baber/WOPTO huggingface dataset:
Patent GB-825877-A (GB)
Title: An improved construction of clamping-nut
Inventor: WRIGHT CHARLES ALEXANDER
IPC: B24B45/00
Filed: 1956-07-05
Abstract: 825,877. Cutter-arbors. BROWN INDUSTRIES Ltd., D. July 4, 1957 [July 5, 1956], No. 20802/56. Class 83 (3). [Also in Group XXV] A tool, e.g. a hob j, is secured on an arbor b by a nut comprising a part a engaging the screwed end of the arbor, and a part c having a clamping face h and being capable of angular and rotary movements relatively to part a. Such movements are facilitated by balls f and a part-spherical end on part a which is rotated by a knurled ring n, tommy bar or hexagonal &c. end.
Patent GB-729936-A (GB)
Title: Improvements in or relating to reciprocating pumps
Inventor: MASSEY BERNARD SIDNEY
IPC: F16N25/04
Filed: 1952-08-20
Abstract: 729,936. Reciprocating pumps. BRISTOL AEROPLANE CO., Ltd. Aug. 19, 1953 [Aug. 20, 1952], No. 20947/52. Class 102 (1). A pump comprises a rotor 14, revolving within a liner 11 in a housing 12, having two bores 16, 17, within which are arranged a pump piston 22 connected to a motor piston 18. A source 33 of liquid under pressure is connected by passage 32 to ports 27, 29 and 40 in the liner 11 and a drain 35 is connected by the passage 34 to ports 28, 30 in the liner 11. A pump discharge passage 41 is provided. Ports 25, 26 are provided in the rotor on either side of the motor piston and ports 38, 39 communicate with the pump cylinder. As the rotor revolves, the ports 25, 26 register respectively with ports 27, 28 and 29, 30 to cause reciprocation of the motor piston and as the pump piston reciprocates motor piston and as the pump piston reciprocates the port 38 registers with the source of liquid through port 40 and during the discharge stroke, the port 39 registers with the discharge passage 41. A second pump piston may be connected to the other side of the piston 18. The rotor may be driven by a machine part which is lubricated by the pump. The ports may be adapted so that the pump pistons make several strokes to deliver to separate outlets during one rotation of the rotor. An adjustable stop may be provided to limit the stroke of the pistons.
Patent GB-275677-A (GB)
Title: Improvements in or relating to reaction-driven propellers
IPC: F02K7/00
Filed: 1927-08-09
Abstract: 275,677. Serrell, J. P., (Assignee of Farman, H.). Aug. 9, 1927. Radial - flow (unbladed) type; working- fluid supply. -In reaction-driven screw propellers for aviation &c., the rotor combustion chamber C is fed with fuel by a pipe A and with air by a pipe B, and a pipe K supplies additional compressed air to mix with the burnt gases flowing from the chamber C into the nozzle L, both the chamber C and the nozzle L having their longitudinal axes perpendicular to the arms or blades of the propeller.
Patent GB-683846-A (GB)
Title: Door sealing strips
Inventor: LLOYD HUGH HORTON
IPC: B60J10/08
Filed: 1950-08-25
Abstract: 683,846. Door-sealing strips. ROVER CO., Ltd. May 24, 1951 [Aug. 25, 1950], No. 21050/50. Class 20 (iii). A rubber &c. sealing strip a for doors is combined, adjacent its base, with a wavy wire b such that when an endwise or lateral force is applied the width of the wire is reduced to enable it to enter a securing groove e of dovetail or like section which it engages when the force is released. The wire may be moulded in the strip or fit in narrow transverse recesses in the base of the strip, where it is secured by a cover strip d of rubber or fabric &c. the crests of the corrugations in the wire being flush with or extending slightly beyond the sides of the strip. The grooved part e may be formed in the door &c. frame, or may be formed of a metal strip welded &c to the door. A double wire may be used consisting of two lengths of wavy wire superimposed so that the corrugations overlap.
