baber/WOPTO huggingface dataset:
Patent GB-1107173-A (GB)
Title: Improvements in or relating to carriage escapement mechanism for typewriters and the like
Inventor: SEFFNER JOACHIM
IPC: B41J19/58
Filed: 1965-03-25
Abstract: 1,107,173. Typewriters. OPTIMA BUEROMASCHINEWERK ERFURT. 25 March, 1965, No. 12608/65. Heading B6F. Letter-spacing mechanism; variable spacing arrangements; space-bar actions.-A power or hand operated typewriter is provided with an escapement mechanism for the carriage having a rack 2 biased by a spring (not shown) in direction A and co-operating with a vertically slidable detent 1 engaging with a pawl end 1a in the teeth of the rack. On depression of a type key or space bar a lever 8 articulated to the space bar rocks a bail 9 which in turn rocks a second bail 11 in a clockwise direction and a shoulder 13b on a pin 13, slidably received in an opening the bail 11 displaces the detent 1 in a downward direction out of engagement with the rack teeth. Subsequently the detent 1 slides off the shoulder 13b under the bias of spring 3 and engages with the bottom edge of the opening the pin 13, the resultant upward movement causing the detent to engage with its pawl end 1a the next tooth space of the rack. Meanwhile the moving carriage abuts the pawl end against a pivotally mounted stop 5 and the detent is retained in the engaged vertical position by abutment against a stop pin 6. On release of the space bar the bail 11 is restored and the shoulder 13b on the pin 13 which has meanwhile been displaced against the bias of a spring 14 re-enters the opening in the detent. Variable spacing is effected by adjustment of a pivotally mounted stop 17 against which the detent abuts following sliding off of the shoulder 13b. Carriage release arrangements.-Operation of a carriage release key (not shown) pivots a bail 20, having a lug 20a in engagement with a slot 1d of the detent 1, the pivoted movement disengaging the detent from the teeth of the rack 2. Back-spacing mechanism.-Depression of a back-spacing key articulated to a lever 23 (Fig. 1, not shown) causes the lever to be pulled in the direction C so that a back-spacing pawl 22 engages with a tooth in the rack and moves the carriage in a direction opposite to the arrow A, Fig. 2, the chamfered pawl end la of the detent sliding against the flank of the tooth until it springs back into the previous gap. The swing is limited by a bracket 24 pivoting about the stop pin 6 and abutting against the detent 1 with its arm 24b.
Patent GB-434344-A (GB)
Title: Improvements in water-cooled hollow rollers
IPC: B02C4/44
Filed: 1935-04-30
Abstract: 434,344. Roller mills. LEHMANN,F.B., (trading as LEHMANN, J. M., [Firm of]), 108, Frieberger Strasse, Dresden, Germany. April 30, 1935, No. 12836. [Class 59] [See also Group XIII] In a water-cooled hollow roller for grinding cocoa, &c. having an internal cooling water delivery device for distributing cooling water evenly along the length of the roller and stationary water-damming and mixing means, the cooling water delivery device is arranged to function also as the damming and mixing means and includes cooling water delivery pipes located in the path of the centrifugal water ring within the roller and connected to a common inlet. As shown the roller shell 1 is provided with an end wall 2 which may be pressed into the shell and carries the trunnion 3. A pipe 4, held in a bracket 5, extends through the trunnion and is supported in the opposite end wall. Branch pipes 6 are connected to the pipe 4 and carry baffles 7 which break up the flow of water carried round by the roller. The pipes 6 are provided with inclined perforations through which water is projected onto the roller surface. The pipes 6 may be of waved shape.
Patent GB-493565-A (GB)
Title: Improvements in tuning devices for wireless receivers
IPC: H03G3/26
Filed: 1937-05-05
Abstract: 493,565. Wireless receiving - sets. GENERAL ELECTRIC CO., Ltd., and STAFFORD, L. J. May 5, 1937, No. 12853. [Class 40 (v)] In a tuning device for a wireless receiver, the muting switch is operated by the ordinary rotation of the tuning control and is then put out of action by reverse movement of the control. A projecting arm 1 is attached to the control shaft 2 by a collar 3 which has a slipping fit on the shaft 2. When the tuning shaft 2 is rotated, the arm 1 is brought into contact with the stop 4 and this contact constitutes the muting switch. When the tuning indicator shows that the receiver has been tuned to a position slightly beyond the desired station, the receiver is then accurately tuned by reversing the control motion. The contact 1, 4 is thus broken and the muting is removed. The switch can be rendered inoperative by sliding the shaft 2 axially. The invention may be applied to the multi-speed tuning drive described in Specification 491,446, [Group XXXVI].
