baber/WOPTO huggingface dataset:
Patent GB-380900-A (GB)
Title: Improvements in or relating to pumping devices
IPC: F04C14/22
Filed: 1931-08-04
Abstract: 380,900. Rotary pumps. CARTER, M., 20, Balfour Street, BEAN, H. and CAMPBELL, A., (trading as UNIVERSAL VALVE & CHEMICAL ACCESSORIES CO.), Dawson Lane, Dudley Hill, both in Bradford. Aug. 4, 1931, No. 22035. [Class 110 (ii).] In pumping devices of the kind comprising primary and secondary pumps in series wherein the inequality of pressures on the suction and delivery sides of the secondary pump is utilized to vary the effective capacity of the primary pump, the parts are so disposed that an increase of delivery pressure over suction pressure causes an increase in the volume swept by the pistons, blades, vanes or the like of the primary pump, and vice versa. The suction and delivery sides of the secondary pump may be connected to the opposite sides of a piston, diaphragm or flexible bellows, the movement of the latter acting on the primary pump either by mechanical connection or through the medium of a fluid pressure or other form of relay ; or the suction and delivery sides of the secondary pump may be connected to the opposite sides of a moving part of the primary pump. According to Fig. 3 the delivery and suction sides of the secondary pump are connected to the upper and lower sides respectively of a piston 3 which is connected by a link 10 to a ring 4. The ring 4 is pivoted to the casing 1 at 6 and is eccentrically disposed in relation to a rotor 5 carrying spring-pressed blades 7, the eccentricity being varied by the movement of the piston 3. A dashpot 13 forming a loose fit in the hollow upper side of the piston 3 is provided or alternatively, two spring-loaded blades fitted in the body of the pump may bear on the outer face of the ring 4 at the two opposite horizontal points thereof. According to a modification, Fig. 5, the piston 3 has a serrated face constituting a rack which engages a pinion 14 mounted on a sleeve 15 threaded in the casing 1 and carrying the connecting link 10 by means of a ball joint. According to a further modification, Fig. 7, the ring 4 has flattened sides which slide in correspondingly formed parts of the casing 1. The space below the ring 4 communicates with the suction side of the secondary pump whilst the secondary pump delivers through passages 12 across the space above the ring 4. The movement of the ring 4 is controlled by a spring 16. The capacity of the secondary pump may be adjustable. A single primary pump may be used to feed a number of secondary pumps.
Patent GB-1440308-A (GB)
Title: Benzodiazepine derivatives
IPC: C07D405/12
Filed: 1975-05-22
Abstract: 1440308 Benzodiazepines DDSA PHARMACEUTICALS Ltd 22 May 1975 22057/75 Heading C2C Compounds of the general formula (R 1 = H, halogen, CF 3 , CN, NO 2 , C 1-10  alkyl or alkylthio, C 1-6  alkoxy; R 2  = C 1-10  alkyl or hydroxyalkyl, C 2-6  alkenyl, benzyl; R 3 =C 1-10  alkyl, substituted C 1-10  alkyl; A=CR 4 =N, CR 4  = N(-#O) ; R 4 =phenyl, (C 1-10  alkyl)- phenyl, nitrophenyl, halophenyl, pyridyl) and their acid addition salts are prepared by etherification. The products are sedatives and hypnotics, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1311755-A (GB)
Title: Contactless synchronising device for sewing machines
IPC: D05B65/00
Filed: 1970-05-07
Abstract: 1311755 Controlling sewing machines FRANKL & KIRCHNER FABRIK FUR ELEKTROMOTOREN UND ELEKTRISCHE APPARATE 7 May 1970 [17 May 1969] 22084/ 70 Heading D1G For controlling stopping of and a needle thread cutter of a sewing machine a contactless synchronising device is provided comprising two rotating shutters, the first shutter 5 having a slot 22 which stops the machine in a low needle position and the second shutter 6 having a first slot 18 which causes a thread cutter to be brought under the stitch plate and a second displaced slot 19 which causes stopping of the machine in an upper position and withdrawal of the cutter to cut the needle thread. The shutter discs 5 and 6 are adjustably mounted on a shaft 2 which is driven from the machine shaft. The signals produced by the slots or other means at the receiver 17 of an optical, electrical or electronic indicating instrument control a multi-stage relay arrangement controlling the thread cutter magnets MI 1  and MI 2 , and a clutch and brake in the machine drive. On actuation of a switch key (T) the brake is applied and released by time-delay relays and the clutch then operated to rotate the machine slowly. When the slot 18 indicates the high needle position the magnet MI 1  is energised moving the cutter blade under the stitch plate and when the slot 19 actuates the receiver 17 the brake is re-applied, the magnet MI 2  is energised to withdraw the cutter blade to cut the needle thread and after a further time delay the brake is released to permit manual adjustment of the needle position. The magnets MII and MIII respectively release the needle thread tension during the cutting operation and draw the cut thread to one side of the presser foot so that it is drawn to the underside of a fabric.