Patent GB-222284-A (GB)
Title: Improvements in or in connection with the fastenings of doors which are held closed with pressure
IPC: E05B17/00
Filed: 1923-08-21
Abstract: 222,284. Conway, T. Aug. 21, 1923. Multiple - bolt fastenings; staples for locks.-A refrigerator and like door fastening comprises a pivoted bolt to which is pivoted a pair of vertical bolts, the bolts engaging staples so shaped that they force the door into its seating when fastened and release the door therefrom when released. The bolt 4 is pivoted at 7 to the door and has a pair of bolts 2 pivoted to it. One end of the bolt 4 engages a staple 5 with a boss B to force the door into, or away from, its seating when engaged or disengaged, and its other end forms the handle for operation. The staples 3 of the vertical bolts 2 are bevelled as shown in Fig. 4 for the same purpose. Strong springs 8 may be mounted in the staples 3 to force the bolts, and consequently the door, away from the door seating as the bolts are withdrawn. Specification 15227/86 is referred to.
Patent GB-1430633-A (GB)
Title: Electric blanket
IPC: H05B3/34
Filed: 1973-05-03
Abstract: 1430633 Electric blanket J M JOHNS 3 May 1973 21146/73 Heading H5H An electric blanket comprises a first heating element 3 substantially co-extensive with the blanket and a second heating element 16 extending over a portion only of the blanket, the element 3 being distributed so as to provide a substantially uniform temperature over the surface of the blanket when energized. The elements are controlled individually. Element 3 is secured to a woven base 2 and, as shown, element 16 is mounted on its own woven base 13. A woven top layer 31 covers both elements.
Patent GB-638310-A (GB)
Title: Apparatus for heating gases and liquids
IPC: F24H1/18
Filed: 1947-08-05
Abstract: 638,310. Heating gases and liquids. NATIONAL TANK CO. Aug. 5, 1947, No. 21236. Convention date, April 7, 1941, [Classes 64(i) and 64(iii)] Apparatus for heating gases and liquids comprises a closed tank 1 containing a liquid heat-transfer medium 40, heat-supplying element 18 and a heatabsorbing conductor 27, both disposed in the heating-chamber and submerged in the liquid therein.' A heat-insulating partition 8 is disposed between the heat-supplying element and the heat-absorbing conductor and divides the heating-chamber into upper and lower compartments 9, 10, the heat-supplying element being disposed in the lower compartment and the heatabsorbing conductor being disposed in the upper compartment. The partition 8 is spaced from the ends of the heating-chamber to form connecting passages 11, 12 between the upper and lower compartments. The heat-absorbing conductor comprises an elongated sinuous coil 28 having inlet and outlet connections 29, 30 respectively for the fluid to be heated e.g. water, oil or natural gas. When the fluid to be heated is a high pressure gas, a reducing valve may be provided at 36. The heatsupplying element 18 comprises a fire tube 19, a burner head 26 and a pair of flue gas ducts 21, connected on each side to the fire tube and leading the products of combustion to the stack 23. The heat-transfer medium (e.g. water) circulates with a thermo-syphon action from the lower compartment to the upper compartment through the passage 11 and returns to the lower compartment through the passage 12. Baffles 31 direct the heat transfer medium generally transversely over the tubes of the heat-absorbing conductor.
