GB2220965A - Drainage channel - Google Patents

Abstract

The upper opening in a channel member forming a drainage channel is covered by a grid (14) fixed to the channel member via projections (18) on the interior of the side walls of the channel. This is achieved by connecting the grid to a bracket (17) via a bolt (16) and then engaging hooked ends of the bracket with the projections before tightening the bolt. <IMAGE>

Description

DRAINAGE CHANNELS The invention relates to drainage channels and methods for their manufacture.

Drainage channels are commonly formed from a number of channel-section members laid end to end. Each member is made from a cast material, such as polymer concrete, and has side walls and an elongate upper opening for the ingress of liquid such as water or chemicals. A grid covers the opening to prevent the entry of leaves and other debris and for the passage of traffic over the channel. In certain applications, particularly where the grid is likely to be subjected to high loads, it is desirable to fix the grid in position by attaching it to the channel member.

EP-A-0081741 and EP-A-0112287 disclose such attachments using a bar whose ends engage in associated apertures in respective opposite side walls of the channel member. A threaded end of a bolt engages the bar and the head of the bolt engages the grid so that tightening the bolt draws the ends of the bar against the apertures and draws the grid down against the channel member, so fixing the grid to the channel member.

Description of Invention "Mouth-operated medical aspirator" THIS INVENTION relates to a mouth-operated medical aspirator for use by medical personnel in extracting mucus and other fluids from the mouth of a patient, particularly an accident casualty or a newly born baby.

A known disposable mouth-operated medical aspirator is illustrated in Figures 1 and 2 of the accompanying drawings.

Referring to Figures 1 to 3, the known aspirator comprises a container in the form of a cup-shaped transparent receptacle 2 closed by a cap 5. The receptacle 2 has a circular base 3 and a substantially cylindrical side wall 3' which flares slightly from the base 3 to an open end of the container which is formed on its rim with an enlarged lip 4 (Figure 3). The receptacle 1 is made of relatively rigid plastics material.

A cap 5 has a circular top 6 from which depends a peripheral skirt 7 which is formed over part of its circumference with a projecting finger grip 8 by which the cap may be manipulated. As shown in Figure 2, a circular flange 9 extends downwardly from the top 6 of the cap to define with the skirt 7 a channel 10 adapted to receive the lip 4 when the cap is fitted onto the open end of the container. The cap 5 is made of relatively resilient plastics material and the channel is dimensioned so that it tightly receives the lip 4 to STUB AXLE This invention is concerned with a stub axle and a method of providing a vehicle axle with a stub axle having a passage therethrough by which inflation air can be supplied to or removed from the tyre of a wheel mounted on a hub mounted for rotation on the stub axle.

A number of methods are known for providing a vehicle with "central tyre inflation" systems in which inflation air from a fixed source on the vehicle can be supplied to a tyre of a rotating wheel of the vehicle.

This gives the facility for increasing or decreasing the air pressure in the tyres of a vehicle in accordance with the terrain over which the vehicle is passing. Central tyre inflation has been used primarily on military vehicles to decrease the air pressure when passing over soft terrain and increase the air pressure when passing over hard terrain. The air pressure can be altered by an occupant of the vehicle without leaving the vehicle which may be important under combat conditions.

In a central tyre inflation system, it is necessary to provide a connection between the non-rotating air source on the vehicle and the rotating wheel. One method of providing this connection, where the wheel hub is rotating on a stub axle, is to provide an air passage through the non-rotating stub axle to an outlet into the hub of the wheel or into the interior of the wheel itself. Although such a passage can be formed before the stub axle is secured to the axle casing of the vehicle's axle, the orientation of an inlet to said passage is critical in many cases because of the restricted access TITLE: A mould for producing cast concrete articles This invention relates to a mould for producing cast concrete articles which have a generally regular shape.

Examples of such articles are cast concrete posts such as fence posts and cast concrete gravel boards, also used in fencing. In particular, the invention can be applied to articles which are generally elongate and have a constsnt cross-sectional shape.

It is conventional to produce concrete fence posts in individual steel moulds, the walls of which make an angle of greater than 90" to the base so that the post can be extracted from the mould once the concrete has set. Where the posts are to be slotted posts, as used in conjunction with fencing panels, then removable bolted ribs are fitted inside the mould, and these ribs have to be unbolted and removed from the mould with the posts, before the ribs themselves are removed from the sides of the posts.

