baber/WOPTO huggingface dataset:
Patent GB-941133-A (GB)
Title: Improvements in or relating to cutting heads for dry-shaving apparatus
IPC: B26B19/14
Filed: 1960-02-17
Abstract: 941,133. Dry shavers. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 17, 1960 [Feb. 20, 1959], No. 5626/60. Heading B4B. In a cutting head for a dry shaver, comprising an apertured shear plate 1 and a rotatable cutting member 4 guided in an annular groove 3 in the shear plate, rolling-off of the cutting member from the guide surface or surfaces of the cutting plate is prevented, in order to avoid unpleasant noise by forming a guide surface or one of the guide surfaces on the cutting member or on the shear plate in a form deviating eccentrically from circular. As shown, equally spaced blades 7 of the cutting member have cutting edges 3 co-operating with apertures 2 in the shear plate, the cutting member being rotated by a shaft 8 having a flattened part 9, engaging a corresponding opening 10 in the cutting member, and a squared part 13 fitting in a square axial socket in a gear-wheel 14 and slidable under the action of the spring 15 to urge the cutting member towards the cutting plate. The cutting member is guided by cooperation of the faces 5 of the blades with the wall 16 of the groove which, as shown in Fig. 2, deviates from the circular shape shown in broken line at 17, and the outer faces of the blades run along the outer wall 20 of the groove when the inner faces of the blades engage the deviated part of the guide surface 16. In a modification, shown in Fig. 3, the inner faces 22, 23 of the blades 7 are ground down so that the outer faces 25, 26 engage the wall 20 of the groove throughout its circumference and scrape it clean of cut hair.
Patent GB-197447-A (GB)
Title: Improvements in mudguards for the wheels of motor cycles or the like
IPC: B62J15/00
Filed: 1922-02-25
Abstract: 197,447. Barnes, F. W. Feb. 25, 1922. Mud-guards.-An auxiliary mud-guard for motor-cycles &c. comprises two triangular shaped portions of material in one piece united at their bases, adapted to overlie the ordinary front mudguard extension, and attached by laces m at the centre of the wheel, and a hook f and laces g to the fork &c. It is provided with ribs o on its internal faces, and the front rib merges into a transverse rib p which almost touches the wheel. A hood q catches mud blown back from the front edge of the mud-guard, which may have apertures leading to the channels between the ribs o ; the central part b of the auxiliary mud-guard may be extended and turned down for this purpose. A slot may be provided to accommodate the number plate.
Patent GB-1499876-A (GB)
Title: Methods of electroforming meshes or screens
IPC: C25D1/08
Filed: 1975-02-07
Abstract: 1499876 Electro-forming mesh EMI Ltd 7 Feb 1975 [7 Feb 1974] 05688/74 Heading C7B A mesh with relatively wide bars is made by forming a master pattern having a plurality of electrically conductive strips corresponding to each mesh bar, electro-plating sufficient metal to cause joining together thereof across each plurality of strips to form the bars of the mesh, and stripping the mesh from the master. A glass master, having ruled or etched groups of grooves, containing sputtered metal e.g. Pd may be electroformed with Cu. The mesh may be square, rectangular or lozenge-shaped and the bars may have unequal widths. The mesh may be soldered to a coarser mesh and/or fastened to a support ring to make a microsieve.