Patent GB-221931-A (GB)
Title: Improvements in strip feed mechanism for embossing and stamping machines and presses
IPC: B44B5/00
Filed: 1923-08-22
Abstract: 221,931. Adkins, A. A. Aug. 22, 1923. Feeding and registering webs.-In embossing and stamping machines wherein metallic leaf on a paper carrying-strip is passed between a die and a platen or bed, the strip-feeding mechanism, which is of the type comprising feed-rollers rotated intermittenly by sprocket and chain mechanism acting through a free-wheel and driven by manuallyoperated means such as a handle, includes a plunger actuated by a cam on a hand-wheel, &c., and a lever connected at one end to the plunger and at the other end to the chain which drives the feed-rollers, the other end of the chain being attached to a spring, whereby the plunger is moved towards the cam. This movement may be regulated by an adjustable stop to vary the feed as required. The shaft 52 actuating the bed 50 of the press carries a hand-wheel 6 provided with a cam 5 engaging a roller 4 on a plunger 1 sliding in a housing 2, the plunger 1 being connected by a pin 9 to one end of a rocking lever 8 pivoted on a bracket 7. The other end of the lever 8 is connected to a chain 15 which passes round a pulley 16 and a free-wheel 17 on a sleeve attached to one of the feed rollers 19 and has its other end secured to a spring 21 so that the plunger 1 is urged outwardly towards the cam. A second serrated feed roller 42 coacting with the roller 19 is mounted on a shaft 43 .adjustable in supporting arms by screws 46. When the handwheel 6 is operated in one direction to effect the impression by the die 29, the cam allows the plunger to move outwards under the influence of the spring 21 but without actuating the feed roller 19 by reason of the free-wheel 17. On reverse movement of the hand-wheel the plunger is pushed inwards by the cam, thus driving the freewheel 17 and pulling forward a length of strip 27 from the supply roll 28. The length fed may he varied by adjusting the screw 23. A spring 30, carried by an adjustable slotted plate 32, keeps the leaf away. from the edge of the die 29 whilst it is drawn forward, and the strip is guided laterally by lugs 34 carried by adjustable slotted plates 35. The plunger 1 carries a pointer 25 moving over a scale 26 to facilitate adjustment for varying the length of feed.
Patent GB-281377-A (GB)
Title: Improvements in the treatment of resins for making varnish, paints and the like
IPC: C09D101/18
Filed: 1926-08-31
Abstract: 281,377. Bennett, J. F., and Hadfield, J. Aug. 31, 1926. Paints; varnishes.-A varnish comprises a mixture of a solution of celluloid or nitro-cellulose and a solution of a base prepared by treating a resin or a resin and oil with nitric acid. Bitumen, pitch or other colouring matter, shellac, copal &c. may be added. Resins such as resin or copal may be treated with nitric acid, preferably diluted with water, the temperature of the materials being kept below 212 F. Excess of acid is neutralized by ammonia, soda or other alkali or by melting the product and exposing it to air. The product is dissolved in methylated, alcohol or other solvent. Oil such as linseed oil may be added to the resin and the mixture treated with nitric acid to produce the base.
Patent GB-966732-A (GB)
Title: Improved method of glass treatment and product
IPC: C03C3/00
Filed: 1962-06-04
Abstract: To improve the physical and chemical properties of glass, an alkali metal ion within the surface layer of a glass article is exchanged with a larger monovalent ion from an external source at an elevated temperature below the glass strain point, the glass article being formed from an alkali-zirconia-silica glass composed essentially of an alkali metal oxide, at least 5% by weight of ZrO2, silica and 0-20% by weight of other compatible glass producing ingredients. A number of examples of compositions are given. The preferred ion exchange is sodium-potassium.  Specifications 454,448, 786,951, 917,388, 966,733, 966,734 and U.S.A. Specification 2,075,446 are referred to.
Patent GB-257635-A (GB)
Title: Resilient lamp holder
IPC: H01R33/76
Filed: 1926-08-31
Abstract: 257,635. Saemann, J. Aug. 31, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Vacuum tubes.-A holder for a thermionic valve or other discharge tube is suspended within a frame of insulating material by bent springs in such a manner that shocks from any direction are absorbed, the springs forming the connection between the holder and clamps on the frame. In a valve-holder four flat springs are secured to the sockets and clamps.
