as determined by a differential amplifier DV and threshold switch MKT. Transistors TW, TS associated with the RC circuits WC2, WR2 and SC, SR enable discharging to be prevented during scanning spot fly-back, especially during a preliminary scanning to establish the position of the character. Circuit SS may be replaced by a circuit like WS (apart from the input transistor polarity types).
Patent GB-421964-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04D1/00
Filed: 1934-09-21
Abstract: 421,964. Centrifugal pumps. SULZER FRERES SOC. ANON., Winterthur, Switzerland.-(Assignees of Atteslander, E. ; 115, Rue de Jambon, Ghent, Belgium) Sept. 21, 1934, No. 27162. Convention date, Nov. 9, 1933. Drawings to Specification. [Class 110 (i)] The impeller blades or the guide vanes of a centrifugal pump are unevenly spaced to reduce noise. Double sided impellers have the two sets of blades staggered with respect to each other. In a modification the unequal spacing is produced by varying the shape of the blades. The impeller may be used with liquid ring pumps.
Patent GB-418328-A (GB)
Title: Improvements in or relating to change speed transmission mechanism
IPC: F16D23/08
Filed: 1933-10-04
Abstract: 418,328. Claw clutches; facilitating changing speed. PULSOMETER ENGINEERING CO., Ltd., and WARREN, R., Nine Elms Iron Works, Reading, Berkshire. Oct. 4, 1933, No. 27325. [Class 80 (ii).] In an isolating claw clutch 2, 6 for the gearbox of a motor-vehicle, a balking ring 11, accommodated within the ring of dogs 3 on the driven fixed clutch member 2 and provided with dogs 12 similar to the dogs 3, is capable of limited angular movement on the driving shaft 1, on which the clutch member 6 is splined, by reason of a lost motion connection 15, 16, the adjacent races of the ring 11 and member 2 being in frictional engagement either by surface contact or by oil drag. The member 6 may have asingle ring of dogs 7 co-operating with the two sets of dogs 3, 12, as shown in Fig. 1, or may have two rings of dogs 7, 70, Fig. 4, cooperating with the dogs 3, 12 respectively. The dogs 12 or 70 protrude axially beyond the ends of the dogs 3 or 7 respectively, so that, during balking, the main dogs are clear of each other. A brake cone 9 formed on the member 6 coacts with a fixed cone to brake the shaft 1 on disengagement of the clutch. Instead of being mounted on the shaft 1, the ring 11 may be mounted on an extension of the member 6, and a spring may be provided to maintain the ring 11 against the member 2. The end faces of the dogs 7 and, if desired, of the other dogs may be chamfered. Specifications 394,144 and 410,378 are referred to.
Patent GB-231544-A (GB)
Title: Improvements in process of and apparatus for drying oxidizing and conditioning material in web form
IPC: D06C7/00
Filed: 1923-11-01
Abstract: 231,544. Harris, G. D. Nov. 1, 1923. Drying materials in long lengths -In a process of drying and conditioning material in web form, such as paper &c., the paper as it comes from a press or coating machine is formed into festoons and conveyed through the drying- chamber upon poles E, E<1> supported upon endless chains D, D<1>. The poles in the front part of the chamber are spaced wider apart than those in the rear part and the chains are so arranged that the poles are automatically transferred from one chain to the other during their passage, while the paper is subjected to downwardly directed currents of heated air. Adjustable fabric screens G are arranged at the sides of the chamber so as to retain the air in contact with the material and leave spaces at the bottoms of the festoons through which the air is withdrawn partly into an exhaust duct H and partly into a duct I which communicates with a heating-chamber divided into compartments C containing heating- coils of varying intensities. The air then passes through a space F and staggered ports f, f<1>, f<2> into the drying-space. Fresh air is admitted to the circulating fan through an opening controlled by a slide.
Patent GB-482837-A (GB)
Title: Improvements in or relating to the selvedges of woven fabrics and the method of producing the same
IPC: D03D3/00
Filed: 1936-10-10
Abstract: 482,837. Woven fabrics. CLUTSOM, C. Oct. 10, 1936, No. 27542. [Class 142 (iv)] A double-faced fabric having face wefts 3 and back wefts 4 has a knitted selvage at one or both edges. This may comprise interknitted loops of the weft 3 formed into a chain of loops 5 engaging loops of the back weft as shown in Fig. 2, or loops of both wefts 3, 4 may be knitted together as shown in Fig. 4. One or more weft laying members and latch needles may be used, as described in Specification 478,529, and there may be several sets of the mechanism arranged one above another as in the production of separate webs or pieces. The fabric may have a silk or artificial silk or like lustrous front and a cotton, wool or like back. The fabric may comprise elastic threads. It may be used for corsets, belts, girdles, &c. The invention may be applied to ribbons.