Patent GB-1345455-A (GB)
Title: Welding devices
IPC: B65B51/30
Filed: 1972-03-20
Abstract: 1345455 Seaming non-metallic sheet material FR HESSER MASCHINENFABRIK AG 20 March 1972 [19 March 1971] 12871/72 Heading B5K A device for transversely welding tubular thermoplastic or thermoplastic coated packaging material 22 to seal objects 25 therein, comprises two welding jaws 1, 2 biased relatively towards one another and a pressure limiter 12 between the jaw 2 and its support 10 for automatically limiting the maximum pressure applicable by the jaws independently of the separation of the jaws. As shown, the jaw 1 is attached to two parallel rods 3 movable parallel to themselves in a somewhat elliptical orbit 4. The jaw 2 is attached to a carrier 5 having at its ends sleeves 6 slidable on rods 9 attached to rods 10 parallel to the rods 3 and similarly movable in an orbit 11. Two toggle mechanisms 12 each comprise levers 13 pivoted to the carrier 5 and levers 14 pivoted thereto by bolts 15 and to a yoke 16. The distance between the yokes 16 and the rods 10 is adjustable by nuts 17 on the rods 9. Tension springs 19 act between lugs 18 on the levers 14 to urge the bolts 15 towards each other so that the jaw 2 is urged towards the jaw 1. Stop washers 20 between the carrier 5 and the rods 10 limit this movement. Stop pins 21 on the yokes 16 prevent self-locking of the toggles 12 in their dead-centre positions. A cutter 24 is provided to cut the material 22 in the centre of the welding zone 23 simultaneously with welding. If, in use, an object 25 is located in the orbit of the jaws 1, 2, the jaws will clamp the object 25 therebetween and the levers 13, 14 will pivot out against the force of the springs 19. As the bolts 15 move outwardly the clamping force exerted on the object 25 decreases. In alternative embodiments (not shown), the springs 19 are replaced by pneumatic cylinders or magnets which may be controlled by a sensor or feeler to detect the presence of an object. If the material 22 is transparent and the objects 25 opaque a photo-electric cell may be provided as detector.
Patent GB-528216-A (GB)
Title: Improvements relating to pressure gauges
IPC: G01L7/00
Filed: 1939-05-01
Abstract: 528,216. Pressure gauges. HARCOURT. B. W., and MANN, A. J. May 1, 1930, No, 12946. [Class 106 (ii)] In an elastic-diaphragm gauge, the diaphragm c transmits its movement to a short arm o on a spindle n carrying at its other end a long arm p which moves the pivoted needle g against the influence of a spring h. The spindle n is carried by a bracket q which is fixed or adjustable on a tongue r of the casing. The arms are designed so that the gauge gives equal readings for equal increments of pressure. Air under pressure is admitted through an inlet b having a non-suction valve b<SP>1</SP> and passes to a nozzle t which may be connected to a football bladder &c.
Patent GB-499095-A (GB)
Title: Improvements in crank shaft arrangements for internal combustion engines
IPC: F02B61/04
Filed: 1938-04-30
Abstract: 499,095. Driving-gear. NISSEN, H. G. April 30, 1938, No. 12966. [Class 7 (ii)] Power is transmitted from a multi-throw crank-shaft 2 at an intermediate point thereof 3 and at the same time from one end 5 of the shaft. Concentric countershafts 10, 7 driving propellers 12, 13 may be driven, as shown in Fig. 2 through spur wheels 11, 6 respectively. Alternatively, a single countershaft may carry two spur wheels meshing with pinions at the points 3 and 5 of the crank-shaft.
Patent GB-256347-A (GB)
Title: Improvements in or relating to impedance bonds for use in railway signalling systems
IPC: B61L1/18
Filed: 1925-05-19
Abstract: 256,347. Automatic Telephone Manufacturing Co., Ltd., Hudd, A. E., and Roseby, P. N. May 19, 1925. Addition to 218,826. Inductances. - Impedance bonds for use in railway signalling systems described in the parent Specification are modified by providing two parallel cores of Swedish iron rods having windings of solid copper rod wound thereon in a single helix, the magnetic circuit being completed by yokes secured to the top and bottom of the cores. One or more of the core rods 3, Fig. 1, may act as bolts to secure the yokes, the remaining core rods being machined flat and separated from the yokes by insulation 6. The ends of helices 1 of copper rod about the cores are welded or soldered together, one helix being cut at the centre and the ends led to binding posts for connection to the rails and the central point of the other helix being connected to another binding post for connection to the corresponding point of another bond across rails of the adjacent action.
