baber/WOPTO huggingface dataset:
Patent GB-1280977-A (GB)
Title: Optical projection device
Inventor: SHIPSEY RAYMOND HENRY
IPC: G03B21/132
Filed: 1970-04-15
Abstract: 1280977 Optical projections CHARLES FRANK Ltd 19 April 1971 [15 April 1970] 17850/70 Heading G2A The projector 10 includes two lamps 13, 16, fan 16A, pivotable mirror 20, Fresnel lens 12, objective lens 17, a support 14 carrying an overhead lens system (not shown) and a screen (not shown) on to which images passing through the lens 17 or overhead lens are projected. As shown plate 8 masks the lens 12. This plate carries an opaque object on to which light from lamp 16 falls and is reflected by the mirror 20 through lens 17 to the screen. When the plate 8 is removed and mirror 20 retracted to the position shown by the dotted line lamp 13 illuminates information on transparent sheet 9 which can transfer between two rollers (not shown) on either side of the lens 12 and the image projected by the overhead lens to the screen. Arm 21 has notches 21A and associated micro-switches (not shown) corresponding to the two described positions of the mirror 20 in which the required lamp only is illuminated. A third intermediate notch is provided in which the lamps 13, 16 are both illuminated at low power to prevent current surging in the cold bulb filaments. In a modification the plate 8 may be apertured and the Fresnel lens 12 made removable so that bulky opaque objects can be supported by the apertured plate and episcopically projected through lens 17 as already described.
Patent GB-710420-A (GB)
Title: Improvements in or relating to pesticides
IPC: A01N25/08
Filed: 1951-07-27
Abstract: An insecticidal preparation is in the form of hard granules which are readily disintegrated and dispersed in water and comprises parathion (o, o-diethyl o-o-nitrophenyl thiophospate), resinous condensed sulphite cellulose lye and an inert powder. The sulphite cellulose is employed as binding agent and may contain urea if desired.  China clay or a mixture with Fuller's earth may be used as inert powder.  A preferred composition comprises by weight 4 to 10 per cent of condensed sulphite p  cellulose lye, 15 to 25 per cent of crude 75 per cent parathion and inert powder to make 100 per cent.  The granules may be produced by passing a paste containing the required ingredients and of a suitable consistency through a wire gauze under the action of scraper blades and drying.  The wire gauze is preferably not greater than 5 mesh and not smaller than 20 mesh B.S.S.  A paste of suitable consistency may be obtained by using as the liquid medium an aqueous solution of Goulac containing equal parts of Goulac and water.
Patent GB-1028931-A (GB)
Title: Improvements in or relating to machinery guards
IPC: F16P1/02
Filed: 1961-05-17
Abstract: 1,028,931. Machinery guards. H C. ROTHERY. Aug. 16, 1962 [May 17, 1961], No. 17924/61. Heading F2J. [Also in Division E2] In a machinery guard, particularly for agricultural machinery, a dimensionally adjustable frame is adapted for removable fitment to a machine, is composed of adjustably interconnected parts, and has releasable fastening means by which a wire mesh or perforate cover is removably fitted thereto. In Fig. 1 (Complete) a strip metal frame comprises large and small U-shaped end members 12, 13 and intermediate side members 14, 15. The large end member has alternative screw holes 23 for overlapping fitment thereof, at different positions, to the side members or directly to the small end member. Guard mounting brackets 19 are adjustable with respect to the guard by means of slots 19a in the brackets and alternative screw holes 12a, 13a in the end members. A shaped wire mesh cover 6<SP>1</SP> is secured by washers 17 and wing nuts 18 engaging screws 16 secured to the frame members. In Figs. 1, 2 (Provisional) (not shown), a three-sided, roughly pear-shaped (for chain- and-sprocket gearing) or, as shown, rectangular frame comprises rods 1-4 and screwed mounting arms 7 clamped together at 5. Each clamp 5 comprises a pair of washers 5a welded at diametrically opposite positions to a square nut 5b and to the end of one of the mounting arms 7. A screw 8 in the nut 5b is tightened to clamp together one frame rod, which passes through one or both washers, and another frame rod which is inserted at right angles between the first rod and the square nut 5b. A rectangle of wire meshing 6 slit at each corner for bending over end flaps 6a, 6b is attached to the clamps under the heads of screws 8. Each'arm 7 has a pair of nuts 9, 10 by which a bracket strip having alternative bolt holes is axially and circumferentially adjustably secured thereto. This embodiment may be produced in kit form. If desired, the surplus ends of the frame rods and arms may be cut off.