Patent GB-580110-A (GB)
Title: Improvements in and relating to the grinding and polishing of lenses
IPC: B24B13/02
Filed: 1944-03-29
Abstract: 580,110. Lens grinding apparatus. LIEBOWITZ, B. March 29, 1944, No. 5805. [Class 60] Lenses are ground and polished on opposite faces simultaneously by the use respectively of a rotating tool treating one face and an oscillating or orbitally moving tool, the path of which may vary periodically, acting on the other face ; the lens is supported by the tools only, no holder being used. The apparatus is described as for use in a bench type drill, having a base 61 and a post 62 carrying an adjustable member 63, and comprises a lower lap 12 and an upper lap 13 between which the lens 11 is located. The lap 13 is removably mounted on a rod 14b slidable in a member 14, itself slidable in a sleeve 16 in which it may be keyed to prevent rotation. The rod 14b is pressed by a spring 14c and its axial movement is limited by a screw 14d movable in a slot 14e ; the sleeve 16 has at its lower end an enlarged portion 16b receiving transverse pivot pins 17 held by the arms of a fork 18 bored for rotational mounting on a stub shaft 20 secured in a bracket 22 adjustable on the shaft portion 63a of the member 63 ; the upper end of the member 14 has therein a socket to receive the ball of a ball-pin 23, which is held in a swinging arm 24 by a pin. The pin 23 is moved in an orbital path the radius of which varies periodically between a maximum and a minimum, thus giving the lap 13 a varying conical motion, by gearing comprising a pinion 32 held from rotation by an arm 43 and rotatable on a shaft 31 secured to a disc 30, which, in turn, is secured to a disc 29 ; the shaft and discs are rotated by the drill chuck 64, and through a planetary gear 33 engaging the pinion 32 and adjustable members 38, 41, 42 carried by the discs this rotation produces the orbital movement, described above, of the pin 23. The lower lap 12 is mounted removably on a cap member 51, screwed on a bearing 52, which is rotatable on a stationary hollow spindle 54 secured to a flange 55 carried by the base 61, and the height of the lap is adjustable by a screwed rod 57 having a head 57a rotatable in and axially movable with the cap 51, the screw engaging in the spindle 54 and being rotatable by a hand wheel 58 ; the screw is locked by an arm 59 and the bearing 52 has a part 52a serving as a pulley. The construction described above is intended for the treatment of lenses other than double-convex lenses with faces of equal curvature ; for those lenses, the pivoted sleeve 16 is not used, the member 14 being mounted in the outer end of an arm pivoted on a vertical axis to another arm, which, in turn is pivoted on a vertical axis to the bracket 22, the lap 12 thus moving parallel to itself when the shaft 31 is rotated by the chuck 64. This last described arrangement may be used also for lenses with nearly equal radii of curvature. Grinding or polishing medium is supplied by means of a cup 81 carried by the lower lap 12, the medium covering the lens. Lenses may be mounted in groups on a lenticular shaped block and ground simultaneously.
Patent GB-747400-A (GB)
Title: Improvements relating to rotary power clutch transmission mechanisms
IPC: F16D21/04
Filed: 1953-03-02
Abstract: 747,400. Positive clutches. SHORT, P. J. Feb. 23, 1954 [March 2, 1953], No. 5805/53. Class 80(2) A driven shaft 1 has helical splines 4, 5, on which are threaded clutch members 8, 9 with teeth 13, 18 alternately engageable with teeth 14, 19 on driving gears 6, 7 forming part of a change-speed gear, and dogs 3 which are engaged by either of two sets of splines 21, 22 on an axially movable locking sleeve 20 rotationally connecting the clutch members 8, 9. Oppositely directed pawls 11, 16 on the clutch members can engage the teeth 14, 19. The position of the locking sleeve 20 is controlled by a striker fork 20A biased to the left or right by springs 26, 28 compresesd by a rod 20B positioned by a spring urged plunger 25. As shown, the teeth 18 19 are engaged. To engage the teeth 13, 14, the rod 20B is first moved to the left of the Figure, to compress the spring 26. With torque continuing to be transmitted by the splines 21 to the dogs 3, the locking sleeve does not move. When torque is no longer transmitted, as by closing, the throttle of a vehicle in which the change-speed gear is mounted, the spring 26 is able to move the locking sleeve 20 to the left to disengage the splines 21 from the dogs 3 until further movement of the locking sleeve is balked by the splines 22 abutting the ends of the dogs 3. Driving torque is restored e.g. by opening the throttle, and the clutch members 8 9 screw along the helical splines 4, 5 to disengage the teeth 18 19. The pawls 11 then ratchet over the teeth 14 and, as the gear 6 speeds up, engage at synchronism to complete the leftwards movement of the clutch members 8. 9 and engage the teeth 13, 14. This movement of the clutch members 8, 9 turns them angularly with respect to the shaft 1, so that movement of the locking sleeve 20 to the left is no longer balked and the splines 22 engage between the drawings 3. To re-engage the teeth 18, 19, the rod 20B is moved back to the right and the clutch members 8, 9 screwed along the helical threads 4, 5 by shutting off the driving torque. Slight play is allowed between the splines 21 and dogs 3 so that when the driving torque is restored the clutch member 9 screws slightly to the left; when driving torque is interrupted, to disengage the teeth 18, &c., as already described, the clutch member 9 screws back to the right so that there is no load on the locking sleeve 20.