Patent GB-573200-A (GB)
Title: Improvements in and relating to valves for internal combustion engines
IPC: F01L7/08
Filed: 1944-07-07
Abstract: 573,200. Rotary or oscillating valves. BRIGGS MANUFACTURING CO..July 7. 1944, No. 13007. Convention date, July 19, 1943. [Classes 7 (ii) and 7 (vi)] An internal-combustion engine particularly for aircraft has a rotary or oscillating valve 25 provided with axially spaced bearing areas 70, 71 separated by a relief area 61. The spaced bearing areas may be oil lubricated, while the relief space is filled with a carbon layer requiring no lubrication. The valve has a frustoconical body comprising the upper part of the combustion chamber, and in Fig. 1 is driven from the crank-shaft through gears 46, shaft 44 and gearing 42. The valve is urged upwardly by a spring 36. The valve body includes a cooling chamber 41 which may be filled with metallic 'sodium sealed by a plug 40 or with other cooling medium. The piston preferably has a tapered end 23a projecting into the combustion chamber. A single valve port 49 registers successively with exhaust conduit 50, intake conduit 52 and spark plug 51. The valve also has a central port 53 communicating with the outer cylinder end. The cylinder head has a passage 55 with ducts 56, 57 leading to the bearing areas and supplied with lubricating oil under pressure. The relief area may be formed by grinding the valve body eccentrically about a centre of curvature 66 on a line 64 extending radially from the leading edge 62 of port 49 and the maximum relief may be twoto five-thousandths of an inch of the exhaust passage to avoid leakage of gases at the time of firing. The relief area provides for building up of a carbon formation 72 during the running of the engine, this carbon layer providing an anti-friction bearing which assists in sealing the valve against leakage. In a modification, a relief of uniform depth is provided in the cylinder head, this relief also being filled with carbon during the running of the engine. In another form, the valve is provided with. eccentric circumferential relief 74, Fig. 7, and during continued operation of the engine wear causes the formation of a corresponding relief area 76 in the surface of an aluminium cylinder head 28. The carbon layers may be produced by means other than the running of the engine. In some cases, a series of relief areas of predetermined width may be spaced around the valve, either in the valve or head, or both.
Patent GB-1462349-A (GB)
Title: Devices for continuously removing toxic metabolites from blood
IPC: A61M1/28
Filed: 1974-01-17
Abstract: 1462349 Peritoneal dialysis with hyperfiltration HYDRONAUTICS INC (H S Hodding) 17 Jan 1974 13029/76 Divided out of 1455772 Heading B1X [Also in Division A5] A portable and wearable device for continuously removing toxic metabolites from. blood comprises means for continuously circulating a prepared solution through the peritoneal cavity to draw toxic metabolites from the blood across the peritoneal membranes and into the fluid in the cavity forming peritoneal fluid, filtration means comprising a plurality of membranes with hyperfiltration characteristics for removing the toxic substances from the peritoneal fluid, means for continuously conveying the peritoneal fluid from the peritoneal cavity to the filtration means, means for pressurising the peritoneal fluid conveyed to the membranes to provide a pressure differential across the membranes, means for continuously recycling purified filtrate from the filtration means back to the peritoneal cavity, and means for reconstituting the recycled peritoneal fluid to make it suitable for re-use in the peritoneal cavity. As shown, dialysis fluid is withdrawn from the peritoneum and pumped through filter unit 210 containing a hyperfiltration membrane 212. Purified fluid is withdrawn from the unit by line 218 and returned to the peritoneum. Make-up solution may be added to the outlet side of the filter from reservoir 230.