Patent GB-573871-A (GB)
Title: Improvements in and relating to air cleaning devices
IPC: F02M35/026
Filed: 1942-12-18
Abstract: 573,871. Air filters. LEYLAND MOTORS, Ltd. and TATTERSALL, N. Dec. 18, 1942, No. 18006. [Class 8(ii)] An air filter comprises an oil bath on which the air is directed through the space between baffles 12, 14, the passage between them being gradually constricted near the oil surface, e.g., by a flared skirt 15; dust is deposited on the oil, and the partly cleaned air rises and passes through a vertical annular labyrinth 13 which collects entrained dusty. oil and allows it to be drained back into the oil bath, any oil which is carried through the labyrinth being removed by a perforated single or multiple screen 25, and the air passing to the lateral outlet 4. A baffle 28 screens the upflowing air from the oil draining down. An internal dome 27 gives an even airflow. The lateral air inlet 3 is provided with a hinged flap 6 which can close the mouth of inlet 3 and allow 'inlet of air through openings in the top of the inlet. Flanges 5, 10 provide an attachment to a bulkhead, from either side of which the air can thus be drawn.
Patent GB-1197031-A (GB)
Title: The Treatment of Hair
Inventor: ABEGG JEAN-LOUIS
IPC: C07C271/16
Filed: 1967-04-19
Abstract: 1,197,031. Hair - treating compositions. L'OREAL. 19 April, 1967- [19 April, 1966], No. 18072/67. Heading C3R. [Also in Division D1] A composition used in the treatment of hair comprises (1) at least one methylolated compound containing a group of the formula in which R<SP>1</SP> is a hydrogen atom or a C 1-5  alkyl radical, E is a radical of the formula or the formula  in which R<SP>1</SP>V is a divalent radical, and R is a hydrogen atom or a C 1-6  alkyl or a hydroxyalkyl or alkoxyalkyl radical or a radical terminated by a radical of the formula in which R<SP>111</SP> is an alkoxy radical, or when E represents a radical of the formula R, together with E and the adjacent nitrogen atom form a heterocyclic ring containing an additional nitrogen atom which is adjacent E, and (2) at least one nitrogen-containing compound having a structure similar to that of the methylolated compound except that all the -CH 2 OR<SP>1</SP> radicals attached to nitrogen atoms are replaced by hydrogen atoms or an acid addition salt thereof. The composition may contain an acid polymerization catalyst, e.g. citric, acetic, lactic, phosphoric or sulphuric acid or sodium acid phosphate. The methylolated compound may be monomethylol urea, dimethylol urea, monomethylol thiourea, dimethylol thiourea, trimethylol melamine, monomethylol dicyandiamide, bismethoxymethylurea, monomethylol dimethyl hydantoin, monomethylol ethyleneurea, dimethylol ethylene thiourea, monomethylol guanidine, ethyl monomethylolcarbamate, N,N<SP>1</SP> - dimethylol - (2 - methyl - 2 - propyl) propylenebis-carbamate, dimethylol ethyl methylenebis - carbamate, dimethylol succinamide, dimethylol adipamide, N,N - diethyl - N<SP>1</SP>- methylolurea, dimethylol ethyleneurea, dimethylol ethyl carbamate, tetramethylol acetylenediurea or monomethylol ethylene thiourea, and the nitrogen containing compound may be urea, melamine, dicyandiamide, N,N- diethylurea, ethylene urea, isopropyl carbamate, dimethyl hydantoin, ethylene thiourea, guanidine carbonate or succinamide. The composition may comprise a nitrogen containing compound mixed with the methylolated derivative of the same nitrogen-containing compound. The composition may be in the form of an aqueous or aqueous-alcoholic solution, jelly, cream or aerosol and may also contain surface active agents, foaming agents, dyestuffs and perfumes, e.g. cetyl trimethyl ammonium bromide, a compound having the formula in which R is an alkyl radical predominantly of 12-14 carbon atoms derived from the fatty acids of copra and violet external DC No. 2.