Patent GB-1278028-A (GB)
Title: Modified toggle assembly for circuit breakers
IPC: H01H71/52
Filed: 1971-04-19
Abstract: 1278028 Electric circuit breakers HEINEMANN ELECTRIC CO 19 April 1971 [4 March 1970] 22166/71 Heading H1N An automatic circuit breaker similar to that of Specification 1,145,174 has its latch 62 biased to the latching position by a spring 120 which urges the latch extension 126 against the pin 90 forming the knee joint of the toggle linkage 86, 88 which collapses when released due to rotation, against the spring bias, of the latch 62 by engagement of its column 129 by an electromagnet armature (not shown).
Patent GB-460903-A (GB)
Title: Improvements in electric signalling systems
IPC: H02J13/00
Filed: 1935-08-06
Abstract: 460,903. Electric signalling systems. STANDARD TELEPHONES & CABLES, Ltd., and McWHIRTER, E. M. S. Aug. 6, 1935, No. 22171. [Class 40 (i)] In a system for indicating the positions of a plurality of apparatus, such as circuit breakers, each apparatus controls a change-over contact 1, 2, 3, &c. which is connected to the mid-point of series connected condensers C1, C<1>1, &c. and to an individual contact of the distributer S which is adapted to run in synchronism with a similar distributer at the receiver. The contact is adapted to mark the transmitting distributer with positive or negative battery according to the position of the associated apparatus and when changed over to cause charging and discharging of the condensers through relays A, B which operate the " start " relay ST of the distributers.
Patent GB-480106-A (GB)
Title: Die head
IPC: B23G5/12
Filed: 1936-08-12
Abstract: 480,106. Die-heads. LANDIS MACHINE CO. Aug. 12, 1936, No. 22220. Convention date, June 15. [Class 83 (iii)] A thread-cutting die-head comprises a headpart, carrying slidable chasers, mounted for axial movement upon a support, a control ring slidable upon the Head and operable to move the chasers inwardly, and automatic means to release the chasers at the end of a predetermined movement arid is characterized in that means are provided for closing the die, adapted to move the control ring forwardly and simultaneously to engage lever elements fulcrumed upon the support for moving the head-part rearwardly with respect to the support. The die-head comprises, generally, a main chasercarrying head-part H, Fig. 5, mounted for limited axial movement on a support S adapted to be attached by a threaded portion 13 to the spindle of, for example, an automatic threading machine, a ring C slidable on the head and operative, through the bevel closing forks 29, to move the chasers radially on the head, and a locking ring L also slidable on the support and carrying a number of radially slidable spring-pressed latches 67 adapted to maintain the chasers 16, carried by holders 17, Fig. 10, in their closed operating position when they engage recesses 82 in the prong-like ends 80 of the head H, Fig. 5. These prongs slide in splines 77, Fig. 9, cut in the support and cross slots 86 are provided, with inclined upper faces 87 which engage the upper edges of the latches 67 to retract these when relative movement occurs between the head and support portions. An adjusting ring 45 is screwed to the closing ring and these together constitute the control ring previously referred to ; axial flanges 48, 52 on this ring underly and overlap the headportion and closing ring respectively to exclude foreign matter, and a radial flange 51 forms an abutment for a pair of springs 54 which pass freely through the closing ring (thus ensuring that the compression in the springs is not altered when the die-head is adjusted) and abut against the head H. These springs force the head and the control ring apart when the latches are released. Further springs 95, Fig. 4, may be applied to act oppositely to the springs 54 to take the weight of the parts and prevent accidental opening when the die-head is used in a vertical position. For closing the diehead a pair of rollers 119 supported on a yoke 117 are brought into engagement with a ring 106, axial movement of this ring brings it into engagement with a pair of levers 122 which are fulcrumed in the support S and at their other ends engage the heads 97 of bolts 99 which slide in the support and are screwed into the head H. The ring 106 pushes against the locking ring and moves the control ring forwardly whilst the levers are simultaneously engaged to move the bolts 99 and the head rearwardly with respect to the support. The die-head may also be modified to cut internal threads.