It is desirable for fence posts to have a square cross section and if the divergence of the mould walls is too great, then this feature is compromised. However, if the divergence of the walls is too small, then the posts are difficult to extract from the moulds.

Where individual moulds are used, handling of the finished posts becomes a problem. The posts are heavy and have to be manhandled for transport and storage.

According to the invention, there- is provided a mould for producing cast concrete articles, the mould having a plurality of mould cavities, each for producing one article, with the cavities having an open top face, wherein the mould APPARAIUS FOR CLOSING AN OPENING IN A WXLL STRDCTERE This invention relates to apparatus for closing an opening in a wall structure.

Roller shutters have been widely used in continental Europe for many years.

Roller shutters provide security, privacy and assist energy saving in a practical and decorative manner. The increase in vandalism and burglaries to property in recent years has led to an increased demand for an effective deterrent against break-in. As roller shutters can be made to be self locking and cannot be pushed up from the outside they have been proven to be an effective deterrent whilst also being more aesthetic than bars or grills, which are usually fixed permanently in position across windows. Further advantages include absolute privacy, protection against excessive heat and radiation, excluding draughts, insulating doors and windows and the ability to provide for ventilation without draughts.

Roller shutters are also very versatile and can be used to close off windows, doors, garages, warehouses and mar,y other forms of opening.

The method of building houses and the like on the continent differs from that used in the United Kingdom in that the walls of continental houses tend to have a single brick or concrete skin, whereas houses built in the United Kingdom tend to have walls with two skins, with a cavity therebetween.

According to one aspect of the present invention, there is provided apparatus for closing an opening in a wall structure, comprising a lintel for extending across an upper edge of said opening, frame means extending along other edges of said opening, and an assembly including a retractable cover for said opening, said cover being displaceable between a relatively extended condition in which it covers said opening and a relatively retracted condition in which said opening is substantially uncovered, said lintel, said frame means and said assembly occupying a spatial relationship relative to one another which relationship was determined prior to mounting of said apparatus at said opening.

According to a second aspect of the present invention, there is provided apparatus for closing an opening in a wall structure, comprising IMPROVEMENTS IN OR RELATING TO PUSH BUTTONS The present invention concerns improvements in or relating to push buttons, especially but not exclusively push buttons for use in amusement or gaming machines.

Amusement or gaming machines incorporate a number of push buttons activated by the player at different stages during the course of a game. To indicate which button has to be pushed they often incorporate an illuminating lamp and consequently the button must be of such a construction that it can accommodate such a lamp together with its lamp holder. In addition, the button housing must accommodate return spring means as well as push rods which are adapted to engage with the actuating button on a micro switch carried on the end of the button housing.

The micro switch is provided with electrical connections of the spade type and is adapted to receive conductors carrying current to and from the button and to and from the illuminating bulb of the button. A gaming machine may have many buttons and, it is a time consuming and consequently expensive operation to provide spade connectors on the ends of each of the conductors leading to the switch. Furthermore, connectors of this nature are ADJUSTABLE HINGES This invention relates to adjustable hinges, particularly but not exclusively for hanging doors and windows, and in particular to hinges incorporating an eccentric bushing for adjusting the position of ' the pivotal axis relative to one of the relatively pivoted hinge members.

Various constructions of such hinges have been proposed. In one construction a plastics flanged bushing in which the hinge pin is journalled is provided on its radially outer surface with a longitudinally extending rib which can be selectively located in one of a plurality of angularly spaced longitudinal recesses provided in the bore wall of said one hinge member, the bore in the bushing being eccentric to the outer surface of the bushing, whereby the bushing can be assembled to said one hinge member in different angular positions to provide adjustment of the pivotal axis relative to said one hinge member.In order to make an adjustment it is necessary to disassemble the hinge, by removing the hinge pin and separating the hinge members, and then extract the bushing from the knuckle of said hinge member, reinsert the bushing in the hinge member after turning it to a new position in which the rib is received in a different recess, and reassemble the hinge. A disadvantage of this arrangement is the 'need to disassemble the hinge to make an adjustment, particularly so when the hinge is mounting a heavy door.