Patent GB-626193-A (GB)
Title: Improvements in anaesthetic apparatus
IPC: A61M16/10
Filed: 1947-08-07
Abstract: 626,193. Anaesthetic apparatus. TALLEY, H. A. E., and TALLEY F. B. Aug. 7, 1947, Nos. 21609 and 28230. [Class 81(ii)] Anaesthetic apparatus for the mixing of gas and air which comprises a gas jet 3, a venturi-like tube 4, a conduit 2 leading to a face mask, an air inlet 14 leading to the tube 4, a valve 9 controlling a gas supply to the jet and a flexible diaphragm 13 influenced by the patient's respiration and adapted to open the gas control valve by means of a simple lever 11 during inhalation only, is characterized in that the lowered pressure caused by the passage of the gas through the jet and venturi-like tube is transmitted directly to the diaphragm in such a manner as to tend to retain the gas control valve open and thereby assist the patient's respiration. In operation, inhalation is transmitted through perforations in a double-walled tube 15 to the interior of a chamber 12, actuating the diaphragm 13 and lever 11 which opens the gas control valve against spring pressure. Flow of gas through the jet 3 produces a lowered pressure in the passage between the jet and the tube 4 and tends to retain the diaphragm in the operated position. In a modification (not shown) the air inlet valve 14 is replaced by a diaphragm-actuated valve spring- biased to a closed position and operated by the pressure of the gas in the passage leading to the jet 3.
Patent GB-1479575-A (GB)
Title: Terminating optical fibres
IPC: G02B6/38
Filed: 1976-05-25
Abstract: 1479575 Terminating optical fibre STANDARD TELEPHONES & CABLE Ltd 25 May 1976 21636/76 Heading G2J A ferrule 11 having a watch-jewel 12 to receive the end of a plastic coated optical fibre 16 is heated sufficiently to soften the plastic and the coated fibre is thus introduced as shown. The plastic coating deforms as shown and the termination is cooled. The protruding base fibre is fused, deformed into contact with the jewel and the end suitably machined.
Patent GB-1436284-A (GB)
Title: Heat-treatment apparatus for synthetic fibre yarns
IPC: D02J13/00
Filed: 1974-05-16
Abstract: 1436284 Heat transfer devices N KODAIRA 16 May 1974 21682/74 Heading F4U [Also in Division H5] Heat-treatment apparatus for synthetic fibre yarn comprises a sealed vessel 1 which has a wall 4 along which the yarn 7 is guided in grooves 5 and which contains, at its lower portion, heat exchange liquid 3. A U-shaped electrical heater 2, having its outer surface covered with a porous material 28, has its lower end portion submerged in the liquid 3. The inside of the wall 4 is provided with inclined guide plates 6 for directing the condensate 8, 9 towards the portion of the heater above the liquid 3. A separator tank 11 is connected to the upper portion of the vessel 1 by a pipe 12 having a restriction 32 and to the mid-portion of the vessel by a pipe 13. Gas impurities in the tank 11 may be removed through a purge pipe 29 or through a valve 17 leading to an evacuated reservoir tank 16. The vapour temperature in the vessel 1 may be maintained constant by a pressureresponsive switch 25 controlling the heater 2.
Patent GB-534079-A (GB)
Title: Improvements in or relating to spring suspensions for road vehicles
IPC: B60G11/08
Filed: 1939-07-26
Abstract: 534,079. Vehicle spring-suspensions. BALLAMY, L. M., and SHEEPSHANKS, R. H. July 26, 1939 No. 21722. [Class 108 (ii)] Wheels 11, 12 are supported at the ends of two transverse springs 19, 23, which are respectively fixed and pivoted at the centre to the chassis. The shackles 22 of the spring 19 are pivoted to arms 22 fixed to the axles 13 and the shackles 24 of the spring 23 are pivoted on the shackle pins 25. The arrangement is applicable with a through axle or, as shown, with a two-part axle having the inner ends of the parts pivoted to the chassis. The shackle pins may be encased in resilient sleeves. The springs 19, 23 may have different periodicities so that the tendency of the wheels to bounce is counteracted. Instead of being pivoted to the ends of the spring 19, the shackles for the spring 23 may be pivoted directly to the axle or to the hub casings. Specification 429,168, [Group XXXI], is referred to in the Provisional Specification.