Patent GB-408814-A (GB)
Title: Improvements in and relating to electrostatic precipitation devices
IPC: B03C3/74
Filed: 1933-05-04
Abstract: <PICT:0408814/III/1> In electrical precipitation apparatus, the precipitation electrodes are cleaned by members which are in continuous contact with the electrode, and are flexible and elastic in the direction in which they bear on the electrode.  Relative movement occurs between the electrode and the cleaning member, which is mounted so as to introduce only small frictional losses.  In the arrangement shown in Fig. 1, disc-like electrodes 19 are cleaned by members 20 in the form of flexible strips which are threaded at one end over the spindle 23 and bear with their faces against the surfaces of the electrodes.  They are kept in position by springs 21 positioned by pins 22 on the strips.  A cylindrical electrode may be cleaned by a flexible metallic strip which is helically wound and bears against the internal face of the electrode, either the electrode or the cleaning member being rotated.  The Specification as open to inspection under Sect. 91 comprises also electrical precipitation apparatus of the type described combined with a fan for passing the air to be cleaned between the electrodes.  The motor driving the fan may also actuate a rotary rectifier for supplying high tension current to the electrodes. The discharge electrodes may also be provided with cleaning member, and may be in the form of a plane helix.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1209507-A (GB)
Title: An improved device for preheating scrap iron
IPC: C21C5/56
Filed: 1968-03-19
Abstract: 1,209,507. Preheating scrap metal. CHRISTIANA SPIGERVERK, [trading as INGENIOR GUNNAR SCHJELDERUP INDUSTRIOVNER], 19 March, 1968 [30 May, 1967], No, 13173/68. Heading F4B. A charging bucket for preheating scrap iron via burners (not shown) mounted in a removable lid 6 has the inner surface of its wall 1 cooled by air which is directed downwardly through an annular channel 11 formed between the wall 1 and a cylindrical baffle 10 spaced therefrom. Air is supplied through a channel 7 in the lid 6 to an annular channel 8 which communicates with the channel 11 via an annular slot 9. A plurality of evenly spaced holes or nozzles may be used instead of the slot 9. The bottom of the bucket comprises two halves 2, 3 supported on pivots 4, 5 respectively.
Patent GB-831012-A (GB)
Title: Improvements in inking rolls
IPC: B41N7/06
Filed: 1957-04-25
Abstract: An inking roll comprises a central rod covered with a layer of non-porous polyurethane material comprising the reaction product of solely an alkyd polyester and an organic polyisocyanate, either the polyester or the polyisocyanate having an average number of reactive hydroxyl or isocyanate groups, respectively, greater than 2.0 per molecule, said polyurethane material having a Shore "A" hardness of from 5 to 35 and being free of any plasticizer for the polyurethane. Such a roll can be prepared by pouring into a cylindrical mould containing a centrally disposed rod a liquid mixture comprising an alkyd polyester having an average number of reactive alcoholic hydroxyl groups equal to or greater than 2.0 per molecule and an organic polyisocyanate, the ratio of isocyanate to hydroxyl groups not exceeding 1.0, the molecular weight of the polyester being from 1500 to 3000 and the equivalent weight being from 500 to 1200 and causing the polyester and polyisocyanate to react at a temperature not exceeding 150 DEG  C. to form a cross-linked polyurethane inking roll, the process being carried out in the absence of any plasticizer for the polyurethane, the polyisocyanate having an average number of reactive isocyanate groups greater than 2.0 per molecule at least when the average number of reactive alcoholic hydroxyl groups of the alkyd polyester is not greater than 2.0 per molecule.  In the examples the polyester is an adipic acid/diethylene glycol/trimethylolmethane (or ethane) reaction product and is reacted with a mixture of 2,4- and 2,6-tolylene diisocyanates to form the polyurethane roller.
Patent GB-133015-A (GB)
IPC: G03B9/58
Abstract: 133,015. Friedmann, D. Sept. 21, 1918, [Convention date]. Shutters.-A shutter release comprises a casing 1 adapted to be attached directly to the shutter casing and containing driving mechanism, the driving mechanism being connected to a member 8 passing through the aperture by which the casing 1 is secured to the shutter casing and directly operating the shutter mechanism. As shown, the casing 1 is connected to the shutter casing by a tube 9 rotatably mounted in a socket on the casing 1, and the member 8 consists of a wire. The tube 9 may be rigid or flexible and may be immovably attached to the casing 1. The driving mechanism, after being wound up, may rotate a pinion 3 to actuate a rack bar 4 bearing a signal disk 7, as shown in Fig. 1, or may rotate a disk 12 to which is pivoted at x a holder 13 secured to the wire 8, as shown in Fig. 2. If the tube 9 is flexible, a support comprising a bar having clips at each end, or comprising two relatively adjustable members 16, 17, Fig. 5, having clips 15 may be provided to hold it in position.
Patent GB-566551-A (GB)
Title: Improvements in apparatus for amplifying small electrical currents
IPC: H03F3/40
Filed: 1943-08-16
Abstract: 566,551. Converting. GRAVES, A., DAWES, T. J., and ALLTOOLS, Ltd. Aug. 16, 1943, No. 13311. [Class 38 (ii)] [Also in Group XXXVI] Small direct currents, derived from a source such as a thermo-couple 28, are chopped into pulsating current suitable for amplification by an A.C. amplifier 30 by means of a resistance 26 of the carbon microphone type, the vibrating element of which is driven by a coil 25 energized by A.C. derived from a tuning-fork oscillation generator 10 ... 18, the output of which may be amplified by a thermionic amplifier 19. Zero error at the indicating instrument 31 due to the effects of external temperature changes on the thermo-couple 28 may be corrected by adjustment of a tapping on a resistance network R, R1 associated with the circuit of the thermo-couple.