That construction of hinge was a development of the hinge described in Patent Specification GB 1 330 499.

The post card may be of two designs, one with the reverse of the post card blank so that the customer may write their own message, in which case they arrive at location 11 or alternatively they may be printed on the reverse of the post card with a message. The post card packs are available in units of 5, 10 and 20 cards. In this mode the machine is operated to select the message and the language required to actuate a printer at location 12 printing the predefined message on the post card.

When the photograph has been taken the exposed post card falls into an automatic developing unit 13 contain a developer 14. The recording and printing process may take one of the following forms: (i) Conventional wet photographic (ii) Dry instant photographic (iii) Video print electronic (with final printing in wet or dry form).

After the required developing time has expired the developed photograph with the selected message printed on its reverse side is transported by a transport and delivered to the customer at the collection slot 15.

The photographic machine is preferably provided with state of the art electronic controls operated by means of a 5 metre lead into the camera and electronic flash which should provide a good infill of light for the subject close to the camera.

The housing will have strategically located access panels to service the automatic developer and printer units and to replenish the consumable contents i.e. the post cards.

The video print electronic photographic apparatus may be manufactured as a portable unit i.e. it is mobil and is connected to the photographic machine by an electric wire to transmit the electronic picture for processing in the machine.

Figure 2 illustrates the reverse side of the post card 8 used with the photographic apparatus of Figure 1.

AUTOMATIC MEDICINE DISPSNSING APPARATUS The present invention relates to an automatic medicine dispensing apparatus.

Conventional dispensing bottles have a glass bottle for containing infusion therein, an outer plastic net for suspension of the bottle from a stand, an infusion tube for transmission of the infusion, a flow control device attached to said infusion tube to control the flow of the infusion, and a hypodermic needle for hypodermic injection. When a dispensing bottle is suspended from a stand, the infusion follows the blood circulation of a patient.

Instillation into a patient's body is performed by suspending the dispensing bottle from a high level position to provide a gravity feed such that the infusion follows the blood circulation of the patient.

During instillation, the pressure force, following the reduction of the infusion, will gradually reduce and the instillation speed will consequently slow down. Therefore, a nurse will have to frequently check the instillation speed and make proper adjustment. Because the nurse is normally responsible for taking care of numerous patients at a time, to frequently check and adjust the instillation speed of dispensing bottles is a large burden on the nurse.

Because conventional dispensing bottles are of a disposable type, the glass bottle and the plastic wrapping net are thrown away after each use. Therefore, a large amount of garbage is produced every day in every hospital. More particularly, the handling of the waste glass from dispensing bottles requires much space for collection, and the handling charge to the hospital is increased.

The present invention seeks to at least partially mitigate the foregoing difficulties.

According to this invention there is provided an automatic medicine dispensing apparatus including support means for supporting an inverted collapsible dispensing bottle, and spring bias means arranged to apply pressure to a base of said dispensing bottle whereby a substantially constant pressure is applied to said bottle to assist flow of infusion within said bottle in conformity with blood circulation of a patient.

The invention will now be described by way of example with reference to the accompanying drawings in which:

Claims (9)

1. CLDLS 1. A multiple dice block having any side of the block divided in some way along the length of the block into two or more segments , each segment representing one die or other action generating device for use in a game.
2. 2. A multiple dice block as claimed in claim 1 which has a cross section as an equal sided figure.
3. 3. A multiple dice block as claimed in claim 1 or claim 2 which has a hexagonal cross section.
4. h. A multiple dice block as claimed in any preceding claim which has any segment marked to differentiate it from another segment.
5. . A multiple dice block as claimed in any preceding claim which has any segment differentiated by colour , shading or colour and shading.
6. 6. A multiple dice block as claimed in any preceding claim which has any segment differentiated by any variety of symbol or symbols or combination of any variety of symbol or symbols.
7. 7. A multiple dice block as claimed in any preceding claim which has any face of any segment marked with any variety of symbol or symbols or combination of any variety of symbol or symbols.
8. 8. A multiple dice block as claimed in any preceding claim which has any face of any segment marked with any colour or shading or colour and shading.
9. 9. A multiple dice block substantially as described herein with reference to Figures 1 -2 of the accompanying drawing.