Patent GB-1138009-A (GB)
Title: Improvements in or relating to valve trays for fractionating or distilling columns
IPC: B01D3/16
Filed: 1967-05-12
Abstract: 1,138,009. Valves. MITSUBISHI JUKOGYO K.K. 12 May, 1967 [12 May, 1966(4)], No. 22237/67. Heading F2V. [Also in Division B1] A valved tray 2 for a distillation column has parallel, elongated slits 3 and valve-members 4 associated with each slit, the valve-members being in the form of tubes or rods, guide or travel-limiting means being provided to guide or limit vertical movement of the valvemembers. Travel-limiting means may consist of U-shaped clips attached to the valve-members and having legs which project through a slit, the lower ends of the legs being bent over so that they can engage the underside of the tray when the valve-member is lifted. Alternatively the ends of the valve-members may engage with or in flanged or slotted brackets upstanding from the tray. In a modification brackets on the tray have projecting arms which engage in the ends of tubular valve-members 4. In a further modification pairs of vertical posts at the ends of a slot guide the valve-members and short lugs may be provided at the sides of a slit so that the valve-member in its rest position is not in sealing engagement with the slit.
Patent GB-1425193-A (GB)
Title: Rotary compressors
IPC: F04C29/06
Filed: 1973-05-09
Abstract: 1425193 Rotary vane-type compressors BOC INTERNATIONAL Ltd [trading as EDWARDS HIGH VACUUM INTERNATIONAL] 6 May 1974 [9 May 1973] 22247/73 Heading F1F Means for sound insulating the compression chamber of a rotary vane-type compressor includes a barrier 20 of sound insulating material located between axially opposed surfaces of a body 8 defining the compression chamber 6 and the flange 18 of an end-plate 14 of a housing 10 in which the body 8 is mounted, these opposed surfaces being located on that side of the chamber 6 through which the rotor shaft 32 extends. The inlet and outlet ducts pass through the barrier 20, Fig. 4. A tubular extension of body 8 extends through a tubular part 16 of plate 14 and is sound insulated therefrom by a sound-insulating O-ring 52. The tubular extension of body 8 is sound-insulated from rotor shaft 32 by shaft seal 34 and soundinsulating material 36 held in place by a washer 38 and circlip 40. Shaft 32 is connected to the driveshaft 42 of electric motor 44 by a flexible coupling 46 comprising two spiders 48 non-rotatively fixed to their respective shafts and gripping between them a cruciformed coupling member 50 of rubber. A noise-reducing shroud 54 attached to plate 14 almost completely surrounds coupling 46. Bolts 24 extend through body 8, barrier 20 and flange 18, these bolts being secured by nuts 80 bearing on metal washers 82, Fig. 5, and the bolts being prevented from contacting flange 18 by extensions 84 integral with barrier 20 and rubber washers 86 under washers 82.
Patent GB-443944-A (GB)
Title: Improvements in safes or strong rooms
IPC: E05G1/00
Filed: 1935-08-07
Abstract: 443,944. Safes and strongrooms. DEARING SAFE CO., Ltd., 228, Queen Street, Auckland, New Zealand. Aug. 7, 1935, No. 22302. Convention date, Nov. 17, 1934. [Class 44] A safe or strong-room door of hollow construction has a plate 28 extending over the whole area of the door in front of the lock mechanism, the plate being carried on bolts 29 and normally pressed forward by springs 31 so as to absorb the shock of any explosive detonated in the keyhole. The hollow door has openings in its edges which register, when the door is closed, with corresponding holes leading to a hollow space within the walls of the safe, and parts 17 in the base of the safe communicate with a hollow base 14 having pressure relief vents 18 normally covered by plates 19 held against the vents by springs 21. A fireproof lining 13 may be provided in the hollow walls of the safe. The lock 24 is carried by a smaller plate 32 behind the plate 28. One of the locking bolts may have a forward projection which is engaged by a slot in the plate 28 when the latter is forced back.