Patent GB-273906-A (GB)
Title: Improvements in lifting trucks
IPC: B62B3/06
Filed: 1926-07-20
Abstract: 273,906. Croad, A. K., (Stuebing-Cowan Co.). July 20,1926. Hand-trucks. - Relates to lifting-trucks in which a movable elevating frame 6 is actuated from the steering-lever 19 and the lifting- mechanism is engageable by elements on the steering-lever regardless of the lateral position of the latter. According to the invention the steering lever is hinged to a steering-head 7, Fig. 4, rotatable in a cross-member or yoke 8 and carries a laterally displaceable ball-member 21 engageable with a socket 22 carried by a tension lifting-link or yoke 15, the downwardly extending limbs of which are pivoted at 16 to extensions of the links 12 connecting the fixed and movable frames 5, 6 respectively. The socket 22 is normally held in a central position by mounting it on a rotatable pin 24 influenced by a spring 26, but sufficient deviction is permissible for obtaining a correct engagement with the ball 21. In the engaging position the ball 21 is located directly above the axis of the steering-hand 7, thus rendering the engagement independent of the external position of the steering-lever 19, and the yoke 15 is lifted either by a handle 30, or by a foot-pedal 31 or by operation of a lever 34, preferably foot-operated. The rear end of this lever is connected to the yoke 15 by a slotted link 38 giving a lost-motion connection, and is provided with a hook 37 adapted to engage a hook 35 on a cross-bar 36 on the movable frame 6 to lock the latter in the raised position. Owing to the provision of the slotted link 38 and pin 39, the lever 34 can be operated to release the hooks 37, 35 when the frame 6 is in the raised position. In order to allow the ball 21 and socket 22 to be completely disengaged by a slight backward movement of the lever 19 after the frame 6 has been raised and locked, spring plungers 45, Fig. 5, carried by the yoke 8 may be arranged to be compressed during the lifting movement and then, by pressing upon opposed bosses 47, to give a slight rearward movement to the yoke 15 when the bail 21 and socket 22 have been given an initial' separation.
Patent GB-516072-A (GB)
Title: Improvements in or relating to dry shavers
IPC: B26B19/04
Filed: 1938-06-20
Abstract: 516,072. Dry shavers. AMERICAN SAFETY RAZOR CORPORATION. June 20, 1938, No. 18240. Convention date, June 22, 1937. [Class 131] The outer shear plate A of a'dry shaver has two or more slotted cutter parts 20, separated by a depressed portion 14, the reciprocating cutter B. being correspondingly shaped with two or more slotted parts 22. Spring- pressed cups 42, urge the cutting areas into contact, other parts being separated by a clearance. The two sets of slots on opposite sides of the depression 14 may have different characteristics; thus, one set may be designed for coarse shaving and the other for close shaving, or the slots of the two sets may be staggered, oi of different widths and differently spaced. The angular formation of the shear plate and cutter shown in Fig. 4 may be replaced by a curved formation. Figs. 6 and 7 show a modification with two sets of sheai plate cutting teeth 63 co-operating with two sets of teeth 80 on a U-shaped reciprocating cutter G, the teeth 80 having projecting flared tips To remove the cutter G, the shear plate is swung about a pivot at one end. Reference has been directed by the Comptroller to Specification 507,758.