Patent GB-739303-A (GB)
Title: Improvements in or relating to counting apparatus
Inventor: STURGEON JOHN ROYAL
IPC: G06M1/10
Filed: 1953-08-06
Abstract: 739,303. Counting-apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 5, 1954 [Aug. 6, 1953], No. 21761/53. Classes 106 (1) and 106 (3). An electro-mechanical counting apparatus for counting the number of times a variable, e.g. an acceleration, reaches one or more predetermined values over a period comprises switch gear having a wiper movable relatively to a series of contacts in accordance with the value of the variable and, for the value or each of the values to be counted, a ratchet and pawl operated counting device. As described, a wiper W moves in accordance with the value of the variable over contacts 1 ... 12, the contacts 3, 6, 9, 12 of which correspond to four values of the variable to be counted. Initiating coils I1 ... I4 are respectively connected between the contacts 3, 6, 9, 12 and the positive terminal of the supply. The contacts 1, 4, 7, 10 are connected through resistances R1-R4 respectively to the positive terminal and to one of the contacts of switches C1 ... C4, the other contacts of which are connected through holding coils H1 . . . H4 to the negative terminal of the supply. In operation when the wiper W reaches one of the contacts 3, 6, 9, 12, say, the contact 12, the corresponding coil 14 is energized to close the switch C4 and cause energization of the holding coil 44 whereby a pawl P is moved against the pressure of a spring S to step on a ratchet R connected to an associated counter. The switch C4 and the pawl P remain actuated until the wiper W in its return movement meets the preceding but one contact 10 to short circuit the holding coil H4.
Patent GB-700740-A (GB)
Title: Improvements relating to continuous horizontal filters
IPC: B01D33/82
Filed: 1950-09-26
Abstract: The subject-matter of this Specification is identical with that part of the subject-matter of Specification 700,681 which relates to Figs. 1, 2, 4, 5, 14, 15, 24, 25 and 26 thereof, and Figures identical with these but re-numbered, form part of this Specification, but the claims differ.
Patent GB-1359758-A (GB)
Title: Handling drums
IPC: B65D71/00
Filed: 1972-05-10
Abstract: 1359758 Load handling pallets; unstacking drums from pallets LUBRIZOL CORP 10 May 1972 21919/72 Headings B8C and B8H Apparatus for handling empty drums 11 stacked on a pallet 1 comprises a turntable 18 on which a loaded pallet may be placed and a receiving member 21 which is positioned to engage and support a stack of drums whilst a securing strap 12 is removed. The member 21 is slidably and pivotably mounted on a supporting framework 25 to move an unstrapped stack away from the pallet and then pivot through 90 degrees to deliver the drums to a conveyer for feeding to a filling machine (not shown). The pallets, Fig. 2 (not shown) comprise a deck of spaced planks (4) secured to bearers (3) with further planks (5) also secured to the bearers (3) to form a lower deck. Longitudinally extending strips (6) are secured to the upper deck to prevent rolling of the drums and hooks 10 are provided to receive opposite ends of the securing straps 12.