Patent GB-1479425-A (GB)
Title: Bis-esters of acrylic acids containing free hydroxy groups in the molecule and their use in dental compositions
IPC: A61K6/083
Filed: 1975-02-11
Abstract: 1479425 Bis-acrylates containing hydroxyl groups; their preparation and use KULZER & CO GmbH 11 Feb 1975 [12 Feb 1974] 5827/75 Heading C2C [Also in Division C3] Compounds of the formula wherein R<SP>1</SP> and R<SP>2</SP> are hydrogen or methyl and Z is a group of the formula may be obtained by adding on 2 molecules of an hydroxyalkyl acrylate or methacrylate, in which the alkyl group contains 2 or 3 carbons, to a bis - epoxide which is 3(3,4 - epoxycyclohexyl) - 8,9 - epoxy - 2,4 - dioxaspiro- (5,5) - undecane, the 3,4 - epoxycyclohexylmethyl ester of 3,4-epoxycyclohexane carboxylic acid, bis(3,4-epoxy-6-methylcyclohexyl. methyl)adipate, bis(2,3 - epoxycyclopentyl)- ether, the bis-glycidyl ether of dihydroxy tricyclo [5,2,1,0<SP>2,6</SP>] decane or bisphenol A diglycidyl ether, in the presence of a catalytic amount of boron trifluoride etherate, generally at a temperature below 120‹ C.
Patent GB-792735-A (GB)
Title: Apparatus for automatically applying adhesive tape to a box
IPC: B65B7/28
Filed: 1956-02-24
Abstract: 792,735. Applying adhesive tape. CELLOPHANE. Feb. 24, 1956 [March 10, 1955], No. 5848/56. Class 73 An apparatus for affixing adhesive tape comprises a rotatable support 17 for the object to be taped, a pivoted plate 31 carrying a taping roller 29 which is supplied with adhesive tape 28 from a roll 26, a retracted knife 76 which can swing down to cut the tape at the end of the taping phase and means for operating the same. A ripstrip 38 may also be led from a spool 36 to a guide 30 on the roller 29 where it is stuck on to the tape 28 before the latter is applied. A pedal 2<SP>1</SP> controlled by a spring 19 (Fig. 2, not shown) is connected by a rod 3 to a member 4 which is pivoted on a bar 6. The member 4 carries an abutment 7 which holds a box 8 on to the support 17 and also a stud 11 which is urged by a spring 14 against a collar 13<SP>1</SP> on a shaft 20. The shaft 20 carries a cam plate 20<SP>1</SP> which cooperates with a post 22<SP>1</SP> mounted on the plate 31. At the end of the shaft 20 is a cam 45 which has a projection 80 which co-operates with an electrical switch 48. Depression of the pedal 2<SP>1</SP> lifts the abutment 7 so that the box 8 may be replaced after each cycle. During the latter motion the stud 11 overrides a projection B on the collar 13<SP>1</SP> without rotating the shaft 20. On releasing the pedal 2<SP>1</SP> the spring 19 reasserts and the member 4 clamps the box 8 on to the support 17. The stud 11 then engages a re-entrant (Fig. 4, not shown) on the projection 13 causing the shaft 20 to rotate a small amount. This rotation allows the post 22<SP>1</SP> to move into the nose 23 of the cam track on the plate 20<SP>1</SP> which permits the plate 31 to swing towards the support 17 under the influence of a spring 33 so that the roller 29 engages the box 8. It also rotates the cam 45 so that the projection 80 disengages the switch 48 and starts an electric motor 49. The motor 49 drives pinions 50 and 51 and the crank 53' so that an oscillating motion is transmitted through pinions 54 and 56 to a shaft 57. The motion of the shaft 57 in one direction is transmitted through a ratchet 58 only to rotate the support 17 and wind the tape on to the container. The