Patent GB-359547-A (GB)
Title: Improvements in lift trucks
IPC: B62B3/06
Filed: 1930-07-24
Abstract: 359,547. Hand trucks. POLLAK, J. E., 20, Holborn, London.-(Barrett- Cravens Co. ; 1328, West Monroe Street, Chicago, U.S.A.) July 24, 1930, No. 22347, [Class 108 (i).] In lifting trucks of the kind in which a platform is adapted to be elevated with respect to the frame by means of the steering handle, the latter is provided with a horn adapted to move backwards and forwards horizontally, the horn being linked to an upwardly extending arm pivoted to the main frame and the arm being connected to the lifting frame. The lifting is accomplished either in one movement or by successive stages with different degrees of leverage and comprises connections between the frame and lifting platform of rotatable and non-rotatable members for lifting and holding platform wherein the rotatable members are free to rotate in one direction and held against rotation in the opposite direction. The frame comprising side members 14, 15 and a head-stock 16 has pivoted thereto a steering and lifting handle 31 and supports the lifting platform comprising members 50, 51, 52 by means of links 57, 58 and 63, 64, the latter of which together with the rear wheels 44 are journalled on the fixed rear axle 43 by means of rotatable sleeves and the links bear against a plate 56 of the platform. A horn 35 is pivoted to the steering handle and may be engaged therewith by a gravity latch 36 and a pin 80, and the horn is connected by a link 74 with a notched arm 70 in one of various positions to vary the lifting leverage. The arm 70 is connected to the platform by means of a screwed rod 81 which passes through a nut 83 fast with a ratchet wheel 84, a member 87 being provided having surfaces permitting a limited rocking movement and three-point bearing with the platform plate 90. A detent 99 is provided for the wheel 84 operated for release by a foot-lever. Lifting movement of the handle draws the platform up by means of the rod 81 while reverse movement of the handle to obtain a further lift allows the rod 81 to pass through the nut 83 by means of the latter rotating. The platform is held up at the end of successive stages and of final movement by a holding rod 113 having a piston 114 in a cylinder and passing through a fixed nut 123. The end of the rod is provided with a ratchet wheel 131 with which engages a detent 132 releasable by the same foot-lever as releases the detent 99. The end of the rod 113 is mounted in relation to the plate 90 of the platform by rocker and three-point contact means similar to that of the rod 81. On the platform being lifted rod 113 is allowed to move endwise by rotation in the nut 123 while it is prevented from rotating normally in the reverse direction and thereby holds the platform in elevated position. Release of the detents by the foot-lever allows the platform to descend against the check action of the piston 114 in the air or other fluid cylinder 115.
Patent GB-500368-A (GB)
Title: Improvements in tables with folding legs
Filed: 1937-08-14
Abstract: 500,368. Folding tables. BLOWER, A. H., and BLOWER, S. F. Aug. 14, 1937, No. 22365. [Class 52 (iii)] Folding legs C are pivoted at D on the inner sides of rails # disposed under each of the four edges of the table top A, and leg-locking members E are hinged at F to the lower edges of the rails so that they can be turned wholly on to the inner sides of the rails and when in this position engage by their ends two legs to hold them in the erect position. The locking members E comprise strips of wood and one end of each may be fitted with a spring ball E<1> or rounded bolt adapted to engage in a recess in the adjacent leg. The legs are also retained in the folded position by the locking members. The legs may fold diagonally, in which case only two locking members are necessary.
Patent GB-1335774-A (GB)
Title: Ducting for ventilation systems
IPC: F16L9/22
Filed: 1971-04-19
Abstract: 1335774 Pipe couplings; pipes SVENSKA FLAKTFABRIKEN AB 19 April 1971 [23 Feb 1970 5 Feb 1971] 22384/71 Headings F2P and F2G Pipes and pipe couplings or other structures may be constructed using a joint having male and female elements, the latter having a slot into which the male element is inserted. The slot is filled with adhesive having a virtually constant viscosity between -20‹ C. and + 80‹ C. and which is strongly adhesive due to its capillary force. The joint is strengthened by a mechanical anchorage between the elements e.g. pop rivets, self-threading screws, spot welds and spring catches. As shown in Fig. 6 a male element 39 and a female element (i.e. slot 31 defined by strips 26, 27) have bent over ends 36, 29 respectively which act as a spring catch. The joint is filled with the adhesive 35. In a similar joint between the slot 31 and element 30 a spot weld 32 may be additionally provided. Such a joint may be used to join planar or semicircular members to produce T-pieces, Figs. 2a, 2b (not shown), pipes Figs. 3a, 3b (not shown), pipe bends, Figs. 4a, 4b (not shown) and coupling pieces Fig. 5a-5e (not shown). In these coupling pieces two female elements are provided back-to-back by the use of two coaxial rings, the inner ring having a ridge or lumps to permit spot welding together of the rings.