Patent GB-310665-A (GB)
Title: Improvements in universal rolling mills
IPC: B21B17/14
Filed: 1928-05-05
Abstract: 310,665. Stiiting, H. May 5, 1928. Rolling. - In universal rolling mills the shaft of each roll c is supported in an adjustable bearing block having a stem b and an auxiliary stem f, slidable in fixed parts to adjust the pass, the end of the stem f being sloped at 45‹ to bear against and move with the similar stem of the next roll, the complete arrangement forming a closed circuit which prevents deflection of the bearing in every position of adjustment. The bearing block may have guide box parts secured to and moving with them. The roll c is segmental and oscillates.
Patent GB-543468-A (GB)
Title: Improvements in or relating to the reduction of aluminium and like metals
IPC: C22B21/00
Filed: 1940-08-23
Abstract: 543,468. Distilling metals; purifying argon. GENTIL. H. L., and ALLOY PROCESSES, Ltd. Aug. 23, 1940, No. 13394. Drawings to Specification. [Class 82 (i)] [Also in Groups III and XXVIII] Volatilizable metals other than magnesium, particularly aluminium, are distilled and condensed under reduced pressure by continuously admitting a neutral gas such as argon to the zone of evaporation, carrying the vapours by the gas stream to the zone of condensation, and continuously withdrawing the neutral gas from the condenser. The reduced pressure may be less than 10 mm. of mercury. Aluminium may be distilled from an iron-silicon-aluminium alloy which may have been produced as described in Specification 532,115. The argon may be used cyclically, the impure argon withdrawn from the condenser being returned to a liquid air plant. The neon, oxygen, and nitrogen from this plant may be separately used; the nitrogen may be brought into contact in a suitable furnace with aluminous material, coke, and a catalyst for the production of aluminium nitride which may be treated with steam for the production of alumina, from which the iron-silicon-aluminium alloy may be obtained, and of ammonia which can be utilized as such or converted into nitric acid or ammonium nitrate by means of the oxygen from the liquid air plant. Specification 543,399 also is referred to.
Patent GB-133995-A (GB)
IPC: B23K9/10
Abstract: 133,995. Crichton, J. Oct. 11, 1918. Heating by electricity.-When a plurality of are-welding circuits are fed from the same constant-voltage D.C. generator, a high inductance is included in each of the welding-circuits in order to prevent sudden fluctuations of current. The inductances preferably have. rectangular cores with small adjustable air-gaps. In an example, each inductance consists of two windings which can be connected in series or parallel. In the former case, the inductance is 0.08 henry and the resistance 0.08 ohm. Specification 113,293, [Class 35, Dynamo-electric generators &c.], is referred to.
Patent GB-122370-A (GB)
Title: Improvement in the Manufacture of Armour Protective Plating.
Inventor: WILLIAMS WILLIAM ARTHUR
IPC: F41H5/04
Filed: 1918-08-19
Abstract: 122,370. Williams, W.A. Aug. 19, 1918. Armour-plating.-Armour-plating of the kind consisting of alternate plates of metal and rubber or other equivalent elastic material has the rubber on the partition plates spaced to afford room for deformation. A form of armour plate is shown in Fig. 2, consisting of face plates a, b separated by a partition plate c having rubber ribs d. Fig. 5 shows a form having two partition plates c separated by a plain central plate e.
Patent GB-482989-A (GB)
Title: Improvements in valves
IPC: F16K15/12
Filed: 1937-05-11
Abstract: 482,989. Non-return valves. RICHARDSON, M. F. May 11, 1937, No. 13446. [Class 135] A valve comprises a ported seat 1, a valve disc 16 and a spider-like stop-structure 9. The stop has a stern 7 for attachment to the seat, the valve spring 29 being arranged about the stern. The stop structure also comprises radiating portions 24 of inverted U-shape, which merge at their outer ends into an annular guard ring 25, and at their inner ends into tapering ribs 28 forming an abutment shoulder for securing the stop to the seat, thus providing guide means for the valve disc, whereby a streamlined flow is obtained as indicated by the arrows. As shown, the ribs 28 are formed partly on a detachable guide member 26, the arms of which are aligned with the ribs. In a modified form, the guide member is solid with the spider.