subseauent motion of the shaft 57 in the reverse direction transmitted through a ratchet '70 only to rotate the shaft 20. This causes the cam mechanism 22, 22<SP>1</SP> to swing the plate 31 back and withdraw the roller 29 from the container 8. At the same time the cutter assembly 76, 77, 78 rotates downwards and cuts the tape between the roller and the box. The shaft 20 having completed a revolution. the projection 80 on the cam 45 again contacts the switch 48 and stops the motor 49. The cutter assembly consists of the knife 76, two piercing members 77 which make slits on either side of the end of the rip-tape, and a presser member 78 which completes the application of the end of the adhesive tape after it has been cut.
Patent GB-684212-A (GB)
Title: Pit prop
IPC: E21D15/28
Filed: 1951-03-12
Abstract: 684,212. Pit props. DIRECTIE VAN DE :STAATSMIJNEN IN LIMBURG. March 12, 1951 [March 16, 1950]. No. 5895/51. Class 20 (ii). In a telescopic pit-prop collapsing against the resistance of frictional clamping means, one of the friction surfaces is on a part formed with a neck sc as to be deformable tc allow for irregularities or the other friction surface The friction wedge 8 is made deformable about vertical axes by reducing its cross section between its friction surfaces and the middle 13, against which bears the pressing plate 7. The wedge 8 may be made deformable about an horizontal axis. In a modification, a friction surface of a box section inner prop member bears against a wall connected by a resilient neck to the locking clamp.
Patent GB-1242638-A (GB)
Title: Dihydroxy-benzene disulphonates
Inventor: BEAN FREDERIC ROLAND
IPC: C07C309/41
Filed: 1969-02-04
Abstract: 1,242,638. Sulphonated phenol salts. EASTMAN KODAK CO. 4 Feb., 1969 [5 Feb., 1968], No. 5951/69. Heading C2C. A method of producing a di-(alkali metal) and/or a di-(ammonium) salt of a dihydroxybenzene disulphonic acid which is in aqueous solution together with sulphuric acid at a pH below 2 comprises mixing the solution with an alkali metal and/or ammonium base, respectively, the amount of said base being insufficient to raise the pH of the mixture above 2. The aqueous solution containing the disulphonic acid and sulphuric acid may be produced in situ by sulphonating the corresponding dihydroxybenzene with a reagent containing benzene and diluting the reaction mixture with water. Examples describe the preparation of the disodium salts of catechol disulphonic acids.
Patent GB-194305-A (GB)
Title: Lubricator
IPC: F16N19/00
Filed: 1923-03-01
Abstract: 194,305. Allimann & Girod. March 4, 1922, [Convention date]. Oil-hole closures. - A cover b is removably held on a lubricator a by elastic means. In the form shown in Fig. 1, an elastic split sleeve c is held between flanges a<2>, a<3> of the body a and presses against the cover. Alternatively, the sleeve may be held between flanges on the internal face of the lid to press against the body. In the form shown in Fig. 5, the elastic means comprises a split spring ring d<3> engaging grooves on the body and cover. According to the Specification, as open to inspection under Sect. 91 (3) (a), the cylindrical portion of the lid may be formed with slits forming elastic tongues c<1>, Fig. 6 (Cancelled), the tongues having grooves c<2> engaging a rib a<2> of the body. A chain e connects the cover to the body. This subject-matter does not appear in the Specification as accepted.