Patent GB-446660-A (GB)
Title: Improvements in electrodes for high frequency treatment
IPC: D01H17/02
Filed: 1934-08-01
Abstract: 446,660. Electro-medical apparatus. SIEMENS - REINIGER - WERKE AKT.- GES., 31, Karlstrasse, Berlin. Aug. 1, 1934, Nos. 22451 and 22452. Convention dates, March 20 and June 15. [Class 81 (ii)] Electro-medical apparatus for treatment in condenser fields comprises a generator of very high frequency oscillations, e.g. over 3 x 10<6>, one or more metal electrodes connected to the generator and a layer, preferably more than 10 mm. thick, of solid or liquid insulating material having a dielectric constant greater than 10 covering the face of the electrode applied to the object treated. Suitable insulating materials may consist of a mixture of water and glycerine (dielectric constant 20-30); the material known as Condensa or Condensa C (dielectric constant 40-80): distilled water (dielectric constant 80) or the material known as Kerfar (dielectric constant about 100). The layer is preferably deformable, in which case liquids or powdered solids are used, enclosed in an insulating casing, e.g. of rubber, the walls of which are thin in comparison with the powder or liquid layer. Solid deformable materials, such as wax, may be used in admixture with sufficient material of higher dielectric constant, e.g. Condensa C, to give the desired dielectric constant. The mean dielectric constant of materials such as oil may be similarly increased, or by the admixture of metal powder. Various constructional forms of electrodes are described, e.g. as shown in Fig. 1, the metal electrode 1 and its attached stem 2 are covered with insulating material 3 and union between the electrode and layer of insulating material is effected by spraying the upper surface 4 of the layer 5 with metal. Alternatively, the stem 2 may be prolonged below the surface of the electrode 1 and be embedded in the insulating material 5, or the surface of the electrode in contact with the layer 5 may be ribbed or corrugated. In this case, the insulating layer may be a deformable solid. Fig. 3 shows an arrangement in which the whole of the electrode 1 and stem 2 are covered with insulating material 3 and a deformable insulating casing 7, filled with powdered solid or liquid insulating material 5, is placed between the electrode and the subject treated. In the construction shown in Fig. 6, the insulating material 5 is enclosed within a rigid container 10, the metal electrode 1 resting on the insulation. The container 10 is closed by a cover 8 secured to the stem 2. The Specification as open to inspection under Sect. 91 describes also the use of insulating materials having a dielectric constant below 10 for example, oil, wax or the materials known under the name Calan or Registered Trade Mark, " Calit," " Frequentite," or " Mycalex." This subject-matter does not appear in the Specification as accepted.
Patent GB-357698-A (GB)
Title: Improvements relating to stylus holders for sound reproducers and the like
IPC: G11B3/46
Filed: 1930-07-25
Abstract: 357,698. Gramophones. WRIGHT, A. F. J., Billet Works, Billet Road, Walthamstow, London. July 25, 1930, No. 22476. [Class 40 (ii).] A stylus holder for a gramophone sound-box, or the like comprises a member 1 slightly tapered at one end, with a milled edged collar 2 about midway of its length, and its other end tapered almost to a point. The member 1 has an axial bore 3 to receive a stylus and has two longitudinal cuts 4 at right-angles to each other. The slightly tapered end of the member 1 is adapted to fit within a conical portion 7 on the stylus bar 6 whereby the cut portions of the holder are pressed together to secure a firm grip of the stylus 8. Specification 342,100, [Group XXIII], is referred to.
Patent GB-1281661-A (GB)
Title: An improved fluid delivery nozzle
IPC: B05B1/16
Filed: 1971-04-19
Abstract: 1281661 Fire hose nozzle BFA PRODUCTS PTY Ltd 19 April 1971 [24 Feb 1970] 22487/71 Heading B2F A fire hose nozzle comprises a base portion 5 carrying a threaded stud 13 which protrudes into a jet casing 14 rotatable on the base portion and having jet apertures, e.g. 16, 18 of different dimensions, a nut 25 threaded on to the stud securing rotatable assembly of the casing on the base, and a sealing washer 22 of synthetic polymeric material between the casing and the base to render the assembly leakproof.