Patent GB-622101-A (GB)
Title: Improvements in radio location and detection arrangements
IPC: G01S1/02
Filed: 1945-08-27
Abstract: 622,101. Radiolocation. RUST, N. M., and PARTINGTON, G. E. Aug. 27, 1945, No. 22011. [Class 40 (vii)] In a frequency-modulated radar system the transmitted frequency is modulated in accordance with a linear control-wave and also in accordance with an additional recurrent waveform, so that a constant beat note is obtained only when the echo time is equal to the period of the additional waveform or an integral multiple thereof. The Figure illustrates a radar system, incorporating the invention, similar to that described in Specification 620,568. The sawtooth waveform (b) from generator 5 is distorted in 11 to a logarithmic waveform (f) which is used to modulate the triangular waveform (a). The modulated waveform (c) is used to frequency-modulate the transmitted frequency in the transmitter 6. The echo signals are mixed with signals from the transmitter in receiver 7, the output of which is applied, through the frequencyselective device 9, to a P.P.I, display 10 whose radial sweep is produced by the waveform (b) from generator 5. In order to obtain greater resolution in the range, 4000 to 5000 yards, the oscillator 13 and switch 14 are provided. The oscillator is calibrated in terms of range such that the echo time for an object at the range indicated is equal to the period of the frequency produced at that setting. With the switch 14 closed the output (g) from the oscillator provides an additional frequency control of the transmitter 6 so that the modulating waveform becomes as indicated at (h), (which corresponds to one triangular wave of the waveform (c)). If the echo time is exactly equal to the period of the waveform (g), or an integral multiple thereof, the beat produced in the receiver 7 will be constant, but, if this condition does not hold, the beat note will bear a frequencymodulation, and will not be passed by the selector 9. Consequently by use of the oscillator 13 the range of an echo indicated on the P.P.I. 10 can be measured with considerably increased accuracy. In the system illustrated the oscillator 13 is switched into circuit and adjusted to measure the range when greater accuracy is required. However, the oscillator may be ganged to the generator 5 so that the oscillator frequency at any instant corresponds with echo signal then having the required frequency shift. The invention may also be incorporated in the radar system of Specification 621,846, wherein the rate of change of transmitted frequency is maintained constant, and the frequency selected by the selecting device is varied.
Patent GB-1331564-A (GB)
Title: Process for making chromium steels
IPC: C21C7/10
Filed: 1971-04-19
Abstract: 1331564 Refining chromium steels EISENWERK GESELLSCHAFT MAXIMILIANSHUTTE 19 April 1971 [18 Feb 1970] 22047/71 Heading C7D Steel having a Cr content of 16-30 per cent with C and N in total not exceeding 0À015 per cent is produced from a crude iron melt containing 2-6 per cent C refined under reduced pressure by blowing with nitrogen-free O 2  beneath the melt surface. An inert gas such as argon, hydrogen or propane may be mixed with the O 2 ; powdered lime may also be blown in. In a preferred embodiment, the oxygen jets are each surrounded by a jacket of inert gas, e.g. propane.
Patent GB-614618-A (GB)
Title: Improvements in or relating to electric tumbler switches
IPC: H01H23/12
Filed: 1946-07-24
Abstract: 614,618. Tumbler switches. ARNOLD, C. L., DOWSETT, R. W., DUFFIELD, J. F., and M. K. ELECTRIC, Ltd. July 24, 1946, No. 22097. [Class 38 (v)] In a dead-centre tumbler switch suitable for A.C. circuits the dolly 4 is pivotally connected at 6 to an insulating contact-carrying member 8, biassed by a snap-action spring 14 acting on a pin 10, the latter being secured to the member 8 and movable along grooves 11 in the switch base. Self-aligning bridging contacts 16 are mounted in apertures 15 and held in place by springs 17 and co-operating projections 15a, 16a. A one-way switch is described with reference to Fig. 1 (not shown). Specification 532,735 is referred to.
Patent GB-170416-A (GB)
Title: Improved automatically acting protective cloth for use in boxes, kennels or like housings for domestic animals
IPC: A01K13/00
Filed: 1920-07-26
Abstract: 170,416. Moll, H. July 26, 1920. No Patent granted (Sealing fee not paid). Fittings, internal. - A protective cloth for animals is movably suspended by rings at its corners on vertical guiding rods, arranged in the boxes, kennels, and the like, so as to be maintained in a slightly stretched condition on the back of the animal and to allow of automatic adjustment as to height. In Fig. 1, the cloth 4 is shown suspended on rods 6 so arranged in a kennel that the entrance is left free. The invention is applicable to baskets for pet dogs and the like.