Patent GB-797116-A (GB)
Title: Improvements in or relating to the control of electrically driven mechanism
IPC: G05D3/12
Filed: 1956-02-27
Abstract: 797,116. Controllers; control of motors. NAIMER, H. Feb. 27, 1956 [March 12, 1955], No. 6078/56. Class 38 (3). [Also in Group XXXVIII] An electric motor 1 selectively locates a crank-rod 8 in one of several predetermined positions according to which one of a number of contacts 70-75, forming part of a remote control switch 69, is closed. The motor drives, through gearing, a high-speed cam-shaft 4 for opening switch 10 over a fraction of each revolution of the cam and closing it over the remainder of the revolution. A cam-shaft 6 is also driven by the motor, at low speed, for operating contacts 60-66 of switch 12 in accordance with seven angular positions of the cam, the arrangement being such that, in each of these angular positions, two adjacent contacts are opened and all others are closed. As shown, the motor is at rest with the crank rod 8 in its fourth position due to the fourth switch 73 having been closed. The rod is moved into its fifth position, for example, by closing contact 74 and opening contact 73, whereby forward contactor 21 is energized through contacts 74, 65, 66, and the motor is driven in the appropriate direction. After a short period, switch 10 closes and the energization of the contactor 21 is maintained through holding contact 26. In the meantime, contact 65 opens and contact 63 closes so that the motor is stopped and a brake applied when the shaft 4 has moved into the position in which the contact 13 is opened. If the switch 69 is then adjusted to its second position, for example, the reverse contactor 20 is energized and the motor runs in the opposite direction until it is stopped in the corresponding position of the shaft 6. Simultaneous closure of two contacts of the switch 69 causes the motor to oscillate continuously between the two selected positions.
Patent GB-1254264-A (GB)
Title: Improvements relating to rotary-piston internal combustion engines
IPC: F02B53/12
Filed: 1970-02-09
Abstract: 1,254,264. Rotary-piston internal combustion engines. DAIMLER-BENZ A. G. Feb. 9, 1970 [Feb. 15, 1969], No.6118/70. Heading F1F. In a rotary-piston I. C. engine having a sparkplug disposed in a peripheral casing wall and provided with electrodes projecting into a plug chamber communicating with the engine combustion space, to improve mixture preparation and distribute the heat of combustion more evenly, the plug chamber and combustion space are connected by two parts spaced in the direction of the engine axis. Applied to an engine having a threesided piston planetarily rotatable within a casing having a two-lobed epitrochoidal inner surface, the plug chamber 4, Fig. 1, into which the electrodes 3 of a spark-plug 2 project is formed with a conical end having two parts 5 disposed at right-angles to the coned end communicating with the combustion space 8 of the engine. The parts may be the same diameter (as shown) or of different diameters. In another embodiment, instead of the longitudinal axis of the plug 2 being in the mid transverse plane of the engine casing it may be disposed at an angle thereto so that one part is longer than the other. A second sparkplug having a single part connecting its plug chamber to the engine combustion space may be fitted after the first plug in the direction of piston rotation. The two parts 5 as well as being spaced longitudinally may also be spaced in the direction of piston rotation.
Patent GB-755550-A (GB)
Title: Improvements in revolving sewage distributors
IPC: C02F3/04
Filed: 1954-03-03
Abstract: 755,550. Liquid distributers. BROWN, C. R. B. May 18, 1955 [March 3, 1954], No. 6199/54. Class 69 (3). A rotary sewage distributer with horizontal arms F rotated by jet reaction about a fixed liquid supply column A has a speed regulating dashpot fixed to the centre column, the piston H of which is reciprocated against liquid in the dashpot cylinder G by a linkage P. A roller R on the linkage rides on a switchback-shaped track S secured to the rotary chamber C, and the speed of movement of the piston, and hence the distributer speed, is controlled by the flow rate of dashpot liquid through an orifice in the piston. Two dashpots may be used. In a modification the dashpot piston is reciprocated by a toothed wheel secured to the rotating part of the distributer which meshes with a pinion wheel which drives a crank connected to the piston linkage.