Patent GB-707467-A (GB)
Title: Apparatus for feeding magnetic sheet material
Inventor: FOWLER ALEXANDER
IPC: B65G59/04
Filed: 1951-08-01
Abstract: 707,467. Feeding sheets. HERCULES ELECTRIC & MANUFACTURING CO., Inc. Aug. 1, 1951, No. 18256/51. Class 100 (1) Apparatus for separating the end (or top) paramagnetic sheet from a stack of paramagnetic sheets includes means for subjecting the stack to a magnetic field and means for relatively gradually increasing the strength of the field as a function of time until the end (or top) sheet has been moved away (or raised) a desired distance. As shown, the construction of the apparatus is the same as that described in Specification 700,130, the coil 16, however, being gradually energized until the top sheet has been separated and contacts the roller 24. The magnetic feed roller 24 is continuously energized on closure of a main switch 62 as is a motor 88 which drives through a reduction gear 87 a one-revolution clutch 86 which operates a variable impedance 80 energized through lines 82, 84 on closure of switch 62 and energizes the coil 16 through a normally closed contact 106 of a relay 98. The one-revolution clutch operates the variable impedance 80 so that the coil 16 is gradually energized causing the sheets to separate, the top one of which contacts a feeler 44 and roller 24 and closes a switch 46 to energize the relay coil 112. Contact 106 is thereby broken de-energizing the coil 16 and contact 96 is broken de-energizing the one-revolution clutch 86. When switches 80 and 46 are again broken the cycle of operations restarts. To ensure that the trailing edge of the sheet is clear of the roller 24 before the coil 16 is re-energized a second feeler 48 and switch 80 are provided or the relay 98 may be a time-delay relay. In a modification the growth of current may be controlled by a thyratron the time of firing of the thyratron being progressively varied. A thyratron may also be employed to energize the feed roller only slightly when the sheet first makes contact with it and coil 16 is de-energized, then more strongly when feeding begins, and finally to de-energize it completely when coil 16 is re-energized. A further thyratron may be employed to cause rotation of the roller 24, which may be stationary during the energization of the coil 16, either by energizing a magnetic clutch 26 and allowing a driving motor 28 to rotate continuously or by eliminating the clutch 26 and energizing the motor 28 when required. If no sheet is separated the coil 16 may be de-energized after a predetermined time interval. If desired the sheets may be supported on edge.
Patent GB-1158541-A (GB)
Title: Improvements in or relating to Lawnmowing Machines
Inventor: MARTIN DEREK JOHN
IPC: A01D34/695
Filed: 1965-04-30
Abstract: 1,158,541. Air cushion vehicles. QUALCAST Ltd. 27 July, 1966 [30 April, 1965], No. 18270/65. Heading B7K. [Also in Division A1] A rotary-scythe lawnmower is partly supported on an air-cushion produced by a fan coaxial with the rotary-scythe and partly on its own wheels or skids. In one form (Fig. I, not shown) the machine has a downwardly-open easing accommodating an impeller and rotaryscythe blade both mounted on a single vertical drive-shaft projecting downwardly from an electric motor carried on the top of the casing. Ground-wheels are carried by leaf-springs within the casing and thumbscrews, projecting through the top of the casing, bear on the springs to adjust the height of the ground-wheels. In Fig. 2, a pair of ground-wheels 13 is mounted at the front of the casing which is divided internally to provide a rearwardly-extending duct 15 for the air from the impeller 3 to support the rear of the machine. Air-intake slots 16 are provided on top of the casing. The motor 2 may be either electric or internal combustion, and the wheels may also be driven. The air-cushion provides approximately 80% of the support.
Patent GB-1350366-A (GB)
Title: Angular position detector using magnetic elements
IPC: F02D35/00
Filed: 1972-04-20
Abstract: 1350366 Magnetic position sensor NISSAN MOTOR CO Ltd 20 April 1971 [8 Nov 1971] 18375/72 Heading GIN A sensor for determining the angular position of a shaft 20 comprises a pair of magnets 14, 141 joined top and bottom by a pair of plates 12, 16, of magnetic material, as shown, the mag- . netic flux paths closing through the shaft 20 via a portion 20a of reduced cross-section. A pair of magnetically sensitive elements such as magnetically sensitive resistors, magneto-diodes or Hall effect devices are disposed on the plate 12, and the concentration of flux passing through these elements due to the end 20a varies from one to the other as the shaft rotates. The two elements are series connected between a supply voltage Fig.4 (not shown), the voltage of the junction varying with shaft angle. A modified arrangement Fig.4 (not shown) is disclosed wherein a non magnetic portion at the end of a non magnetic shaft effects the non uniform flux distribution. The arrangement is suitable for a throttle valve shaft.