Patent GB-345449-A (GB)
Title: Improvements relating to money handling machines
IPC: G07D1/00
Filed: 1930-02-25
Abstract: 345,449. Money-delivery apparatus. BRANDT, E. J., Watertown, Wisconsin, U.S.A. Feb. 25, 1930, No. 6265. [Class 116.] A tray or box for holding stacks of coins has a hinged cover which when open leaves the tray free at the front and top, and is so mounted on a machine for delivering money that the coinejecting members extend through a wall of the tray. In one form, the tray 22, Fig. 3, rests on a ledge 20, having lugs 21 passing through openings in a flange 23 of the tray, which is also retained in position by the engagement of latches 28 in plates 26, and is divided by vertically disposed plates into a series of coin-compartments, with each of which are associated ejecting fingers 8 and pivoted members 41. A movable bar 47, Fig. 9, disposed in a recess in the back plate 22 of the tray is provided with inclined surfaces 49 which may depress the levers 8 and the ends 42 of the members 41, thus rendering the former inoperative and causing projections 44 on the latter to engage the bottom coin of each compartment to prevent delivery. The bar 47 is moved by means of a pivoted lever 52 and is locked in its operative position by the engagement of a hook 55 and a projection 64, Fig. 10, on a spring-pressed locking member 65 which is raised by a projection 69 on rotation of the key-operated shaft 67. A cover for the tray comprises vertical and horizontal portions 71, 72, Fig. 13, which are hinged to the tray at 73 and may be supported in open position by the projections 74. The portion 71 is shaped to conform with the sizes of the coins in the various compartments and is provided with sight openings, whilst the portion 72 has openings 76 through which coins may be inserted. Hooks 78, 92 engaging projections 79, 93 on spring-pressed plates 80, 94 serve respectively to lock the cover to the tray and the tray to the machine, a shaft 83 with cams 84, 85 selectively releasing the locking-devices when rotated to the right or to the left. In order to prevent operation of the machine and therefore to give warning when the compartments are empty, members 99, Fig. 3 are disposed so as to project into the coin compartments when the latter are nearly empty ; the ends 16 of levers 14 therefore move forward and cause rollers 13 to prevent forward movement of the ejecting mechanism. In another form having no means by which the ejecting mechanism is rendered inoperative, and in which no means is provided for locking the tray to the machine, the cover is released by operating a look to move a slidable member 117, Fig. 21, to the left, thus causing a plate 120 to move a pivoted bolt or dog 114 so that a projection 115, Fig. 22, thereon is withdrawn from an opening 116 in the cover. A form without means for locking the cover or the tray and without means for rendering inoperative the ejecting mechanism is also described.
Patent GB-1196832-A (GB)
Title: Refractory Furnace Lining and Method.
IPC: F27D1/00
Filed: 1968-02-08
Abstract: 1,196,832. Hearths. J. E. BAKER CO. 8 Feb., 1968 [10 Feb., 1967], No. 6286/68. Heading F4B. [Also in Division C1] A metallurgical furnace has at least a bottom lining comprising a dry mixture of dead burned dolomite particles having a screen analysis of: particles retained on a “ inch screen 5-23%, particles retained on <SP>3</SP>/ 16  inch screen 7-17%, particles retained on # inch screen 9-20%, particles retained on 10 mesh screen 6-16%, particles retained on 20 mesh screen 4¢-18%, particles retained on 50 mesh screen 9-28%, particles retained on 100 mesh screen 1-15%, particles passing a 100 mesh screen 13-22%, and being compacted to a density of 2.6 to 2.9 g./c.c. by applying high frequency vibrations, e.g. 5000-7000 c.p.s. After compaction the mixture is fired to ceramically bond at least the surface of the mixture.