Patent GB-1420025-A (GB)
Title: Blind rivet with recessed expanding head
IPC: F16B19/10
Filed: 1973-04-17
Abstract: 1420025 Riveting OLYMPIC FASTENING SYSTEMS Inc 17 April 1973 [17 April 1972] 18464/73 Heading B3U [Also in Division F2] A blind rivet 10 comprises a sleeve 13 having a head 21, and a setting pin 17 having a first section 27 within the sleeve, a second section 18 to be engaged by a tool (22), Fig. 3 (not shown), to draw the pin through the sleeve, and an expanding head 19 having a taper 31 of uniform hardness and ductility, joined to the section 27 by a shoulder 29 and extending initially beyond the end 20 of the sleeve, the sleeve having an internal stop shoulder 37 for engaging the shoulder 29 after the pin has been drawn through the sleeve, and a recess 41 extending into the expanding head 19 so that an annular wall 43 around the recess collapses inwardly when the pin is drawn through the sleeve to expand the end 20 until shoulder 29 engages the stop shoulder 37 whereupon the second section 18 and part of the first section 27 break away at groove 28. A crown 24 integral with the head 21 can then be deformed into a groove 25 in the pin to lock the pin in the sleeve. The recess 41 may be cylindrical (as in Fig. 2), conical (Fig. 7, not shown), or conical with an inturned annular flange (Fig. 8, not shown). The expanding head 19 may as in Fig. 2 have a single taper 31 or may (as in Fig. 6, not shown) have a leading tapered portion (47) more sharply tapering than a trailing tapered portion (48). The sleeve and setting pin are preferably of aluminium with the pin being harder than the sleeve. The shoulder 29 may be harder than the remainder of the setting pin.
Patent GB-310233-A (GB)
Title: A new or improved method of and means for preventing piston slap, in internal combustion engines
IPC: F16J1/06
Filed: 1928-06-26
Abstract: 310,233. Oubridge, W. A. June 26, 1928. Pistons, balancing laterally. -Piston slap is prevented by fitting to the piston, in addition to the ordinary packing rings, split guide rings c so shaped or waved that parts c<2> of the rings bear on the bottom of the groove in the piston while other parts c<1> bear on the cylinder walls.
Patent GB-331673-A (GB)
Title: Improvements in rotary furnaces more particularly adapted for low temperature distillation
IPC: C10B1/10
Filed: 1929-06-17
Abstract: 331,673. Kohlenveredlung Akt.-Ges., and Geissen, C. June. 17, 1929. Rotary furnaces. - The interior of a rotary furnace for low temperature distillation is filled with brickwork shaped and arranged to provide a large number of parallel passages 6, 7 for the materials under treatment and the heating gases. The bricks may be square with their corners cut away, as shown in Fig. 3, so that passages of circular cross section are formed at the meeting points of every four bricks, or each brick may have a central hole 20 and peripheral grooves 21, as shown in Fig. 4. All the passages may convey both materials and heating gases, but where adjacent passages 6, 7 convey materials and heating gases respectively, as indicated in Fig. 3, tubes 8, 8<1> are arranged as extensions of the passages 6, and their outer ends open into casings 12, 13 for the supply and discharge of the material. The gaseous products are withdrawn through the connection 15, and the heating gases are supplied and exhausted through peripheral openings 10<1>, 10 in the extensions 17, 18 of the drum 3. Inert gas, steam, or cleaned and reheated distillation gases may be supplied to the passages 6 to act as heating and scavenging gases. The passages 7 may be fired by oil or other burners, or combustion mav be effected in a central flue, which communicates with the surrounding passages 7 through a chamber at one end.
Patent GB-454917-A (GB)
Title: Improvements in driving gear for domestic wringing and mangling machines
IPC: D06F45/00
Filed: 1935-01-05
Abstract: 454,917. Hand cranks. SUMMERSCALES, W. H. G., HOLMES, W., and HOLGATE, B. R. (trading as SUMMERSCALES SONS, W. & S.), Keighley, Yorkshire. Jan. 5, 1935, No. 18596/36. Divided out of 453,595, [Group VIII]. [Class 136 (ii)] In order to enable a detachable hand-crank for wringing and mangling machines to be placed in an inoperative position by reversing it on its shaft, the boss w<1> of the crank 10 is provided with a sliding latch 12, Fig. 3, adapted to be engaged by pressure of a spring 12a in an annular groove 13 in the shaft 11 and to be withdrawn therefrom by a hand-actuated sliding bolt 12b, the boss w<1> also having a projection w to engage a notch 7a in a member 7 on the shaft. On disengaging the latch 12, the crank may be detached and reversed on the shaft, with another projection w<2> in engagement with the notch 7<a>, the crank being then prevented from rotating by its handle coming into contact with the frame of the machine. In the operative position of the crank, a further projection w<3> opposite to the projection w also engages the member 7. According to the Provisional Specification, a spring-urged ball catch may be used for retaining the crank on the shaft.